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 plaque and tartar can also be a cause for receding gums. It can develop due to inadequate care and cleansing of the teeth and oral cavity. Some life stages such as puberty, menopause and pregnancy in women can result in hormonal fluctuations. These fluctuations can also a predisposing factor for receding gums.