By Diane Carman The crisis in access to dental health care in Colorado is growing more severe even as the effort by the state Department of Health and Environment this year continues to highlight improved oral care as one of its 10 winnable battles. A new analysis released Monday by The Colorado Trust found that the number of Coloradans without dental insurance grew 17 percent between 2009 and 2011, and that even people with dental insurance failed to receive care due to cost or a lack of available dental providers. Coloradans need to speak up for the care they need…