Treatment of severe open bite and mandibular condyle anterior displacement by mini-screws and four second molars extraction: A case report

Table 1 Cephalometric summary

Variables	Norm	SD	Pretreatment	Posttreatment
SNA (°)	83.8	2.8	84.2	83.4
SNB (°)	80	3	77.8	75.5
ANB (°)	3.8	1.9	6.4	8
Wits	-1	1	-3	0.3
SN-MP (°)	34.8	4.1	39.6	39.7
Y-axis (°)	65	3.9	76.3	77.4
N-ANS (mm)	55.9	3.1	54.4	55
ANS-Me (mm)	63.2	4.5	72.9	67.4
S-Go (mm)	79.8	6.2	89.7	85.7
S-Go/N-Me (%)	67	4	67.7	66.4
ANS-Me/N-Me (%)	53	1.8	57.1	55
U1-L1 (°)	120.6	9.1	111	114.8
U1-SN (°)	107.5	5.9	106.9	101.8
U1-NA (mm)	4.4	2.4	3.4	2.4
U1-NA (°)	23.7	5.7	22.7	18.3
L1-NB (mm)	6.8	2.7	12	11.6
L1-NB (°)	31.1	6.1	40	38.9
FMIA (°)	51.8	7.3	43.9	43.1
IMPA (°)	93.9	6.2	102.6	103.7
FMA (°)	31.3	5	33.5	33.2
UL-EP (mm)	2.2	2	0.5	2.8
LL-EP (mm)	3.2	2.7	3.5	6
Z-Angle (°)	69.5	4.8	57.3	50.7
U6 - PP (UPDH) (mm)	24.6	2	24.4	23.8
L6 - MP (LPDH) (mm)	32.9	2.5	39.8	38.3

ANB: Subspinale-nasion-supramental; ANS: Anterior nasal spine; EP: E plane; LL: Lower lip; L6: Lower first molar; Me: menton; MP: Mandibular plane; Go: Gonion; S: Sella; FMIA: The angle between lower central incisor long axis and frankfort horizontal plane; IMPA: The angle between lower central incisor long axis and mandibular plane; PP: Palatal plane; N: Nasion; A: Subspinale; B: Supramental; SNA: Sella-nasion-subspinale; SNB: Sella-nasion-supramental; SN-MP: The angle between sella-nasion and mandibular plane; U1: Upper central incisor long axis; L1: Lower central incisor long axis; FMA: The angle between frankfort horizontal plane and mandibular plane; U6: Upper first molar; UL: Upper lip.