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

Not Applicable

• Conditions: Single Tooth Dental Implant
• Interventions: Procedure: metal ceramic crown; Procedure: monolithic zirconia crown

• Registration Number: NCT02937220
• Lead Sponsor: Cairo University

Brief Summary

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

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.

Study Timeline

• Status Verified: 2016-10
• Study First Submitted: 2016-10-16
• Study First Submitted QC: 2016-10-17
• Last Update Submitted: 2016-10-17
• Study First Posted: 2016-10-18
• Last Update Posted: 2016-10-18
• Study Start: 2016-12
• Primary Completion: 2017-12
• Study Completion: 2017-12

Recruitment & Eligibility

• Status: UNKNOWN
• Sex: All
• Target Recruitment: 34

Inclusion Criteria

1. Patients above 18 years old.

2. Patients able to read and sign the informed consent document. 3. Medically free patients or with controlled systemic disease.

3. 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

1. Young patients in growth stage.
2. Patients with unsuitable implantation sites (patients with major boney defects or sever bone resorption)
3. Pregnant women to avoid any complication that may occur in dental office.
4. Patients with uncontrolled systemic disease (hypertensive patient or uncontrolled diabetic patient)
5. Psychiatric problems or unrealistic expectations.
6. Multiple adjacent missing teeth.
7. Patients with bad oral hygiene

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
metal ceramic crowns	metal ceramic crown	conventional crown material for restoring dental implants
Monolithic zirconia crowns	monolithic zirconia crown	New crown material to restore dental implants

Primary Outcome Measures

Name	Time	Method
P.E.S.	1 year	Pink aesthetic scoring system for soft tissue aesthetics

Secondary Outcome Measures

Name	Time	Method
crestal bone resorption	1 year