Research Article
Physical-Mechanical Properties and Micromorphology of Calcium Cements Exposed to Polyacrylic and Phosphoric Acids
Table 5
Means (standard deviation) of impact resistance in newtons (N) according to the type of material and treatment.
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Different capital letters represent statistically significant differences between surface treatments of the same material (). Different lower case letters represent statistically significant differences between materials for the same surface treatment (). |