Cephs

Question 1

What’s a ceph used to identify?

Answer 1

The analysis and interpretation of standardised skull radiographs to assess facial and dento-skeletal relationships

Question 2

What’s 1?

Answer 2

Calvarium

Question 3

What’s 2?

Answer 3

Cervical spine

Question 4

What’s 3?

Answer 4

Cranial base

Question 5

Name some uses of cephs

Answer 5

*Pre-treatment record
*Diagnosis and treatment planning
*Assessment of vertical and AP skeletal pattern
*Incisor positions and angulations
*Detection of unerupted teeth
*Assessment of soft tissue profile
*Assessing/monitoring growth
*During active treatment
*End of functional appliance treatment
*Monitoring anchorage requirements and incisor inclinations (before space closure)
*Treatment progress for surgical cases
End of treatment/retention??
((Research purposes
*Longitudinal cephalometric studies – ethics?))

Question 6

What is the most reliable cephalometric landmark?

Answer 6

• Points on edges are easier to locate than points within structures as superimposition is less (N Vs Or)

the midpoint of the sella turcica (turkish saddle)

Question 7

What’s 1?

Answer 7

Soft tissue nasion
The midpoint on the soft tissue contour of the base of the nasal root at the level of the frontonasal suture

Question 8

What’s 2?

Answer 8

Nasion

Question 9

What’s 3?

Answer 9

Orbitale

Question 10

What’s 4?

Answer 10

Nasal tip

Question 11

What’s 5?

Answer 11

Columella
Point on the lower surface of the nose, determining the anterior limit of the nasolabial angle

Question 12

What’s 6?

Answer 12

Sella
The midpoint of the sella turcica (turkish saddle)

Question 13

What’s 7?

Answer 13

Articulare
the intersection of the posterior border of the mandible and the lower margin of the cranial base

Question 14

What’s 8?

Answer 14

PNS
Tip of the posterior nasal spine

Question 15

What’s 9?

Answer 15

Gonion
the most posterior inferior point on the angle of the mandible

Question 16

What’s 10?

Answer 16

Pogonion
the most anterior point on the bony chin

Question 17

What’s 11?

Answer 17

Soft tissue pogonion

Question 18

What’s 12?

Answer 18

ANS
the tip of the anterior nasal spine

Question 19

What’s 13?

Answer 19

A point
(subspinale) - the most posterior point on the profile of the maxilla between the anterior nasal spine and the alveolar crest

Question 20

What’s 14?

Answer 20

B point
(supramentale) - the most posterior point on the profile of the mandible between the chin point and the alveolar crest

Question 21

What’s 15?

Answer 21

Menton
the lowermost point of the mandibular symphysis in the midline