Efektivitas Konsentrat Jeruk Berastagi (Citrus Nobilis Var. brastepu) sebagai Bahan Etsa terhadap Shear Bond Strength (SBS) Braket Ortodonti

Abstract

Effectiveness of Berastagi Orange Concentrate (Citrus Nobilis Var. brastepu) as an Etching Material on Orthodontic Bracket Shear Bond Strength xiii + 60 pages The shear bond strength of orthodontic brackets is obtained from the bonding material’s ability to withstand applied pressure; therefore, to support the bonding strength of brackets, phosphoric acid gel is commonly used. A natural alternative is citric acid gel from Berastagi orange (Citrus Nobilis Var. brastepu). Citric acid is a weak organic acid that, similarto EDTA, acts as a chelating agent. Citric acid is highly biocompatible and is used to remove the smear layer. This study aimed to determine the difference in the mean shear bond strength of orthodontic brackets after the application of Berastagi Orange Consentrate 30%, 40%, and 50%, and 37% phosphoric acid gel. This research is an experimental laboratory study. The research samples were maxillary premolar teeth that underwent prophylaxis and were bonded with stainless steel orthodontic brackets (Ormco brand), totaling 28 samples, then divided into 4 treatment groups. Based on the study, it can be concluded that the mean shear bond strength values of the orthodontic brackets in the 30% citric acid gel group (5.446 ± 1.674 MPa), 40% citric acid gel group (4.537 ± 2.053 MPa), and 50% citric acid gel group (5.298 ± 2.493 MPa), and the 37% phosphoric acid gel group (4.048 ± 1.209 MPa). Conclusion of the research is there were no statistical differences in the mean shear bond strength between the 30% Berastagi Orange Concentrate gel group and the 37% phosphoric acid gel group, between the 40% Berastagi Orange Concentrate gel group and the 37% phosphoric acid gel group, and between the 50% Berastagi Orange Concentrate gel group and the 37% phosphoric acid gel group.