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  • 1
    Electronic Resource
    Electronic Resource
    Patterns of tooth vulnerability to caries in South African high school pupils (1980)
    Oxford, UK : Blackwell Publishing Ltd
    Community dentistry and oral epidemiology 8 (1980), S. 0 
    Details
    ISSN: 1600-0528
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Caries prevalence and distributions were studied in 761 South African high school pupils aged 17 years in four ethnic groups, living in urban (low F) and rural (low and high F) areas. Mean DMFT values were significantly higher among White pupils than all other groups. Comparison of mean DMFT among the Black pupils showed that urban Black dwellers had a significantly higher score than rural pupils when caries-free individuals were included in the analysis, but not when scores for only those with a DMFT of 1 or more were compared. No significant differences were found between the DMFT values of Black rural pupils living in high or low fluoride areas. Among Black rural pupils, dental caries was approximately three times more common in permanent second molars compared with permanent first molars. In urbanized Black, Coloured, Indian and White subjects, the molars were approximately equally affected.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1600-0528.1980.tb01287.x
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  • 2
    Electronic Resource
    Electronic Resource
    Primary dentition caries trends, 1976–1981, in four South African populations (1983)
    Oxford, UK : Blackwell Publishing Ltd
    Community dentistry and oral epidemiology 11 (1983), S. 0 
    Details
    ISSN: 1600-0528
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Abstract— This paper is a comparison of cross-sectional data on dental caries in the primary dentition undertaken between 1976 and 1981 in the Transvaal Province, South Africa, on 690 rural Black, 1463 urban Black, 870 Indian and 1622 White children aged 2–5 yr. There was a decrease in percentage dental caries prevalence in the urban White children and an increase in the other three groups, the fastest rate being seen among urban Indian children. Similar trends were noted for mean dmft. Dental caries in incisor and canine teeth remained fairly static but caries in molar teeth increased in the groups of Black and Indian children and decreased in the White children. Ratios d/dmft, m/dmft and f/dmft indicated that minimal treatment was received by all the children.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1600-0528.1983.tb01900.x
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Dental caries, gingival health and malocclusion in 12-year-old urban Black schoolchildren from Soweto, Johannesburg (1981)
    Oxford, UK : Blackwell Publishing Ltd
    Community dentistry and oral epidemiology 9 (1981), S. 0 
    Details
    ISSN: 1600-0528
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Abstract The oral health of 402 12-year-old Black schoolchildren was studied. Dental caries was seen in 65.6%, but 58.2% had a DMFT of less than 6, while the mean DMFT was 2.3. Few teeth were missing or filled, the majority being decayed. No significant association was found between DMFT and sex, ethnic group or father's occupation. Periodontal disease was seen in 40.3% and malocclusions were rare, being present in only 11.1%.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1600-0528.1981.tb01035.x
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  • 4
    Electronic Resource
    Electronic Resource
    Dental caries in rural and urban black preschoolchildren (1978)
    Oxford, UK : Blackwell Publishing Ltd
    Community dentistry and oral epidemiology 6 (1978), S. 0 
    Details
    ISSN: 1600-0528
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: abstract The dentitions of 439 rural and 192 urban black children aged 1–5 years were examined with mirror and probe. Denial caries was common and the percentage prevalence and dmft values were similar in children of 1–3 years in both groups. At 4 years of age there was a twofold increase in dental caries in the urban children to reach a dm ft score significantly greater than that in the rural children (P〈0.01). Labial caries was common in rural children but rare in urban children while rampant caries (dmft ≥5) exhibited the opposite pattern.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1600-0528.1978.tb01137.x
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  • 5
    Electronic Resource
    Electronic Resource
    A reply (1984)
    Oxford, UK : Blackwell Publishing Ltd
    Anaesthesia 39 (1984), S. 0 
    Details
    ISSN: 1365-2044
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2044.1984.tb06549.x
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  • 6
    Electronic Resource
    Electronic Resource
    Nitrous oxide sedation in dentistry (1984)
    Oxford, UK : Blackwell Publishing Ltd
    Anaesthesia 39 (1984), S. 0 
    Details
    ISSN: 1365-2044
