An elongated prophy paste container has a length at least twice the width to receive a prophy cup therein and facilitate the loading of prophy paste thereon for use in a prophy operation. The elongated container can be formed with optional detent members at the opposing ends of the container to engage indents in a corresponding support member to retain the container in engagement with the support member during use of the container. The support member can be configured to mount onto a dental instrument or to incorporate a stand that can sit on a flat surface. The configuration of the support member for mounting on a dental instrument can have a dual receiver configuration to engage dental instruments with different diameters. The configuration of the support member incorporating a stand can be formed with an elongated neck to permit positioning thereof between the fingers of the dental hygienist.
