颞下颌关节音的分形特征初探  

The preliminary study of fractal dimension of temporomandibular joint sounds

作　　者：张玉玮[1] 刘振宅[2] 卢建慧[1] 张红梅[2] 李建涛[2] 

机构地区：[1]天津医科大学口腔医学院,300070 [2]天津医科大学生物医学工程系

出　　处：《天津医科大学学报》2001年第2期233-235,共3页Journal of Tianjin Medical University

基　　金：天津医科大学科研基金资助课题(编号 :98KY21)

摘　　要：目的 :探讨正常受试者和颞下颌关节紊乱病(TMD)患者的颞下颌关节(TMJ)音的分形特征。方法 :应用非线性动力学的混沌与分形理论对正常受试者和患者的TMJ音进行分形分析。结果 :正常受试者TMJ音的分维值为4.4325;患者的分维值为3.2173。二者间存在显著性差异。结论 :TMJ音波形具有分形特征。分形分析有很好的重复性和相似性 ,有望成为诊断TMD的一种无创方法。Objective: To investigate the fractal characteristics of temporomandibular Joint (TMJ) sounds in normal subjects and patients with temporomandibular disorders(TMD). Methods:Fractal analysis of TMJ sounds in normal subjects and patients were done by the theory of chaos and fractal in nonlinear dynamics. Results: The correlation dimension of the normal subjects was 4.4325,the patients' was 3.2173. Conclusion :Our results indicate that TMJ sounds possess fractal characteristics. Fractal analysis has good repeatability and similarity,and may be a nontraumatic method for the diagnostics of TMD.

关 键 词：颞下颌关节紊乱病 颞下颌关节音 分形 

分 类 号：R782.6[医药卫生—口腔医学]