Effects of thermal cycling and surface roughness on the Weibull distribution of porcelain strength

Fracture statistics of dental ceramics: Discrimination of strength distributions

“…SEM images of fracture surfaces of (a) VM7 feldspathic porcelain (reproduced with permission from [57]) and (b) IPS Empress (reproduced with permission from [34]) with wake hackles (WH). Table 1 Strength data sets of ten dental ceramics, where 4PBT indicates the 4-point bending test and B3BT represents the ball-on-three-balls test [18][19][20][21][22]. A c c e p t e d M a n u s c r i p t 30 Table 2 The fitted parameters by using the Weibull, normal and log-normal distributions, respectively.…”

“…The strength data sets of ten dental ceramics were collected (see Table 1), including their specific names, the category, test methods and the source of data [18][19][20][21][22]. The details of categories of these dental ceramics are as follows:…”

Influence of Surface Treatment on Strength Distribution of Vita VMK 68 Dental Porcelains

“…The smallest standard deviation is reached when the surface is glazed. Nakamura et al [35] investigated the effect of thermal cycling, performed by immersing the specimens 5000 times in water baths at temperatures of 5 ∘ C and 55 ∘ C, on roughness and flexural strength of Deguceram Gold and Vita Omega 900. In the case of Vita Omega 900, the thermal cycling increased the mean roughness for glazed and 1000-grit group, and a decrease in mean roughness was observer for 600-grit and 100-grit polished specimens.…”

Evaluation of the Surface Roughness and Transluceny For All Ceramics by in Vitro Testing Methods: Review

“…Ağız ortamında seramik yapıdaki mikro çatlakların zamanla kırılmalara yol açabileceği belirtilmektedir (16).…”