Calin Fodor, Dalewski Bartosz, Ellmann Maciej, Kiczmer Paweł, Ihde Stefan, Bieńkowska Marta, Kotuła Jacek, Pałka Łukasz
Dr. Fodor Romulus Calin's Clinic of Dentistry and Implantology, Romania str. Dragos Voda nr. 8, 405300 Gherla, Romania.
Chair and Department of Dental Prosthetics, Pomeranian Medical University, 70-111 Szczecin, Poland.
Dent J (Basel). 2025 May 14;13(5):211. doi: 10.3390/dj13050211.
Implant placement in cases of severe bone atrophy or compromised alveolar bone requires careful planning, especially in the anterior maxilla. The nasopalatine canal (NPC) and its cortical walls offer potential anchorage sites. This study evaluates the NPC's anatomical characteristics using cone beam computed tomography (CBCT) to assess its suitability for implant anchorage. A retrospective analysis of 150 CBCT scans from three dental clinics in Poland was conducted. NPC measurements-including length, width, number of canals, and distances to adjacent anatomical structures-were taken in the sagittal, coronal, and axial planes. Statistical tests included Pearson correlation and Student's -test to explore relationships between NPC dimensions and gender. The mean NPC length was 10.27 mm and mean width 3.55 mm. Significant gender differences were observed in the canal length, width, and distances to the labial and palatal plates ( < 0.05). Strong positive correlations were found between the canal width at the palate base and other parameters, such as the midpoint width (r = 0.58) and diameter (r = 0.44). The distance from the palatal opening to the labial plate showed the strongest correlation (r = 0.67), indicating enhanced cortical anchorage potential with increased canal dimensions. NPC morphology varied (cylindrical, funnel-like, hourglass), aligning with prior studies. Larger diameters were linked to single-canal configurations. Implant placement strategies-such as direct canal insertion or lateralization-can be effective, especially with polished, single-piece implants that reduce soft tissue ingrowth and improve primary stability. Understanding NPC anatomy is crucial for implant planning in atrophic maxillae. With the proper technique, NPC use for cortical anchorage is a viable treatment option.
在严重骨萎缩或牙槽骨受损的情况下植入种植体，尤其是在上颌前部，需要仔细规划。鼻腭管（NPC）及其皮质壁提供了潜在的锚固部位。本研究使用锥形束计算机断层扫描（CBCT）评估NPC的解剖特征，以评估其作为种植体锚固部位的适用性。对波兰三家牙科诊所的150份CBCT扫描进行了回顾性分析。在矢状面、冠状面和轴位面上测量了NPC的长度、宽度、管腔数量以及与相邻解剖结构的距离。统计检验包括Pearson相关性检验和t检验，以探究NPC尺寸与性别的关系。NPC的平均长度为10.27毫米，平均宽度为3.55毫米。在管腔长度、宽度以及与唇侧和腭侧骨板的距离方面观察到显著的性别差异（P<0.05）。在腭基部的管腔宽度与其他参数之间发现了强正相关性，如中点宽度（r = 0.58）和直径（r = 0.44）。从腭侧开口到唇侧骨板的距离显示出最强的相关性（r = 0.67），表明随着管腔尺寸增加，皮质锚固潜力增强。NPC形态各异（圆柱形、漏斗状、沙漏状），与先前研究一致。较大直径与单根管结构相关。种植体植入策略，如直接插入管腔或侧向植入，可能是有效的，特别是对于减少软组织向内生长并提高初期稳定性的抛光单件式种植体。了解NPC解剖结构对于萎缩性上颌骨的种植体规划至关重要。采用适当技术，将NPC用于皮质锚固是一种可行的治疗选择。
