Dental Malocclusion
Conditions
Interventions
Group A: Full-time retention using a Hawley retainer:Hawley retainer
Group B: Full-time retention using a fixed lingual retainer:fixed lingual retainer
Group C: Full-time retention using a pressure-formed retainer made with traditional methods:pressure-formed retainer made with traditional methods
Group D: Full-time retention using a pressure-formed retainer fabricated by an automated manufacturing system.:pressure-formed retainer fabricated by an automated manufacturing system
Sponsors
Shanghai Stomatological Hospital, Fudan University
Eligibility
Sex/Gender
All
Inclusion criteria
Inclusion criteria: 1. The brackets have not been removed after non-extraction fixed orthodontic treatment; 2. Have good oral hygiene status, no untreated caries, periodontal disease or other oral diseases that may affect the results of the experiment; 3. I or my guardian should be able to understand the experimental process and be willing to actively cooperate with the completion of intraoral scanning and related data provision; 4. No contraindications to intraoral scanning, such as allergy to scanning equipment materials, severe swallowing reactions, etc.; 5. I agree that my intraoral scan data will be used for research purposes and will be able to provide complete pre- and post-treatment data.
Exclusion criteria
Exclusion criteria: 1.Orthodontic treatment has not been completed; 2.Have active periodontal disease, untreated dental caries, or other oral diseases that may affect the experimental results; 3.There are large areas of restorations, implants, or other hardware in the oral cavity that may affect the accuracy of intraoral scanning; 4.The applicant or his/her guardian is unwilling to cooperate with the experiment, or unable to understand the experimental process; 5.Inability to provide complete pre- and post-treatment intraoral scan data, or refusal of data to be used for research; 6.Concurrent participation in other clinical studies that may affect the results of this study.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| PAR Index; | — |
Countries
China
Contacts
Public ContactZhicheng Gong
Shanghai Stomatological Hospital, Fudan University
Outcome results
None listed