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Biomedical subjects

I Egermark-Eriksson

Publications and source records attributed to I Egermark-Eriksson.

At least 19 recordsLinked to original sources
PubMed1991

An evaluation of the need and demand for treatment of craniomandibular disorders in a young Swedish population.

In an epidemiologic sample of 119 20-year-olds, it was found that both signs and symptoms of mandibular dysfunction were fairly common but in most cases were mild. Twenty-seven percent of the sample were judged by the examiners to be in need of some functional treatment, but the treatment advocated was simple and not time consuming. Three percent of the sample actively demanded some functional treatment.

Adult↗
PubMed1990

A longitudinal study on malocclusion in relation to signs and symptoms of cranio-mandibular disorders in children and adolescents.

Two-hundred-and-thirty-eight subjects in three different age-groups (7, 11, and 15 years) were followed over a period of 4-5 years in respect of morphological malocclusions, and signs and symptoms of functional disturbances. About half of the 7-year-olds had at least one of the morphological malocclusions registered while the corresponding figure was 38 per cent at the age of 20. Some subjects had received corrective orthodontic treatment. When compared with subjects without such treatment, there were no differences in prevalences of occlusal interferences, nor in signs or symptoms of craniomandibular disorders (CMD). The associations between CMD and different morphological malocclusions were low. Nevertheless, some malocclusions were found to be more important than others. In a long-term perspective cross-bite, both uni- and bilateral, anterior open bite, post-, and prenormal occlusion had some association with the development of CMD.

Adolescent↗
PubMed1987

A long-term epidemiologic study of the relationship between occlusal factors and mandibular dysfunction in children and adolescents.

A longitudinal investigation of changes of signs and symptoms of mandibular dysfunction over four to five years was performed, by means of questionnaires and clinical examination, in 240 children, ages 7, 11, and 15 years at the first examination. The objective of this part of the study was to analyze correlations between some occlusal and other factors, and mandibular dysfunction. Signs and symptoms of mandibular dysfunction increased slightly in both frequency and severity but were judged to be mild in most cases. Several types of occlusal interference were frequently recorded at both examinations. Dental wear increased during the follow-up period, while the results of evaluations of motor activity and psychological traits were relatively constant. There were only a few significant correlations, most of which were weak, between the recorded variables and mandibular dysfunction, and those found were not consistent in all age groups. TMJ sounds were positively correlated with lateral deviation of the mandible between retruded contact and intercuspal position in all age groups. An attempt to analyze the longitudinal relationship of occlusal interference with signs and symptoms of mandibular dysfunction did not reveal any strong correlations. The results are interpreted as supporting the heterogeneous and multifactorial nature of functional disturbances of the masticatory system.

Adolescent↗
PubMed1985

Four-year longitudinal study of mandibular dysfunction in children.

A longitudinal study of clinical signs and subjective symptoms of mandibular dysfunction was performed with a 4-yr interval in 119 children, now 11 and 15 yr old. The results showed that 66% in both age groups had clinical signs while 62 and 66%, respectively, complained of subjective symptoms. In most cases the signs were mild, but 11% of the 11-yr-olds and 17% of the 15-yr-olds had moderate, or, in a few cases, severe signs of dysfunction. Most of the children with subjective symptoms had their symptoms occasionally but 3% in the younger and 11% in the older age group had frequent symptoms from the masticatory system. When comparisons were made with the findings 4 yr earlier, it was noted that the subjective symptoms had increased in frequency in the younger children, while the clinical signs had increased in both groups. These age differences, as well as the prevalence figures recorded longitudinally, agreed well with previous findings in cross-sectional investigations of different age groups.

Adolescent↗
PubMed1983

The dependence of mandibular dysfunction in children on functional and morphologic malocclusion.

