According to the intra-examiner reproducibility results, three protocols were selected to carry out the inter-examiner analysis (Table 2).
When the Pz-ph values were obtained by averaging the triplicates,
the inter-examiner reproducibility of the measurements taken using both a caliper and a computer were classified as very good.
The protocol CP/1C showed an ICC significantly lower than that of protocol CP/3C and its 95% CI limits crossed with those of DC/3C protocol on the significance threshold.
Therefore, it can be considered that two Pz-ph protocols showed a greater reliability with regard to measurements taken by different examiners, both by taking measurements in triplicate for each sample