Gingival depigmentation by Er,Cr:YSGG laser and diode laser: a split mouth, clinical trial study

Laser Therapy
Mahin BakhshiMahshid Namdari

Abstract

The Aim of this study was to evaluate the effectiveness of Diode laser and Er,Cr:YSGG laser ablation on the treatment of physiologic gingival melanin hyperpigmentation. This research design was split mouth, double blind, and clinical trial. The power of the diode laser was set at 1 W, fiber 320 µ, irradiation mode: continuous-wave with treatment mode of contact tip and Er,Cr:YSGG laser (2780 nm) was set at 100 MJ, frequency of 15 Hz, total power of 1.75 W, 10% water and 20% air. Bleeding, pain, healing, Dummett oral pigmentation index (DOPI) and Hedin melanin score changes and repigmentation were assessed. Patients were followed for 6 months. A total number of 14 patients were involved in this study. There were statistically significant differences in reduction of DOPI and Hedin melanin score in each treatment groups separately while diode laser group had better results (P < 0.0001). There was no statistically significant difference between groups in terms of repigmentation. There was more pain in diode laser group (P < 0.0001) and there was more bleeding in Er,Cr:YSGG laser group (P = 0.0156). Gingival healing was more in Er,Cr:YSGG laser group (P < 0.0001). Diode laser had more efficiency for reduction of DOPI and Hedin melan...Continue Reading

References

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Sep 16, 2015·Lasers in Medical Science·Mahin BakhshiAli Rahmani

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