Comparación de prótesis removibles parciales y totales entregadas según sus características clínicas en el servicio de odontología del hospital nacional de geriatría y gerontología, en el período de tiempo comprendido del 1 de enero 2005 al 31 de diciembre del 2008 / Comparison of partial and total removable prosthesis delivered according to their clinical characteristics in the dentistry service of the national hospital of geriatry and gerontology, in the period under january 1 of 2005 to december 31 of 2008

RESUMEN Objetivo: Comparar la cantidad y características de las prótesis dentales removibles parciales y totales, en el servicio de odontología del Hospital Nacional de Geriatría y Gerontología, en el periodo de tiempo comprendido del 1 de enero 2005 al 31 de diciembre 2008, equivalentes a 326 expedientes. Se tomó la base de datos del servicio de odontología de consulta externa especializada de los pacientes atendidos de los años 2005 al 2008, en los cuales se entregaron un total de 2786 prótesis dentales removibles. Materiales y métodos: Con base en el dato anterior se seleccionó la muestra no aleatoria a conveniencia hasta alcanzar el tamaño de 599 prótesis entregadas, examinando 326 expedientes del periodo de enero del 2005 a diciembre del 2008, con un nivel de confianza de 99% y un error de muestreo de 0.0466. La recolección de datos se realizó por medio del programa Microsoft Excel donde se utilizó una tabla en la que se anotó el número de expediente, fecha de inicio y conclusión de prótesis, tipo de prótesis, cantidad y color de prótesis, edad, género y domicilio del paciente por distrito, cantón y provincia. El procesamiento se realizó por medio de estadística descriptiva utilizando cuadros y gráficos. Resultados: Se determinó que el mayor porcentaje de rango de edad de personas que solicitaron prótesis removibles fue de 62 a 65 años, independiente si eran prótesis totales o parciales, los pacientes que requirieron dos prótesis fueron 273 de 326, en su mayoría los pacientes solicitaron prótesis totales para un total de 372 de 599 prótesis entregadas. De la guía de color utilizada en el HRBC los colores más requeridos fueron los tonos claros blanco amarillentos que corresponde al número 62 y 65; de los expedientes analizados la mayoría de los pacientes residían en San José con un total de 200 pacientes. Se concluye que el mayor porcentaje de edentulismo que se presento es el edentulismo total con un 62%, la prótesis más utilizada es la prótesis total superior removible y en su mayoría los pacientes requieren dos prótesis, con respecto al color no es concluyente para este estudio debido a los datos no disponibles en los expedientes analizados.

ABSTRACT Objective: Compare the quantity and characteristics of partial and total removable dental prostheses, in the dentistry service of the National Hospital of Geriatrics and Gerontology, in the period from January 1, 2005 to December 31, 2008. The database of the specialized outpatient dentistry service of the patients treated from 2005 to 2008 was taken, in which a total of 2786 removable dentures were delivered. Materials and methods: Based on the previous data, the non-random sample was selected for convenience until reaching the size of 599 protheses of 326 files, with a confidence level of 99% and a sampling error of 0.0466. Data collection was carried out through the Microsoft Excel program where a table was used in which the file number, date of start and conclusion of the prosthesis, type of prosthesis, amount and color of prosthesis, age, gender and address were used of the patient by district, canton and province. The processing was carried out by means of descriptive statistics using tables and graphs. Results: It was determined that the highest percentage of the age range of people who requested removable prostheses was 62 to 65 years, the patients that required two prostheses were 273 of 326. In their majority, the patients requested total prostheses for a total of 372 of 599 prostheses delivered. Of the color guide used in the HRBC, the most requested colors were the light yellowish-white tones corresponding to the number 62 and 65; of the files analyzed, most of the patients resided in San José with a total of 200 patients. Conclusion: It is concluded that the highest percentage of edentulism that is presented is total edentulism with 62%, the most commonly used prosthesis is the removable upper total prosthesis and for the most part patients require two prostheses, with respect to color it is inconclusive for this study due to data not available in the analyzed files.

