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Bone Augmentation by Octacalcium Phosphate and Collagen Composite Coated with Poly-lactic Acid Cage

Overview
Publisher Wiley
Specialty Dentistry
Date 2020 Mar 19
PMID 32187863
Citations 2
Authors
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Abstract

Objective: Although octacalcium phosphate and collagen composite (OCP/Col) has demonstrated excellent bone regeneration, it has never achieved bone augmentation. The present study investigated whether it could be enabled by OCP/Col disks treated with parathyroid hormone (PTH) and covered with a poly-lactic acid (PLA) cage.

Materials And Methods: The prepared OCP/Col disks with three different types of PLA cages (no hole, one large hole, several small holes) were implanted into subperiosteal pockets in rodent calvaria. Histological, and histomorphometric analyses were conducted at 12 weeks after implantation.

Results: Implants with all PLA cage variants achieved sufficient bone augmentation, and analyses showed that new bone was formed from the original bone and along the PLA cage. While the PLA cage variant with no holes sporadically evoked new bone formation even at the central area of the roof of the PLA cage, the PLA cage variants with holes had no new bone in the area of the hole or beneath the periosteum.

Conclusions: These results suggest that sufficient bone augmentation could be achieved by treating the OCP/Col disks with PTH and covering them with a PLA cage, and periosteum might not have been involved in the bone formation in this experiment.

Citing Articles

Acceleration of bone formation by octacalcium phosphate composite in a rat tibia critical-sized defect.

Jeong C, Kim J, Kim H, Lim S, Han D, Huser A J Orthop Translat. 2022; 37:100-112.

PMID: 36262961 PMC: 9574596. DOI: 10.1016/j.jot.2022.09.007.


Bone augmentation by octacalcium phosphate and collagen composite coated with poly-lactic acid cage.

Yanagisawa T, Yasuda A, Makkonen R, Kamakura S Clin Exp Dent Res. 2020; 6(4):391-399.

PMID: 32187863 PMC: 7453772. DOI: 10.1002/cre2.287.

References
1.
Tallgren A . The continuing reduction of the residual alveolar ridges in complete denture wearers: a mixed-longitudinal study covering 25 years. 1972. J Prosthet Dent. 2003; 89(5):427-35. DOI: 10.1016/s0022-3913(03)00158-6. View

2.
Pinholt E, Ruyter I, Haanaes H, Bang G . Chemical, physical, and histologic studies on four commercial apatites used for alveolar ridge augmentation. J Oral Maxillofac Surg. 1992; 50(8):859-67; discussion 867-8. DOI: 10.1016/0278-2391(92)90280-d. View

3.
Kamakura S, Sasano Y, Nakamura M, Suzuki O, KAGAYAMA M, Motegi K . Multinucleated giant cells recruited by implantation of octacalcium phosphate (OCP) in rat bone marrow share ultrastructural characteristics with osteoclasts. J Electron Microsc (Tokyo). 1997; 46(5):397-403. DOI: 10.1093/oxfordjournals.jmicro.a023535. View

4.
Kawai T, Tanuma Y, Matsui K, Suzuki O, Takahashi T, Kamakura S . Clinical safety and efficacy of implantation of octacalcium phosphate collagen composites in tooth extraction sockets and cyst holes. J Tissue Eng. 2016; 7:2041731416670770. PMC: 5051665. DOI: 10.1177/2041731416670770. View

5.
Matsui A, Matsui K, Handa T, Tanuma Y, Miura K, Kato Y . The regenerated bone quality by implantation of octacalcium phosphate collagen composites in a canine alveolar cleft model. Cleft Palate Craniofac J. 2013; 51(4):420-30. DOI: 10.1597/12-096. View