Abstract: A trans-epithelial appliance or shaped article coated with laminin 5. Laminin 5 stimulates cell attachment and may be comprise an insoluble or soluble cell matrix. The appliance will be useful for reducing inflammation and/or infection at the site of entry of the appliance. The appliance may also be used to stimulate gum junctional epithelium adhesion in the treatment of, for example, gingivitis and periodontitis.