Evaluation of the Effect of PEEK Versus Co-Cr Digital Telescopic Mandibular Partial Denture on Patient Satisfaction and the Supporting Structure

NCT07849972 | Completed

• 1 other identifier: PPR2201
• Study Type: interventional
• Target: 12
• Locations: 1 country
• Sites: 1

Brief Summary

This study evaluates and compares the clinical performance, retention, and patient satisfaction between Polyetheretherketone (PEEK) and Cobalt-Chromium (Co-Cr) digital telescopic mandibular removable partial dentures. Patients requiring mandibular telescopic removable partial dentures receive digitally fabricated prostheses to assess retention, abutment tooth preservation, periodontal indices, and patient satisfaction over a 12-month follow-up period.

Conditions

Partially Edentulous Jaw

Outcome Measures

Primary Outcomes (1)

• Prosthetic Retention

  Retention force of PEEK vs Co-Cr telescopic dentures measured using a digital force gauge in Newtons.

  Baseline, 6 months, and 12 months

Study Arms (2)

PEEK Telescopic RPD

EXPERIMENTAL

Patients receiving digitally fabricated Polyetheretherketone (PEEK) telescopic mandibular

Device: PEEK Telescopic Removable Partial Denture; Device: Co-Cr Telescopic Partial Denture

Co-Cr Telescopic RPD

ACTIVE COMPARATOR

Patients receiving digitally fabricated Cobalt-Chromium (Co-Cr) telescopic mandibular removable partial dentures.

Device: PEEK Telescopic Removable Partial Denture; Device: Co-Cr Telescopic Partial Denture

Interventions

Co-Cr Telescopic Partial Denture DEVICE

Digitally fabricated Cobalt-Chromium (Co-Cr) telescopic mandibular removable partial denture.

Co-Cr Telescopic RPD; PEEK Telescopic RPD

PEEK Telescopic Removable Partial Denture DEVICE

Polyetheretherketone (PEEK) telescopic mandibular removable partial denture.

Co-Cr Telescopic RPD; PEEK Telescopic RPD

Eligibility Criteria

• Age: 40 Years - 50 Years
• Sex: all
• Healthy Volunteers: No
• Age Groups: Adult (18-64)

You may qualify if:

• Mandibular Kennedy Class I partially edentulous arches. Terminal abutment is bilateral mandibular second premolar. Maxillary arch dentulous or with fixed prostheses. Age 40-50 years. Good oral hygiene and healthy periodontal condition. Healthy mucosa without inflammation or flabby tissues. Teeth free from mobility. Free from systemic, metabolic, or bone diseases.

You may not qualify if:

• Parafunctional habits (bruxism/clenching). Xerostomia or excessive salivation. Temporomandibular joint disorders. Insufficient interarch space. Uncooperative patients.

Sponsors & Collaborators

• Al-Azhar University: lead

Study Sites (1)

Faculty of Dental Medicine, Al-Azhar University

Cairo, Cairo Governorate, 11884, Egypt

Location

MeSH Terms

Conditions

Jaw, Edentulous, Partially

Condition Hierarchy (Ancestors)

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

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: NONE
• Purpose: TREATMENT
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Dentist at Medical Administration Al-Azhar University

Study Record Dates

• First Submitted: September 24, 2026
• First Posted: September 30, 2026
• Study Start: December 28, 2023
• Primary Completion: June 21, 2026
• Study Completion: June 21, 2026
• Last Updated: September 30, 2026

Record last verified: 2026-09

Data Sharing

• IPD Sharing: Will not share

Locations

EG (1)