Failing Dental Composite Restorations
Conditions
Keywords
Repair, Replace, Composite, restoration, failing dental restoration, filling, dental, dentistry
Brief summary
The objective of this trial is to compare the success (as assessed by a pre-defined set of outcome) of failing composite resin restorations that are repaired using diamond bur induced surface abrasion, to those that are completely replaced. It is hypothesized that both treatment will have comparable success rate.
Detailed description
This study is a single-blind randomized non-inferiority trial using parallel groups. Patients recruited into the study will be randomly assigned to one of two treatment groups. Subjects allocated to Group 1 will have their defective restoration completely replaced while subjects allocated to Group 2 will have their defective restoration repaired. The success of the treatments will be assessed immediately following the intervention (baseline) and 12 months later.
Interventions
PROCEDURERepair
PROCEDUREReplace
Sponsors
Dalhousie University
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Investigator, Outcomes Assessor)
Eligibility
Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No
Inclusion criteria
* Patients of the Dalhousie University Dental Clinic who are: * Age 18 and over * Capable of providing informed consent * Asymptomatic permanent teeth with class III, IV, V or veneer composite restorations on the facial/buccal surface, requiring treatment (e.g. stain, chipping or color discrepancy). * Restoration must present with a portion (mesial, distal, gingival or occlusal) that can be completely retained to allow repair.
Exclusion criteria
* Patients with contra-indications for regular dental treatment based on their medical history * Teeth with active caries * Teeth with multiple overlapping composite restorations * Patients with uncontrolled periodontal disease * Restorations smaller than 3mm diameter
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Success rate | 12-month | The primary outcome will be the success of the restoration. This will be assessed using the modified U.S. Public Health Service (USPHS) criteria as first described by Cvar and Ryge (1971) and adapted by Wilson et al (2002). |
Secondary
| Measure | Time frame |
|---|---|
| Survival | 12-month |
Countries
Canada
Outcome results
None listed