The bruxism paradigm in the absence of teeth: observational cross-sectional study in full denture users / O paradigma do bruxismo na ausência de dentes: estudo observacional de corte transversal em usuários de próteses totais

ABSTRACT BACKGROUND AND OBJECTIVES: Bruxism is defined as an activity of the masticatory muscles, which is independent of the teeth presence, so it can occur in total edentulous patients and users of dental prostheses. In this sense, It is therefore necessary to know the clinical manifestations of bruxism in this population. The objective of this study was to evaluate the clinical manifestation and the presence of probable sleep and awake bruxism in a sample of users of full dentures treated at a teaching dental clinic in the city of Ribeirão Preto/SP. METHODS: The adopted sample consisted of 30 patients (mean age 72 years, 18 women/12 men). The following questionnaires were used to assess probable bruxism: Oral Behavior Checklist (OBC), Questionnaire of the American Academy of Orofacial Pain (AADO) and the Depression Anxiety and Stress Scale (DASS-21). The clinical assessment included the identification of wear on the prostheses, tongue indentations, bitten cheek and sensitivity in the masticatory muscles and temporomandibular joints. The data was analyzed using descriptive statistics. RESULTS: The average of use of the dentures were nine years. Six patients (20%) reported self-perceived sleep bruxism, and 11 (36%) reported self-perceived awake bruxism. OBC showed an average total score of 9.8 ± 6.2, with "teeth clenching" being the most described symptom. DASS-21 presented an average of 16.5, and stress, anxiety and depression were within normal limits. The most commonly reported symptoms in the AADO were headache, neck pain, pain and/or difficulty during jaw function and recent trauma to the head, neck or jaws. In the clinical evaluation, 15 (50%) patients had wear on prosthesis, only 2 (6%) had bitten cheek, none had tongue indentations, 4 (13%) had pain during palpation. CONCLUSION: Despite the limitations of the study (cross-sectional, small sample and absence of instrumental evaluation of bruxism), it is possible to conclude that a significant portion of users of total dentures presented probable bruxism, with tooth clenching being the main report and wear on the prosthesis the main clinical manifestation.

RESUMO JUSTIFICATIVA E OBJETIVOS: O bruxismo é definido como uma atividade da musculatura mastigatória, que independe da presença de dentes, portanto pode ocorrer em pacientes desdentados totais e usuários de próteses dentárias. Assim, é preciso conhecer como o bruxismo se manifesta clinicamente nessa população. O objetivo deste estudo foi investigar a presença do provável bruxismo de sono e de vigília em usuários de prótese total atendidos em uma clínica odontológica de ensino em Ribeirão Preto/SP. MÉTODOS: Uma amostra de conveniência foi composta por 30 pacientes (média de 72 anos, 18 mulheres e 12 homens). Os seguintes questionários foram utilizados para avaliar o provável bruxismo: Oral Behavior Checklist (OBC), Questionário da Academia Americana de Dor Orofacial (AADO) e o Depression Anxiety and Stress Scale (DASS-21). A avaliação clínica incluiu a identificação de desgastes nas próteses, língua dentada, bochecha mordiscada e sensibilidade nos músculos mastigatórios e nas articulações temporomandibulares. Os dados foram analisados por meio de estatística descritiva. RESULTADOS: A média de uso das próteses foi de nove anos. Seis indivíduos (20%) relataram bruxismo do sono e 11 (36%) relataram bruxismo de vigília. O OBC apresentou média de escore total de 9,8 ± 6,2, sendo "apertar de dentes" o sintoma mais descrito. O DASS-21 apresentou média total de 16,5, com valores de estresse, ansiedade e depressão dentro da normalidade. Os sintomas mais relatados no AADO foram cefaleia, dores no pescoço, dor e/ou dificuldade durante a função mandibular e trauma recente na cabeça, pescoço ou maxilares. Na avaliação clínica, 15 (50%) dos pacientes apresentaram desgastes na prótese, 4 (13%) dor por palpação, 2 (6%) bochecha mordiscada e nenhum (0%) língua dentada. CONCLUSÃO: Apesar das limitações deste estudo (corte transversal, amostra reduzida e ausência de avaliação instrumental do bruxismo) foi possível concluir que uma parcela significativa de usuários de próteses totais apresentou provável bruxismo, sendo o apertamento dentário o principal relato e desgastes na prótese a principal manifestação clínica.