Autopercepción de salud bucal en adultos mayores portadores de prótesis parcial removible acrílica / Self-perception of oral health in elderly with acrylic removable partial acrylic prosthesis

Introducción: el incremento de la población mayor de 60 años influye en que cada día acudan más personas a los servicios de prótesis en busca de rehabilitación, y en la mayoría de los casos no se adaptan a las nuevas condiciones. Objetivo: determinar la asociación entre algunos factores que influyen en la autopercepción de salud bucal en adultos mayores portadores de prótesis parcial removible acrílica. Métodos: investigación observacional descriptiva (enero-diciembre de 2013) en 150 adultos, seleccionados al azar, mayores de 60 años rehabilitados protésicamente. Se evaluaron las variables: edad, sexo, tipo de prótesis, niveles de escolaridad, experiencia anterior y tiempo de uso, en asociación con la autopercepción de salud bucal, medida esta mediante el índice de salud bucal geriátrico. Resultados: el 53 de los pacientes tenía entre 60 y 69 años y fue en los que se obtuvo la mayor frecuencia de autopercepción regular (49,3 por ciento). Los del sexo masculino (16 por ciento) fueron quienes tuvieron una mayor frecuencia de respuestas que coincidió con una autopercepción buena. Las mayores frecuencias de autopercepción mala correspondieron a los de nivel preuniversitario y universitario, quienes en conjunto sumaron el 19 por ciento, a los que tenían prótesis superior (17,3 por ciento) y a los de experiencia previa (25 por ciento). El 24 por ciento tenía cuatro o más años de rehabilitados y con mala autopercepción. Conclusiones: la edad inferior a 80 años, el sexo masculino, la rehabilitación con prótesis en ambas arcadas y las experiencias previas, son los factores que más se asocian con la buena autopercepción de salud bucal de los adultos mayores(AU)

Introduction: the increase of the number of older people leads to an increase in the number of people going to the dental services looking for rehabilitation, and in most of cases, they do not adapt themselves to the new conditions. Objective: to identify the association of some factors that influence in the self-perception of oral health over the older adults with removable acrylic partial denture. Methods: observational and descriptive research study conducted in 150 randomly selected old people aged over 60 years with denture. The evaluation variables were age, sex, type of denture, schooling, previous experience and length of wear, in association with self-perception of oral health measured by the geriatric oral health assessment index. Results: fifty three percent of patients were 60 to 69 years-old and this age group exhibited the most frequent regular self-perception (49.3 percent). Males (16 percent) were the ones with more frequency of responses that agreed with good self-perception. The highest frequency of bad self-perception was found in high school and university students who together accounted for 19 percent, in persons wearing upper denture (17.3 percent) and in those with previous experience of denture (25 percent). Twenty four percent of the group had been orally rehabilitated for 4 years or more with bad self-perception of oral health. Conclusions: less than 80 years of age, masculine sex, denture rehabilitation in both dental arches and previous experiences of wearing dentures are the factors that mostly relate to good self-perception of oral health in older adults(AU)

Self-report of gingival problems and periodontitis in indigenous and non-indigenous populations in Chiapas, Mexico.

OBJECTIVE: To estimate the prevalence of self-reported gingival and periodontal conditions and their association with smoking, oral hygiene, indigenous origin, diabetes and location (urban or rural) in indigenous and non-indigenous adults in Chiapas, Mexico. METHODS: A cross-sectional study of 1,749 persons, ≥20 years of age, living in four rural and four urban marginal localities in Comitán (Chiapas, México). The variables investigated were: age; sex; indigenous origin; oral hygiene; halitosis; chewing ability; gingival conditions; periodontitis; smoking; alcoholism; diabetes; and location. Bivariate analysis and a logistic regression model were used to identify the association of periodontitis with the independent variables. RESULTS: In total, 762 (43.6%) indigenous and 987 (56.4%) non-indigenous persons were interviewed. Their mean age was 41 ± 14 years, 66.7% were women and 43.8% lived in rural locations. Gingival problems were reported by 68.5% and periodontitis by 8.7%. In total, 17.9% had used dental services during the previous year, 28.7% wore a removable partial or a complete dental prosthesis, 63.7% had lost at least one tooth, the prevalence of diabetes was 9.2% and the prevalence of smoking was 12.2%. The logistic regression model showed that age, diabetes and the interaction between rural location and indigenous origin were associated with the presence of periodontitis. CONCLUSIONS: Indigenous people living in rural areas are more likely to have periodontitis. It is necessary to promote oral health practices in indigenous and marginalised populations with a focus on community-oriented primary care.

Provision of specific dental procedures by general dentists in the National Dental Practice-Based Research Network: questionnaire findings.

