单颗后牙种植修复体的咬合力分布与数字咬合分析方法的比较：一项体内研究
Comparison of occlusal force distribution and digital occlusal analysis methods of single posterior implant restorations: an in vivo study.
作者信息
Gözen Mehmet, Güntekin Neslihan
机构信息
Department of Prosthodontics, Faculty of Dentistry, Necmettin Erbakan University, Konya, 42090, Turkey.
出版信息
BMC Oral Health. 2025 May 26;25(1):795. doi: 10.1186/s12903-025-06205-w.
BACKGROUND
Occlusion plays a crucial role in maintaining masticatory function and temporomandibular joint (TMJ). Single implant supported restorations are widely used for posterior tooth replacement, but they require careful occlusal adjustment due to the absence of periodontal ligament. Digital occlusal analysis methods, such as digital impressions and Occlusense, provide quantitative assessments of occlusal contacts and force distribution. However, their accuracy and clinical relevance remain uncertain.
METHODS
In this prospective clinical study, occlusal force distribution was evaluated before and after placement of single implant supported restoration using the Medit i700 intraoral scanner and OccluSense system. Measurements were performed before and after prosthesis under standardised conditions. Occlusal contact areas and force distributions were analysed using CloudCompare and ImageJ software. Statistical analysis was performed using Kruskal-Wallis test and Kendall's Tau-B correlation analysis.
RESULTS
A total of 20 patients were included in the study. Post-restoration measurements revealed significant changes in occlusal force distribution in different segments of the dental arch (p < 0.001). Strong correlations were observed between Medit and OccluSense measurements (p < 0.001).
CONCLUSION
Single-unit implant restorations significantly alter the occlusal force distribution, affecting not only the restored tooth but also the adjacent and opposing teeth. Both Medit i700 and OccluSense provided valuable information, with OccluSense providing a more detailed representation of occlusal force density. These findings suggest that digital occlusal analysis methods can help optimise occlusal adjustments for implant restorations.
TRIAL REGISTRATION
The current study was registered in ClinicalTrials.gov (ID: NCT06862973) First posted: 07/03/2025. Retrospectively registered.
背景
咬合在维持咀嚼功能和颞下颌关节（TMJ）方面起着至关重要的作用。单颗种植体支持的修复体广泛用于后牙替换，但由于缺乏牙周韧带，需要进行仔细的咬合调整。数字咬合分析方法，如数字印模和Occlusense，可提供咬合接触和力分布的定量评估。然而，它们的准确性和临床相关性仍不确定。
方法
在这项前瞻性临床研究中，使用Medit i700口腔内扫描仪和OccluSense系统评估单颗种植体支持修复体植入前后的咬合力分布。在标准化条件下于修复体植入前后进行测量。使用CloudCompare和ImageJ软件分析咬合接触面积和力分布。采用Kruskal-Wallis检验和肯德尔Tau-B相关性分析进行统计分析。
结果
本研究共纳入20例患者。修复后测量显示牙弓不同节段的咬合力分布有显著变化（p < 0.001）。Medit和OccluSense测量之间观察到强相关性（p < 0.001）。
结论
单单位种植体修复显著改变咬合力分布，不仅影响修复牙，还影响相邻牙和对颌牙。Medit i700和OccluSense均提供了有价值的信息，其中OccluSense能更详细地呈现咬合力密度。这些发现表明数字咬合分析方法有助于优化种植体修复的咬合调整。
试验注册
本研究已在ClinicalTrials.gov注册（ID：NCT06862973）首次发布：2025年3月7日。回顾性注册。
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