Clinical Flashcards

1
Q

What are the 4 types of non-carious tooth substance loss?

A

Attrition - tooth to tooth
Abrasion - foreign object
Erosion - chemical
Abfraction - function

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2
Q

When should we restore a cavity?

A
Alleviare pain
Remove disease
Restore tooth integrity, function and aesthetics
Aid plaque control
High caries risk
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3
Q

When should we avoid restoring a cavity

A

Patient can access the cavitated lesion with cleaning aids
Prior to cavitation
Small, cleanable cavities with no active caries
Can it be remineralised

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4
Q

Describe a Black’s CI cavity?

A

Occlusal surface of molars and premolars, buccal pits of molars and palatal pits of anterior teeth

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5
Q

Describe a Black’s CII cavity?

A

Interproximal surfaces of molars and premolars

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6
Q

Describe a Black’s CIII cavity?

A

Interproximal surfaces of incisors and canines

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7
Q

Describe a Black’s CIV cavity?

A

Incisal edges of incisors and canines

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8
Q

Describe a Black’s CV cavity?

A

Cervical margins

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9
Q

Describe a Black’s CVI cavity?

A

Cusp tips of molars, premolars and cuspids

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10
Q

What are the 4 anatomical sites of a carious lesion?

A

Pit or fissure
Smooth surface
Enamel
Root

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11
Q

What are the 3 classifications of caries?

A

Primary
Secondary
Residual

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12
Q

What are the 3 types of activity of caries?

A

Active
Rampant
Arrested

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13
Q

Indications for a CI cavity?

A

Fissure sealant
PRR
Conventional therapy

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14
Q

Indications for a CII cavity?

A

If confined to enamel - encourage lesion to arrest via Fl

If dentine visible - amalgam or composite possible

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15
Q

Indications for a CIII cavity?

A

Restore with composite

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16
Q

Indications for a CIV cavity

A

Composite

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17
Q

Indications for a CV cavity?

A

Composite

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18
Q

How to prepare a CII cavity?

A

Caries accessed through MR, due to loss of contact area, with a matrix band
Avoid damage to adjacent tooth
If using amalgam create undercuts
If using composite rubber dam is essential

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19
Q

How to prepare a CIII cavity?

A

Access caries palatally

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20
Q

How to prepare shallow and deep root caries?

A

Shallow: - recontoured and Fl applied, if they’re cleansable then restoration may not be necessary
Deep:
- remove caries and restore with GIC or composite

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21
Q

How to prepare a patient for a rubber dam?

A

General outline to patient
Teeth cleaned and contacts checked with floss
Rough contacts smoothed
If occlusal restoration work planed, occlusion should be marked prior
Lips lubricated
LA given for clamp

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22
Q

How many holes to punch for an anterior tooth?

A

First premolar to first premolar

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23
Q

How many holes to punch for a posterior tooth?

A

Tooth needed for restoration as well as one further distal tooth

24
Q

How to apply the rubber dam clamp?

A

Clamp bow towards distal aspect
Apply from lingual to buccal
Ensure 4 point contact

25
Q

How to prepare the enamel of a cavity?

A

Gain visual access of the carious lesion
Remove demineralised, weakened carious enamel
Create a peripheral enamel margin to be able to form a seal
High speed

26
Q

How to correct enamel margins?

A

Unsupported enamel is weak and prone to fracture
Thin section of material is weak and prone to fracture
Bevel to increase surface area for bonding (not amalgam)

27
Q

How to correctly remove dentine from a cavity?

A

Lateral extent from the EDJ periphery to the caries overlying the pulp
Slow speed
Circular brush-strokes

28
Q

What is the definition of a line angle?

A

Where 2 surfaces meet

29
Q

What is the definition of the cavosurface angle?

A

Where the cavity wall meets tooth surface (between 90-110)

30
Q

What is the cavo-surface angle for amalgam and composite?

A

Amalgam:
- 90
Composite:
- >90, with bevel

31
Q

What is the definition of a point angle?

