Vitaldent, the big Spanish and Italian dentistry chain, has been engulfed in a tax scandal. This came a few weeks before an auction was about to start to sell the business, which boasted EBITDA of €35m. In 2015, PAI came close to paying €200m for the group. Observers say the brand has been trashed so badly that the group, which gets over half its sales from franchisees, may not survive.