Customized fiber posts in root canals prepared with and without laser application: a pull-out evaluation.

This study evaluated the effect of fiber post customization and laser application on the results of pull-out tests in endodontically treated teeth. Forty-eight bovine incisors were stored in aqueous 2% formaldehyde (pH 7.0) for 30 days. At the end of the storage period, the incisors were scraped with No. 11/12 periodontal curettes, rinsed with water and sodium bicarbonate, and stored in 0.9% saline solution for 7 days. Roots with similar shape and dimensions were selected and sectioned to a standard 17-mm length. Root canals were prepared and filled to a depth of 12 mm. The roots were divided into 4 groups (n = 12): 1, conventional fiber post and no laser application; 2, customized fiber post and no laser application; 3, conventional fiber post and laser application; and 4, customized fiber post and laser application. After removal of the obturation material for post space preparation, the canals were enlarged, and a laser beam was applied to the roots of teeth in groups 3 and 4 as an auxiliary disinfection procedure. After cementation of the posts, a pull-out test was performed using an axial tensile load at 0.5 mm/min in a universal testing machine. Analysis of variance and the Tukey test were used for statistical analysis of the results. The mean (SD) maximum tensile force was 10.18 (4.73) kgf in group 1, 38.89 (6.49) kgf in group 2, 27.74 (10.07) kgf in group 3, and 38.92 (6.89) kgf in group 4. These values were significantly higher in groups 2 and 4 than in group 1 (P < 0.05). The customization of fiber posts used for the restoration of pulpless teeth resulted in significantly (P < 0.05) greater pull-out test values, a thinner cement layer, and improved retention.

Photoelastic comparison of single tooth implant-abutment bone of platform switching vs conventional implant designs.

OBJECTIVES: The maintenance and stability of peri-implantar soft tissue seem to be related to the crestal bone around the implant platform and different implant designs connections might affect this phenomenon. The aim of this study was to evaluate by photoelastic analysis the stress distribution in the cervical and apical site of implant-abutment interface of conventional implant joints (external hex, internal hex and cone morse) and compare to the novel platform switching design. MATERIALS AND METHODS: It was fabricated photoelastic models using five different implant-abutment connection, one set of external hex (Alvim Ti, Neodent, Curitiba, Brazil), one set of internal hex (Full Osseotite, Biomet 3i, Florida, USA), one cone morse set (Alvim CM, Neodent, Curitiba, Brazil), and two sets of internal hex plus platform switching concept (Alvim II Plus, Neodent, Curitiba, Brazil) (Certain Prevail, Biomet 3i, Florida, USA). These models were submitted to two compressive loads, axial from 20 kgf (load I) and another (load II), inclined 45° from 10 kgf. During the qualitative analysis, digital pictures were taken from a polariscope, for each load situation. For the quantitative analyses in both situations of load, the medium, minimum and maximum in MPa values of shear strain were determined in the cervical and apical site. The Kruskal-Wallis test was used to compare the results between the different systems and between cervical and apical site were compared using Mann-Whitney U test. RESULTS: The results from qualitative analysis showed less concentration of strain in the cervical area to the internal hex plus platform switching (Certain Prevail), in both situation of load. The same results were get in the quantitative analysis, showing less stress concentrations around the implant Certain Prevail with internal hex plus the novel design (17.9 MPa to load I and 29.5 MPa to load II), however, without statistical significant difference between the systems. CONCLUSION: The minor stress concentration strongly suggest the use of platform switching design as a manner to prevent bone loss around the implant-abutment platform. CLINICAL SIGNIFICANCE: From the result of this study its possible to make clinical decision for implant system which provides implant components with platform switching characteristics.

Retention strength of cobalt-chromium vs nickel-chromium titanium vs CP titanium in a cast framework association of removable partial overdenture.

AIM: There is little information considering the framework association between cast clasps and attachments. The aim of this study was to evaluate the retention strength of frameworks match circumferential clasps and extra resilient attachment cast in three different alloys (cobalt-chromium, nickel-chromium titanium and commercially pure titanium), using two undercut (0.25 and 0.75 mm) and considering different period of time (0, 1/2, 1, 2, 3, 4 and 5 years). METHODS: Using two metallic matrices, representing a partially edentulous mandibular right hemiarch with the first molar crown, canine root and without premolars, 60 frameworks were fabricated. Three groups (n = 20) of each metal were cast and each group was divided into two subgroups (n = 10), corresponding the molar undercut of 0.25 mm and 0.75 mm. The nylon male was positioned at the matrix and attached to the acrylic resin of the prosthetic base. The samples were subjected to an insertion and removal test under artificial saliva environment. RESULTS: The data were analyzed and compared with ANOVAs and Tukey's test at 95% of probability. The groups cast in cobaltchromium and nickel-chromium-titanium had the highest mean retention strength (5.58 N and 6.36 N respectively) without significant difference between them, but statistically different from the group cast in commercially pure titanium, which had the lowest mean retention strength in all the periods (3.46 N). The association frameworks using nickel-chromium- titanium and cobalt-chromium could be used with 0.25 mm and 0.75 mm of undercut, but the titanium samples seems to decrease the retention strength, mainly in the 0.75 mm undercut. The circumferential clasps cast in commercially pure titanium used in 0.75 mm undercuts have a potential risk of fractures, especially after the 2nd year of use. CONCLUSION: This in vitro study showed that the framework association between cast clasp and an extra resilient attachment are suitable to the three metals evaluated, but strongly suggest extra care with commercially pure titanium in undercut of 0.75 mm. CLINICAL SIGNIFICANCE: Frameworks fabricated in Cp Ti tend to decrease in retentive strength over time and have a potential risk of fracture in less than 0.75 mm of undercut.

