Digital Smile Design allows dental workers to visualise the teeth, gums, lips, and how they all work together to form a beautiful smile through the use of images, movies, and temporary mock-ups.

“In this study, we managed to replicate human appearance to some extent by creating a face with the same surface material and structure as humans,” professor Shoji Takeuchi, the team leader ...

“A smile cures the wounding of a frown” wrote Shakespeare. And he’s right. They are mainly caused by a natural drop in collagen and elastin, though genetics and sun exposure also play a role.

Whether or not a photographer prompts subjects to “say cheese,” many of us probably default to a wide smile at picture time. But when taking a photo for a passport, you need to resist that urge.

A Reuters report states that scientists at the University of Tokyo successfully cultivated human skin cells in the form of a face and used embedded ligament-like attachments to create a wide smile.