試題詳解

18 What is the core technique of the new dental care method?
(A) It uses a special kind of plastic in filling the cavity which protects the tooth more effectively.
(B) It provides better protection of the tooth by accelerating the natural remineralization process.
(C) It uses a special chemical which can grow the bacteria in the cavity.
(D) It uses an artificial enamel to replace the infected enamel in the cavity.