Effectiveness of laser therapy over topical desensitising agents in the treatment of dentinal hypersensitivity-A systematic review

Abstract

AIM:To analyze the available scientific evidence on the effectiveness of laser therapy compared to the topical desensitizing agents in the treatment of dentinal hypersensitivity. Materials and methods:A broad literature search was performed using both electronic database and hand search. The databases like COCHRANECENTRAL, MEDLINE, GOOGLE SCHOLAR, EBSCO HOST, PROQUEST were used for online data search and hand search was performed in the central library of the institute to identify the relevant articles. Articles that satisfied the inclusion criteria with description of randomized clinical trials comparing lasers versus topical desensitising agents in the treatment of dentinal hypersensitivity were included. These included studies were subjected to critical analysis following the Cochrane Collaboration tool for evaluating the risk of bias. Results:The initial search resulted in 65 articles; however, 31 of these articles were excluded because they were duplicates and then 20 articles were excluded as they were not clinical trials. After analyzing the full text from 24 clinical trials, 17 were excluded because they did not fulfill all the selection criteria. Our final review included 7 studies. Of these 7 studies 1 study used Nd:YAG laser system, 4 studies used GaALAS laser, one study used Er:YAG laser and one study used both CO2 and Er:YAG laser. Among the seven studies 5 studies reported that the lasers alone or in combination with topical desensitising agents are superior over topical desensitising agents used alone. Remaining 2 studies reported that both lasers and topical desensitising agents were equally effective in reducing dentinal hypersensitivity. Conclusion:With the constraints of limited available literature lasers alone or in combination with topical desensitising agents showed promising results than topical desensitising agent alone and this desensitizing efficacy of lasers was immediate and long lasting.

Emprego de gel de quitosana com própolis para prevenção da erosão dentinária

“…O laser de diodo é um laser de baixa intensidade, foi usado pela primeira vez em um comprimento de onda de 780 por Matsumoto et al em 1985 para tratar a hipersensibilidade, e seu efeito terapêutico é estimado em 85% a 100%, além de apresentar características favoráveis como versatilidade, menor custo e menores dimensões (Kimura et al, 2000;Maenosono et al, 2015;Garcia-Delaney et al, 2017;Pereira et al, 2017;Praveen et al, 2018). Esse comprimento de onda pode atuar promovendo o selamento pela obliteração dos túbulos dentinários por irradiação da dentina exposta ao meio bucal que promove dissolução e a ressolidificação dos cristais de hidroxiapatita (Shwetha;Chandrasekhara;Sudhir, 2017).…”