This articlepresents a case in which rigid attachments were used as a mode of retention keepingin mind patients esthetics, function and financial conditions.
Patient nameGirjamma, 38 years old presents with the chief complain of missing maxillaryanterior teeth (11,12,21) and posterior teeth (15,16,17,26,27) due to caries which were extracted 6 monthsago. On intraoral examination periodontal condition of remaining teeth werefound to be good. Treatment planning of anterior 9 unit FPD considering 6 abutmentteeth with attachment supported CPD was made depending on patient financialcondition. Diagnosticimpressions were made using alginate (3M ESPE) and poured using type 3 gypsum product (Kalabhai Kalstone).
Diagnosticmaxilla mandibular relation was recorded and casts were articulated. Wax pattern with acrylic teeth for anterior FPD wastried in patient mouth for approval.Afterconsent from patient crown preparation were done i.r.t 13, 14, 22, 23, 24, 25followed by gingival retraction using foam cord and compri cap was done andfinal impression made using monophase silicone impression material. Temporarybridge was given on the same day using Protemp temporary material.
Metal framework try-in with Rhein83 attachments was done in patient mouth and after proper shade selection final porcelain build up on framework was done. Uponbisque try in of framework zenith marking intra orally for pink porcelainbuild-up was done using lead pencil .Frameworkpick-up was done for fabrication of CPD framework. Anterior FPD was cementedusing GIC cement and CPD framework try in was done followed by jaw relationrecord with the framework. CPD try in was done and final CPD insertion with wasdone.
Discussion In present case Rhein 83 (OT Cap)attachment were used. With cases involving edentulous saddles, resiliency canbe controlled with a wide range of retentive caps that have various levels ofelasticity and retention.OT Cap is a resilient distal extension attachment. It is indicatedto be used with combined prostheses and removable partial dentures. Fortreatment plans that require a rigid substructure with milling and adequatecounter attachments, OT Cap functions as a stabilizing retentive connector.
Inaddition, for treatment plans which require resiliency, OT Cap provides a”Cushion Effect” similar to a shock absorber. This is achieved by the design ofthe sphere in conjunction with the elastic retentive caps.