Biomedical subjects

H Kalsbeek

Publications and source records attributed to H Kalsbeek.

At least 37 records · Page 2Linked to original sources

PubMed1998

Trends in caries prevalence in Dutch adults between 1983 and 1995.

In 1995, a dental survey was performed among adults aged 25-54 in the Dutch city of 's-Hertogenbosch. A similar study was performed in the same city in 1983 and the aim of the present study was to describe trends in oral health from 1983 to 1995. National data show that the percentage of edentulous persons aged 30-39 and 40-49 decreased from 11.3 to 3.3 and from 28.5 to 13.8, respectively, between 1984 and 1993/94. The same trend was found in 's-Hertogenbosch. In persons with natural dentition under the age of 35 the mean number of DMFT decreased significantly between 1983 and 1995. In 1995 the mean number of FT was higher, and the mean numbers of DT and MT were lower than in 1983 in all age categories. It can be concluded that oral health in Dutch adults, as measured by caries prevalence, treatment level of caries and percentage of edentulous persons, improved significantly between 1983 and 1995.

Adult↗

PubMed1998

[Dental caries, dental fluorosis and use of fluoride tablets. Results of survey by 8, 14, and 20 year old insurance patients].

OBJECTIVE: To assess the prevalence of fluorosis at the age of 8, 14 and 20 years; to evaluate the prevalence of caries and fluorosis at the age of 8 and 14 years in relation tot the use of fluoride tablets during the first 5 years of age. DESIGN: Retrospective study. SETTING: The investigation was carried out in four cities in the Netherlands. METHODS: Caries and fluorosis data were obtained in 8-, 14- and 20-year-old persons by clinical examination. For 8- and 14-year-olds results were compared with data about the use of fluoride tablets during the first 5 years of life. These data were obtained by questionnaires completed by the parents when the child was 5 years old. RESULTS: Prevalence of fluorosis in permanent teeth of 8-, 14 and 20-year-olds was 16%, 31% and 26% respectively. Univariate analysis revealed a statistically significant relation between the frequency of the use of fluoride tablet and caries prevalence in deciduous and permanent teeth on the age of 8. Prevalence of fluorosis and fluoride tablet use did not show such a relation. These findings were confirmed by logistic regression analysis, using frequency of tooth brushing on the age of 5 as possible confounding factor. CONCLUSION: In this group of children the use of fluoride tablets during the first 5 years of life does not seem to increase the prevalence of fluorosis.

Administration, Oral↗

PubMed1998

[Oral health and gender].

Recently performed epidemiological studies in the Netherlands did not show statistical significant differences between boys and girls or men and women with regard to the prevalence of caries, periodontal diseases and toothlessness. In adults it was found that the mean number of untreated caries lesions was smaller in women than in men, possibly as a result of the lower percentage of women not attending a dentist regularly. Furthermore, the prevalence of plaque and calculus was lower among women, probably as a result of better oral hygiene habits.

Adolescent↗

PubMed1998

Dental prevention among Turkish and Moroccan parents in The Hague.

OBJECTIVE: The aim of this study was to determine the extent to which dental prevention among Turkish parents differs from that among Moroccan parents in one of the large cities in the Netherlands. DESIGN: Turkish and Moroccan mothers with a child of approximately six months old, who visited the well baby clinics in the Schilderswijk area of The Hague, were asked to participate in a dental care project. As part of the initial data collection in this project, 170 Turkish and 153 Moroccan mothers were interviewed at home by a woman who spoke their native languages. The interview contained questions about dental prevention, such as fluoride use, feeding bottle use, visits to the dentist, brushing, information about oral care, and about relevant background characteristics. RESULTS: More Moroccan than Turkish mother reported that they did not use a feeding bottle for the baby, went to the dentist twice a year, brushed their own teeth at least twice a day and started to brush their children's teeth at an early age. The Moroccan mothers were more committed to dental prevention than Turkish mothers, even after correction for background characteristics such as education, language skills and the number of years spent in the Netherlands. CONCLUSIONS: Ethnic groups should not be seen as a single group for dental prevention. It is recommended that Turkish parents in particular be encouraged to go to the dentist twice a year, to start brushing their children's teeth at an early age and to wean their children off use of a feeding bottle in bed.

Adult↗

PubMed1997

[Changes in oral health in adults. Results of studies performed in 1983 and 1995].

