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.
As permanent teeth develop within the jaws, resorption causes the roots of the deciduous teeth to be absorbed by the surrounding tissues. This process of exfoliation of primary teeth and eruption of permanent teeth is usually complete by 6 months of age. The time when the mouth contains both primary and permanent teeth in functional positions is called the period of mixed dentition.