Disclosed are oral care compositions and the use of such oral care compositions for treating conditions caused by biofilm formation. Also disclosed are methods for inhibiting biofilm formation and/or degrading biofilm. The oral care composition includes a sesquiterpenoid and an antimicrobial agent, in which the sesquiterpenoid and the antimicrobial agent are present in an amount effective to inhibit and/or degrade a biofilm in the oral cavity.揭示一種口腔護理組成物以及此類口腔護理組成物於治療導因於生物膜形成之病症的用途。亦揭示用於抑制生物膜形成及/或降解生物膜的方法。該口腔護理組成物包含倍半萜類化合物和抗微生物劑，其中該倍半萜類化合物和抗微生物劑的含量可有效抑制及/或降解口腔內的生物膜。
