Biomedical subjects

J Hoogstraten

Publications and source records attributed to J Hoogstraten.

At least 19 recordsLinked to original sources

PubMed1995

A study on the convergent and discriminant validity of the Dental Anxiety Inventory.

A correlational design was used to assess the convergent and discriminant validity of the Dental Anxiety Inventory (DAI), a newly developed measurement instrument designed to circumvent shortcomings of other dental anxiety questionnaires. Convergent validity was supported by a high correlation between the DAI and Corah's Dental Anxiety Scale. Discriminant validity was supported by small positive correlations with scales for neuroticism, anxiety, and fear, and nonsignificant correlations with other variables such as extroversion. The results support the construct validity of the DAI.

Adult↗

PubMed1992

Development of a Dutch version of the Dental Visit Satisfaction Scale.

A Dutch version of the Dental Visit Satisfaction Scale has been developed. The DVSS consists of 10 items, measuring three aspects of patient satisfaction with the dentist. Item and scale characteristics of the Dutch version and the English version compared rather well. Likewise, the factor structure of the Dutch and the English version of the DVSS was very similar. A suggestion for modification of the DVSS was made.

Adult↗

PubMed1992

Symptom reporting in temporomandibular joint clicking: some theoretical considerations.

Analysis of research on psychological aspects of temporomandibular disorders suggests that self-reports of symptoms do not constitute reliable instruments for the measurement of physiological processes. In TMJ clicking, the actual physiological signal can be measured and compared with self-reports of the sounds. In this article a model is presented to describe perception, interpretation, and reporting of TMJ sounds. Three questionnaires are presented that measure aspects of these psychological processes. Recommendations are made for future research.

Attitude to Health↗

PubMed1991

The research on temporomandibular joint clicking: a methodological review.

The large variance in the reported prevalence of TMJ clicking is a result of the study of nonrepresentative groups, the use of different instruments, and the lack of a definition of "abnormal" clicking. Etiologic studies must be regarded with caution because it is not clear which mechanisms trigger TMJ clicking (or how) and because TMJ research is usually quasi-experimental, which precludes definitive conclusions concerning cause and effect. The lack of objective criteria makes diagnosis difficult. It is suggested that psychological factors such as symptom perception and report play a role in the decision to seek help, in the diagnosis, and in the treatment.

Adult↗

PubMed1991

[Dental anxiety: the use of photographs].

A questionnaire on dental anxiety using photographs, the FAV, was constructed. It measures the expected level of dental anxiety at ten different moments with regard to the dental treatment. Answers are given on a scale consisting of five photographs of facial expressions, ranging from 'relaxed' to 'extremely anxious'. The FAV has good psychometric qualities. The validation results are promising.

Adolescent↗

PubMed1991

[Sex differences in dental anxiety].

Dental anxiety was measured by administering a questionnaire with photographs to patients of two dental practices and a group of psychology students. In one group of patients behavior was also observed. Although in all samples females reported more anxiety than males, the difference was significant in only one of the samples. The difference did not correspond with the difference in actual behavior of the two sexes. In the discussion the question is raised whether the commonly found difference in dental anxiety between males and females is due to a structural difference or merely reflects a difference in verbal response.

Dental Anxiety↗

PubMed1990

Fetal liver disease may precede extrahepatic siderosis in neonatal hemochromatosis.

Three children of a mother with biopsy-confirmed posttransfusional hepatitis of undetermined etiology (non-A, non-B hepatitis) died in utero or in infancy. All had liver disease of intrauterine onset. The two liveborn children died of the consequences of severe hepatic insufficiency manifest at birth and met clinicopathologic criteria for neonatal hemochromatosis. Although hepatic architecture in the stillborn fetus was markedly disordered, with hepatocyte giant cell transformation, extrahepatic siderosis was not present and hepatic siderosis was minimal. These findings indicate that in some cases of neonatal hemochromatosis, extrahepatic siderosis may be caused by hepatic injury rather than primarily due to excessive transport of iron from mother to fetus and support speculation that in some instances an infective agent may be responsible.

Adolescent↗

PubMed1990

Prevalence of dental anxiety in The Netherlands.

