Relationship between masticatory performance and patients' satisfaction toward complete denture treatment (Measured using color changeable chewing gum and validated indonesian version of Patient's Denture Assessment [PDA])

Satisfaction with a complete denture treatment in some patients is related to comfort, the absence of pain and the ability to masticate, while denture aesthetics and retention also seem to be important. The success of prosthodontic treatment, however, is evaluated differently by dentists and patients. Therefore, using a valid and reliable multidimensional self-assessment instrument to evaluate patients' satisfaction with their complete denture is needed, as well as a clinical examination of the complete denture, so that we can see the factors affecting treatment success. The purpose of this study was to analyze the relationship between patients' satisfaction toward their complete denture (evaluated using the Indonesian version of the PDA questionnaire) and masticatory performances (evaluated using color-changeable chewing gum), age, sex, education level, denture experience and the duration of their recent complete denture. A total of 101 subjects (50 men, 51 women) aged 45 years and older participated in this study. Masticatory performances were measured using color-changeable chewing gum with 100 strokes, and patients' satisfaction toward their complete denture was measured with the validated Indonesian version of the PDA questionnaire. The Spearman correlation was used to analyze the correlation between the masticatory performances and patients' satisfaction (p=0.001 r=0.633). Statistically, a significant correlation (p<0.05) was found among patients' satisfaction with their complete denture, masticatory performances (p=0.000) and the duration of the recent complete denture (p=0.017). Meanwhile, age (p=0.721), sex (p=0.759), education level (p=0.339) and denture experience (p=0.580) showed no statistically significant correlation. In conclusion of this study, masticatory performances and the duration of use of the current, complete denture have a strong positive correlation with patients' satisfaction toward their complete denture.