Status unknownNCT02937220Updated Oct 18, 2016

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

An interventional study of monolithic zirconia crown and metal ceramic crown in Single Tooth Dental Implant, sponsored by Cairo University. Status unknown. Open to participants aged 18 Years to 60 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2016-10-18.

Sponsored by Cairo University · Not applicable, Interventional, and Treatment

The sponsor has not verified this record recently (last verified Oct 2016), so the status shown — last known as Not yet recruiting — may be out of date.

Phase: Not applicable
Study type: Interventional
Enrollment: 34
Allocation: Randomized
Ages: 18 Years to 60 Years
Sex: All

Study 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.

Read the 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.

Conditions studied

Single Tooth Dental Implant

Browse trials for

Bone Resorption 153

In context

Bone Resorption

153 studies on the registry are indexed under Bone Resorption; 25 are open to participants now.

This study's planned enrollment of 34 is above the median of 22 across 133 interventional studies indexed under Bone Resorption.

Browse Bone Resorption studies →

Lead sponsor

Cairo University is the lead sponsor of 4,780 studies on the registry; 1,427 are open to participants now.

Of its 36 completed or terminated interventional studies of FDA-regulated products, 5 (14%) have results posted.

Counted across the registry records on this site, refreshed daily.

Who can participate

Ages eligible: 18 Years to 60 Years
Sexes eligible: All
Accepts healthy volunteers: Yes

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.

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

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

Study design

Phase: Not applicable
Primary purpose: Treatment
Allocation: Randomized
Intervention model: Parallel assignment
Masking: Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment: 34 participants (estimated)

Study arms

Experimental
Monolithic zirconia crowns
New crown material to restore dental implants
Procedure: monolithic zirconia crown
Active comparator
metal ceramic crowns
conventional crown material for restoring dental implants
Procedure: metal ceramic crown

Interventions

Proceduremonolithic zirconia crown
New crown material used as final restoration for dental implants
Proceduremetal ceramic crown
Conventional crown material used as final restoration for dental implants

What researchers measure

Primary outcomes

P.E.S.
Pink aesthetic scoring system for soft tissue aesthetics
Time frame: 1 year

Secondary outcomes

crestal bone resorption
Time frame: 1 year

Study locations

No study locations are listed for this record.

References and documents

Individual participant data

Plan to share: Undecided

No publications or documents are linked to this record.

Updates

Tracking since Sep 25, 2026

No changes since tracking began. The registry record was last updated on Oct 18, 2016, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗

Registry details

Key details

Study ID: NCT02937220
Lead sponsor: Cairo University
Responsible party: Ahmed Roshdy Radwan (Assistant lecturer, Cairo University) — Principal investigator
First posted: Oct 18, 2016
Start date: Dec 2016
Primary completion: Dec 2017 (estimated)
Completion: Dec 2017 (estimated)
Last update: Oct 18, 2016

Oversight

Data monitoring committee: Yes

View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is status unknown, as verified in Oct 2016. You cannot join it, but the record below documents what was studied.

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Discussion

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