التقييم السريري للمدة اللازمة لثبات الطعوم العظمية الذاتية المطبقة على منطقة الفقد العظمي لسنخ الأسنان الأمامية العلوية من أجل استقبال الزرعات السنية

الملخص EN

Background &Objective: Bony resorption of the upper anterior alveolus following dental extraction is one of the problems the dentist encounters in their daily practice.

In order to restore this bony loss, it is important to use bone grafts, particularly the autogenous bone graft which is considered the golden choice for the success of such interventions.

The purpose beyond conducting this research project was to evaluate the shortest time period required to achieve a full bony integration of the bone graft with the surrounding tissues.

Methods & Material: The study sample consisted of 24 patients with age range of 18 – 22 years.

The sample was divided randomly into three main groups according to the duration of the follow-up period: (1) first group with an incubation period of 10 weeks; (2) second group with an incubation period of 16 weeks; and (3) third group with an incubation period of 24 weeks.

The surgical intervention included harvesting bony tissues from the anterior margin of the ramus and placing them into the recipient sites (of bony loss).

At the assessment times for each group, the second phase of the surgical intervention was conducted.

In this phase, retainers were removed, the implant bed was prepared and the clinical findings were recorded (blood supply, blocking of the central osseous apertures, the presence of the peripheral bone formation at the graft margins, the separation of the bone graft from the recipient bone when the implant's bed was prepared).

Results: It was found that 16 weeks was a sufficient period as a minimal time frame to achieve good healing as well as good clinically mechanical stability of the bone graft.

Conclusion: The sufficient and minimal period to wait in order to undertake the second surgical intervention after applying the block bone graft in the upper anterior alveolus in Maxilla following dental extraction is 16 week.