The physical properties of accelerated Portland cement for endodontic use
- 23 October 2007
- journal article
- research article
- Published by Wiley in International Endodontic Journal
- Vol. 41 (2), 151-157
- https://doi.org/10.1111/j.1365-2591.2007.01330.x
Abstract
To investigate the physical properties of a novel accelerated Portland cement. The setting time, compressive strength, pH and solubility of white Portland cement (Lafarge Asland; CEM 1, 52.5 N) and accelerated Portland cement (Proto A) produced by excluding gypsum from the manufacturing process (Aalborg White) and a modified version with 4 : 1 addition of bismuth oxide (Proto B) were evaluated. Proto A set in 8 min. The compressive strength of Proto A was comparable with that of Portland cement at all testing periods (P > 0.05). Additions of bismuth oxide extended the setting time and reduced the compressive strength (P < 0.05). Both cements and storage solution were alkaline. All cements tested increased by >12% of their original weight after immersion in water for 1 day with no further absorption after 28 days. Addition of bismuth oxide increased the water uptake of the novel cement (P < 0.05). The setting time of Portland cement can be reduced by excluding the gypsum during the last stage of the manufacturing process without affecting its other properties. Addition of bismuth oxide affected the properties of the novel cement. Further investigation on the effect that bismuth oxide has on the properties of mineral trioxide aggregate is thus warranted.This publication has 13 references indexed in Scilit:
- Hydration mechanisms of mineral trioxide aggregateInternational Endodontic Journal, 2007
- Characterization of Portland cement for use as a dental restorative materialDental Materials, 2006
- A comparative study of selected properties of ProRoot mineral trioxide aggregate and two Portland cementsInternational Endodontic Journal, 2006
- The chemical constitution and biocompatibility of accelerated Portland cement for endodontic useInternational Endodontic Journal, 2005
- Chemical and physical surface and bulk material characterization of white ProRoot MTA and two Portland cementsDental Materials, 2005
- Physico‐chemical properties of MTA and a novel experimental cementInternational Endodontic Journal, 2005
- The constitution of mineral trioxide aggregateDental Materials, 2005
- Histologic evaluation of pulpotomies in dog using two types of mineral trioxide aggregate and regular and white Portland cements as wound dressingsOral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontology, 2004
- pH and calcium ion release of 2 root-end filling materialsOral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontology, 2003
- Physical and chemical properties of a new root-end filling materialJournal of Endodontics, 1995