Control of White Spot Lesion Adjacent to Orthodontic Bracket with Use of Fluoride Varnish or Chlorhexidine Gel

Table 3

Summary and statistical comparison for TMR parameters after WSL induction and 3 months after the last application of or CHX (mean ± SD).

TMR parameter	After artificial induction of WSL	F^*	CHX^*	Control^*
(%vol/μm)	10174.4 ± 2060.3^a	7459 ± 960.1^b	7670 ± 7699.6^b	7608 ± 7608^b
Lesion depth (μm)	248.3 ± 58.5^A	224.43 ± 76.3^A	266.7 ± 87.2^A	208.9 ± 92.8^A

Different superscript letters in the same line show significant difference among the groups (Kruskal-Wallis for and ANOVA for lesion depth).
^*Performed at the end of the experimental time interval, 3 months after the last application of or CHX.