摘要:

Quantitative determination of monosaccharides, disaccharides and sorbitol by use of gas-liquid chromatography (GLC) was performed on thirty-three samples of different commercial soft bread. Maltose was found in all the bread samples. Fructose and glucose were found only in samples of sweetened bread. Sucrose was detected in 5 samples, lactose in 2, and sorbitol in 2. Up to 20 per cent of the fresh bread weight was found to be low-molecular weight carbohydrates. Plaque pH-changes were studied in 18 persons following a 30-second mouth rinse with each of 3 solutions: (1) 50 % sucrose, (2) water extract of sweetened bread, and (3) water extract of unsweetened bread. Mouth rinsing with the extract of sweetened wheat bread (sucrose 7.7 per cent of the dough weight) caused pH-decreases in plaque which were significantly more pronounced than those induced by the water extract of unsweetened wheat bread.

ISSN:0001-6357    

DOI:10.3109/00016357509026345

出版商:Taylor&Francis    

年代:1975

数据来源: Taylor

摘要:

The construction of a model of the calcium orthophosphate solubilities has been described in detail. The model gives a true and easily comprehensible visualization of the complex interrelationships existing in phosphate systems. Examples of its application have been given as regards the stability fields, the biologic metastability, the congruent solubility, and the kinetics of dissolution and precipitation processes. As an instrument of assessing the solubilities in practical work, the usefulness of the model is further increased by including diagrammatic representations of the solubilities of Fap, CaF2and CaCO3. The model virtually covers the whole field usually encountered in solubility studies. It is based upon an ionic strength of 0.05, and any complexation, ionic interaction, or specific ionic effects have been disregarded It is possible, however, to make the model to any scale and to construct it with a view to any purpose required.

ISSN:0001-6357    

DOI:10.3109/00016357509026346

出版商:Taylor&Francis    

年代:1975

数据来源: Taylor

摘要:

An x-ray cephalometric study was performed in a male and a female group of Danish dental students with the object of examining the sex-determined component of the cranial morphology, and of obtaining a control material for subsequent studies of pathologic samples. The cranial morphology was examined on the basis of measurements on x-ray cephalometric lateral and postero-anterior radiographs. The cranium was, on an average, smaller in the female than the male group except as regards the nasal bone, the foramen magnum and the inner orbital distance. The female group showed a more prominent frontal bone, and a less prominent nasal bone, than the male group.

ISSN:0001-6357    

DOI:10.3109/00016357509026347

出版商:Taylor&Francis    

年代:1975

数据来源: Taylor

摘要:

The occurrence of neonatal lines (NL) in all cusps of the first permanent molar (M 1) has been investigated in complete series of M 1 from 16 males and 11 females. Previous investigations of newborn children gave reason to expect a lower frequency of occurrence in males. The present investigation showed that about one half of the males did not have NL in any of their four M l's, while all females had NL in at least one tooth. This would seem to indicate that on the average boys are less dentally mature at the time of birth than girls. At the same time, it opens up the possibility of a forensic sex assessment. When skeletal remains of children and young persons are in concern.

ISSN:0001-6357    

DOI:10.3109/00016357509026348

出版商:Taylor&Francis    

年代:1975

数据来源: Taylor

摘要:

Deciduous teeth of Finnish children born in 1958-1967 were analysed for strontium-90 by means ofčCerenkov radiation. The strontium–90 content was about 9 pCi/gCa in children born in 1963-1964; the values decreased strongly in the subsequent cohorts of children. The strontium–90 content of the deciduous teeth varied in perfect unison with that of COW'S milk (r = +0.99). The results confirm that deciduous teeth provide a practical and accurate indicator of the total body burden of bone–seeking environmental pollutants.

ISSN:0001-6357    

DOI:10.3109/00016357509026349

出版商:Taylor&Francis    

年代:1975

数据来源: Taylor

摘要:

Five patients with denture stomatitis were initially treated for 14 days with a combination of amphotericin B lozenges and denture soaking in 0.2 % chlorhexidine. To prevent recurrence the dentures were then kept overnight in 0.2 % chlorhexidine during five months. No relapse occurred, but the dentures (all–acrylic) became heavily discoloured by chlorhexidine. During this period fungi could not be grown either on palatal or on maxillar denture agar models, and clinical signs and symptoms were reduced further. At the end of treatment hypochlorite was used to remove chlorhexidine-induced denture stain. Brushing and soaking (0.16 %) proved more efficient than brushing alone, and when a 0.60 % solution was used, the stains were generally eliminated in two hours. Hypochlorites in the prevention and removal of chlorhexidine discolourations deserve further attention.

ISSN:0001-6357    

DOI:10.3109/00016357509026350

出版商:Taylor&Francis    

年代:1975

数据来源: Taylor

摘要:

A possible connection has been suggested between strontium and a low prevalence of dental caries. An investigation of this subject was initiated by measuring the strontium content of deciduous teeth by atomic absorption spectrophotometry in different regions in Finland. The material analysed consisted of a total of 2,482 tooth crowns and 392 tooth roots. The results showed that the Sr content of the tooth crowns in northern Finland was about two–fold that in the south, about 400 and 200µg/gCa, respectively. The difference was apparently caused by corresponding differences in dietary strontium. The tooth roots contained much more Sr than the crowns, about 600 and 200µg/gCa, respectively, in southern Finland, presumably owing to changes occurring in the dietary habits of the child during the development of the crowns and roots of the deciduous teeth.

ISSN:0001-6357    

DOI:10.3109/00016357509026351

出版商:Taylor&Francis    

年代:1975

数据来源: Taylor