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Evaluation of a "Flash-free" Adhesive Resin for Orthodontic Bracket Bonding

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ClinicalTrials.gov Identifier: NCT02030002
Recruitment Status : Active, not recruiting
First Posted : January 8, 2014
Last Update Posted : January 31, 2018
Sponsor:
Collaborator:
3M
Information provided by (Responsible Party):
University of Minnesota - Clinical and Translational Science Institute

Brief Summary:
The purpose of this study is to compare bonding time, bond survival, amount of adhesive remaining on the tooth surface after bracket debonding, and time required for adhesive remnant cleanup between a new "flash-free" and a conventional adhesive resin for orthodontic bracket bonding.

Condition or disease Intervention/treatment Phase
Malocclusion Device: APC Flash-Free Adhesive Coated Appliance System Device: APC II Adhesive Coated Appliance System Not Applicable

Detailed Description:
Patients presenting for comprehensive orthodontic treatment with fixed appliances at the University of Minnesota, who are willing to participate, will be included in the initial study. Selection criteria will include full permanent dentition through the first molars, teeth with sound, non-carious buccal enamel and no pretreatment with chemical agents such as hydrogen peroxide, and no previous orthodontic treatment with fixed appliances. The patients will have their maxillary incisors, canines, and premolars bonded with ceramic orthodontic brackets pre-coated with a "flash-free" adhesive resin (Clarity Advanced Brackets APC flash-free, 3M Unitek, Monrovia, CA, USA) on one side and a conventional adhesive resin (Clarity Advanced Brackets APC II, 3M Unitek) on the other side. The side allocation and order of bonding will be randomized for each patient.

Study Type : Interventional  (Clinical Trial)
Estimated Enrollment : 45 participants
Allocation: Randomized
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Other
Official Title: Use of a "Flash-free" Adhesive Resin for Orthodontic Bracket Bonding: a Clinical Study of Bonding Time, Bond Survival, and Adhesive Remnant Cleanup
Study Start Date : October 2013
Estimated Primary Completion Date : October 2018
Estimated Study Completion Date : October 2018

Arm Intervention/treatment
Experimental: APC Flash-Free Adhesive Coated Appliance System
APC Flash-Free Adhesive Coated Appliance System
Device: APC Flash-Free Adhesive Coated Appliance System
APC Flash-Free Adhesive Coated Appliance System

Active Comparator: APC II Adhesive Coated Appliance System
APC II Adhesive Coated Appliance System
Device: APC II Adhesive Coated Appliance System
APC II Adhesive Coated Appliance System




Primary Outcome Measures :
  1. Bonding time [ Time Frame: At appliance placement, 30 minutes ]
    It is hypothesized that there is no significant difference in bonding time between brackets bonded with the "flash-free" adhesive and those bonded with a conventional adhesive.

  2. Bond survival [ Time Frame: Over the course of a 2-year treatment at 4-week intervals. ]
    It is hypothesized that there is no significant difference in bond failure rate between brackets bonded with the "flash-free" adhesive and those bonded with a conventional adhesive.

  3. Amount of adhesive remaining on the tooth surface after bracket debonding [ Time Frame: At completion of treatment, 10 minutes. ]
    It is hypothesized that there is no significant difference in the amount of adhesive remaining on the tooth surface after bracket debonding between brackets bonded with the "flash-free" adhesive and those bonded with a conventional adhesive.

  4. Time required for adhesive remnant cleanup [ Time Frame: At completion of treatment, 30 minutes. ]
    It is hypothesized that there is no significant difference in time required for adhesive remnant cleanup after debonding between brackets bonded with the "flash-free" adhesive and those bonded with a conventional adhesive.



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Ages Eligible for Study:   10 Years to 60 Years   (Child, Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes
Criteria

Inclusion Criteria:

  • Full permanent dentition including incisors, canines, premolars, and first molars
  • Teeth with sound, non-carious buccal enamel and no pretreatment with chemical agents such as hydrogen peroxide
  • No previous orthodontic treatment with fixed appliances

Exclusion Criteria:

  • Mental/emotional/developmental disability
  • Cleft lip and/or palate, craniofacial anomaly, or syndrome
  • Obvious oral hygiene issues such as excessive plaque accumulation, gingivitis, and/or pre-existing white spot lesions
  • Prosthodontic or restored substrate extending on the labial surface of maxillary teeth
  • Known allergies to any acrylates contained in the study materials

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT02030002


Locations
United States, Minnesota
University of Minnesota
Minneapolis, Minnesota, United States, 55455
Sponsors and Collaborators
University of Minnesota - Clinical and Translational Science Institute
3M
Investigators
Principal Investigator: Thorsten Gruenheid, DDS, PhD University of Minnesota - Clinical and Translational Science Institute

Responsible Party: University of Minnesota - Clinical and Translational Science Institute
ClinicalTrials.gov Identifier: NCT02030002     History of Changes
Other Study ID Numbers: 1/2013
First Posted: January 8, 2014    Key Record Dates
Last Update Posted: January 31, 2018
Last Verified: January 2018

Additional relevant MeSH terms:
Malocclusion
Tooth Diseases
Stomatognathic Diseases