The prevalence of denture related mucosa lesions among patients managed in a Nigerian teaching hospital

INTRODUCTION: the prevalence of denture related mucosa lesions (DRML) varies across different countries and a recent study reported an increasing trend in its prevalence. The objective of this study was to determine the prevalence of DRML and factors related to the lesions among denture wearers seen in a Nigerian teaching hospital. METHODS: interviewer’s administered questionnaire was used to obtain information from consecutive patients that had used removable denture for at least six months and consented to participate. Data related to gender, age, types of denture and presence of denture induced oral lesions were obtained, entered into a computer and analyzed using IBM SPSS Version 20. Descriptive statistics were expressed as frequency and percentages. Fisher’s exact test was performed for discrete variables. A P-value less than 0.05 was regarded as statistically significant. RESULTS: a total of 104 respondents participated in the study and 14 had DRML giving a prevalence of 13.5%. The majority, 11 out of the 14 (78.57%) presented with mucosa ulceration, while 8 (57.14%) out of the 14 cases of DRML were caused by over extension of the denture flanges. There was no statistically significant relationship between daily removal of denture fore going to bed to sleep at night and DRML (p=0.776). CONCLUSION: the prevalence of denture related mucosal lesion was 13.3% and the major cause was over extension of denture flange. There is need to emphasize adherence to review appointments for early detection and correction of denture instability and over extension of denture flange to prevent DRML.