Prosthodontic management of a Siebert Class III defect in mandibular anterior region with a modified Andrew's bridge

Abstract

The absence of teeth most often has a significant impact on the function, esthetics, and thus the psychological condition of the patients. Residual ridge resorption is most common in mandibular anterior region which poses a challenging task to the restoring dentist. Several factors should be taken into consideration before diagnosing and formulating a treatment plan. Andrew's bridge is a fixed, removable partial denture which is mostly indicated in cases where the abutment teeth are capable of supporting a fixed partial denture but the residual ridge defect in the edentulous area where a conventional fixed partial denture may not adequately restore the patient's missing teeth and the supporting structures. The purpose of this article is to describe the management of a Siebert Class III residual ridge defect with a modified Andrew's bridge using a bar attachment and a cast metal removable partial denture. Clinical Relevance to Interdisciplinary Dentistry Siebert Class III condition is most prevalent and most difficult to restore as there is severe ridge defect both vertically and horizontally. Andrew's bridge with an interdisciplinary approach results in the improvement of the aesthetic and functional aspects as well as quality-of-life of the patient.