Biomedical subjects

J H G Poorterman

Publications and source records attributed to J H G Poorterman.

9 recordsLinked to original sources

PubMed2006

The oral health status of dentate patients with chronic renal failure undergoing dialysis therapy.

OBJECTIVE: The aim of this study was to compare the oral health status of chronic renal failure (CRF) patients on renal replacement therapy with a matched reference population. DESIGN: Cross-sectional study. SUBJECTS: Forty-two dentate CRF patients--aged 25-52 years old--were matched with a reference group of 808 dentate subjects. METHODS: The oral health was assessed using decayed missing filled (DMF) indices, simplified oral hygiene index and periodontal status. An oral health questionnaire was used to assess self-reported dental problems. Student t-tests and chi-square tests were performed to compare the CRF patients with the controls. RESULTS: All index-scores in the CRF patients were comparable with the controls except for number of teeth covered with calculus that was significantly higher (P < 0.05) in CRF patients (4.1 +/- 2.6) than in controls (3.0 +/- 2.9). The self-reported oral health questionnaire revealed a trend for increased temporomandibular complaints in CRF patients (16.7%vs 5.7% in controls; P = 0.06) as well as bad taste (31.0%vs 6.8% in controls, P = 0.08). CONCLUSIONS: For most dental aspects, the oral health of CRF patients is comparable with controls.

Adult↗

PubMed2006

[Trends in oral healthcare. Caries prevalence and frequency of visits to the dentist for checkups].

In 2003 the project 'Changes in oral health and preventive behaviour'was carried out for the sixth time in succession in The Netherlands. Children and adolescents were asked to fill out a questionnaire and to participate in an oral health examination. Compared to the 1996/1997 results 9-year-olds had a lower incidence of FS and DMFS, 14-year-olds had a higher incidence of DS, and 20-year-olds had a larger number of DS and a smaller number of FS, DMFS and DMFT in 2003. The care index in 2003 was between 48% and 68%. Compared to the 1996/1997 results more 21-year olds visited the dentist annually instead of twice a year. Considering possible consequences of the change in the Dutch health insurance system as of January 2006, such tendencies need careful monitoring.

Adolescent↗

PubMed2003

Approximal caries increment: a three-year longitudinal radiographic study.

AIM: To determine, for different age groups, the approximal caries increment in a three-year longitudinal retrospective study and to investigate the relationship between the caries increment and self-reported measures for oral health behaviour, dental knowledge and attitude (cynicism, health concern and motivation). SUBJECTS: 14, 17, 20 and 23-year-olds, who participated in a clinical epidemiological survey. Bitewings were taken of approximately 52% of the participants. Longitudinally, three cohorts were followed radiographically for three years. The self-reported measures were derived from questionnaires with sufficient reliability. RESULTS: For all participants, on average, 3.7 enamel lesions and 1.2 dentine lesions were found. The number of sound surfaces, adequate restorations and the D1FS score showed significant differences over a three-year period, for all age groups. Stepwise regression analysis showed that for the explanation of the change in number of sound surfaces, number of enamel lesions and D1S between the age of 17 and 20, the variable 'health concern' contributed significantly to the regression. The change in D3FS score was explained by the variable 'behaviour', while the change in D1Fs score was explained by both 'behaviour' and 'health concern'. Neither of the dental variables, 'dental knowledge' or 'motivation' contributed significantly. For the ages 14-17 and 20-23 no significant contributions were found. CONCLUSIONS: A considerable caries increment was found in this three-year retrospective radiographic study, which was not related to dental knowledge and motivation, and only for one age group (17-20) to oral health behaviour and health concern.

Adolescent↗

PubMed2002

Radiographic prevalence of approximal enamel lesions and relationship with dentine lesions and restorations in Dutch adolescents.

AIM: The aim of this study was to assess the prevalence of approximal enamel lesions from radiographs in groups of 14, 17, 20 and 23 years old, and to determine the relation with dentine lesions and restorations present. METHOD: Per age group, the bitewings of 120 persons were randomly selected and assessed for enamel lesions from the distal surface of the first premolar to the mesial surface of the second molar. A second examiner assessed 20% of the material for enamel lesions to determine the interexaminer agreement (Cohen's kappa = 0.63). RESULTS: An enamel lesion was found in 12-15% of the unfilled surfaces. The mean number of surfaces with enamel lesions was almost three per person. For all age groups it was found that about 20% of the persons had at least four enamel lesions and the number of enamel lesions was significantly correlated with the number of dentine lesions. Of all enamel lesions 20% were found in persons without any dentinal lesions or restorations. CONCLUSION: The bitewing radiographs showed a considerable number of enamel lesions for these age groups. This seems to justify its use on a routine base as a diagnostic tool at the age of 14-16 years.

