Indiana University-Purdue University Indianapolis (IUPUI) / This clinical study evaluated the effects of conditioning agents
for pit and fissure sealants on the bacteria present in occlusal grooves
and fissures in permanent molars. The conditioning agents, 50 percent
phosphoric acid and 50 percent phosphoric acid attenuated with 7 percent
zinc oxide, with distilled sterile water being used as a control, were
compared for their ability to kill bacteria in carious occlusal lesions.
Eighty-six teeth from children eight to twelve years of age were conditioned
with one of the randomly assigned agents using a blind method to
prevent bias. The teeth were then cultured with a method that measured
results as to growth or no growth after incubation. The culturing was
done at both the occlusal surface and the depth of the lesion.
A chi square test demonstrated that there were no significant differences
between the conditioners on either the occlusal or depth of the
lesion cultures (x2 = .31, df = 2, a = .05). The two conditioners did not totally kill the bacteria in occlusal
lesions often enough to justify their use as bactericidal agents before
sealants are applied.
| Identifer | oai:union.ndltd.org:IUPUI/oai:scholarworks.iupui.edu:1805/4148 |
| Date | January 1976 |
| Creators | Johns, Michael R. (Michael Reed), 1946- |
| Source Sets | Indiana University-Purdue University Indianapolis |
| Language | en_US |
| Detected Language | English |
| Type | Thesis |
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