Patent ID: 8357731

Claim:
A one-package tooth surface coating material that is stored as one package and is used for forming an outer surface coating directly on the surface of a tooth, comprising: (A) a polymerizable monomer component containing not less than 5% by mass of an acidic group-containing polymerizable monomer; (B) polyvalent metal ions; (C) a volatile water-soluble organic solvent; (D) water; and (E) an effective amount of a photopolymerization initiator; said polyvalent metal ions (B) being present in an amount of 1.0 to 7.0 meq per gram of said polymerizable monomer component (A); said water-soluble organic solvent (C) being blended in an amount in a range of 30 to 150 parts by mass per 100 parts by mass of said polymerizable monomer component (A) and satisfying a condition represented by the following formula (I), α≧20 ·X (I) wherein α is a blended amount of said water-soluble organic solvent (C) per 100 parts by mass of said polymerizable monomer component (A), and X is the amount of said polyvalent metal ions and is a number representing the amount (meq) thereof per gram of said polymerizable monomer component (A), and said water (D) being blended in an amount of 3 to 30 parts by mass per 100 parts by mass of said polymerizable monomer component (A).