This article provides information about a recently introduced, mercury
-free restorative alloy. This direct placement alloy uses gallium rath
er than mercury to mix the alloy particles. The material has recently
been approved for use in the United States. Although its handling and
physical properties are similar in most ways to amalgam, there are a f
ew differences that require careful attention to assure success for th
e restoration. This article discusses these handling characteristics,
the procedures for placement, and offers specific directions and recom
mendations to avoid potential problems with its use. Information on re
cent clinical research is included in the article.