This study was to investigate the oral health condition and variation of number of microorganism after
consistent care for oral health from september 2013 to December 2013 the object of experiment has been
implemented by a number of 27 adult who agreed to the participation in the dental hygiene care process
out of visting the hospital in the D university location in Busan area the result of experiment was as
follows. with regard to the variation of oral condition in accordance with the age and gender, the
experiment result of halitosis showed that –3.33 for men and –9.40 for women, which showed that the
value of women decreased a bit than that of men, but it was not statistically significant. with regard to the
variation of oral condition according to the age the experiment result of halitosis showed that the 1.55 for
adults over 30 and –10.06 for adults below 29 which showed that adult below 29 decreased the
experimental than that of adults over 30. so, it was statistically significant. while with regard to the
variation of oral health condition according to the time of toothbrushing instruction the experimental value
showed that 2.60 for before instruction and 2.03(P<0.001) for after instruction in PHP, but it showed that
8.23 for below 29 and 14.38(P<0.003) for over 30 in O’leary index. so it was statistically significant.