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Table 3 Load at fracture (mean values ± standard deviations) for premolars with CEC or TEC assessed in the Instron Universal Testing Machine

From: Impacts of contracted endodontic cavities compared to traditional endodontic cavities in premolars

Tooth type (n = 10)

UCW (% of total canal wall surface)

P value

CEC

TEC

Single-rooted premolars

926.90 ± 194.97

888.57 ± 165.73

0.64

Two dental root premolars

665.09 ± 168.74

630.95 ± 159.81

0.88