BACKGROUND: Objectives were to: (1) determine whether and how often general dentists (GDs) provide specific dental procedures; and (2) test the hypothesis that provision is associated with key dentist, practice, and patient characteristics. METHODS: GDs (n = 2,367) in the United States National Dental Practice-Based Research Network completed an Enrollment Questionnaire that included: (1) dentist; (2) practice; and (3) patient characteristics, and how commonly they provide each of 10 dental procedures. We determined how commonly procedures were provided and tested the hypothesis that provision was substantively related to the three sets of characteristics. RESULTS: Two procedure categories were classified as "uncommon" (orthodontics, periodontal surgery), three were "common" (molar endodontics; implants; non-surgical periodontics), and five were "very common" (restorative; esthetic procedures; extractions; removable prosthetics; non-molar endodontics). Dentist, practice, and patient characteristics were substantively related to procedure provision; several characteristics seemed to have pervasive effects, such as dentist gender, training after dental school, full-time/part-time status, private practice vs. institutional practice, presence of a specialist in the same practice, and insurance status of patients. CONCLUSIONS: As a group, GDs provide a comprehensive range of procedures. However, provision by individual dentists is substantively related to certain dentist, practice, and patient characteristics. A large number and broad range of factors seem to influence which procedures GDs provide. This may have implications for how GDs respond to the ever-changing landscape of dental care utilization, patient population demography, scope of practice, delivery models and GDs' evolving role in primary care.

Removable dental prostheses and cardiovascular survival: a 15-year follow-up study.

OBJECTIVES: In previous studies, increasing number of teeth predicted better survival and the acute needs for dental treatment predicted mortality. We sought to investigate whether restored dentitions by various removable dental prostheses impact cardiovascular (CVD) longevity. METHODS: Kuopio Oral Health and Heart study was initiated as a cross-sectional investigation with 256 subjects with diagnosed coronary artery disease [CAD] and 250 age- and sex-matched controls without CAD in 1995-1996. The mean age of both groups was 61, 30% were females. We appended mortality follow-up records to the baseline data and formulated this 15-year follow-up study. We examined the relationship between various types of dental prostheses and cardiovascular mortality by proportional hazard regression analyses. We also explored their correlation to oral and systemic inflammatory markers such as asymptotic dental score and C-reactive protein. RESULTS: In a model adjusted for age, sex and smoking, groups having only natural teeth (NT), removable partial denture(s) [PD] and NT, a PD and a full denture [FD], and FD/FD or FD/NT demonstrated the following hazard ratios for mortality (95% confidence interval). NT both arches: 1.00 [reference]; PD and NT: 0.75 [0.22-2.56]; PD and FD: 1.99 [1.05-3.81]; and FD opposed by FD or NT: 1.71 [0.93-3.13], respectively [p for trend=0.05]. Although statistically not significant, those with PD and NT with mean a number of teeth [Nteeth] of 15.4 had better survival compared with those who had all NT [Nteeth=22.5]; while those who had FD and PD [Nteeth=6.5] had shorter longevity than those with FD/FD or FD/NT [Nteeth=3.5]. CONCLUSIONS: Although not all subgroups of dental prostheses reached significant relationship with CVD mortality, our study suggests that not only the number [quantity] of remaining teeth but their maintenance [quality] removing potential inflammatory foci, such as pericoronitis or retained root tips, may positively impact on cardiovascular survival.

Relationship between squamous cell carcinoma of the anterior two thirds of the tongue and removable denture use: a pioneer study in a Portuguese population.

The aim of the study was to determine whether there is any relationship between the presence of removable dentures and squamous cell carcinoma of the anterior two thirds of the tongue in a Portuguese population. A retrospective cross-sectional study was conducted on patients with a biopsy-proven diagnosis of squamous cell carcinoma of the tongue, who were seen and treated at the Department of Head and Neck Surgery of the Portuguese Institute of Oncology 'Francisco Gentil', Lisbon, Portugal, during a 3-year period. Several factors were examined: gender, use of removable dentures, age, location of the lesion, and alcohol and tobacco consumption. One hundred and six cases were selected from the initial 151 cases, with a male:female ratio of 3:1 and the lateral borders being the most commonly affected site. The prevalence in both genders was between the sixth and seventh decade of life. Men were more likely to consume alcohol and tobacco than women, and no relationship was observed between denture use and presence of carcinoma of the tongue. In light of the data obtained, it may be considered that female use of a denture plays an important role, but it cannot be identified as a remarkable etiologic factor.

