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1.
Prim Dent J ; 9(3): 34-39, 2020 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-32940586

RESUMO

Improvements in oral health including increased retention of natural teeth have given rise to a partially dentate older population. Replacement of missing natural teeth is important to improve function, aesthetics and quality of life for this patient group. A variety of options are available to replace missing teeth in partially dentate older adults, including fixed, removable and implant retained prostheses. This article will discuss the provision of removable partial dentures including treatment planning and denture design. When planning removable partial dentures, careful attention must be paid to stabilising the patient prior to delivering any prosthesis. Partial dentures should be designed to minimise the potential for plaque accumulation with carefully designed metal based frameworks. Acrylic resin can also be utilised with attention to detail to minimise the risk of damage to delicate supporting tissues. Removable dentures have the advantage that they can be readily added to in the event of further tooth loss which may be particularly relevant for older adults. Partial dentures which optimise support, retention and stability can function very successfully and significantly improve patients' oral health related quality of life.


Assuntos
Prótese Parcial Removível , Boca Edêntula , Perda de Dente , Idoso , Prótese Parcial , Humanos , Qualidade de Vida
2.
Hua Xi Kou Qiang Yi Xue Za Zhi ; 38(4): 475-478, 2020 Aug 01.
Artigo em Chinês | MEDLINE | ID: mdl-32865372

RESUMO

This study aims to apply a new expert system to design removable partial denture (RPD) framework. The RPD design is completed in three steps, namely, "selecting missing teeth", "selecting abutment condition", and "selecting personalized clasp". The system can help auxiliary dentists develop personalized treatment plans to reduce their clinical workload. It can also generate a dental preparation guideline for clinical preparation, which can prevent tooth preparation mistakes. By generating the standard electronic drawings of the framework design, the system can reduce the inconvenience caused by manual drawing, thereby facilitating dentist-technician communication and reducing the rate of remade.


Assuntos
Prótese Parcial Removível , Dente , Dente Suporte , Planejamento de Dentadura , Sistemas Especialistas
3.
Wiad Lek ; 73(4): 751-754, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32731710

RESUMO

OBJECTIVE: The aim: Mathematical modeling and peculiarities of the proposed telescopic connection design. PATIENTS AND METHODS: Materials and methods: For the implementation of the mathematical model of telescopic joints of removable dentures, elements of the external and internal parts of such a design having the same nominal angles of cones, or identical nominal cones of these parts are considered. RESULTS: Results: Dependence of retention force is determined from various parameters, equating it with equilibrium values of compressive dynamic force and the total force of friction. Connection is set between the separate geometricalparameters of elements of telescopic cone connection andoperating between them various internal and external efforts.At creation of different individual modifications of theseconnections, gives possibility, attracting the values ofcorresponding geometrical or po wer elements, that isrationed or accepted on results measuring or scanouts, toexpect other parameters that is determined in dependenceon preliminary appointed. CONCLUSION: Conclusions: The given mathematical dependences can be represented as algorithms of calculation and realized by computer programs.


Assuntos
Músculo Esquelético , Prótese Parcial Removível , Fricção
4.
Int J Comput Dent ; 23(3): 281-292, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32789315

RESUMO

For decades, double crowns in different variations have proven to be reliable attachments in removable prosthetics. Supported by teeth and implants, they provide proper retention, a considerable degree of chewing comfort, and satisfying esthetics. A wide range of applications, optimal oral hygiene capabilities, and almost unlimited expandability are just some of the advantages of double crown anchored dentures. Among other things, abutment tooth loss is a frequent complication. If an abutment tooth is lost, the secondary crown is usually filled with resin and the denture can continue to be used. However, since the loss of one or more abutment teeth changes biomechanical load ratios, a decline in stability and comfort is likely to occur as well as overloading of the remaining abutment teeth. The concept presented in this article provides for the application of computer-assisted technologies that enable the preservation of the denture according to its original design. For this purpose, a lost or hopelessly decayed tooth is replaced with an implant using digital preplanning and guided implant surgery. The original primary crown is then reattached in its exact former position applying a CAD/CAM-fabricated meso-abutment. In effect, the number of abutment teeth can be preserved, the functionality of the denture maintained with reasonable effort, and further damage prevented.