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Nitrous oxide concentrations (V/V) at the delivery Rotameters block, nasal mask, pharynx and venous blood, were compared. There was a dilution of approximately 50% of the delivered nitrous oxide at the nasal mask which was further reduced in the pharynx. Venous blood concentrations 10 minutes after inhalation of nitrous oxide were low but as would be calculated from pharyngeal concentrations. After 5 minutes of oxygenation venous blood nitrous oxide concentrations were still relatively high. A total of 92% of subjects experienced a satisfactory effect with 30% nitrous oxide or less in the pharynx.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2044.1984.tb07233.x
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  • 7
    Electronic Resource
    Electronic Resource
    Effects of intermittent 0.5% nitrous oxide/air (v/v) on the fertility of male rats and the post-natal growth of their offspring (1983)
    Oxford, UK : Blackwell Publishing Ltd
    Anaesthesia 38 (1983), S. 0 
    Details
    ISSN: 1365-2044
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: In a study of male rat fertility male Wistar albino rats were exposed to 0.5% nitrous oxide/air mixtures (v/v) for 30 days and control rats were exposed to oil-free air for the same time period. Thereafter each male was mated with three nulliparous female rats and mated again with three more nulliparous rats after a 6-month recovery period. The offspring were weighed and measured for 8 weeks postnatally. There was a significant reduction in mean litter size of the female rats mated with the male rats directly after the nitrous oxide exposure period. The offspring from the female rats mated with the males directly after the exposure period were significantly smaller in size than the control group. These results show a reversible reduction in male Wistar rat fertility, after exposure to 0.5% nitrous oxide in air (v/v), as well as a postnatal growth depression.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2044.1983.tb10452.x
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  • 8
    Electronic Resource
    Electronic Resource
    Clinical effects of nitrous oxide and oxygen mixtures at sea-level and at 1700 metres altitude (1979)
    Oxford, UK : Blackwell Publishing Ltd
    Anaesthesia 34 (1979), S. 0 
    Details
    ISSN: 1365-2044
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2044.1979.tb08535.x
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  • 9
    Electronic Resource
    Electronic Resource
    A histological and quantitative histomorphometric study of apexification of nonvital permanent incisors of vervet monkeys after repeated root filling with a calcium hydroxide paste (1997)
    Oxford, UK : Blackwell Publishing Ltd
    Dental traumatology 13 (1997), S. 0 
    Details
    ISSN: 1600-0595
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Abstract The purpose of this study was to compare the died of a monthly refilling of the root canals with calcium hydroxide paste with a single packing or replacement of the paste at 3 months on I he apexification of nonvital maxillary incisors of vervet monkeys. Forty-eight maxillary incisors from 12 monkeys were used following radiographic determination that root development was incomplete. The pulps were extirpated under general anesthesia and the root canals filed and cleaned. The root canals were filled with a commercial calcium hydroxide paste, Calxyl, and a temporary cavity filling placed. Twelve teeth were left without further treatment. The calcium hydroxide paste was replaced in 12 teeth alter a 3-month interval, and in the remaining 24 teeth the calcium hydroxide root filling was replaced live times at monthly intervals. The monkeys were killed after 6 months, and blocks of the teeth and surrounding tissues were embedded, decalcified and 6 μm serial sections prepared and stained. The sections were studied histologically to evaluate 11 parameters. Significant differences were found in the amount of calcium hydroxide at the apices, the presence of new cementum on the roots and the degree of inflammation, all of which were better in the monthly refill group. Histomorphometric measurements to evaluate the obturation of the open apices and the volume of new primary osteocementum showed no significant difference between the three groups. It was suggested that after the initial root filling with calcium hydroxide there was nothing to be gained by repeated root filling either monthly or after 3 months, for al least 6 months.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1600-9657.1997.tb00042.x
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  • 10
    Electronic Resource
    Electronic Resource
    Dental caries and dental treatment in the primary dentition in an industrialized South African community (1985)
    Oxford, UK : Blackwell Publishing Ltd
    Community dentistry and oral epidemiology 13 (1985), S. 0 
    Details
    ISSN: 1600-0528
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Abstract This paper reports an examination of dental caries in the primary dentition of 2–5-yr-oId white children in an industrialized South African city, in 1981 and 1983. There was a decrease in dental caries prevalence over the 2-yr period accompanied by an increase in dental treatment in 3–5-yr-olds. Treatment, however, remains low. Socioeconomic status had a varying effect on the trends, but in general there was a greater reduction in dental caries in the lower socioeconomic areas.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1600-0528.1985.tb00437.x
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