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