The Effects of Calcium Aluminate Cement According to Particle Sizes on Calvarial Bone Defects in Rats

This present study was carried out to find out the effects of calcium aluminate cement(CaO·Al203, CAC), which has been developed with biocompatibility and mechanical properties, in biological environments. Two different particle sizes of CAC - 3.5 µm vs. 212-250 µm which is recommended in periodontal bone grafting procedures – were filled in 8mm calvarial defects in Sprague-Dawley rats. The specimens were examined histologically, especially the bone-cement interface and the response of surrounding tissues. The result of this study shows that when calvarial defects in white rats are filled with 212-250 µm calcium aluminate cement, the materials proved to be bio-compatible in growth and healing on the surrounding tissues. When further researches on direct bone adhesion and bone regeneration ability are fulfilled, CAC is expected to be applied to various fields of periodontology in the future.

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The effects of calcium aluminate cement according to particle sizes on calvarial bone defects in rats

The Journal of the Korean Academy of Periodontology ◽

10.5051/jkape.2002.32.4.769 ◽

2002 ◽

Vol 32 (4) ◽

pp. 769

Author(s):

Jung-a Shin ◽

Jeong-ho Yun ◽

Seung-han Oh ◽

Jeong-won Paik ◽

Se-young Choi ◽

...

Keyword(s):

Calcium Aluminate ◽

Bone Defects ◽

Calcium Aluminate Cement ◽

Particle Sizes ◽

Calvarial Bone ◽

Aluminate Cement

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The Effects of Calcium Aluminate Cement According to Particle Sizes on Calvarial Bone Defects in Rats

Bioceramics 17 - Key Engineering Materials ◽

10.4028/0-87849-961-x.113 ◽

2005 ◽

pp. 113-116

Author(s):

J.A. Shin ◽

S.U. Im ◽

S.E. Song ◽

C.S. Kim ◽

Se Young Choi ◽

...

Keyword(s):

Calcium Aluminate ◽

Bone Defects ◽

Calcium Aluminate Cement ◽

Particle Sizes ◽

Calvarial Bone ◽

Aluminate Cement

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Effects of a novel calcium aluminate cement on the early events of the progression of osteogenic cell cultures

Brazilian Dental Journal ◽

10.1590/s0103-64402011000200002 ◽

2011 ◽

Vol 22 (2) ◽

pp. 99-104 ◽

Cited By ~ 24

Author(s):

Larissa Moreira Spinola de Castro-Raucci ◽

Ivone Regina de Oliveira ◽

Lucas Novaes Teixeira ◽

Adalberto Luiz Rosa ◽

Paulo Tambasco de Oliveira ◽

...

Keyword(s):

Cell Cultures ◽

Calcium Aluminate ◽

Experimental Studies ◽

Cell Number ◽

Calcium Aluminate Cement ◽

Total Protein Content ◽

Osteogenic Cell ◽

Calvarial Bone ◽

Aluminate Cement

The present study evaluated the progression of osteogenic cell cultures exposed to a novel calcium aluminate cement (CAC+) in comparison with the gold standard mineral trioxide aggregate (MTA). Cells were enzimatically isolated from newborn rat calvarial bone, plated on glass coverslips containing either CAC+ or a control MTA samples in the center, and grown under standard osteogenic conditions. Over the 10-day culture period, roundening of sample edges was clearly noticed only for MTA group. Although both cements supported osteogenic cell adhesion, spreading, and proliferation, CAC+-exposed cultures showed significantly higher values in terms of total cell number at days 3 and 7, and total protein content and alkaline phosphatase activity at day 10. The present in vitro results indicate that the exposure to CAC+ supports a higher differentiation of osteogenic cells compared with the ones exposed to MTA. Further experimental studies should consider CAC+ as a potential alternative to MTA when the repair of mineralized tissues is one of the desired outcomes in endodontic therapy.

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Physicochemical, Mineralogical, and Mechanical Properties of Calcium Aluminate Cement Concrete Exposed to Elevated Temperatures

Materials ◽

10.3390/ma14143855 ◽

2021 ◽

Vol 14 (14) ◽

pp. 3855

Author(s):

Amirmohamad Abolhasani ◽

Bijan Samali ◽

Fatemeh Aslani

Keyword(s):

Temperature Rise ◽

Calcium Aluminate ◽

Elevated Temperatures ◽

Ultrasonic Pulse Velocity ◽

Pulse Velocity ◽

Calcium Aluminate Cement ◽

Cement Concrete ◽

Sem Images ◽

Strength Deterioration ◽

Aluminate Cement

One commonly used cement type for thermal applications is CAC containing 38–40% alumina, although the postheated behavior of this cement subjected to elevated temperature has not been studied yet. Here, through extensive experimentation, the postheated mineralogical and physicochemical features of calcium aluminate cement concrete (CACC) were examined via DTA/TGA, X-ray diffraction (XRD), and scanning electron microscopy (SEM) imaging and the variation in the concrete physical features and the compressive strength deterioration with temperature rise were examined through ultrasonic pulse velocity (UPV) values. In addition, other mechanical features that were addressed were the residual tensile strength and elastic modulus. According to the XRD test results, with the temperature rise, the dehydration of the C3AH6 structure occurred, which, in turn, led to the crystallization of the monocalcium dialuminate (CA2) and alumina (Al2O3) structures. The SEM images indicated specific variations in morphology that corresponded to concrete deterioration due to heat.

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