A Bioinspired Bioactive Multi-component Polymerizable Material For Dental Restorative Applications; effects Of Calcium Content On Physico Mechanical Properties

Vibha C1, Lizymol P P2*

1Dental Products Laboratory, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Biomedical Technology Wing, Poojapura, Thiruvananthapuram 695011, Kerala, India

2Lizymol P P, Scientist D, Dental Products Laboratory, SCTIMST, Biomedical Technology Wing, Poojapura, Thiruvananthapuram 695012, Kerala, India

Adv. Mater. Lett., 2017, 8 (1), pp 58-64

DOI: 10.5185/amlett.2017.6343

Publication Date (Web): Nov 12, 2016

E-mail: lizymol@rediffmail.com

Abstract


Novel inorganic-organic hybrid resins [IOHRs] containing mixture of alkoxides of calcium/magnesium/zinc with polymerizable dimethacrylate groups were synthesised using a simple single-pot modified sol-gel method. Objective of the present study is to investigate the impact of calcium content over bioactivity, polymerization shrinkage, and physico mechanical properties of bioactive IOHR containing mixture of alkoxides of calcium/magnesium/zinc having polymerizable methacrylate groups, along with various fillers they can be used as a dental restorative material. Various formulations with varying concentration of inorganic content were used during the synthesis. The concentration of inorganic content was optimised as 0.1% by weight of with respect to the silane.  This optimised formulation based photocured composite [CMZ2] showed better DTS (35-40 MPa), FS (65-70 MPa), VHN (140-146 kg/mm2), possess low shrinkage, non-cytotoxic in nature, bioactive with good cell adhesion and cell proliferation properties. CMZ2 was found to be a potential novel dental composite.

Keywords

IOHRs, single-pot modified sol-gel, dental composite, polymerization shrinkage, bioactivity.

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