Bilateral fusion of mandibular second molars with supernumerary teeth: case report

Abstract

Fusion is a developmental anomaly characterized by the union of two adjacent teeth. In this article we report a rare case of bilateral fusion of permanent mandibular second molars with supernumerary teeth. The rarity with which this entity appears, along with its complex characteristics, often make it difficult to treat. The endodontic management of one tooth is described, as well as the successful treatment of a periradicular lesion.

Endodontic Treatment of an Unusual Maxillary Molar Tooth Fused with a Paramolar: Case Report

“…20 Füzyonun süpernumere bir diş ve daimi bir diş arasında görülme sıklığı %0,1'dir ve bu durum anterior dişlerde görülmektedir. 7,21,22 Birleşme zamanına bağlı olarak füzyonlu dişlerde pulpa kanalları birleşik veya ayrılmış olabilmektedir. 11 Bu olguda paramolar diş bukkalde ve tamamı belirgin şekilde füzyona uğramış ve kök kanalları apikale yakın kısımdan bağlantılı olduğu görülmüştür.…”

Diagnostic Dilemma of a Double Tooth: A Rare Case Report and Review

“…Despite the fact that surgical therapy may be necessary in some cases, a thorough knowledge of the complexity of root canal morphology, in addition to adequate operative procedures, appear to be the main requirements for successful endodontic treatment of these dental abnormalities [15]. Operating microscopes have been used as an important tool for better diagnosis and better quality of care along with conventional radiograph [16].…”

Fusion/Double Teeth

“…Fused teeth arise through union of two normally separated tooth germ and depending upon the stage of tooth development of teeth and at the time of union it may be either complete or incomplete. 10,13,14 Tannebaum and Alling 2 described a phenomenon of gemination and twinning. A suggested scheme of classification is as follows:…”

“…It is more common in anterior mandibular segment. [9][10][11][12][13][14][15][16] Our both cases were unilateral and involving anterior segment. Although the term 'double teeth' as suggested by Miles in 1954 is widely accepted and may be more appropriate.…”