A Comparison of the Alignment Achieved Using Computer-guided Indirect Bonding of Orthodontic Brackets to Conventional Appliance Placement

Harvard School of Dental Medicine

Status

Unknown

Conditions

Malocclusion

Treatments

Procedure: Motion View

Procedure: Conventional Orthodontic Treatment

Study type

Interventional

Funder types

Other

Identifiers

NCT02221856

Masoud-001

Details and patient eligibility

About

Technological advances have made computer aided orthodontic treatment planning possible. 3D dental scanners and software make it possible to design and approve the outcome before treatment begins. Manufacturers have provided different customized appliance systems that would help practitioners achieve those computer-designed outcomes. The purpose of this study is to determine the accuracy of computer-guided indirect bonding of orthodontic brackets at achieving the predicted alignment and comparing that to the accuracy of conventional orthodontic bracket placement at achieving a predetermined goal. The results of this study will help orthodontists and patients know if there is an advantage to using custom appliances. The study will be a prospective clinical study and will include a total of 60 arches from 30 patients enrolled at the Harvard School of Dental Medicine. 15 patients will be assigned to each of the two study groups (Motion View or control). Both groups will have a 3D intra-oral scan to measure the initial discrepancy and determine the computer-simulated design that the orthodontist believes is the optimized outcome. At the end of each patient's participation, a 3D intraoral scan will be taken and used to assess intra-arch leveling and alignment using ABO's objective grading system's criteria for alignment, marginal ridges and buccolingual inclination. Each arch will then be superimposed on the predicted outcome to determine how accurate each system was at achieving the planned movements in all 3 dimensions. We hypothesize that the accuracy of computer-guided indirect bonding (Motion View) at achieving the predicted outcomes will differ in comparison to the accuracy of conventional orthodontic bracket placement at achieving a predetermined goal.

Enrollment

30 estimated patients

Sex

All

Ages

Under 60 years old

Volunteers

Accepts Healthy Volunteers

Inclusion criteria

Healthy subjects seeking orthodontic care
All permanent teeth must be erupted, excluding second and third molars
Class I, II, and III cases
No more than 7 mm crowding
No more than 45 degrees of rotations

Exclusion criteria

Presence of systemic disease
Craniofacial anomalies, including cleft lip and palate
Syndromes affecting bone or teeth
Congenitally missing teeth, excluding third molars
Presence of bridges or implants
Periodontal disease
Use of drugs affecting tooth movement or bone metabolism (NSAIDS, bisphosphonates, PTH, corticosteroids)
Pregnancy