Clinical Research Directory
Browse clinical research sites, groups, and studies.
Bracket Positioning Techniques and Quality of Orthodontic Finishing
Sponsor: Future University in Egypt
Summary
This three-arm randomized clinical trial compares three orthodontic bracket positioning techniques - Smile Arc Protection (SAP), Smile Arc and Marginal Ridge Approach (SAMRA), and the McLaughlin-Bennett-Trevisi (MBT) bracket placement chart (control) - in young patients with Angle Class I malocclusion and mild-to-moderate crowding treated non-extraction. The primary aim is to determine which technique yields the highest quality of orthodontic finishing, measured with the American Board of Orthodontics Objective Grading System (ABO-OGS). Secondary aims compare anterior tooth tip and torque (assessed by CBCT) and mini-esthetic smile parameters (gingival display, incisal display, buccal corridor, and smile arc, assessed on standardized posed-smile photographs) among the three techniques.
Official title: Comparison of Three Bracket Positioning Techniques (Smile Arc Protection, Smile Arc and Marginal Ridge Approach, and McLaughlin-Bennett-Trevisi) on the Quality of Orthodontic Finishing, Mini-Esthetics, and Anterior Tooth Tip and Torque: A Three-Arm Randomized Clinical Trial
Key Details
Gender
All
Age Range
14 Years - 25 Years
Study Type
INTERVENTIONAL
Enrollment
39
Start Date
2024-07-01
Completion Date
2026-07-01
Last Updated
2026-07-16
Healthy Volunteers
No
Interventions
Smile Arc Protection (SAP) bracket positioning
Bracket positioning by the Smile Arc Protection technique (anterior brackets placed relatively more gingival, referenced to canine crown height).
Smile Arc and Marginal Ridge Approach (SAMRA) bracket positioning; Procedure
Bracket positioning by the Smile Arc and Marginal Ridge Approach (digital workflow referencing the marginal-ridge line and facial axis).
McLaughlin-Bennett-Trevisi (MBT) chart bracket positioning
Bracket positioning by the McLaughlin-Bennett-Trevisi bracket placement chart (bracket-to-incisal-edge distances from the standardized chart).
Locations (1)
Department of Orthodontics, Faculty of Oral and Dental Medicine, Future University in Egypt, Cairo, Egypt
New Cairo, Cairo Governorate, Egypt