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Table 1 Comparison for initial ages and treatment time between Group I (Self-ligating Brackets) and Group II (Conventional Preadjusted Brackets)

From: Root resorption of self-ligating and conventional preadjusted brackets in severe anterior crowding Class I patients: a longitudinal retrospective study

Variable

Group 1

Group 2

P

Mean

SD

Mean

SD

Initial age (years)

13.52

2.84

13.42

2.50

NS

Treatment time

20.53

3.62

20.34

3.40

NS

  1. NS mean: No Statistically significant difference (P >05)
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BMC Oral Health

ISSN: 1472-6831

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