Objective: This study aims to report two experiences in the surgical management of microstomia.

Case 1 : A 65-year-old female patient was admitted to our department with complaints of difficulting in making a partial denture. She suffered from a microstomia with systemic sclerosis. We performed her commissurotomy. After the operation, we disinfected and measured the mouth width.

Case 2 : A 79-year-old female patient was admitted to our department with complaints of severe difficulty in eating due to the restricted mouth opening caused by Verrucous carcinoma of lip operation. We performed her commissurotomy.

Results: For case 1, before operation, the distances between corners of the mouths were 42 mm. Immediately after the operation the distance 57 mm,after 3 months were 55 mm and after 1 year were 53 mm. For case 2, immediately after the operation the distance became 60 mm and after 10 days, was 60 mm.

Conclusion: Mostly, after commissurotomy of microstomia, mouth splint and mouth expander has been used for the prevention of cicatricial contraction. Our cases, we did not use such a device for patients. However, the progress after the operation is satisfactory. The distance between corners of the mouths had grown by commissurotomy and it became easy the impression taking and to attach or remove the denture.

Conflict of interest: None declared.