Research Article

Ex Vivo Assessment of Natural Teeth Wear against Zirconia and Novel Glass-Fiber-Reinforced Composite Crowns in Primary Teeth by a Three-Dimensional Assessment Method

Table 2

Volume loss of the antagonistic teeth against glass-fiber-reinforced composite crowns, zirconia crowns, and natural teeth groups.

Sample typePrewear mean (SD)Postwear mean (SD)Volume lossPaired “t” testvalue significance

Zirconia crowns7.535.272.2633.362
Glass-fiber-reinforced composite crowns7.556.690.8613.18
Natural teeth7.906.371.5322.782

value indicates statistically highly significant difference; value indicates statistically significant difference.