The main purpose of this study was to investigate the prevalence of dental anxiety in the Netherlands by means of both a nationwide representative sample and a valid measurement instrument. The secondary aim was to discriminate between patients with high and low levels of dental anxiety on the basis of socioeconomic and oral health variables. Results showed that about 40% of the Dutch population experience a considerable degree of anxiety about dental treatment, and more than half of them can be considered as highly anxious. Dental anxiety is related to sex, age, and oral health status. Individual most prone to experience dental anxiety are women between 26 and 35 yr of age who do not visit a dentist regularly, live in one of the big cities, have a moderate or high educational level, are Public Health Insurance (Ziekenfonds) patients with a minimum income, judge their oral health as bad, and do not attach much importance to the preservation of their teeth.

Adolescent↗

PubMed1990

Dental anxiety: a comparison of dentate and edentulous subjects.

Dental anxiety was measured in a representative, nationwide sample consisting of both dentate and edentulous subjects. Comparison of the mean scores of both groups shows that the edentulous sample is neither more nor less anxious about dental treatment than the dentate sample. The distribution of dental anxiety in edentulous subjects, however, differs considerably from that of the dentate group. Complete denture wearers are both more often dentally phobic and more often free from any anxiety than subjects still having at least part of their natural dentition.

Adult↗

PubMed1990

Myopathy with hypophosphatasia.

Three children with hypophosphatasia also had muscle pains, stiffness, and symptoms of proximal lower limb muscle weakness that occurred early in the disorder and were the presenting features in two. A non-progressive myopathy may be an important sign of hypophosphatasia.

Child, Preschool↗

PubMed1990

Anxiety and blood pressure prior to dental treatment.

In the present study dental anxiety and blood pressure were assessed immediately prior to a dental appointment to assess the relationship between self-reported dental anxiety and blood pressure. Blood pressure was assessed by two independent methods, and the interchangeability of the blood-pressure measurement methods was also assessed. No relationship was demonstrated among scores on three dental anxiety questionnaires and blood-pressure values. The blood-pressure measurement methods delivered comparable values for diastolic and mean arterial blood pressure only.

Adult↗

PubMed1989

Immediate and delayed effects of a dental health education film on periodontal knowledge, attitudes, and reported behavior of Dutch adolescents.

In a field experiment the immediate and delayed effects of a 20-min dental health film on periodontal knowledge, attitudes, and reported behavior were assessed. Subjects were 425 12-14-yr-old Dutch adolescents. There were 12 experimental classes and eight control classes, matched for type of school, class, and level of urbanization. Results showed a substantial knowledge gain for the experimental group. This effect was sustained over a period of 2 months. For six items the gain was over 40%. Results did show a marginal effect of the film for attitude scores but no effect for reported behavior, either immediate or delayed. The effect of the film on knowledge was partly determined by background variables such as type of school, level of urbanization, and subject's age. No such interaction effects were obtained for attitude and reported behavior. The conclusion must be that knowledge of dental health issues can be improved by relatively simple means, but to change attitudes and behavioral dental practices more is needed than a 20-min film.

Adolescent↗

PubMed1989

Temporomandibular joint clicking: a literature overview.

In view of the literature, it can be stated that too little is known about the prognosis of TMJ clicking, factors determining the need for treatment, and long-term results of therapy. Consequently, there is a need for more standardized research, leading to classification of the various types of clicking and knowledge about changes in the course of time.

Auscultation↗

PubMed1988

Leukoencephalopathy among native Indian infants in northern Quebec and Manitoba.

We report 14 cases of a severe familial leukoencephalopathy among native North American Indian infants in northern Quebec and Manitoba. Affected infants have hypotonia and mild motor delay, followed by seizures, hypotonia or spasticity, eye deviation, and abnormal posture during a febrile illness around 6 months of age. Death follows a rigid, vegetative state that manifests days to months after disease onset and is marked in some cases by prominent autonomic disturbances, blindness, and cessation of head growth. Symmetrical hemispheric white matter lucencies and diffuse hypomyelination of the cerebral hemispheres and brainstem are the radiological and pathological hallmarks. This disease differs from the known diseases of cerebral myelin. An autosomal recessive pattern of inheritance awaits statistical confirmation. The proposed cause is a delay in development or abnormal turnover of central nervous system myelin.

Brain↗

PubMed1988