Skip to main content

Table 6 Distance differences between the posterior maxillary teeth and the maxillary sinus floor in skeletal Class I, II and III malocclusions

From: Three-dimensional assessment of the favorability of maxillary posterior teeth intrusion in different skeletal classes limited by the vertical relationship with the maxillary sinus floor

Root type Sagittal view P-value Coronal view P-value
Class I Class II Class III Class I Class II Class III
U4 5.3±4.3 6.8±5.6 6.1±4.7 0.07 9.6±8.3 10.7±8.9 10.6±8.3 0.37
U5 2.3±3.5 3.2±4.7 3.1±4.0 0.176 3.1±4.6 3.9±5.8 4.6±6.3 0.056
U6MB 1.1±3.0 1.7±4.1 1.8±3.5 0.358 1.5±3.5 2.1±4.5 2.4±4.2 0.111
U6DB 1.3±3.0 1.7±3.8 1.8±3.4 0.484 1.3±3.3 1.8±3.4 1.9±3.4 0.488
U6P 1.2±4.0 1.9±4.8 2.4±4.3 0.007 1.3±3.4 2.1±4.1 2.5±3.9 0.009
U7MB 0.4±3.1 0.6±3.4 0.9±3.5 0.135 0.5±3.0 0.9±2.8 1.0±3.1 0.076
U7DB 0.8±3.5 1.3±3.9 1.5±3.6 0.05 1.1±4.4 1.8±3.5 1.7±3.2 0.133
U7P 1.7±3.8 2.2±4.4 2.5±3.9 0.048 2.2±3.5 2.9±3.9 2.8±3.7 0.185
  1. Kruskal-Wallis Test