If your gums are bleeding or feeling swollen and tender, you might need a deep dental cleaning, aka tooth scaling and root planing. Here's what to expect.

Dental prophylaxis is a regular checkup of the mouth to preempt oral conditions and cleaning of the teeth.

Nano-sized robots manipulated using a magnetic field can help kill bacteria deep inside teeth to ensure the success of root canal treatments after the living tissue has been removed.

And don’t forget to bring your dental-protection devices to every dental or orthodontic appointment for a deep clean while you’re there.