Tooth Development, Caries, Tooth Wear Flashcards Preview

BDS3 University of Adelaide Dentistry > Tooth Development, Caries, Tooth Wear > Flashcards

Flashcards in Tooth Development, Caries, Tooth Wear Deck (13)
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1
Q

Can Erosion wear facets be remineralised?

A

No, as there is an absence of enamel matrix

2
Q

What is Erosive Tooth Wear (ETW)?

A

Erosive tooth wear is erosion in combination with mechanical wear (Attrition and/or Abrasion)

3
Q

Erosive tooth wear can have 2 different aetiologies. What are they and give 2 examples of each

A

Extrinsic: soft drinks, sour candies, vinegar (phosphoric, citric, acetic acids)

Intrinsic: stomach acid (HCl) either via GORD or induced vomiting (eg bulimia)

4
Q

What are the main risk factors for Oesophageal Adenocarcinoma?

A

Obesity
Having Barrett’s Oesphagus
Being a male over 60

5
Q

In what pH range are Fluoride and CPP-ACP effective treatments for oral symptoms of GORD?

A

pH 4-5

6
Q

Why is Sleep GORD more dangerous for teeth?

A

Regurgitation leaves more stomach acids in the oesophagus and mouth for longer periods, resulting in critically low pH (1-2) for hours at a time. This has a rapid effect on eroding teeth.

7
Q

What methods can help minimise damage during GORD?

A

1) Preserving biofilm overnight
2) Increasing saliva
3) Nightguard to protect teeth from other forms of wear
4) Use of remineralisation agents (F, CPP-ACP)
5) Avoiding restorative treatment until erosion is inactive

8
Q

How does Barrett’s Oesophagus manifest histologically?

A

Transition from respiratory epithelium to intestinal epithelium with deep invaginations with goblet cells and glands.

9
Q

What can Reflux Esophagitis progress to?

A

Reflux Esophagitis > Barrett’s Oesophagus > Oesophageal Adenocarcinom

10
Q

What is the prognosis for Oesophageal Adenocarcinoma?

A

High Morbidity

11
Q

How are host defense mechanisms affected during sleep reflux?

A

Decreased Salivary Flow during sleep
Decreased heartburn (conscious warning sign)
Decreased Swallowing Reflex
Decreased Esophageal Peristalsis response

12
Q

How does Normal Reflux (Heartburn) manifest with regard to pH?

A

Predominantly neutral pH but with spikes of pH 2-4 based on reflux episodes

13
Q

How does GORD manifest orally?

A

Dentinal Hypersensitivity

Dental Erosion