Table 1 Mean ± SD of GSV in 36 groups based on the position/area
Type | Area | The mean amount of artifacts (gray value) | SD | 95% Confidence interval | |
|---|---|---|---|---|---|
Lower bound | Upper bound | ||||
Apical 3 mm | Posterior maxilla | 2484.280 | 928.819 | 1956.746 | 3011.814 |
Anterior maxilla | 4090.540 | 1656.242 | 3563.006 | 4618.074 | |
Posterior mandible | 3449.926 | 4505.080 | 2922.392 | 3977.460 | |
Anterior mandible | 3970.114 | 1321.717 | 3442.580 | 4497.648 | |
Apical 4 mm | Posterior maxilla | 2154.916 | 758.817 | 1627.382 | 2682.450 |
Anterior maxilla | 3397.960 | 1323.594 | 2870.426 | 3925.494 | |
Posterior mandible | 2458.284 | 1227.996 | 1930.750 | 2985.818 | |
Anterior mandible | 3305.072 | 1014.564 | 2777.538 | 3832.606 | |
Apical 5 mm | Posterior maxilla | 1832.190 | 694.467 | 1304.656 | 2359.724 |
Anterior maxilla | 3061.700 | 1369.162 | 2534.166 | 3589.234 | |
Posterior mandible | 2061.920 | 950.271 | 1534.386 | 2589.454 | |
Anterior mandible | 2395.926 | 875.911 | 1868.392 | 2923.460 | |
Cervical 3 mm | Posterior maxilla | 4175.148 | 5702.986 | 3647.614 | 4702.682 |
Anterior maxilla | 4773.224 | 1428.128 | 4245.690 | 5300.758 | |
Posterior mandible | 3078.364 | 1284.139 | 2550.830 | 3605.898 | |
Anterior mandible | 4220.300 | 1092.704 | 3692.766 | 4747.834 | |
Cervical 4 mm | Posterior maxilla | 2459.726 | 746.228 | 1932.192 | 2987.260 |
Anterior maxilla | 4142.306 | 1582.835 | 3614.772 | 4669.840 | |
Posterior mandible | 2932.476 | 1598.341 | 2404.942 | 3460.010 | |
Anterior mandible | 3313.258 | 1044.744 | 2785.724 | 3840.792 | |
Cervical 5 mm | Posterior maxilla | 2359.878 | 2603.755 | 1832.344 | 2887.412 |
Anterior maxilla | 3531.520 | 1402.338 | 3003.986 | 4059.054 | |
Posterior mandible | 2361.592 | 1710.237 | 1834.058 | 2889.126 | |
Anterior mandible | 3253.458 | 1415.138 | 2725.924 | 3780.992 | |
Middle 3 mm | Posterior maxilla | 3753.606 | 5062.234 | 3226.072 | 4281.140 |
Anterior maxilla | 3881.440 | 1242.308 | 3353.906 | 4408.974 | |
Posterior mandible | 2843.720 | 871.733 | 2316.186 | 3371.254 | |
Anterior mandible | 3658.500 | 981.120 | 3130.966 | 4186.034 | |
Middle 4 mm | Posterior maxilla | 2330.520 | 742.143 | 1802.986 | 2858.054 |
Anterior maxilla | 3445.700 | 1293.833 | 2918.166 | 3973.234 | |
Posterior mandible | 2356.752 | 728.145 | 1829.218 | 2884.286 | |
Anterior mandible | 3186.812 | 1003.974 | 2659.278 | 3714.346 | |
Middle 5 mm | Posterior maxilla | 1960.060 | 578.727 | 1432.526 | 2487.594 |
Anterior maxilla | 3156.420 | 1575.284 | 2628.886 | 3683.954 | |
Posterior mandible | 2208.320 | 1195.989 | 1680.786 | 2735.854 | |
Anterior mandible | 2563.174 | 995.042 | 2035.640 | 3090.708 | |