Can Heated Distilled Water Effectively Prevent Precipitate Formation between NaOCl and CHX?

Table 2

Mean rank scores, median of scores (in parentheses), and the results after statistical analysis using the Kruskal–Wallis test and the Dunn multiple comparison test by comparing root thirds in the four groups.

Groups	Root canal thirds
	Cervical	Middle	Apical
G1 (no HDW)	56.5 (3.0)^Aa	56.1 (3.0)^Aa	55.2 (1.0)^Ab
G2 (HDW + IC)	25.5 (0)^Ba	23.5 (0)^Ba	23.0 (0)^Ba
G3 (HDW + PUI)	24.0 (0)^Ba	22.0 (0)^Ba	23.0 (0)^Ba
G4 (HDW + CUI)	24.0 (0)^Ba	28.2 (0)^Ba	28.7 (0)^Ba

HDW, heated distilled water; CI, conventional irrigation; PUI, passive ultrasonic irrigation; CUI, continuous ultrasonic irrigation. Lowercase superscript letters indicate a significant difference (Dunn test, ) within a group among root thirds (row). Uppercase superscript letters indicate a significant difference (Dunn test, ) among groups within a root third (column).