Allogenic Bone Ring
Conditions
Brief summary
This trial is aiming to answer a question whether in Patients with severely atrophied, distal mandibular regions, the use of allogenic bone rings with simultaneous dental implants, compared to autogenous bone rings, give successful clinical and radiographic outcomes without donor site morbidity
Interventions
allogenic bone ring with simultaneous dental implant placement
autogenous bone ring with simultaneous dental implant placement
Sponsors
Study design
Eligibility
Inclusion criteria
1. Medically free form any systemic diseases that contraindicate the surgical procedures or affect predictable outcomes and non-smoker subjects. 2. Atrophic mandibular distal region requiring vertical augmentation. 3. Good oral hygiene and healthy keratinized mucosa.
Exclusion criteria
1. Presence of acute dentoalveolar infection or any pathologic lesions. 2. Totally edentulous patients and patients requiring massive reconstruction and augmentation procedures. 3. Patients with history of previously failed augmentation procedures, or failed implant placement at the intended augmentation region.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| change in crestal bone height | at 6 months | cone beam computed tomography will be used to measure bone height in millimeters |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| graft failure | after 1 week, 6 months and after 9 months | signs of graft failure will be evaluated by clinical examination |
| implant loss | after 1 week, 6 months and after 9 months | signs of implant loss will be evaluated by clinical examination |