Effectiveness and efficiency of a CAD/CAM orthodontic bracket system

Area of Science:

• Orthodontics
• Biomaterials Engineering
• Dental Technology

Background:

• The evolution of orthodontic appliances includes the introduction of straight-wire appliances and, more recently, CAD/CAM technology for personalized devices.
• CAD/CAM technology enables the creation of customized orthodontic appliances, potentially enhancing treatment consistency and efficiency.

Purpose of the Study:

• To compare the clinical effectiveness and efficiency of CAD/CAM customized orthodontic appliances against direct and indirect bonded stock brackets.
• To evaluate treatment outcomes and duration using different bonding methods and appliance types.

Main Methods:

• A retrospective study involving three groups: direct bonded self-ligating, indirect bonded self-ligating, and indirect bonded CAD/CAM self-ligating appliances.
• Assessment of pretreatment records using the American Board of Orthodontics (ABO) Discrepancy Index and posttreatment outcomes via the ABO Cast-Radiograph Evaluation.

Main Results:

• No statistically significant differences were found in treatment outcomes (ABO Discrepancy Index and ABO Cast-Radiograph Evaluation) among the three groups.
• The CAD/CAM group exhibited the shortest treatment duration (13.8 ± 3.4 months) compared to direct bonded (21.9 ± 5.0 months) and indirect bonded (16.9 ± 4.1 months) groups.
• The CAD/CAM group required fewer treatment appointments than the direct bonded group.

Conclusions:

• CAD/CAM orthodontic bracket systems demonstrate comparable effectiveness to standard brackets in achieving treatment outcomes.
• CAD/CAM appliances enhance treatment efficiency, primarily through a reduction in overall treatment duration.
• Further research is warranted to fully elucidate the clinical advantages of CAD/CAM orthodontic appliances.