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The Shear Bond Strengths of Metal and Ceramic Brackets: An in-Vitro Comparative Study
Y G Reddy1, Rohit Sharma, Ammandeep Singh
1Professor & Head, Department of Orthodontics & Dentofacial Orthopedics, NIMS Dental College and Hospital , Jaipur, Rajasthan, India .
Aim:
This study has compared the Shear Bond Strengths (SBSs) of ceramic brackets and metal brackets.
Materials And Method:
Forty freshly extracted, human maxillary first premolars were selected for bonding. They were equally bonded with ceramic brackets (Transcend series 6000) and metal brackets (Mini Dynalock Straight wire brackets). A no - mix orthodontic adhesive system was used. Their shear bond strengths were measured by using the Instron universal machine.
Results:
The mean bond strength of the ceramic brackets was 20.68 ± 3.89 Mpa and that of the metal brackets was 12.15 ± 1.32 MPa.
Conclusion:
The shear bond strength of the ceramic brackets was found to be superior than that of the metal brackets.
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