The ancient Maya may have had sophisticated dentists

Centuries before the advent of novocaine electric drills and x-rays, the ancient Maya may have been closing tooth cavities ...
Nature

No difference in the long-term clinical performance of direct and indirect inlay/onlay composite restorations in posterior teeth

Medline, Embase, the Cochrane Oral Health Group's Trials Register and CENTRAL. Unpublished literature was searched on ClinicalTrials.gov, the National Research Register, and Pro-Quest Dissertation ...