Abstract: Antiseptic dental shields for preventing contamination of hand-held dental devices with infective micro-organisms or other pathogenic substances are disclosed. Such shields comprise an elongated disposable sanitary sleeve which cover at least a substantial portion of exterior surfaces of the hand-held dental devices. The sleeves are flexible, transparent, and sufficiently thin for accommodating manual manipulation of controls on the hand-held dental devices while maintaining sterility thereof. A disposable hanger adapter can be employed to connect with existing hangers which conveniently mount hand-held dental devices to further prevent contaminants from being transferred from one dental patient to another.