Evaluation of Marginal Bone Loss of Two Immediately Loaded Implants Retaining Mandibular Overdentures With Ball Attachment Versus Intra Oral Welding Titanium Bar a Randomized Clinical Trial

The patients will be divided in two groups, each group will receive maxillary and mandibular conventional heat cured acrylic resin complete dentures, which will be duplicated and provided by radio-opaque resin at the proposed implant sites to act as radiographic stents. Only patients with a D2 or D3 bone density will be included in the study. This will be confirmed by their cone beam computed tomographic (CBCT) scans of the mandible, while wearing radiographic stents.

The CBCT will be used to ensure sufficient bone width at the proposed implant sites, namely canine regions for implant diameter 3.7. Diagnostic set ups for all patients will be prepared to ensure a crown height space of at least 12 mm to accommodate the ball attachments for group I and intra oral welding bar for group II. Each group will receive two implants in the canine region through using surgical stent and immediate loading will be done.

Group B: immediate loading will be done using ball attachment and soft liners acting as female part for mandibular overdenture.

Group I: immediate loading will be done using intra oral welding titanium bar with 2 mm diameter and soft liner acting as a female part for mandibular overdenture.

For each group, marginal bone loss around the implants will be assessed at time of denture delivery and six months later. Patient satisfaction will be assessed using oral health related quality of life using (OHRQOL 14)