Many of us anticipate a visit to the dentist with a feeling of foreboding, if not outright dread. When was the last time you fist-bumped your dentist when she said you needed a root canal? But over the course of the next two weeks, a team of McGill Dentistry professors and students will be greeted with hugs, handshakes, tears of joy – and, of course, smiles, countless smiles – as it travels to Nicaragua to provide free dental care to hundreds of impoverished people.