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.
Dental decay. This is the most common underlying cause. Nerve damage to teeth. This can be from decay, deep fillings or trauma to a tooth. Can lead to abscess (click here for information on such tooth infection types). Broken filling. Cracked tooth.