Aplicación del conocimiento y factores críticos auto percibidos sobre el diseño de prótesis parciales removibles en estudiantes del 5to curso de Odontología del año 2010 / Application of knowledge and perceived self-critical factor in the design of removable partial dentures in the 5th grade students of Dentistry in 2010

La población adulta sufre de afecciones dentarias en un porcentaje mayoritario, lo que aumenta los requerimientos de prótesis; que seguirán siendo sostenidos en las próximas décadas y todavía por motivos muchas veces de índole económica, la principal tarea del odontólogo será realizar adecuadas prótesis parciales removibles para rehabilitarlos y prevenir la edentación total. Una de las causas del fracaso de las prótesis parciales removibles es el diseño inadecuado; sin embargo un elevado porcentaje de profesionales no asume la responsabilidad del mismo y delega esta función al técnico de laboratorio que fabrica la estructura metálica sin tener la información necesaria referente a las condiciones de la boca que se está tratando. Los principios del uso y diseño de una prótesis parcial removible son algo que todo odontólogo de práctica general debe conocer y es responsabilidad de toda universidad el asegurarse que sus alumnos aprendan estos conceptos. Por ello se planteó éste trabajo cuyo objetivo fue evaluar la aplicación de conocimientos y factores críticos auto percibido en estudiantes del 5º curso de Odontología del año 2010; con el propósito de reforzar los conocimientos fomentando una mayor aplicabilidad durante la formación del estudiante. El estudio fue observacional descriptivo, se aplicó un cuestionario auto administrado a 38 alumnos y se les pidió diseñar una prótesis parcial removible a mano en 4 modelos de yeso de acuerdo a las variantes de Kennedy. Se observó que el estudiante demostró mayor conocimiento en el diseño de la clase III y IV de Kennedy; no así en las clases I y II. Los factores críticos auto percibidos con mayor frecuencia fueron que las horas son insuficiente para las clases destinadas a diseños de prótesis parciales removibles según 84% de los estudiantes y el 97% consideró que sólo algunos profesores están suficientemente motivados a la hora de la enseñanza.

Relationship between squamous cell carcinoma of the anterior two thirds of the tongue and removable denture use: a pioneer study in a Portuguese population

The aim of the study was to determine whether there is any relationship between the presence of removable dentures and squamous cell carcinoma of the anterior two thirds of the tongue in a Portuguese population. A retrospective cross-sectional study was conducted on patients with a biopsy-proven diagnosis of squamous cell carcinoma of the tongue, who were seen and treated at the Department of Head and Neck Surgery of the Portuguese Institute of Oncology 'Francisco Gentil', Lisbon, Portugal, during a 3-year period. Several factors were examined: gender, use of removable dentures, age, location of the lesion, and alcohol and tobacco consumption. One hundred and six cases were selected from the initial 151 cases, with a male:female ratio of 3:1 and the lateral borders being the most commonly affected site. The prevalence in both genders was between the sixth and seventh decade of life. Men were more likely to consume alcohol and tobacco than women, and no relationship was observed between denture use and presence of carcinoma of the tongue. In light of the data obtained, it may be considered that female use of a denture plays an important role, but it cannot be identified as a remarkable etiologic factor.

O objetivo deste estudo foi determinar se existe alguma relação entre o uso de prótese removível e o carcinoma escamoso dos dois terços anteriores na população portuguesa estudada. Um estudo retrospectivo foi conduzido em paciente com diagnóstico anatomopatologico de carcinoma escamoso dos dois terços anteriores, diagnosticados no Instituto Português de Oncologia, Francisco Gentil, Lisboa desde 1 de Janeiro de 2001 até 31 de Dezembro de 2003. Diferentes fatores foram analisados: o gênero, uso de prótese removível, idade, localização, álcool e tabaco. Dos 151 casos iniciais de carcinoma, foram selecionados 106 casos mostrando numa proporção de 3:1 (masculino/feminino). Os bordos laterais foram a localização mais comum e a prevalência em ambos os sexos sitou-se entre a sexta e a sétima década. A presença de álcool e tabaco foi significativamente mais comum nos homens não se observando relação entre o uso de prótese e a presença do carcinoma na língua. Não se observou relação estatística entre o uso de prótese removível e o carcinoma escomoso dos dois terços anteriores da língua. Face aos resultados, o uso de prótese no sexo feminino desempenha um papel importante ainda que não possa ser considerado um fator etiológico significativo.

