External sinus lifting using calcium sulphate as a bone grafting in an adult male patient: Case report

and importance: Nowadays, dental implant is considered as a revolutionary method in teeth replacement. Occasionally, missing bone is seen in the area of missing teeth. Oral surgeons need to rebuild this are before implantology, which could be supported by using bone grafts. The practitioners face a problem in the maxilla because of its anatomy and the presence of maxillary sinus. In some cases, and after losing the bone, maxillary sinus needs to be lift before the implant is placed. Calcium sulphate (CS) is one of the promising methods as one of the biocompatible bone grafts. A 30-year-old male patient was reported to the oral and maxillofacial surgery in Faculty of Dentistry, Damascus University. The main complaint was to replace missing teeth (teeth no: 26,27). The patient had no contraindication for surgery. Clinical Findings and Investigations: intra-oral examination revealed a good oral hygiene with no other diseases either in bone or in the oral mucosa. Cone-beam computed tomography systems (CBCT) scan was done to determine the thickness of the remaining bone and the treatment plan was discussed with the patient. the treatment plan was to do external sinus lifting for the posterior left maxilla, using calcium sulphate as a graft and placing the implants after six months. Each procedure during surgical work was documented and monitored using CBCT. The follow-up and results were made by clinical measures as well CBCT to evaluate radiological bone-gain and bone reduction (two-year follow-up) the use of calcium sulphate has tremendous benefit as biocompatible bone grafts in sinus lifting in order to gain bone before dental implantation. It may increase the bone gain which will improve the surgical site of the implant. •To document the bone gain in the are of missing teeth after using biocompatible grafts.•To Document the benefit of using Calcium Sulphate as bone grafting in oral surgery.•Give full information about the case which may lead to widen the using of this graft in such surgical technique.•That will be considered as a unique technique helping the patient to regain the aesthetic and function activity.•Using this graft after sinus lifting enhanced the amount of bone gain without using any collagen membrane.•Using this graft as well, ensured the consistency of the sinus floor elevation and bone gain after 30 months of following up after lifting.•This bone graft is cheap and gives us more stability after the surgical intervention.