Ahuja Vipin, Verma Jaya, Bhargava Ankur, Choudhary Anand
Department of Pedodontics and Preventive Dentistry, Hazaribag College of Dental Sciences & Hospital, Hazaribagh, Jharkhand, India.
Department of Oral and Maxillofacial Pathology, Hazaribag College of Dental Sciences & Hospital, Hazaribagh, Jharkhand, India.
Int J Clin Pediatr Dent. 2022 Nov-Dec;15(6):779-783. doi: 10.5005/jp-journals-10005-2474.
This case report aims to present triple tooth synodontia of primary teeth and its management.
Synodontia refers to the fusion of teeth and is a morphological developmental dental aberration. This anomaly is also acknowledged with different terminologies like fusion, germination, and concrescence. Synodontia with two teeth is not uncommon however it is found sporadic in primary dentition. This type of anomaly can include two or more teeth; if the number is two, it is called as double tooth and if three, is called as triple tooth or triplication defect or triploid tooth.
In this article, we report an unusual case of triplication of primary teeth occurring unilaterally between the upper deciduous right central, lateral incisor and supernumerary tooth. The triple tooth was extracted under local anesthesia and was sectioned at three levels that are coronal, middle, and cervical one-third, and analyzed by Cone-beam Computerized Tomography (CBCT) respectively. The coronal segment revealed three individual pulp chambers, middle third and apical third revealed one single unified pulp chamber.
Triple tooth in a triangular configuration with mixture of incomplete fusion at the coronal portion and cervical third and complete fusion at middle and apical third of root is an elusive anomaly.
This aberrant fusion of two deciduous incisors with supernumerary tooth had been documented as rare anomaly, so its early diagnosis and management protocol is imperative to comprehend.
Ahuja V, Verma J, Bhargava A, "Triple Tooth Synodontia" of Primary Incisors in Triangular Configuration: A Rare Aberrant Case Report. Int J Clin Pediatr Dent 2022;15(6):779-783.
本病例报告旨在介绍乳牙的三牙融合及其治疗方法。
融合牙是指牙齿的融合，是一种形态学上的牙齿发育异常。这种异常也有不同的称谓，如融合、双生牙、结合牙。两颗牙齿融合并不罕见，但在乳牙列中较为散在。这种异常可涉及两颗或更多牙齿；若为两颗，则称为双生牙；若为三颗，则称为三牙融合或三倍体牙或三重复畸形牙。
在本文中，我们报告了一例罕见病例，右上乳中切牙、乳侧切牙与多生牙之间单侧出现三牙融合。在局部麻醉下拔除该三牙融合牙，并在冠部、中部和颈部三分之一处进行切片，分别采用锥形束计算机断层扫描（CBCT）进行分析。冠部切片显示三个独立的牙髓腔，中部和根尖三分之一处显示一个单一的统一牙髓腔。
呈三角形排列的三牙融合，在冠部和颈部三分之一处不完全融合，而在牙根中部和根尖三分之一处完全融合，是一种难以捉摸的异常情况。
两颗乳切牙与多生牙的这种异常融合已被记录为罕见异常，因此其早期诊断和治疗方案至关重要。
Ahuja V, Verma J, Bhargava A, “三角形排列的乳牙‘三牙融合’：一例罕见异常病例报告”。《国际临床儿科牙科学杂志》2022；15(6):779 - 783。
