Biomechanical Stability of Dental Implants in Augmented Maxillary Sites: Results of a Randomized Clinical Study with Four Different Biomaterials and PRF and a Biological View on Guided Bone Regeneration
Table 1
Statistical evaluation of insertion-torque-values obtained at implant insertion in augmented sites of the anterior maxilla (subperiosteal tunnel technique {SP}) by one-way ANOVA test, Student’s -test, and post hoc multiple comparisons by Fisher's least significant difference (LSD) to test mean insertion-torque-values and variance in each group and mean difference significance between all groups.
(a)
Means comparisons
Comparisons for each pair using Student's
Confidence quantile
Alpha
1.97769
0.05
(b)
LSD threshold matrix
Abs(Dif)-LSD
Easy-graft CRYSTAL_SP
Easy-graft CLASSIC + PRF_SP
Easy-graft CLASSIC_SP
Control Group Native Bone Front-Canine_SP
Easy-graft CRYSTAL_SP
−3.12
2.52
6.84
21.36
Easy-graft CLASSIC + PRF_SP
2.52
−3.04
1.28
15.79
Easy-graft CLASSIC_SP
6.84
1.28
−3.17
11.35
ContrGroupNativeBone Front-Canine_SP
21.36
15.79
11.35
−3.42
Positive values show pairs of means that are significantly different.
(c)
Connecting letters report
level
Mean
Easy-graft CRYSTAL_SP
A
52.50
Easy-graft CLASSIC + PRF_SP
B
46.89
Easy-graft CLASSIC_SP
C
42.51
ContrGroupNativeBone Front-Canine_SP
D
27.87
Levels not connected by same letter are significantly different.
