Histomorphometric analysis of maxillary sinus augmentation using an alloplast bone substitute.
OBJECTIVE
To evaluate the regenerative potential of a fully synthesized homogenous hydroxyapatite:β-tricalcium phosphate 60:40 alloplast material in sinus lift procedures.


METHODS
Hydroxyapatite:β-tricalcium phosphate was used for sinus floor augmentation. After 9 months, 12 biopsies were taken from 12 patients. Routine histologic processing was performed and specimens were analyzed using a light microscope and a digital camera.


RESULTS
Histologic evaluation showed 26.4% newly formed bone, 27.3% residual graft material, and 46.3% bone marrow. The osteoconductive index was 33.5%.


CONCLUSIONS
Hydroxyapatite:β-tricalcium phosphate 60:40 alloplast material was found to be biocompatible and osteoconductive in maxillary sinus augmentation procedures.
Department of Periodontology, Maurice and Gabriela Goldschleger School of Dental Medicine, Tel Aviv University, Tel Aviv, Israel. daniaron@netvision.net.il
Roni
R
Kolerman
Gal
G
Goshen
Nissan
N
Joseph
Avital
A
Kozlovsky
Saphal
S
Shetty
Haim
H
Tal
D020341:Absorbable Implants; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001672:Biocompatible Materials / Q000627:therapeutic use; D001706:Biopsy / Q000379:methods; D001853:Bone Marrow / Q000473:pathology; D001861:Bone Regeneration / Q000502:physiology; D018786:Bone Substitutes / Q000627:therapeutic use*; D003442:Crowns; D003758:Dental Implantation, Endosseous / Q000379:methods; D019094:Dental Prosthesis, Implant-Supported; D003830:Denture, Partial, Fixed; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D006882:Hydroxyapatites / Q000627:therapeutic use; D007091:Image Processing, Computer-Assisted / Q000379:methods; D008297:Male; D008437:Maxilla / Q000473:pathology / Q000601:surgery; D008443:Maxillary Sinus / Q000473:pathology*; D008875:Middle Aged; D016348:Osseointegration / Q000502:physiology; D010012:Osteogenesis / Q000502:physiology; D059546:Sinus Floor Augmentation / Q000379:methods*; D014057:Tomography, X-Ray Computed / Q000379:methods
D001672:Biocompatible Materials; D018786:Bone Substitutes; D006882:Hydroxyapatites; C074950:hydroxyapatite-beta tricalcium phosphate