Table 1.

Groups Division

Analysis	Groups and Sample Size	Analysis reading Time
Microhardness and roughness	G1 - Tucupi (n:16) G2- Cola-based soft drink (n:16) G3- Distilled water (n:16)	T0- before any intervention; T10- 10 days after the proposed treatments; T20- 20 days after the proposed treatment; T30- after 30 days of the proposed treatments.
SEM*	G1 - Tucupi (n:4) G2- Cola-based soft drink (n:4) G3- Distilled water (n:4)
Mass measurement	G1 - Tucupi (n:10) G2- Cola-based soft drink (n:10) G3- Distilled water (n:10)

Abbreviation: *SEM, scanning electron microscopy.