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Biomedical subjects

C G Crossner

Publications and source records attributed to C G Crossner.

34 records · Page 2Linked to original sources
PubMed1983

Determination of dental age in adopted non-European children.

Adoption and immigration have brought about a considerable number of non-European children living in Sweden. Frequently the date of birth and age of the child are estimates of some uncertainty. In order to find out whether dental age could be useful in these cases a determination of dental age, according to methods described by Gustafson & Koch (1974) and by Liliequist & Lundberg (1971) was carried out in 44 non-European adoptive children, 23 with certain and 21 with uncertain date of birth. The results showed good agreement between the two methods and for children whose date of birth was certain, dental age determination was reliable, regardless of sex and race. For almost half of the children of uncertain age, however, dental age differed by a year or more. This may be seen as evidence of the difficulty in estimating the correct age in the native country and to asses the correctness of this estimate at the routine medical checks at present carried out upon arrival in Sweden. It can be concluded that in order to assign a reliable year of birth all adoptive or immigrant children whose age is at all uncertain should also be subjected to adequate odontological age determination.

Adolescent↗
PubMed1982

Reduction of caries in 8-year-old Swedish children between 1967 and 1979.

In this paper, the caries prevalence of groups of 8-year-old children in Umeå, Sweden, examined in 1967, 1971, 1975 and 1979 is described. A reduction of caries of 45% in the permanent teeth and 54% in the primary teeth is shown between 1967 and 1979. During the same period there has been a gradual extension of dental care for children and adolescents, and there has been an increasing emphasis on preventive dentistry. The reduction in caries does not, however, continue at the same rapid rate. Further preventive efforts therefore ought to be focused on those individuals with the highest caries indices.

Child↗
PubMed1981

Salivary lactobacillus counts in the prediction of caries activity.

The aim of the study was to investigate the reliability and clinical value for prediction of caries activity of determining the number of lactobacilli in saliva, the salivary secretion rate and the presence of yeasts in the saliva. For this purpose one entire age group of pupils (115 14-year-olds) attending one of the compulsory 9-year comprehensive schools in Orebro was selected for longitudinal examination. Over a period of 64 weeks three clinical recordings were made and seven salivary samples were collected. The correlations between caries activity, caries frequency (DFS), lactobacillus counts, yeasts in saliva, salivary secretion rate and gingivitis were examined. The results showed that in spite of a well-organized dental health service, including adequate preventive measures, a pronounced variation in caries activity remained and thus a means of predicting the onset of caries would be a valuable asset. Statistically significant correlations were found between caries activity on the one hand and caries frequency and lactobacillus counts on the other. The lactobacillus count was found to be a suitable measure in predicting caries activity. It was concluded that the lactobacillus count should be used for caries prediction in healthy, properly treated patients. It is important that there are no areas of microbial retention on the teeth such as open carious lesions, poorly executed restorations, dentures or orthodontic bands. In such situations, the lactobacillus count seems to reflect the frequency of ingested fermentable carbohydrates and thus, indirectly, the risk of initiating carious lesions.

Adolescent↗
PubMed1977

Saliva tests in the prognosis of caries in children.

The purpose of the investigation was to find out whether the negative correlations between caries indices and the flow rate, pH and buffer effect of saliva that could be demonstrated in groups of 8- and 5-year-old children, were close enough to allow prediction of the development of caries in a given child. The results showed that the range of variation of the results of all analyses were very wide. This makes the use of saliva tests alone in the prognosis of caries development of less value in the individual child.

Age Factors↗
PubMed1975

An epidemiological study of child health and nutrition in a northern Swedish county. VII. A comparative study of general and dental health, food habits and socio-economic conditions in 4-year-old children.

A study of the general and dental health and the food habits of randomly selected 4-year-old Swedish urban children was performed. The results were compared with the findings of an investigation carried out four years earlier in the same area. In comparison with the earlier study no significant differences were found in haemoglobin values, packed red cell volume, microsedimentation rate and anthropometric measurements. The food habits had altered. A reduction in the frequency of between-meal consumption, particularly of sweets and soft drinks, as well as a reduction of the frequency of meat, fish and egg consumption was found. The children had an increased sandwich and milk consumption. The caries frequency was markedly reduced, which might be explained by the decreased between-meal consumption and an increased consumption of fluoride tablets. The food habits and the caries situation were generally influenced by the parents' socio-economic conditions, especially their educational level.

Anthropometry↗
PubMed1975

A descriptive and comparative study of oral health in 8-year-old Swedish children.

The aim of the study was to assess the oral health of a group of children, and to compare the findings with the results from an investigation performed 4 years earlier in children of the same age and living in the same area. The material consisted of 149 randomly selected 8-year-old children. The study included examination of caries and the state of the gingival conditions, enamel hypoplasia and opacities, supragingival calculus and extrinsic stains. Determinations were also made of the rate of secretion, pH and buffer effect of stimulated saliva. Socio-economic data and anamnestic dental data were noted. The investigation showed a decrease in caries frequency in the primary teeth, but not in the permanent teeth, during the four-year-period. As in the former investigation, regression analyses showed a negative correlation between the level of education of the parents and caries indices, and that the variation of the gingival indices could be explained by socio-economic factors. In addition, a negative correlation was found between the caries index for primary teeth and the rate of secretion of the saliva and the presence of supragingival calculus.

Child↗
PubMedDate not supplied

Caries prevalence after submandibular duct retroposition in drooling children with neurological disorders.

This study is a long-term follow up of 17 patients surgically treated for uncontrolled drooling, by retroposition of the ducts from the submandibular glands. Mean age was 16.8 years (range 7-31), with an average postoperation time of 9.2 years (range 1-18). Clinically, no subject revealed an impression of an extremely dry mouth, but most patients showed obvious permanent decrease in drooling after the surgical treatment. They had a highly significant increase in caries prevalence of the mandibular incisal and canine area, and this caries prevalence was related to the severity of cerebral palsy.

Adolescent↗