Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 12 de 12
Filtrar
1.
Int J Prosthodont ; 2021 Feb 26.
Artigo em Inglês | MEDLINE | ID: mdl-33651023

RESUMO

PURPOSE: To analyze the current evidence on the impact of surface finishing protocols (such as manual polishing or glazing) on the color stability of in vitro simulated pigmentation of CAD/CAM ceramics. MATERIALS AND METHODS: Five electronic databases were searched on February 12, 2020. In vitro experimental studies were included based on the following strategy: intervention = surface treatment of CAD/CAM ceramics with glazing agents; comparison = surface treatment of CAD/CAM ceramics with manual polishing; and outcomes = color stability. Two reviewers independently assessed the risk of bias. RESULTS: Among 1,390 articles that were screened, 6 in vitro studies were considered for qualitative analysis. Five articles confirmed changes in the color of ceramics when they were immersed in pigmented solutions. One article investigated the color stability of the samples via ultraviolet (UV) aging. Among the 6 studies analyzed, 4 showed clinically acceptable color alteration values represented by ΔE irrespective of the finishing protocol applied (glazing or mechanical polishing). Two articles presented clinically unsatisfactory color variation (ΔE > 3.3 and ΔE > 2.7) following mechanical polishing of a zirconia-reinforced lithium silicate ceramic. Coffee and red wine proved to be the beverages with the greatest potential for ceramic pigmentation. Only 1 article had a high risk of bias. CONCLUSION: For clinicians, most of the studies demonstrated that both manual polishing and glaze application can prevent significant color alterations on CAD/CAM ceramic surfaces. However, due to the relatively limited amount of evidence to support this conclusion, further studies must be conducted.

2.
Int. j. odontostomatol. (Print) ; 14(4): 564-571, dic. 2020. tab, graf
Artigo em Inglês | LILACS-Express | LILACS | ID: biblio-1134539

RESUMO

ABSTRACT: The objective of this study was to evaluate the dental caries experience and its associated factors in homeless persons. A non-probabilistic sample of 176 participants (mean age 37.8 years) was included in this cross-sectional study. Interviews and clinical examinations were performed. Dental caries experience was recorded based on the decayed, missing and filled teeth-index (DMFT). The dental caries experience was observed among 98.9 % of participants (mean DMFT 11.0 ± 6.95). Individuals in the "Over 44 years" age groups (PR = 1.4; 95 % CI = 1.1-1.6) and "30 to 36 years" (PR = 1.2; 95 % CI = 1.0 -1.4) had significantly higher caries experience. Individuals who do not brush or brush only 1x/day have 40 % and 20 % higher caries experience, respectively. Homeless persons had a high experience of dental caries, with significant tooth loss. Individuals in the advanced age groups, lack of income and non-achievement or low frequency of tooth brushing are factors associated with a greater experience of the disease in these individuals.


RESUMEN: El objetivo de este estudio fue evaluar la experiencia de caries dental y sus factores asociados en personas sin hogar. En este estudio transversal se incluyó una muestra no probabilística de 176 participantes (edad media 37,8 años). Se realizaron entrevistas y exámenes clínicos. La experiencia de caries dental se registró en fun- ción del índice de dientes cariados, perdidos y obturados (DMFT). Se observó una experiencia positiva de caries dental entre el 98,9 % de los participantes (DMFT promedio 11,0 ± 6,95). Las personas en los grupos de edad "Ma- yores de 44 años" (PR = 1,4; IC del 95 % = 1,1-1,6) y "30 a 36 años" (PR = 1,2; IC del 95 % = 1,0 -1,4) tuvieron una experiencia de caries significativamente mayor. Las perso- nas que no se cepillan, o se cepillan solamente 1x / día tienen una tasa mayor de caries, de 40 % y 20 % más, respectivamente. En las personas en situación de calle se observó una alta tasa de caries dental, con una pérdida dentaria significativa. Los factores asociados a una mayor tasa de la enfermedad, fueron personas de edad avanzada, la falta de ingreso, no lograr el cepillado, o tener una menor frecuencia de cepillado.