In 1995 a dental survey among adults aged 25-54 years was performed in 's-Hertogenbosch (The Netherlands). Aim was to study trends in oral health after 1983, a year in which a similar study was performed in the same city. Caries data were obtained by clinical examination only. The percentage of edentulous persons in the sample decreased with about 50% between 1983 and 1995. In 1995 in all age categories of dentate persons, the mean number of FT was higher, and the mean numbers of DT and MT were lower than in 1983. In persons with a natural dentition under the age of 35 the mean number of DMFT decreased significantly. It was concluded that oral health in adults living in 's-Hertogenbosch, as measured by caries prevalence, treatment level of caries and percentage of edentulous persons, improved significantly between 1983 and 1995. It is supposed that the trends found in 's-Hertogenbosch are indicative of changes in oral health in The Netherlands.

Adult↗

PubMed1996

Changes in caries prevalence in children and young adults of Dutch and Turkish or Moroccan origin in The Netherlands between 1987 and 1993.

In 1987, an epidemiological study was started with the aim to evaluate the development of dental health in young people insured by "Health Insurance Funds'. In The Netherlands, insurance by such funds is compulsory for individuals earning less than some income criterion (in 1995 59,000 Dutch florins) and their families, together approximately 60% of the Dutch population. Dental health care is included in the insurance. Caries data were obtained in subjects aged 5-23 years in 1987, 1990 and 1993. Mean DMFS scores of groups aged 11, 17 or 23 years in 1993 were about 40% lower than in 1987. No significant differences in mean number of dmfs of 5-year-olds in 1987 and 1993 could be observed. A breakdown by country of birth of the mother showed that the difference between indigenous Dutch juveniles and juveniles of Turkish or Moroccan origin depended on year of birth. Caries prevalence of Turkish or Moroccan children born in 1982 or later was higher than that of Dutch children of equal age; no significant difference in DMFS could be demonstrated between ethnic categories in juveniles born in 1976. In cohorts born before 1976, DMFS scores of Turkish/Moroccan juveniles were much lower than those of Dutch juveniles. It is suggested that these opposite trends were caused by the fact that subjects in the youngest cohorts had been born in The Netherlands, while the oldest cohorts spent the first years of their life in those parts of Turkey or Morocco where caries prevalence of children is low. Between 1987 and 1993 caries prevalence in 5-year-old children of Turkish or Moroccan origin decreased significantly.

Adolescent↗

PubMed1995

[Relationship between nutrition and dental caries in a scientific perspective].

The consumption of sugars is supposed to be one of the main etiological factors of dental caries. However, in epidemiological studies only a faint relationship is found between nutrition and caries. One reason is the preventive effect of fluoride in modern industrialized countries. In this article attention is paid to factors which can modify the harmful effect of sugars in foods and allied products: the composition and consistency of the product, the way the product is consumed, environmental factors in the mouth such as composition of saliva and plaque, and local availability of fluoride. Results are presented of an epidemiological study into the relationship between consumption of sweet snacks and caries experience of primary school children.

Cariostatic Agents↗

PubMed1994

Consumption of sweet snacks and caries experience of primary school children.

With the aim of evaluating the relationship between consumption of sweet snacks (sugars) and caries prevalence, a secondary analysis was performed on data obtained in an epidemiological study of 5-, 8- and 11-year-old children, all participants of Regional Institutions for Youth Dentistry. The children's primary and permanent teeth were examined mainly by visual examination. Parents completed a questionnaire on the child's toothbrushing habits, use of fluoride tablets and fluoride toothpaste, consumption of sweet snacks, level of education of the mother as an indicator of the socio-economic status of the family and country of birth of the mother as an indicator of ethnicity. The various oral hygiene habits were combined into one variable. Firstly the crude relationship between consumption of sweet snacks and caries experience was evaluated, subsequently oral hygiene habits, socio-economic status and ethnicity were taken into account. Mean dmfs scores of 5- and 8-year-old children who consumed sweet snacks between meals more than 5 times a day (according to parents' reports) were significantly higher than mean dmfs scores of children with a lower reported sweet snack consumption. Multivariate analysis confirmed this result. Only 4.2% of the children were in the group with such a high sweet snack consumption. A number of parents probably underestimated the sweet snack consumption of their children. As the validity of the data on sweet snack consumption was questionable, the actual influence of this factor might be larger than the results of this study show.

