| 摘要 |
PROBLEM TO BE SOLVED: To prevent the formation of an excessive repair material or an overhang comprising the repair material between a wall forming means and teeth, by expanding an expandable flexible vessel means in order to press the wall forming means to the wall of a carious tooth, and applying a uniform pressure to the wall forming means. SOLUTION: The end part 11 of a long and thin balloon 10, which forms the expandable flexible vessel means, is tapered, and is terminated with a lid chip 12, and at the same time, the other end 13 is opened, and is connected to a duct 14 which is connected to an expanding fluid feeding source which is an injector 15. A step-form cavitas forming part 18 is formed on a tooth 16 having a carious part 17 on both sides, and the balloon 10 is placed between the tooth 16 and an adjacent tooth under a relationship wherein the balloon 10 partially surrounds the tooth 16, and at the time of expansion, a partitioning wall 19 for the filling of a repair material is brought into contact with the tooth 16. Then, by expanding the balloon 10, the partitioning wall 19 for the filling of the repair material is brought into contact with the tooth 16 in such a manner that the partitioning wall 19 may tightly come into contact with the shape of a recessed part 20, and the repair material is inserted in the cavitas forming part 18. |