Influência da qualidade das próteses totais na prevalência de disfunção temporomandibular / Influence of quality of total prostheses on the prevalence of temporomandibular disorder

Introduction Temporomandibular disorder (TMD) involves the mastication and temporomandibular articulation muscles. Completely toothless patients with prostheses should be thoroughly assessed since edentulism causes damage that can lead to TMD onset. Objective This study aims to assess the effect of the technical quality of total prostheses (TPs) on TMD occurrence in patients with bimaxillary TPs. Material and method 154 patients responded to a questionnaire to obtain personal data, information regarding prostheses, anamnestic index for TMD, and the prosthesis quality index. Result Of the 154 patients examined, 64 (41.6%) had no TMD, 61 (39.6%) had mild TMD, 23 (14.9%) moderate, and only 6 (3.9%) showed severe TMD. As for the quality of total prosthesis, 78 (50.6%) completely toothless individuals had satisfactory TPs while 76 (49.4) presented unsatisfactory prostheses. Regarding the time using total prosthesis, around 50% of individuals with up to 10 years use presented some degree of TMD and 70% of individuals with over 10 years presented TMD. Conclusion Considering the methodology used and the population studied, we conclude that the quality of the TPs did not influence the incidence of TMD.

Introdução A disfunção temporomandibular (DTM) é uma desordem que envolve os músculos da mastigação e da articulação temporomandibular. Pacientes desdentados totais e que utilizam protéses requerem uma avaliação criteriosa, já que o edentulismo leva a prejuízos que podem contribuir para o aparecimento de DTM. Objetivo O objetivo deste presente estudo foi avaliar o efeito da qualidade técnica das próteses totais (PTs) na incidência de DTM em pacientes portadores de PTs bi-maxilares. Material e método Foi aplicado um questionário a 154 pacientes contendo os dados pessoais, o histórico das próteses, o índice anamnésico para DTM e o índice de qualidade de prótese. Resultado Dos 154 pacientes examinados, 64 (41,6%) estavam livres de DTM, 61 (39,6%) possuíam DTM leve, 23 (14,9%), moderada e apenas 6 (3,9%) mostravam DTM severa. Quanto à qualidade da prótese total, 78 (50,6%) desdentados totais portavam PTs satisfatórias e 76 (49,4) estavam com próteses insatisfatórias. Quanto ao tempo de uso da prótese total, cerca de 50% dos indivíduos com até 10 anos de uso apresentaram algum grau de DTM e 70% dos indivíduos com mais de 10 anos acusaram a presença de DTM. Conclusão Considerando-se a metodologia empregada e a população estudada, pôde-se concluir que a qualidade das PTs não influenciou na presença de DTM.

Centric relation registration with intraoral central bearing on curved vs. flat plates with rim trays in edentulous patients / Registro de relación céntrica con apoyo central intraoral en platinas curvas vs. rectas con cubetas rodete en edéntulos

ABSTRACT The aim of this study was to compare jaw relation record in the completely edentulous patient using acrylic rim trays with curved or flat registration plates or using the manual guidance technique. The study included 17 patients - 11 female and 6 male, average age 70 years. Three jaw relation records were taken during one session, in the same vertical dimension, using acrylic rim trays: (1) with manual guidance (IM), (2) with self-guided recording system with acrylic rim tray and central support using a curved plate (BYC) and (3) with self-guided recording system with acrylic rim tray and central support using a flat plate (BYR). The models were mounted on a Whip Mix 2240 articulator to which a condyle position device (Orthodent) was added to register, at the level of the condyle box and incisal table, the differences among the positions recorded with the different setups (IM, BYC and BYR). The distances were measured on millimeter paper provided by the recording system manufacturer. For statistical analysis, confidence intervals (95%) were calculated for the mean differences and Student's t-test for paired data (significance level: alpha<0.05). On both the mesiodistal plane and the vertical plane at the level of each condyle box and the incisal table, there were statistically significant differences among the three systems (p<0.001). At the level of incisal table, BYC and BYR provided more retrusive records than IM [arithmetic means (standard deviations) in millimeters: 3.82 (2.10) and 4.53 (2.18), respectively). The records obtained with BYR were significantly more retrusive with BYC [arithmetic mean (standard deviation) in millimeters: 1.41 (1.00)]. We reject the null hypothesis that proposes that all three registration systems described are clinically equivalent for establishing a jaw relation record in completely edentulous patients.