Assuntos
Dente Suporte , Prótese Parcial Removível , Desenho Assistido por Computador , Coroas , Prótese Dentária Fixada por Implante , Humanos , Fluxo de Trabalho
5.
Int J Prosthodont ; 33(4): 386-392, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32639698

RESUMO

PURPOSE: To investigate differences in the performance of polyether ether ketone (PEEK) frameworks vs traditional metal frameworks for removable partial dentures (RPDs) in terms of OHRQoL, patient preference, periodontal indices, and denture satistfaction. MATERIALS AND METHODS: Twenty-six participants were recruited to a randomized controlled crossover trial and were provided with either PEEK or cobalt-chromium (Co-Cr) RPDs. After 4 weeks, the participants were provided with the other RPD. After both 4-week testing periods, the participants chose their preferred RPD and were followed up again at 6 months and 1 year. The primary outcome measure was effect on OHIP-20 score, which was compared among patients using repeated measures ANOVA. Secondary outcomes were participant preference compared using chi-square analysis; Plaque Index and Gingival Bleeding Index (PI and GBI, respectively) compared using repeated measures ANOVA; and McGill Denture Satisfaction Questionnaire (MDSQ) score compared between the two 4-week follow-ups using paired-samples t test. RESULTS: Both Co-Cr and PEEK frameworks resulted in a significant improvement in OHIP-20 score (P < .001), but the material was not a significant factor in changes over 1 year (P = .87). There were no statistically significant differences in participant preference at 1 year (P = .491), nor between RPD materials in their effect on GBI (P = .476), PI (P = .967), or MDSQ (P = .368). CONCLUSION: Both Co-Cr and PEEK RPDs improved OHRQoL to a degree greater than the minimum clinically important difference at 4 weeks, 6 months, and 1 year compared to baseline. No significant preference or improved denture satisfaction score was seen for either material. PEEK frameworks seem to be associated with similar degrees of periodontal effects as Co-Cr frameworks.


Assuntos
Cromo , Cobalto , Prótese Parcial Removível , Estudos Cross-Over , Éter , Humanos , Cetonas , Projetos Piloto
6.
Int J Oral Maxillofac Implants ; 35(4): 816-823, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32724936

RESUMO

PURPOSE: The aim of this preliminary study was to evaluate maxillary bone resorption with conventional dentures and implant-supported prostheses opposed by distal-extension removable partial dentures (RPDs). MATERIALS AND METHODS: Fifteen patients (seven women and eight men) with totally edentulous maxillary ridges and partially edentulous mandibular ridges (Class I Kennedy classification) received maxillary fixed prostheses on four implants and mandibular distal-extension RPDs (study group). The control group consisted of 15 patients who received conventional maxillary dentures and distal-extension mandibular RPDs without any implant treatment but were matched to the study group and acted as a historical group. Evaluation of vertical maxillary bone resorption for both groups was made at the time of prosthesis insertion (T0) and 5 years later (T2) using the proportional area measurements made on digital panoramic radiographs for anterior and posterior areas. RESULTS: The control group showed significantly higher vertical bone loss than the test group (P < .001). The control group had 0.270 higher maxillary bone loss than the test group. For both groups, anterior maxillary areas showed significantly higher bone loss than posterior areas (P < .003). Anterior maxillary areas had 0.122 higher bone loss compared with posterior areas. Women had 0.035 higher maxillary bone loss compared with men. CONCLUSION: Within the limitations of this study, implant-supported fixed prostheses for the edentulous maxilla opposed by remaining mandibular anterior teeth reduce maxillary anterior and posterior alveolar bone loss compared with conventional dentures. However, they do not prevent maxillary bone loss.


