Comparative Evaluation of the Effects of Nd:YAG Laser and a Desensitizer Agent on the Treatment of Dentin Hypersensitivity: A Clinical Study

Autor(es)

Lopes, Anely Oliveira ^[1] ; Correa Aranha, Ana Cecilia ^[1]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Dept Restorat Dent, Special Lab Lasers LELO, Sch Dent, BR-05508900 Sao Paulo - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Photomedicine and Laser Surgery; v. 31, n. 3, p. 132-138, MAR 2013.
• Citações Web of Science: 20

Resumo

Objective: The aim of this randomized longitudinal clinical study was to assess different treatment protocols for dentin hypersensitivity with high-power laser, desensitizing agent, and its association between high-power laser and desensitizing agent, for a period of 6 months. Background data: The literature shows a lack of treatment for dentin hypersensitivity, and lasers are contemporary alternatives. Methods: After inclusion and exclusion analysis, volunteers were selected. The lesions were divided into three groups (n = 10): G1, Gluma Desensitizer (Heraeus Kulzer); G2, Nd:YAG Laser (Power Laser (TM) ST6, Lares Research (R)) contact mode, laser protocol of 1.5 W, 10 Hz, and 100 mJ, approximate to 85 J/cm(2), four irradiations performed, each for 15 sec, in mesiodistal and occluso-apical directions, totaling 60 sec of irradiation with intervals of 10 sec between them; G3, Nd:YAG Laser + Gluma Desensitizer. The level of sensitivity to pain of each volunteer was analyzed by visual analog scale (VAS) using cold air stimuli and exploratory probe 5 min, 1 week, and 1, 3, and 6 months after treatment. Data were collected and subjected to statistical analysis that detected statistically significant differences between the various studied time intervals of treatments (p > 0.05). Results: For the air stimulus, no significant differences were found for each time interval. For the long-term evaluation, all groups showed statistical differences (p > 0.05), indicating that for G2 and G3, this difference was statistically significant from the first time of evaluation (post 1), whereas in G1, the difference was significant from the post 2 evaluation (1 week). Comparison among groups using the probe stimulation showed significant differences in pain (p < 0.001). Only in G1 and G3 did this difference become significant from post 01. Conclusions: All protocols were effective in reducing dentinal hypersensitivity after 6 months of treatment; however, the association of Nd: YAG and Gluma Desensitizer is an effective treatment strategy that has immediate and long-lasting effects. (AU)

• Processo FAPESP: 11/17701-6 - Avaliação clínica de diferentes protocolos no tratamento da hipersensibilidade dentinária cervical
• Beneficiário: Ana Cecília Corrêa Aranha
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 10/13232-9 - Avaliação clínica de diferentes protocolos no tratamento da hipersensibilidade dentinária cervical
• Beneficiário: Anely Oliveira Lopes
• Modalidade de apoio: Bolsas no Brasil - Mestrado