Evaluation of Crestal Bone Loss Around Short Dental Implants As Affected By Two Suprastructure Materials

Not Applicable

• Conditions: Bone Loss
• Interventions: Other: Vita Enamic (Hybrid dental ceramic)

• Registration Number: NCT05066815
• Lead Sponsor: Cairo University

Brief Summary

The aim of the study is to evaluate the crestal bone loss developed around short dental implants after using screw retained Hybrid ceramic crowns when compare to screw retained Lithium Di silicate based ceramic crowns.

Detailed Description

This study will be conducted on patients requiring single implant replacement in the posterior regions of the mandible, admitted to the Outpatient Clinic of Fixed Prosthodontics Department, Faculty of Oral and Dental medicine, Cairo University.

Examination and diagnosis:

1. Selection and examination of the patients according to inclusion and exclusion criteria.

2. Preoperative Cone Beam Computed Tomography (CBCT) to all patients.

3. Primary impression will be taken to produce study cast.

4. Taking a professional photo for the examined posterior area.

5. Patients will be divided into two group:

G1: Short implants will be restored by screw retained Hybrid ceramic crowns G2: Short implants will be restored by screw retained Lithium Di silicate based ceramic crowns

Surgical procedures:

* Implants will be placed following standardized protocol.

* After 4 months the patients re-attended for placement of healing abutments for about (10-14) days and prosthesis fabrication.

Data collection and post operative radio-logical assessment:

-Taking standardized digital peri-apical radio-graph by paralleling technique and film holding device for follow up at 12 months after crowns loading to evaluate crestal bone loss.

Study Timeline

• Study First Submitted: 2021-08-11
• Study First Submitted QC: 2021-09-22
• Study First Posted: 2021-10-04
• Status Verified: 2022-06
• Last Update Submitted: 2022-06-09
• Last Update Posted: 2022-06-10
• Study Start: 2022-10-25
• Primary Completion: 2022-12-25
• Study Completion: 2023-12-01

Recruitment & Eligibility

• Status: UNKNOWN
• Sex: All
• Target Recruitment: 20

Inclusion Criteria

1. Patients within age group of ≥ 18.
2. There should be absence of any systemic diseases.
3. Patients have missing simple posterior tooth
4. Adequate interarch space.
5. Inadequate residual bone height to place standard length implant.
6. Patients with good oral hygiene.

Exclusion Criteria

1. A history that would complicate the outcome of the study, such as alcohol or drug dependency, smoking, poor health, or any other medical, physical or psychological reason that might affect the surgical procedure or the subsequent prosthodontics treatment and required follow-up.
2. Heavy smokers.
3. Poorly controlled diabetes mellitus.
4. Patients on radiotherapy.
5. Patients with temporomandibular disorders

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: SINGLE_GROUP

Arm && Interventions

Group	Intervention	Description
Ceramic superstructure	Vita Enamic (Hybrid dental ceramic)	screw retained lithium disilicate based ceramic crowns
Hybrid superstructure	Vita Enamic (Hybrid dental ceramic)	screw retained hybrid ceramic crowns

Primary Outcome Measures

Name	Time	Method
Crestal Bone Loss Crestal bone loss will be measured using standardized digital periapical radiograph by paralleling technique and film holding device -measuring unit:Milimeters	one year	preventive

Secondary Outcome Measures

Name	Time	Method
screw loosening of crowns screw loosening will be observed by clinical investigation -measuring unit:Binary (Yes/No)	one year	preventive