Dogan Ayhan, Uslu Filiz, Duman Suayip Burak
Orthodontics, Aydent Oral and Dental Health Clinic, 44100 Malatya, Turkey.
Department of Orthodontics, Faculty of Dentistry, Alanya Alaaddin Keykubat University, 07400 Antalya, Turkey.
J Clin Med. 2025 Sep 10;14(18):6372. doi: 10.3390/jcm14186372.
This study aimed to evaluate impacted mandibular canines and adjacent dentoalveolar structures using cone beam computed tomography. Measurements were made on CBCT images of 54 impacted mandibular canines. Parameters such as the position of the canine teeth, follicle diameter, their relationship with the mental foramen and the incisive mandibular canal, resorption in the adjacent teeth, interpremolar and intermolar width, arch symmetry, and mesiodistal width of the canine teeth were investigated. The resorption rate in adjacent permanent teeth was recorded as 14.8%. No statistically significant difference was found between the follicle size of the canine tooth and the resorption in the adjacent teeth ( > 0.05). Cortical bone perforation was found in 83.3% of individuals with impacted mandibular canines. Teeth in contact with the mental foramen and incisive mandibular canal were found in 11.1% and 6.5%, respectively. There was no statistically significant difference in the interpremolar and intermolar width on the impacted and non-impacted sides ( > 0.05). However, a significant difference was observed in the mesiodistal width of the canines and arch length on the impacted and non-impacted sides ( < 0.05). No correlation was found between root resorption in adjacent teeth and follicle size. Cortical bone perforations were observed in most impacted canines, and some were in contact with the mental foramen and the incisive mandibular canal. Although transversal arch widths were similar on the impacted and non-impacted sides, differences in arch length and mesiodistal widths may affect arch symmetry and should be considered in treatment planning.
本研究旨在使用锥形束计算机断层扫描评估下颌阻生尖牙及相邻牙牙槽结构。对54颗下颌阻生尖牙的CBCT图像进行测量。研究了尖牙位置、滤泡直径、它们与颏孔和下颌切牙管的关系、相邻牙齿的吸收情况、双尖牙间和磨牙间宽度、牙弓对称性以及尖牙的近远中宽度等参数。相邻恒牙的吸收发生率记录为14.8%。未发现尖牙滤泡大小与相邻牙齿吸收之间存在统计学显著差异（P>0.05）。83.3%的下颌阻生尖牙患者存在皮质骨穿孔。分别有11.1%和6.5%的牙齿与颏孔和下颌切牙管接触。阻生侧和非阻生侧的双尖牙间和磨牙间宽度无统计学显著差异（P>0.05）。然而，阻生侧和非阻生侧的尖牙近远中宽度和牙弓长度存在显著差异（P<0.05）。未发现相邻牙齿的牙根吸收与滤泡大小之间存在相关性。大多数阻生尖牙观察到皮质骨穿孔，有些与颏孔和下颌切牙管接触。尽管阻生侧和非阻生侧的横向牙弓宽度相似，但牙弓长度和近远中宽度的差异可能会影响牙弓对称性，在治疗计划中应予以考虑。
