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Calcium phosphate coating on dental composite resins by a laser-assisted biomimetic process

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Title: Calcium phosphate coating on dental composite resins by a laser-assisted biomimetic process
Authors: Nathanael, A. Joseph Browse this author
Oyane, Ayako Browse this author
Nakamura, Maki Browse this author
Koga, Kenji Browse this author
Nishida, Erika Browse this author
Tanaka, Saori Browse this author →KAKEN DB
Miyaji, Hirofumi Browse this author →KAKEN DB
Keywords: Biomedical engineering
Materials science
Issue Date: Aug-2018
Publisher: Elsevier
Journal Title: Heliyon
Volume: 4
Issue: 8
Start Page: UNSP e00734
Publisher DOI: 10.1016/j.heliyon.2018.e00734
Abstract: Objectives: Dental composite resins with better biocompatibility and osteoconductivity have been sought in endodontic treatments. This study aimed to develop a technique to produce the osteoconductive resin surfaces through calcium phosphate (CaP) coating using a laser-assisted biomimetic (LAB) process. Methods: Light-cured, acrylic-based composite resins were used as substrates. The resin substrate was subjected to a LAB process comprising Nd:YAG pulsed laser irradiation in a supersaturated CaP solution. The LAB-processed substrate was immersed for 3 days in a simulated body fluid (SBF) for the preliminary osteoconductivity assessment. Results: After irradiation for 30 min, the resin surfaces were partly coated with a newly formed CaP layer. The coating layer contained hydroxyapatite as the main crystalline phase and the coating coverage depended on the laser wavelength and the type of resin. The LAB-processed CaP-coated surface exhibited apatite-forming ability in SBF. Conclusions: LAB process is effective for CaP coating on light-cured dental composite resins and improving their osteoconductivity. Clinical significance: The LAB process is a potential new tool to create a cementum-like osteoconductive surface on dental composite resins.
Type: article
Appears in Collections:歯学院・歯学研究院 (Graduate School of Dental Medicine / Faculty of Dental Medicine) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 宮治 裕史

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