This dentist was in fact a real pioneer, specialising in advanced conservation, to the extent that he successfully performed an apicectomy on my upper first premolar, which had developed a huge cyst.

We observed a gingival mass with diameter of ∼8 mm next to the upper second premolar (Fig. 1). We took a 5-mm biopsy sample from the gingival mass, immediately made an impression smear and ...

They were able to extract DNA from a single premolar tooth taken from the mandible. The tooth's cementum and enamel were removed, the tooth was ground into powder, and the sample was zapped with ...

The president said it was his lower right premolar (tooth 29) that hurt, according to a note from Dr O'Connor. A presidential dental team from Walter Reed National Military Medical Center ...

Explore daily insights on the USA TODAY crossword puzzle by Sally Hoelscher. Uncover expert takes and answers in our ...