This study investigated the possibility of nitride NiTi instruments using low-temperature
plasma nitriding technology in a standard industrial device. Changes in the properties and …

This study aimed to evaluate the effect of autoclave sterilization on the integrity and
instruments' fracture number after multiple uses and cyclic fatigue of the original WaveOne …

Background: This study aimed to compare the effect of heat treatment on the cyclic fatigue
resistance of three different nickel–titanium rotary file systems: TruNatomy, HyFlex CM, and …

Aim: The purpose of this comparative in vitro study was to investigate the cyclic fatigue
resistance (CFR) of two different rotary endodontic file systems, namely, TruNatomy and …

One of the primary goals in endodontics is efficient cleaning and shaping of the root canal
while maintaining its original configuration. Numerous studies highlight the advantage of …

Small-sample properties of the likelihood ratio test, the Wald test and the score test about
significance of the effect in the Cox proportional hazards model for the right-censored and …

Aim: The current in vitro study aimed to assess the surface topography of Protaper gold NiTi
files and compare changes in surface topography before and after root canal preparation in …

The presence of scatter is inherent to fatigue life studies of materials and structures; a wide
variety of statistical tools exists for analysis. Among them, Cox (proportional hazards) …

Všeobecný nárůst modernizace ošetřovacích postupů za využití inovativní techniky v
posledních letech se nevyhnul ani oblasti stomatologie. Tento trend výrazně přispívá ke …

Background and Aims. A very common statistical method used in statistical analysis of
medical data is the Cox proportional hazard model (Cox model). The aim of this paper is to …