Assuntos
Perda do Osso Alveolar , Implantes Dentários , Prótese Parcial Removível , Prótese Dentária Fixada por Implante , Feminino , Humanos , Masculino , Maxila , Estudos Retrospectivos
7.
J Am Dent Assoc ; 151(9): 684-690, 2020 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-32711806

RESUMO

BACKGROUND: Microstomia is a principal clinical symptom in patients with scleroderma. It is characterized by an abnormally small mouth opening, which makes traditional prosthetic rehabilitation difficult. METHODS: First, the primary impression and jaw relation record were acquired using an intraoral scanning technique and the primary diagnostic dentures were fabricated using 3-dimensional printing (3DP). The definitive impression and jaw relation were obtained and digitally scanned. The second diagnostic denture was also made to confirm the esthetic and occlusal effects. Next, the adjusted dentition parts were scanned and milled from a cross-linked polymethyl methacrylate disk. In addition, the titanium alloy frameworks were also fabricated using 3DP. With flasking, the milled dentition parts were inserted and the definitive dentures were finally fabricated and delivered to the patient. RESULTS: The authors constructed the definitive removable partial dentures successfully using the digital methods of intraoral scanning, computer-aided design, and 3DP. CONCLUSIONS AND PRACTICAL IMPLICATIONS: These digital methods provide an alternative option for prosthetic rehabilitation in scleroderma patients with severe microstomia.


Assuntos
Prótese Parcial Removível , Microstomia , Desenho Assistido por Computador , Técnica de Moldagem Odontológica , Planejamento de Dentadura , Humanos
8.
Prim Dent J ; 9(1): 49-55, 2020 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-32519609

RESUMO

AIMS: To establish the prevalence of jaw registrations being taken for removable partial dentures (RPDs) in primary dental NHS practices. METHOD: 271 RPDs made by 16 general dental practitioners across four NHS dental practices were evaluated prospectively. The number of teeth replaced, whether jaw registration was undertaken, and the number of denture adjustment appointments were recorded. Telephone interviews with dental technicians were held to establish their preferred jaw registrations material. MAIN FINDINGS: Jaw registrations were not carried out in 27% (n=72) of RPD. When jaw registration was recorded, 14% (n=28) required a further denture adjustment appointment. 64% (n=46) of dentures where jaw registration was not recorded required at least one further denture adjustment appointment. Dental technicians unanimously preferred a squash-bite wax block, with centre and canine positions marked and cast models secured with elastic bands. CONCLUSION: Overall, recording a jaw registration reduced the number of denture adjustment appointments required.


Assuntos
Prótese Parcial Removível , Odontólogos , Planejamento de Dentadura , Humanos , Papel Profissional , Medicina Estatal
9.
Shanghai Kou Qiang Yi Xue ; 29(1): 85-88, 2020 Feb.
Artigo em Chinês | MEDLINE | ID: mdl-32524128

RESUMO

PURPOSE: To investigate the category and prevalence rate of denture-related oral mucosal lesions (DML) in 185 patients with removable denture and analyze the influencing factors. METHODS: A total of 185 patients with removable denture who visited the department of stomatology of our hospital from October 2015 to June 2018 were investigated by questionnaire. DML types and locations were recorded in detail, and patients were followed up after treatment. Based on the data of this study, the differences of DML reports in other regions of China were analyzed by comparing the results searched from databases. SPSS 17.0 software package was used for statistical analysis. RESULTS: In this study, the DML prevalence rate was 42.7%, significantly higher in male patients than in female patients (54.17% vs 35.40%, P<0.05). DML was more common in complete denture wearers than that in partial denture wearers (66.67% vs 31.20%, P<0.05). The categories of DML were as followed (prevalence rate from high to low): denture stomatitis (54.43%), traumatic ulcer (34.18%), inflammatory hyperplasia (6.33%), and angular cheilitis (5.06%). CONCLUSIONS: DML is affected by multiple factors. Among them, denture related factors include denture type, denture wearing time, denture lasting time and cleaning method. DML is more influenced by the type of denture than the wearing time. Gender, ethnicity and systemic diseases may affect the prevalence of DML, but further studies are needed. The results of domestic studies in various regions cannot objectively reflect the current prevalence rate of DML, thus a multi-center epidemiological investigation is needed.


