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.
An abfraction lesion, or area of tooth damage, is a loss of enamel or dentin (or both) from the tooth surface. It can be caused by abrasion or corrosion from such things as acid reflux disease or brushing too hard, grinding or clenching the teeth, bite problems, and tongue thrusting.