Geminated premolar tooth: Report of a rare developmental abnormality and literature review

Gemination is a rare developmental abnormality. This abnormality occurs when one tooth bud attempts to split into two, resulting in a large bifid crown and usually a single root and root canal. The main reason of gemination is unknown. Gemination may be associated with any syndromes or it can be asyndromic. Gemination of premolar teeth is uncommon. The aim of this paper is to describe a rare case of gemination involving a mandibular first premolar, review similar case reports and discuss treatment and care modalities in literature. Our search revealed that only 13 cases of geminated premolar teeth (including supernumerary premolar teeth) were reported in the last 39 years. Proper clinical and radiographic examination, proper oral hygiene education and if needed symptomatic treatment planning is necessary to manage this rare developmental abnormality

Premolar dişte geminasyon: Nadir görülen bir gelişimsel anomali bildirisi ve kaynak derlemes

Geminasyon nadir görülen gelişimsel bir anomalidir. Bir şekil anomalisi olan geminasyon, bir diş tomurcuğu iki bölünmeye çalışıldığında ortaya çıkar ve büyük bir bifid kron ve genellikle tek bir kök ve kök kanalı ile sonuçlanır. Geminasyonun temel nedeni bilinmemektedir. Geminasyon sendromlarla ilişkili olabilir ya da olmayabilir. Premolar dişlerin geminasyonu nadirdir. Bu yazının amacı; mandibuler birinci premolar dişte nadir görülen bir geminasyon olgusunu tanımlamak, literatürdeki benzer vaka raporlarını incelemek ve tanı seçenekleri ile tedavi yöntemleri hakkındaki güncel kaynakları değerlendirmektir. Araştırmamız, son 39 yılda premolar dişte geminasyon ile ilgili sadece 13 tane olgu sunumu olduğunu (süpernümere premolar dişler dahil) ortaya çıkardı. Bu nadir görülen dental anomaliye yaklaşımda doğru klinik ve radyografik muayene ile oral hijyen eğitimi ve semptomatik tedavi planlaması gereklidir.

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