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Table 3 Measures of central dispersion for the GT (Gingival Thickness) measured by the two methods in the maxilla and mandible

From: Clinical efficacy of intraoral ultrasonography versus transgingival probing for measurement of gingival thickness in different gingival biotypes: a clinical trial

Jaw

Method

Mean

Number

Standard deviation

Std. Error Mean

Maxilla

Ultrasonography 2 mm

1.3703

340

0.24705

0.01340

Transgingival probing 2 mm

1.4958

340

0.26020

0.01411

Ultrasonography 4 mm

1.4594

340

0.30714

0.01666

Transgingival probing 4 mm

1.4565

340

0.26024

0.01411

Mandible

Ultrasonography 2 mm

1.2868

340

0.21528

0.01167

Transgingival probing 2 mm

1.3740

340

0.24474

0.01327

Ultrasonography 4 mm

1.4462

340

0.25605

0.01389

Transgingival probing 4 mm

1.3788

340

0.25496

0.01383