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Accurate bracket placement using a computer-aided design and computer-aided manufacturing-guided bonding device: An
Chaoran Xue1, Hui Xu1, Yongwen Guo1
1Department of Orthodontics and Paediatrics, State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China.
This study evaluated a new protocol for precise bracket placement using a computer-aided design and computer-aided manufacturing-guided bonding device. The protocol demonstrated high accuracy and no bracket failures after three months, indicating its clinical effectiveness.
Area of Science:
- Orthodontics
- Dental Technology
- Biomaterials
Background:
- A novel protocol was developed for accurate in vivo bracket placement.
- This protocol integrates precise operative procedures with a CAD/CAM-guided bonding device.
- A 3D assessment was conducted to evaluate the protocol's accuracy.
Purpose of the Study:
- To assess the accuracy of bracket placement using a CAD/CAM-guided bonding device.
- To evaluate positional and orientational deviations in bracket placement.
- To determine the incidence of bracket failures over a 3-month follow-up period.
Main Methods:
- Ten consecutive patients underwent bracket placement using the guided device.
- Bracket positions and orientations were measured to quantify deviations.
- Patients were monitored for 3 months to record any bracket failures.
Main Results:
- A total of 205 brackets were successfully bonded and evaluated.
- Most brackets showed deviations within clinically acceptable ranges (0.5 mm translation, 2° orientation).
- Only 15.12% of brackets exceeded a 2° torque deviation; no bracket failures occurred within 3 months.
Conclusions:
- The protocol effectively transfers planned digital bracket positions to the patient's dentition.
- High positional accuracy was achieved with the CAD/CAM-guided bonding device.
- The protocol shows promise for improving the precision of orthodontic treatment.
