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Table 1 Description of the points

From: Changes in facial width according to the ostectomy level of the proximal bone segment in intraoral vertical ramus osteotomy for mandibular prognathism

Point

Description

Nasion

The middle point of frontonasal suture

Porion

The upper margin of ear canal

Orbitale

The lowest point on the infraorbital margin

Menton

The lowest point on the mandibular symphysis

Mandibular F

Mandibular foramen

Coronoid pr

The tip of the coronoid process

Sigmoid N

The lowest point of the sigmoid notch

Condyle

The most superior point of the condyle head

#31-#41

Midpoint between the mesial incisal tips of the both mandibular central incisors

#36 cervical

Buccal alveolar bone margin of the left mandibular first molar

#46 cervical

Buccal alveolar bone margin of the right mandibular first molar

B: MnF-C/Mn F-H

Outermost bone point where Mandibular F Coronal plane and Mandibular F plane intersect

B: MnF-C/Alv-H

Outermost bone point where Mandibular F Coronal plane and Alveolar plane intersect

ST: condyle-C/Sig N-H

Outermost soft tissue point where Condyle Coronal plane and Sigmoid N plane intersect

ST: condyle-C/Mn F-H

Outermost soft tissue point where Condyle Coronal plane and Mandibular F plane intersect

ST: condyle-C/Alv-H

Outermost soft tissue point where Condyle Coronal plane and Alveolar plane intersect

ST: MnF-C/Sig N-H

Outermost soft tissue point where Mandibular F Coronal plane and Sigmoid N plane intersect

ST: MnF-C/Mn F-H

Outermost soft tissue point where Mandibular F Coronal plane and Mandibular F plane intersect

ST: MnF-C/Alv-H

Outermost soft tissue point where Mandibular F Coronal plane and Alveolar plane intersect

ST: coronoid C/Sig N-H

Outermost soft tissue point where Coronoid pr Coronal plane and Sigmoid N plane intersect

ST: coronoid C/Mn F-H

Outermost soft tissue point where Coronoid pr Coronal plane and Mandibular F plane intersect

ST: coronoid C/Alv-H

Outermost soft tissue point where Coronoid pr Coronal plane and Alveolar plane intersect