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No-preparation Resin Bonded Bridges for the Replacement of Single Missing Teeth

NCT03029637 · Status: UNKNOWN · Phase: NA · Type: INTERVENTIONAL · Enrollment: 90

Last updated 2020-08-18

No results posted yet for this study

Summary

Tooth replacement is a significant issue in the World. Such replacement is considered important by patients to improve aesthetics, function and quality of life. Tooth replacement is therefore a significant issue. Resin-bonded bridges (RBBs) are conservative and cost-effective tooth replacement option that involves minimal tooth preparation and are secured in place with an adhesive cement by bonding to the outer enamel layer of the tooth. Clinical reports of these prostheses at the University of Hong Kong shows some of the highest success rate and greatest longevity in the dental literature. However, a problem with this type of prosthesis in that it still needs some tooth preparation to accommodate the framework thickness of the bridge. In some patients with tooth wear, this may mean cutting through the enamel crown down into dentine which will weaken the tooth. In light of the tooth preparation some patients will refuse this treatment, in particular patients with dental drill phobias.

The aim of this study is to investigate RBBs with tooth preparation and with no tooth preparation for the replacement of single missing teeth in a randomized controlled trial. However, a significant consequence of a no preparation RBB will mean that after cementation the prosthesis will interfere with the patient's bite, making the bridge prosthesis stand high. This will take time for the patient's original occlusion to re-establish itself by the movement of the tooth supporting the bridge. Despite the success of "supra-occluding" restoration has been reported in some studies, currently neither no preparation nor supraoccluding dental bridges are the standard of care for general dental practitioners and have not been reported on as a clinical trial in the literature. Most symptoms reported for supraoccluding restorations were transient and are reversible. The findings of this research will have significant impact on the teaching and practice for clinical prosthodontics and patient care worldwide. Patients will have a dental prosthesis that requires no dental drilling, no local anaesthetic and will have a stronger tooth supporting the bridge that should have greater longevity. More patients, in particular phobic patients will therefore seek treatment for tooth replacement with this conservative treatment option.

Conditions

  • Missing Teeth

Interventions

DEVICE

RBBs with no or minimal preparation of their abutment teeth

Placement of resin bonded bridges on teeth with no or minimal cutting of their supporting teeth

DEVICE

RBBs with routine tooth preparation of their abutment teeth

Placement of resin bonded bridges on teeth after routine cutting of their supporting teeth

Sponsors & Collaborators

  • The University of Hong Kong

    lead OTHER

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
15 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2021-08-31
Primary Completion
2023-12-31
Completion
2023-12-31

Countries

  • China

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT03029637 on ClinicalTrials.gov