Comparing the effectiveness of the 0.018-inch versus the 0.022-inch bracket slot system in orthodontic treatment: study protocol for a randomized controlled trial

Table 1 Statistical tests

Outcome measure		Type of variable	Statistical test P<0.05
Primary outcome	Duration of alignment stage for the upper and lower arches	Continuous, assuming normal distribution	One-way ANOVA test
Secondary outcomes	Number of visits required	Continuous, assuming normal distribution	One-way ANOVA test
	Occlusal outcome PAR	Continuous, assuming normal distribution	One-way ANOVA test
	Patient perception	Categorical data	Chi-square test
	Severity of OIIRR	Categorical data	Chi-square test or Friedman test

A list of statistical tests that will be used for data analysis depending on the type of data in the current trial. Peer Assessment Rating index (PAR), orthodontically induced inflammatory root resorption (OIIRR), analysis of variance (ANOVA).

ISSN: 1745-6215