3.
Braz Oral Res ; 34: e057, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32578800

RESUMO

Poor oral hygiene seems to be the norm in children and teenagers with Down Syndrome (DS). Advances in design and types of toothbrushes may improve biofilm control. This randomized, single-blind, crossover clinical trial evaluated the effectiveness of electric toothbrushes regarding mechanical control of biofilm in children and teenagers with DS and their cooperation. Twenty-nine participants with DS, aged 6 to 14 years, used both types of toothbrushes: electric (ET) and manual (MT). The order of use of the different types of toothbrushes was randomly defined, including a 7-day period with each type with 7-day washout period in between. The Turesky-Quigley-Hein biofilm index was used before and after brushing to assess the effectiveness of the technique. Frankl's behavioral scale was used during toothbrushing to assess the participants' cooperation. Paired T-test, Mann Whitney, Chi-square, and Fisher's Exact tests were applied, with a significance level of 5%. The quantity of dental biofilm was significantly reduced after both brushing techniques (p < 0.001). However, no significant difference was found in total biofilm (ET: 0.73 ± 0.36; MT: 0.73 ± 0.34; p = 0.985) or % biofilm reduction (ET: 72.22%; MT: 70.96%; p = 0.762) after brushing between techniques or in % biofilm reduction between toothbrushes of age groups (6 -9 years, p = 0.919; 10-14 years, p = 0.671). Participants showed similar cooperation level with the two types of toothbrush (p = 1.000). The use of electric or manual toothbrush had no effect on the quantity of dental biofilm removed in children and teenagers with DS, nor did it influence their cooperation during the procedure.


Assuntos
Biofilmes , Dispositivos para o Cuidado Bucal Domiciliar , Placa Dentária/prevenção & controle , Síndrome de Down/fisiopatologia , Escovação Dentária/instrumentação , Adolescente , Comportamento do Adolescente , Cuidadores , Criança , Comportamento Infantil , Estudos Cross-Over , Cárie Dentária/prevenção & controle , Desenho de Equipamento , Feminino , Humanos , Masculino , Estatísticas não Paramétricas , Fatores de Tempo , Resultado do Tratamento
4.
Int. j. odontostomatol. (Print) ; 14(1): 60-66, mar. 2020. tab, graf
Artigo em Inglês | LILACS-Express | LILACS | ID: biblio-1056502

RESUMO

ABSTRACT: The objective of the study was to evaluate marginal adaptation of Class II mesial-occlusal-distal (MOD) restorations before and after thermo-mechanical loading and volumetric shrinkage of the bulk-fill vs conventional composite resin. For marginal adaptation assessment, 24 Class II MOD cavities with cervical margins extending 1.0 mm below (distal) and 1.0 mm beyond (mesial) the cement-enamel junction were prepared in extracted human molars. The teeth were filled as follows: Group A - bulk-fill with SureFil SDR flow (first increment, 4 mm; second increment, 2 mm); Group B - bulk-fill with SureFil SDR flow as a base (first increment, 4 mm) and covered with the conventional nanohybrid composite Esthet-X HD (second increment, 2 mm); and Group C - incrementally filled with Esthet-X HD. Marginal adaptation was evaluated by scanning electron microscopy before and after thermomechanical loading (240,000 loading cycles and simultaneous 600 thermal cycles). To evaluate volumetric polymerization shrinkage, a semi-spherical mold was filled with the tested composites and placed in an AccuVol device after light curing. Both before and after loading, marginal adaptation in cervical dentin was superior (p < 0.05) for Groups A and B compared with Group C. In cervical enamel, Group B showed better marginal adaptation than Group C, and Group A presented intermediary results, between Groups B and C. Furthermore, bulk-fill flow resulted in greater shrinkage than Esthet-X HD. A significant improvement of marginal adaptation was observed when bulkfill flow was used instead of conventional composite resin both before and after thermomechanical loading. However, the bulk-fill flow presented higher volumetric polymerization shrinkage than the conventional composite.


