Ceramic brackets were introduced in 1987 as a more esthetically pleasing alternative to stainless steel brackets. 1 Two types of ceramic brackets are available according to their distinct differences during fabrication, they are: polycrystalline and monocrystalline (single-crystal) aluminas. 2,3 Both polycrystalline and monocrystalline ceramic brackets possess various base designs such as grooves, beads, or round pits for the purpose of mechanical interlocking between the brackets and the teeth. 4 As bracket bases do not chemically bond to enamel or resin, efforts are made to improve mechanical retention using various designs. ABSTRACTObjective: To evaluate the influence of bracket base designs on shear bond strength of ceramic brackets bonded to natural teeth and to determine the common site of bond failure. Materials & Method:120 therapeutically extracted maxillary first premolars were divided into six groups of 20 samples each and were mounted in resin blocks. Each sample was bonded with bracket of that particular group and subjected to thermocycling. The shear bond strength was measured using Universal Testing Machine. After debonding, the teeth and brackets were examined under stereo-microscope for adhesive remnant index. Result: Ceramic brackets with ball base design (Group MATERIALS AND METHODThe study was conducted in the Department of Orthodontics, ITS-CDSR, Muradnagar, Ghaziabad and ITS EngineeringCollege, Noida. The study was conducted on 120 extracted human maxillary first premolars. All teeth used in the study were extracted therapeutically for orthodontic treatment and were stored in 0.1% thymol solution. The teeth were washed, debrided and then stored in distilled water to prevent dehydration and bacterial growth. The teeth were cleansed and then polished with non-flouridated pumice and rubber prophylactic cup for 10 seconds.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.