Acrylic r esin RPDs<br />Attachments for RPDs<br />Swing – lock RPDs<br />
Acrylic resin RPDs<br />Materials that are fl exible and intended to fit into tooth and soft - tissue undercuts.<br />Used after an immediate extraction in which a patient requires stabilization and function during the healing phase of therapy.<br />The resin removable partial denture also is designed to restore appearance until a definitive prosthesis can be fabricated<br />
Interim removable partial denture with anterior prosthetic teeth- nos. 9 &10.<br />Teeth on the cast have been designated for removal prior to fabrication of the immediate transitional RPD.<br />The wax - up showing replacement of teeth nos. 23 – 26 on the immediate transitional RPD.<br />Interim RPD, occlusal view shows wire clasps for retention on bilateral second premolars.<br />
Attachments for RPD s<br />Intracoronalattachments:<br />Intracoronal attachments can help obtain esthetic results when used in lieu of traditional.<br />
Cont…<br />2. Extracoronal attachments:<br />They are equally as esthetic as intracoronal attachments, but unlike intracoronal attachments, they have the ability to provide more resilience as a stress.<br />
Cont…<br />3. Overdentureattachments<br />They are used to treat partially edentulous patients according to 3 general categories: posterior edentulous areas, anterior edentulous areas, and interim prostheses.<br />
Swing – lock RPDs<br />Few remaining natural teeth for a conventional RPD <br />Periodontallycompromised natural teeth.<br />Remaining natural teeth in poor position to support a conventional RPD.<br />Excessive alveolar bone loss either through traumatic injury or surgical intervention.<br />
Cont…<br />The vertical projection arms of the labial arm of a swing - lock removable partial denture can compromise overall esthetic results during speech.<br />Five mandibular anterior natural teeth provide too few remaining teeth for a conventional extracoronalclasp - retained removable partial denture.<br />
Thank you<br />Reference <br />Removable Partial Dentures A Clinician’s Guide John D. Jones<br />Alternative Removable Partial Dentures …. ch-6<br />
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