RESUMEN: El objetivo de este trabajo consistió en evaluar la adaptación marginal de las restauraciones mesiales-oclusales-distales (MOD) de Clase II antes y después de la carga termo-mecánica y la contracción volumétrica de la carga compuesta de resina "bulk-fill" en comparación con resina convencional. Para la evaluación de adaptación, se prepararon 24 cavidades MOD de Clase II en molares humanos extraídos, los que se restauraron de la siguiente manera: Grupo A: restaurado con resina fluida Bulk-Fill SureFilSDR (primer incremento, 4 mm; segundo incremento, 2 mm); Grupo B: restaurado con resina fluida Bulk-Fill SureFil SDR (primer incremento, 4 mm) y cubierto con resina compuesta nanohíbrida Esthet-X HD (segundo incremento, 2 mm); y Grupo C - rellenado incrementalmente con Esthet-X HD. La adaptación marginal se evaluó mediante microscopía electrónica de barrido antes y después de la carga termomecánica (240.000 ciclos de carga y 600 ciclos térmicos simultáneos). Para evaluar la contracción volumétrica de la polimerización, se llenó un molde semiesférico con los compuestos probados y se colocó en un dispositivo AccuVol después del fotopolimerización. Tanto antes como después de la carga, la adaptación marginal en la dentina cervical fue superior (p <0,05) para los grupos A y B en comparación con el grupo C. En el esmalte cervical, el grupo B mostró una mejor adaptación marginal que el grupo C, y el grupo A presentó resultados intermedios, entre Grupos B y C. Se observó una mejora significativa de la adaptación marginal al utilizar la resina fluida Bulk-Fill en lugar de resina compuesta convencional tanto antes como después de la carga termomecánica. Sin embargo, la resina fluida 'Bulk-Fill' presentó una mayor contracción volumétrica de polimerización que el compuesto convencional.

5.
Braz. oral res. (Online) ; 34: e057, 2020. tab, graf
Artigo em Inglês | LILACS-Express | LILACS, BBO - Odontologia | ID: biblio-1132713

RESUMO

Abstract Poor oral hygiene seems to be the norm in children and teenagers with Down Syndrome (DS). Advances in design and types of toothbrushes may improve biofilm control. This randomized, single-blind, crossover clinical trial evaluated the effectiveness of electric toothbrushes regarding mechanical control of biofilm in children and teenagers with DS and their cooperation. Twenty-nine participants with DS, aged 6 to 14 years, used both types of toothbrushes: electric (ET) and manual (MT). The order of use of the different types of toothbrushes was randomly defined, including a 7-day period with each type with 7-day washout period in between. The Turesky-Quigley-Hein biofilm index was used before and after brushing to assess the effectiveness of the technique. Frankl's behavioral scale was used during toothbrushing to assess the participants' cooperation. Paired T-test, Mann Whitney, Chi-square, and Fisher's Exact tests were applied, with a significance level of 5%. The quantity of dental biofilm was significantly reduced after both brushing techniques (p < 0.001). However, no significant difference was found in total biofilm (ET: 0.73 ± 0.36; MT: 0.73 ± 0.34; p = 0.985) or % biofilm reduction (ET: 72.22%; MT: 70.96%; p = 0.762) after brushing between techniques or in % biofilm reduction between toothbrushes of age groups (6 -9 years, p = 0.919; 10-14 years, p = 0.671). Participants showed similar cooperation level with the two types of toothbrush (p = 1.000). The use of electric or manual toothbrush had no effect on the quantity of dental biofilm removed in children and teenagers with DS, nor did it influence their cooperation during the procedure.

6.
Artigo em Inglês | LILACS-Express | LILACS, BBO - Odontologia | ID: biblio-1091645

RESUMO

Abstract Objective: To measure the heart rate (HR) and the behavior of children and teenagers with Down Syndrome (DS) during the dental appointment. Material and Methods: Two groups (n = 52), of both genders, aged 2-14 years, matched by age group were formed: study group (SG) - individuals with DS and control group (CG) - normotypical school children. The participants were submitted to clinical examination and prophylaxis. An oximeter was used to measure the HR at five moments of the dental consultation: before entering the practice room (T0), when sitting in the dental chair (T1), during the clinical examination (T2), during prophylaxis (T3) and immediately after prophylaxis (T4). Behavior, classified according to the Frankl Scale, was observed at T3. Mann Whitney, Kruskal-Wallis, Dunn and Pearson's Chi-square tests were used to analyze and compare variables (significance level at 5%). Results: In SG, a significant difference in HR was observed according to the moment of dental appointment (p<0.001 SG; 0.3385 CG). The highest HR value in SG was observed at T3 (median 110.00; IIQ 96.00-124.00), the only moment significantly different (p<0.001) from HR values for CG. A difference in behavior between groups (p<0.001) was also observed. Conclusion: HR of individuals with DS varied throughout the dental appointment, and they also had a higher prevalence of uncooperative behavior.

