Influence of strontium containing fluorophosphate glass onto structural and mechanical behavior of MTA network

Kuhu Lunawat; S Kavitha; G Rajkumar; V Dhivya; N Ravi Kumar; S Mahalaxmi; Fayaz Ahmed Shaik

doi:10.1016/j.jmbbm.2023.105750

Influence of strontium containing fluorophosphate glass onto structural and mechanical behavior of MTA network

J Mech Behav Biomed Mater. 2023 Apr:140:105750. doi: 10.1016/j.jmbbm.2023.105750. Epub 2023 Mar 1.

Authors

Kuhu Lunawat¹, S Kavitha², G Rajkumar³, V Dhivya³, N Ravi Kumar¹, S Mahalaxmi¹, Fayaz Ahmed Shaik¹

Affiliations

¹ Department of Conservative Dentistry and Endodontics, SRM Institute of Science and Technology, Ramapuram, Chennai, 600 089, Tamil Nadu, India.
² Department of Conservative Dentistry and Endodontics, SRM Institute of Science and Technology, Ramapuram, Chennai, 600 089, Tamil Nadu, India. Electronic address: kavithasanjeev02@gmail.com.
³ Department of Physics, Easwari Engineering College, Chennai, 600 089, Tamil Nadu, India.

PMID: 36878080
DOI: 10.1016/j.jmbbm.2023.105750

Abstract

Objective: This study aimed to evaluate the effect of incorporation of strontium based fluoro phosphate glass (SrFPG) 48P₂O₅-29CaO-14NaO-3CaF₂-6SrO on physico chemical and biological properties of mineral trioxide aggregate (MTA).

Methods: Optimized SrFPG glass powder were prepared using planetary ball mill and incorporated into MTA in varying proportion (1, 5, 10 wt%) to obtain SrMT1, SrMT5, SrMT10 bio-composite respectively. The bio-composites were characterized using XRD, FTIR and SEM-EDAX before and after soaking for 28 days in stimulated body fluid (SBF) solution. To assess the mechanical properties and biocompatibility of the prepared bio-composite, density, pH analysis, compressive strength and cytotoxicity evaluation using MTT assay were done before and after soaking for 28 days in SBF solution.

Results: A nonlinear variation in compressive strength and pH values was noted. Of the bio-composites, SrMT10 was evidenced with rich apatite formation in XRD, FTIR and SEM with EDAX analysis. MTT assay showed increased cell viability in all the samples before and after in vitro studies.

Keywords: Apatite; Bioactive glass; Compressive strength; Fluoride; MTT Assay; Mineral trioxide aggregate; Strontium.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Glass* / chemistry
Phosphates*
Strontium / chemistry

Substances

fluorophosphate
strontium phosphate
Phosphates
Strontium