Department of Oral Development and Orthodontics, Oral Health Sciences, Faculty of Medicine, University of Oulu, Medical Research Center Oulu (MRC Oulu), Oulu University Hospital, Finland.
Center for Life Course Health Research, Faculty of Medicine, University of Oulu, Finland.
Eur J Orthod. 2022 Aug 16;44(4):377-384. doi: 10.1093/ejo/cjab070.
The aim of this study was to investigate malocclusion severity and its associations with oral health-related quality of life (OHRQoL) among middle-aged adults.
The study material consisted of 1786 subjects from the Northern Finland Birth Cohort 1966 who attended dental and oral examination as part of the 46-year-old follow-up study. Malocclusion severity was assessed using the Dental Health Component (DHC) of the Index of Orthodontic Treatment Need (IOTN) and the Peer Assessment Rating index (PAR) from digital 3D dental models. Participants also answered a questionnaire including the Oral Health Impact Profile (OHIP-14) and a question on their satisfaction with occlusal function. Differences between malocclusion severity groups were evaluated for both genders separately. For adjusted models, multivariate Poisson regression models were conducted.
In this study population, 31.3% had great or very great orthodontic treatment need according to DHC and the mean PAR total score was 22.05. The most severe malocclusions were associated with OHRQoL, especially the psychosocial and handicap dimensions, and satisfaction with occlusal function. There was a significant difference between genders, men having more severe malocclusion but women reporting more OHRQoL impacts.
One third of the study population were considered to have severe malocclusion. There was an association between malocclusion severity and OHRQoL in adult population, particularly in women.
本研究旨在调查中年人群的错颌畸形严重程度及其与口腔健康相关生活质量（OHRQoL）的关系。
本研究的资料来源于芬兰北部出生队列 1966 年的 1786 名受试者，他们参加了牙科和口腔检查，作为 46 岁随访研究的一部分。使用正畸治疗需求指数（IOTN）的口腔健康成分（DHC）和数字 3D 牙模型的同伴评估评分（PAR）评估错颌畸形严重程度。参与者还回答了一份包括口腔健康影响量表（OHIP-14）和对咬合功能满意度的问题的问卷。分别对男性和女性进行了不同错颌畸形严重程度组之间的差异评估。对于调整后的模型，采用多变量泊松回归模型进行分析。
在本研究人群中，根据 DHC，31.3%的人有较大或非常大的正畸治疗需求，平均 PAR 总分 22.05。最严重的错颌畸形与 OHRQoL 相关，尤其是心理社会和障碍维度以及对咬合功能的满意度。男女之间存在显著差异，男性错颌畸形更严重，但女性报告的 OHRQoL 影响更多。
研究人群中有三分之一的人被认为有严重的错颌畸形。错颌畸形严重程度与成人人群的 OHRQoL 之间存在关联，尤其是在女性中。
