Patient Satisfaction and Crestal Bone Loss of Polymer Infiltrated Ceramic Network Versus Lithium Disilicate Implant Hybrid Abutment Crowns in Esthetic Zone

Status

UNKNOWN

Phases

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT03333889

Enrollment

Registered

2017-11-07

Start date

2018-01-31

Completion date

2019-04-30

Last updated

2017-11-07

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

Conditions

Hybrid Crowns on Single Implants in Esthetic Zone

Brief summary

P: Population: Patients requiring single unit implant restoration in esthetic zone I: Intervention: Polymer-infiltrated-ceramic-network abutment crown (VITA Enamic-VITA Zahnfabrik) C: Comparison: Lithium disilicate ceramic abutment crown (IPS e. max-Ivoclar Vivadent) O: Outcome: patient satisfaction , crestal bone loss and periodontal parameters T: Time: 12 months S :Randomized controlled trial research question:For patients receiving implants in esthetic zone, Does the use of polymer-infiltrated-ceramic-network hybrid abutment crown offer better patient satisfaction , less bone loss and better peri-implant clinical parameters when compared to lithium disilicate hybrid abutment crowns?

Interventions

OTHERVita Enamic hybrid crown

hybrid ceramic material in the form of mesoblocks where the ceramic block is attached to a ti base .The whole assembly is screw retained superstructure.

OTHERemax hybrid crown

high srength glass ceramic that can be milled in sections up to 1mm .

Study design

Allocation

RANDOMIZED

Intervention model

PARALLEL

Primary purpose

TREATMENT

Masking

DOUBLE (Subject, Outcomes Assessor)

Masking description

double blind :outcome asessor,participant

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
patient satisfaction	12 months	using visual analogue scale (o-unsatisfied up to max 10 satisfied)

Secondary

Measure	Time frame	Description
crestal bone loss	12 months	using digital subtraction technique

Countries

Egypt

Contacts

Primary ContactInas Mahmoud, assistant lecturer

inas.adel@dentistry.cu.edu.eg+201008402645

Backup ContactReham El Basty, lecturer

Reham.elbasty@dentistry.cu.edu.eg01207169671

Outcome results

None listed

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