Gingival Recession, Localized
Conditions
Brief summary
The aim of the study is to evaluate the effect of feather edge finish line and deep chamfer finish line on gingival position, bleeding on probing and marginal adaptation.
Detailed description
The aim of the study is to evaluate the effect of feather edge finish line and deep chamfer finish line on gingival position, bleeding on probing and marginal adaptation. Gingival bleeding on probing will be evaluated before treatment. Preparation for all ceramic full coverage restoration will be performed according to manufacturer instructions by one operator. Type of finish line (whether feather edge or deep chamfer finish line) will be selected randomly according to a computer generated randomization list. Restorative margins will be placed subgingivally. Zirconia crowns will be fabricated for the prepared teeth and cemented using resin luting agent. At 6 months and 12 months after the cementation, restorative margin position relative to the gingival margin will be recorded. Bleeding on probing and marginal adaptation will also be recorded.
Interventions
PROCEDUREFeather edge finish line preparation
Tooth preparation with feather edge finish line will be done to posterior teeth to receive all ceramic full coverage zirconia crowns.
PROCEDUREDeep chamfer finish line preparation
Tooth preparation with deep chamfer finish line will be done to posterior teeth to receive all ceramic full coverage zirconia crowns.
Sponsors
Cairo University
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Outcomes Assessor)
Eligibility
Sex/Gender
ALL
Age
18 Years to 50 Years
Healthy volunteers
Yes
Inclusion criteria
* Patients 18 years to 50 years old * Dentate patients planned for a single full coverage restoration in the posterior area. * Patients with no active periodontal disease. * \>2mm of keratinized tissue
Exclusion criteria
* Smoking (\>10 cigarettes a day) * Substance abuse history * Patients with poor oral hygiene and high caries index * Patients suffering from abnormal occlusal habits for example clenching or bruxism * Local or systemic disease (endocrine, renal, hematologic, hepatic, immunosuppressive) * Current steroid/chemotherapy * Head and neck irradiation * Pregnancy * Inability or unwillingness to return for follow up visits.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Position of the margin of the restoration in relation to the gingival margin position | 1 year | Scoring proposed by Paniz et al classified into either subgingival (not visible), equigingival (slightly visible) and supragingival (visible) |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Bleeding on probing | 1 year | Scoring following Ainamo and Bay gingival bleeding index |
Other
| Measure | Time frame | Description |
|---|---|---|
| Marginal adaptation | 1 year | Evaluation using Modified USPHS criteria |
Outcome results
None listed