Bovine Tooth Discoloration Induced by Endodontic Filling Materials for Primary Teeth

Table 2

Color variation results () by ANOVA with repeated measures with regard to the effects of weather and their interaction groups.

Variation	Type III; sum squares	Df	Mean square		( value)
Intercept	7783.437	1	7783.437	295.189	0.000
Material	441.254	4	110.313	4.184	0.004
Error	1845.734	70	26.368
Time	300.345	5	60.069	8.765	0.000
Time material	938.643	20	46.932	6.848	0.000
Error	2398.756	350	6.854