Open AccessAssessment of the structural components of removable partial dentures
Author(s) -
Jefferson Ricardo Pereira,
Saulo Pamato,
Danielle Afonso,
Tássia Freitas
Publication year - 2015
Publication title -
journal of research in dentistry
Language(s) - English
Resource type - Journals
ISSN - 2317-5907
DOI - 10.19177/jrd.v2e62014467-473
Subject(s) - dentures , removable partial denture , dentistry , prosthesis , orthodontics , materials science , retainer , medicine , composite material , surgery
AIM: The aim of this study was to assess the mechanical and planning failures of the structural components of tooth-supported and tooth-mucosa-supported removable partial dentures (RPDs). MATERIAL AND METHODS: We evaluated the following components of fifty removable partial dentures: direct retainers (niche, support, retention arm, opposition arm, position on the abutments, type of retainers selected), indirect retainers (position, necessity, and niche), acrylic saddle, major connector, insertion axis and interference of muscles and nerves, which were classified into adequate and inadequate. RESULTS: There was a statistically significant difference between tooth-supported and tooth-mucosa-supported dentures when the major connector was considered. CONCLUSION: The major component failures were the following, in descending order: maintenance of the prosthesis, niche, insertion axis, and acrylic base.