Abstract
Use of attachment in providing retention to removable prosthesis is an old treatment modality with better success. It highly improves the comfort, aesthetic, function, and patient satisfaction, especially in the patients with long span edentulism where implants and fixed partial denture (FPD) are not indicated and cast partial dentures are barely satisfactory. Proper diagnosis and treatment planning is necessary for selection of appropriate attachment type. A comprehensive evaluation, multi-disciplinary approach and sequential treatment planning is needed for long-term successful outcome. This case report describes the use of an extra coronal semi-precision attachment to enhance retention of removable prosthesis.
Highlights
Precision attachment is an interlocking device, one component of which is fixed to an abutment and the other is integrated into a removable partial denture to stabilize and/or to retain it.[1]
A SemiPrecision attachment is fabricated by the direct casting of plastic, wax, or refractory patterns
Semi-precision attachment is fabricated by direct casting of plastic wax or refractory pattern
Summary
Precision attachment is an interlocking device, one component of which is fixed to an abutment and the other is integrated into a removable partial denture to stabilize and/or to retain it.[1] A precision attachment is fabricated from milled alloys and are generally intracoronal and non-resilient, and have standard, interchangeable parts.[2] A SemiPrecision attachment is fabricated by the direct casting of plastic, wax, or refractory patterns. They are considered “semi-precision” since in their fabrication they are subjected to inconsistent water/powder ratios, burn out temperatures and other variables. Prosthesis, which permitted a certain amount of movement between the two sections of the prosthesis that acts as a non-rigid stress breaker and helped in distributing the occlusal load
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