Clinical research on relationship between the depth of curve of Spee and temporomandibular joint disorders in elderly patients
YU Tian-hao
ZHAN De-song
JIA Xing-ya
YAN Xu
Abstract：Objective To investigate the relationship between the depth of curve of Spee (COS) and temporomandibular joint disorders(TMD) in elderly patients.Methods Eighty-nine elderly patients with TMD visiting the Hospital of Stomatology of China Medical University from January 2013 to June 2013 were recruited in the study by random number table.Muscle pain and temporomandibular joint (TMJ)sounds were examined according to Research Diagnostic Criteria for TMD,and the depth of COS were measured on the dental casts.The mean depth of COS of patients without muscle pain and patients with pain at all levels were compared,and the unilateral depth of COS of patients with and without TMJ sounds were compared.Related data were analyzed statistically with one-way analysis of variance and t-test.Results The depth of ipsilateral COS of patients with TMJ sounds was significantly smaller than those of patients without TMJ sounds (left:P ＜ 0.001;right:P =0.008),while the depth of contralateral COS of patients with TMJ sounds had no significant differences with those of patients without TMJ sounds (left:P =0.481;right:P =0.905).In addition,there were no significant differences between the mean depth of COS of patients without muscle pain and patients with pain at all levels (P =0.327).Conclusion TMJ sounds are closely associated with COS,and the depth of ipsilateral COS of patients with TMJ sounds is smaller,and the COS is flatter.There is no significant association between the mean depth of COS and muscle pain.
Keywords：temporomandibular joint disorderstemporomandibular jointocclusioncurve of Spee
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 237-240 )