There’s something rather laughable about grown adults wearing braces. Braces are forever associated with adolescence, with being a nerdy geek at the front of the class, of being rubbish at sports, of not being in any way cool or self-possessed. None of these are attributes that grown-up people in careers …

The trouble with bridges is that they break and when they break, people get left with an unsightly gap in their teeth and it can make it hard to eat and speak clearly. When a bridge fails, it’s often people’s first thought to get the damn thing fixed or get …