Enhanced bioactivity of glass ionomer cement by incorporating calcium silicates

Biomatter
Song ChenWei Xia

Abstract

Glass ionomer cements (GIC) are known as a non-bioactive dental cement. During setting the GIC have an acidic pH, driven by the acrylic acid component. It is a challenge to make GIC alkaline without disturbing its mechanical properties. One strategy was to add slowly reacting systems with an alkaline pH. The aim of the present study is to investigate the possibility of forming a bioactive dental material based on the combination of glass ionomer cement and calcium silicates. Two types of GIC were used as control. Wollastonite (CS also denoted β-CaSiO3) or Mineral Trioxide Aggregate (MTA) was incorporated into the 2 types of GIC. The material formulations' setting time, compressive strength, pH and bioactivity were compared between modified GIC and GIC control. Apatite crystals were found on the surfaces of the modified cements but not on the control GIC. The compressive strength of the cement remained with the addition of 20% calcium silicate or 20% MTA after one day immersion. In addition, the compressive strength of GIC modified with 20% MTA had been increased during the 14 d immersion (p < 0 .05).

References

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Citations

May 26, 2016·Journal of Materials Science. Materials in Medicine·Song ChenHåkan Engqvist
Nov 6, 2018·Journal of Esthetic and Restorative Dentistry : Official Publication of the American Academy of Esthetic Dentistry ... [et Al.]·Hii S ChingNik R N Abdul Ghani
Dec 5, 2019·Dentistry Journal·Tahani BinaljadmKeyvan Moharamzadeh
Mar 17, 2021·Journal of Materials Science. Materials in Medicine·John W NicholsonSharanbir K Sidhu

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