Wear matching performance of dental restoration materials oppositing to dentine / 实用口腔医学杂志
Journal of Practical Stomatology
;
(6): 23-26, 2017.
Artigo
em Chinês
| WPRIM
| ID: wpr-619227
ABSTRACT
Objective:
To compare the wear resistance between dentin and dental restoration material in vitro.Methods:
The friction and wear behaviors of natural tooth dentin respectively against highly polished polymer ceramic,glass ceramic and zirconia were investigated in an artificial saliva test environment by UMT-2 friction and wear testing machine.Worn surface morphology was observed by scanning electron microscopy(SEM),roughness was measured by roughness instrument,the rigidity value was weighed by electronic balance.Results:
The roughness of the 3 materials was similar to that of dentin(P > 0.05),the rigidity of dentin was less than that of the 3 materials (P < 0.05).After friction and wear test,the abrasion quantity of dentin respectively against the 3 materials was less than that of the materials (P < 0.05).There was positive correlation between the wear loss and the hardness of the 3 materials and dentin(r =0.846).The mass loss of the dentin against Poly Ceramic after grinding abrasion was the closest among the 3 materials.Conclusion:
Different materials have varying degrees abrasion against dentine.The Polymer Ceramic has closer abrasion performancez with dentin than the other 2 materials.
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Idioma:
Chinês
Revista:
Journal of Practical Stomatology
Ano de publicação:
2017
Tipo de documento:
Artigo
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