Special candy developed to 'eat' your cavities - Children delight 12/05/2013 - 00:00 Our mouths are a delicate balance of good and bad bacteria. When we clean our teeth, the aim is to knock out cavity-causing bacteria, while allowing beneficial oral bacteria to thrive. Now, researchers have developed a sugar-free candy, which contains dead bacteria that bind to bad bacteria, potentially reducing cavities.The importance of good oral health has been emphasized by doctors for years. Poor oral health has been linked to many conditions, from Alzheimer's disease to pancreatic cancer, not to mention cardiovascular disease.