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Table 1 The cervical vertebrae reference points

From: Usage and comparison of artificial intelligence algorithms for determination of growth and development by cervical vertebrae stages in orthodontics

No.Point nameDescription
1SVpThe posterior point of the lower edge of the second vertebra
2SVdThe deepest point of concavity at the lower edge of the second vertebra
3SVaThe anterior point of the lower edge of the second vertebra
4TVupThe posterior point of the upper edge of the third vertebra
5TVumThe center point of the upper edge of the third vertebra
6TVuaThe anterior point of the upper edge of the third vertebra
7TVpmThe posterior point of the center edge of the third vertebra
8TVamThe anterior point of the center edge of the third vertebra
9TVlpThe posterior point of the lower edge of the third vertebra
10TVdThe deepest point of concavity at the lower edge of the third vertebra
11TVlaThe anterior point of the lower edge of the third vertebra
12FVupThe posterior point of the upper edge of the fourth vertebra
13FVumThe center point of the upper edge of the fourth vertebra
14FVuaThe anterior point of the upper edge of the fourth vertebra
15FVpmThe center point of the posterior edge of the fourth vertebra
16FVamThe center point of the anterior edge of the fourth vertebra
17FVlpThe posterior point of the lower edge of the fourth vertebra
18FVdThe deepest point of concavity at the lower edge of the fourth vertebra
19FVlaThe anterior point of the lower edge of the fourth vertebra