Beshtawi Khaled R
Department of Dental Sciences, Faculty of Graduate Studies, Arab American University, Ramallah City, Palestine.
Sci Rep. 2025 Apr 17;15(1):13248. doi: 10.1038/s41598-025-97392-7.
The nasopalatine canal (NPC) is a key anatomical structure in maxillofacial surgery and dentistry, influencing surgical and dental procedures. This study evaluated the morphology, dimensions, and variations of the NPC in Palestinian patients using cone-beam computed tomography (CBCT). A retrospective analysis of CBCT scans (sagittal and coronal views) from 120 patients was conducted. Measurements included canal widths (at the superior, middle, and inferior thirds), canal length, and alveolar ridge widths (anterior to NPC). Canal shape was classified into six types. The number of nasal (NN) and palatal (NP) openings, along with age and gender, were recorded. Statistical analyses included independent t-tests, Mann-Whitney U tests, and Chi-square tests. The most common canal shape was cylindrical (35%), followed by funnel (27.5%). Significant gender differences were found in the sagittal ridge inferior (p = 0.032) and middle width (p = 0.008). NPC dimensions differed significantly between sagittal and coronal views (p < 0.001). Tooth loss increased with age (p = 0.005), but canal shape was not linked to dental status. Most NPC dimensions in this study aligned with global findings, with the cylindrical shape being the most common. Sagittal CBCT views provided more precise length measurements. Gender differences were observed in sagittal ridge widths, while canal shape was unrelated to dental status. Sagittal CBCT views are recommended for accurate implant planning and maxillofacial surgical procedures, minimizing neurovascular risks.
鼻腭管（NPC）是颌面外科和牙科领域的关键解剖结构，对手术和牙科操作有影响。本研究使用锥形束计算机断层扫描（CBCT）评估了巴勒斯坦患者鼻腭管的形态、尺寸和变异情况。对120例患者的CBCT扫描（矢状面和冠状面视图）进行了回顾性分析。测量内容包括管腔宽度（在上、中、下三分之一处）、管腔长度和牙槽嵴宽度（鼻腭管前方）。管腔形状分为六种类型。记录了鼻侧开口（NN）和腭侧开口（NP）的数量以及年龄和性别。统计分析包括独立t检验、曼-惠特尼U检验和卡方检验。最常见的管腔形状是圆柱形（35%），其次是漏斗形（27.5%）。在矢状面牙槽嵴下部（p = 0.032）和中部宽度（p = 0.008）发现了显著的性别差异。鼻腭管尺寸在矢状面和冠状面视图之间存在显著差异（p < 0.001）。牙齿缺失随年龄增加（p = 0.005），但管腔形状与牙齿状况无关。本研究中大多数鼻腭管尺寸与全球研究结果一致，圆柱形最为常见。矢状面CBCT视图提供了更精确的长度测量。在矢状面牙槽嵴宽度上观察到性别差异，而管腔形状与牙齿状况无关。建议使用矢状面CBCT视图进行精确的种植体规划和颌面外科手术，以将神经血管风险降至最低。