Child↗

PubMed1994

[The electric toothbrush. Present situation].

During the last decade several electric toothbrushes have been introduced with an innovative brushing technique. Scientific research indicates that after proper oral hygiene instruction these toothbrushes can be more effective than a manual toothbrush. This increased efficacy is mainly caused by an improved plaque removal from the proximal surfaces. Besides effectiveness, reasons such as facility and boosting of motivation can be reasons to advise the use of an electric toothbrush. However, these secondary arguments have sofar not been supported by scientific data.

Dental Plaque↗

PubMed1994

[Nutrition education and oral health].

At present, reduction of the consumption of fat is the main issue in nutritional education. However, this can lead to an increased consumption of mono- and disaccharides and, as a result, to increased dental caries. Individual variations in the susceptibility of caries make it necessary to differentiate the advice for the consumption of snacks between meals. Generally, consumption of complex carbohydrates, such as bread or bread products, can be advised as an alternative for fat and sugar containing snacks. Sugar-free products can also be advised, but not unlimited because of the laxative effect of sorbitol. To prevent tooth erosion the frequent consumption of fruits and fruit juices should be discouraged.

Dental Caries↗

PubMed1994

[Efficient preventive dentistry. Concluding article].

In this concluding article by the Dutch Advisory Council on Prevention of Oral Diseases, the relative importance of various aspects of prevention is sorted out. A guideline is presented to dentists, dental hygienists and oral health educators, regarding the contents of an efficient and comprehensive package of basic preventive measures. Subsequently, supplementary measures of prevention are discussed, which should be considered for certain age categories and high-risk groups. Top priority is attributed to regular mechanical cleansing of the dentition, combined with daily administering of fluoride.

Fluorides↗

PubMed1994

[Results of youth dentistry. Oral health and oral hygiene habits of children participating in regional institutions].

In order to evaluate the results of Regional Institutions (RI's) for Youth Dentistry, an epidemiological study was performed on caries experience and oral hygiene habits of 5-, 8- and 11-year-olds, getting dental treatment in these institutions. In the big cities participants of the RI's appeared to be mostly from the lower social levels of society and ethnic minority groups. Caries experience and oral hygiene habits of these children were relatively unfavourable. A significant statistical correlation exists between oral hygiene habits and caries experience. Differences between the results of the RI's with respect to the oral health and the oral hygiene habits of the participants can be explained to a large extent by the mentioned social and ethnic differences.

Attitude to Health↗

PubMed1994

[Special dentistry assistance. An evaluation of the revised ruling 1990].

Public Health insurance provision of dental care for patients with a physical, mental, dental or medical handicap has been reorganized in 1990. In order to evaluate this reorganization, general dental practitioners, dentists in hospital clinics or institutions for the handicapped as well as dentists employed as advisors to local health insurance authorities were interviewed. Results show that, until now, the reorganization has not resulted in an increase of seeking dental care by handicapped patients at the general dental practitioner's. The reorganization seems to have taken place in too much haste, thus not leading to the desired provision of dental care for handicapped patients.

Dental Care for Persons with Disabilities↗

PubMed1994

Correlates of toothbrushing in preschool children by their parents in four ethnic groups in The Netherlands.

A previous study among Amsterdam 5-year-old children showed that on average, the older the child at the onset of toothbrushing and the less frequent the toothbrushing, the more life time caries experience it had. The aim of the present study was to assess correlates of these two caries risk factors, in four ethnic groups. A further aim was to evaluate the putative role of correlates as intervening variables between ethnicity and caries risk factors. Questionnaire data were available from the Amsterdam study, in which a stratified sample of 103 Turkish, 258 Moroccan, 59 Dutch and 56 Surinamese parents were interviewed at home in their mother tongue. Results showed 69 per cent of the Turkish, 45 per cent of the Moroccan, 17 per cent of the Dutch and 11 per cent of the Surinamese parents had commenced brushing their child's teeth only after its second birthday or even never at all. Moreover, many parents had not brushed their child's teeth every day. Almost all potential correlates in six domains, namely parental habits, attitudes, evaluative beliefs, behavioural beliefs, perceived role of the child and that of the partner, were found to be related crudely to the risk factors. Large differences in score patterns on the correlates were observed between ethnic groups. Multiple logistic regression analyses showed substantial parts of the differences in risk factor scores between the Turkish group and a combined Dutch and Surinamese reference group could be attributed to the intervening role of the correlates, as could only minor parts of the difference in risk factor scores between the Moroccan group and the reference group.(ABSTRACT TRUNCATED AT 250 WORDS)

Chi-Square Distribution↗

PubMed1993

Developments in radiographic caries diagnosis.

