None listed
Conditions
Brief summary
This study compares a novel indirect bonding technique with a conventional direct bonding technique for placing attachments in clear aligner orthodontic treatment. The aim is to assess the accuracy of attachment placement and their clinical performance over time. A split-mouth design will be used, with each participant receiving both techniques on different sides of the mouth. It is hypothesised that the indirect bonding technique will provide more precise attachment placement and better short-term clinical outcomes.
Interventions
Participants will undergo clear aligner treatment requiring orthodontic attachment placement. A split-mouth randomized controlled design will be used, in which one side of each participant is randomly allocated to the experimental intervention. The clinical application of the novel indirect bonding procedure is expected to take approximately 10–15 minutes per arch, including transfer tray placement, composite application, and light curing. The experimental intervention is a novel indirect bonding technique. Digitally planned attachment positions will be generated based on intraoral scans using orthodontic planning software. A 3D-printed transfer tray will then be fabricated to guide attachment placement. Attachments will be transferred intraorally using composite resin and light curing. The procedure will be performed by trained orthodontists in a university dental hospital clinic setting. The intervention will be delivered once at the time of initial attachment placement. Standard infection control procedures and manufacturer-recommended bonding protocols will be followed. Operator calibration will be conducted prior to study initiation to ensure consistency. The experimental intervention will be delivered within a single clinical session alongside the control procedure (split-mouth design), with no washout period between sides.
Sponsors
Study design
Eligibility
Inclusion criteria
1. Patients with a full permanent dentition 2. Undergoing clear aligner treatment without brackets 3. Good treatment compliance 4. Teeth included in the study have no obvious structural abnormalities 5. Teeth included in the study are free of caries
Exclusion criteria
1. Dental fluorosis or enamel hypoplasia/hyperplasia 2. Periodontal disease 3. Bruxism or short tooth crowns 4. Teeth with existing restorations 5. Tooth developmental abnormalities, including congenital hypodontia or other developmental defects