[Case of gingival hyperplasia due to mouth breathing].

In this article, a severe gingival hyperplasia case which was seen in maxilla and mandible of a 13 years old male patient who has mouth breathing was presented and some knowledges about this subject were reviewed. It was observed that the patient has nasal obstruction and he was called for nasal operation after he finishes the age of eighteen. His luxe primary teeth were extracted. For the time being to provide esthetic and function, gingivectomy was performed on upper and lower jaw.