Assuntos
Prótese Parcial Removível , Doenças da Boca , Estomatite sob Prótese , China , Prótese Total , Prótese Parcial , Feminino , Humanos , Masculino
10.
J Prosthodont ; 29(6): 542-545, 2020 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-32394458

RESUMO

Digital workflow expedites the procedure of retrofitting a surveyed crown against an existing removable partial denture (RPD). This article describes a simple and straightforward technique of digital workflow where an existing RPD is scanned as an antagonist to design the rest seat, guide plane, and height of contour of a surveyed crown.


Assuntos
Prótese Parcial Removível , Desenho Assistido por Computador , Coroas , Fluxo de Trabalho
11.
Indian J Dent Res ; 31(2): 323-325, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32436917

RESUMO

A "quack" is defined as "a fraudulent or ignorant pretender to medical skill or a person who pretends, professionally or publicly, to have skill, knowledge, or qualifications he or she does not possess." A number of dental quacks are practicing roadside, making money by doing unethical and unhygienic practice, eventually, hampering the patient's oral and general health. Common quackery practices carried out in India are filling of teeth with acrylic resin, fixing the removable partial denture as fixed partial denture using wires and self-curing acrylic resin, using suction disc on the palatal surface of complete denture to improve retention, etc., leading to a number of unfortunate consequences. In this study, we present a case series of mal-treatments performed by different quacks in Dhule district of Maharashtra (India).


Assuntos
Prótese Parcial Removível , Resinas Acrílicas , Prótese Total , Prótese Parcial Fixa , Feminino , Humanos , Índia , Masculino
12.
Stomatologiia (Mosk) ; 99(2): 55-60, 2020.
Artigo em Russo | MEDLINE | ID: mdl-32441077

RESUMO

The aim of the study was to assess the state of the mucous membrane of the prosthetic bed, the features of fixation of removable dentures taking into account the sex and age of the patients, as well as the determination of the feasibility of using dentures fixing agents. MATERIALS AND METHODS: The clinical and sociological study was conducted involving 283 (130 men and 153 women) patients aged from 45 to 92 years. All patients had acrylic removable dentures on one or both jaws. If patients had complaints about insufficient fixation of the denture, they were recommended to use a prosthesis fixing cream for daily use. After 14 days, patients were examined again for the dynamics of complaints, as well as changes in the mucous membrane of the prosthetic bed. RESULTS: Regardless of gender and age group patients using partial and complete dentures rarely (in 4.3% of cases) used dentures fixing agents, although 40.8% had poor fixation and (or) stabilization of removable acrylic partial and full dentures, and in 51.9% of cases inflammatory changes of the mucous membrane of the prosthetic bed were detected. Correction of removable dentures, as well as daily use of a denture fixation cream, made it possible within two weeks to reduce by 72.5% of patients complaints about poor fixation and (or) stabilization of removable dentures, as well as to eliminate existing inflammatory changes in 86.4% of patients.


Assuntos
Prótese Parcial Removível , Mucosa Bucal , Idoso , Idoso de 80 Anos ou mais , Prótese Total , Prótese Parcial , Feminino , Humanos , Masculino , Pessoa de Meia-Idade
13.
J Contemp Dent Pract ; 21(1): 41-46, 2020 Jan 01.
Artigo em Inglês | MEDLINE | ID: mdl-32381799

RESUMO

AIM: Undercuts on abutment teeth (AT) should be identified and quantified to establish the exact location of the active tip of the retentive arm of the direct retainer. The aim of this study was to locate and evaluate tissue and tooth undercut areas in various Kennedy's classes and to assess the correlation, if any, between Kennedy's classes and the location and depth of undercuts. MATERIALS AND METHODS: One hundred and seven patients' casts, with designated AT and edentulous areas (EAs), were surveyed. The undercuts on AT and EAs were measured using undercut gauges. Statistical analysis was performed. RESULTS: The median depth of the undercut was maximum on distal the surface of mandibular AT in a Kennedy's class III edentulous situation. No significant difference was found between the amount of tissue undercuts measured on the EA in each of the Kennedy's classes in the maxillary and mandibular arches. CONCLUSION: No significant difference was found between the amounts of undercut measured on AT and the EA in each of the Kennedy's classes in the maxillary and mandibular arches. No correlation was found between Kennedy's classes and the location and depth of undercuts. CLINICAL SIGNIFICANCE: The results of our study reinforce that the diagnosis and selection of ideal abutments should be stressed while planning for a removable dental prosthesis (RDP). In the majority of the cases, the anticipated design of the direct retainer can be applied, though one cannot overlook the need for proper diagnosis and survey.


