Comparison of mechanical properties between vital dentine and pulpless dentine / 实用口腔医学杂志
Journal of Practical Stomatology
;
(6)2000.
Article
in Chinese
| WPRIM
| ID: wpr-670884
ABSTRACT
Objectives:
To study the mechanical properties of human dentin obtained from vital and pulpless teeth.Methods:
Dentin specimens were obtained from 20 freshly extracted normal vital human teeth and 9 endodontically treated human pulpless teeth. The dentin was grinded to be rectangular specimens along to the longitudinal axes of the teeth. All the specimens were immerged in 9 g/L sodium chloride solution, their compressive mechanical properties were measured with displacement measurement method. All data obtained were analyzed with t tests.Results:
The elastic moduli,proportional limits and compressive strengths of the dentin samples from vital teeth were (15.77? 1.52 ) GPa, (157.07?13.79) MPa and (257.67?10.23) MPa respectively. Those from pulpless teeth were (12.08?1.71) GPa, (144.30?9.76) MPa and (235.26?9.12) MPa respectively(P
Full text:
Available
Index:
WPRIM (Western Pacific)
Language:
Chinese
Journal:
Journal of Practical Stomatology
Year:
2000
Type:
Article
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