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DOH100 Sem2 > OSPEE #2 > Flashcards

OSPEE #2 Flashcards

1
Q

What is this instrument and what is it’s function?

A

A area specific curet periodontal instrument used to remove light calculus deposits from the crowns and roots of teeth

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2
Q

Explain this area specific currets design characteristics

A

Long, complex function shank. Suited for instrumentation of root surfaces.

  • Rounded back
  • Rounded toe
  • Semicircular cross section
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3
Q

What makes the area specific curett unique?

A

The cutting edges are curved. In comparison to a universal curet that has parallel cutting edges

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4
Q

Explain the importance of the area specific curets ‘tilted face’

A

Face is tilted in relation to the lower shank. Causing one cutting edge to be lower than the other on each working-end.

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5
Q

Describe the edges of the area specific curet

A

Only the lower cutting edge is used for calculus removal → called the working cutting edge. The other edge is called the nonworking cutting edge, which helps protect the soft tissue.

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6
Q

Describe the angulation of the lower cutting edge (working edge)

A

Automatically at a 70 degree angle to the tooth surface when the lower shank is parallel.

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7
Q

How do you position an area specific curet in the posterior sextants?

A

Lower shank is parallel to the proximal surface. Functional shank goes up and over the tooth.

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8
Q

Which (2) gracey curets are used for the posterior facial aspect? RHS

A

G11 - Facial Mesial G14 Facial distal

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9
Q

Which (2) gracey curets are used for the posterior lingual aspect? RHS

A

G12 - Lingual mesial G13 - Lingual distal

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10
Q

Which (1) modified gracie curet would you use for the facial aspect of posterior sextant? RHS

A

G11-14

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11
Q

Which (1) modified gracie curet would you use for the lingual aspect of posterior sextant? RHS

A

G12-13

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12
Q

Define a smooth surface lesion

A

Class V; found on buccal/lingual surfaces. Located in the gingival third/cervical region. Can be carious, and non carious e.g abfraction, abrasion

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13
Q

What are risk factors for carious and non carious lesions (class V)?

A

Carious: -

  • Poor OH
  • Diet
  • Dry mouth
  • Progression of white spot lesion
  • dental prostheses.

Non-carious lesions:

  • Tooth brush abrasion
  • Other habits - Clenching and grinding
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14
Q

What class is this lesion?

A

Class V located in cervical region

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15
Q

What cavity preparation would you undertake for a non carious Class V?

A

For non-carious cervical lesions no further cavity prep.

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16
Q

What cavity preparation would you undertake for a carious Class V?

A

Gingival margin approx parallel with gingival contour (CEJ). Axial depth 1-1.2mm, 90 degree walls

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17
Q

Name the structures on this picture

A

A. Anterior auricular nodes

B. Superficial and deep parotid nodes

C. Facial nodes

D. Submandibular nodes

E. Submental nodes

F. Jugulofigastric node

G. Anterior jugular nodes

H. Deep cervical nodes

I. Retroauricular nodes

J. Occipital nodes

K. Retroauricular nodes

L. External jugular node

M. Retropharyngeal node

N. Deep cervical nodes

O. Accessory nodes

P. Juguloomohyoid node

Q. Supraclavicular nodes

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18
Q

Name the structures on this picture

A

A. Hard palate

B. Soft palate

C. Uvula

D. Posterior wall of the pharynx

E. Dorsal surface of tongue

F. Fauces

G. Maxillary tuberosity

H. Pterygomandibular fold

I. Posterior faucial pillar

J. Palatine tonsil

K. Anterior faucial pillar

L. Retromandibular pad

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19
Q

The out line of this cavity preparation is? a) under extended b) over extended

A

Under extended

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20
Q

The out line of this cavity preparation is? a) under extended b) over extended

A

Over extended

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21
Q

How do you calculate O’Learys Index plaque score?

A

Number of surfaces with plaque present eg. M, L, B, D divided by no of surfaces examined eg. 32 teeth times 100

no. surfaces w plaque present / no. of surfaaces examined x 100 = %

22
Q

What is this?

