Comparative Evaluation Between One-piece and Two-piece Implants Supporting Mandibular Screw-retained All-On-Four Full-arch Prosthesis on Peri-implant Bone Changes.

Launched by CAIRO UNIVERSITY · Jan 18, 2025

Keywords

ClinConnect Summary

This clinical trial is designed to compare two types of dental implants—one-piece and two-piece implants—to see how they affect the bone around them after placement. The goal is to understand which type of implant helps to maintain better bone health in patients who are getting a full set of replacement teeth (called a prosthesis) supported by these implants. This study is important for patients who have lost all their teeth and are looking for stable and effective solutions.

To participate in this trial, candidates must be completely edentulous (have no natural teeth) and able to provide informed consent. They should have enough bone in their jaw that's at least 12-14 mm tall and 6 mm wide for the implants to be placed successfully. However, certain people won't be eligible, such as those with specific health issues that could complicate the procedure, heavy smokers, or those with poor oral hygiene. Participants can expect thorough examinations to determine if they qualify and will be monitored throughout the study to assess how well their implants and bone are doing. This research could lead to better dental solutions for many patients in the future.

Gender

ALL

Eligibility criteria

• Inclusion Criteria:
• • Completely edentulous patients, who can sign an informed consent will be considered eligible for this trial.
• • Residual bone height should have sufficient volume and quality for implant placement with a minimum of 12-14 mm in height and 6 mm in width.
• • Patients who already have existing maxillary and mandibular complete dentures, and after examination of the mandibular dentures, technical problems concerning denture design and/or occlusion are found, or who are dissatisfied with the retention and stability of their technically satisfactory mandibular dentures.
• Exclusion Criteria:
• • - Patients with conditions that may contraindicate implant placement (e.g., Immunosuppressed or immunocompromised patients, patients under treatment of intravenous amino bisphosphonates, patients undergoing radiotherapy to the head and neck region).
• • Inadequate mouth opening
• • Heavy smokers, more than 10 cigarettes/day
• • 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.