Aim: The objective of the present clinical study was to compare the effectiveness of radiofrequency de-epithelialization and conventional (slicing) method in reducing gingival pigmentation on long term basis by split mouth design.
Materials and methods: A total of 28 maxillary gingival units from 4 subjects aged between 15-30 years were considered for this clincal study and the selected gingival units were made plaque free and clinically healthy before subjectiing these sites to one of the procedures. The selected sites were abraded by either the conventional (slicing) method (14 gingival units of 21, 22, 23, 24) or by radiofrequency (14 gingival units of 11, 12, 13, 14). After the procedure periodontal dressing was applied to protect the operated area. After 1 week periodontal dressing was removed and the area was irrigated with saline. Follow up examination was done on 30(th), 60(th) and 90(th) days to evaluate the recurrence of pigmentation, if any.
Results: It was obsereved that, sites operated with conventional (slicing) method, showed higher mean pigmentation than the sites treated with the radioablation during the follow up period of 90 days.
Conclusion: When used judiciously, radiofrequency can be clinically valuable, safe and effective method to reduce pigmentation of gingiva.
Keywords: Conventional slicing method; pigmentation; radiofrequency.