Modification of Curing Light Duration through Indirect Bonding Trays
Abstract
Objective: The studys aim is to determine if variation of curing light duration and strength affects shear bond strength (SBS) when using an indirect bonding tray (IBT) in comparison to direct bonding. Materials and Methods: 288 bovine incisors were divided into 3 groups: direct bonding with no IBT, IBT, and IBT with a 3 second cure after IBT removed. The 3 groups were divided into 2 subgroups based on curing light power: Standard (1200 mW/sq cm) and Xtra (3200 mW/sq cm). Each subgroup was divided into 4 groups based on curing time: 5, 10, 15, 20 seconds for Standard and 1, 3, 6, 12 seconds for Xtra (n=12). Brackets were cured with a LED device (VALO Ortho, Ultradent, South Jordan, Utah) and a 3 mm Star VPS (Danville Materials, Carlsbad, California) transfer tray was used for IBTs. 24 hours after bonding, brackets were subject to an SBS test performed with the Instron universal testing machine, and the adhesive remnant index (ARI) was recorded for each bracket. Results: 2-way ANOVAs with Tukey post hoc tests identified statistically significant differences between the groups (p<0.05) Conclusion: SBS is affected by curing through an IBT, and curing light duration must be modified based on power setting.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 2021
- Accession Number
- AD1145100
Entities
People
- Jeremy F. Scarpate
- Kraig S. Vandewalle
- Mary Catherine M. Mohr
Organizations
- 59th Medical Wing