The diagnosis and management of bad breath can be easily incorporated in ro
utine dental care by attending dentists, This article outlines the informat
ion necessary to establish a differential diagnosis of oral malodor. This i
ncludes evaluation of medical, dental, and halitosis history. It also inclu
des the examination of extraoral and intraoral tissues and a thorough perio
dontal examination. The presence of bad breath is established with organole
ptic and hydrogen sulfide-monitor (Halimeter) measurements. The treatment o
f malodor resulting from oral overgrowth of anaerobic organisms in the oral
cavity consists of mechanical and chemical reduction of the microbial flor
a by methods that are supported by scientific evidence.