摘要:

The aims of this study were 1) to investigate whether oral hygiene and dietary habits established at 1 year of age are maintained at 2 years of age and 2) to analyze caries-related factors with regard to oral health between the age of 1 and 3 years by using the salutogenic theory—that is, focusing on behavioral factors that donotresult in impairment of health. Altogether 289 children were examined at 1,2, and 3 years of age, and their parents were interviewed about the children's oral hygiene and dietary habits at 1 and 2 years of age. The result shows that caries-related habits, such as oral hygiene and dietary habits, established during infancy are maintained throughout early childhood. The principles of the salutogenic theory were found to be applicable when studying caries-related habits and oral health. Thus, if a dietary risk behavior is established at 1 year of age, die chance of remaining caries-free until 3 years of age is highest if good oral hygiene habits, including the use of fluoride toothpaste, are present at 2 years of age. We therefore conclude that comprehensive knowledge of a child's future dental health can be obtained by using chairside information—that is, interview of the parents and clinical examination of the children.

ISSN:0001-6357    

DOI:10.3109/00016359609006019

出版商:Taylor&Francis    

年代:1996

数据来源: Taylor

摘要:

The effect of different mandibular postures on the growth of the mandible was studied. A total of 60 female Wistar rats were divided into 3 groups, and all the animals were anesthetized for 6 h daily from the age of 30 days onwards. The first group served as controls. The second had the mandible maintained in a protracted position, and the third had the mandible in an open position during the anesthesia. Macroscopic measurements showed the growth of the mandibular condyle to be increased in a posteroinferior direction and also in a superior direction in the animals with the mandible in an open position. The cartilage layer containing collagen type II was significantly thinned, whereas cell proliferation had significantly increased in the posterosuperior region. In association with mandibular protrusion the thickness of the cell layer containing collagen type II had increased, and cell proliferation in the posterosuperior region had significantly decreased. Significant differences in the growth of the condylar process were observed histologically and histochemically between the experimental animals, implying that the most rewarding aspect of the regulation of condylar growth seems to be the possibility to regulate the maturation rate of the cartilage cells.

ISSN:0001-6357    

DOI:10.3109/00016359609006020

出版商:Taylor&Francis    

年代:1996

数据来源: Taylor