Mechanical Complications of Full Arch Monolithic Zirconia Restorations to Restore Completely Edentulous Patients Scanned by Horizontal Scan Bodies; A Case Series

NCT07662590 | Completed

• 1 other identifier: 123678
• Study Type: interventional
• Target: 25
• Locations: 1 country
• Sites: 1

Brief Summary

the study is concerned with assessing retrospectively the survival and complication rates of monolithic zirconia implant-supported fixed full arch dental restoration scanned using scan ladder scan body over a follow-up period of 1 year.

Conditions

Edentulous Jaw

Outcome Measures

Primary Outcomes (1)

• technical complications

  reported any events of complications in the final restoration

  18 months

Secondary Outcomes (1)

• restoration survival

  18 months

Study Arms (1)

using scan ladder scan bodies

EXPERIMENTAL

Restorations were fabricated using fully digital workflow from scanning to fabrication. Scanning was done using intraoral scanner and horizontal scan bodies "scan ladder scan bodies".

Device: scan ladder

Interventions

scan ladder DEVICE

Prosthetic steps with a digital workflow by placing horizontal scan bodies "scan ladder" and using of intraoral scanner "Medit i900" will be done. The final restoration is designed and a monolithic zirconia full arch titanium free restoration was milled and delivered after ensuring passivity and occlusion.

Also known as: horizontal scan body

using scan ladder scan bodies

Eligibility Criteria

• Age: 40 Years - 70 Years
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• \- Any completely edentulous patient (mandible) with an old satisfactory denture requiring an implant-supported restoration.
• Patients aged from 40 to 70, able to sign an informed consent will be considered eligible for this trial.
• Implant sites must allow the placement of four implants.
• Non- heavy Smokers will be included (smoking up to 10 cigarettes/day)
• In case of post-extractive sites, they must have been healed for at least 3-month before being treated in the study.
• Patients with no systemic condition that may interfere with implant placement (e.g., Immunosuppressed or immunocompromised patients, patients under treatment of intravenous amino-bisphosphonates)

You may not qualify if:

• \- Patients with poor oral hygiene and motivation.
• Pregnancy or nursing.
• Drug abusers.
• Psychiatric problems or unrealistic expectations.
• Patients with infection and or inflammation in the area intended for implant placement.
• Patients participating in other studies, if the present protocol cannot be properly adhered to.
• Patients with signs of hyperactive muscles.

Sponsors & Collaborators

• Cairo University: lead

Study Sites (1)

Dr. M.G. Perio and implant center

Cairo, Maadi, 11270, Egypt

Location

MeSH Terms

Conditions

Jaw, Edentulous

Condition Hierarchy (Ancestors)

Jaw Diseases; Musculoskeletal Diseases; Stomatognathic Diseases; Mouth, Edentulous; Mouth Diseases; Tooth Diseases

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: NA
• Masking: NONE
• Purpose: TREATMENT
• Intervention Model: SINGLE GROUP
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Lecturer of Prosthodontics

Study Record Dates

• First Submitted: June 17, 2026
• First Posted: June 23, 2026
• Study Start: December 1, 2024
• Primary Completion: June 1, 2026
• Study Completion: June 15, 2026
• Last Updated: June 23, 2026

Record last verified: 2026-06

Locations

EG (1)