Wednesday, December 30, 2015

'No drill' dentistry shows fillings aren't needed in many cases

Many of us fear going to the dentist, and that fear is made worse by the dreadful prospect that on any given visit, you could be subjected to a whirring drill boring its way through your poor, hurty teeth.
But the findings of a new seven-year study by Australian researchers suggest that many of us have nothing to worry about, with research into 'no drill' oral care techniques showing there's often no need for the traditional 'fill and drill' approach that has defined dentistry for decades.
"It's unnecessary for patients to have fillings because they're not required in many cases of dental decay," said Wendell Evans of the University of Sydney. "This research signals the need for a major shift in the way tooth decay is managed by dentists… Our study shows that a preventative approach has major benefits compared to current practice."
According to the researchers, tooth decay is not the rapidly progressive phenomenon that dentists long believed it was. Because dentists used to think decay was fast-moving, the conventional practice was to identify early decay, remove it immediately to prevent the tooth's surface breaking up into cavities, and fill up the hole that was left with filling.
But decay is not always progressive, say Evans and his team, and even when it is, it develops more slowly than dentists used to think. "For example, it takes an average of four to eight years for decay to progress from the tooth's outer layer (enamel) to the inner layer (dentine)," he said. "That is plenty of time for the decay to be detected and treated before it becomes a cavity and requires a filling."
Developing a set of protocols they call the Caries Management System (CMS), the researchers say tooth decay can be stopped, reversed, and prevented long before a drill comes into play.