1 (e) Hermetically sealed foods are to have been processed in commercial food processing establishments meeting requirements of section 14-1.21 of this Subpart. 2  The use of home-canned foods in food service establishments is prohibited.
What causes tooth root resorption? A: A study on external root resorption in the journal Schweiz Monatsschr Zahnmed states that trauma, periodontitis, orthodontic treatment, internal bleaching, cysts, tumors or stimuli from a necrotic dental pulp may cause tooth root resorption.
Common Causes of Tooth Abscesses. Common causes of tooth abscesses are severe, untreated tooth decay, tooth injury, such as broken or chipped teeth, and gum diseases like gingivitis or periodontitis. Two other causes are persistent disease and infection following root canal therapy, and infected tooth fillings.