Department of Operative Dentistry.
Department of Surgery, Aga Khan University Hospital, Karachi, Pakistan.
J Pak Med Assoc. 2023 Jan;73(1):49-53. doi: 10.47391/JPMA.5379.
To evaluate variations in the shape, diameter, length and width of the nasopalatine canal along with the width of the buccal cortical bone anterior to it, using cone beam computed tomography imaging.
The retrospective, cross-sectional study was conducted at the Aga Khan University Hospital, Karachi, from September to October 2020, and comprised pre-existing cone beam computed tomography scans taken between 2015 and 2020 of patients of either gender aged 18-60 years who had maxillary central incisors present. The shapes and dimensions of the nasopalatine canal were observed along with the buccal bone anterior to the nasopalatine canal. Data was compared with respect to age and gender. Data was analysed using SPSS 23.
Of the 90 scans evaluated, 46(51.1%) belonged to females with a mean age of 37.85±18.19 years, and 44(48.9%) belonged to males with a mean age of 38.07±13.58 years. The mean length and width of the nasopalatine canal was 11.28±1.90mm and 2.62±0.91mm, respectively. The nasopalatine canal was significantly longer (p<0.01) and wider (p=0.02) in males than females. The mean diameter of foramen of Stenson was 2.99±1.17mm and incisive foramen was 6.09±1.80mm. The mean width of the buccal cortical bone at the most coronal, middle and most incisal levels was 7.20±1.70mm, 6.12±1.31mm and 6.12±1.31mm, respectively. Buccal bone width was wider in males than females, but the difference was significant only at the midpoint (p<0.05).
There was a significant difference in the dimensions of the width and length of the NPC with respect to gender. No significant differences were observed with respect to age.
使用锥形束计算机断层扫描成像评估鼻腭管的形状、直径、长度和宽度以及其前部颊侧皮质骨的宽度的变化。
本回顾性横断面研究于 2020 年 9 月至 10 月在卡拉奇的 Aga Khan 大学医院进行，纳入了 2015 年至 2020 年期间存在上颌中切牙的 18-60 岁的男女患者的预先存在的锥形束计算机断层扫描检查。观察了鼻腭管的形状和尺寸以及鼻腭管前部的颊骨。根据年龄和性别比较数据。使用 SPSS 23 进行数据分析。
在评估的 90 个扫描中，46 个（51.1%）属于女性，平均年龄为 37.85±18.19 岁，44 个（48.9%）属于男性，平均年龄为 38.07±13.58 岁。鼻腭管的平均长度和宽度分别为 11.28±1.90mm 和 2.62±0.91mm。男性的鼻腭管明显更长（p<0.01）和更宽（p=0.02）。Stenson 管的平均直径为 2.99±1.17mm，切牙管为 6.09±1.80mm。最冠、中、最切端的颊侧皮质骨的平均宽度分别为 7.20±1.70mm、6.12±1.31mm 和 6.12±1.31mm。男性的颊骨宽度比女性宽，但仅在中点（p<0.05）差异有统计学意义。
性别对 NPC 的宽度和长度有显著影响。年龄方面没有显著差异。