RESUMEN El objetivo de este estudio fue comparar el registro de la posición intermaxilar en el paciente desdentado total obtenido con el uso de cubetas rodete de acrílico y platinas de registro curva o recta y con la técnica de inducción manual. Se incluyeron en el estudio 17 pacientes, 11 mujeres y 6 varones con edad promedio de 70 años. En cada uno de ellos se obtuvieron en la misma sesión y en la misma dimensión vertical tres registros intermaxilares con cubetas rodete de acrílico: uno con inducción manual (IM), otro autoinducido con el sistema de cubeta rodete de acrílico y apoyo central único utilizando una superficie palatina de registro curva (BYC) y un tercero con este mismo sistema pero con la superficie palatina recta (BYR). Los modelos correspondientes fueron montados en un articula-dor Whip Mix modelo 2240 al que se le adicionó un dispositivo de posición condilar (Orthodent) para registrar, a nivel de la caja condílea y la platina incisiva, las diferencias existentes entre las posiciones obtenidas con cada una de las variantes de las platinas en las cubetas rodete acrílicas y la posición registrada con inducción manual. Las distancias fueron medidas sobre papel milimetrado provisto por el fabricante del sistema de registro. El análisis estadístico se llevó a cabo mediante el cálculo de intervalos de confianza (95%) para las diferencias medias y prueba de t de student para datos apareados (nivel de significancia: alfa<0,05). Tanto en el plano mesiodistal como en el vertical a nivel de cada caja condilea como en la platina incisiva, se encontró diferencia estadísticamente significativa entre las tres variables de registro (p<0,001). A nivel de las platinas incisivas tanto BYC como BYR proporcionaron registros más retrusivos que IM [medias aritméticas (desviaciones estándar) en milímetros: 3,82 (2,1°) y 4,53 (2,18), respectivamente). Los obtenidos con BYR fueron significativamente más retrusivos que en el grupo BYC [media aritmética (desviación estándar) en milímetros: 1,41 (1,00)]. Rechazamos la hipótesis nula que propone que los tres sistemas de registro expuestos son clínicamente equivalentes para establecer una posición de registro intermaxilar en desdentados totales.

Evaluation of oral stereognosis in completely edentulous patients with palatal tori / Evaluación de la estereognosia oral en pacientes completamente edéntulos con toros palatinos

Background: The corollary is not investigated in the completely edentulous patients with palatal tori. Objective: The aim of this study was to assess the oral stereognostic ability in completely edentulous patients with palatal tori. Material and Methods: Thirty-four completely edentulous patients aged 50 to 89 years were allocated to Group 1 (without palatal tori, n=18) and Group 2 (with palatal tori, n=16). The oral stereognostic test was conducted using 6 intraoral test pieces (circle/square/rectangle/triangle/plus/toroid) that were fabricated to standard dimensions using the light cure acrylic resin. Each test piece was placed in the patient's mouth and was asked to manipulate the test piece between the tongue and the palate. The patients identified the shapes by matching them on a shape chart. Each correct identification was assigned a score of 1. The response time taken to identify each shape was recorded. Statistical computation was done using a chi - square test and Mann-Whitney U test. Results: Significant difference was observed in the overall scoring percentages between the 2 groups (p<0.05). Group 2 had lower oral stereognostic scores compared to group 1 (p<0.05). There was no statistically significant difference in the mean response time for identifying the shapes among the groups, however group 2 patients had longer response time. Conclusion: Oral stereognostic ability of the completely edentulous patients with torus palatinus was lower when compared to completely edentulous patients without tori.