Assuntos
Prótese Parcial Removível , Dente , Estudos Transversais , Retenção de Dentadura , Humanos , Estudos Retrospectivos
14.
J Contemp Dent Pract ; 21(2): 215-218, 2020 Feb 01.
Artigo em Inglês | MEDLINE | ID: mdl-32381831

RESUMO

AIM: This case report describes about a distinctive custom-made attachment on the abutment teeth to improve the retention and stability of the removable partial denture (RPD). It also throws light on the cost-effective method for altering the abutment teeth with the aid of the crowns and custom-made attachments. BACKGROUND: Achieving retention in Kennedy's class I bilateral edentulism usually affects the abutment teeth's periodontal health and eventually the retention is compromised. Distal extension edentulism also affects patient's masticatory efficiency. The rehabilitation of a patient with the long span Kennedy's class I condition complicates the problem because of the unavailability of enough abutments to support the prosthesis. Conventional removable prosthesis with clasps and cantilever fixed partial prosthesis are not advisable in this situation for the same reason. CASE DESCRIPTION: A case with Kennedy's class I modification 1 partially edentulous arch with 1st and 2nd molars missing along with central incisors was rehabilitated with an inexpensive custom attachment using die pin and sleeve for giving a fixed prosthesis on abutment teeth and removable prosthesis with missing teeth. CONCLUSION: This technique has advantages of retention better than conventional RPDs, protection of abutment health by restoring it with crown, easy to place and remove and very cost-effective. CLINICAL SIGNIFICANCE: The entire technique demands less skill compared to semi precision and precision attachments.


Assuntos
Prótese Parcial Removível , Boca Edêntula , Análise Custo-Benefício , Coroas , Humanos
15.
J Oral Rehabil ; 47(8): 998-1006, 2020 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-32449970

RESUMO

BACKGROUND: Denture use for recovery of major tooth loss can reduce the need for care, and thus, it is important for dentists to identify the types of patients who use removable dentures. OBJECTIVE: To identify factors associated with removable denture use in independent older Japanese people. METHODS: This cross-sectional study investigated the oral condition; demographics; lifestyle; dental visit behaviour; and higher-level functional capacity, as assessed using the Tokyo Metropolitan Institute of Gerontology index of competence (TMIG index), of independent older people aged 65-74 years. Participants were divided into four groups based on sex and condition of the posterior occluding pairs (POPs). Multivariate-adjusted logistic regression analyses were performed for each group, with denture use or non-use as the dependent variable and the other items as independent variables. RESULTS: Denture use or non-use was significantly associated with only dental consultation behaviour (regular dental visits and time since the last dental visit) in all groups. Subsequent analyses excluding dental consultation behaviour demonstrated that denture use or non-use was significantly associated with educational background in female participants with decreased POPs, with the type of household in male participants with lost POPs and with the TMIG index (social role) in female participants with lost POPs. CONCLUSIONS: Denture use was associated with dental consultation behaviour. We revealed factors related to denture use or non-use in females with decreased POPs and both males and females with lost POPs.


Assuntos
Prótese Parcial Removível , Perda de Dente , Idoso , Idoso de 80 Anos ou mais , Estudos Transversais , Dentaduras , Feminino , Humanos , Masculino
16.
Int J Periodontics Restorative Dent ; 40(3): e111-e118, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32233191

RESUMO

Agenesis of the permanent dentition is rare. This report describes a 20-year-old woman with 19 deciduous teeth, a single permanent mandibular premolar, and other physical traits associated with ectodermal dysplasia. The patient demonstrated esthetic parameters associated with maxillomandibular alveolar insufficiency, and her chief complaints were directed toward esthetics and the potential impact of restorative choices on function. Three typical options for restoration include overdentures, removable partial dentures, or implant-supported prostheses replacing her natural dentition. This report illustrates a fully integrated digital approach to treatment planning, the fabrication of a computer-aided design/computer-assisted manufacture surgical guide and provisional restoration, guided implant placement, and definitive restoration using monolithic zirconia implant-supported fixed dental prostheses. The lifelong management of this rehabilitation is an acknowledged challenge.


