Amalgam Safety Debate

Question 1

Adv and disadv amalgam?

Answer 1

Adv: durable and cost effective
Disadv: removal tissue = retention, unaesthetic

Question 2

What is public health concern with amalgam?

Answer 2

Mercury

Question 3

What are the alleged symptoms of Hg poisoning?

Answer 3

Chronic fatigue/ anxiety and depression
Burning sensation
Muscle pain/headahce

Question 4

Known symptoms of chronic amalgam exposure?

Answer 4

Gingigivits
Blue discolouration mucosa
Renal dysfunction
Nervous system dysfunction

Question 5

Known acute symptoms of amalgam exposure?

Answer 5

GI symptoms

Respiratory depression

Question 6

How can humans be exposed Hg?

Answer 6

Food, air, water, amalgam - accumulation high [] associated with symptoms

Question 7

Trend in dental disease?

Answer 7

Caries rate fall
Increase periodontal disease
Tooth loss later in life

Question 8

What is Minamata convention?

Answer 8

Global movement to eliminate Hg from all industrial processes including dentistry
Phased down use w/ elimination in 2030

Question 9

How is amalgam being phased out?

Answer 9

Avoid use under 15yrs, pregnant and breastfeeding - unless deemed strictly necessary

Question 10

Conclusion amalgam toxicity?

Answer 10

Unusual for body to have Hg burden from dental activity - dentist higher risk pt
No scientific evidence of widespread release
Allergic reaction mercury rare