Study Comparing Bone Changes Around Different Angled Posterior Implants in Patients Receiving All on Four Dental Prosthesis

What this Trial Is About

Researchers are evaluating bone height changes around different implant placements in patients receiving a type of dental restoration called the All on Four technique. The study compares two approaches one using two front implants and two back implants tilted at a 30-degree angle, and another with back implants tilted at a 45-degree angle. The goal is to understand how these implant angles affect bone height using advanced imaging. All participants will receive upper complete dentures supported by soft tissue and a lower All on-4 screw-retained prosthesis. They will be split into two groups Group I will get back implants tilted at 30 degrees, and Group II will have back implants tilted at 45 degrees, with both groups receiving two front implants placed straight. After three months of healing, the prostheses will be functionally loaded. Participants will visit the clinic after surgery, at denture insertion, and at 6 and 12 months follow-up for check-ups. Bone height around the implants will be assessed using cone beam CT scans at these times. The study tracks changes in bone height over one year to compare the effects of implant placement angles on bone health.

Evaluation of Bone Changes Around Implants in Patients Treated With All on Four