The role of B. acidophilus in dental caries.

Abstract

By noting the color of the food and that of the feces it was made certain that each bolus was digested and the waste ready for voiding before the bird could be stimulated to receive food again. The young bird, then, does not take food until. the previous bolus has been digested. Immediately upon swallowing a fresh supply a very complicated reflex is set up, which not only leads to defecation but places the young bird in an unusual position in which the parent bird can most easily ,collect the excreta as voided and remove it from the nest. (2665)Since the first pronouncement by hliller' in 1890 that tooth caries is the result of the acid fermentation of carbohydrates by bacteria, students of this subject have been searching for a specific organism of caries.Kligler2 first pointed out that in the lesions of caries B. acidophilus is commonly present, associated with L. buccalis, C. placoides, and B. putrificus. Later Howe and Hatch3 found in advanced lesions of caries the Moro-Tissier group of organisms associated with certain other types which they called respectively Bacillus X, PI, and Y. More recently MacIntosh, James and Lazarus-Barlow'? ' in England, and Rodriguez' in this country, by the use of acid media have found that in deep carious lesions 1

Effect of the pH of Buffer Solutions on Artificial Carious Lesion Formation in Human Tooth Enamel

“…Since the first attempt of Magitot in 1871 [cited in Bunting and Palmerlee, 1925], many investigators studied the chemistry of carious attack. Although they used microradiography or polarized light microscopy, none of them investigated the characteristics of the lesions in a quantita tive way.…”

The Predominant Cultivable Flora of Carious Plaque and Carious Dentine

“…The precise role which bacteria such as streptococci [Clarke, 1924;Maclean, 1927] or lactobacilli [Bunting and Palmerlee, 1925;E nright et al, 1932] play in human caries is still not known [Burnett and Scherp, 1968]; Scherp, 1971]. In animal models certain types of caries are due to specific Strep tococcus mutans infections [Keyes, 1968],…”

Oral Conditions of Children in Relation to State of General Health and Habits of Life

“…32 Although fifty years has elapsed since the relation between excessive use of carbohydrates and dental caries was first intelligently investigated,21 there is still little agreement as to the mechanism by which such an effect may take place. The difference in the use of adhesive carbohydrates in groups 1 and 2 has been noted.…”