Fig. 6
Measurement system analysis related to the wear volume (μm3) of both the natural tooth as antagonist and the screw-retained implant-supported metal-ceramic dental prostheses at 3- and 6-months follow-up appointments. With a chart of the contribution of each component to the total variance (Components of Variation), a mean control chart and a range control chart (R Chart by Operator and x Chart by appr), every measurement point in the graph (Trial by I and Trial by Operator II), and the interactions between the operators (i): Operator interaction)