A clinical study on the removal of gingival melanin pigmentation with the CO(2) laser.

Abstract:

BACKGROUND AND OBJECTIVE:In a previous study, the possibility of removal of dog gingival melanin pigmentation with CO(2) laser therapy was reported. The present study was designed to investigate the effect of the CO(2) laser on human gingival pigmentation and evaluate the clinical outcome. STUDY DESIGN/MATERIALS AND METHODS:A CO(2) laser (output: 6-8 W, pulse duration: 0.2 seconds) was irradiated on the melanin pigmented gingival surface of 10 patients, aged 20-49 years. Follow-up clinical and histopathological evaluations were performed. RESULTS:The CO(2) laser was effective in removing melanin pigmentation in all patients. In the histopathological study, no pigmented-laden cells nor any inflammatory cell infiltration was observed following laser irradiation. No re-pigmentation was seen in any case in the first year. However, four of seven cases showed re-pigmentation at 24 months. The re-pigmentation was almost equal to the preoperative state. CONCLUSIONS:The CO(2) laser has proved to be another effective, safe, and easily applicable therapy for the removal of gingival melanin pigmentation.

journal_name

Lasers Surg Med

authors

Nakamura Y,Hossain M,Hirayama K,Matsumoto K

doi

10.1002/(sici)1096-9101(1999)25:2<140::aid-lsm7>3.

subject

Has Abstract

pub_date

1999-01-01 00:00:00

pages

140-7

issue

2

eissn

0196-8092

issn

1096-9101

pii

10.1002/(SICI)1096-9101(1999)25:2<140::AID-LSM7>3.

journal_volume

25

pub_type

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