In order to conform to the tooth, the pressure of pressure anti- thread unnecessary of the gum groove organization which includes the dam which formed anti- method and the device in order to do. The dam has the partition which features the dent. The partition transmission or is non- transmission in the light ray, it is possible to open at least with one end. The dent of the dam, it is heavy viscosity or the place where it possesses putty condition consistency characteristic it fills up extra with the flowability pressure anti- material of fixed quantity. When pressure is added to the dam of the tooth, you put the pressure anti- material under pressure, push in into the groove, set gum organization away from the tooth and in order to expand the pressure displacing and the gum groove, before the dam of the tooth which is loaded you have the support stand tooth conform. In one form of this invention, with the structure of the dam, the pressure anti- material it is possible mechanically to make connect or to make the inner surface of the dam come in contact, or, the pressure anti- material it is possible, to remove simultaneously with the dam, the clean groove which is expanded remains. In another execution form, it fills up the cap with the expansion characteristic material. In another execution form, it fills up the cap with the impregnating compressibility porous material.< Selective figure >Figure 12歯に適合するよう成形されたダムを含む歯肉溝組織の圧排糸不用の圧排を行うための方法およびデバイス。ダムは、くぼみを特徴とする隔壁を有する。隔壁は、光線に透過または不透過であり、少なくとも一端で開口されることができる。ダムのくぼみを、重粘性またはパテ状粘稠性を有する所定量の流動性圧排材料で予備充填する。歯のダムに圧を付加する場合に、圧排材料を圧力下に置き、溝に押し込み、歯肉組織を歯から離して圧排させ、歯肉溝を拡大するように、前負荷された歯のダムを支台歯に適合させる。本発明の一形態において、ダムの構造により、圧排材料をダムの内部表面に機械的に結合または付着させることができ、圧排材料をダムと同時に除去することが可能であり、清潔な拡大した溝が残る。別の実施形態において、キャップを膨脹性材料で充填する。別の実施形態において、キャップを含浸性の圧縮性多孔質材料で充填する。【選択図】図12
