Materials and methodology



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Manual Plotting Over An X-Ray View Box



Figure 3: Landmark plotting with Dolphin imaging V.11.8

(Dolphin imaging and management solutions, Chatsworth, CA 91311) software

Table 1


RESULTS OBTAINED BY MANUAL PLOTTING OF HARD TISSUE LANDMARKS

HARDTISSUE LANDMARKS

MANUAL

X Y

COMPUTERISED

X Y

Manual ICC

Computerised ICC

MEAN± S.D

MEAN ± S.D

MEAN

SD

MEAN

SD

X

Y

X

Y

SELLA

111.08 ± 20.8

34.92 ± 21.69

111.31 ± 18.5

32.48± 19.68

0.994

0.979

1.000

1.000

NASION

42.31 ± 7.02

19.95 ± 7.62

42.4 ± 6.36

19.04 ± 7.15

0.981

0.963

0.991

0.994

PORION

134.47 ± 23.8

54.01 ± 22.00

134.41 ± 21.4

51.93± 20.10

0.991

0.980

0.996

0.999

ORBITALE

56.09 ± 5.6

47.20 ± 6.34

56.21 ± 6.17

46.90 ± 5.84

0.982

0.956

0.992

0.989

ANS

38.90 ± 9.5

68.59 ± 11.13

37.99 ± 9.40

68.77 ± 8.7

0.989

0.760

0.998

0.981

PNS

90.07 ± 8.5

73.97 ± 7.31

90.07 ± 8.96

72.72 ± 8.36

0.819

0.845

0.997

0.995

POINT A

42.98 ± 10.6

73.77 ± 11.65

41.74 ± 9.68

74.03 ± 9.4

0.990

0.927

0.998

0.973

POINT B

50.76 ± 18.9

109.13 ± 23.8

48.59 ± 16.63

112.68± 15.5

0.985

0.962

0.999

0.995

POGONION

51.21 ± 22.4

124.49 ± 25.3

48.75 ± 19.56

126.6± 18.99

0.928

0.846

0.998

0.995

MENTON

57.75 ± 22.5

132.04 ± 24.0

55.82 ± 19.52

136.97± 32.9

0.967

0.789

0.917

0.912

Table 2

RESULTS OBTAINED ON COMPARING ICC VALUES OF HARDTISSUE LANDMARK PLOTTING BETWEEN MANUAL & COMPUTERISED METHOD

LANDMARKS

ICC –MANUAL

ICC-COMPUTERISED

ICC-MANUAL VS COMPUTERISED




X

Y

X

Y

X

Y

SELLA

0.994

0.979

1.000

1.000

0.858

0.895

NASION

0.981

0.963

0.991

0.994

0.863

0.858

PORION

0.991

0.980

0.996

0.999

0.881

0.912

ORBITALE

0.982

0.956

0.992

0.989

0.835

0.671

ANS

0.989

0.760

0.998

0.981

0.741

0.750

PNS

0.819

0.845

0.997

0.995

0.616

0.941

POINT A

0.990

0.927

0.998

0.973

0.771

0.749

POINT B

0.985

0.962

0.999

0.995

0.737

0.469

POGONION

0.928

0.846

0.998

0.995

0.754

0.665

MENTON

0.967

0.789

0.917

0.912

0.759

0.718
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