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5th yr- Finals- CSA revision > Gingival Recession and Dentine Hypersensitivity > Flashcards

Gingival Recession and Dentine Hypersensitivity Flashcards

1
Q

What is gingival recession

A

A situation where you can see the CEJ and underlying gingival margin

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2
Q

Where does the gingival margin lie on a tooth with gingival recession

A

lie apical to the CEJ

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3
Q

Under the new classification scheme for periodontal diseases and conditions (2018) in which section does gingival recession fall in?

A

Other conditions affecting the periodontium

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4
Q

Describe generally the distribution of gingival recession

A

Maxillary first molars and mandibular canines

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5
Q

Why might a patient suffer from recession

A
  1. Periodontal disease
  2. Trauma
  3. Post treatment
  4. Smoking
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6
Q

Give some examples of trauma that may lead to gingival recession

A
  1. Foreign body
  2. Finger nail picking
  3. Toothbrushing (eg brushing too hard etc)
  4. Chemical trauma from topical cocaine
  5. Partial dentures that are poorly designed
  6. Poor oral hygiene
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7
Q

What type of tooth brushing technique is most likely to lead to gingival recession?

A

Scrubbing instead of using a more rounded technique

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8
Q

Give examples of some local plaque retention factors that relined to gingival recession

A

1, High muscle attachment of the lip
2. Frenal pull
3. Restorative dentistry
4. Calculus

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9
Q

Why does periodontal disease sometimes lead to gingival recession?

A

As patients will get bone loss and theres apical migration of the soft tissue

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10
Q

What are the possible consequences of gingival recession?

A
  1. Fear of tooth loss
  2. Plaque retention/ bleeding gingivae
  3. Aesthetics
  4. Root caries
  5. Abrasion
  6. pain due to dentine hypersensitivity
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11
Q

How is dentine hypersensitivity characterised?

A

Characterised by short, sharp pain

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12
Q

What causes the short sharp pain patients experience when they have dentine hypersensitivity?

A

Due to exposed dentine which becomes sensitive in response to a certain stimuli

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13
Q

What can dentine hypersensitivity manifest as?

A

May manifest as a dull ache beyond the duration of the stimulus, possibly as an altered plural response

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14
Q

In what age does dentine hypersensitive peak?

A

20-40 years old

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15
Q

On which surfaces of the teeth is dentine hypersensitivity more frequent?

A

The buccal/ labial cervical areas of the teeth

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16
Q

List, from most to least, which teeth are affected by dentine hypersensitivity?

A
  1. First molars
  2. Canines
  3. Incisors
  4. Second premolars
  5. Molars
17
Q

What does the distribution of dentine correspond to?

A
  1. Areas of gingival recession
  2. Areas of thinning enamel
  3. Areas of cementum loss
18
Q

Name the 3 key factors that lead to hypersensitive lesions

A
  1. Dentine exposure
  2. Tubules made patent/ open
  3. Stimulus
19
Q

Is the pulp vital or non vital in a patent suffering from detente hypersensitivity?

A

Pulp will be vital

20
Q

Give example of stimuli that can trigger a dentine hypersensitivity response

A
  1. Thermal (Hot or cold)
  2. Osmotic hypertonic solutions (Sweet, spicy or acidic)
  3. Desiccation (drying of lesions may stimulate pain)
  4. Electrical (galvanic reactions and EPT)
  5. Tactile (touching probing or tooth brushing)
21
Q

Name the mechanism which may lead to sensitivity condition

A

Hydrodynamic theory

22
Q

What does dentine exposure result from

A

From loss of enamel

23
Q

What can cause loss of enamel

A
  1. Removal of enamel by restorative treatment
  2. Attrition
  3. Abrasion
  4. Erosion
  5. Combined erosion and abrasion
24
Q

What is erosion

A

Loss of enamel and dentine which can lead to surface softening

25
Q

What factors affect erosion

A
  1. pH of the acid
  2. Type of acid
  3. Chemical
  4. Exposure time and frequency
26
Q

Give some of the differential diagnosis for dentine hypersensitivity

A
  1. Cracked tooth syndrome
  2. Incorrect placement of dentine bonding agents
  3. Fractured restorations
  4. Pulpal response to caries and restorative treatment
  5. Restoration left high in occlusion
  6. Palatogingival groove
  7. Chipped tooth
  8. Vital bleaching
27
Q

What should the treatment plan be for a patient with dentine hypersensitivity

A
  1. pain management
  2. Prevent progression
  3. periodontal screening and early tx
28
Q

Give the two ways we can manage dentine hypersensitivity

A
  1. Tubule occlusion
  2. Blocking plural nerve response
29
Q

How can we block tubule occlusion?

A

By applying a artificial barrier eg a varnish, dentine bonding agents, composite resin, GIC and toothpaste

5th yr- Finals- CSA revision (19 decks)

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