Occ

Question 1

Draw Posselt’s Curve

Answer 1

1. Retruded contact
2. intercuspal position
3. edge-to-edge
4. max protrusion
5. rest
6. max hinge opening
7. Max opening
   8&9 Max lateral excursion

Question 2

Teeth intercuspal position

Draw contact

Answer 2

Mx Palatal Cusps in Pits/MR of Md
Md Bu cusps in pits/MR Mx
\/\/\/\/\/\/\/\/\/\/

Question 3

Class 1 C & M Angle Classification

Answer 3

LHS
-\/–\/\/
/--/\/\

Question 4

Class 2 C & M Angle Classification

Answer 4

LHS
\/—\/\/
-/-–/\/\

Question 5

Class 3 C & M Angle Classification

Answer 5

LHS
–\/—\/\/
/-–/\/\

Question 6

Teeth Eruption Time

Primary

Answer 6

NXI

6mth

Question 7

Teeth Eruption Time

Permanent

Answer 7

MAIN

6yrs, 9-10, 11-12, 12-13, 18-25

Question 8

Facebow - cant in occ

Answer 8

Superior to dot made intercondylar axis

Question 9

Lateral excursion:

Answer 9

Working & non-working side

Question 10

Movement Right:

Answer 10

Working = right: rotate, down, forward, lateral
non-working= left: orbiting, down, forward, medial

Question 11

Articulator:

Answer 11

15o Bennet angle= non working side, sagittal plane

Question 12

Balancing side:

Answer 12

mvmt FROM direction md moves (not to)

Question 13

Retruded condylar axis:

Answer 13

both condyle in retrusion

Question 14

Michigan Splint steps:

Answer 14

• Impression > alginate of both arches
• Transfer records > facebow
• Mount Cast on articulator (semi-adj)
• Block out undercuts
• Splint fabrication > Flat Occ= point contact for Bu cusp Md and premolars, - Canine and Incisor contact narrow ant ledge
  >Ant ramp= guide canine/ant lateral (protrusive mvmt)
• Intraoral adj> Firm and comfortable fit
  >Occ table= even bilateral contact in retrusion and long centric
  >Ant ramp= guidance w/o molar contact
  -Pt Instruction = Sleep,OH,storage
  -Review = long term mngmt, adjt after restorations

Question 15

Draw scammons growth curve

Answer 15

200,100,0
Age B,10,20
Lymph, General, Neural

Question 16

Boy growth:

Answer 16

Starts later, lasts longer, peaks higher

Question 17

Butler Theory:

Answer 17

Md= Lat incisors

Mx=central

Question 18

Scissor Bite

Answer 18

MxMd-MdMx (\/^.^\/)

Question 19

Cross Bite

Answer 19

Md bu cusps more bu (mx bu cusp in pits/MRs of Md)
-\/\/-\/\/
/\/-–/\/\

Question 20

M. of Mastication:

Answer 20

Masseter
Temporalis
Medial Pterygoid
Lateral Pterygoid

Question 21

Masseter Origin and Insert:

Answer 21

Deep:
Origin=Zygomatic Arch
Insert=Upper Ramus
Superficial:
Origin=Zygomatic Process of Mx
Insert=Lateral Md Ramus
[Function: Elevate, protrude, ipsilateral excursion]

Question 22

Temporalis Origin and Insert:

Answer 22

Origin= Parietal bone
Insert= Medial Coronoid process
[Function: Elevate, retrude, ipsilateral excursion]

Question 23

Medial Pterygoid Origin and Insert:

Answer 23

Origin= Lateral Pterygoid plate of Sphenoid
Insert= Medial Md Angle
[Function: Elevate, protrude, Unilateral excursion]

Question 24

Lateral Pterygoid Origin and Insert:

Answer 24

Superior:
Origin= Greater wing of sphenoid
Insert= Anterior capsule Articular disc/condyle
Inferior:
[Function: Elevate, retrude]
Origin= lateral pterygoid plate
Insert= Pterygoid fovea condyle
[Function: depress, protrude, contralateral excursion]

Question 25

Anterior Digastric motor innervated by:

Answer 25

V

Question 26

44 Lat on opp tooth= what force is induced on bu 44?

Answer 26

Tensile

Question 27

Ant 2/3 tongue

Answer 27

Chorda tympani

Question 28

TW:

Answer 28

Att: Flat, well defined borders, shiny if active, matched facet on opposite arch, parallel striations Abr: cross-hatch pattern, scratch marks Ero: smooth, scooped out

Question 29

Attrition:

Answer 29

Diurnal = centric nocturnal= eccentric Lateral and protrusive

Question 30

GORD

Answer 30

stomach reflux | Cause: Mucosal erosion, Barrets oesophagus, adenocarcinoma

Question 31

Day GORD:

Answer 31

High Saliva, heartburn (conscious trigger), primary (vol:swallowing) and secondary peristalsis active

Question 32

Night GORD:

Answer 32

Low saliva, no heartburn, no swallowing, secondary peristalsis response.

Question 33

GORD tmt:

Answer 33

remove cause, medical/GP, NG, defences (saliva, remin) | Defer rest until resolved

Question 34

Age of calcification:

Answer 34

``` 1=3mth 2=5mths Mx2=1yr 3=5mth 4=1.5-2.5yrs 5=2.5-3.4 6=birth 7=2.5-3.5 8=7-12yrs ```

Question 35

How long to crowns take to develop?

Answer 35

4 years 6s=3yrs By 8y.o crowns all done

Question 36

How long for roots to develop?

Answer 36

``` I=4-5yrs CPM=7-8yrs 6s=6yrs By 9y.o 6s all done Every 1/4 progression + 1 yr to age ```

Question 37

Hypodontia

Answer 37

Missing teeth

Question 38

oligodontia

Answer 38

missing 6+ teeth

Question 39

Hyperdontia

Answer 39

extra (supernumery) teeth