A Narrative Review of u-HA/PLLA, a Bioactive Resorbable Reconstruction Material: Applications in Oral and Maxillofacial Surgery

The advent of bioresorbable materials to overcome limitations and replace traditional bone-reconstruction titanium-plate systems for bone fixation, thus achieving greater efficiency and safety in medical and dental applications, has ushered in a new era in biomaterial development. Because of its bio...

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Bibliographic Details
Published in:Materials 2021-12, Vol.15 (1), p.150
Main Authors: Ngo, Huy Xuan, Bai, Yunpeng, Sha, Jingjing, Ishizuka, Shinji, Toda, Erina, Osako, Rie, Kato, Akira, Morioka, Reon, Ramanathan, Mrunalini, Tatsumi, Hiroto, Okui, Tatsuo, Kanno, Takahiro
Format: Article
Language:English
Subjects:
Biocompatibility
Biodegradable materials
Biodegradation
Biological activity
Biomedical materials
By products
Copolymers
Dental materials
Fixation
Fractures
Hydroxyapatite
In vivo methods and tests
Lactic acid
Maxillofacial surgery
Mechanical properties
Metal plates
Molecular weight
Plastic surgery
Polyesters
Polymers
Review
Tensile strength
Tissue engineering
Titanium
Titanium alloys
Trauma
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Summary:The advent of bioresorbable materials to overcome limitations and replace traditional bone-reconstruction titanium-plate systems for bone fixation, thus achieving greater efficiency and safety in medical and dental applications, has ushered in a new era in biomaterial development. Because of its bioactive osteoconductive ability and biocompatibility, the forged composite of uncalcined/unsintered hydroxyapatite and poly L-lactic acid (u-HA/PLLA) has attracted considerable interest from researchers in bone tissue engineering, as well as from clinicians, particularly for applications in maxillofacial reconstructive surgery. Thus, various in vitro studies, in vivo studies, and clinical trials have been conducted to investigate the feasibility and weaknesses of this biomaterial in oral and maxillofacial surgery. Various technical improvements have been proposed to optimize its advantages and limit its disadvantages. This narrative review presents an up-to-date, comprehensive review of u-HA/PLLA, a bioactive osteoconductive and bioresorbable bone-reconstruction and -fixation material, in the context of oral and maxillofacial surgery, notably maxillofacial trauma, orthognathic surgery, and maxillofacial reconstruction. It simultaneously introduces new trends in the development of bioresorbable materials that could used in this field. Various studies have shown the superiority of u-HA/PLLA, a third-generation bioresorbable biomaterial with high mechanical strength, biocompatibility, and bioactive osteoconductivity, compared to other bioresorbable materials. Future developments may focus on controlling its bioactivity and biodegradation rate and enhancing its mechanical strength.
ISSN:1996-1944
1996-1944
DOI:10.3390/ma15010150