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Clinical Performance of Onlay Restorations After Cervical Margin Relocation (CMR)

Effect of Cervical Margin Relocation With Different Restorative Materials on Three-year Clinical Performance and In-Vitro Fracture Resistance of Indirect Hybrid Ceramic Onlay Restorations

Status
UNKNOWN
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06155773
Enrollment
64
Registered
2023-12-04
Start date
2021-08-24
Completion date
2025-01-31
Last updated
2023-12-08

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

Conditions

Dental Caries

Brief summary

The current study intends to evaluate the effect of cervical margin relocation with different restorative materials on three-year clinical performance of indirect Computer-Aided-Design (CAD)/ Computer-Aided-Manufacture (CAM) onlay restorations. This study is designed to test the null hypothesis that the three-year clinical performance of onlay restorations is significantly affected by cervical margin relocation with different restorative materials.

Interventions

PROCEDUREHighly viscous glass ionomer (cervical margin relocation)

different dental restorative materials used to relocate deep cervical margins before receiving onlay restorations

PROCEDURELow shrinkage Flowable Composite (cervical margin relocation)

different dental restorative materials used to relocate deep cervical margins before receiving onlay restorations

PROCEDUREResin Modified Glass Ionomer (cervical margin relocation)

different dental restorative materials used to relocate deep cervical margins before receiving onlay restorations

PROCEDUREBioactive Ionic Resin (cervical margin relocation)

different dental restorative materials used to relocate deep cervical margins before receiving onlay restorations

Sponsors

Mansoura University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)

Masking description

double blind

Eligibility

Sex/Gender
ALL
Age
20 Years to 40 Years
Healthy volunteers
Yes

Inclusion criteria

* Good general health * Good oral hygiene * Patient aging 20-40 y * Patients with proximal deep carious lesion * International caries detection and assessment system (ICDAS) 4 or 5 that diagnosed clinically and radiographically. * Normal response to a vitality test.

Exclusion criteria

* poor general health * poor oral hygiene * Teeth would need direct pulp capping * Teeth act as abutment for fixed or removable prosthesis. * patients with excessive parafunctional habits * Patient potentially unable to be compliant to recall visits

Design outcomes

Primary

MeasureTime frameDescription
Gingivathree year follow upGingival Index Scale from 0 to 3 will be used for evaluation considering that score 0 represents normal gigiva while score 3 represents severely inflamed gingiva
Modified World Dental Federation (FDI) clinical Criteriathree year follow up1. Functional Properties of restorations: 1. Fracture of material and retention 2. Marginal adaptation 3. Radiographic examination 2. Biological Properties of restorations 1. Postoperative (hyper-sensitivity and tooth vitality 2. Recurrence of caries 3. Tooth integrity (enamel cracks, tooth fractures) 4. Periodontal Response 5. Adjacent mucosa Descriptive scale from 1 to 5. Note: 1 is clinically excellent 5 is clinically poor. Scores(1-3) are considered sufficient The overall cumulative success rate of restorations will be evaluated

Countries

Egypt

Outcome results

None listed

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