A novel approach to determining augmented bone volume in intraoral bone block augmentation using an intraoral scanner: an in vitro study

International Journal of Implant Dentistry

Table 1 Volume measurements

	Time-point	Semi-automatic (N = 19) [cm³]	Manual (N = 20) [cm³]	Total (N = 39) [cm³]	Mean difference [90% Confidence Interval]	p values (TOST, NHST)
Block augmentation	T0	0.35 ± 0.081	0.36 ± 0.091	0.35 ± 0.085	− 0.008 [− 0.054, 0.038]	< 0.001*, 0.773
Block augmentation	T1	0.34 ± 0.091	0.35 ± 0.085	0.35 ± 0.087	− 0.015 [− 0.062, 0.033]	< 0.001*, 0.609
Split block augmentation	T0	0.73 ± 0.15	0.78 ± 0.14	0.75 ± 0.14	− 0.05 [− 0.127, 0.027]	0.017*, 0.280
Split block augmentation	T1	0.75 ± 0.15	0.78 ± 0.15	0.76 ± 0.15	− 0.034 [− 0.115, 0.046]	0.010*, 0.475
Shell augmentation	T0	0.80 ± 0.19	0.86 ± 0.17	0.83 ± 0.18	− 0.066 [− 0.161, 0.029]	0.073, 0.248
Shell augmentation	T1	0.80 ± 0.18	0.84 ± 016	0.82 ± 0.17	− 0.042 [− 0.134, 0.051]	0.028*, 0.452

The measured values of augmented volume for the different augmentation techniques, time points and measurement techniques. TOST: Test of One-Sided Significance, NHST: Null Hypothesis Significance Testing
*Statistically significant with significance level alpha < 0.05