The influence of mandibular movements on joint sounds in patients with temporomandibular disorders.
The influence of mandibular movements on joint sounds in patients with temporomandibular disorders.
复制标题
颞下颌关节紊乱病患者下颌运动对关节声音的影响。
DOI:
10.1016/s0022-3913(99)70247-7
复制
发表时间:
1999
期刊:
影响因子:
--
通讯作者:
Zaki,HS
中科院分区:
文献类型:
--
作者:
Leader,JK;Boston,JR;Rudy,TE;Greco,CM;Zaki,HS
Statement of problemThere are discrepancies among researchers concerning the reliability and use of temporomandibular joint sounds.PurposeThis study examined the reliability of mandibular movements and sounds and determined the correlation between movements and sounds.Material and methodsThe mandibular movements of 35 subjects diagnosed with temporomandibular disorders were recorded with 2 CCD cameras, and sounds were recorded bilaterally with Panasonic electret condenser microphones in the ear canal. Subjects performed 3 movements, each repeated 5 times.ResultsReliability of maximum movements across the 5 trials was good to excellent, with Intraclass Correlation Coefficients (ICC) between 0.76 and 0.91 for all movements except protrusion. Temporomandibular sound event counts were reliable for most movements, including vertical opening, protrusion, and right and left laterotrusion (ICCs between 0.41 and 0.81). Most subjects produced sound events either in 100% or in none of the trials. Reliability for sound events was better during protrusion (ICCs between 0.56 and 0.81) than vertical opening (ICCs 0.41 to 0.64). Subjects with sound events during vertical opening (followed by closing) were significantly more likely to have sound events during protrusion (followed immediately by vertical opening and closing) (P <.01).ConclusionTemporomandibular sound events are generally reliable and warrant study regarding their use in classifying and diagnosing patients with temporomandibular disorders. Condylar translation, which occurs during both vertical opening and protrusion, appears to have a strong influence on the production of temporomandibular sound events. (J Prosthet Dent 1999;81:186-95.)