Dentinal tubule occlusion using Er:YAG Laser: an in vitro study
| Autor: | Huanying Li, Yuee Liang, Hongmin Zhuang, Xingzhu Dai, Wanghong Zhao, Shaowen Xiang |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Materials science
Lasers Solid-State law.invention Dental Occlusion 030207 dermatology & venereal diseases 03 medical and health sciences 0302 clinical medicine stomatognathic system law Dentin medicine Humans General Dentistry YAG laser [Er] Dental occlusion Temperature RK1-715 030206 dentistry medicine.disease Laser medicine.anatomical_structure Tubule Dentinal Tubule Power Dentistry Microscopy Electron Scanning Pulp (tooth) Dentin hypersensitivity Er:YAG laser Scanning electron microscopy Biomedical engineering |
| Zdroj: | Journal of Applied Oral Science, Vol 29 (2021) Journal of Applied Oral Science, Volume: 29, Article number: e20200266, Published: 02 APR 2021 Journal of Applied Oral Science v.29 2021 Journal of applied oral science Universidade de São Paulo (USP) instacron:USP |
| ISSN: | 1678-7765 |
| Popis: | Objectives We analyzed the effects of the Er:YAG laser used with different parameters on dentinal tubule (DT) occlusion, intrapulpal temperature and pulp tissue morphology in order to determine the optimal parameters for treating dentin hypersensitivity. Methodology Dentin specimens prepared from 36 extracted human third molars were randomized into six groups according to the treatment method (n=6 each): control (A); Gluma desensitizer (B); and Er:YAG laser treatment at 0.5 W , 167 J/cm2 (50 mJ, 10 Hz) (C), 1 W , 334 J/cm2 (50 mJ, 20 Hz) (D), 2 W , 668 J/cm2 (100 mJ, 20 Hz) (E), and 4 W and 1336 J/cm2 (200 mJ, 20 Hz) (F). Treatment-induced morphological changes of the dentin surfaces were assessed using scanning electron microscopy (SEM) to find parameters showing optimal dentin tubule occluding efficacy. To further verify the safety of these parameters (0.5 W, 167 J/cm2), intrapulpal temperature changes were recorded during laser irradiation, and morphological alterations of the dental pulp tissue were observed with an upright microscope. Results Er:YAG laser irradiation at 0.5 W (167 J/cm2) were found to be superior in DT occlusion, with an exposure rate significantly lower than those in the other groups (P |
| Databáze: | OpenAIRE |
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