STRESS- Stress 2 Flashcards
Name some non dental illnesses aggravated by stress
- Heart failure
- Gastro esophogeal reflux disease
- Asthma
- Psoriasis, acne
- Back problems
- Diabetes
- depression, anxiety
- Irritable bowel syndrome
List some dental conditions aggravated by stress
- Periodontal disease
- Aphthous ulceration
- Acute necrotising ulcerative gingivitis
- Temporomandibular joint disorders
- Bruxism
- Burning mouth syndrome
- Recurrent herders labialis
What is Acute necrotising ulcerative gingivitis characterised by?
- Gingival necrosis
- Ulceration
- Pain
- Bleeding
What is Temporomandibular joint disorders
Tightening of facial or jaw muscle can be associated with bruxism
What is burning mouth syndrome
Intra oral burning sensation with no obvious cause
Does stress effect the development of caries
No there is no evidence
BUT maladaptive behaviour to cope with stress may influence development of caries
Describe short term stress response
- Increased heart rate
- Increased blood pressure
- Bronchioles dilate
- Liver converts glycogen to glucose and releases glucose to blood
- Blood flow changes reducing digestive system activity and urine output
- Increased metabolic rate
Where is stress perceived?
The limbic system of the brain
How is short term stressed perceived
- Perceived in the limbic system
- The stress is then conveyed through nerve impulses
- These travel through the spinal cord and preganglionic sympathetic fibres
- Travels to the adrenal medulla
What happens when stress is detected by the adrenal medulla
Secretes amino acid based hormones (epinephrine, norepinephrine)
How is long term stressed perceived
- Perceived in the limbic system
- Hypothalamus releases corticotropin- releasing hormone
- These travel to the corticotropin cells of the anterior pituitary
- CRH prompts these cells to release adreno corticotropin hormone (ACTH)
- ACTH travels through the blood to the adrenal cortex
- Prompts adrenal context to secrete steroid hormone
- Mineralocorticoids and Glucocorticoids released
What is ACTH?
adreno corticotropin hormone
Name the 2 steroids produced by the adrenal cortex in response to long term stress
- Mineralocorticoids
2. Glucocorticoids
What affect to Mineralocorticoids have?
- Kidneys retain sodium and water
2. Blood volume and blood pressure rise
What affect to Glucocorticoids have?
- Proteins and fats converted to glucose or broken down for energy
- Blood glucose increases
- Immune system suppressed