Show Its It's Positively Taking Breath But Heres Here's the Story of pO CHICAGO Northwestern Northwestern university sity scientists have completed a series se ties ries of taking breathtaking experiments If It you have pO even your best friends wont won't call it halitosis the Northwestern doctors will freeze it into a solid determine its odor intensity in let you know how often you see your dentist and even tell you which of six mouth conditions is la the offender In short they'll take your breath bresth away The work is a joint effort of Dr Leonard S. S Fosdick head of the chemistry department of Northwestern's Northwest Northwest- erns ern's dental school and Drs Glen h r 5 r rest s ill STEP No I 1 This 1 This pretty young patients patient's breath sample is il f frozen row at 10 degrees Centigrade below 11 zero ao E. E Sulzer and Robert H. H Brening also members of the dental denIal faculty From a theoretical point of view breath can be contaminated contaminate l from three primary sources they re te port Odors rI can come from mouth lungs and nasal passages Putrefaction lion tion processes in the mouth mouth like like stagnant saliva decaying teeth pyorrhea py py- pyorrhea and degenerated cells on the tongue tongue may may be responsible They find And too that digestive disturbances disturbances dis may contaminate the brea breath lh Drs Dra Fosdick Sulzer and Brening found a method of segregating the mouth odors by a n special apparatus I which freezes them in liquid nitrogen nitro gets gen for concentration Then with an they can determine deter mine the odor Intensity Selecting a group of patients with no putrefactive lung or nose dis orders and confining their studies to odors arising in the mouth the scientists found six factors can and do contribute to mouth unwholesome unwholesome- ness They are Age tooth decay gingivitis inflammation Inflammation In of the gums pyorrhea and time after meals Age enters en en tens the picture because there is usually an attendant retrogression of body processes including gum recession recession recession re re- cession with a tendency toward py pyorrhea In the sex factor facto it was discovered mouth unwholesomeness Is greater in women than in men as individuals grow older but women are guilty of less mouth odor intensity Intensity In in- Intensity than men Dental decay gingivitis and pyorrhea pyorrhea py each carry an infection Mouth odors increase in proportion to time after aller meals for the apparent apparent ent reason that stagnation may occur occur oc oc- oc cur In a mouth not cleansed by excursion excursion ex of food Regular mouth hygiene it was found will reduce odor concentration Lion tion in the mouth up to 50 per cent In cases of gingivitis pyorrhea and tooth decay general relief depends upon elimination of these diseases Mouth hygiene even though It il amounts only to rinsing the mouth with water reduces the time after aft er meals factor while persons whose pO is enhanced enhance l by coming on-coming age have to be more regular with their hygienic practices c H i is s iv 1 li v ra h STEP Ao With With 2 2 With breath frozen froen Dr hr Sulzer determines odor intensity seven Forty per tent cent o of oJ f cases easel studied were ivere found to have ate breaths in the objectionable class clau |