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Table 3 MRI evaluation: sagittal concentricity - comparison between mean values before and after 6 months in each group

From: Comparison of temporomandibular joint changes in Twin Block and Bionator appliance therapy: a magnetic resonance imaging study

Group Pretreatment (n?=?10) After 6 months (n?=?10) tvalue Result
Mean? ?SD (%) Mean? ?SD (%)
Control 6.9? ?5.1 6.7? ?4.9 ?0.15 NS
Twin Block 3.7? ?2.3 18.7? ?10.3 4.42 HS
Bionator 7.7? ?4.4 19.1? ?11.5 5.60 HS