ABSTRACT
The presence of dens invaginatus (DI) and dens evaginatus (DE) on same tooth is a rare phenomenon. However, when these dental anomalies occur on a double tooth, it becomes an extremely rare phenomenon. The authors report a rare case of DI and DE on fused permanent maxillary central incisor with supernumerary tooth in a 40‑year‑old male. The present article also focuses on the differentiating fusion from gemination and also reviews preventive and management strategies for tooth with complex dental anatomy.
ABSTRACT
The term double tooth corresponds to a binding dental anomaly and refers, therefore, to two teeth together, and includes gemination and fusion. Gemination is an attempt to divide a developing germ, without affecting the final number of pieces. Fusion is the pre-eruptive or embryological union of two adjacent tooth germs, resulting in a piece down in the formula of the arcade hit. Both anomalies show similar clinical features and can occur in both dentitions. This report presents a case of double tooth in mandibular anterior dentition, with diagnosis of dental fusion in a 4 years old patient, explains the features of the case and finally identifies the importance of differential diagnosis between fusion and gemination as pathological entities of similar clinical presentation which according to the literature, can involve almost the same teeth, with potential effects on permanent dentition.
Subject(s)
Humans , Male , Child, Preschool , Tooth, Deciduous , Fused Teeth/diagnosis , Fused Teeth/therapyABSTRACT
Purpose: Synodontia or fusion is a developmental anomaly of shape of tooth formed by union of two independently developing primary or secondary teeth. Prevalence of tooth fusion is estimated at 0.5-2.5% in the primary dentition and less in permanent dentition. The bilateral type of fusion in the primary dentition is rare and is about 0.02%. This paper describes a rare case of bilateral fusion of primary mandibular lateral and canine teeth. Case description: An 8 year old girl had a complaint of unusually large sized teeth in her mandible. After physical examination and use of periapical radiographs and study models bilateral fused teeth in the mandibular lateral incisor and canine region was diagnosed. Conclusion: The bilateral fusion of primary mandibular lateral and canine teeth is a rare condition and should be carefully evaluated to diagnose any associated pathology.
Objetivo: Sinodontia ou fusão é uma anomalia de desenvolvimento da forma do dente formado pela união de dois dentes decíduos ou permanentes em desenvolvimento de forma independente. A prevalência de fusão dental é estimada em 0,5 a 2,5% na dentadura decídua e menor na permanente. O tipo de fusão bilateral na dentadura decídua é rara e aproximadamente de 0,02%. Este artigo descreve um caso raro de fusão bilateral de dentes decíduos incisivos laterais e caninos inferiores. Descrição do caso: Uma menina de 8 anos de idade tinha uma queixa clínica de dentes de tamanho grande anormal em sua mandíbula. Após exame físico e uso de radiografias periapicais e modelo de estudo, a fusão bilateral de dentes decíduos incisivos laterais e caninos inferiores foi diagnosticada. Conclusão: A fusão bilateral de dentes decíduos incisivos laterais e caninos na mandíbula é uma condição rara e deve ser cuidadosamente avaliada para diagnosticar quaisquer patologias associadas.