Abstract
Objective: To explore the cure rate of bracketless invisible headgear orthodontic for opening deep occlusion of anterior teeth. Methods: 10 cases with deep occlusion of anterior teeth were selected. All of the patients were admitted to our hospital from January 2017 to January 2020. All selected patients received bracketless invisible headgear orthodontic treatment. We took CBCT (cone beam CT) before and after orthodontics) lateral cranial radiographs and curved tomographic radiographs to analyze the effect of orthodontic treatment in 10 patients. Results: The changes of 10 patients before and after the orthodontic treatment were not significant in U1-SN, U6-SN, MP-FH (P>0.05); the U1-PP of the patients all decreased by 3~5mm. Compared with the effect before orthodontic treatment, the difference is significance(P<0.05); The tooth loosening didn’t occur obviously in 10 patients. And 2 patients (20.00%) had mild root resorption in the anterior teeth. Conclusion: The effect of invisible headgear orthodontic treatment without brackets is significant in orthodontic treatment of patients with deep occlusion of anterior teeth. The pressure of the upper anterior teeth can reach as low as 3~5mm. The cure rate of deep occlusion of open anterior teeth is high. The orthodontic method is comfortable, with beautiful appearance, which is easier to be accepted by patients.