Transfer Accuracy of 3D-printed Indirect Bonding Trays

Transfer Accuracy of 3D-printed Trays for Indirect Bonding of Orthodontic Brackets

Status

Completed

Phases

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT04683874

Enrollment

Registered

2020-12-24

Start date

2020-08-25

Completion date

2021-09-29

Last updated

2021-09-30

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

Conditions

Dental Bonding

Brief summary

This study evaluates the transfer accuracy of 3D-printed trays for indirect bonding of orthodontic brackets in vivo. Accurate placement of orthodontic brackets at the beginning of treatment improves treatment efficiency and shortens treatment time. Indirect bonding is a method of placing orthodontic brackets on a plaster or digital model of the dentition, followed by the transfer of these brackets to the patients' teeth using a transfer tray. Various indirect bonding methods have been developed with the aim of improved bracket positioning and reduced chair time. The success of these methods ultimately depends on how reliably the precise positioning of the brackets on the model can be transferred to the patient's teeth.

Interventions

DEVICE3D printed tray

3D printed tray

Study design

Allocation

Intervention model

SINGLE_GROUP

Primary purpose

DEVICE_FEASIBILITY

Masking

NONE

Eligibility

Sex/Gender

ALL

Age

12 Years to 65 Years

Healthy volunteers

Inclusion criteria

* Adults and children (ages 12 years and older) who are in the permanent dentition.

Exclusion criteria

* Less than 12 years of age, primary or mixed dentition, or bonded orthodontic appliances present, prosthetic restorations on the facial surfaces of teeth, craniofacial anomalies, and dental anomalies such as malformation, microdontia, or severe attrition

Design outcomes

Primary

Measure	Time frame	Description
Transfer accuracy	At time of bonding, i.e. day 1	Transfer accuracy expressed as difference in bracket position between setup and clinical situation, as a result of the indirect bonding procedure. These differences will include both the magnitude and the direction, and will be reported in 6 dimensions; i.e. as mesial-distal, buccal-lingual, and occlusal-gingival linear differences as well as torque, tip, and rotation angular differences. Linear differences will be expressed in millimeters, angular differences will be expressed in degrees.

Countries

United States

Outcome results

None listed

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