| 1. |
- Bjerklin, Krister, et al.
(författare)
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Orthodontic treatment need, outcome and residual treatment need in 15- and 20-year-olds
- 2012
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Ingår i: Swedish Dental Journal. - 0347-9994. ; 36:3, s. 157-165
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Tidskriftsartikel (refereegranskat)abstract
- The aim of the study was to investigate orthodontic treatment need and the outcome of orthodontic treatment in 15-, and 20-year-olds in Jönköping, Sweden, with special reference to residual treatment need. An offer to participate in a clinical investigation was extended to random samples of 130 15-year-olds and 130 20-year-olds. Ninety-six of the 15-year-olds (73.3%; 45 boys and 51 girls) and 82 of the 20-year-olds (62.6%; 47 males and 35 females) accepted and presented for examination The participants filled in a questionnaire and impressions were taken for study models, which were graded according to the ICON index. In all, 39 (40.6%) of the 15-year-olds and 38 (46.3%) of the 20-year-olds had undergone or were currently undergoing orthodontic treatment. Ninety-one per cent of the 15-year-olds and 84% of the 20-year-olds considered that the orthodontic treatment goals had been fully or almost fully attained. Two of the 15-year-olds and two of the 20-year-olds currently wanted orthodontic treatment. This indicates a residual treatment demand of about 2%.
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| 2. |
- Josefsson, Eva, et al.
(författare)
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Self-perceived orthodontic treatment need and prevalence of malocclusion in 18- and 19-year-olds in Sweden with different geographic origin
- 2010
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Ingår i: Swedish Dental Journal. - 0347-9994. ; 34:2, s. 95-106
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Tidskriftsartikel (refereegranskat)abstract
- Orthodontic treatment need and demand in 19-year-olds in Sweden has not previously been analysed in relation to geographic origin. The aim of this follow-up study was to examine the prevalence of self-perceived treatment need, malocclusion, earlier orthodontic treatment, self-perceived dental aesthetics and prevalence of symptoms indicative oftemporomandibular disorders in 18-19 year-olds and to analyze any differences between native born and immigrants. Body esteem and psychological wellbeing were also evaluated. The subjects, n=316, were grouped according to family origin: Group A: both parents born in Sweden (98 girls, 80 boys); Group B:the subject or at least one parent born in Eastern /South Eastern Europe (24 girls, 26 boys) and Group C: Asia (44 girls, 44 boys). Two hundered and sixty-eight participants presented for clinical examination and answered the full questionnaire, and 48 who rejected clinical examination,were interviewed by telephone using selected questions from a questionnaire. The results show that adolescents of Asian origin had a higher self-perceived treatment need than adolescents of Swedish origin. There were negligible inter-group differences with respect to frequency of malocclusion. Forty-four per cent of all participants had previously undergone orthodontic treatment, significantly more Swedish than Asian subjects. Dissatisfaction with dental aesthetics was attributed primarily to tooth colour (38 per cent) and irregular anterior teeth (34 per cent). Adolescents of Asian origin had a higher frequency of headache than those of Eastern/South Eastern European origin. Compared to boys, girls had a higher self-perceived treatment need, a higher frequency of headache and TMD and were more concerned about body appearance. Psychological wellbeing was reduced in nearly one quarter of the participants, predominantly girls: girls of Asian origin had the highest frequency. No association was found between self-perceived orthodontic treatment need and psychological wellbeing.
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| 3. |
- Lindsten, Rune
(författare)
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Secular changes in tooth size and dental arch dimensions in the mixed dentition
- 2003
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Ingår i: Swedish Dental Journal. - 0347-9994. ; :157, s. 1-89
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Tidskriftsartikel (refereegranskat)abstract
- Secular changes in the mixed dentition were studied. Permanent tooth size and dental arch dimensions were examined in Norwegian children born in the 1960s and 1980s, Swedish children born in the 1960s and 1980s, Norwegian Sami children born in the 1980s, and a sample of Norwegian skulls dating from the 14th to the 19th century. The Norwegian Sami children were nomadic in the summertime. A sample of pigs was studied before and after a maceration process to determine what dimensional changes might occur in such a process. A shrinkage of 0.3%-1.7% was found. This information was used when the skulls were compared with the modern groups. Lateral dental arch lengths were shorter in the children born in the 1960s compared with the children born in the 1980s. This was a result of the higher prevalence of caries in the second deciduous molars in the 1960s groups. Children who had lost a deciduous canine prematurely were found to have smaller dental arch perimeters. When compared with other data, this was blamed on a pre-existing crowding. Permanent tooth size was smaller in the skulls compared with the modern groups. Improved nutrition is considered to be the main reason for the difference. Relative dental arch space differed in the group born in the 1960s from that in the other groups, indicating a greater prevalence of crowding in the former. Relative dental arch space in the skulls and in the group born in the 1980s was similar. A more traditional way of living, as practised by the Sami group in this thesis, was not favorable for relative dental arch space. The transverse intermaxillary relation in boys changed from the 1960s to the 1980s, which indicated that the 1980s group ran a greater risk of developing a posterior cross-bite. Before the same conclusion could be made in the girls, the mesial drift of the first permanent molars had to be corrected for, because of a higher prevalence of caries in the 1960s group. The sex-pooled analysis of the skulls and the contemporary groups revealed that the risk for developing a posterior cross-bite in the 1980s group was greater than in the skulls. The skulls had smaller arch depths than the modern groups.
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