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Progress in Orthodontics

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

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