Comparison of Er,Cr:Ysgg and Diode Laser Effects on Dentin Hypersensitivity: A Split-Mouth Randomized Clinical Trial Publisher Pubmed



Pourshahidi S¹ ; Ebrahimi H² ; Mansourian A¹ ; Mousavi Y³ ; Kharazifard M⁴ Show Affiliations
Source: Clinical Oral Investigations Published:2019

Abstract

Objectives: The aim of the present study was to compare the clinical efficacy of diode laser and Er,Cr:YSGG lasers in the treatment of dentin hypersensitivity. Materials and methods: Thirty-four teeth from 17 patients with dentin hypersensitivity were divided into two groups. In group D, the teeth were irradiated with diode laser beams with a wavelength of 940 nm for 1 min, and in group E, the teeth were irradiated with Er,Cr:YSGG laser beams with a wavelength of 2780 nm and a pulse width of 140–200 μs. Treatments with laser beams were carried out in 1 session. Sensitivity was assessed with air spray and a dental explorer. Pain severity was measured with the use of visual analog scale (VAS) before and after laser application. Results: A decrease in dentin hypersensitivity was observed in both groups immediately, 1 week, and 1 month after laser irradiation. Statistically significant differences were found between the two groups in dentin hypersensitivity severity only 1 month after laser application. The decrease in dentin hypersensitivity by Er,Cr:YSGG laser was significantly higher than that by diode laser at this time interval. Conclusion: The decrease in dentin hypersensitivity after application of Er,Cr:YSGG laser was significantly higher than that after the application of diode laser at 1-month postoperative interval. Clinical relevance: Er,Cr:YSGG laser is a better choice than diode laser for the treatment of dentin hypersensitivity in the short term. © 2019, Springer-Verlag GmbH Germany, part of Springer Nature.