Antecedentes: el corolario no se investiga en los pacientes completamente desdentados con toros palatinos. Objetivo:El objetivo de este estudio fue evaluar la capacidad estereognóstica oral en pacientes completamente edéntulos con toros palatinos. Material y Métodos: Treinta y cuatro pacientes completamente edéntulos de 50 a 89 años fueron asignados al Grupo 1 (sin toros palatinos, n = 18) y al Grupo 2 (con toros palatinos, n = 16). La prueba estereognóstica oral se realizó utilizando 6 piezas de prueba intraorales (círculo / cuadrado / rectángulo / triángulo / cruz / aro) que se fabricaron a dimensiones estándar utilizando la resina acrílica fotopolimerizable. Cada pieza de prueba se colocó en la boca del paciente y se le pidió que manipulara la pieza de prueba entre la lengua y el paladar. Los pacientes identificaron las formas haciéndolas coincidir en un gráfico de formas. A cada identificación correcta se le asignó una puntuación de 1. Se registró el tiempo de respuesta necesario para identificar cada forma. El cálculo estadístico se realizó mediante la prueba de chi-cuadrado y la prueba U de Mann-Whitney. Resultados: Se observó una diferencia significativa en los porcentajes de puntuación generales entre los 2 grupos (p<0,05). El grupo 2 tuvo puntuaciones estereognósticas orales más bajas en comparación con el grupo 1 (p<0,05). No hubo diferencia estadísticamente significativa en el tiempo medio de respuesta para identificar las formas entre los grupos, sin embargo, los pacientes del grupo 2 tuvieron un tiempo de respuesta más largo.Conclusión: La capacidad estereognóstica oral de los pacientes completamente edéntulos con torus palatino fue menor en comparación con los pacientes completamente edéntulos sin torus.

Análisis retrospectivo de implantes para sobredentaduras en maxilar inferior, en el marco de la formación de recursos humanos / Retrospective analysis of dental implants placed in the lower jaw, within the post graduate dental training framework

Objetivo: Evaluar el porcentaje de implantes oseointegrados colocados en pacientes edéntulos para la confección de sobredentaduras inferiores, en el marco de la formación de recursos humanos. Materiales y métodos: Se analizaron las historias clínicas de los pacientes que recibieron dos implantes dentales inferiores para la confección de sobredentaduras en el servicio de residentes de la carrera de Especialización en Cirugía y Traumatología Bucomaxilofacial de la Facultad de Odontología de la Universidad de Buenos Aires, entre agosto de 2012 y diciembre de 2018. Se consideraron para el análisis el porcentaje de implantes oseointegrados y su relación con el tipo de operador (docente o residente), la situación del reborde óseo y el hábito de fumar. Resultados: De los 176 implantes colocados en 88 pacientes (edad promedio = 67 años), a los 3-4 meses el 98% (IC95: 94-99%) se hallaba oseointegrado. No se encontró una relación estadísticamente significativa entre el tipo de operador y el fracaso (P>0,99) Conclusión: En un servicio de formación, la tasa de éxito, evaluada en la segunda cirugía, de dos implantes dentales colocados en el maxilar inferior para sobredentaduras fue de 98%. No se hallaron diferencias entre los resultados logrados por residentes y docentes del servicio (AU)

Aim: To evaluate the percentage of osseointegrated im- plants placed in edentulous patients to restore with mandib- ular overdentures, within the post graduate dental training framework. Materials and methods: Medical records of patients who received two dental implants in the mandible for the placement of overdentures in the resident clinic of the special- ization career in Oral and Maxillofacial Surgery and Trauma- tology from the Facultad de Odontología de la Universidad de Buenos Aires, between August 2012 and December 2018. The percentage of osseointegrated implants was analysed, and the association with the variables: operator (teacher or resident), mediate or immediate placement, and smoking. Results: 176 implants were placed in 88 patients with an average age of 67 years old. 98% (IC95: 94-99%) of the implants were osseointegrated at 3-4 months. No statistically significant association was detected between the type of oper- ator and implant failure (P>0.99). Conclusion: In the teaching dental training clinic, the success rate, evaluated at the second implant stage surgery, of two dental implants placed in the mandibule for overden- tures was 98%. No differences were found between the results achieved by residents and teachers (AU)

