Dentoskeletal effects of clear aligners used to distalize maxillary molars in adult patients

Completed

• Conditions: Skeletal Class I or Class II malocclusion and a bilateral end-to-end class II molar relationship; Digestive System

• Registration Number: ISRCTN66553029
• Lead Sponsor: niversity of Torino (Italy)

Brief Summary

Not available

Detailed Description

Not available

Study Timeline

• Study Start: 2015-11-12
• Last Update Posted: 17 October 2016

Recruitment & Eligibility

• Status: Completed
• Sex: All
• Target Recruitment: 30

Inclusion Criteria

1. Age over 18 years old
2. Skeletal Class I or Class II malocclusion and a bilateral end-to-end class II molar relationship
3. Normodivergence on the vertical plane (SN/GoGn angle less than 37 degrees)
4. Mild crowding in the upper arch (= 4mm)
5. Standardized treatment protocol
6. Good compliance during the treatment (wearing aligners time: =20 hours per day)
7. Absence or previous extraction of the upper third molars
8. Good quality radiographs, with adequate landmark visualization and head rotation control

Exclusion Criteria

1. Transversal dental or skeletal discrepancies
2. Vertical dental or skeletal discrepancies
3. Extraction treatment (except for third molars)
4. Unilateral distalization
5. Signs and/or symptoms of temporomandibular disorders (TMDs) accordingly to Diagnostic Criteria for TMDs
6. Periodontal disease
7. Endodontic treatments of the maxillary molars
8. Prosthodontics rehabilitations of the maxillary molars

Study & Design

• Study Type: Observational
• Study Design: Not specified