Zhou Shuang Ying, Mahmood Hina, Cao Cai Fang, Jin Li Jian
Chin J Dent Res. 2017;20(1):19-26. doi: 10.3290/j.cjdr.a37738.
To determine the association of high occlusal force (HOF) with the signs of occlusal trauma and periodontal conditions in periodontitis patients, and elaborate the relevant clinical implications.
Periodontal parameters and signs of occlusal trauma were recorded for 807 teeth in 30 subjects with untreated chronic periodontitis. The T-scan II occlusal analysis system determined the HOF during maximum intercuspation, lateral excursion and protrusive excursion. The correlation of HOF with periodontal parameters and signs of occlusal trauma was analysed.
Overall, the teeth with HOF existed mainly in molars and presented with deeper probing depth (PD) and higher frequency of bleeding on probing (BOP) than those without HOF. The fixed-effect analysis showed that HOF was positively correlated with PD and BOP (P < 0.05) in posterior teeth; widened periodontal ligament space on radiographs in upper (r = 0.179, P < 0.01) and lower posterior teeth (r = 0.205; P < 0.05); as well as functional mobility in upper posterior teeth (r = 0.168; P < 0.05).
This study suggests that the posterior teeth with HOF in subjects with chronic periodontitis may reflect occlusal trauma-associated periodontal conditions that could probably increase the risk of further periodontal destruction. These findings may improve the clinical assessment of occlusal trauma and related periodontal conditions for better patient management and treatment outcomes.
确定高咬合力（HOF）与牙周炎患者咬合创伤体征及牙周状况之间的关联，并阐述相关临床意义。
记录30例未经治疗的慢性牙周炎患者807颗牙齿的牙周参数和咬合创伤体征。使用T-scan II咬合分析系统测定最大牙尖交错位、侧方运动和前伸运动时的HOF。分析HOF与牙周参数及咬合创伤体征之间的相关性。
总体而言，存在HOF的牙齿主要位于磨牙，与不存在HOF的牙齿相比，其探诊深度（PD）更深，探诊出血（BOP）频率更高。固定效应分析显示，HOF与后牙的PD和BOP呈正相关（P < 0.05）；上颌（r = 0.179，P < 0.01）和下颌后牙（r = 0.205；P < 0.05）X线片上牙周膜间隙增宽；以及上颌后牙的功能动度（r = 0.168；P < 0.05）。
本研究表明，慢性牙周炎患者中存在HOF的后牙可能反映了与咬合创伤相关的牙周状况，这可能会增加进一步牙周破坏的风险。这些发现可能会改善对咬合创伤及相关牙周状况的临床评估，以实现更好的患者管理和治疗效果。