The influence of dental status, occlusal interference, occlusal anomalies, and general background variables on bruxism and subjective symptoms and clinical signs of mandibular dysfunction has been studied in children. Three samples of children, aged 7, 11, and 15 years, were included. The interrelations were analyzed by rank-correlation and stepwise multiple regression. In the rank-correlation analyses, dental wear and age were significantly correlated to all of the dysfunction variables. Bruxism (reported by the subjects) was not found to be significantly correlated to any of the independent variables in the regression analysis. Subjective symptoms of dysfunction could be explained to a small extent by the independent variables, of which dental wear and sucking habits were found to be the most important. Recurrent headache was, to a certain extent, dependent upon age and sex. TMJ clicking was positively correlated with dental wear and unilateral contact in the retruded contact position but was most influenced by age and sex; TMJ clicking increased with age and was more common in girls than in boys. The clinical dysfunction index of Helkimo and tenderness of the masticatory muscles on palpation were explainable, although to a minor degree, by the influence of a combination of age, occlusal interference, motor activity, and psychological factors. Functional malocclusion (occlusal interference) is more important than morphologic malocclusion in explaining the existence of mandibular dysfunction. Nevertheless, morphologic malocclusion such as Class II and Class III occlusion, frontal open-bite, and cross-bite, when associated with functional malocclusion, may create a predisposition to mandibular dysfunction. The study confirms the multifactorial etiology of mandibular dysfunction.

Adolescent↗
PubMed1982

Anomalies of occlusion predisposing to occlusal interference in children.

The associations between different types of occlusal interference and of occlusal anomalies were studied in children 7, 11 and 15 years of age. Incisor and buccal crossbite and post-normal occlusions were positively related to large antero-posterior distance or lateral deviation between the retruded and intercuspal mandibular positions, and to nonworking side interference. There was a positive correlation between frontal open bite and nonworking side interference, while large overbite was negatively correlated. The correlations found were numerically small, indicating that other factors apart from those studies must be significantly involved in such occlusal interferences.

Adolescent↗
PubMed1982

Prevalence of headache in Swedish schoolchildren. A questionnaire survey.

Fourhundred and two (402) schoolchildren in the age-groups 7, 11 and 15 years answered a questionnaire concerning headache. Recurrent headache was reported by 23% of the children, while 52% said that they had headache occasionally. Headache was more common among the older children than among the younger ones, and in the oldest age-group headache was more common in girls than in boys. 6% of the children had consulted a physician for their headache. In most cases, the headache was of varying character. It often occurred in the afternoon and evening but even during schooltime, and was generally of short duration. Children with recurrent headache had more severe headache and headache of longer duration than children with headache occasionally who also more often thought that their headache was provoked by illness. In the oldest age-group a positive correlation was found between headache and a high rate of absence from school, and a negative correlation between headache and grade in physical education.

Adolescent↗
PubMed1982

Malocclusion and some functional recordings of the masticatory system in Swedish schoolchildren.

Four hundred and two children aged 7, 11 and 15 years answered a questionnaire and were clinically examined. Sixty per cent of the children had some form of occlusal anomaly. One fifth of 7-year-old children and 3 per cent of 11-year-old children were dummy- or finger-suckers and these children often had crossbite and frontal open bite. The mean maximal opening capacity was 49 mm in 7-year-old children and 53 mm and 57 mm respectively in the two oldest age-groups. The horizontal mobility was almost the same for 11- and 15-year-old children (about 10 mm) but slightly lower in the youngest children. The average distances between the retruded contact and intercuspal positions (RP and IP) antero-posteriorly, vertically and laterally were 0.6 mm, 0.5 mm and 0.3 mm respectively. Most of the children (60%) had a RP-IP displacement of 0.5-1.0 mm antero-posteriorly while 1% had dual bite. Children with postnormal occlusion had a large RP-IP distance antero-posteriorly and children with crossbite a lateral deviation more often than children without these occlusal anomalies. Fourteen per cent of 15-year-old children had dentine visible on at least one incisor. Children with deep bite had less worn teeth than other children.

Adolescent↗
PubMed1980

Intra- and inter-observer variation in functional examination of the masticatory system.

Occlusal variables and clinical signs of functional disturbances of the masticatory system were studied with respect to intra- and inter-observer differences in 11-year-old children and adults. Inter-observer differences were present in all registrations made. They were relatively small when measuring the movement capacity of the mandible but large when measuring the distance between RP-IP. The clinical dysfunction index was recorded with an agreement of 82% (Scott's pi = 0.69) in children, 73% (Scott's pi = 0.58) in adults. Repeated registrations performed 5 weeks apart in the child group showed high agreement while repeated registrations with an interval on one year in the adult group revealed considerable variations for mandibular mobility and for the clinical dysfunction index. The study showed that intra-observer constancy is larger than that between different observers. Thus repeated registrations in longitudinal studies should be done by the same observer. In order to control unavoidable observer errors, and to minimize the influence of the large, normal fluctuation of clinical signs that are known to occur, longitudinal studies should include control groups.

Adolescent↗