The objective of the current study was to examine the tribological behavior of micro‐nano particulates filled dental restorative composite material. The dental composite was composed by organic and inorganic materials with different ratio. Nano hydroxyapatite filler was introduced with a step of 2 wt% up to 8 wt%, and zinc oxide was constant (20 wt%). The sliding wear test was performed on the pin‐on‐disc friction & wear test rig. In steady‐state wear conditions, a decreasing trend of specific‐wear‐rate was observed when the load was varied, while an increasing trend of specific‐wear‐rate was found when sliding velocity and time were varied. As per Taguchi design, the dental composite incorporated of 8 wt% nano‐hydroxyapatite at a normal load of 40 N and a sliding speed of 120 RPM and 23 min exhibits a minimum specific‐wear‐rate. As per ANOVA analysis, load and filler show a considerable effect on the specific‐wear‐rate of the DHZ dental samples, although sliding speed and time show a less significant contribution to the specific‐wear‐rate of the DHZ dental samples.