13. Extra Notes

Question 1

What is the Kotlow system of lip ties?

Answer 1

1. A smooth uninterrupted pass under the tongue
2. A slight interference or bump
3. A significant interference or bump
4. A small, medium, or large piece of membranous mucosal tissue interfering with the finger sweep
5. A thin or thick piece of membranous mucosal tissue attaching close to the tip of the tongue, obstructing the ability to allow a finger sweep. An appearance of a heart shape tip of tongue.

Question 2

If caries in decidous teeth, how much more likely are they to have caries in permanent teeth?

Answer 2

3x more likely to have caries in permanent

Question 3

If enamel defect/hypomin in decids, how much more likely are they to have it in permanent teeth?

Answer 3

4.66x more likely to have it in permanent – Garot 2018

Question 4

What is the caries pattern in occlusal vs interproximal caries?

Answer 4

Question 5

How many roots do upper and lower primary molars have?

Answer 5

Upper primary molars have 3 roots

Lower primary molars have 2 roots

Question 6

What are the localised causes of delayed eruption?

Answer 6

CRISEF

Crowding

Retained deciduous teeth

Impaction

Supernumerary

Ectopic development

Fibrosis / ankylosis

Question 7

Which clinical signs can be used to estime lesion activity?

Answer 7

1. The presence of biofilm covering the lesion may indicate activity, especially in the presence of high and frequent consumption of sugars
2. The condition of the gingiva (local gingivitis in proximity to the lesion) can also serve as a proxy measure to determine whether biofilm has been present over time
3. Lesion characteristics, such as texture, hardness and appearance

Question 8

Describe primary contact points

Answer 8

broader, wider + more gingivally located

Question 9

What is SIC10?

Answer 9

Significant caries index 10

the mean dmft or DMFT of the 10 per cent of children with the highest dmft/DMFT scores

Question 10

What is the order of biofilm formation?

Answer 10

oral biofilm formation occurs in three steps:

1) acquired pellicle formation,
2) pioneer bacterial colonization (nonmature biofilm formation) and finally
3) secondary colonization of various other bacteria (final mature biofilm formation)

Question 11

What is the critical pH of enamel?

Answer 11

5.5

Question 12

What is the critical pH of dentine?

Answer 12

6.2-6.4