7.
Artigo em Inglês | LILACS-Express | LILACS, BBO - Odontologia | ID: biblio-1056889

RESUMO

Abstract Objective: To measure the heart rate (HR) and the behavior of children and teenagers with Down Syndrome (DS) during the dental appointment. Material and Methods: Two groups (n = 52), of both genders, aged 2-14 years, matched by age group were formed: study group (SG) - individuals with DS and control group (CG) - normotypical school children. The participants were submitted to clinical examination and prophylaxis. An oximeter was used to measure the HR at five moments of the dental consultation: before entering the practice room (T0), when sitting in the dental chair (T1), during the clinical examination (T2), during prophylaxis (T3) and immediately after prophylaxis (T4). Behavior, classified according to the Frankl Scale, was observed at T3. Mann Whitney, Kruskal-Wallis, Dunn and Pearson's Chi-square tests were used to analyze and compare variables (significance level at 5%). Results: In SG, a significant difference in HR was observed according to the moment of dental appointment (p<0.001 SG; 0.3385 CG). The highest HR value in SG was observed at T3 (median 110.00; IIQ 96.00-124.00), the only moment significantly different (p<0.001) from HR values for CG. A difference in behavior between groups (p<0.001) was also observed. Conclusion: HR of individuals with DS varied throughout the dental appointment, and they also had a higher prevalence of uncooperative behavior.


Assuntos
Humanos , Masculino , Feminino , Pré-Escolar , Criança , Adolescente , Sintomas Comportamentais/psicologia , Estudos Transversais/métodos , Síndrome de Down , Consultórios Odontológicos , Frequência Cardíaca , Monitorização Fisiológica , Agendamento de Consultas , Encaminhamento e Consulta , Brasil/epidemiologia , Distribuição de Qui-Quadrado , Estudos Transversais , Estatísticas não Paramétricas
8.
Rev. Salusvita (Online) ; 38(3): 781-794, 2019.
Artigo em Português | LILACS | ID: biblio-1052120

RESUMO

Introdução: Dentes permanentes imaturos que evoluem para necrose pulpar representam um desafio para tratamento endodôntico. A endodontia regenerativa e técnicas de revascularização pulpar surgem como um campo dinâmico e potencialmente ideal para terapia clínica em dentes com desenvolvimento radicular incompleto. Objetivo: Revisar a literatura sobre as técnicas de revascularização pulpar no tratamento de dentes com ausência de vitalidade pulpar com ápice radicular imaturo. Métodos: Os descritores "pulp revascularization", "pulp necrosis", "immature permanent tooth", "revascularization", "revitalization", "dental pulp", "regeneration" foram utilizados para obtenção de artigos em língua inglesa, que apresentassem conteúdo disponibilizado na íntegra e publicados nos últimos 15 anos. Foram excluídos os trabalhos de relatos de caso e/ou séries de casos. Conclusão: Artigos revisados apresentaram uma heterogeneidade de resultados quanto à efetividade da técnica de revascularização pulpar, visto que os critérios estabelecidos para determinação do sucesso variavam entre os autores. O material mais comumente utilizado na técnica empregada consiste no Agregado Trióxido Mineral (MTA) em consistência pastosa aplicada sobre coágulo sanguíneo com formação induzida no interior do canal. Foi observada escassez de estudos laboratoriais e clínicos sobre as técnicas e materiais em revascularização pulpar, que suportem sua indicação, o que representa uma lacuna em potencial na literatura e requer cautela na indicação desta técnica.


