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Table 4 Soft tissue measurement indicators and annotations

From: The effect of combined maxillary pad movable appliance and FR-III functional appliance in the treatment of skeletal Class III malocclusion of deciduous teeth

Metric

Notes

NLA(°)

The front cross angle of Sn and Cm connection and Sn and UL connection

FCA(°)

The back angle of the line connecting G and Sn and the line connecting Sn and Pos

UFH(%)

Draw a vertical line from E and Sn to the G-Sn line, and the distance between the two vertical lines

ULL(%)

Sn and Stoms are perpendicular to the Sn-Pos line; the distance between the two perpendiculars

LLL(%)

Mes and Stomi draw perpendiculars to the Sn-Pos line; the distance between the two perpendiculars

ULP(mm)

UL to Sn-Pos connection distance

LLP(mm)

LL to Sn-Pos connection distance

UL-EP(mm)

Distance from UL to Prn-Pos

LL-EP(mm)

Distance from LL to Prn-Pos

Z angle(°)

The line connecting the Pos with the prominence of the lips (upper or lower lip) and the angle between the orbital ear plane (FH)

  1. UFH (%) + ULL(%) + LLL(%) = 100%