Journal of IMAB - Annual Proceeding (Scientific Papers)
Publisher: Peytchinski, Gospodin Iliev
ISSN: 1312 773X (Online)
Issue: 2014, vol. 20, issue 1
Subject Collection: Oral and Dental Medicine
Pages: 487-489
DOI: 10.5272/jimab.2014201.487
Published online: 12 May 2014

J of IMAB 2014 Jan-Jun;20(1):487-489
Genoveva Balcheva Corresponding Autor, Miglena Balcheva.
Department of Conservative dentistry and oral pathology, Faculty of Dental Medicine, Medical University - Varna, Bulgaria.

Hyperactivity of melanocytes is the reason for dark colour of gingiva, which is absolutely benign condition with only esthetic disadvantage, for people with gummy smilemostly. Depigmentation is a procedure of removing or reducing of gingival hyperpigmentation. The purpose of the research is to investigate the advantage of using Er:YAG laser than liquid nitrogen in case of gingival depigmentation. That’s why two alternative methods are used: laser ablation with an Er:YAG laser and cryosurgical procedure of tissue destruction by fast freezing with liquid nitrogen (-196º C).Laser assisted gingival depigmentation is a single step procedure, with fast healing process. There is difficult control of penetration and risk for excessive tissue destruction after prolonged freezing in the cryosurgical procedure.

Key words: Er:YAG laser, liquid nitrogen, depigmentation,

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Please cite this article as:
Balcheva G, Balcheva M. Depigmentation of gingivan. J of IMAB. 2014 Jan-Jun;20(1):487-489. doi: 10.5272/jimab.2014201.487.

Correspondence to: Dr. Genoveva Balcheva, Department of Conservative dentistry and oral pathology, Faculty of Dental Medicine, Medical University - Varna; 84, Tzar Osvoboditel Boul. off. 623; 9002 Varna, Bulgaria; E-mail:

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Received: 04 February 2014
Published online: 12 May 2014

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