distribution and impact of caries/perio disease :)

Question 1

how do we deicide which oral conditions are of public health importance

Answer 1

• Is the condition common or if it is rare how severe is it?
• What impact does it have on individuals?
• What impact does it have on society?
• Is the condition preventable or are effective treatments available?

Question 2

epidemiology

Answer 2

• Study of the distribution and determinants of disease

* Population and not the individual is the unit of interest

Question 3

provenance

Answer 3

• % of a population that have the disease in question now, divided by the population at risk

Question 4

indidence

Answer 4

• No. of new cases of a disease divided by the population at risk in a given time period

Question 5

distribution in the population

Answer 5

• Differences between age groups, genders, socio-economic status

Question 6

properties of an ideal index to measure disease

Answer 6

• Clear, quick and simple to use
• Acceptable
• Specific - well defined criteria
• Reliable
• Objective (not susceptible to examiner opinion)
• Consistent and repeatable
• Sensitive (detecting small changes)
• Capable of giving data suitable for statistical analysis

Question 7

attrition

Answer 7

Loss of tooth substance as a result of tooth to tooth contact

Question 8

abrasion

Answer 8

• Pathological wear of tooth substance by a foreign object independent of occlusion

Question 9

erosion

Answer 9

• Loss of dental hard tissue by a chemical process which does not involve bacteria

Question 10

attrition showing

Answer 10

• Flattend off teeth
• Can see dentine on mandibualrteeth
• Occurs gradually
• Increases sensitivty

Question 11

abrasion showing

Answer 11

• Abrasion cavity
• Vigorous teeth brushing or too often
• Will wear away the gum
• Exposes some of the dentine

Question 12

risk factors for non carious tooth loss

Answer 12

host factros
- e.g. salia flow
tooth factors 
- acid resistance
-pellicle protection
diet
- acidic beverages
medication

Question 13

impact of non across tooth loss

Answer 13

If severe, potential for impact on:
•	dental appearance
•	dentine sensitivity
•	chewing and eating ability
Potentially, if severe:
•	Missing from work or school of
•	Patient
•	Carer
•	Costs of treatment

Question 14

orla cancer

Answer 14

A malignant tumour arising from structures in the mouth

Presents as red/white patch, ulcer or lump

Question 15

head and neck cancer

Answer 15

• carcinomas of the oral cavity, pharynx, and larynx as well as other tumors that affect the head and neck

Question 16

risk factors for cancer

Answer 16

• Tobacco
• Alcohol
• Diet and nutrition
• Human Papilloma Virus
• Sunlight (lips are included in the oral cavity)

Question 17

imapact of oral cancer on society

Answer 17

• Premature death
• Economic inactivity
• High costs of treatment
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