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.
Moving Teeth and Receding Gums. The traditional explanation for why orthodontic treatment might cause receding gums is twofold. First, there is the hygiene problem. This leads to increased numbers of bacteria, which can then attack your teeth and gums. Second, the movement of your teeth might cause the gums to detach from the teeth. The places where this was considered most likely was in the movement of the front lower teeth, especially if these teeth were tilted.