A comparative clinical study between the efficacy of Nd:YAG laser and Diode laser in the management of physiologic gingival melanin pigmentation

Abstract

Objective Recently, laser surgery has been used extensively in the treatment of gingival melanin pigmentation (GMP). Several lasers have been utilised for this purpose. This study compares the use of Nd:YAG and diode in treating of GMP based on healing period, recurrence and patient’s acceptability. Materials and Methods Twenty patients with moderate/severe GMP were included in this split mouth study. Nd:YAG with a free running pulse mode, wavelength of 1064 nm, was used to treat GMP of the two right quadrants. However, diode with a continuous mode, wavelength of 980 nm, was used to treat GMP on the left side. Clinical assessment of each laser quadrant was made in 1 week, 1, 3, 6 and 9 months post‐operatively. Results Clinical examination showed that the complete healing of gingiva occurred in a period between 1 week (30% diode, 40% Nd:YAG) and 4 weeks (70% diode, 60% Nd:YAG). Post‐operatively, after 9 months, most patients were satisfied with the procedure, although a recurrence was of 35% of the sample. Statistical analyses did not demonstrate differences between Nd:YAG and diode lasers with regard to all studied variables (P > 0.05). Conclusions Both Nd:YAG and diode lasers are effective in the management of physiologic gingival pigmentations although recurrence is still recognised.

The Power of Pink: Transforming Smile Esthetics through Laser-assisted Gingival Depigmentation.

“…Our findings indicate that there was a significant reduction in pigmentation scores following treatment. These results were consistent with other published studies (11,(17)(18)(19)(20)(21). Gul et al (2019) conducted a systematic review and meta-analysis examining the optimal approach for managing physiologic gingival hyperpigmentation, various depigmentation methods, including lasers, were evaluated.…”

“…The findings indicated that diode laser was significantly more effective as compared to Erbium lasers (22). Alasbahi et al compared between the effectiveness of Nd:YAG laser and Diode laser in managing physiologic gingival melanin pigmentation, and concluded that both laser types were effective without any significant difference observed between them (18). Moreover, Moeintaghavi et al conducted a study comparing the effectiveness of CO2 and diode lasers for gingival depigmentation.…”

Comparison of the Diode Laser Wavelengths 445 nm and 810 nm in Gingival Depigmentation – A Clinical Evaluation

“…In the comparison of the Nd:YAG laser and the Diode laser in the management of physiologic gingival melanin pigmentation, it was concluded that Both Nd:YAG and diode lasers were effective in the management of physiologic gingival pigmentations. 15 Regarding using lasers for gingival depigmentation, Murthy et al reported that in general lasers are an effective and safe method for gingival depigmentation. Healing was uneventful and no repigmentation occurred.…”

Management of gingival hyperpigmentation induced by increased ferritin level in a HbS‐β+ thalassemia patient using diode laser

“…Moreover, it was shown that laser techniques associated with less postoperative complications such as pain, bleeding, discomfort, and infection when compared to conventional surgical techniques. 16 , 28 , 29 , 30 , 31 Also, it is required to apply periodontal pack after gingival depigmentation using conventional techniques, whereas, when using lasers, there is no need for it, because a white fibrin slough will appear in the first days following the procedure, which will serve as a biological wound dressing that seals the ends of sensory nerves. 32…”