J Oral Rehabil. 2021 Jun 30. doi: 10.1111/joor.13221. Online ahead of print.
ABSTRACT
OBJECTIVES: To assess the association between waking-state oral behaviors and temporomandibular disorder (TMD) subgroups, and to develop new scoring methods for the Oral Behavior Checklist (OBC).
METHODS: Patients with any TMD diagnosis, according to the diagnostic criteria for TMD (DC/TMD), were divided into subgroups: “Dysfunctional-TMD” (n=70), only mechanical dysfunction; “Painful-TMD” (n=204), only myalgia, arthralgia, or both; and “Painful-Dysfunctional TMD” (n=95), combined pain and dysfunction. A group of individuals without TMD, “Non-TMD” (n=374), was used for testing associations. Participants completed the OBC. An exploratory factor analysis, followed by a confirmatory factor analysis of the OBC responses, identified 2 major factors, named Non-Functional Activities (NFA) and Functional Activities (FA). Component total scores were computed. Differences among subgroups for OBC-MS (Mean Score) and NFA and FA factor scores were estimated using one-way ANOVA and Tukey post-hoc tests. Significance was set at P<0.05.
RESULTS: The OBC-MS in Non-TMD, Painful-TMD, and Painful-Dysfunctional TMD subgroups was higher than in the Dysfunctional-TMD subgroup (p≤0.001). NFA in Painful-TMD and Painful-Dysfunctional TMD subgroups were higher than in the Non-TMD group (p<0.05); NFA in the Dysfunctional-TMD subgroup were lower than in the Painful-TMD subgroup (p=0.034). In contrast, FA in Painful-TMD, Dysfunctional-TMD, and Painful-Dysfunctional TMD subgroups were lower than in the Non-TMD group (p<0.0001).
CONCLUSIONS: A new scoring method for the OBC results in item reduction and creation of meaningful subscales for functional and non-functional behaviors, which are differentially associated with painful and dysfunctional TMDs. This may help clinicians to better tailor treatment for the management of subtypes of TMD patients.
PMID:34192368 | DOI:10.1111/joor.13221