Data collection about failures in fixed partial dentures: 1-year monitoring / Levantamento das falhas em prótese parcial fixa: acompanhamento de um ano

ABSTRACT Objective: The aim of this study was to evaluate the satisfaction of patients rehabilitated with fixed partial denture and the incidence of failures/clinical complications of prostheses after one year. Methods: The patients answered a questionnaire about the satisfaction degree with dental treatment performed and care maintenance for prosthesis conservation. Clinical and radiographic evaluations of the prosthesis were performed. Data were tabulated for descriptive analysis of the factors assessed, with calculation of absolute frequencies and percentages, and chi-square and Fisher's exact test.. Results: A total of 9.67% failures were found. The most common was the prosthesis loosening (57.14%), followed by ceramic fracture (28.57%), and abutment tooth fracture (14.29%). Biological failures were observed in 30.65%. The most common failure was gingival recession (52.00%), periodontal pocket (24.00%), support periodontal involvement (16.00%), and recurrent caries (4.00%). Radiographic examination showed that 70.97% of the total number evaluated had some kind of failure. There was statistically significant association between satisfaction degree and technical failure (p=0.04). Conclusion: Patients were satisfied after observation period of 1 year. The main failures detected were: crown cementation failure and ceramic fracture; gingival recession, periodontal pocket; manufacture and cementation of short intraradicular post with increased diameter and crown cervical misfit.

RESUMO Objetivo: O objetivo deste estudo foi avaliar a satisfação dos pacientes reabilitados com prótese parcial fixa e a incidência de falhas/complicações clínicas das próteses instaladas após um ano. Métodos: Os pacientes responderam um questionário abrangendo o grau de satisfação pelo tratamento odontológico efetuado e os cuidados de manutenção realizados para a conservação da prótese. Na sequência foi realizada avaliação clínica e radiográfica das próteses. Os dados obtidos foram tabulados para análise descritiva dos fatores avaliados com cálculo de frequência absoluta e percentual, e teste de Qui-quadrado e Fischer. Resultados: Foram encontradas 9,67% de falhas, sendo a mais comum a descimentação (soltura da prótese) (57,14%), seguida da fratura da cerâmica (28,57%), e um caso de fratura no dente pilar (14,29%). As falhas biológicas foram observadas em 30,65%. A falha mais comum foi a recessão gengival (52,00%), seguida por bolsa periodontal (24,00%), envolvimento periodonto de suporte (16,00%), e recidiva de cárie (4,00%). No exame radiográfico 70,97% do número total avaliado apresentaram algum tipo de falha. Houve associação estatisticamente significante entre grau de satisfação e falhas mecânicas (p=0,04). Conclusão: Os pacientes ficaram satisfeitos após um período de acompanhamento de 1 ano. As principais falhas detectadas foram: falha de cimentação da coroa e fratura da cerâmica; Recessão gengival, bolsa periodontal; confecção e cimentação de pino intraradicular curto, pino com diâmetro aumentado e desajuste cervical da coroa.

Perception and expectation. What do patients really want from the dental treatment? / Percepção e expectativa. O que os pacientes realmente querem do tratamento dental?

ABSTRACT Objective The aim of this study was to investigate the subjective aspects related to the perception of dental appearance and expectations of patients who receive dental treatment in graduation clinics of the Araçatuba Dental School. Methods It was evaluated 362 patients of both gender aged over 18. The questionnaire included questions of demographic data, questions to assess facial and dental aesthetics, dental satisfaction and treatments considering patients notion to improve dental esthetics. The data collected was analyzed using descriptive statistics and the chi-square test. Results The factor teeth for facial analysis and factor positioning in the arch for smile analysis were considered the most important subjects regarding the esthetic according to the respondents. 67.5% of patients were dissatisfied with the appearance of their teeth, and dissatisfaction with the color was the most important factor (66.8%). The treatment most desired was tooth whitening and 85.0% of patients said yes to it. Conclusion Respondents place great value on the teeth on the face appearance, and it can be seen that aesthetic treatments are highly valued in all age groups. There is a need for treatments to restore the function, but treatments to improve dental appearance were the most requested.

RESUMO Objetivo Avaliar os aspectos subjetivos relacionados à percepção da aparência dental e expectativas de pacientes que recebem tratamento odontológico nas clínicas de graduação da Faculdade de Odontologia de Araçatuba. Métodos Foram avaliados 362 pacientes de ambos os sexos com idade superior a 18. O questionário incluiu perguntas sobre dados demográficos, perguntas para avaliar a estética facial e dentária, a satisfação dental e tratamentos considerando a noção dos pacientes de melhorar a estética dental. Os dados coletados foram analisados por meio de estatística descritiva e o teste do qui-quadrado. Resultados O fator dentes para análise facial e o fator posicionamento no arco para análise sorriso foram considerados os temas mais importantes a respeito da estética, de acordo com os entrevistados. 67,5% dos pacientes estavam insatisfeitos com a aparência de seus dentes, a insatisfação com a cor foi o fator mais importante (66,8%). O tratamento mais desejado foi o clareamento dental e 85,0% dos pacientes disse sim a ele. Conclusão Os pacientes dão grande valor aos dentes sobre a aparência rosto, e ele pode ser visto que os tratamentos estéticos são altamente valorizados em todos os grupos etários. Há uma necessidade de tratamentos para restabelecer a função, mas os tratamentos para melhorar a aparência dentária foram os mais solicitados.

