Skip to main content
OpenTrials
Completed

NCT Number: NCT04683874

Transfer Accuracy of 3D-printed Indirect Bonding Trays

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.

Completed

Looking for future studies?

Notify Me

Key information

Conditions

Dental Bonding

Age range

12 year–65 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

University of Minnesota

Minneapolis, Minnesota, 55455, United States

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

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

Treatment and study plan

3D printed tray

Device

3D printed tray

Primary outcomes

  1. Transfer accuracy

    Time frame: 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.

Sponsors and collaborators

Lead sponsor

Thorsten Gruenheid

Other

Registry information

Official study title

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

Important dates

Study start
2020
Primary completion
2021
Study completion
2021
First posted
Dec 24, 2020
Registry last updated
Sep 30, 2021

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

Related clinical trials

Published trials that share one or more normalized conditions with this study.