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REASON UNKNOWN.
But predisposing factors are known that accelerate the appearance of aft in susceptible individuals:
Injury (accidental bite when eating or after local anesthesia during dental treatment, damage to the bristles of the toothbrush or sharp edges of the products, piercing) ⠀⠀⠀⠀⠀ ⠀⠀⠀⠀⠀
Stress (people with RAS have higher anxiety and cortisol levels). School, kindergarten, training, tensions in the family - stress factors for children.
Genetic predisposition.
If someone had RAS in the family, this increases their risk in the offspring. A connection with HLA-B51, Cn7, A2, B12, Dr5 is assumed.
A genetic predisposition was also identified for individuals with PFAPA syndrome (recurrent fever, aphthous stomatitis, pharyngitis, enlargement of the cervical lymph nodes).
Local infection
An association was found between RAS and herpes viruses of types 1-8, human papillomavirus, Helicobacter and L-form streptococci.
But! this does not mean that it is necessary to flee them urgently to treat when detected.
Eating disorders: deficiency of iron, folic acid, zinc, vitamins B1, 2, 6, 12, C and E, selenium.
Gastrointestinal diseases: Crohn's disease, ULC, celiac enteropathy.
Systemic diseases: cyclic neutropenia, Reiter's syndrome, Behcet's disease and HIV infection.
Food allergies and food intolerances (flavorings essential oil benzoic acid cinnamon, gluten, cow's milk, coffee, chocolate, potatoes, cheese, figs, nuts, citrus fruits and some spices
Change in hormone levels during the menstrual cycle and relapses during ovulation or before menstruation)
The action of chemicals:
-high nitrate levels in drinking water
sodium lauryl sulfate in toothpaste
non-steroidal anti-inflammatory drugs
Poor hygiene: a significant correlation has been found between the severity of RAS and oral hygiene. Improving hygiene reduces not only the number of relapses, but their severity.
All of the above factors, individually and in combination, can cause an exacerbation of RAS, therefore, to improve the course, it is important to search for the possibility and removal of the provoking factor
@dental_academy
"tips toward professional dental practice"
BY Dr.salah khalaf
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