Research On The Fully Digitalized Workflow Of Metal Orthodontic Appliances

Through a randomized controlled study comparing the clinical efficacy of CAD/CAM fabricated and traditionally cast anterior traction orthodontic appliances. This study included 46 cases of children with skeletal Class III malocclusion during the mixed dentition phase requiring maxillary protraction as subjects. There were 24 males and 22 females, aged between 6 to 11 years. The subjects were randomly divided into two groups, each with 23 cases. The control group was treated with appliances made by traditional casting techniques, while the experimental group was treated with appliances fabricated through a fully digital process. The number of times the appliances fell off was recorded, and changes in soft and hard tissue on lateral cephalograms were measured. Two groups of lateral radiographs, SNA, SNB, and comparisons before and after treatment didn't show any differences (P>0.05); the ANB angle and Co-A, Co-Gn after treatment were significantly increased compared to before (P<0.05). There were no significant differences in the comparison of lateral radiograph data between the two groups, but the number of times the appliance fell off was statistically significant (P<0.05), with the control group having a significantly higher number of detachments than the experimental group. CAD/CAM-assisted full digital process manufacturing of appliances for the treatment of skeletal anterior crossbites, the efficacy is the same as that of appliances made by traditional casting techniques. However, the number of times the appliances fells off is significantly lower than the control group.