Arora Pallak, Nair Madhu K, Liang Hui, Patel Paras B, Wright John M, Tahmasbi-Arashlow Mehrnaz
Department of Diagnostic Sciences, Texas A&M University School of Dentistry, Dallas, TX, USA.
Baylor University Medical Center, Dallas, TX, USA.
Imaging Sci Dent. 2023 Sep;53(3):229-238. doi: 10.5624/isd.20230040. Epub 2023 Jun 20.
Ectopic eruption can be defined as the emergence of a tooth in an abnormal location, where the tooth does not follow its typical eruption pathway. While ectopic eruption within the dentate region is well-documented in the literature, ectopic eruption in non-dentate regions is relatively rare. This study aimed to report 6 cases of ectopic teeth and present a systematic review of the English-language literature on ectopic teeth, emphasizing demographic characteristics, radiographic features, potential complications, and treatment options.
A literature search was conducted using the PubMed, Medline, Web of Science, and Cochrane databases. The demographic data and radiographic findings of patients presenting with ectopic teeth were recorded.
The literature review yielded 61 cases of ectopic teeth, with patients ranging in age from 3 to 74 years. The findings from these previously reported cases demonstrated that the most common location for ectopic teeth was the maxillary sinus, which is consistent with this case series. The Pearson chi-square test was performed to evaluate the correlation between age and location of ectopic teeth, and the results were found to be statistically significant (<0.05). However, no statistically significant relationship was observed between sex and the location of ectopic teeth.
The distinct features of these cases warrant reporting. This study presents the first case of supernumerary teeth in the condyle without any associated pathosis. Another notable characteristic is the pre-eruptive resorption of 2 inverted supernumerary teeth ectopically located in the palate, which predisposes to sinus opacification.
异位萌出可定义为牙齿在异常位置萌出，即牙齿未遵循其典型的萌出路径。虽然文献中对牙列区域内的异位萌出有充分记载，但非牙列区域的异位萌出相对少见。本研究旨在报告6例异位牙病例，并对英文文献中关于异位牙的研究进行系统综述，重点关注人口统计学特征、影像学特征、潜在并发症及治疗选择。
使用PubMed、Medline、科学网和Cochrane数据库进行文献检索。记录出现异位牙患者的人口统计学数据和影像学检查结果。
文献综述共纳入61例异位牙病例，患者年龄范围为3至74岁。这些既往报道病例的结果表明，异位牙最常见的位置是上颌窦，这与本病例系列一致。进行Pearson卡方检验以评估异位牙的年龄与位置之间的相关性，结果具有统计学意义（<0.05）。然而，未观察到性别与异位牙位置之间存在统计学显著关系。
这些病例的独特特征值得报告。本研究呈现了首例髁突多生牙且无任何相关病变的病例。另一个显著特征是位于腭部的2颗倒置多生牙在萌出前发生吸收，这易导致鼻窦混浊。
