锥形束计算机断层扫描对埋伏正中多生牙的评估

Cone Beam Computed Tomography Evaluation of Inverted Mesiodentes.

作者信息

Al-Sehaibany Fares S, Marzouk Hazem M, Salama Fouad S

机构信息

Department of Pediatric Dentistry and Orthodontics, College of Dentistry, King Saud University, Riyadh, Saudi Arabia.

Department of Maxillofacial Radiology, Faculty of Dentistry, Cairo University, Egypt; and assistant professor, Department of Oral Medicine and Diagnostic Sciences, College of Dentistry, King Saud University, Riyadh, Saudi Arabia.

出版信息

J Dent Child (Chic). 2016;83(2):88-93.

PMID:27620520

Abstract

A mesiodens is the most common type of supernumerary teeth. The purpose of this report is to present a rare occurrence of non-syndromic impacted inverted mesiodentes in an 8.5-year-old boy who presented with a chief complaint of delayed eruption of his permanent maxillary left central incisor. Occlusal and panoramic radiographs, as well as cone beam computed tomography (CBCT) with a three-dimensional (3-D) reconstruction image, confirmed that one supernumerary tooth had perforated the nasal fossa floor and the other was in close approximation to the to the same site. Surgical removal of both mesiodentes was indicated. Radiographic evidence of complete healing was observed 12 months following surgical removal. The use of CBCT with a 3-D reconstruction image as a tool in diagnosis and evaluation of healing after surgical removal is recommended.

摘要

正中多生牙是最常见的多生牙类型。本报告的目的是呈现一例罕见的非综合征性埋伏倒置正中多生牙病例，患者为一名8.5岁男孩，主要诉求是上颌左侧恒中切牙萌出延迟。咬合片和全景片，以及带有三维（3-D）重建图像的锥形束计算机断层扫描（CBCT）证实，一颗多生牙已穿破鼻窝底部，另一颗与同一部位紧密相邻。建议手术拔除两颗正中多生牙。手术拔除12个月后观察到完全愈合的影像学证据。推荐使用带有3-D重建图像的CBCT作为手术拔除后诊断和评估愈合情况的工具。