Some observations on dental caries in syrian hamsters

Volker, J. F.; Klapper, C.E.

doi:10.1016/0030-4220(54)90053-5

Cited by 18 publications

(7 citation statements)

References 8 publications

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“…In a number of human and animal studies, resistance to dental caries was related with post-eruptive changes or maturation of teeth. Susceptibility to dental caries was shown to decrease with age, agreeing with a general clinical observation that caries incidence is more prevalent in children than in adults [Backer-Dirks, 1966;Carlos, Gittelsohn, 1965;Volker, 1954;Toverud, 1957].…”

supporting

confidence: 79%

“…Susceptibility to dental caries was shown to decrease with age, agreeing with a general clinical observation that caries incidence is more prevalent in children than in adults [Backer-Dirks, 1966;Carlos, Gittelsohn, 1965;Volker, 1954;Toverud, 1957]. Susceptibility to dental caries was shown to decrease with age, agreeing with a general clinical observation that caries incidence is more prevalent in children than in adults [Backer-Dirks, 1966;Carlos, Gittelsohn, 1965;Volker, 1954;Toverud, 1957].…”

supporting

confidence: 78%

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Comparative Properties of Deciduous and Permanent (Young and Old) Human Enamel¹

1983

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Some physico‐chemical properties of the enamel of deciduous and permanent (young and old) teeth were investigated and compared using x‐ray diffraction, infrared absorption spectroscopy, scanning electron microscopy and chemical analyses. Results demonstrated the following: all enamel samples gave x‐ray diffraction patterns of only apatite; all enamel samples gave IR absorption spectra of carbonate‐containing apatite; the α‐axis of deciduous enamel apatite was larger than that of permanent (both young and old) enamel apatite (mean values, deciduous = 9.458 ± 0.003A; permanent =9 443 ± 0.003A); apatite crystallite dimensions increased with age especially along the c‐axis; when compared to permanent, deciduous enamel contained slightly more carbonate, magnesium and HPO42‐; the prism (enamel rods) dimensions were slightly smaller, and the extent of acid‐etching was more extensive in deciduous enamel than in permanent enamel. These observations combined with other factors such as the difference in the orientation of and crystal density in prism rods and the difference in conditions of the oral environment between deciduous and permanent enamel may account for the reported observations of a decrease in caries prevalance with age.

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supporting

confidence: 79%

supporting

confidence: 78%

Comparative Properties of Deciduous and Permanent (Young and Old) Human Enamel¹

1983

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“…This is not unexpected since Larson and Fitzgerald [1964], Larson [1968], andLopez et al [1976] have shown similar results; and Volker [1951], Finn et al [1955] and Volker and Klapper [1954] demonstrated similar findings in hamsters. However, this study does suggest that the time span of maximum susceptibility is shorter than previously thought.…”

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confidence: 70%

Interaction of Microbial Challenge and Age at Inoculation in the Production of Dental Caries in Rats

1978

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Sprague-Dawley rats were subjected to a 56-day caries test regimen when they were infected with S. mutans strain 6715 or 10449 at 18, 19, 20, 21, 22, 23 or 24 days of age. Results indicate that there was a decrease in mean caries scores as the age of inoculation increases. Inoculation of animals beyond 22 days of age may not produce caries scores significantly greater than uninoculated animals, suggesting that the time span of maximum caries susceptibility is shorter than previously thought. The two strains of S. mutans produced similar levels of caries. The study suggests that while the strain of microorganism inoculated may account for some of the variability in animal caries studies, the age of inoculation appears to be more important.

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“…Others [Watson andMuhler, 1958, 1959;H aldi and Wynn, 1952;McClure, 1951;M itchell and Shafer, 1949], who have been unable to confirm this finding, attributed the earlier findings to the high caries susceptibility of newly erupted teeth or other factors. Sijaw and G riffiths [1963] failed to find more caries in animals fed natural sugar during early life, and Volker [1951] attributed the earlier caries occurring in hamsters with access to a sugar diet during weaning to a local effect of the sugar. Steinman and co-workers claimed that caries was increased in rats when sugar was fed or injected in rats during the period of molar formation.…”

mentioning

confidence: 99%

Effect on Rat Caries of Sugars Administered before Tooth Eruption

Brown¹,

Bibby²

1970

Caries Res

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Three intraperitoneal injections daily of 1 mg/gm body weight of 20% lactose, glucose-fructose and sucrose in saline, in rats from the 10th to 19th day did not give a definite effect on caries prevalence or extent after 35 post-weaning days on a nutritionally adequate cariogenic ration. There were no effects on weight gain before or after weaning, food consumption or femoral and mandibular weights.

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Some observations on dental caries in syrian hamsters

Cited by 18 publications

References 8 publications

Comparative Properties of Deciduous and Permanent (Young and Old) Human Enamel¹

Comparative Properties of Deciduous and Permanent (Young and Old) Human Enamel¹

Interaction of Microbial Challenge and Age at Inoculation in the Production of Dental Caries in Rats

Effect on Rat Caries of Sugars Administered before Tooth Eruption

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Some observations on dental caries in syrian hamsters

Cited by 18 publications

References 8 publications

Comparative Properties of Deciduous and Permanent (Young and Old) Human Enamel1

Comparative Properties of Deciduous and Permanent (Young and Old) Human Enamel1

Interaction of Microbial Challenge and Age at Inoculation in the Production of Dental Caries in Rats

Effect on Rat Caries of Sugars Administered before Tooth Eruption

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Product

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Comparative Properties of Deciduous and Permanent (Young and Old) Human Enamel¹

Comparative Properties of Deciduous and Permanent (Young and Old) Human Enamel¹