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Proceedings Paper

Removal of dogs' gingival pigmentation with CO2 laser
Author(s): Jose Antonio Po Figueiredo; Maria Cristina Chavantes M.D.; Marco Antonio Gioso; Hildeberto Francisco Pesce; Adib D. Jatene
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Paper Abstract

The aim of this study was to analyze the ability of CO2 laser to remove physiologic pigmentation of gingiva. Dogs were chosen for this study because of their intense black pigmentation on the gingiva, similar to what can be found in human negroes and other dark- skinned races. Three specimens were irradiated at the left side of the buccal aspect of the gingiva, while for comparison the right side was used as a control. CO2 laser in a continuous mode applying 3 watt power was used (Xanar-20, USA). The portion to be irradiated was continuously irrigated with saline solution, to prevent tissue damage from the excessive heat generated. The handpiece device irradiated the target easily and fast, with no bleeding. All the pigmentation could be removed from the portion exposed to the laser beam. A 45th day follow up showed very little repigmentation just in one of the specimens. It could be concluded that CO2 laser irradiation can be an alternative to remove pigmentation of the gingiva for cosmetic purposes. The risk of repigmentation exists, so the patients should be aware of this inconvenience, sometimes demanding further irradiation.

Paper Details

Date Published: 1 May 1995
PDF: 4 pages
Proc. SPIE 2394, Lasers in Dentistry, (1 May 1995); doi: 10.1117/12.207439
Show Author Affiliations
Jose Antonio Po Figueiredo, Univ. Federal do Rio Grande do Sul (Brazil)
Maria Cristina Chavantes M.D., Univ. do Sao Paulo (Brazil)
Marco Antonio Gioso, Univ. Federal do Rio Grande do Sul (Brazil)
Hildeberto Francisco Pesce, Univ. Federal do Rio Grande do Sul (Brazil)
Adib D. Jatene, Univ. do Sao Paulo (Brazil)

Published in SPIE Proceedings Vol. 2394:
Lasers in Dentistry
Harvey A. Wigdor D.D.S.; John D. B. Featherstone; Joel M. White D.D.S., Editor(s)

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