Date: Fri, 22 Sep 1995 11:54:25 EDT From: Undetermined origin c/o LISTSERV maintainer Subject: Re: 'dental dam' Jesse's definition of "dental dam" is fine, but I'd like to add that they were originally introduced for use in certain kinds of dental surgery (hence the name), I think to reduce the risk of infection by protecting an open wound in the mouth from infection by the dentist's hand and/or to protect any microscopic cuts on the dentist's hand from possible infection by the patient's blood. (My dentist wears rubber gloves instead, which is much easier for me to deal with.) Vicki Rosenzweig vr%acmcr.uucp[AT SYMBOL GOES HERE] New York, NY