Rehabilitation of a patient with atrophic ridges using gothic arch tracing and nonpressure impression: a case report

Flabby ridges adversely affect the stability of complete dentures. For the management it is suggested that soft tissues reconditioned before making definitive dentures, and modified impression techniques used for the flabby ridges. Also, correct record of centric relation is important in complete dentures. This case of 67-year-old edentulous female patient had atrophied ridges on the mandible and the flabby ridge on the maxilla. Treatment dentures were fabricated using gothic arch tracing method and tissue conditioner. Definitive dentures were made using window opening impression technique, the gothic arch tracing method, and lingualized occlusion. The patient was satisfied with the function and esthetic quality of the new prostheses.

Considerations for the Survival of Complete Arch Implant-Supported Zirconia Restorations; Status of Antagonistic Arches and Stress Distribution on Frameworks: A Case Report

This report describes two cases of complete arch implant-supported restorations. The first patient had seven dental implants in each arch with monolithic zirconia frameworks. At four weeks' follow-up, the one-piece maxillary framework was fractured, which was re-designed and re-fabricated using laser-sintered cobalt-chrome alloy. The second patient had four implants in the mandible only. A mandibular monolithic zirconia framework and a maxillary conventional complete denture were fabricated and delivered. At five years' follow-up, the patient reported no significant discomfort. Careful consideration and monitoring of the status of antagonistic arches and stress distribution on zirconia frameworks were suggested for complete arch implant-supported fixed restorations

Incumplimiento de las indicaciones postrehabilitación protésica y su influencia en la calidad de vida / Unfulfillment of the prosthetic post rehabilitation indications and its influence in the life quality

Introducción: la existencia de pacientes con prótesis totales que presentan problemas para desarrollar sus funciones puede tener diferentes causas, entre ellas el incumplimiento de las indicaciones médicas, y factores capaces de repercutir de forma directa sobre los pacientes, que pueden modificar su calidad de vida en relación con la rehabilitación protésica. Objetivo: Evaluar la influencia del incumplimiento de las indicaciones post rehabilitación protésica en la calidad de vida de los pacientes desdentados totales tratados en las Clínicas Estomatológicas Provincial Docente Ismael Clark Mascaró y La Vigía durante el período de septiembre del 2009 a septiembre del 2013. Material y método: Se realizó un estudio descriptivo en un universo de 254 pacientes desdentados totales rehabilitados. A través de un muestreo probabilístico aleatorio se obtuvo una muestra de 43 pacientes. Resultados: El nivel de incumplimiento bajo se presentó principalmente en el grupo de 50-69 años, con un 50 % y el alto en el grupo de 70 años y más. Los elementos no cumplidos por los pacientes resultaron ser: método incorrecto de sostener las prótesis para realizar su higiene (46,5 %), uso permanente de las prótesis (30,2 %) e incorrecta frecuencia del cepillado de las prótesis (25,6 %). Conclusiones: Los mayores niveles de incumplimiento de las indicaciones de uso, cuidado e higiene de las prótesis totales se presentaron en el grupo de 70 años y más. La calidad de vida de los pacientes con rehabilitación protésica total está influenciada por el nivel de incumplimiento de las indicaciones de uso, cuidado e higiene de las prótesis.

