One-way ANOVA and pair-wise Tukey’s post hoc tests showed that %initial RTL among the groups was not significantly different (P > .05), while %postload RTL was significantly different among the three groups (P < .05). GIIIB had the highest %postload RTL (42.8% ± 5.6) while GIA had the lowest (22.8% ± 2.9). For GIA and B, %postload RTL was lower than %initial RTL. %postload RTL is significantly different between different abutment groups (< 0.001*) except between Group IA and Group IB which was not significantly different (P > .05). %difference RTL between the three groups is significantly different (< 0.001*) (Tables 1, 2, 3, and 4 and Figs. 4, 5, and 6).