Tooth-related risk factors for periodontal disease in community-dwelling elderly people.

OBJECTIVE: While most previous epidemiological studies have focused on subject-level risk factors for periodontal destruction, tooth-related factors have not been fully explored. The purpose of this study was to evaluate both tooth-related and subject-related factors affecting periodontal disease progression using a two-level multilevel model. MATERIAL AND METHODS: A longitudinal survey over a period of 10 years was carried out on 286 community-dwelling elderly subjects aged 70 years at baseline. Clinical attachment level (CAL) was measured at six sites per tooth on all teeth present and periodontal disease progression was defined as CAL> or =3 mm. RESULTS: Periodontal disease progression was found in 79% of the subjects and most frequently in maxillary molars. Multilevel logistic regressions revealed that subjects wearing removable dentures were significantly at risk for periodontal disease progression. Abutment teeth for removable/fixed dentures were also significantly more likely to suffer periodontal breakdown. Furthermore, the following tooth-related variables were found to be possible risk factors for periodontal disease progression: maxillary and multirooted teeth. CONCLUSION: Multirooted teeth and abutments for a fixed denture were possible risk factors for periodontal disease progression.

Diferencia del reflejo inhibitorio masetérico en pacientes parcialmente desdentados antes y después del uso de prótesis removible / Difference of the masseteric inhibitory reflex in partially edentulous patients before and after using removable dentures

Se estudiaron 48 sujetos a los que se les elaboraría prótesis parcial removible para ver las diferencias que podrían existir en el reflejo inhibitorio del músculo masetero de acuerdo al tipo de soporte de la prótesis. Se tomó un reflexigrama (RFXG) inicial antes de elaborar la prótesis y un segundo RFXG cuando el paciente se adaptó al uso de la prótesis. Se compararon los reflexigramas iniciales con los finales para ver si existían diferencias entre los dos tipos de prótesis, encontrándose que había mejoría al colocar ambos tipos de prótesis. Para comparar diferencias estadísticas se aplicó la prueba de c2, resultando la mejoría en el lado izquierdo. Estadísticamente significativa (p = 0.05) en ambos tipos de prótesis. Al igual que la mejoría en el lado izquierdo al comparar todas las prótesis superiores. Comparando las demás asociaciones no hubo diferencia estadística significativa. Aunque se apreció mejoría en la morfología del reflejo RFXG en la mayoría de los sujetos, después de colocar las prótesis, ésta se ve más acentuada en el masetero del lado izquierdo, probablemente esto se deba a que del lado derecho la mayoría de los sujetos (83.33 por ciento) tenían un mal RFXG, mientras que del lado izquierdo el 35.41 por ciento lo tenían mal.

Secular trends of dental status in five 70-year-old cohorts between 1971 and 2001.

OBJECTIVE: The aims of this study, which are part of the gerontological and geriatric population studies in Göteborg, Sweden (H70), were to describe cohort differences and trends in dental status and utilization of dental care in 70-year-olds. The study is based on five cohorts examined in 1971/72, 1976/77, 1981/82, 1992/93 and 2000/01 (called cohort I, II, III, V and VI, respectively). The total number of participants was 2290 and varied between 386 and 583 in the different cohorts. The proportion of dentate 70-year-olds changed gradually from 49% in the first to 93% in the last cohort. The mean number of teeth in the dentate 70-year-olds was 14 in cohort I and 21 in cohort VI. The proportion of subjects with 20 or more teeth changed from 13% in cohort I, to 20% in cohort III, and to 65% in cohort VI. In cohort I, 76% of the 70-year-olds had some kind of removable denture; 37% in cohort III, but only 17% in cohort VI. About 20% of all 70-year-olds in cohort I reported regular yearly visits to a dentist. The corresponding figures in cohort III and cohort VI were 50% and 80%, respectively. Even though positive cohort trends were observed in all studied subgroups, factors such as low education, smoking, being un-married, having high waist circumference and being physically inactive were negatively associated with dental status at the end of the study period as well as at the beginning.

Risk factors associated with denture stomatitis in the United States.

