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Table 4 Correlation between Little’s Irregularity Index (LII) and root resorption

From: A randomized trial on the effects of root resorption after orthodontic treatment using pulsating force

 

Mean EARR

Mean Ratio

LII

For all patients and mandibular site

 Mean EARR

1

0.95692

0.30198

 

<.0001

0.1423

 Mean Ratio

0.95692

1

0.36045

<.0001

 

0.0767

 LII

0.30198

0.36045

1

0.1423

0.0767

 

For all patients and maxillary site

 Mean EARR

1

0.95308

0.2836

 

<.0001

0.1897

 Mean Ratio

0.95308

1

0.33696

<.0001

 

0.1159

 LII

0.2836

0.33696

1

0.1897

0.1159