1Faculty of Dentistry, University of Babylon, Hillah City, Iraq
*Corresponding author: Issam Merzah Abdullah, Faculty of Dentistry, University of Babylon, Hillah City, Iraq, Email: asd.issam@gmail.com
Online published on 2 February, 2019.
This study aimed to evaluate the shear bond strength of metal brackets in total dryness feld and in partial dryness feld to overcome the moisture problem during brackets bonding especially in posterior area. Thirty extracted premolar teeth were divided arbitrarily into two groups. Each one of these groups consisted of 15 teeth framed in an acrylic block. After standard enamel etching procedure, in group (A) the bracket bond in total dryness feld and in group (B) the bracket bond in partial dryness feld by curing only one side and after that moisture the tooth by distal water and complete the bonding of the other side. The rustles show that the shear bond strength of bracket with total dryness (41.9 MPa) was more than partially dryness (28.7 MPa) but statically there is no signifcant between these two groups. The orthodontists can bond the brackets using partial dryness that give him/her the time to complete the bonding and overcome the moisture problem especially in posterior area.
Shear bond strength, Metal brackets, total dryness, Partial dryness
