Table 1 Materials’ specification, composition, manufacturer and batch number

Filtek Z250XT Universal Restorative (A2 Body)

Visible light Cured Nano-filled Resin Composite

Resin: (Bis-GMA)^a, (UDMA)^b, (BIS-EMA)^c, and (TEGDMA)^d. Fillers: (82 wt %) Zirconia/silica, non-agglomerated/ non-aggregated 20- nanometer surface-modified silica particles.

3 M ESPE St. Paul, MN 55,144 − 1000 USA

https://www.3 m.com

NC02944