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Minimally invasive mandibular bone augmentation using injectable hydrogels
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- Martinez-Sanz, Elena (author)
- Uppsala universitet,Polymerkemi
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- Varghese, Oommen (author)
- Uppsala universitet,Polymerkemi,Science for Life Laboratory, SciLifeLab
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- Kisiel, Marta (author)
- Uppsala universitet,Polymerkemi,Science for Life Laboratory, SciLifeLab
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- Reich, Karoline (author)
- Bohner, Marc (author)
- Köhler, Thomas (author)
- Müller, Ralph (author)
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- (creator_code:org_t)
- 2012-09-03
- 2012
- English.
- In: Journal of Tissue Engineering and Regenerative Medicine. - : Hindawi Limited. - 1932-6254. ; 6:S3, s. s15-s23
- Journal article (peer-reviewed)
Abstract
Subject headings
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- Hyaluronic acid-based hydrogels are proven biocompatible materials and excellent carriers of bone morphogenetic protein-2 (BMP-2) that have been successfully tested for bone generation in vivo. Different formulations, with or without nanohydroxyapatite, have shown promise for craniofacial applications. In this study, 28 rats were used to investigate whether it is possible to achieve mandibular bone augmentation upon injection of novel hyaluronic acid-based hydrogels containing nanohydroxyapatite and different concentrations of BMP-2 (0, 5 and 150ÎŒg/ml). The biomaterials were injected subperiosteally through fine needles into the innate mandibular diastema, imitating a clinical procedure for resorbed mandibles. No incisions, flaps or sutures were necessary. After 8weeks the mandibles were evaluated by peripheral quantitative computed tomography (pQCT), micro-computed tomography (ÎŒCT), histology, immunohistochemistry and fluorochrome labelling. As a result, engineered bone was observed in all treated mandibles, with a statistically significant increase in mandibular bone volume correlated with the amount of BMP-2 loaded in the hydrogel formula. We therefore demonstrated that minimally invasive mandibular bone augmentation is possible upon injection in rats, when using the appropriate injectable scaffolds. This represents an attractive clinical alternative for oral implantology patients.
Subject headings
- NATURVETENSKAP -- Kemi -- Polymerkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Polymer Chemistry (hsv//eng)
Keyword
- Bone morphogenetic protein-2
- Bone tissue engineering
- Hyaluronic acid
- Hydroxyapatite
- Injectable hydrogel
- Mandible
- Minimally invasive
- Rat animal model
- Polymer chemistry
- Polymerkemi
- Kemi med inriktning mot polymerkemi
- Chemistry with specialization in Polymer Chemistry
Publication and Content Type
- ref (subject category)
- art (subject category)
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