The influence of various coatings of hydroxyapatite bone carrier on the success of bone regeneration in rabbit calvarial defects: Histomorphometric and histological analysis

Background/Aim. The materials used nowadays for bone replacement do not fully meet the requirements for complete regeneration, which is why new ones are being tested. Despite numerous attempts to improve bone tissue regeneration, no fulfilling material has been found yet. This study investigated the...

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Main Authors: Milutinović-Smiljanić Sanja, Antonijević Đorđe, Mićić Milutin, Biočanin Vladimir, Sjerobabin Nikola, Petrović Božana, Danilović Vesna, Jokanović Vukoman
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Language:English
Published: Ministry of Defence of the Republic of Serbia, University of Defence, Belgrade 2022-01-01
Series:Vojnosanitetski Pregled
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Online Access:http://www.doiserbia.nb.rs/img/doi/0042-8450/2022/0042-84502100072M.pdf
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author Milutinović-Smiljanić Sanja
Antonijević Đorđe
Mićić Milutin
Biočanin Vladimir
Sjerobabin Nikola
Petrović Božana
Danilović Vesna
Jokanović Vukoman
author_facet Milutinović-Smiljanić Sanja
Antonijević Đorđe
Mićić Milutin
Biočanin Vladimir
Sjerobabin Nikola
Petrović Božana
Danilović Vesna
Jokanović Vukoman
author_sort Milutinović-Smiljanić Sanja
collection DOAJ
description Background/Aim. The materials used nowadays for bone replacement do not fully meet the requirements for complete regeneration, which is why new ones are being tested. Despite numerous attempts to improve bone tissue regeneration, no fulfilling material has been found yet. This study investigated the influence of poly-lactide-co-glycolide (PLGA) and polyethyleneimine (PEI) as coatings for hydroxyapatite (HAP) bone carriers on bone tissue regenerative potential in rabbits’ calvarial defect. Methods. Calvarial defects measuring 6 mm in diameter were made in 19 skeletally mature rabbits. Defects were filled with one of the following materials: PLGA coated HAP (HAP + PLGA), PEI coated HAP (HAP + PEI), and bovine HAP – Bio-Oss® (positive control). Unfilled defects represented negative control. Histological analysis was performed in order to determine the inflammatory response of the host tissue. The formation of the new bone was evaluated using histomorphometric analysis. All analyses have been conducted in samples obtained 3, 6, and 9 weeks after implantation. Results. Three weeks post-implantation, a trend toward increased healing in the HAP + PLGA group compared to other investigated materials was noticed, with no statistically significant difference between the study groups (p > 0.05). However, after 6 and 9 weeks, significant healing was observed in favor of the HAP coated with PLGA compared to other groups (p < 0.05). Within this group, greater bone healing was observed compared to the HAP + PEI and Bio-Oss® groups. Conclusion. PLGA demonstrated greater coating potential compared to PEI with respect to osteogenesis improvement in bone reconstructive surgery.