Introduction: Immature permanent teeth that evolve to pulp necrosis represent a challenge for endodontic treatment. Regenerative endodontics and pulp revascularization techniques appear as a dynamic and potentially ideal field for clinical therapy in teeth with incomplete root development. Objective: To review the literature on pulpal revascularization techniques in the treatment of teeth with absence of pulp vitality with immature root apex. Methods: The descriptors "pulp revascularization", "pulp necrosis", "immature permanent tooth", "revascularization", "revitalization", "dental pulp" and "regeneration" were used to obtain articles in English that presented content available in full and published in the last 15 years. Works of case reports and/or series of cases were excluded. Conclusion: Reviewed articles presented a heterogeneity of results regarding the effectiveness of the pulp revascularization technique, since the established criteria for determining success varied among the authors. The material most commonly used in the technique used consists of the Mineral Trioxide Aggregate (MTA) in paste consistency applied on blood clot with induced formation inside the canal. A shortage of laboratory and clinical studies on pulp revascularization techniques and materials that support its indication has been observed, which represents a potential gap in the literature and requires caution in the indication of this technique.


Assuntos
Necrose da Polpa Dentária , Polpa Dentária
9.
J. health sci. (Londrina) ; 20(1)30/05/2018.
Artigo em Inglês | LILACS-Express | LILACS | ID: biblio-909233

RESUMO

Transtorno do Espectro Autista (TEA) é um espectro de transtornos do desenvolvimento neurológico que afeta o desenvolvimento e funcionamento do cérebro, por mecanismos ainda desconhecidos. A prevalência estimada para TEA é de um a dois para cada mil nascidos vivos e estes indivíduos apresentam limitações físicas e psicológicas que incluem atrasos no desenvolvimento da linguagem, dificuldades de comunicação e interação social, comportamentos restritos e repetitivos e muitos podem ter deficiência intelectual. Supõe-se que a saúde bucal de indivíduos com TEA é precária, em parte por suas limitações e pouca destreza manual para realização de cuidados em saúde, bem como pelo maior consumo de alimentos com adição de açúcar e retenção prolongada do bolo alimentar na cavidade bucal, que são observados nesta população. O objetivo deste artigo é apresentar uma revisão da literatura sobre as condições de saúde bucal de indivíduos autistas. Para o desenvolvimento da presente revisão de literatura foram realizadas buscas nas bases de dados MedLine/PubMed, Scopus e SciELO. Os artigos foram selecionados segundo descritores relacionados com saúde bucal e transtorno do espectro autista. Menor prevalência de cárie em indivíduos com TEA é relatada na maioria dos estudos, porém, observa-se a necessidade de estudos longitudinais que possam avaliar incidência e fatores associados com cárie dentária nesta população. Estudos sugerem que indivíduos autistas tenham pior condição periodontal, havendo uma lacuna sobre as condições associadas a essa maior prevalência. Embora com um número limitado de estudos, indivíduos autistas parecem não serem mais propensos a traumatismos dentários. (AU).


Autism Spectrum Disorder (ASD) is a spectrum of neurodevelopmental disorders that affect the brain development and functioning, by still unknown mechanisms. The estimated prevalence for ASD is one to two per thousand live births and these individuals present physical and psychological limitations that include delays in language development, difficulties in social interaction, communication and restricted and repetitive behaviors, and many may have intellectual disabilities. It is assumed that the oral health of ASD individuals is precarious, in part because of their limitations and little manual dexterity to perform health care, as well as the high consumption of foods with added sugar and prolonged retention of the food bolus in the oral cavity, which are observed in this population. The aim of this article is to present a review of the literature about the oral health conditions of autistic individuals. For the development of the present literature review, the MedLine / PubMed, Scopus and SciELO databases were searched. The articles were selected according to descriptors related to oral health and autism spectrum disorder. Lower caries prevalence in ASD individuals is reported in most of the studies, however, it is observed the need for longitudinal studies that can assess incidence and factors associated with dental caries in this population. Studies suggest that autistic individuals have worse periodontal conditions, and there is a lack of conditions associated with this higher prevalence. Despite the limited number of studies, autistic individuals do not appear to be more prone to dental trauma. (AU).

