Table 1 MNTI involving the maxilla as reported in the literature

1918–1979

93

3.9 ± 1.4

0.95

1980–1989

37

3.6 ± 0.4

0.80

1990–1999

58

4.4 ± 0.3

0.80

2000–2009

49

4.1 ± 1.5

2.12

2010–2011*

11

3.5 ± 3.25

0.66

Total

248

3.9 ± 2.6

1.06