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

Status

UNKNOWN

Phases

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT02937220

Enrollment

Registered

2016-10-18

Start date

2016-12-31

Completion date

2017-12-31

Last updated

2016-10-18

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

Conditions

Single Tooth Dental Implant

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.

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

Study design

Allocation

RANDOMIZED

Intervention model

PARALLEL

Primary purpose

TREATMENT

Masking

QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender

ALL

Age

18 Years to 60 Years

Healthy volunteers

Yes

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. 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

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

Design outcomes

Primary

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

Secondary

Measure	Time frame
crestal bone resorption	1 year

Outcome results

None listed

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