From Japanese-English FreeDict Dictionary ver. 0.1:
[ichi1] [news1] [nf17] 虫歯 /(en)tʃˈaɪniːz(ja)lˈe̞tə (en)tʃˈaɪniːz(ja)lˈe̞tə/, 齲歯 /(en)tʃˈaɪniːz(ja)lˈe̞tə (en)tʃˈaɪniːz(ja)lˈe̞tə/, 齲 /(en)tʃˈaɪniːz(ja)lˈe̞tə/, [ichi1] [news1] [nf17] むしば /mɯᵝɕˈibä/, (齲歯) うし /ˈɯᵝɕi/, (齲歯) くし /kˈɯᵝɕi/ (noun (common) (futsuumeishi)) (nouns which may take the genitive case particle `no') cavity, tooth decay, decayed tooth, caries