Adolescent↗

PubMed2002

[Clinical underestimation of the prevalence of approximal dentin lesions and inadequate restorations].

The aim of this study was to determine the additional diagnostic value of bitewing radiographs compared to clinical examination, with respect to the presence of dentine lesions and inadequate restorations for different age groups. Subjects were 14-, 17-, 20-, 23-years-old, or were in the age groups of 25-34 and 35-54 years, who participated in 2 clinical epidemiological surveys. After obtaining informed consent, bitewing radiographs were made of approximately 25% of the participants (n = 663). The extra diagnostic yield of the bitewing radiographs varied between a factor 1.6 and 7.2 for approximal dentine caries diagnosis of untreated surfaces, and between 2.3 and 5.9 for inadequate restorations. In conclusion, a considerable increase in the numbers of approximal dentinal lesions and inadequate restorations for all age groups was found.

Adolescent↗

PubMed2002

[Dental care for young people insured by health insurance fund 1. Prevalence and treatment of dental caries between 1987 and 1999].

In 1987, 1993 and 1999 an epidemiological study was performed on oral health in youngsters, aged 5, 11, 17 or 23 years, in whom oral health care was covered by a health insurance fund. The prevalence of caries in the deciduous teeth of the 5-year-olds (examined without radiographs) did not change significantly between 1987 and 1999. Only a small proportion of dmfs was filled. Caries prevalence in permanent teeth of the 11-, 17- and 23-year olds decreased significantly. The number of filled surfaces decreased also. Between 1993 and 1999 the number of clinically found DS increased. However, this rise in dentinal caries lesions was not confirmed by similar findings in a simultaneous performed study with bitewing radiographs.

Adolescent↗

PubMed2002

[Oral health care in young people insured by a health insurance fund. 2. Prevalence and treatment of malocclusions in the Netherlands between 1987-1999].

In this paper data are presented about malposition of teeth in 5-, 11-, 17- and 23-year-olds in the time period between 1987-1999. Furthermore, results are shown of a longitudinal study in youngsters 11-17-years of age of whom some were and others were not treated orthodontically. Between 1987 and 1999, the percentage of youngsters who received orthodontic treatment increased from 23% to 40%. In the same time period the percentage of youngsters 17- and 23-year-olds with a malposition of teeth decreased. In youngsters involved in the longitudinal study and treated orthodontically, a strong improvement of the tooth position was found between the age of 11 and 17. Such an improvement did not appear in the non-treated group. The outcomes are considered as an indication that orthodontic treatments have positive effects on individual and on population level.

Adolescent↗

PubMed2002

[Oral health care in young people insured by a health insurance fund 3. Dental attendance and oral hygiene habits in the Netherlands between 1987 and 1999].

In 1987, 1993 and 1999 an epidemiological study on oral health was performed in youngsters aged 5, 11, 17 or 23 years, in whom oral health care was covered by a health insurance fund. To obtain data on dental attendance, oral hygiene habits and the use of fluoride tablets questionnaires were used; data on the prevalence of dental plaque and calculus was obtained by clinical observations. The percentage of 5-year-olds attending a dentist at least once a year decreased between 1987 and 1999. In 23-year-olds a shift was observed from an attending frequency of twice to once a year, probably as a result of a change of the regulations of the Health Insurance Funds in 1995. The questionnaire data show that frequency of tooth brushing of 5- and 11-year-old children increased between 1987 and 1999. However, this change did not result in a lower prevalence of dental plaque. In the 17- and 23-year-olds a significant decrease of the prevalence of calculus was found. The use of fluoride tablets by children 5 year of age declined between 1987 and 1999. As the Dutch Society for Oral Health Education, Ivoren Kruis (Ivory Cross), altered the recommendations on the use of these tablets, this change could be expected.

Adolescent↗

PubMed2002

[Differences in the assessment of restorative dental care].

Caries diagnosis and assessment of restorations show a considerable variation between examiners. It can therefore be questioned whether a professional standard is available on this topic. In this study the judgement of general dental practitioners of the quality of restorative care and the number of adequately and inadequately treated teeth was compared to the judgement of dentists working in teaching institutes. Thirty general dental practitioners and 7 university dentists assessed occlusal photographs and bitewing radiographs of 20 patients with respect to the presence of caries and the quality of restorations. The general dental practitioners gave lower scores on a traditional schoolmark scale than the university dentists, but the latter scored more homogeneous. The agreement (Cohen's kappa) between pairs of examiners was similar for GDPs and experts. The expert group tended to have a more conservative attitude towards the level of restorative treatment to be judged. A univocal professional standard with respect to caries diagnosis and restoration assessment seems difficult to establish.

Clinical Competence↗