BACKGROUND: This study reports denture stomatitis (DS) prevalence from a large USA probability sample from the National Health and Nutrition Examination Survey, 1988-1994 (NHANES III). METHODS: Oral examinations were performed on 3450 individuals 18-90+ years of age (mean: 59.2; SD: 0.50 years), 57.7% male and 42.3% female. Multivariable logistic regression models were fitted for DS using sociodemographic, denture quality, blood analytes, alcohol and tobacco use, history of diabetes, and current antibiotic use as covariates. Odds ratios (OR), adjusted for other covariates in each model (AOR) are presented. RESULTS: Of 3450 removable denture wearers, 963 (27.9%) had DS. DS prevalence was associated with wearing maxillary (AOR: 6.20) and mandibular (AOR: 5.21) complete dentures continuously; smoking >/=15 cigarettes day (maxillary complete: AOR = 1.31; mandibular complete: AOR = 1.50; maxillary partial: AOR = 2.04); vitamin A deficiency (mandibular complete: AOR = 5.97; maxillary partial: AOR = 5.67; mandibular partial: AOR = 24.42). Maxillary dentures with inadequate relines had approximately half the OR of DS than those with adequate relines (maxillary complete: AOR = 0.42; mandibular complete: AOR = 0.50). CONCLUSIONS: Denture stomatitis prevalence is associated with the amount of tissue covered by dentures, low vitamin A levels, cigarette smoking, and constant denture wear.

Prosthodontic status among old adults in Pomerania, related to income, education level, and general health (results of the Study of Health in Pomerania, SHIP).

PURPOSE: The aim of the study was to evaluate associations among prosthetic status, socioeconomic factors, and general health of subjects aged 55 to 79 years. The data were taken from the Study of Health in Pomerania (SHIP). MATERIALS AND METHODS: Socioeconomic information (age, sex, education level), medical information (number of diseases), and details on smoking and alcohol consumption were obtained. Prosthetic status in the maxilla and mandible was classified into complete denture (CD), removable partial denture (RPD), > or = 10 natural teeth or teeth replaced with fixed prosthodontics (10T+), and < or = nine natural teeth including fixed prosthodontics (9T-). RESULTS: The data of 1,877 subjects were evaluated. CDs in the maxilla were more frequent than in the mandible. RPDs were more frequent in the mandible and in the group aged 65 to 74 years. Of the individuals with a low education level, 47% had a CD in the maxilla, and only 21% had 10T+. However, of subjects with a high education level, 22% had a CD in the maxilla, and 54% had 10T+. The odds ratio of having a CD in the maxilla increased to 11.9 at the age of 75 to 79 years, compared to 0.6 at the age of 55 to 59 years. Logistic regression analyses showed that the risk of wearing a CD was significantly associated with old age, low education level, low income, smoking, and alcohol abuse, whereas the number of diseases (used as an indicator of general health) was not. CONCLUSION: Alcohol abuse, smoking, low education level, low income, and old age were significant predictors of wearing CDs.

La prótesis parcial removible en la práctica odontológica de Caracas, Venezuela / Removable partial denture in the dental practice of Caracas, Venezuela

Se estudió el diseño de la P.P.R. en la práctica privada a través del análisis de las características de las órdenes de trabajo, tipo de trabajo solicitado por el odontólogo, la forma como los laboratorios dentales reciben los casos y el diseño empleado en la solución del caso; para tal fin se realizaron 434 cuestionarios en 6 laboratorios comerciales de Caracas; los diseños empleados en la solución de los casos fueron comparados con los datos obtenidos de 137 casos de P.P.R., realizados en el pregrado de la Facultad de Odontología de la U.C.V. Se evidenció que en el ejercicio privado existe una tendencia a exagerar la delegación de funciones en P.P.R., el diseño de la prótesis en la mayor parte de los casos está a cargo del técnico de laboratorio; el tipo de trabajo solicitado con mayor frecuencia es la P.P.R., con estructura metálica retenida por ganchos; existen discrepancias en la filosofía del deseño de retenedores directos para la P.P.R. a extensión distal; finalmente se ratifica la importancia de estudios de este tipo para proveer información a los programas de pregrado, postgrado y educación continua

Necesidades protésicas de los pacientes que asisten a la Facultad de Odontología de la U.C.V / Prosthetic needs of patients attending the School of Dentistry, U.C.V

