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.
Sometimes trauma can lead to root resorption, which may be impossible to treat. For a comparison of the two treatments see this page. If saving a dead tooth, by means of root treatment, is the chosen option â further cosmetic and/or strengthening treatment may be needed. Dead tooth whitening may be an option on front teeth that have taken little or no structural damage. Veneers may be another option on front teeth.