Assuntos
Anodontia , Prótese Parcial Removível , Adulto , Prótese Dentária Fixada por Implante , Dentição Permanente , Revestimento de Dentadura , Feminino , Humanos , Adulto Jovem
17.
J Prosthodont ; 29(5): 378-386, 2020 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-32227689

RESUMO

PURPOSE: Metal removable partial dentures (RPDs) are often considered long-term treatment options for partially edentulous patients, while acrylic resin RPDs are considered interim treatments. The aim of this review was to compare metal and acrylic resin RPDs regarding patient-reported outcomes for partially edentulous individuals. MATERIALS AND METHODS: Four databases (MEDLINE, EMBASE, CENTRAL, and Web of Science) were systematically searched for observational studies and randomized controlled trials comparing patient-reported outcomes between metal and acrylic resin RPDs. The primary outcome was patient satisfaction. Included studies were assessed for risk of bias using the Cochrane risk of bias in nonrandomized studies of interventions tool (ROBINS-I) and the Cochrane Collaboration Risk of Bias Tool for Randomized Controlled Trials. The level of evidence was evaluated using Oxford Center for Evidence-based Medicine tool. A random-effects model was used to analyze the data. RESULTS: A total of 15 studies were included in the systematic review; 10 in the meta-analysis. The pooled effect size for patient satisfaction and oral health-related quality of life showed no statistical significant difference between metal and acrylic resin dentures (0.22, 95% confidence interval -0.01, 0.45, p = 0.06; 1.45, 95% confidence interval -2.43, 5.33, p = 0.46, respectively). Compliance with using RPDs was significantly higher in patients with metal compared to patients with acrylic resin dentures (pooled odds ratio = 0.57, 95% confidence interval 0.45, 0.73, p < 0.001). Most studies had critical to serious risk of bias and low level of evidence. CONCLUSIONS: The reviewed studies showed that there was no significant difference between metal and acrylic resin RPDs in patient satisfaction and oral health-related quality of life. Metal dentures were associated with higher patient compliance rates and were preferred more by patients compared to acrylic resin dentures. However, the reviewed studies had low levels of evidence and therefore, high-quality randomized controlled trials are needed to conclusively address the question of this review.


Assuntos
Resinas Acrílicas , Prótese Parcial Removível , Metais , Humanos , Medidas de Resultados Relatados pelo Paciente , Qualidade de Vida
18.
J Oral Rehabil ; 47(7): 902-909, 2020 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-32306416

RESUMO

BACKGROUND: The minimal clinically important differences (MID) of the Oral Health-related Quality of Life (OHRQoL) are the benchmark to meaningfully interpret treatment outcomes. However, there is no available information regarding the factors impact the MID variations after removable partial denture (RPD) treatment. OBJECTIVE: The purpose of this study was to determine the influence of the pre-treatment OHRQoL impairment on the MID in the oral health impact profile (OHIP) after RPD treatment. METHODS: In this prospective study, OHIP and Self-reported Oral Health (SROH) questionnaires were administered to patients before and 3 months after RPD treatment. The MID in each OHIP version (OHIP-49, OHIP-20, OHIP-14 and OHIP-5) was the mean score of patients who showed a minimum SROH improvement. Multiple linear regression analysis was conducted to determine the influence of the pre-treatment OHIP summary score on the MID score. RESULTS: Among 248 participants who completed both evaluations, 85 (34%) patients had minimum SROH improvements after RPD treatment. Multiple regression analysis indicated that each 10-point increase in the pre-treatment summary OHIP score was associated with an increase in the MID score of three points for OHIP-49 and four points for OHIP-20, OHIP-14 and OHIP-5 (P < .05), after controlling for age, sex and the number of missing teeth. Therefore, the MID increased as the pre-treatment OHRQoL was impaired. CONCLUSIONS: The MID was accounted for by approximately one-third of the pre-treatment summary score, independent of the OHIP version, in the interpretation of the effects of RPD treatment on patients' OHRQoL.


