Celikten Berkan, Orhan Kaan, Aksoy Umut, Tufenkci Pelin, Kalender Atakan, Basmaci Fatma, Dabaj Pervin
Ankara University, Faculty of Dentistry, Department of Endodontics, Ankara, Turkey.
Ankara University, Faculty of Dentistry, Department of Dentomaxillofacial Radiology, Ankara, Turkey.
BDJ Open. 2016 Jan 29;2:15006. doi: 10.1038/bdjopen.2015.6. eCollection 2016.
Because of economic and political issues, Turkish Cypriots have been emigrating from Cyprus since the 1920s, especially to the United Kingdom, other European countries and Australia. Recently, according to the UK House of Commons, Home Affairs Committee, ~300,000 Cypriot Turks were living in the United Kingdom. However, this ethnic population residing in the United Kingdom has been insufficiently analysed. Although many Turkish Cypriots have been living abroad, little is known about the dental characteristics of this group. Premolar teeth, especially maxillary premolars, pose great challenges in endodontic treatment because of the number of roots and canals, and the variation in the configurations of the pulp cavity. Thus, it was considered valuable to determine the morphological characteristic of premolar teeth in a Turkish Cypriot population to aid clinicians in performing endodontic treatment in this ethnic population.
The sample for this cross-sectional study consisted of a retrospective evaluation of cone-beam CT scans of 263 adult patients (age range 16-80 years). The number of roots and their morphology, the number of canals per root and the canal configuration were examined. The root canal configurations were also classified according to the scheme of Vertucci in the maxillary and mandibular premolar teeth. Pearson's -test was performed among canal configurations, sides and gender (⩽0.05).
In the present study, most root canal configurations were type IV (76.8%) and type I (49.4%) in the maxillary first and second premolars, respectively, whereas most root canal configurations were type I (93%) in both mandibular first and second premolars. In total, four (0.9%) teeth in the maxillary first premolars and two (0.4%) teeth in the maxillary second molar premolars had three roots.
This is the first population-based study to focus solely on Turkish Cypriots' root canal anatomy. Our findings will be valuable for dental professionals who treat many Turkish Cypriot patients, in the United Kingdom, Australia and other countries.
由于经济和政治问题，自20世纪20年代以来，塞浦路斯土族人一直在从塞浦路斯移民，尤其是移民到英国、其他欧洲国家和澳大利亚。最近，根据英国下议院内政委员会的数据，约有30万塞浦路斯土族人生活在英国。然而，对居住在英国的这一民族群体的分析还不够充分。尽管许多塞浦路斯土族人生活在国外，但对该群体的牙齿特征却知之甚少。前磨牙，尤其是上颌前磨牙，由于其牙根和根管的数量以及髓腔形态的变异，在根管治疗中带来了巨大挑战。因此，确定塞浦路斯土族人群中前磨牙的形态特征，以帮助临床医生对该民族群体进行根管治疗，被认为是有价值的。
本横断面研究的样本包括对263例成年患者（年龄范围16 - 80岁）的锥束CT扫描进行回顾性评估。检查牙根数量及其形态、每个牙根的根管数量和根管形态。上颌和下颌前磨牙的根管形态也根据Vertucci分类法进行分类。在根管形态、左右侧和性别之间进行Pearson检验（P⩽0.05）。
在本研究中，上颌第一前磨牙和第二前磨牙的根管形态大多分别为IV型（76.8%）和I型（49.4%），而下颌第一前磨牙和第二前磨牙的根管形态大多均为I型（93%）。上颌第一前磨牙共有4颗（0.9%）牙齿有3个牙根，上颌第二磨牙前磨牙有2颗（0.4%）牙齿有3个牙根。
这是第一项仅专注于塞浦路斯土族人根管解剖结构的基于人群的研究。我们的研究结果对于在英国、澳大利亚和其他国家治疗众多塞浦路斯土族患者的牙科专业人员将具有重要价值。
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