Objective:

To determine the prevalence of oral mucosa diseases from 2014 to 2018 in the dentistry service of a regional teaching hospital in the city of Chiclayo, Perú.

Materials and methods:

Descriptive, retrospective, cross-sectional study; by random sampling, a revision using a data collection form from 370 medical records of patients of legal age, taking into account general population, gender and age levels.

Results:

The prevalence rate was found to be high with 52.7% between 2014 to 2018. The most common diseases were bacterial diseases such as necrotizing periodontitis with a 21.0%, and among other diseases, in the first place was the abscess with 64.1%; the ages with the highest prevalence are between 32 and more years with a 62.9% and with respect to gender, the female gender obtained a 59.0% of the total.

Conclusion:

The prevalence of oral mucosa diseases is high; more frequent in young females; there are not promotional programs implemented at this type of pathologies or at that age group. Which leaves a void in the prevention of the same that entails affirming the results obtained.