Effect Of White Spot Lesion Pretreatment With Silver Diamine Fluoride Compared To Diode Laser On The Shear Bond Strength Of Orthodontic Brackets. An In-Vitro Study

Document Type : Original Article

Authors

1 Orthodontic Department, Faculty of Dentistry, Ain Shams University

2 Operative Dentistry Department, Faculty of Dentistry, Ain Shams University, Cairo, Egypt.

3 Conservative Dentistry Department, New Giza University.

Abstract

Objective: The aim of this study is to determine the impact of silver diamine fluoride and diode laser on the shear bond strength of orthodontic brackets in-vitro.
Materials and methods: Fifty natural human premolars were used in this study. The sample was randomly divided into five groups (10 teeth in each group) as follows: Group 1: control group with no intervention, group 2: SDF application before enamel etching, group 3: SDF application after enamel etching, group 4: DL application before enamel etching, group 5: DL application after enamel etching. Then the bonding procedure followed. Each specimen was tested to failure in shear mode. After debonding, the adhesive remnant index (ARI) was calculated.
Results: The mean shear bond strength of the orthodontic brackets when DL was applied after enamel etching was significantly higher than the other intervention groups but lower than that of the control group. SDF groups and DL group applied before enamel etching had the least mean shear bond strength with no statistically significant difference among them. ARI scores for the different groups indicated no significant differences in their distribution frequencies.
Conclusions: SDF and DL maintained high shear bond strength to orthodontic brackets. ARI score showed no statistically significant difference in failure site between all groups.

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