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Space closure in adult patients using the segmented arch technique
C Manhartsberger1, J Y Morton, C J Burstone
1University of Connecticut Health Center, School of Dental Medicine, Department of Orthodontics, Farmington 06032.
The Angle Orthodontist
|January 1, 1989
Summary
Modified T-loop appliances offer benefits for periodontally compromised adults needing space closure. These designs provide lower forces and higher moment-to-force ratios, potentially aiding patients with bone loss.
Area of Science:
- Orthodontics
- Biomaterials Engineering
Background:
- Periodontal compromise presents challenges in orthodontic space closure.
- Traditional appliances may exert excessive forces in compromised cases.
Purpose of the Study:
- To present modified appliance designs for space closure in periodontally compromised adult patients.
- To evaluate the force systems and clinical performance of these modified appliances.
Main Methods:
- Utilized TMA T-loops with .016" x .022" and .017" x .025" cross sections.
- Incorporated angulations using concentrated and gradual curvature bends.
- Measured force systems and discussed clinical performance.
- Provided templates for the T-loop designs.
Main Results:
- The modified T-loops produced lower forces compared to conventional designs.
- Higher moment-to-force ratios were achieved with the modified T-loops.
- Clinical performance was discussed in the context of bony loss.
Conclusions:
- Modified TMA T-loops offer a promising approach for space closure in periodontally compromised adults.
- The force systems generated are suitable for managing patients with reduced bone support.
- These appliance designs may improve treatment outcomes for patients with periodontal issues.