Study Investigating Tooth Movements With Conventional and Computer-Aided Design/Computer-Aided Manufacturing (CAD/CAM) Supported Fixed Appliances

Pilot Study Investigating Tooth Movements With Conventional and CAD/CAM Supported Fixed Appliances

Status

UNKNOWN

Phases

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT00871091

Enrollment

Registered

2009-03-30

Start date

2007-01-31

Completion date

2009-06-30

Last updated

2009-03-30

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Orthodontics, Tooth Movement

Keywords

CAD/CAM, orthodontics, fixed appliance, tooth movement

Brief summary

In orthodontics, conventional fixed appliances, usually consisting of prefabricated components, require step-by-step adjustment in order to move teeth in the planned direction. May treatment be improved with customized archwires? Study hypotheses: * By using CAD/CAM in planning and fabrication of customized archwires, unnecessary tooth movements can be avoided and teeth can be moved on their direct path to the intended position. * The application of CAD/CAM improves reproducibility, efficiency, and quality of orthodontic treatment.

Interventions

PROCEDUREorthodontic treatment with customized archwires

customized arch wires depending on the amount of needed tooth movement

PROCEDUREorthodontic treatment with prefabricated archwires

prefabricated archwires depending of the needed movement of the teeth

PROCEDUREorthodontic tx w/ conventional archwires+manual adjustments

conventional archwires modified by manual adjustment, depending of needed correction

Study design

Allocation

RANDOMIZED

Intervention model

PARALLEL

Primary purpose

TREATMENT

Masking

NONE

Eligibility

Sex/Gender

ALL

Age

18 Years to 35 Years

Healthy volunteers

Inclusion criteria

* treatment of front teeth with fixed orthodontic appliances is indicated * complete secondary dentition * age: 18-35 * in healthy general condition * patient is informed about study and agrees to participate

Exclusion criteria

* treatment of premolars and molars is necessary * syndromes affecting bones and teeth * cleft lip and palate * inflammation or reduction (more than 50%) of periodontium * intake of drugs affecting tooth movement and bone formation * disturbance of bone formation * disturbance of thyroidal function * pregnancy * participation in additional study affecting oral hygiene * former therapy with ionized radiation or cytostatic drugs * caries (active phase) * alcohol dependency

Design outcomes

Primary

Measure	Time frame
Sum of differences between resulted and shortest path of tooth movements in each patient	measurements every 14 days until end of treatment

Secondary

Measure	Time frame
Difference between resulted and shortest path of movements for each tooth	measurements every 14 days until end of treatment

Countries

Germany

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026