Periodontal Health and Patient Satisfaction of CAD/CAM Fiber-Reinforced vs. PFM Attachments in Distal Extension RPDs

This randomized clinical trial aims to assess periodontal health and patient satisfaction in mandibular distal extension removable partial dentures using CAD/CAM fiber-reinforced composite versus porcelain-fused-to-metal extracoronal attachments. Twelve participants with bilateral mandibular Kennedy Class I, retaining only the first premolars as the last standing abutments, will be randomly assigned to two groups. Group I will receive OT extracoronal attachments made from CAD/CAM fiber-reinforced composite, while Group II will receive OT extracoronal attachments made from porcelain-fused-to-metal. All participants will then receive a metallic removable partial denture. The null hypothesis states that no significant differences will be observed in periodontal health and patient satisfaction between the two attachment types.

NCT Number	NCT06871020
Lead Sponsor	Ain Shams University
Conditions	Mandibular Distal-extension Prostheses
Enrollment	12 participants
Start Date	2025-01-01
Primary Completion	2026-01-01 (estimated)
Study Completion	2026-03-15 (estimated)
Updated on ClinicalTrials.gov	2026-07-08