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 treatments can lead to the gums receding. This may be intentional (for example to expose a tooth that is buried in the bone, or make a tooth âlongerâ to allow for better fitting crowns). Unintentional causes include ill-fitting crowns or dentures. Trauma to the tissues, for example an oral or lip piercing.