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.
It is usually a slow process, caused by bacteria that colonise on the teeth and in the sulcus (the space between the teeth and gums). These sulcular bacteria create acids, enzymes and toxins that decay and erode the structures that support the teeth (periodontium).