Surface roughness analysis of four restorative materials exposed to 10% and 15% carbamide peroxide.

The aim of this study was to evaluate the effects of carbamide peroxide (CP) on surfaces of different restorative materials. Porcelain, composite resin, glass ionomer, and amalgam were analyzed in this study. Surface roughness (Ra) was measured before and after treatment with 10% and 15% CP. Fifteen percent CP increased Ra values in both the glass ionomer and amalgam subgroups, while 10% CP increased Ra values in the glass ionomer subgroup only. Changes in restorative material surfaces can be more severe when bleaching is completed without a clinician's supervision. Hence, thorough patient examinations must be done before, during, and after bleaching treatment.

Streptococcus mutans adhesion and releasing of metallic ions in dental alloys

To evaluate the adherence of Streptococcus mutans to the surface of the amalgam and copper/aluminum alloy samples and also evaluate the release of metallic ions. METHODS: The prepared medium was changed every 72 h and analyzed by atomic absorption spectrophotometer. Samples were removed from the prepared medium at 15, 30, 48 and 60 days. RESULTS: The result shows that ions released were statistically different among all groups, and so were both biofilm and pits formation and the corrosion induced by the S. mutans in both types of samples. SEM observation of the samples immersed in the prepared medium with S. mutans showed adherence of microorganisms on the whole surface, in all groups. CONCLUSIONS: The S. mutans adhere to both amalgam and copper/aluminum alloy causing corrosion of those restorations. S. mutans produced a greater ions release in Cu/Al alloy; in amalgam, the ions release was not influenced by exposure to S. mutans...

Hard and soft tissue manipulation to optimize the peri-implant aesthetics - case report

Introduction: The demand for aesthetic results in oral rehabilitation by dental implants in the anterior area constitutes a major challenge for dentists. Objective: The purpose of this paper was to report the management of hard and soft tissues to optimize the aesthetics of a single implant at anterior area. Case report: The patient underwent autogenous block bone graft surgery, Morse taper implant installation, peri-implant soft tissue manipulation through the “roll on" technique, provisional tooth and prosthetic finishing with metal free implant-supported crown. Conclusion: After three years of follow-up, this paper strongly suggests that the combination of bone with gingival techniques proved to be essential for obtaining predictability and adequate esthetic results.

Desordem temporomandibular: prevalência e necessidade de tratamento em pacientes portadores de próteses totais duplas / Temporomandibular disorder: prevalence and need of treatment in complete denture wearers

OBJETIVO: Determinar a prevalência de desordem temporomandibular, assim como a necessidade de tratamento em pacientes portadores de próteses totais duplas a partir dos índices anamnésico e clínico de disfunção. MÉTODOS: A amostra foi composta por 90 pacientes institucionalizados, portadores de próteses totais duplas, selecionados aleatoriamente, com idade média de 67,2 anos. Os dados coletados foram tabulados e os testes estatísticos de Kruskal-Wallis e qui-quadrado aplicados, adotando-se o nível de significância de 5 por cento (p<0,05). RESULTADOS: A prevalência de desordem temporomandibular nesta amostra, de acordo com os índices anamnésico e clínico, foi de 80,0 por cento e 100,0 por cento, respectivamente, e a necessidade de tratamento, de acordo com os mesmos índices, foi de 38,9 por cento e 51,1 por cento, respectivamente. Foi encontrada correlação estatisticamente significante entre os índices anamnésico e clínico. CONCLUSÃO: A prevalência de desordem temporomandibular, bem como a necessidade de tratamento em pacientes portadores de próteses totais duplas nesta amostra foi alta.

OBJECTIVE: This study used the anamnestic and clinical dysfunction Indices developed by Helkimo to determine the prevalence of temporomandibular disorder and need of treatment in complete denture wearers. METHODS: The sample consisted of 90 institutionalized patients selected randomly. They had a mean age of 67.2 years and wore upper and lower complete dentures. The collected data were tabulated and the Kruskal-Wallis and chi-square tests were used. The significance level was set at 5 percent (p<0.05). RESULTS: According to the anamnestic and clinical dysfunction indices, the prevalence of temporomandibular disorder in this sample was 80.0 percent and 100.0 percent, respectively, and the need of treatment was 38.9 percent and 51.1 percent, respectively. A significant correlation was found between indices anamnestic and clinical dysfunction. CONCLUSION: The prevalences of temporomandibular disorder and need of treatment in complete denture wearers in this sample were high.

