Abstract
ABSTRACTSome studies have shown a relationship between temporomandibular disorders (TMD) and dysphonia, as well as quality of life in oral health. Objective: The purpose of this study was to investigate the correlation between severity of vocal self-perception and TMD severity and the correlation between oral health-related quality of life impairment and TMD severity. Material and methods: Thirty-three women aged 20 to 40 years, with or without complaint of dysphonia, were recruited at the Bauru campus of the University of São Paulo, Brazil, and the local community. All participants were subjected to an investigation of quality of life related to dental and speech aspects by the application of Oral Health Impact Profile-short form (OHIP-14) and the Voice-Related Quality of Life (V-RQOL) protocol. Also, a questionnaire was applied to detect the presence and severity of TMD. Results: There was significant correlation between TMD and quality of life for all aspects analyzed in the oral health protocol, except for function and physical limitation (p>0.05). There was negative correlation between TMD and voice-related quality of life in the total score (p=0.007) as weel as physical (p=0.008) and socio-emotional aspects (p=0.017). In addition, there was statistically significant correlation between TMD and vocal self-perception (p=0.037). Conclusion: There is an association between TMD severity, voice-related and oral health-related quality of life. It is important to investigate in future studies the vocal self perception as well as the oral and voice conditions in patients with TMD.
Highlights
Temporomandibular disorders (TMD) result from abnormal functioning of the masticatory muscles, temporomandibular joints (TMJs), associated structures or both8
The goal of this study was to investigate the correlation between the severity of vocal self-perception and TMD severity, between voice-related quality of life and TMD severity, and between oral health-related quality of life impairment and TMD severity
The descriptive QVV, OHIP-14 and vocal selfperception measures for the women participating in the study (Table 1) showed a good quality of life
Summary
Temporomandibular disorders (TMD) result from abnormal functioning of the masticatory muscles, temporomandibular joints (TMJs), associated structures or both. Individuals with TMD may present headaches or neck pain, TMJ noises, tinnitus or ear fullness, crepitation on opening or closing the mouth, RSHQLQJ OLPLWDWLRQ DQG GLI¿FXOWLHV LQ FKHZLQJ9,11 and on the speech5,6 70' FDQ HYHQ LQÀXHQFH individual’s psychosomatic characteristics reducing their quality of life. In addition to the TMD impact on orofacial functions and the individuals’ quality of life, vocal changes are signs and symptoms commonly associated with TMD cases. This occurs due to the fact that TMD etiologic factors are common to dysphonia, such as excessive tension in the cervix and orofacial region and mouth opening restriction, since mandibular movement limitation during speech can affect voice acoustics
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