Análise in vivo da adaptação de apoios em prótese parcial removível.
A confecção das Próteses Parciais Removíveis (PPR) na Universidade tem como orientação a adequação às necessidades dos
pacientes, ao mesmo tempo em que proporciona aos alunos um aprendizado voltado para a qualidade do trabalho protético. O
objetivo desse trabalho foi avaliar a adaptação dos apoios de PPR nos seus respectivos nichos, executados por 20 alunos da
Disciplina de PPR da Faculdade de Odontologia da UFF, utilizando como método a moldagem do descanso sob o apoio. Foram
selecionados na Clínica da FO-UFF, 20 pacientes num total de 36 arcos a serem reabilitados com PPR cujo planejamento in-
cluísse descansos em pré-molares e molares. Os preparos (n=100) com dimensões de 1/3 da largura vestíbulo-lingual do dente
e profundidade 1,2 mm. As armações metálicas (Co-Cr) foram confeccionadas por único laboratório. Após a prova e ajustes,
seguiu-se o registro da adaptação dos apoios com moldagem do descanso com silicona de condensação de baixa densidade. Re-
movidos os excessos e examinados quanto a integridade com lupa foram obtidas imagens em microscópio óptico de cada corpo
de prova. A presença de pelo menos uma perfuração no molde do nicho foi um indicativo de que houve adaptação do apoio
no nicho. Observou-se que 78% dos moldes avaliados apresentavam perfurações, sendo que 35% delas ocorreram na borda do
apoio, 3% no corpo do apoio e 40% em ambos. Os apoios desadaptados em número de 22 apresentaram uma média de 0,11 e
desvio padrão de 0,88 entre os alunos. Os resultados mostram prevalência de adaptados e refletem a aprendizagem dos alunos.
palavras-chave: Prótese Parcial Removível, Preparo do Dente, Instituições Acadêmicas, Ensino, Materiais para Moldagem
Odontológica.
palavras-chave: Prótese Parcial Removível, Preparo do Dente, Instituições Acadêmicas, Ensino, Materiais para Moldagem
Odontológica.
AbsTRACT
Fabrication of Removable Partial Dentures (RPD) at the University is guided by meeting the needs of patients and simultaneously
providing students with an opportunity to learn with emphasis on the quality of the prosthetic work. The aim of this study was
to evaluate the fit of RPD rests in their respective niches, performed by 20 students of the RPD Course at the UFF School of
Fabrication of Removable Partial Dentures (RPD) at the University is guided by meeting the needs of patients and simultaneously
providing students with an opportunity to learn with emphasis on the quality of the prosthetic work. The aim of this study was
to evaluate the fit of RPD rests in their respective niches, performed by 20 students of the RPD Course at the UFF School of
Dentistry, using the method of casting beneath the RPD rest on the retentive niche. At the FO-UFF Clinic, 20 patients were
selected, representing a total of 36 dental arches to be rehabilitated with RPDs, whose planning would include RPD rests in
premolars and molars. The dimensions of preparations (n=100) were 1/3 of the vestibular-lingual width of the tooth and depth of
1.2 mm. Metal frameworks (Co-Cr) were fabricated by a single laboratory. Try-in and adjustments were followed by registering
the fit of the RPD rests by preparing casts of the retentive niches with low density condensation silicone. After excesses were
removed and integrity was examined using a loupe, images of each test specimen were obtained by optical microscope. The
presence of at least one perforation in the cast of the niche was an indication that the RPD rest fitted into the niche. It was
observed that 78% of the casts evaluated presented perforations, with 35% of these occurring at the niche margin, 3% in the body
of the niche and 40% in both sites. The 22 misfitting niches presented a mean of 0.11 and standard deviation of 0.88 among the
students. The results showed prevalence of fitting, and reflected student learning.
Keywords: Removable Partial Denture, Tooth Preparation, Academic Institutions, Teaching, Dental Casting Materials.
selected, representing a total of 36 dental arches to be rehabilitated with RPDs, whose planning would include RPD rests in
premolars and molars. The dimensions of preparations (n=100) were 1/3 of the vestibular-lingual width of the tooth and depth of
1.2 mm. Metal frameworks (Co-Cr) were fabricated by a single laboratory. Try-in and adjustments were followed by registering
the fit of the RPD rests by preparing casts of the retentive niches with low density condensation silicone. After excesses were
removed and integrity was examined using a loupe, images of each test specimen were obtained by optical microscope. The
presence of at least one perforation in the cast of the niche was an indication that the RPD rest fitted into the niche. It was
observed that 78% of the casts evaluated presented perforations, with 35% of these occurring at the niche margin, 3% in the body
of the niche and 40% in both sites. The 22 misfitting niches presented a mean of 0.11 and standard deviation of 0.88 among the
students. The results showed prevalence of fitting, and reflected student learning.
Keywords: Removable Partial Denture, Tooth Preparation, Academic Institutions, Teaching, Dental Casting Materials.