Lecture 8

Question 1

Washing your hands everyday is necessary to prevent infection True or False

Answer 1

False- hand washing is not necessary everyday….just use hand HYGIENE because there is a significant difference from hand washing and hand hygiene…. because alcohol sanitizer doesn’t crack your hands like hand washing :)

Question 2

Irritant contact dermatitis

Answer 2

• common in dentistry
• Physical irritation of the skin
• NOT allergic reaction
• dryness, fissuring, redness of hands

Question 3

Irritant reactions

Answer 3

A form of dermatitis caused by contact with a substance that physically or chemically damages the skin

Question 4

Aggravations leading to irritation dermatitis

Answer 4

glove powder frequent washing of hands contact with disinfectant chemicals

Question 5

Sensitizing dose

Answer 5

• initial immune response to allergen
• no symptoms manifested
• latent interval required before sensitivity can be expressed
• # of exposures for sensitization of individual

Question 6

Challenge dose

Answer 6

• exposure to allergen in a sensitized person results in allergic symptoms
• less allergen concentration needed for challenge response
• severity of symptoms dependent on extent of sensitization
• some do not react, or only slightly react to multiple challenges

Question 7

What type of allergic response is Allergic Contact Dermatitis?

Answer 7

Type 4

Question 8

How long does it take to have rash appear after exposure with allergic contact dermatitis?

Answer 8

several hours to days after exposure

Question 9

What type of allergic response is latex hypersensitivity?

Answer 9

Type 1

Question 10

What are you allergic to in the natural rubber latex?

Answer 10

proteins

Question 11

Hypersensitivity reactions (allergies) are a result of

Answer 11

normally beneficial immune responses acting inappropriately

Question 12

Chemicals in dental products can lead to a Type _____ allergy

Answer 12

type 4

Question 13

Latex hypersensitivity symptoms of Type 1 localized reaction

Answer 13

• immediate IgE allergic reaction
• develops within minutes to latex protein challenge
• urticaria, hives, pruritus, rhinitis

Question 14

Latex hypersensitivity symptoms of Type 1 systemic reaction

Answer 14

• more generalized, severe manifestations
• conjunctivitis, laryngeal/ respiratory distress

Question 15

Latex hypersensitivity symptoms of Type 4 reaction

Answer 15

• delayed, contact dermatitis
• slow-forming, localized rash, necrosis, sloughing
• develops within 12-24 hrs to chemical challenge

Question 16

Best treatment for latex allergic persons

Answer 16

latex avoidance