The Tip and Torque adjustable bracket as a new concept in design.

Area of Science:

• Orthodontics
• Biomaterials Science
• Dental Mechanics

Background:

• Traditional orthodontic brackets have fixed tip and torque values.
• Adjusting these parameters often requires complex wire bending or specialized appliances.
• A need exists for pre-adjusted brackets with integrated adjustability for enhanced clinical control.

Purpose of the Study:

• To evaluate a novel bracket design, the tip and torque adjustable bracket (TTAB).
• To determine the TTAB's capacity to independently modify tip and torque values.
• To assess the impact of adjustable tip and torque on orthodontic mechanics.

Main Methods:

• The tip and torque adjustable bracket (TTAB) was tested using an orthodontic measurement and simulation system.
• Independent testing involved Roth prescription values with adjustable tip (+/-10°) and torque (+/-7.5°).
• Canine retraction (sliding mechanics) and torque delivery were evaluated using stainless-steel arch wires, with analysis of variance for statistical significance.

Main Results:

• The TTAB demonstrated baseline performance comparable to control brackets.
• Altering tip values significantly affected canine retraction rates (P < .001).
• Adjusted torque values produced significant moments on the lateral incisor (+9.3 Nmm and -11.9 Nmm; P < .001).

Conclusions:

• The in vitro study validates the concept of a pre-adjusted edgewise bracket with adjustable tip and torque.
• The TTAB offers a novel approach to orthodontic bracket design.
• This innovation has the potential to expand the clinical scope and efficiency of orthodontic treatments.