A

Materia Alba: it is associated with biofilm, loosely adherent mass of bacteria. Visible without use of disclosing agent.

23
Q

Name the (5/6) treatment phases for treatment planning

A
  1. Preliminary Phase
  2. Phase 1 (non surgical phase).
  3. Evaluation
  4. Phase IV (maintenance phase)
  5. Phase II surgical phase / phase III restorative phase
24
Q

Explain this furcation involvement

A

Class I. Concavity can be felt with probe. Probe tip cannot enter the furcation area.

25
Q

Explain this furcation involvement

A

Class II. Probe tip can partially enter the furcation. Extends about one-third of the tooth. NOT able to pass completely through.

26
Q

Explain this furcation involvement

A

Class III. Mandibular molats probe passes completely through the furcation. Maxillary molars probe touches the palatal (lingual) root

27
Q

Explain this furcation involvement

A

Same as class III, except the the furcation is visible clinically due to recession.

28
Q

What is this symbol?

A

Class I Furcation

29
Q

What is this symbol?

A

Class II Furcation

30
Q

What is this symbol?

A

Class III Furcation

31
Q

What is this symbol?

A

Class IV Furcation

32
Q

What is furcation?

A

The loss of alveolar and periodontal ligament fibers in the space between the roots of multirooted tooth

33
Q

What is this radiographic error?

A

Superimposed

34
Q

What is this radiographic error?

A

Increased density

35
Q

What is this radiographic error?

A

Over exposed

36
Q

What is this radiographic error?

A

Bent film

37
Q

What is this radiographic error?

A

Light exposure

38
Q

What is this radiographic error?

A

Over-lapping proximal surfaces

39
Q

Name these (3) structures

A

Alveolar crest, Lamina Dura, PDL space

40
Q

What is this?

A

Cervical burnout

41
Q

What are these (19) common landmarks?

A
  1. Middle cranial fossa
  2. Orbit
  3. Zygomatic Arch
  4. Palate
  5. Styloid process
  6. Maxillary tuberosity
  7. External oblique ridge
  8. Angle of the mandible
  9. Hyoid bone
  10. Glenoid fossa
  11. Artcular eminece
  12. Mandibular condyle
  13. Vertebra
  14. Coronoid process
  15. Pterygoid plates
  16. Maxillary sinus
  17. Ear lobe
  18. Mandibular canal
  19. Mental foramen
42
Q

What is this?

A

Mental foramen

43
Q

What is this?

A

Type I. Plaque induced gingival disease. Most common, inflammation without CAL.

44
Q

What is this?

A

Type I. Non-plaque induced gingival disease. Inflammation without the presence of plaque. Usually of a systemic condition.

45
Q

What is this?

A

Type II chronic periodontitis. Localised <30% of sites demonstrate CAL Generalised >30% of site demonstrate CAL.

46
Q

What is this?

A

Type III. Aggressive periodontitis/ Destruction is not consistent with local factors. Rapid attachment loss and bone destruction. Reoccurance.

Localised: circumpulpal onset. - first molar/incisor presentation Generalised: <30 years of age. Atleast 3 pernament teeth affected besides 1st incisor/molar

47
Q

What is this?

A

TYpe IV periodontitis as a manifestation of systemic disease. Associated with haematological disorder. Associated with genetic disorder.

48
Q

What is this?

A

Type V. Necrotizing periodontal disease. Tissue death.

49
Q

Describe endodontic lesion on the periodontium

A

Type VI. Periodontitis associated with endodontic lesions. Death of pulp due to perio. Perio infec leading to infection of puklp OR infection of pulp leading to destruction of periodontium

50
Q

What is this?

A

Type VII. Developmental or acquired deformities and conditions. Eg. Tooth related factors, pseudopocket, occlusal trauma.

51
Q

What is this?

A

Type VIII. Abscess of the peiodontium: collection of pus in periodontal tissue.

DOH100 Sem2 (10 decks)

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