Dental A to Z ABCDEFGHIJKLMNOPQRSTUVWXYZ Also in O: OcclusionOdontoblastOdontomeOedemaOncologyOralOral CancerOral HygieneOral MedicineOral SurgeryOrthodonticsOsseointegrationOsteoblastOsteoclast Oral HygieneThe process of keeping teeth and gums clean and free from decay. back