Authors : Gunmeen Sadana, Sunil Gupta, Rashu Grover, Harpreet Kaur, Aanchal Sharma
DOI : 10.18231/j.adr.2022.004
Volume : 12
Issue : 1
Year : 2022
Page No : 19-23
Background: The purpose of giving space maintainer in primary dentition is to prevent the migration of adjacent teeth, thus holding space in dental arch for succedaneous tooth to erupt. Molar band is the fundamental component of space maintainer. The retention of band to the tooth surface is important to ensure fixed appliance therapy. Several methods have been described to improve the mechanical retentive surfaces of bands including sandblasting, burs, etc. Sandblasting of the metal surfaces improves the retention by roughening, thereby increasing the surface area and improving the potential for degree of mechanical attachment.
Aim: The aim of the study was to evaluate and compare the forces require to deband preformed pre- sandblasted and preformed in-office sandblasted molar band and to determine which type is successful to ensure superior band retention.
Materials and Methods: Twenty sound permanent molars were selected and equally divided into two groups. In group I, pre sandblasted molar bands were cemented onto the molar teeth and in group II, in-office sandblasted molar bands were cemented onto the molar teeth using ReLyX U200 as luting cement in both. The cemented samples were tested for their resistance to dislodgement on Instron Universal testing machine in tensile mode.
Result: The result showed that the debanding forces required to remove the pre-sandblasted bands were higher as compared to in-office sandblasted molar bands.
Conclusion: Pre-sandblasted bands resulted in greater degree of surface roughness by providing a stronger bond between the band and the tooth as compared to in-office sandblasted bands.
Keywords: Sandblasting, Shear peel bond strength, Orthodontic molar bands