To what extent does personality influence satisfaction with Invisalign treatment?

Researchers at the College of Dentistry at King Khalid University in Saudi Arabia investigated this question.

Using the OHIP questionnaire, they recorded the Oral Health Impact Profile (OHIP), i.e. the subjective assessment of one's own oral health-related quality of life, in 50 randomly selected patients (26 women, 24 men aged 18 to 48). In addition, they asked about personality traits that might influence subjective perceptions of treatment success and associated oral health-related quality of life.
Before treatment, the five main dimensions of personality (NEO Five-Factor Inventory) were queried: neuroticism, extraversion, openness to treatment, and agreeableness and conscientiousness after treatment. In addition, patients were assessed before and after treatment.

THE GENDER DIFFERENCE WAS SIGNIFICANT
The gender difference was significant: more women than men showed a basic willingness to seek orthodontic treatment. During treatment, they reported functional limitations less frequently than the men surveyed. No discernible difference was made by the level of education, whether the participants were married or single, and whether they smoked or not.
Overall, the finding ties in with existing studies, underscoring that women are more likely to perceive aligner treatment as improving quality of life in the context of oral health.

Al Nazeh, A. A. et al: "Relationship between oral health impacts and personality profiles among orthodontic patients treated with Invisalign clear aligners" in Scientific Reports on 24 Nov. 2020 DOI: https://doi.org/10.1038/s41598-020-77470-8