Introduction: the existence of patients with total dental prosthesis who present problems to develop their functions may have different causes, among them the unfulfillment of the medical instructions, as well as factors capable of influencing directly on the patients, that can modify their life quality with regards to the prostatic rehabilitation. Objective: to evaluate the influence of the unfulfillment of the prosthetic post-rehabilitation in the life quality of totally umpteenth patients treated at the Teaching Provincial Estomatological Clinics Ismael Clark Mascaró and La Vigía since September 2009 to September 2013. Material and method: it was carried out a descriptive study in a universe of 254 unteeth patients totaly rehabilitated. By means of probabilistic aleatory sampling it was obtained a sample of 43 patients. Results: the lowest level of unfulfillment was in patients between 50 and 69 years old, with a 50 % and the highest one was in patients older than 70 years old. The unfulfilled elements by these patients were : incorrect method of taking out the prothesis for hygiene (46,5 %), permanent use of the dental prothesis (30,2 %) and incorrect frequency for brushing the dental prothesis (25,6 %). Conclusions: the highest levels of unfulfillment of the medical instructions for using, taking care and hygiene of the dental prosthesis were presented in patients older than 70 years old. The life quality of patients with total prosthesic rehabilitation is influenced by the level of unfulfillment of the medical instructions for its use, taking care and hygiene of the prosthesis.

Location of maxillary intraosseous vascular anastomosis based on the tooth position and height of the residual alveolar bone: computed tomographic analysis

PURPOSE: The aims of this study were to measure the distance of the intraosseous vascular anastomosis in the anterolateral wall of the maxillary sinus from different reference points, and to correlate the location of the intraosseous vascular anastomosis with the tooth position and the residual bone height of the maxilla. METHODS: Computed tomography (CT) images were taken from 283 patients undergoing dental implants placement in the posterior maxilla. Three horizontal lines were drawn at the ridge crest, maxillary sinus floor, and the position of the anastomosis. A vertical second line at the center of each tooth was drawn perpendicular to the horizontal lines. The distance from the ridge crest to the maxillary sinus floor and the distance from the maxillary sinus floor to the bony canal were measured from the intersections of the horizontal and vertical lines. The residual alveolar bone height was used to categorize three groups: group 1,8 mm. RESULTS: The residual bone height values of different tooth positions were significantly different (P=0.0002). The distance from the maxillary sinus floor to the intraosseous vascular anastomosis was significantly different between groups 1 and 3 (P=0.0039). At the molar sites, a moderate negative correlation was found between the residual bone height and the distance from the maxillary sinus floor to the intraosseous anastomosis. The distances of the alveolar ridge crest and the maxillary sinus from the intraosseous vascular anastomosis were not significantly different between sexes. CONCLUSIONS: Within the limitations of this study, sites with a higher residual bone height in the molar regions were at a relatively high risk of artery damage during window osteotomy preparation; therefore, we recommend taking more precautions when using a lateral approach for sinus elevation.

Situación de salud bucal y estado protésico del paciente edentado bimaxilar que acude a la Facultad de Odontología de la Universidad de Antioquia: un estudio piloto / Oral health profile and denture status of bimaxillary edentulous patients treated at universidad de antioquia’s school of dentistry: a pilot study

Introducción: este estudio tuvo como objetivo general analizar la situación de salud bucal y el estado protésico en unamuestra de pacientes edentados bimaxilares atendidos en la clínica del adulto de la Facultad de Odontología de la Universidad de Antioquia. Métodos: estudio descriptivo en 54 pacientes que consultaron a la institución en el periodo 2008-2010. Se consideraron lassiguientes variables: edad, sexo, estrato socioeconómico, nivel educativo, frecuencia de cepillado, utilización de enjuagues, limpieza de la mucosa, remoción nocturna de la prótesis, presencia de estomatitis, úlceras, aumento fibroso, porosidades, pigmentaciones, cálculos, fracturas, dientes caídos, desgaste dentario y grado de satisfacción con el aparato protésico. Se describieron las variables mencionadas por sexo y pruebas Chi cuadrado para observar significancias estadísticas. Resultados: la mayoría de la población estudiada se ubicó en estratos socioeconómicos y niveles educativos bajos. El 48% presentó algún tipo de estomatitis en el arco superior. El 46% se retiran ambas prótesis en la noche, con mayor proporción en las mujeres (58%). Los cálculos fueron el hallazgo más importante en cuanto al estado protésico, presentándose en el 79% en la prótesis inferior. Casi el 80% de la población examinada estaba satisfecha con la prótesis total superior y el 44% con la inferior. Conclusión: los resultados encontrados reflejaron la falta de mantenimiento y controlde la situación de estos pacientes, así como deficiencias en los hábitos de higiene bucal y de las prótesis, situación que no concuerda con la alta satisfacción encontrada.