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spelling doaj-art-cf2dbbf40b0c416090bd8f3650f13f702025-08-20T02:04:28ZengMinistry of Defence of the Republic of Serbia, University of Defence, BelgradeVojnosanitetski Pregled0042-84502406-07202022-01-0179101025103410.2298/VSP210513072M0042-84502100072MThe influence of various coatings of hydroxyapatite bone carrier on the success of bone regeneration in rabbit calvarial defects: Histomorphometric and histological analysisMilutinović-Smiljanić Sanja0https://orcid.org/0000-0003-1357-4970Antonijević Đorđe1Mićić Milutin2Biočanin Vladimir3https://orcid.org/0000-0002-1607-4069Sjerobabin Nikola4Petrović Božana5Danilović Vesna6Jokanović Vukoman7https://orcid.org/0000-0002-2976-8238University of Belgrade, Faculty of Dental Medicine, Department of General and Oral Histology and Embryology, Belgrade, SerbiaUniversity of Belgrade, Institute for Nuclear Science “Vinča”, Laboratory for Atomic Physics, Belgrade, Serbia + University of Belgrade, Faculty of Medicine, Laboratory for Anthropology, Belgrade, SerbiaUniversity of Belgrade, Faculty of Medicine, Laboratory for Anthropology, Belgrade, SerbiaUniversity of Business Academy, Faculty of Dentistry, Pančevo, SerbiaUniversity Clinical Hospital Center ‟Dr. Dragiša Mišović”, Belgrade, SerbiaUniversity of Belgrade, Institute for Nuclear Science “Vinča”, Laboratory for Atomic Physics, Belgrade, SerbiaUniversity of Belgrade, Faculty of Dental Medicine, Department of General and Oral Histology and Embryology, Belgrade, SerbiaUniversity of Belgrade, Institute for Nuclear Science “Vinča”, Laboratory for Atomic Physics, Belgrade, SerbiaBackground/Aim. The materials used nowadays for bone replacement do not fully meet the requirements for complete regeneration, which is why new ones are being tested. Despite numerous attempts to improve bone tissue regeneration, no fulfilling material has been found yet. This study investigated the influence of poly-lactide-co-glycolide (PLGA) and polyethyleneimine (PEI) as coatings for hydroxyapatite (HAP) bone carriers on bone tissue regenerative potential in rabbits’ calvarial defect. Methods. Calvarial defects measuring 6 mm in diameter were made in 19 skeletally mature rabbits. Defects were filled with one of the following materials: PLGA coated HAP (HAP + PLGA), PEI coated HAP (HAP + PEI), and bovine HAP – Bio-Oss® (positive control). Unfilled defects represented negative control. Histological analysis was performed in order to determine the inflammatory response of the host tissue. The formation of the new bone was evaluated using histomorphometric analysis. All analyses have been conducted in samples obtained 3, 6, and 9 weeks after implantation. Results. Three weeks post-implantation, a trend toward increased healing in the HAP + PLGA group compared to other investigated materials was noticed, with no statistically significant difference between the study groups (p > 0.05). However, after 6 and 9 weeks, significant healing was observed in favor of the HAP coated with PLGA compared to other groups (p < 0.05). Within this group, greater bone healing was observed compared to the HAP + PEI and Bio-Oss® groups. Conclusion. PLGA demonstrated greater coating potential compared to PEI with respect to osteogenesis improvement in bone reconstructive surgery.http://www.doiserbia.nb.rs/img/doi/0042-8450/2022/0042-84502100072M.pdfbone regenerationhistological techniquesmaterials testingpolymersrabbits
spellingShingle Milutinović-Smiljanić Sanja
Antonijević Đorđe
Mićić Milutin
Biočanin Vladimir
Sjerobabin Nikola
Petrović Božana
Danilović Vesna
Jokanović Vukoman
The influence of various coatings of hydroxyapatite bone carrier on the success of bone regeneration in rabbit calvarial defects: Histomorphometric and histological analysis
Vojnosanitetski Pregled
bone regeneration
histological techniques
materials testing
polymers
rabbits
title The influence of various coatings of hydroxyapatite bone carrier on the success of bone regeneration in rabbit calvarial defects: Histomorphometric and histological analysis
title_full The influence of various coatings of hydroxyapatite bone carrier on the success of bone regeneration in rabbit calvarial defects: Histomorphometric and histological analysis
title_fullStr The influence of various coatings of hydroxyapatite bone carrier on the success of bone regeneration in rabbit calvarial defects: Histomorphometric and histological analysis
title_full_unstemmed The influence of various coatings of hydroxyapatite bone carrier on the success of bone regeneration in rabbit calvarial defects: Histomorphometric and histological analysis
title_short The influence of various coatings of hydroxyapatite bone carrier on the success of bone regeneration in rabbit calvarial defects: Histomorphometric and histological analysis
title_sort influence of various coatings of hydroxyapatite bone carrier on the success of bone regeneration in rabbit calvarial defects histomorphometric and histological analysis
topic bone regeneration
histological techniques
materials testing
polymers
rabbits
url http://www.doiserbia.nb.rs/img/doi/0042-8450/2022/0042-84502100072M.pdf
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