Análise de proporções faciais e sua relação com o formato dentário e com a dimensão vertical de repouso e de oclusão entre discentes institucionalizados / Analysis of facial proportion and its relation with dental form, rest and occlusal vertical dimension between institutionalized students

Considerando-se a importância da estética e do correto registro da dimensão vertical (DV) no sucesso da reabilitação bucal, este estudo teve como objetivos a análise e a comparação de dois métodos de obtenção da DV (Willis e Pleasure) e do espaço funcional livre (EFL), além da aferição e da correlação de medidas faciais e dentárias. Paraisso, realizou-se o registro da dimensão vertical de repouso (DVR), de oclusão (DVO) e do EFL de 30 discentes da Faculdade de Odontologia da Universidade Federal de Goiás. Em seguida, foram obtidas as medidas dentárias de altura e largura dos incisivos centrais superiores (ICS) e da distância intercanino. Foram realizadas medidas para análise facial dos sujeitos da pesquisa, considerando-se as distâncias intercomissura, interalar, interpupilar e intercantal, além de serem registrados parâmetros, como coincidência de linha mediana dentária e facial, tipo de sorriso, formato do rosto e dos ICS, e tipo de mastigação. Os dados coletados foram tabulados, comparados por meio de médias e desvios padrão, e submetidos à análise estatística por meio dos testes estatísticos não paramétricos de Kruskal-Wallis e de Mann-Whitney com nível de 5% de probabilidade. Os resultados não indicaram diferença estatisticamente significativa entre o EFL das duas técnicas. As medidas da análise facial foram compatíveis com dados publicados na literatura; no entanto, não servem de parâmetros para a seleção da distância intercanino. Em56,7% dos casos, houve coincidência entre o formato do rosto e dos ICS, o que pode servir de parâmetro viável na seleção dos dentes artificiais.

Considering the importance of the esthetic and the adequate register of vertical dimension (VD) to the oral rehabilitation, this study had as aims the analysis and comparison of two methods to get VD (Pleasure and Willis),functional space (FE), acquisition and correlation of facial and dental measurements. To do this, rest (RVD) and occlusal vertical dimension (OVD) and FE were achieved from the 30 students of the Federal University of Goias College of Dentistry. Following that, dental measurements of height and of the superior central incisors (SCI) andcanine distance were registered. A facial analysis was performed to get the intercomissura, interalar, interpupilar, intercantal distance, besides register parameters as coincidence of dental and facial line, type of smile, face and SCI forms, and mastication type. The collected data were tabulated, compared by medias and standard deviations, andsubmitted to non-parametrical statistical analysis of Kruskal-Wallis and .Mann-Whitney with 5% of probability. The results doesn?t indicated statistical significant difference between FE of the two techniques. The measures of facial analysis are comparable with literature published data?s, but can?t be used as a parameter to the selection ofintercanine distance. In 56.7% of the cases, there were coincidences of face and SCI forms, which could be a viable parameter in the selection of acrylic resin artificial tooth.

Aspectos relevantes em implantes imediatos pós-exodonticos em área estética / Relevant aspects in esthetic outcomes of immediate implant placement following extraction

O objetivo deste artigo é apresentar um protocolo de tratamento de implantes imediatos de excelente previsibilidade estética e biológica. O caso clínico em questão apresenta comprometimento do elemento 21, que após o exame clínico e complementar constatou a fratura radicular irreparável. O planejamento foi a exodontia da raiz fraturada e instalação de implante imediato com provisionalização imediata, associando biomaterial para preenchimento do gap e enxerto conjunto na vestibular. Para restauração final foram confeccionadas uma coroa zircocerâmica como restauração definitiva do elemento 21 e uma microlâmina em dissilicato de lítio (IPS e.max) no dente 11 para harmonizar contorno e proporção entre os incisivos. O resultado final obtido mostrou-se favorável no follow-up de 1 ano, tanto nos aspectos biológicos dos tecidos peri-implantares e quanto à estética final. Com isso, concluímos que o protocolo adotado mostrou excelente previsibilidade.

The aim of this paper is to present a treatment protocol for excellent aesthetic and biological predictability with immediate implant. In the reported clinical case, the element 21 was compromised with irreparable root fracture. The planning was the extraction of the fractured root and immediate implant placement with immediate temporization, associating biomaterial for gap filling and conjunctive tissue graft. for the final restoration were made a zirco-ceramic crown in the element 21, and a lithium disilicate veneer (IPS e.max) in tooth 11 to harmonize contour and ratio between the incisors. The final result was favorable along the 1 year follow-up for both biological aspects of peri-implant tissues and final aesthetic. Thus, it could be concluded that the adopted protocol showed great predictability.

Fatores locais e sistêmicos relacionados aos pacientes que podem afetar a osseointegração / Local and systemic factors related with the patients that could affect the osseointegration

A técnica de osseointegração revolucionou a Odontologia e trouxe vantagens em relação aos tratamentos convencionais como a preservação dos dentes remanescentes, melhor retenção e estabilidades às reabilitações, com resultados previsíveis e estáveis ao longo do tempo. Mesmo havendo altos índices de sucesso (acima dos 90%), algumas falhas poderão ocorrer e o objetivo deste artigo foi de evidenciar as condições locais e sistêmicas de risco, relacionadas ao paciente, que podem afetar o processo de osseointegração. Após análise e revisão bibliográfica entre o período de 1969 e 2007, verificou-se que o hábito de fumar, irradiação, diabetes, doença periodontal, osteoporose, idade e qualidade óssea inadequada foram os principais fatores relacionados aos pacientes, que podem afetar a osseointegração. A taxa de falhas dos implantes dentários encontrada foi baixa e não foi observada contraindicação absoluta ao tratamento, no entanto, algumas condições são consideradas de maior risco (hábito do tabagismo e tecidos irradiados) e devem ser consideradas durante as etapas de planejamento e os paciente devem ser informados, previamente.