The developments that have been taking place in radiographic caries diagnosis, within the context of the changes occurring in both the disease process and the available technology, are reviewed. The decline in caries prevalence seen in many western countries has been accompanied by changes in the pattern and behaviour of lesions. More lesions are now seen on occlusal surfaces, more are concealed (and thus imperceptible to conventional diagnostic techniques), while the average progression rates for approximal lesions have also slowed. Systems employed for caries diagnosis must take account of these changes and the varying needs of users employing different diagnostic thresholds. This paper reviews and discusses developments in: conventional film radiography; xeroradiography; indirect digital imaging (with computer image analysis and subtraction radiography), and direct digital imaging. It is concluded that: for the detection in high caries prevalence groups of both approximal caries (especially small lesions in enamel) and dentinal occlusal lesions in teeth with little or no surface breakdown, radiography is still a significant and reasonably accurate diagnostic method; and that, in spite of the more limited resolution, digital imaging methods seem to perform as well or better than conventional film radiography. Digital systems possess a number of advantages, primarily the possibility for image enhancement and significant dose reduction. It may be predicted that digital imaging techniques will enter the clinical routine in the near future.

Dental Caries↗

PubMed1993

Ethnicity and maternal education as risk indicators for dental caries, and the role of dental behavior.

The aim of this study was to assess differences in dental health between socioeconomic and ethnic groups in a cohort of 5-yr-old children born in 1982 and in a cohort of 11-yr-old children born in 1976. A further aim was to evaluate the putative role of dental behaviors as intervening factors between ethnicity and maternal education on the one hand and caries experience on the other. A secondary analysis was performed on data collected in a study monitoring the oral health of youths covered by public health insurance (Ziekenfonds) in the Netherlands. The results showed both ethnicity and maternal education to be indicators of caries risk in the primary dentition. For caries in the permanent dentition, only maternal education could be identified as a risk indicator. Dental behaviors were related to caries experience as well as to ethnicity and maternal education, though the evidence for the role of these dental behaviors as intervening factors was weak. It is concluded that the validity and reliability of the behavioral measurements might be questionable and that the mechanism underlying the differences in caries experience between the various groups is still little understood.

Analysis of Variance↗

PubMed1993

Secular trends of caries prevalence in 6- and 12-year-old Dutch children.

Recently two papers have been published dealing with possible changes in the downward trend of caries experience among Dutch schoolchildren in the late 1980s. To answer the question if the decline of caries has come to an end, a meta-analysis was carried out on epidemiological data collected in 5-6 and 11-12-yr-old children between 1980 and 1990. From results of the present analysis it appears that after 1983 a halt in the decline of caries prevalence among 6-yr-olds occurred, whereas among 12-yr-olds, the earlier decrease in mean DMFS scores continued in the period 1980-89.

Child↗

PubMed1993

Caries experience of 15-year-old children in The Netherlands after discontinuation of water fluoridation.

In 1973 the fluoridation of drinking water in the Dutch town of Tiel was discontinued. In order to monitor the effect of this measure, the caries experience in 15-year-old children was investigated annually from 1979 to 1988, both in Tiel and in Culemborg. In the latter town the drinking water had never been fluoridated. The caries data of 15-year-old children examined between 1968 and 1969 in Tiel (children having used fluoridated water from birth) and Culemborg were used as historical controls. In Tiel the mean number of DMFS increased between 1968/69 and 1979/80 from 10.8 to 12.7 (+18%) and decreased to 9.6 (-26%) in the following years; in 1987/88 the mean DMFS was 11% lower than in 1968/69. In Culemborg the mean DMFS score decreased between 1968/69 and 1987/88 from 27.7 to 7.7 (-72%). In 1968/69 the mean DMFS score in Tiel was 61% lower and in 1987/88 17% higher than in Culemborg. The question as to whether water fluoridation would have had an additional effect if it had been continued (presuming the application of existing preventive measures) cannot be answered, as there are no remaining communities with fluoridated water in The Netherlands.

Adolescent↗