Ridge Deficiency
Conditions
Keywords
Silica-calcium phosphate composite, Socket augmentation
Brief summary
Ideal bone graft should possess osteogenic, osteoinductive, and osteoconductive properties. Unfortunately, all of these are solely found within the autogenous graft that is available only in limited quantities, and it is associated with substantial post-surgical morbidity, However in this study Silica-calcium phosphate composite (SCPC) confirmed clinically, radiographically, histomorphometricand immunohistochemically the vitality and functionality of the newly formed bone. Histology and immunohistochemistry demonstrated maturation of the newly formed bone as indicated by presence of osteocytes, Haversian systems, blood vessels, compact mineralized collagen type I and high immune staining for osteopontin.
Detailed description
Alveolar ridge resorption following teeth extraction leads to 50% loss in bone width over one year period which corresponds to 5 -7 mm mainly from the buccal rather than palatal\\lingual aspects. Several calcium phosphates from bovine and synthetics sources are used for preservation of extraction socket; however with variable degrees of success. The aim of the present study is to evaluate clinically, radiographically and histologically the effect of Silica-calcium phosphate composite (SCPC) granules on new bone formation qualitatively and quantitatively following socket augmentation. This case series study was performed in five (n = 5) participants (one male and four females), all participants underwent socket augmentation procedures and dental implant placement in a staged approach. All participants were fully informed about the procedures, including the surgery, bone substitute materials and implants. Each participant had one extraction socket to be grafted with silica-calcium phosphate SCPC dental bone graft granules and the contralateral socket served as ungrafted control. Clinical, radiographic and histological evaluation was assessed.
Interventions
DEVICESocket Graft
5 patients had bilateral decayed upper premolar or anterior teeth, in one side SCPC graft was inserted in socket and in the contralateral site was a control, 5 months months postoperative core biopsies were taken from both grafted sockets and control ungrafted sockets during implant insertion. The biopsy samples from SCPC-grafted and control ungrafted sockets were fixed, decalcified and embedded into paraffin wax. All samples were serially sectioned in serial 5μm-thin sections were stained separately with Hematoxylin and Eosin staining, Sirius red and Mason trichrome and immunostaining with osteopontin.
Sponsors
Ain Shams University
Study design
Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
20 Years to 45 Years
Healthy volunteers
Yes
Inclusion criteria
* Patients require extraction of bilateral non-restorable (premolar or anterior) tooth located in the maxillary arch and need implant restoration. * Teeth to be extracted are free from acute periapical infection or active periodontitis. * Buccal plate of bone is intact * Systemic free patients * Patients were able to swallow tablets.
Exclusion criteria
* Patients with remaining root accompanied with acute periapical infection or sinus tract * Insulin dependent diabetes patients. * Thyroid disease patients. * Smoker´s patients * Patients with compromised health (ASA (III or IV) - according to the classification of American Society of Anaesthesiology including drug or alcohol abuse or any significant systemic disease.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Clinical outcome | 5 months | Clinical parameters on the tooth to be extracted in both test and control groups were assessed. Buccal gingival thickness was measured using clinical reference points 4 mm away from the gingival margin by a graduated periodontal probe. |
| Histological outcome | 7 months | histomorphometric measurement of amount of residual graft percent and amount of new vital bone formation in the newly formed bone. The sections were obtained from the core biopsy in 5µm thickness and were stained by Hematoxylin and Eosin. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Immunohistochemical analysis | 7 months | Evaluation of Osteopontin expression in the newly formed bone. |
Countries
Egypt
Outcome results
None listed