2.2.2. Study group.
incisors, tooth misalignment, crossbite, tooth, denture
Adopting a joint orthodontic and restorative plan, first implementing orthodontic treatment, followed by routine restorative interventions, with the same restorative measures as the control group. Orthodontic treatment was performed on a patient-specific basis. Straight wire arch brackets were bonded to the appropriate incisors, and then orthodontic treatment was carried out using elastic arch wires, and then the arch wires were fixed on the fixed appliance, and the dentition and bracket are pulled using rubber bands. Then we aligned and leveled the dentition, adjusted and repair the gap between teeth, corrected crossbite, and adjusted occlusal interference. After that, braces maintenance was given, and restorative therapy was implemented after the orthodontic treatment had achieved the desired efficacy. For those with sparse dentition, centralized dentures should be used to repair the dental gaps; For patients with tilted teeth, orthodontic devices should be used for correction, and denture implantation should be carried out according to the tooth gap; For patients with deep overbite, first use a guide plate appliance to lower the anterior teeth, and then perform denture restoration; For patients with tooth misalignment, the first step is to use a straight wire arch to fix and correct them. After the teeth are pulled to their normal position, the corresponding treatment should be carried out according to the tooth gap. After the repair is completed, the retainers are worn for 6 months.