10.
Rev. Salusvita (Online) ; 36(3): 677-693, 2017.
Artigo em Português | LILACS | ID: biblio-1021209

RESUMO

Introdução: os cirurgiões-dentistas frequentemente empregam antimicrobianos em sua prática clínica a fim de controlar infecções bucais. O emprego indiscriminado de antimicrobianos tem desencadeado resistências bacterianas. Objetivo: determinar o perfil dos cirurgiões-dentistas de Teresina em relação à percepção e conhecimento sobre resistência bacteriana a antimicrobianos e o uso racional destes medicamentos em sua prática clínica. Material e métodos: questionários semiestruturados aplicados aos profissionais com atuação na cidade de Teresina. Os profissionais a participarem foram selecionados aleatoriamente através de uma lista disponibilizada pelo Conselho Regional de Odontologia do Piauí. Foram obtidos 90 questionários totalmente respondidos, que constituiu a amostra final. Resultados: a maioria dos participantes (78,9%) nunca procurou realizar curso de atualização em microbiologia e/ou farmacologia, e relatam que buscam atualizar seus conhecimentos através, principalmente, de artigos científicos (51,1%) e congressos (37,7%). Quanto à percepção dos processos que podem desencadear em resistência bacteriana a antimicrobianos, 74,2% dos participantes consideram que a sua prática clínica pode ocasionar processos adversos e 94,4% consideram que o emprego de posologia correta é o principal meio de prevenir tais processos. Quanto às situações que mais prescreviam antimicrobianos, os cirurgiões-dentistas citaram processos inflamatórios com envolvimento sistêmico (77,7%), procedimentos invasivos em pacientes portadores de válvula cardíaca (74,4%), abscessos dentoalveolares agudos (68,9%), tratamento de pericoronarite (50%), profilaxia antibiótica diante extração de terceiros molares (47,8%), dentre outras. Conclusões: os participantes demonstraram deficiência em conhecimentos sobre os mecanismos de resistência bacteriana e uso racional de antimicrobianos, prescrevendo-os em diversas situações desnecessárias, sugerindo o abuso no uso dos mesmos.


Introduction: dentists often employ antimicrobial agents in their clinical practice in order to control infections of the oral cavity. The indiscriminate use of antimicrobials has triggered resistance bacterial. Objective: to determine the profile of surgeon dentists of Teresina in relation to perception and knowledge about bacterial resistance to antimicrobials and the rational use of these medicines in their clinical practice. Material and methods: questionnaires (semistructured) applied to professionals working in the city of Teresina. Professionals to participate were selected randomly through a list provided by the Regional Council of Dentistry of Piauí. Data was obtained out of 90 questionnaires fully answered, which constituted the final sample. Results: the majority of the respondents (78.9%) never sought to carry out refresher course in microbiology and/or pharmacology, and report that wish to update their knowledge through mainly scientific articles (51.1%) and congress (37,7%). As to the perception of the processes that can trigger in bacterial resistance to antimicrobials, with 74.2% of the participants consider that their clinical practice may result in processes adverse and 94.4% consider that the job of dosage correct is the primary means of preventing such processes. As to the situations that the more it is prescribed antimicrobials, dentists cited the inflammatory processes with systemic involvement (77.7%), invasive procedures in patients with heart valve (74.4%), abscesses dentoalveolares acute (68.9%), the treatment of pericoronarite (50%), antibiotic prophylaxis before extraction of third molars (47,8%), among others. Conclusions: participants showed deficiency in knowledge about the mechanisms of bacterial resistance and rational use of antimicrobial agents, prescribing in some unnecessary situations, suggesting the abuse in the use of the same.


Assuntos
Humanos , Resistência Microbiana a Medicamentos , Prescrições de Medicamentos , Odontólogos
11.
Rev. Salusvita (Online) ; 35(3): 475-489, 2016. tab, ilus
Artigo em Português | LILACS | ID: biblio-833041

