Smile Direct Club (SDC) said on Friday claims from dental trade organizations and allegations in a class action lawsuit filed in Nashville federal court against the safety and legitimacy of its teledentistry platform have no factual basis nor scientific or medical justification.

“We will vigorously defend our business model against any entity working to limit consumer choice,” the company said. “These actions are…nothing more than the latest in a stream of unevidenced and misleading attempts by dental trade organizations, certain of their members and others motivated to thwart legitimate competition.”

Shares of Smile Direct rose 6% in afternoon trading.