Introduction: the main objective of this study was to analyze oral health conditions and denture status of a sample of bimaxillary edentulous patients treated at the adult clinic of Universidad de Antioquia’s School of Dentistry. Methods: this was adescriptive study on 54 patients seeking consultation between 2008 and 2010. The following variables were considered: age, gender, socioeconomic level, education level, frequency of brushing, mouthwash use, mucosa cleansing, nightly removal of prosthesis, presence of stomatitis, ulcers, fibrous increase, porosities, pigmentations, calculi, fractures, lost teeth, dental wear, and level of satisfaction withthe prosthetics apparatus. These variables were described by gender and Chi Square tests in order to observe statistical significances. Results: most of the studied population come from lower socioeconomic groups and have low education levels. 48% of this populationpresented some kind of upper arch stomatitis. 46% of them remove both prostheses at night, with a greater proportion among women (58%). Calculi were the most important finding in terms of denture status, as it occurred in 79% of lower prostheses. Almost 80% of the assessed population was satisfied with the upper denture, while 44% were satisfied with the lower one. Conclusions: the findings suggest lack of care and control of these patients’ situation, as well as deficiencies in terms of hygiene habits on both the mouth and the prosthesis —a situation that does not match the high levels of satisfaction found.

Associação entre a higiene de próteses totais e qualidade de vidarelacionada à saúde bucal em pacientes desdentados / Association between denture hygiene and oral health-related quality of life in edentulous patients

Objetivo: Intervenções visando à melhor higiene de próteses totais podem ter maior chance de sucesso caso levem à melhora da qualidade de vida relacionada à saúde bucal (QVSB), assim melhorando a colaboração do paciente. No entanto, não se conhece se há associação entre a higiene precária das próteses e pobre QVSB. Assim, este estudo buscou avaliar a associação entre a área coberta por biofilme sobre próteses totais e a QVSB em uma amostra de pacientes completamente desdentados. Material e método: Uma amostra foi composta por 80 participantes (20 homens e 60 mulheres, média etária de 65,0 ± 9,1 anos) que solicitavam novas próteses totais em uma clínica universitária. A variável usada como medida para a higiene das próteses foi a área coberta por biofilme, quantificada por meio de um método computadorizado. Em seguida, participantes responderam ao instrumento OHIP-EDENT e a questões sobre parâmetros sócio-demográficos. Testes bivariados e regressão múltipla quantificaram a associação entre o biofilme e as demais variáveis (a = 0,05). Resultado: A correlação da área coberta por biofilme com a QVSB, bem como com a maioria das variáveis sócio-demográficas, foi fraca e não significante. A regressão múltipla confirmou essa falta de associação entre o biofilme das próteses e a QVSB. Conclusão: É possível concluir que a higiene de próteses totais é independente da QVSB para o usuário de próteses totais regular.

Objective: Interventions for better denture cleansing would be more successful if they can improve oral health-related quality of life (OHQoL), thus reinforcing patient?s compliance. Nevertheless, it is currently unknown whether precarious denture hygiene is associated with poor OHQoL. This study aimed to assess the association between denture biofilm coverage and OHQoL in a sample of adult edentulous patients wearing complete dentures. Material and method: The sample was composed by 80 participants (20 men and 60 women, mean age of 65.0 ± 9.1 years) who requested new complete dentures in a university clinic. The variable used as a measure of denture hygiene was biofilm coverage area, which was quantified by means of a computerized method. Afterwards, participants answered the OHIP-EDENT instrument and questions about socio-demographic parameters. Bivariate tests and multiple regression quantified the association between denture biofilm and other variables (a = 0.05). Result: Correlation between biofilm coverage area and OHQoL, as well as with most socio-demographic variables, was weak and non significant. Multiple regression confirmed the lack of association between denture biofilm and OHQoL. Conclusion: It can be concluded that denture hygiene is independent of OHQoL for the average complete denture wearers.