Razavi Mahshid, Shams Nasim, Afshari Farzin, Nanai Sara
Assistant Professor, Department of Oral and Maxillofacial Radiology, School of Dentistry, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
Associate Professor, Department of Oral and Maxillofacial Radiology, School of Dentistry, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
Maedica (Bucur). 2024 Jun;19(2):303-311. doi: 10.26574/maedica.2024.19.2.303.
Nasal and paranasal anatomical structures are closely related to the nasolacrimal canal (NLC). As a result of this anatomical relationship, several studies have reported that nasal and paranasal sinus pathologies often play a major role in the etiology of nasolacrimal duct obstruction. The purpose of this study was to investigate the anteroposterior diameter, transverse diameter, length and angle of the bony NLC with nasal floor on the right and left by using cone beam computed tomography (CBCT) and to explore the influence of gender and age on the above-mentioned parameters.
The current study was conducted by examining the archive of primary CBCT images of patients who were referred for medical imaging to a private maxillofacial radiology clinic in Ahvaz, Iran, in 2020. In axial images, anteroposterior diameter and transverse diameter of the canal in the level of infraorbital were measured. In sagittal images, the length of the NLC was evaluated from the most proximal to the most distal part. Also, to examine the canal pathway, the angle between the canal and the floor of the nasal cavity was measured. Finally, all patient data, including age, gender and canal dimensions, diameter and path, was collected in the information form and referred to the statistics consultant for analysis.
In the present study we included information of primary CBCT images of 126 patients who had been referred to a private maxillofacial radiology in Ahvaz, Iran, in 2020. Participants' average age was 28.22±8.13 years for women and 31.54±8.12 years for men, and a small age difference between sexes was seen. The average angle of the right canal with nasal floor was 108.29±7.96º for men and 113.70±7.57º for women, with a significant statistical difference by gender being observed. The mean values of the right channel length were 10.47±2.56 mm for women and 12.54±2.40 mm for men, and the difference between them was statistically significant. The mean values of the left canal length were 109.30±8.67 mm for women and 114.52±9.01 mm for men, and the difference between them was also statistically significant.
This study provides useful information on the morphometric properties of the bony nasal canal. Careful anatomical knowledge about the morphology of the bony nasal canal may help physicians to plan the treatment options. As the present study raises some concerns related to the age and gender differences in nasopalatine canal morphology that may affect patients' diagnosis and treatment, dentists are recommended to use CBCT images as well as additional techniques with this regard.
鼻腔和鼻旁的解剖结构与鼻泪管（NLC）密切相关。由于这种解剖关系，多项研究报告称，鼻腔和鼻窦疾病在鼻泪管阻塞的病因中往往起主要作用。本研究的目的是使用锥形束计算机断层扫描（CBCT）来研究骨性鼻泪管在左右两侧与鼻底的前后径、横径、长度和角度，并探讨性别和年龄对上述参数的影响。
本研究通过检查2020年转诊至伊朗阿瓦士一家私立颌面放射诊所进行医学影像检查的患者的原始CBCT图像存档来进行。在轴向图像中，测量眶下水平处泪管的前后径和横径。在矢状图像中，从最近端到最远端评估鼻泪管的长度。此外，为了检查泪管路径，测量泪管与鼻腔底部之间的角度。最后，将所有患者数据，包括年龄、性别以及泪管尺寸、直径和路径，收集到信息表中，并提交给统计顾问进行分析。
在本研究中，我们纳入了2020年转诊至伊朗阿瓦士一家私立颌面放射诊所的126例患者的原始CBCT图像信息。参与者的平均年龄女性为28.22±8.13岁，男性为31.54±8.12岁，性别之间年龄差异较小。右侧泪管与鼻底的平均角度男性为108.29±7.96°，女性为113.70±7.57°，观察到性别之间存在显著统计学差异。右侧泪管长度的平均值女性为10.47±2.56mm，男性为12.54±2.40mm，两者之间的差异具有统计学意义。左侧泪管长度的平均值女性为109.30±8.67mm，男性为114.52±9.01mm，两者之间的差异也具有统计学意义。
本研究提供了有关骨性鼻泪管形态学特性的有用信息。关于骨性鼻泪管形态的详细解剖学知识可能有助于医生规划治疗方案。由于本研究提出了一些与鼻腭管形态的年龄和性别差异相关的问题，这些差异可能会影响患者的诊断和治疗，因此建议牙医在这方面使用CBCT图像以及其他技术。
