International Journal of Clinical Research

Objective To clarify the value of using non bracket invisible orthodontic appliances combined with anchorage nails in the treatment of Class III malocclusion, with the aim of promoting the research and development of treatment for Class III malocclusion. Methods A total of 40 patients diagnosed with Class III malocclusion clinically in the hospital between February 2022 and February 2025 were selected as the experimental observation subjects. The experimental groups were randomly divided into a control group (20 cases) and an observation group (20 cases). The treatment modes of different groups were carried out using a single non bracket invisible orthodontic appliance or a combination of non bracket invisible orthodontic appliance and anchorage nail. The efficacy of the two groups was analyzed. Results The results of the inter group data comparison showed a significant difference (P<0.05) among the compared subjects, indicating that the observation group had better therapeutic effects; The results between the subjects compared during and after treatment showed significant differences (P<0.05), with the observation group showing better distances and angles in the mesial and distal directions of teeth, buccal and lingual directions, and vertical movement distances and angles. The results between the subjects compared after treatment showed significant differences (P<0.05), with the observation group showing longer root lengths. Conclusion The use of non bracket invisible orthodontic appliances combined with anchorage nails in the treatment of Class III malocclusion is of great significance in improving the therapeutic effect. It can improve the distance and angle between the teeth in the mesial and distal directions, the distance and angle between the buccal and lingual directions, the vertical movement distance and angle, and the length of the tooth root.

Class III malocclusion of bone; Invisible orthodontic appliance without brackets; Supporting nail; Tooth root