En el presente Trabajo se estudian las necesidades protésicas de 1107 pacientes que asisten a la Facultad de Odontología de la U.C.V. en el período enero-febrero de 1995, con el objetivo de analizar la distribución por tipo de prótesis, edad y sexo. El 66.7 por ciento de la población estudiada requiere de algún tipo de prótesis dental; la mayor concentración de necesidades protésicas se encuentra en el sexo femenino y en la edad comprendida entre los 25 y 44 años; la mayor parte de la demanda la constituyen las prótesis parciales removibles, seguidas por la prótesis fija y en menor proporción la prótesis total. Los datos obtenidos coinciden con los datos de estudios previos como lo es el E.P.I.O. 1972, por lo que es evidente que las condiciones de salud bucal no han variado en las últimas décadas, esto posiblemente debido a las características de la atención odontológica del país, donde se ha observado una desigual distribución de la atención en base a los estratos sociales, la carencia de políticas de salud efectivas y donde predomina un modelo de atención curativo

Consideraciones periodontales en el diseño de prótesis parciales removibles. Parte 1 / Periodontal considerations in the design of removable partial dentures. Part 1

Se presenta una revisión de la literatura referente a la prótesis parcial removible sobre los tejidos periodontales y las consideraciones en el diseño de cad uno de los elementos constituyentes. Se concluye que el control de la placa y los programas de mantenimiento son los factores fundamentales para la conservación de los tejidos remanentes, objetivo principal de toda restauración protésica; en tal sentido, también es importante considerar el control de la cobertura del tejido periodontal por alguna parte de la P.P.R. y la fuerza oculsal transmitida a las estructuras de soporte

Keratinization of palatal mucosa beneath metal-based removable partial and acrylic-based complete dentures compared with normal palatal mucosa: a clinical, cytological and histological study.

Normal human palatal epithelium is an orthokeratinizing tissue with a well-developed stratum corneum. Several cytological and histological studies showed that when the palate covered by a denture fully or partially, keratinization of the mucosa changes. The results of some studies suggested that keratinization changes from orthokeratosis to parakeratosis, and there is a reduction in the thickness of stratum corneum. Whereas the results of some other studies showed increased orthokeratinization. This study was planned to determine changes in keratinization of palatal mucosa in denture wearers compared with normal palatal mucosa. Keratinization of palatal mucosa was examined by mainly exfoliative cytology in three groups. Group-1 consisted of 51 patients wearing metal-based removable partial denture; group-2 consisted of 50 patients wearing acrylic-based complete denture and group-3 including 57 healthy volunteers who have not been wearing denture served as the controls. In each group, the results of exfoliative cytology were supported by histological examinations. Statistical results showed that either acrylic-based complete or cobalt-chromium-based removable partial dentures seem to reduce the quantity and/or quality of the keratin layer. The mean values of keratinization and the thickness of stratum corneum were significantly lower in the complete denture group than in the partial denture group. Furthermore the reliability of exfoliative cytology was confirmed by the guidance of histological examination.

Prótesis parcial removible con eje rotacional de inserción / Dental prothesis removable with rotational axis of insertion

La PPR con eje rotacional de inserción, es una prótesis dentosoportada que se asienta en la boca con un punto de apoyo y mediante un movimiento rotatorio provoca el asentamiento del resto de la prótesis, permitiendo que un elemento rígido de la estructura metálica actúe como un elemento retentivo ubicado en la cara proximal del diente adyacente a la brecha adéntula; la aplicación de éste diseño se limita a casos dentosoportados, clase III y IV de Kennedy. El hecho de obtener soporte, estabilidad y retención en un área del arco parcialmente edéntulo sin la necesidad de utilizar retenedores extracoronales provee beneficios: biológicos, mecánicos y estéticos considerables. Es considerado un diseño técnico sensitivo, pero éste factor puede ser controlado si existe una adecuada planificación y buena comunicación con el técnico dental

Procedimentos para reabilitaçäo em pacientes com desgaste dental acentuado / Procedures to rehabilitate extremely worn dentition

Os autores relatam um caso clínico em que há desgaste e conseqüente diminuiçäo da dimensäo vertical de oclusäo (D.V.O.). Säo discutidos os possíveis fatores etiológicos e a avaliaçäo inicial do paciente. A D.V.O. é restabelecida através do método fonético e da utilizaçäo de placas estabilizadoras. No tratamento definitivo, säo realizadas próteses fixas metalo-cerâmicas e próteses removíveis, mantendo-se o relacionamento maxilo-mandibular obtido inicialmente