Análise in vivo da adaptação de apoios em prótese parcial removível.
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
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.