Department of Dentistry, Ng Teng Fong General Hospital and Faculty of Dentistry, National University Health System, Singapore, Singapore.
National Dental Research Institute Singapore, National Dental Centre Singapore and Duke-NUS Medical School, Singapore Health Services, Singapore, Singapore.
Clin Oral Investig. 2023 Sep;27(9):5083-5093. doi: 10.1007/s00784-023-05129-5. Epub 2023 Jul 3.
This study explored the relationship of oral parafunction to the psychological variables of personality, coping, and distress. Correlates of sleeping/waking-state oral activities with the different psychological factors were also examined, along with psychological predictors for high parafunction.
Young adults from a large private university were enrolled. The frequency of oral behaviors was appraised with the oral behavior checklist (OBC), and participants were stratified into low and high parafunction (LP/HP) groups following the DC/TMD. Personality traits, coping styles, and psychological distress were assessed with the Big Five Personality Inventory-10 (BFI-10), brief-COPE Inventory (BCI), and Depression, Anxiety, Stress Scales-21 (DASS-21) correspondingly. Statistical evaluations were performed using the chi-square/Mann-Whitney U tests, Spearman's correlation, and logistic regression analyses (α = 0.05).
Among the 507 participants (mean age 22.2 ± 1.5 years), 84.6% and 15.4% had low and high parafunction respectively. While personality profiles did not vary substantially, the HP group exhibited significantly greater emotion-focused/dysfunctional coping, general distress, depression, anxiety, and stress scores than the LP group. Associations between OBC and the various psychological variables were weak when significant or insignificant. Neuroticism and dysfunctional coping were moderately correlated to general distress, depression, anxiety, and stress (r = 0.44-0.60/0.45-0.51). Multivariate analyses indicated that high parafunction was predicted by dysfunctional coping style (OR = 2.55) and anxiety (OR = 1.33).
Dysfunctional coping was the main risk factor for high parafunction, increasing its odds by about 2.5 times.
Oral parafunction appears to be a dysfunctional coping response to psychological distress.
本研究探讨了口腔副功能与人格、应对和痛苦等心理变量的关系。还检查了睡眠/觉醒状态口腔活动与不同心理因素的相关性，以及高副功能的心理预测因素。
从一所大型私立大学招募了年轻人。使用口腔行为检查表（OBC）评估口腔行为的频率，根据 DC/TMD 将参与者分为低副功能（LP）和高副功能（HP）组。使用大五人格量表-10（BFI-10）、简要应对量表（BCI）和抑郁、焦虑和压力量表-21（DASS-21）评估人格特质、应对方式和心理困扰。使用卡方/Mann-Whitney U 检验、Spearman 相关和逻辑回归分析（α=0.05）进行统计评估。
在 507 名参与者（平均年龄 22.2±1.5 岁）中，84.6%和 15.4%分别有低副功能和高副功能。虽然人格特征没有明显差异，但 HP 组的情绪聚焦/功能失调应对、一般困扰、抑郁、焦虑和压力评分显著高于 LP 组。当显著或不显著时，OBC 与各种心理变量之间的关联较弱。神经质和功能失调的应对与一般困扰、抑郁、焦虑和压力呈中度相关（r=0.44-0.60/0.45-0.51）。多变量分析表明，功能失调的应对方式（OR=2.55）和焦虑（OR=1.33）是高副功能的预测因素。
功能失调的应对是高副功能的主要危险因素，使其发生的几率增加约 2.5 倍。
口腔副功能似乎是对心理困扰的一种功能失调的应对反应。
