Diver's mouth syndrome: a field study.

Reports of clinical presentations of diver's mouth syndrome and prevalence of at least one of its symptoms in many successive Joint Service (JS) diving expeditions prompted the author (who is an advanced diving instructor and an Armed Forces dental surgeon and has been present on, or organized, at least six JS diving expeditions in regions from cold temperate to tropical) to construct customized diving mouthpieces and investigate their effectiveness during intensive use in the field.