Background & Aims
This case-control study’s objective was to investigate variables based on a cognitive-behavioral-emotional model related to the development of painful temporomandibular disorders (TMD) in a sample of monozygotic twins discordant for the condition.
Methods
20 monozygotic twins (10 pairs discordant for painful TMD), aged between 18 and 55 years, were studied. The diagnosis of painful TMD was determined according to the Diagnostic Criteria for Temporomandibular Disorders – Brazilian Portuguese (DC/TMD). The cognitive-behavioral-emotional variables analyzed were sociodemographic profile, pain sensitivity (pain threshold to pressure, allodynia, and hyperalgesia), oral behaviors, pain vigilance and awareness, pain catastrophizing, central sensitization, stress, anxiety, depression, alexithymia, mindfulness facets, sleep quality, pain control, pain intensity and interference, trigeminal and extratrigeminal pain areas.
Results
According to the adjusted regression model, there was an increased chance of TMD with: an increasing left-sided masseter face pain sensitivity score (OR=3.29;95%CI=(0.17-62.8),p=0.428); an increasing total pain catastrophizing score (OR=1.08; 95%CI=(0.64-1.8),p=0.776); an increasing score of difficulty in externalizing feelings (OR=1.61;95%CI=(0.13-2.9),p=0.539); and a scoring of the distraction facet of the FFMQ scale (OR=4.65;95%CI=(0.39-55.7),p=0.225).
Conclusions
From the cognitive-behavioral-emotional model studied in this case-control study of monozygotic twins discordant for painful TMD, painful sensitivity in the face, catastrophizing pain, difficulty in externalizing feelings, and the distraction facet (mindfulness) are variables that increase the chance of developing painful TMD.
References
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Presenting Author
Laís Magri
Poster Authors
Topics
- Specific Pain Conditions/Pain in Specific Populations: Orofacial Pain