Cephalometric landmark definitions Flashcards
Point S? (3)
- Sella Turcica
- Midpoint of sella turcica (concavity in hypophyseal fossa)
Point N? (4)
- Nasion
- Most anterior point of front nasal suture
- small depression between the 2 bones
- frontal bone continues more radiolucent
Point Or? (2)
- Orbital
- most inferior point on orbital margin
Point Pt? (4)
- pterygoid
- Most posterior superior point of pteygopalatine fossa
- 10 oclock
- beside deepest wall of maxillary sinus
Point Po? (4)
- Porion
- uppermost outermost point on bony external auditory meatus (entrance of ear)
- 3mm behind condyle
- 12 o clock
Point Co? (2)
- Condylion
- superior posterior point on head of mandibular condyle
Point Go? (4)
- Gonion
- Most posterior inferior point on angle of mandible
- junction between ramus and body
- Trace tangent to body and ramus and divide angle
Point Pog? (2)
- Pogonion
- Most anterior part on bony chin
Point Gn? (3)
- Gnathion
- Most anterior inferior part of mandibular symphysis
- between pogonion and menton (draw tangent and divide)
Point Me? (3)
- Menton
- Lowest part of mandibular symphysis
- junction between body and menton
Point B? (3)
- Supramentale
- most posterior point on profile of mandible
- deepest part between chin point and alveolar crest
Point D? (2)
- name??
- Central point of mandibular symphysis
Point ANS? (1)
-tip of Anterior nasal spine
Point PNS? (2)
- Tip of posterior nasal spine
- junction between hard and soft palate
Point A? (2)
- Subespinale
- Most posterior point on profule of maxilla
Point Ms?
???
Point Um? (2)
- Upper molar
- Most mesial point of contact between upper 1st molar
Point apex UI? (1)
-Apical point of upper central incisor
Point incisal UI? (1)
- Tip of crown of upper central incisor
Point apex LI? (1)
-Apical point of lower central incisor
Point incisal LI? (1)
- Tip of crown of lower central incisor
Point Cm? (3)
- columella
- most anterior point of columella
- at base of nose
Point Sn? (2)
- subnasal
- point in midsaggital plane where base of clumella meets upper lip
Point Ls? (2)
- name???
- point denoting vermillion border of upper lip in mid saggital plane
Point Ad? (3)
- adenoid tissue
- radiolucent
- most prominent point of adenoid tissue
Point Sp? (2)
- soft palate
- most superior point of soft palate
Which 2 are used to find the airway?
-point Sp & Ad
