Influence of Superstructure Material on Crestal Bone Resorption and Esthetic Outcome of Dental Implants

Study Overview
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Brief Summary
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The aim of this study is to evaluate the influence of superstructure material on crestal bone resorption and esthetic outcome of dental implants in patients with single missing tooth in the aesthetic zone.

Detailed Description
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The transfer of occlusal forces to the implant bone interface greatly influence the long term prognosis of implants and crestal bone resorption. Accordingly this study will investigate the influence of metal ceramic crowns and monolithic zirconia crowns on crestal bone resorption under loading. Also these crown materials greatly influence the final aesthetic outcome of the definitive restoration, which will be evaluated using the pink and white aesthetic scoring systems.

Official Title
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Influence of Superstructure Material on Crestal Bone Resorption and Esthetic Outcome of Dental Implants

Conditions
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Single Tooth Dental Implant

Intervention / Treatment
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* Procedure: monolithic zirconia crown
* Procedure: metal ceramic crown


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Patients above 18 years old. Patients able to read and sign the informed consent document. 3. Medically free patients or with controlled systemic disease. 4. Patients with good bone quality and quantity evaluated using C.B.C.T. 5. Patients willing to return for follow-up examinations and evaluation. 6. Patients having single missing recently extracted premolar tooth. Exclusion Criteria: Young patients in growth stage. Patients with unsuitable implantation sites (patients with major boney defects or sever bone resorption) Pregnant women to avoid any complication that may occur in dental office. Patients with uncontrolled systemic disease (hypertensive patient or uncontrolled diabetic patient) Psychiatric problems or unrealistic expectations. Multiple adjacent missing teeth. Patients with bad oral hygiene

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 60 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Quadruple


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Monolithic zirconia crowns<br>New crown material to restore dental implants | Procedure: monolithic zirconia crown<br>* New crown material used as final restoration for dental implants<br>|
| Active Comparator: metal ceramic crowns<br>conventional crown material for restoring dental implants | Procedure: metal ceramic crown<br>* Conventional crown material used as final restoration for dental implants<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| P.E.S. | Pink aesthetic scoring system for soft tissue aesthetics | 1 year | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| crestal bone resorption |  | 1 year |