Asthma Flashcards
Definition of asthma
chronic (long-term) inflammation of the airways, potentially reversible
Pathophysiology of Asthma
1.) Trigger Factor
2.) airway inflammation
3.) hypersecretion of mucus, airway muscle contraction, swelling of bronchial membranes
4.) narrow breathing passage
5.) wheezing cough, shortness of breath
Basically something triggers it. Your lungs get inflammed, start to swell and mucus forms, so u start coughing / wheezing.
Strongest risk factor:
Atopy: Genetic predisposition to allergy reaction. Its basically another disease that causes allergies (thus asthma)
Sex/Age of prevelance of asthma
Sex: Childhood: 2:1 male female
puberty: 1:1 male female
Adults: female more
40+ : mainly female
Age: More often in younger children due to high level of physical activity
Signs Symptoms of Acute Asthma
expiratory wheezing
Coughing etc
*Most common cause of asthma in dentistry:
Allergic and drug-induced asthma = 2 most relevant cases in dental practice
Important: Classification of Asthma by etiology:
Intrinsic: non-allergenic, non-atopic, non-immunologic
Extrinsic: Allergenic, atopic, immunologic
Mixed: both
Classification of asthma by severity:
Mild : complete sentences
Moderate severe : unable to speak full sentences
Severe : breathless at rest, cant lie down
Imminent respiratory failure : altered mental status, diaphoresis (excessive sweating)
Oral changes due to type of asthma medication:
Prolonged use of B2 agonist inhalers that contain sugar : increased rate of caries
Inhaler use can associate with albuterol use, increased levels of gingivitis, increased prevalence of oral tissue changes: Reduces salivary flow
Possible cause of dental erosion:
Reduction of salivary flow due to b2 agonists
Increase teeth’s exposure to acid
Possible cause of periodontal disease:
Mouth breathing can cause dehydration of alveolar mucosa
Reduction salivary flow from b2 agonists
more IgE, less IgA alters immune response
more calculus from more calcium / phosphorus in saliva
decrease bone mineral density due to inhaled steroids
Possible causes of dental caries:
decreased salivary flow from b2 agonists
inhalers lower pH
more lactobacilli/streptococcus mutans in saliva
Dental care recommendations / instructions:
Use fluoride
more dental visits
reduce stress
antibiotics
Rinse mouth after inhaler