Quintessence Int. 2023 Sep 19;54(8):672-679. doi: 10.3290/j.qi.b4170135.
Work in animal models has implicated excessive occlusal forces and occlusal trauma as co-destructive factors for periodontitis. The main aim of the present study was to make a radiographic assessment of the effects of excessive occlusal forces, ie occlusal/incisal tooth wear, widening of the periodontal space, and the presence of a mandibular torus, on interproximal marginal bone loss in a large series of patients. A secondary aim was to evaluate the statistical correlation between the parameters in two specific teeth and those of 12 teeth for marginal bone loss and six teeth for occlusal/incisal tooth wear within the same individual.
A total of 1,950 full-mouth radiographic surveys were analyzed retrospectively. Interproximal marginal bone loss was quantified relative to the root length (Schei ruler technique). In addition, occlusal/incisal tooth wear and periodontal ligament space widening of the periodontal space were assessed, as well as the presence of a mandibular torus. Odds ratio and logistic regression analysis were used to determine the association between occlusal trauma and marginal bone loss.
The correlation of the measured parameters between the values for specific teeth and the whole dentition was evaluated from data from the first 400 radiographs. Teeth 41 and 33 showed the best correlation to the whole dentition: 0.85 for interproximal marginal bone loss, 0.83 for widening of the periodontal space, and 0.97 for occlusal/incisal tooth wear. The results of a logistic regression analysis with age as an independent variable, revealed a significant association between bone loss and both tooth wear (odds ratio = 2.767) and bone loss and widening of the periodontal space (odds ratio = 2.585).
Tooth wear was positively correlated to both widening of the periodontal space and marginal bone loss. No correlation was found between the presence of a mandibular torus and marginal bone loss.
动物模型研究表明，过度的咬合力量和咬合创伤是牙周炎的共同破坏性因素。本研究的主要目的是通过放射学评估，研究过度的咬合力量（即咬合/切牙磨损、牙周间隙增宽和下颌隆凸）对大量患者的近中边缘骨丧失的影响。次要目的是评估两个特定牙齿的参数与 12 颗牙齿的边缘骨丧失和 6 颗牙齿的咬合/切牙磨损之间的统计学相关性，这些参数都来自于同一患者。
回顾性分析了总共 1950 张全口曲面断层片。近中边缘骨丧失相对于牙根长度（Schei 标尺技术）进行量化。此外，还评估了咬合/切牙磨损和牙周间隙的牙周韧带空间增宽，以及下颌隆凸的存在。使用比值比和逻辑回归分析来确定咬合创伤与边缘骨丧失之间的关联。
从前 400 张曲面断层片中的数据评估了特定牙齿与全口牙齿之间测量参数的相关性。41 号和 33 号牙齿与全口牙齿相关性最好：近中边缘骨丧失为 0.85，牙周间隙增宽为 0.83，咬合/切牙磨损为 0.97。以年龄为自变量的逻辑回归分析结果表明，骨丢失与牙齿磨损（比值比=2.767）和骨丢失与牙周间隙增宽（比值比=2.585）之间存在显著关联。
牙齿磨损与牙周间隙增宽和边缘骨丧失均呈正相关。下颌隆凸的存在与边缘骨丧失之间无相关性。
