STOMATOLOGY EDU JOURNAL 2017, Volume 4, Issue 3 SEJ_3-2017_Online | Page 28

Effects of Farmand and Fränkel-2 functional appliances on
mandibular deficiency in late mixed dentition
Table 1. Pre and post cephalometric landmark in the Fränkel and Farmand group.
Variables
Sagittal
Group
SNA (°)
ANB (°)
Witts (mm)
GoGn (mm)
Co-Gn (mm)
Overjet (mm)
Vertical
Jarabak (%)
GoGn-Sn (°)
Palatal-GoGn (°)
Facial Angle (°)
Gonial Angle
Dental
U1-Sn (°)
IMPA (°)
Interincisal Angle (°)
Mean SD 81.2 1.5 81.4 1.3 0.124
81 1.3 81.5 1.3 0.001
Farmand 74.3 1.7 77.6 2.3 0.001
FR-2 73.6 3.4 77.6 1.5 0.001
Farmand 6.8 1.6 3.6 2.3 0.001
FR-2 7.3 1.7 3.8 1.5 0.001
Farmand 4.2 1.6 1.9 1.7 0.001
FR-2 4.7 1.4 2.4 1.5 0.001
Farmand 66.5 3.5 69.2 3.5 0.001
FR-2 66.7 2.9 69.8 2.4 0.001
Farmand 103.7 2.9 106.2 2.6 0.001
104 2.3 106.4 2 0.001
Farmand 101.8 1.6 106.3 1.8 0.001
FR-2 102.6 2.4 105.6 2.3 0.001
Farmand 7.1 2.1 3.6 1.9 0.001
FR-2 9.2 3.2 5 1.6 0.001
Farmand 64.1 2.2 62 1.4 0.001
FR-2 64.6 2.7 61.9 1.6 0.001
Farmand 31.8 4.2 34.1 4 0.001
FR-2 30.7 4.6 32.5 3.5 0.003
Farmand 25.3 2.6 27.5 1.9 0.001
FR-2 27.4 3.4 28.6 4.5 0.014
Farmand 82.9 2.6 85.1 2.5 0.001
FR-2 83.8 2.3 86.4 1.8 0.001
Farmand 123.7 3 128.7 2.1 0.001
FR-2 124.8 3.6 128.4 3.3 0.001
Farmand 110.1 7 104.4 5.7 0.001
FR-2 110.3 5.3 104.6 4 0.001
Farmand 95.7 7.3 101.9 6.6 0.001
FR-2 91.7 8 98.9 6.5 0.001
Farmand 117.8 5.5 118 6.7 0.777
FR-2 118.1 4.8 119.1 5.9 0.326
Farmand
All patients were instructed to wear the appliances
full-time except for eating, contact sports, and tooth
brushing. Lateral cephalograms of the samples
were taken in centric occlusion at the beginning
and at the end of the treatment.
The angular and linear cephalometric measure-
178
p-value
SD
FR-2
Co-Pog (mm)
After reatment
Mean
FR-2
SNB (°)
Before treatment
ments used for comparison of the treatment results
of the two groups were as following: SNA, SNB,
ANB, Witts (connecting points A and B perpendicu-
lar to occlusal plane), GoGn (the distance between
the gonion and the gnathion representing the man-
dibular length), CoGn (the distance from the con-
Stoma Edu J. 2017;4(3): 176-181
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