ISSN : 2663-2187

Assessment of shear bond strength between composite resin and enamel surface after treating with acid etching and laser etching

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Dr Syed yasir qadiri Dr Malik Mahmud Iqbal Hussain
» doi: 10.33472/AFJBS.6.9.2024.1403-1407

Abstract

This study was conducted for the assessment of shear bond strength between composite resin and enamel surface after treating with acid etching and laser etching. Material and methods: 50 newly extracted, non-carious, intact permanent human central incisors were gathered. Any signs of fissuring or cracking in the teeth had been ignored. To reduce bacterial growth, all teeth were kept at 4°C in a 5% formalin solution that had been buffered with phosphate. Teeth had been cleaned with a gauge piece as well as let to air dry before use. Prior to the studies, teeth were set into a resin block, exposing the coronal part of the tooth with the use of a 2 × 2 metal block. For the purpose of evaluating bonding to enamel following acid etching (Group A) as well as laser etching (Group B), 50 teeth were utilized. The teeth were randomly assigned to each of the two groups (n = 25 teeth per group). Statistical analysis was conducted using SPSS software. Results: In this study, the mean shear bond strength for Group A was found to be 63.79 MPa, but Group B's average shear bond strength was just 32.14 MPa. The samples from the acid etching group showed a much higher mean shear bond strength than the samples from the laser etching group, according to statistical tests. Conclusion: Composites bonded with acid etching showed a greater mean shear bond strength than those bonded with laser etching.

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