The monk wound thin thread around and around each of our wrists until it resembled a bracelet. He deftly tied a knot. The red bands, never to be cut off, were a symbol of good luck, a way to remove ...
Lasers are a common tool in dentistry. They can be used for teeth whitening, tooth decay, gum disease, and mouth lesions. Using lasers in dentistry for tooth tissue procedures and other dental ...