Long term follow up for closed technique of sinus lift with simultneous implantation with and without grafting using direct digital radiography and CT scan

الملخص EN

Rehabilitation of Posterior maxillary using dental implant is considered a problem.

This is not only for poor bone quality but also due to decrease in adequate bone height as a result of sinus pneumatization and or alveolar ridge resorption.

Reconstruction of posterior maxilla through inlay grafting of maxillary sinus can be done through open or closed sinus lift.

Closed technique is considered less invasive technique that allow upwardly displace sinus floor lining with simultaneous implantation using osteotome.

This study was done to evaluate the success rate of closed sinus lift with simultaneous implantation at 60 months postoperatively using both digital radiography and CT scan for grafted and ungrafted sides.

Ten patients with bilaterally missing upper six molar and atrophic alveolar ridge (only 5 to 7 mm height from crest of ridge to sinus floor) were selected, bilateral sinus lift in both sides were done for every case with simultaneous implantation.

one side with Frios algipore as alloplastic graft and the other without grafting.

After 9 months, fixed crowns were constructed and the cases were followed up for 60 months as a long term follow up study both clinically and radiographically At the end of follow up period one implant out of twenty was failed, the other nineteen implants showed proper ossoeintegration., the bone density and height below elevated sinus lining increased in both grafted and ungrafted sides.

The increase in the grafted side was not significant.