Volume 2, Issue 4 (10-2017)
J Res Dent Maxillofac Sci 2017, 2(4): 14-19 |
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MalekiGorji M, Banava S, Saghiri M. Enamel Erosion by 15% and 18% Hydrochloric Acid Gels after Different Application Times. J Res Dent Maxillofac Sci 2017; 2 (4) :14-19
URL: http://jrdms.dentaliau.ac.ir/article-1-185-en.html
URL: http://jrdms.dentaliau.ac.ir/article-1-185-en.html
1- Postgraduate Student, Oral & Maxillofacial surgery Dept, dental school, , mohsen_malekigorji@yahoo.com
2- Assistant Professor, Department of operative & Restorative Dentistry and Dental Materials,
3- Assistant Professor, Department of Ophthalmology & Visual Sciences,
2- Assistant Professor, Department of operative & Restorative Dentistry and Dental Materials,
3- Assistant Professor, Department of Ophthalmology & Visual Sciences,
Abstract: (4664 Views)
Background and Aim: Discolored teeth are among the most common reasons behind seeking esthetic dental treatments. Resin infiltration is a new technique for treatment of white spot lesions (WSLs). In this technique, 15% hydrochloric acid (HCl) is used to cause surface erosion. The aim of this study was to compare the enamel erosion caused by 15% and 18% HCl gels after different application times.
Materials and Methods: In this experimental study, sixty sound enamel surfaces were randomly divided into six groups of 10 (G1-G6). G1 specimens were subjected to 15% HCl gel for 75 seconds. G2 and G3 samples were subjected to 15% HCl for 90 and 120 seconds, respectively. G4, G5, and G6 specimens were subjected to 18% HCl for 75, 90, and 120 seconds, respectively. The specimens were then evaluated under a scanning electron microscope (SEM), and the depth of erosion was recorded. Data were analyzed by using one-way analysis of variance (ANOVA) and Tukey’s post-hoc test with a 95% confidence interval.
Results: The depth of erosion in 18% HCl groups was greater than that in 15% HCl groups after the same application times (P<0.05). The depth of erosion was not significantly different between G3 and G4 samples (P>0.05).
Conclusion: The results of this study showed that the application of 18% HCl for 75 seconds is a suitable alternative to the application of 15% HCl for 120 seconds in the resin infiltration technique.
Materials and Methods: In this experimental study, sixty sound enamel surfaces were randomly divided into six groups of 10 (G1-G6). G1 specimens were subjected to 15% HCl gel for 75 seconds. G2 and G3 samples were subjected to 15% HCl for 90 and 120 seconds, respectively. G4, G5, and G6 specimens were subjected to 18% HCl for 75, 90, and 120 seconds, respectively. The specimens were then evaluated under a scanning electron microscope (SEM), and the depth of erosion was recorded. Data were analyzed by using one-way analysis of variance (ANOVA) and Tukey’s post-hoc test with a 95% confidence interval.
Results: The depth of erosion in 18% HCl groups was greater than that in 15% HCl groups after the same application times (P<0.05). The depth of erosion was not significantly different between G3 and G4 samples (P>0.05).
Conclusion: The results of this study showed that the application of 18% HCl for 75 seconds is a suitable alternative to the application of 15% HCl for 120 seconds in the resin infiltration technique.
Type of Study: Original article |
Subject:
Oral & maxillofacial surgery
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