TY - JOUR
T1 - Sinus floor augmentation with autogenous iliac bone block grafts
T2 - A histological and histomorphometrical report on the two-step surgical technique
AU - Pejrone, G.
AU - Lorenzetti, M.
AU - Mozzati, M.
AU - Valente, G.
AU - Schierano, G. M.
PY - 2002/8
Y1 - 2002/8
N2 - In thirteen patients, screw-type endosseous implants were inserted 6 months after sinus floor elevation and augmentation with autogenous iliac bone block grafts. Bone biopsies were harvested at graft positioning (baseline), at implant placement (6 month) and at abutment connection (1 year). Histological evaluation suggested a decrease in the volume of mineralized tissue and in the vitality of the grafts 6 months after graft insertion, followed by an increase at abutment connection. Histomorphometric analysis of the bone specimens showed that, at implant placement, bone content was reduced by 5.2% on average, while 12 months after grafting it had increased by 4.8% compared to the amount of mineralized tissue contained in the graft at baseline. The results suggest that in sinus floor augmentation procedures with autogenous iliac bone blocks, a two-step surgical technique allows implant insertion when graft healing is entering a phase of greater density and vitality.
AB - In thirteen patients, screw-type endosseous implants were inserted 6 months after sinus floor elevation and augmentation with autogenous iliac bone block grafts. Bone biopsies were harvested at graft positioning (baseline), at implant placement (6 month) and at abutment connection (1 year). Histological evaluation suggested a decrease in the volume of mineralized tissue and in the vitality of the grafts 6 months after graft insertion, followed by an increase at abutment connection. Histomorphometric analysis of the bone specimens showed that, at implant placement, bone content was reduced by 5.2% on average, while 12 months after grafting it had increased by 4.8% compared to the amount of mineralized tissue contained in the graft at baseline. The results suggest that in sinus floor augmentation procedures with autogenous iliac bone blocks, a two-step surgical technique allows implant insertion when graft healing is entering a phase of greater density and vitality.
KW - Atrophic maxillae
KW - Autogenous bone graft
KW - Histology
KW - Iliac bone block graft
KW - Sinus floor augmentation
UR - http://www.scopus.com/inward/record.url?scp=0036671482&partnerID=8YFLogxK
U2 - 10.1054/ijom.2002.0286
DO - 10.1054/ijom.2002.0286
M3 - Article
SN - 0901-5027
VL - 31
SP - 383
EP - 388
JO - International Journal of Oral and Maxillofacial Surgery
JF - International Journal of Oral and Maxillofacial Surgery
IS - 4
ER -