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BDS3 sem 1 > Occ > Flashcards

Occ Flashcards

1
Q

Draw Posselt’s Curve

A
  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
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2
Q

Teeth intercuspal position

Draw contact

A

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

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3
Q

Class 1 C & M Angle Classification

A

LHS
-\/–\/\/
/--/\/\

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4
Q

Class 2 C & M Angle Classification

A

LHS
\/—\/\/
-/-–/\/\

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5
Q

Class 3 C & M Angle Classification

A

LHS
–\/—\/\/
/-–/\/\

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6
Q

Teeth Eruption Time

Primary

A

NXI

6mth

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7
Q

Teeth Eruption Time

Permanent

A

MAIN

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

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8
Q

Facebow - cant in occ

A

Superior to dot made intercondylar axis

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9
Q

Lateral excursion:

A

Working & non-working side

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10
Q

Movement Right:

A 
Working = right: rotate, down, forward, lateral
non-working= left: orbiting, down, forward, medial
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11
Q

Articulator:

A

15o Bennet angle= non working side, sagittal plane

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12
Q

Balancing side:

A

mvmt FROM direction md moves (not to)

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13
Q

Retruded condylar axis:

A

both condyle in retrusion

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14
Q

Michigan Splint steps:

A
  • 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
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15
Q

Draw scammons growth curve

A

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

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16
Q

Boy growth:

A

Starts later, lasts longer, peaks higher

17
Q

Butler Theory:

A

Md= Lat incisors

Mx=central

18
Q

Scissor Bite

A

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

19
Q

Cross Bite

A

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

20
Q

M. of Mastication:

A

Masseter
Temporalis
Medial Pterygoid
Lateral Pterygoid

21
Q

Masseter Origin and Insert:

A 
Deep:
Origin=Zygomatic Arch
Insert=Upper Ramus
Superficial:
Origin=Zygomatic Process of Mx
Insert=Lateral Md Ramus
[Function: Elevate, protrude, ipsilateral excursion]
22
Q

Temporalis Origin and Insert:

A

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

23
Q

Medial Pterygoid Origin and Insert:

A

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

24
Q

Lateral Pterygoid Origin and Insert:

A 
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]
25
Q

Anterior Digastric motor innervated by:

A

V

26
Q

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

A

Tensile

27
Q

Ant 2/3 tongue

A

Chorda tympani

28
Q

TW:

A

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

29
Q

Attrition:

A

Diurnal = centric
nocturnal= eccentric
Lateral and protrusive

30
Q

GORD

A

stomach reflux

Cause: Mucosal erosion, Barrets oesophagus, adenocarcinoma

31
Q

Day GORD:

A

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

32
Q

Night GORD:

A

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

33
Q

GORD tmt:

A

remove cause, medical/GP, NG, defences (saliva, remin)

Defer rest until resolved

34
Q

Age of calcification:

A 
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
35
Q

How long to crowns take to develop?

A

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

36
Q

How long for roots to develop?

A 
I=4-5yrs
CPM=7-8yrs
6s=6yrs
By 9y.o 6s all done
Every 1/4 progression + 1 yr to age
37
Q

Hypodontia

A

Missing teeth

38
Q

oligodontia

A

missing 6+ teeth

39
Q

Hyperdontia

A

extra (supernumery) teeth

BDS3 sem 1 (12 decks)

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