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.
Tooth Abscess Causes. The number one cause of a tooth abscess is poor oral hygiene. Abscess teeth occur when bacteria has the chance to build-up and enter into the dental pulp. The dental pulp is the most important part of each tooth, where the blood vessels, nerves and connective tissues are.