Disclosed are methods, compositions and kits for whitening teeth and promoting better oral hygiene. This invention is characterized in that the support is heat treated in combination with a chemical treatment using a boron compound. Thus, for example, the adenoviral vector of this invention can contain a foreign gene for the expression of a protein effective in regulating the cell cycle, such as p53, Rb, or mitosin, or in inducing cell death, such as the conditional suicide gene thymidine kinase. Those processes are carried out from the following point of view, the variation of the distance signal levels, the received quantity of light, and the variation of the received quantity of light. A waiting time for drying, before reversing the medium with the side-reversing member, the ink ejected to the medium is set according to an amount of ink ejected by the printing head, and an elapsed-time from when the ink was ejected by the printing head. Modified ones of TTL’ed files may be returned back to their non-local home after such processing.