The osseointegration technique revolutionizes the Dentistry and brings advantages compared to the conventional treatment preserving remaining teeth, better retention and stability to the rehabilitations, with foreseeable results and stable in time. Despite having high success rates (more than 90%), some failures could occurs and in this context, the aim of this article was to enhance the local and systemic conditions related with the patients that could affect the osseointegration process. After analysis and literature review from 1969 to 2007, it was verified that smoking habits, irradiation, diabetes, periodontal disease, osteoporosis, age and inadequate bone quality were the main factors related with the patients that could affect the osseointegration. In addition, the failure rate verified were low and it was not observed absolute contra-indication to the treatment, but some conditions were considered of high risk (smoking habits and tissue irradiated) and should be considered during the steps of planning and advise the patients previously to the treatment.

Surface roughness and fatigue performance of commercially pure titanium and Ti-6Al-4V alloy after different polishing protocols.

STATEMENT OF PROBLEM: Surface quality of cast metal is directly related to service performance under fatigue stress. Surface heterogeneities resulting from either finishing or polishing processes or by corrosive agents such as fluoridated solutions, can negatively affect fatigue life. Cast titanium frameworks are difficult to polish, and an accepted polishing protocol has not been established. PURPOSE: This study evaluated and compared surface roughness of cast commercially pure titanium (CP Ti) and Ti-6Al-4V alloy submitted to conventional or electrolytic polishing, correlating the results with corrosion-fatigue strength testing performed in artificial fluoridated saliva. Specimens were also tested in air at room temperature to evaluate the effectiveness of the corrosion-fatigue test model. MATERIAL AND METHODS: For each metal, 40 dumb-bell-shaped rods, 2.3 mm in diameter at the central segment, were cast. Conventional polishing was performed on 20 specimens of each metal following the manufacturer's instructions. A source of continuous electrical current was used for electrolytic polishing of the other 20 specimens of each metal, which were immersed in an electrolytic solution containing 5% fluoridric acid, 35% nitric acid, and 60% distilled water. Surface roughness, Ra (microm), was measured with a profilometer, and fatigue tests were carried out with a universal testing machine using a load 30% lower than the 0.2% offset yield strength. After failure, the fractured surfaces were examined using scanning electron microscopy. Surface roughness means were analyzed with a 2-way analysis of variance and the Tukey multiple comparisons test (alpha=.05). RESULTS: Electrolytic polishing (0.24 +/- 0.05 microm) provided significantly (P <.05) lower surface roughness values than conventional polishing (0.32 +/- 0.06 microm). Regardless of the polishing protocol, surface roughness of Ti-6Al-4V alloy (0.25 +/- 0.06 microm) was significantly lower (P <.05) than that of CP Ti (0.31 +/- 0.05 microm), and the fluoridated environment did not influence fatigue performance. There was no correlation between fatigue performance and surface roughness. CONCLUSION: Surface roughness of Ti-6Al-4V was significantly lower than that of CP Ti. For cast titanium frameworks, the electrolytic polishing regimen was found to be more effective than the manufacturer's polishing instructions with abrasives and rotary instruments. After polishing, differences in surface roughness values did not affect corrosion-fatigue performance.

Impacto do uso de fita adesiva na qualidade de vida de pacientes institucionalizados e usuários de próteses totais convencionais / Impact of the use of adhesive strip over the quality of life of institutionalized patients and wearers of conventional complete denture

Objetivo: Avaliar o impacto do uso de adesivos em formato de fita na qualidade de vida de pacientes institucionalizados e usuários de prótese total convencional. Material e método: Foram selecionados 29 pacientes portadores de próteses totais convencionais duplas e, após exame clínico, aplicou-se um questionário (adaptado e baseado nos índices "Oral Health Impact Profile" e "Oral Health Related Quality of Life") para avaliar questões epidemiológicas (gênero e idade), qualidade de vida (dor, desconforto, limitação funcional, fonética, social, psicológica e estética), paladar da prótese e anseio por tratamento com implantes. Em seguida, os pacientes receberam orientações para o uso de adesivos (Corega Fita Adesiva, GlaxoSmithKline, Rio de Janeiro, Brasil), sendo três na base protética maxilar e dois na base protética mandibular, durante um período de 30 dias. Decorrido esse período, o questionário foi reaplicado, acrescentando-se questões relativas ao desempenho do adesivo, para comparação antes e após o uso da fita adesiva em termos de percentagem. Resultado: Após o uso da fita, houve melhora dos aspectos de limitação funcional, social e psicológica; no entanto, sem aumento dos percentuais nos aspectos fonéticos e estético. Os dados obtidos mostraram 65,5% das respostas afirmando que a adesividade foi mantida entre 6 e 12 horas, que os adesivos mostraram-se ser de fácil remoção (68,9%), além de não alterarem o paladar (89,6%). Houve diminuição pelo anseio de tratamento com implantes, passando de 75,8 para 37,9%, depois do uso do adesivo. Conclusão: Os resultados evidenciaram um impacto positivo na qualidade de vida dos respondentes após o uso da fita adesiva, evidenciando diminuição de dor e desconforto, principalmente das próteses totais inferiores.