Assuntos
Prótese Parcial Removível , Humanos , Diferença Mínima Clinicamente Importante , Saúde Bucal , Estudos Prospectivos , Qualidade de Vida , Inquéritos e Questionários
19.
Int J Prosthodont ; 33(3): 315-320, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32320185

RESUMO

PURPOSE: To evaluate the antimicrobial activity of effervescent tablets on the surfaces of cobalt-chromium (Co-Cr) and heat-polymerized resin. MATERIALS AND METHODS: From a metal matrix, 55 circular wax patterns (Ø 12 × 3 mm) were obtained and cast in Co-Cr alloy. Muffles for acrylic resin were prepared from circular wax patterns (Ø 20 × 5 mm). The metal specimens were positioned in the muffle, and the resin was pressed into its surroundings to simulate the composition of a removable partial denture (RPD). The mixed specimens were sterilized and contaminated with Streptococcus mutans, Staphylococcus aureus, Candida albicans, and Candida glabrata, composing a multispecies biofilm, and subsequently immersed according to the manufacturer's instructions in four cleansing solutions: Polident 3 Minute denture cleanser (P3M), Polident for Partials (PP), Corega Tabs (CT), and NitrAdine (Ni); as well as distilled water (positive control) and no contamination (negative control). After cleansing, viable microorganisms were quantified by counting the number of colony-forming units (CFU/mL). From the CFU values, log10(CFU + 1) values were calculated for statistical analysis. Kruskal-Wallis test with Dunn post hoc test were performed (α = .05). RESULTS: There was a significant reduction (P = .001) of S mutans after immersion in Ni (median [95% CI] 3.27 [2.92; 3.45]) compared to the CT (3.86 [3.75; 4.01]) and control (4.08 (3.73; 4.22]) groups, while the PP (3.63 [3.28; 4.11]) and P3M (3.83 [3.61; 4.04]) groups presented an intermediate action. The effervescent tablets did not present antimicrobial action against S aureus (P = .537), C albicans (P = .795), or C glabrata (P = .519). CONCLUSION: Ni exhibited moderate antimicrobial action. The effervescent tablets did not promote reduction of multispecies biofilm, and their daily use should be carefully considered.


Assuntos
Anti-Infecciosos , Prótese Parcial Removível , Biofilmes , Candida albicans , Higienizadores de Dentadura , Dentaduras , Streptococcus mutans , Propriedades de Superfície , Comprimidos
20.
J Int Acad Periodontol ; 22(2): 10-17, 2020 04 01.
Artigo em Inglês | MEDLINE | ID: mdl-32224546

RESUMO

OBJECTIVES: To evaluate periodontal parameters of abutment teeth and interproximal sites, in patients with mandibular class I Kennedy Removable Partial Dentures (RPD), after 4 years of periodontal treatment. METHODS: Fourteen patients with periodontal disease were treated and evaluated for the following parameters: plaque index (PI), bleeding on probing (BOP), probing depth (PD), gingival recession (GR), clinical attachment loss (CAL) and keratinized mucosa (KM). Parameters were compared between abutment teeth with direct and indirect retainers at all time-points. Periodontal maintenance was recorded at 6, 18 and 48 months. Data were analyzed using the Friedman and Wilcoxon Tests. RESULTS: Most patients (n=11; 78.6%) included were female and had a mean age of 66 years (± 7.8). After 48 months, a significant reduction was only observed in PI for both abutment teeth; in contrast, PD, GR, CAL and KM all increased by the end of the study. BOP increased at 48 months for the abutment teeth with direct retainers. The distal site of the abutment teeth with direct retainers presented higher values for GR and CAL. CONCLUSIONS: Non-surgical periodontal therapy was effective during the first 18 months, but periodontal conditions were worse at 48 months after therapy. The distal sites of abutment teeth with direct retainers presented the worst periodontal conditions.


Assuntos
Prótese Parcial Removível , Idoso , Dente Suporte , Índice de Placa Dentária , Feminino , Seguimentos , Humanos , Índice Periodontal
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