RESUMO

Introdução: devido à insatisfação relatada pelos pacientes com a coloração dos dentes e a busca por procedimentos que envolvam estética do sorriso associado com o desenvolvimento de técnicas e materiais amplamente propagados na mídia, as empresas responderam com a oferta no mercado de uma variedade de opções de dentifrícios que propõem efeito clareador prático e rápido. Objetivo: avaliar a efetividade de dentífricos clareadores em diferentes formas de apresentação sobre esmalte de dentes bovinos. Material e Métodos: quinze dentes bovinos foram imersos diariamente por um período de 1 hora em refrigerante a base de cola e em seguida foram divididos equitativamente em três grupos, onde cada grupo foi escovado com um dentifrício especifico por 2 minutos. O grupo A foi escovado com dentifrício Colgate Luminous White (Colgate ­ Palmolive), em forma de pasta, o grupo B com dentifrício Closeup Diamond Attraction Delicate White (Unilever) em forma de gel e o grupo C com dentifrício Oral-B Complete (Procter & Gamble) em forma de pasta. Resultados: as diferentes formas de apresentação estudadas foram efetivas na remoção das manchas extrínsecas em dentes bovinos; O dentifrício Colgate Luminous White na forma de apresentação pasta clareador apresentou-se mais efetivo na remoção das manchas extrínsecas; O dentifrício Oral ­ B Complete na forma de pasta foi efetivo, porém em menor intensidade em comparação aos dentifrícios clareadores estudados. Conclusão: as diferentes formas de apresentação dos dentifrícios utilizados foram efetivas na remoção de manchas extrínsecas.


Introduction: due to dissatisfaction reported by patients with tooth staining and the search for procedures involving smile aesthetics associated with the development of techniques and materials widespread on social medias, companies responded by offering to the market a variety of toothpaste choices in order to provide practical and fast bleaching effects. However, these dentifrices appear to have a limited efficiency since they only contain abrasives for the removing of extrinsic tooth stain. Objective: his research aimed to assess the effectiveness of different forms of presentation of bleaching agents on bovine teeth enamel. Methods: daily, fifteen bovine teeth were immersed in cola soft drink for a period of 1 hour and then they were divided into three groups (each group containing five bovine teeth). Each group was brushed with a specific dentifrice for 2 minutes: the group A was brushed with Colgate Luminous White in paste form (Colgate ­ Palmolive); the Group B with Diamond Closeup Attraction Delicate White in gel form (Unilever), and the group C with Oral-B complete in paste form (Procter & Gamble). Results: color change was observed through photographs and analysis of the interpreted samples based on the theoretical background. Conclusion: the dentifrices used were able to remove extrinsic stains and the bleaching dentifrice Colgate Luminous White was more effective as a result in this connection.


Assuntos
Animais , Bovinos , Cremes Dentais/análise , Cremes Dentais/efeitos adversos , Clareadores Dentários , Efetividade , Técnicas In Vitro/veterinária
12.
Hepat Mon ; 13(10): e13670, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-24348639

RESUMO

BACKGROUND: Viral hepatitis B (VHB) is an occupational risk for dentists. It is necessary that dental students start clinical practice immunized with the vaccine, response monitored and informed about the means of transmission of the disease. Rarely, there are studies, which evaluate concomitantly knowledge of these academics and their vaccine situation. OBJECTIVES: To evaluate the knowledge about Hepatitis B, the vaccine situation and the immunization status of dental students and to investigate the probable correlation between the status of immunization, vaccination membership and adherence to the test of seroconversion and associated factors. PATIENTS AND METHODS: 189 students from the dentistry course at the Federal University of Piaui (UFPI) who attended from the 3rd to 9th period were invited to participate in the research. Their knowledge about HBV, attitude regarding protection and their vaccine situation were assessed through a self-administered form. Antibodies against surface antigens of Hepatitis B virus (Anti-HBs) and against the antigens of the virus nucleous of Hepatitis B (Anti-HBc total) were measured qualitatively using the enzyme-linked immunosorbent assay (ELISA). RESULTS: Of the 179 students surveyed, 58.1% knew about the degree of virulence of the Hepatitis B virus (HBV). As to the means of transmission, 98.3% considered blood transmission, 82.6% plates and cutlery, 15.6% cough and 12.3% vertical transmission. Most students (87.4%) knew that they should take 3 doses of the vaccine and 62.2% completed the immunization schedule. A minority of students (48.6%) knew the about the Anti-HBs test and 5.6% took the test. Among the students who reported having taken three doses of the vaccine, 12.5% were not seroconverted. There was no significant correlation between the variables. CONCLUSIONS: Dental academics were unsure about the means of infection and prevention against HBV. Many of them had not completed the immunization scheme and did not have the test of seroconversion. The serological analysis revealed unprotection, even after students completed the vaccination schedule.

SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA
...