Objective: Evaluate the impact of the use of strip adhesive over the quality of life of institutionalized patients and wearers of complete dentures. Material and method: Twenty-nine institutionalized patients wearers of complete denture were selected to this study and after a clinical exam, a questionnaire (adjusted and based upon the index of Oral Health Impact Profile and Oral Health-Related Quality of Life, OHIP and OHQOL) was applied to evaluate issues related to epidemiological conditions (gender and age), quality of life (pain, discomfort, functional limitations, phonetic, social, psychological and esthetic), taste and notion of implant treatment. Following this part, the patients received instruction to use the strips adhesives (Corega Fita Adesiva, Glaxo-Smith-Kline, Rio de Janeiro, Brazil), considering three in maxillary prosthesis and two in the lower prosthesis during a period of 30 days. After this period, all the patients were recall and the questionnaire was reapplied; add some adhesive performance questions, to compare the results before and after the adhesive use in terms of percentage. Result: After the adhesive strips use there were improvement of the functional, social and physcological limitation aspects, but without percentual increasement of phonetic and esthetics aspects. The results showed 65.5% of the answers stating adhesive maintenance between 6-12 hours, easy removal (68.9%), and without change the taste (89.6%). The notion for implant treatment was decreased changing from 75.8 to 37.9% after the adhesive use. Conclusion: The results enhanced a positive impact over quality of life of the respondents after the strip adhesive use, showing decrease of pain and discomfort, mainly of inferior dental prosthesis.

Fatores etiológicos correlacionados à desordem temporomandibular em pacientes portadores de próteses totais bimaxilares: uma análise comparativa / Etiological factors correlated with temporomandibular disorder in complete denture wearers: a comparative analysis

Objetivo: Analisar, comparativamente, a prevalência de desordem temporomandibular, em relação aos fatores etiológicos, tais como gênero, faixa etária e condições clínicas apresentadas pelas próteses totais, de acordo com os índices anamnésico (Ai) e clínico (Di) de disfunção, desenvolvidos por Helkimo, em pacientes portadores de próteses totais. Métodos: A amostra foi composta por noventa pacientes institucionalizados, portadores de próteses totais bimaxilares, selecionados aleatoriamente, com idade média de 67,2 anos. Os dados coletados foram tabulados e os testes estatísticos de Kruskal-Wallis e Qui-quadrado aplicados, adotando-se o nível de significância de 5% (p<0,05). Resultados: Foi observada diferença estatisticamente significante da prevalência de desordem temporomandibular em relação às idades das próteses totais atuais, espaços funcionais livres, desgastes das superfícies oclusais dos dentes artificiais e condições de retenção e estabilidade das próteses totais superiores e inferiores, de acordo com ambos os índices. Conclusão: Os pacientes que usavam próteses totais em condições clínicas adequadas apresentaram menos sinais e sintomas de desordem temporomandibular do que os pacientes que usavam próteses totais em condições clínicas insatisfatórias.

Objective: The aim of this study was to make a comparative evaluation of the prevalence of temporomandibular disorder in complete denture wearers, with regard to the etiological factors, such as gender, age, and complete dentures clinical conditions, according to the anamnestic (Ai) and clinical (Di) dysfunction index, developed by Helkimo. Methods: The randomized sample was composed of 90 institutionalized patients and bimaxillary complete denture wearers, with a mean age of 67.2 years, who were included in this study. The collected data were tabulated and the Kruskal-Wallis and Chi-square statistical tests were applied, at the level of significance of 5% (p<0.05). Results: Statistically significant difference in the prevalence of temporomandibular disorder was observed with regard to the ages of the current complete dentures, free-way space, wear of the occlusal surfaces of the artificial teeth, and the conditions of retention and stability of the maxillary and mandibular complete dentures, according to both the indexes. Conclusion: The patients who wore complete dentures in adequate clinical conditions presented fewer signs and symptoms of temporomandibular disorder than the patients who wore complete dentures in poor clinical conditions.

Efeito de diferentes técnicas de acabamento e polimento sobre a rugosidade superficial de resinas acrílicas utilizadas para restaurações provisórias / Effect of finishing and polishing techniques on the surface roughness of resin acrylic used on temporary restorations

Considerando a importância da lisura superficial das restaurações provisórias, o objetivo desse trabalho foi de avaliar o efeito de diferentes métodos de acabamento e polimento sobre a rugosidade superficial de 05 resinas acrílicas autopolimerizáveis (Dencor®, Dencrilay®, Duralay®, Instatemp® e Vipi Cor®). Um total de 200 corpos de prova foram confeccionados, sendo 40 corpos de prova para cada resina, que foram obtidos a partir de uma matriz bipartida com um molde cilíndrico de aço inoxidável de 10 mm de diâmetro e 3 mm de profundidade. Cada material foi proporcionado de acordo com a recomendação de seu fabricante, inseridos no molde na fase plástica e após polimerização, todos os espécimes foram armazenados em umidificador à 37ºC por 24 horas. Dez espécimes de cada resina foram submetidos a cada um dos seguintes procedimentos: a) sof-lex + branco de espanha; b) sof-lex + selante de superfície; c) pedra-pomes+ branco de espanha; d) pedra-pomes + selante de superfície. Em seguida, a rugosidade superficial média (Ra medidaem μm) foi aferida e registrada pelo rugosímetro (SJ-301, Mitutoyo – Japan) para posterior comparação entre os grupos. Os dados coletados foram submetidos à análise estatística através de testes paramétricos de “Kolmogorov-Smirnov” e análise de variância com nível de significância de 5%. Os resultados evidenciaram diferença estatisticamente significante em relação à rugosidade apenas entre a resina Instatemp® (menos rugosa) e a resina Vipi-Cor® (mais rugosa). No entanto, ao comparar os procedimentos de acabamento e polimento independente do tipo de resina acrílica, os dados evidenciaram diferenças numéricas, porém sem diferença estatisticamente significativa. Dentro das limitações desse estudo, concluiu-se que as resinas acrílicas apresentaram comportamento diferente em relação à rugosidade superficial média frente aos métodos de acabamento e polimento.

