Erosion Flashcards

1
Q

What is erosive toothwear?

A

The combination of erosion plus abrasion/attrition

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2
Q

If the patient shows strong signs of erosive toothwear but says that they don’t experience any reflux, what are THREE potential causes?

A
  • Acidic diet (most common cause of erosive toothwear)
  • Medications (e.g. asthma puffer)
  • Sleep regurgitation
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3
Q

What are FOUR reasons why is acid attack more dangerous during sleep?

A

Decreased:

  • Salivary flow
  • Primary peristalsis (swallowing)
  • Secondary peristalsis (oesophageal)
  • Heartburn (warning)
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4
Q

Why is the mucosa in the oral cavity not as affected by acid attack vs. oesophageal mucosa?

A

Acid is rapidly diluted in the oral cavity.

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5
Q

What are THREE oesophageal manifestations of GORD?

A
  • Reflux oesophagitis (mucosal erosion)
  • Barrett’s oesophagus
  • Adenocarcinoma
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6
Q

What happens in Barrett’s oesophagus and what’s so bad about it?

A
  • Metaplasia (mimics intestinal mucosa e.g. goblet cells)
  • May progress to dysplasia then adenocarcinoma (poor prognosis)
    NOTE: cancer risk is higher with obesity (16.5x)
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7
Q

What is the first-line treatment for GORD related toothwear?

A

Remove the cause. (Prevention is key - remineralising agents only as adjunctive treatment)
- Controlling attrition/abrasion also important (e.g. nightguard, OHI)

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8
Q

True or false: erosive toothwear can occur very rapidly, taking out large scoops of enamel at a time.

A

False, although it does occur rapidly, it occurs in very thin layers at a time (nanometres). This cycle repeats rapidly, leading to the scooped lesions.

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