Rehabilitation using semi-precision attachment in fixed partial denture

Abstract

The desire to balance between functional stability and cosmetic appeal in partial dentures gave rise to the development of precision attachments, since then, precision attachments have always been surrounded by an aura of mystery. A 35-year-old patient reported a chief complaint of missing upper anterior teeth and wants their replacement. Examination revealed the congenitally missing first and second premolars in the maxillary arch bilaterally, and canines were at first premolar place, which were brought there orthodontically. The patient was planned for 5-unit fixed partial denture from lateral incisor to first molar with semi-precision attachment distal to canine bilaterally, and canines were decided to be converted into the first premolar bilaterally. In this case, it was decided to use the semi-precision attachment and it was procured from Sterngold company, USA. Semi-precision attachments are used to reduce the detrimental stresses and excessive torque on pier abutment, thereby maintaining its health. The decision to use precision attachments in partial denture design should be carefully considered. It is alright to consider such sophistication where the facilities for this precise laboratory work and knowledge of using semi-precision attachment are available.