Impacto do uso de fita adesiva no grau de satisfação de pacientes institucionalizados e usuários de próteses totais convencionais / Impact of the use of adhesive strip over the satisfaction degree of institutionalized patients and wearers of conventional complete denture

Objetivo: Avaliar o impacto do uso de adesivos em formato de fita no grau de satisfação de pacientes institucionalizados e usuários de prótese total convencional. Material e métodos: Foram selecionados 29 pacientes portadores de próteses totais convencionais duplas e, após exame clínico, aplicou-se um questionário (adaptado e baseado nos índices "Oral Health Impact Profle" e "Oral Health Related Quality of Life") para avaliar questões epidemiológicas (gênero e idade), grau de satisfação acerca de retenção, desempenho mastigatório e paladar da prótese, e anseio por tratamento com implantes. Em seguida, os pacientes receberam orientações para o uso de adesivos (Corega Fita Adesiva, GlaxoSmithKline, Rio de Janeiro, Brasil), sendo três na base protética maxilar e dois na base protética mandibular, durante um período de 30 dias. Decorrido esse período, o questionário foi reaplicado, acrescentando-se questões relativas ao desempenho do adesivo, para comparação antes e após o uso da fita adesiva em termos de percentagem. Resultados: Os dados obtidos mostraram 65,5% das respostas afirmando que a adesividade foi mantida entre 6 e 12 horas, que os adesivos mostraram-se ser de fácil remoção (68,9%), além de não alterarem o paladar (89,6%). Houve diminuição pelo anseio de tratamento com implantes, passando de 75,8 para 37,9%, depois do uso do adesivo. Conclusão: Os resultados evidenciaram um impacto positivo no grau de satisfação dos respondentes após o uso da fita adesiva, mostrando melhora da retenção e do desempenho mastigatório, com exceção de dois grupos de alimentos.

Evaluate the impact of the use of strip adhesive over the satisfaction degree of institutionalized patients and wearers of complete dentures. Material and methods: Twenty-nine institutionalized patients wearers of complete denture were selected to this study and after a clinical exam, a questionnaire (adjusted and based upon the index of Oral Health Impact Profle and Oral Health-Related Quality of Life, OHIP and OHQOL) was applied to evaluate issues related to epidemiological conditions (gender and age), satisfaction degree, chewing performance, taste and notion of implant treatment. Following this part, the patients received instruction to use the strips adhesives (Corega Fita Adesiva, Glaxo-Smith-Kline, Rio de Janeiro, Brazil), considering three in maxillary prosthesis and two in the lower prosthesis during a period of 30 days. After this period, all the patients were recall and the questionnaire was reapplied; add some adhesive performance questions, to compare the results before and after the adhesive use in terms of percentage. Results: The results shows 65.5% of the answers stating adhesive maintenance between 6 - 12 hours, easy removal (68.9%), and without change the taste (89.6%). The notion for implant treatment was decreased changing from 75.8 to 37.9% after the adhesive use. Conclusion: The results enhanced a positive impact over satisfaction degree of the respondents after the strip adhesive use, show showing improvement of the retention and chewing performance, except for two types of food.

Impacto do uso de fita adesiva no grau de satisfação de pacientes institucionalizados e usuários de próteses totais convencionais / Impact of the use of adhesive strip over the satisfaction degree of institutionalized patients and wearers of conventional complete denture

Objetivo: Avaliar o impacto do uso de adesivos em formato de fta no grau de satisfação de pacientes institucionalizados e usuários de prótese total convencional. Material e métodos: Foram selecionados 29 pacientes portadores de próteses totais convencionais duplas e, após exame clínico, aplicou-se um questionário (adaptado e baseado nos índices "Oral Health Impact Profle" e "Oral Health Related Quality of Life") para avaliar questões epidemiológicas (gênero e idade), grau de satisfação acerca de retenção, desempenho mastigatório e paladar da prótese, e anseio por tratamento com implantes. Em seguida, os pacientes receberam orientações para o uso de adesivos (Corega Fita Adesiva, GlaxoSmithKline, Rio de Janeiro, Brasil), sendo três na base protética maxilar e dois na base protética mandibular, durante um período de 30 dias. Decorrido esse período, o questionário foi reaplicado, acrescentando-se questões relativas ao desempenho do adesivo, para comparação antes e após o uso da fta adesiva em termos de percentagem. Resultados: Os dados obtidos mostraram 65,5% das respostas afrmando que a adesividade foi mantida entre 6 e 12 horas, que os adesivos mostraram-se ser de fácil remoção (68,9%), além de não alterarem o paladar (89,6%). Houve diminuição pelo anseio de tratamento com implantes, passando de 75,8 para 37,9%, depois do uso do adesivo. Conclusão: Os resultados evidenciaram um impacto positivo no grau de satisfação dos respondentes após o uso da fta adesiva, mostrando melhora da retenção e do desempenho mastigatório, com exceção de dois grupos de alimentos.