A

Where 3 or more surfaces meet

32
Q

What is the purpose of rounded angles?

A

Reduces stress in restored unit

Reduces loss of tooth tissue

33
Q

What occlusal anatomy should you try and preserve?

A

Oblique ridge in max molars

Marginal ridge in anterior/premolar teeth

34
Q

Explain the clinical protocol for a fissure sealant?

A
Isolate - rubber dam
Clean tooth
Etch for 20-30s
Wash for 10-20s and then dry for same amount of time
Apply FS
Apply light for 20-30s
Check sealant for seal and retention
35
Q

Explain the clinical protocol for a PRR?

A
Etched for 20s
Washed for 10s
Primer for 10s
Gently air dry to leave fine layer
Apply 2-3 coats of adhesive
Gently air dry and light cure for 10s
Apply composite to cavity incrementally as required. Shape with burnisher or flat plastic between increments
20-30s light application
Apply fissure sealant
36
Q

How to recreate a proximal wall for a CII restoration?

A

Proximal box:

  • buccolingual extension of 0.2-0.3mm clearance from the adjacent tooth buccally and lingually
  • gingivally there should be a 0.5 mm from adjacent tooth
  • axial wall should follow the external tooth contour
37
Q

What is the size of the proximal box?

A

1.5mm

38
Q

What is the depth of the proximal box?

A

1.5-2mm

39
Q

Explain the clinical protocol for a CV cavity?

A

Rubber dam helps to retract gingiva and gives isolation
Remove caries
Etch, prime and bond
Restore with GIC or composite

40
Q

Explain the cavity needs for an amalgam restoration?

A
Depth occlusally at least 2mm
Cavity floor flat
Walls should be parallel with slight convergence
No unsupported enamel margins
No sharp angles
Undercuts
41
Q

Explain the condensation rules of amalgam?

A
Condenser tooth must fit
Place amalgam in small increments
Condensing for up to 4 mins
Overfilled with amalgam
Condense with heavy pressure - hear a squeak - promoting adaptation to cavity walls and eliminates voids
42
Q

Explain the carving rules of amalgam?

A

Remove gross excess
Use probe to relive a ring around the matrix band and contour the marginal ridge after carving
CArver should rest on enamel/cusps adjacent and be parallel to the margin of the prep
Do not let tip of carver leave the middle of resto
Centre should be smoothed with a burnisher
Follow the cusps with tool

43
Q

What to include when reporting on a radiograph?

A
Date taken
Type of radiograph
Grade
Teeth present
Caries
Restorations
Plaque retentive factors
Bone level
Other
44
Q

BPE Code 0?

A

Pocket <3.5mm

No plaque or calculus/overhangs, no BoP (black band entirely visible)

45
Q

BPE Code 1?

A

Pocket <3.5mm
No plaque or calculus/overhangs
BoP
(black band entirely visible)

46
Q

BPE Code 2?

A

Pocket <3.5mm
Supra or subgingival plaque/calculus/overhangs
(black band entirely visible)

47
Q

BPE Code 3?

A

Probing depth between 3.5-5.5mm

Black band partially visible, indicating a pocket 4-5mm

48
Q

BPE Code 4?

A

Probing depth >5.5mm

Black band disappear, indicating a pocket of 6mm or more

49
Q

BPE Code *

A

Furcation involvement

50
Q

Treatment for BPE Code 0?

A

None

51
Q

Treatment for BPE Code 1?

A

OHI

52
Q

Treatment for BPE Code 2?

A

OHI

Removal of plaque retentive factors, including all supra and subgingival calculus

53
Q

Treatment for BPE Code 3?

A

OHI
Removal of plaque retentive factors, including all supra and subgingival calculus
6 point pocket chart recording pockets over 4mm (in that sextant)
Possible root surface debridement

54
Q

Treatment for BPE Code 4?

A

OHI
RSD
6 point pocket chart in all sextants
Assess for more complex treatment (UNC15)

55
Q

What to include for a periodontal assessment?

A
Type
Distribution
Stage
Grade
Status
Risk factors