Effects of different treatments on chemical and morphological features of eroded dentin.
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| Title: | Effects of different treatments on chemical and morphological features of eroded dentin. |
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| Authors: | Moura, Sandra Kiss1,2 kissmoura@gmail.com, Lopes, Carolina Cury1, Trevelin, Livia Tosi3, Matos, Adriana Bona3, Martinez, Íssis Virgínia Luque4, Estevam, Marcelo5, Bussadori, Sandra Kalil2 |
| Source: | Lasers in Medical Science. Sep2018, Vol. 33 Issue 7, p1441-1446. 6p. |
| Subjects: | Dentin, Tooth erosion, Eating disorders, Gastroesophageal reflux, Laser ablation, Laser therapy, Phosphorus analysis, Calcium, Combination drug therapy, Fluorides, Nitrates, Phosphates, X-ray spectroscopy |
| Abstract: | To evaluate the treatment of eroded dentin (Sensodyne Repair & Protect™, Er:YAG laser and combinations). The occlusal surfaces of 25 third molars were sectioned 1.5 mm in thickness. After an erosion cycle (5 min in demineralizing solution + 3 h in remineralizing solution; six cycles a day for 8 days), the samples were divided into five groups (n = 5): (E) erosion - control; (ES) erosion + Sensodyne Repair & Protect (NovaMin); (EL) erosion + Er:YAG laser (40 mJ, 10 Hz, 0.4 W, 50 μs, 3.1 J/cm2, 63 W/cm2); (ELS) erosion + Er:YAG laser + Sensodyne; and (ESL) erosion + Sensodyne + Er:YAG laser. Following storage in ultrapure water (37 °C/14 days), the Ca/P ratio was evaluated by EDXRF and the morphology surfaces examined in SEM. The percentage of exposed dentin tubules was calculated. One-way analysis of variance and Tukey's test at 5% were used to treat the data. The Ca/P ratio was higher in E and ES groups. More exposed dentin tubules were found in E group and less exposed tubules were found in the ES group (p < 0.0001). When the toothpaste and laser were combined, the number of occluded dentin tubules was higher when laser was performed first (ELS). A positive effect was found when the laser and toothpaste were combined. [ABSTRACT FROM AUTHOR] |
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| Database: | Engineering Source |
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