Evaluate the impact of the use of strip adhesive over the satisfaction degree of institutionalized patients and wearers of complete dentures. Material and methods: Twenty-nine institutionalized patients wearers of complete denture were selected to this study and after a clinical exam, a questionnaire (adjusted and based upon the index of Oral Health Impact Profle and Oral Health-Related Quality of Life, OHIP and OHQOL) was applied to evaluate issues related to epidemiological conditions (gender and age), satisfaction degree, chewing performance, taste and notion of implant treatment. Following this part, the patients received instruction to use the strips adhesives (Corega Fita Adesiva, Glaxo-Smith-Kline, Rio de Janeiro, Brazil), considering three in maxillary prosthesis and two in the lower prosthesis during a period of 30 days. After this period, all the patients were recall and the questionnaire was reapplied; add some adhesive performance questions, to compare the results before and after the adhesive use in terms of percentage. Results: The results shows 65.5% of the answers stating adhesive maintenance between 6 - 12 hours, easy removal (68.9%), and without change the taste (89.6%). The notion for implant treatment was decreased changing from 75.8 to 37.9% after the adhesive use. Conclusion: The results enhanced a positive impact over satisfaction degree of the respondents after the strip adhesive use, show showing improvement of the retention and chewing performance, except for two types of food.

Estética imediata com implante Cone Morse - relato de caso / Immediate aesthetic with Morse Taper implant - case report

A procura por uma estética imediata durante a instalação de implantes em regiães anteriores tem sido observada gradualmente na Implantodontia, sendo assim, o cirurgião dentista deve estar habilitado para oferecer ao paciente a melhor opção de tratamento não apenas em termos funcionais, mas também em termos estéticos. Desta forma, a literatura tem sugerido o uso de implantes de conexão do tipo Cone Morse para a resolução de situações clínicas que envolvam regiões anteriores. Assim, a proposta deste estudo foi apresentar um caso clínico e sugerir as particularidades de um planejamento de estética imediata com implante de conexão do tipo Cone Morse instalado na região anterior da maxila. Paciente de 21 anos, do gênero masculino, foi diagnosticado com fratura horizontal ao nível cervical do elemento dentário 11 e submetido … cirurgia de extração, seguida da instalação do implante osseointegrável modelo Flash© (Conexão, Sistemas de Implantes, Arujá, Brasil) com dimensães de 4,3 x 13 mm e geometria de conexão do tipo de Cone Morse. Após os procedimentos cirúrgicos foi realizada a personalização da própria coroa remanescente para instalação imediata como provisório. O procedimento de estética imediata com implantes osseointegráveis empregando o remanescente dentário do paciente ‚ uma técnica eficaz de reabilitação

Patients often search for an immediate aesthetic result on the anterior region during implant placement. Therefore, the dentist should be able to offer the best treatment option in both aesthetic and functional terms. Literature has suggested the use of implants of the type Morse Taper connections to the resolution of clinical situations involving anterior regions. The aim of this study was to introduce a clinical case and suggest a specific immediate aesthetic planning using a Morse Taper connection implant installed in the anterior maxilla. A 21-year-old male with horizontal fracture at the cervical level of the tooth 11 was submitted to surgical extraction, followed by the placement of the implant model osseointegrated Flash© (Conexão, Sistemas de Implantes, Aruj , Brazil) sizes of 4.3 x 13 mm and Morse Taper connection. After surgical procedures the remaining crown was customized for immediate installation as a provisional. The procedure with immediate aesthetic using osseointegrated implants and patients’ coronal remainder is an effective rehabilitation technique

Plastica gengival associada a laminados cerƒmicos para resolu‡Æo est‚tica / Periodontal plastic surgery in association with porcelain veneers for aesthetic resolution

Algumas vezes nos deparamos no consult¢rio com situa‡ães cl¡nicas, nas quais a falta de harmonia no sorriso encontra-se devido a uma grande exposi‡Æo de tecido gengival. Nestes casos o profissional deve ser capaz de realizar uma an lise detalhada dos componentes est ticos e dinƒmicos do sorriso, em busca de um planejamento e tratamento satisfat¢rios, que poder  englobar diferentes especialidades odontol¢gicas. Para estas situa‡ães, a associa‡Æo periodontia/pr¢tese ‚ uma alternativa vi vel a ser proposta ao paciente, que vem sendo utilizada de maneira positiva em busca de uma condi‡Æo est‚tica e funcional favor vel ao paciente, sem deixar de lado os princ¡pios de preserva‡Æo dos tecidos periodontais e da estrutura dent ria remanescente. Diante disso, o objetivo deste trabalho foi descrever um caso cl¡nico no qual a associa‡Æo periodontia/pr¢tese foi proposta para corre‡Æo de sorriso gengival e vestibulariza‡Æo dent ria. Atrav‚s do resultado cl¡nico obtido e a satisfa‡Æo do paciente, podemos entender que o tratamento multidisciplinar envolvendo a associa‡Æo de t‚cnicas periodontais e prot‚ticas em casos com comprometimento est‚tico gengival e dental, ‚ favor vel para alcan‡ar um resultado positivo.

Sometimes we face clinical situations in which the lack of harmony in the smile is caused by a major exhibition of the gingival tissue. In these cases the professional should be able to perform a detailed analysis of the static and dynamic components of the smile, in search of a satisfactory planning and treatment which may include different dental specialties. For these situations, the association of periodontics/prosthesis is a viable alternative that has been used positively in search of an aesthetic and functional condition that benefits the patient, without leaving aside the preservation of periodontal tissues and of the remaining structure of the tooth. Thus, the aim of this study was to describe a case in which the association between these two areas was proposed to correct gummy smile and dental vestibularization. Clinical results and the satisfaction of the patient indicate that this multidisciplinary treatment combining periodontal and prosthetic techniques is favorable to positive results in cases of compromised smile aesthetics due to excessive gum tissue.