Physico‐chemical properties of MTA and a novel experimental cement

Abstract

The experimental cement released calcium and increased the pH of the storage solutions in a similar manner to MTA-Angelus. However, EC showed significantly higher calcium release than commercial MTA-Angelus after 24 h.

The effects of incorporation of silver-zeolite on selected properties of mineral trioxide aggregate

“…The amounts of the calcium released were assessed by using an atomic absorption spectrophotometer with a calcium-specific cathode lamp. This is an extensively described method 20,30) . MTA stimulated hard tissue deposition and it has been suggested that this important formation mechanism started with calcium ions release from MTA 31) .…”

“…However it is very important that physicochemical properties of MTA containing SZ be considered in relation to their use because such filling material should present biocompatibility, adequate setting time, insolubility and antimicrobial activity 17) . MTA is a Portland cement and is powder of hydrophilic particles consisting of compounds of tricalcium silicate, tricalcium aluminate, tricalcium oxide and silicate oxide [18][19][20] . The physicochemical characteristics of MTA depend on the particle size, the powder/liquid ratio, the temperature and presence of water 21) .…”

Influence of radiopacifier additives on calcium aluminate cement properties

“…MTA is a white or grey powder which sets when there is moisture 2,3 . MTA primarily consists of tricalcium silicate (3CaD.SiD 2 ), dicalcium silicate (2CaD.SiD 2 ) 4,5 as binder phases, and bismuth oxide to increase its radiopacity 1 .…”

“…MTA is a white or grey powder which sets when there is moisture 2,3 . MTA primarily consists of tricalcium silicate (3CaD.SiD 2 ), dicalcium silicate (2CaD.SiD 2 ) 4,5 as binder phases, and bismuth oxide to increase its radiopacity 1 . Calcium aluminate cement (CAC) has been studied as root-end filling material to overcome some MTA drawbacks such as the long setting time and its negative implications for the clinical needs [6][7][8][9][10][11][12] .…”

Propriedades físico-químicas e biológicas de cimento experimental à base de Portland associado a diferentes radiopacificadores

“…Proliferação fibro-angioblástica com um vaso sanguíneo em destaque (seta vermelha) e material extravasado (seta azul). (HOLLAND, et al, 2001a;DUARTE, et al, 2003;MAROTO, et al, 2005;DREGER, et al, 2012 (SANTOS, et al, 2005;CAMILLERI, 2007CAMILLERI, ,2008c. Os altos níveis de pH são, geralmente, verificados nos períodos iniciais, antes da completa presa dos cimentos, sendo o mesmo verificado no estudo, corroborando com outros estudos (DUARTE, et al, 2003;DE VASCONCELOS, et al, 2009;VIVAN, et al, 2010;SILVA, et al, 2014).…”