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- Bondemark, Lars, et al.
(författare)
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Long-term stability of orthodontic treatment and patient satisfaction : A systematic review
- 2007
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Ingår i: Angle orthodontist. - 0003-3219 .- 1945-7103. ; 77:1, s. 181-191
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Forskningsöversikt (refereegranskat)abstract
- Objective: To evaluate morphologic stability and patient satisfaction at least 5 years after orthodontic treatment. Materials and Methods: Published literature was searched through the PubMed and Cochrane Library electronic databases from 1966 to January 2005. The search was performed by an information specialist at the Swedish Council on Technology Assessment in Health Care. The inclusion criteria consisted of a follow-up period of at least 5 years postretention, randomized clinical trials, prospective or retrospective clinical controlled studies, and cohort studies, and orthodontic treatment including fixed or removable appliances, selective grinding, or extractions. Two reviewers extracted the data independently and also assessed the quality of the studies. Results: The search strategy resulted in 1004 abstracts or full-text articles, of which 38 met the inclusion criteria. Treatment of crowding resulted in successful dental alignment. However, the mandibular arch length and width gradually decreased, and crowding of the lower anterior teeth reoccurred postretention. This condition was unpredictable at the individual level (limited evidence). Treatment of Angle Class II division 1 malocclusion with Herbst appliance normalized the occlusion. Relapse occurred but could not be predicted at the individual level (limited evidence). The scientific evidence was insufficient for conclusions on treatment of cross-bite, Angle Class III, open bite, and various other malocclusions as well as on patient satisfaction in a long-term perspective. Conclusions: This review has exposed the difficulties in drawing meaningful evidence-based conclusions often because of the inherent problems of retrospective and uncontrolled study design. © 2006 by The EH Angle Education and Research Foundation, Inc.
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- Lindman, Rolf, et al.
(författare)
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Morphological characterization of the levator veli palatini muscle in children born with cleft palates
- 2001
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Ingår i: The Cleft Palate-Craniofacial Journal. - 1055-6656 .- 1545-1569. ; 38:5, s. 438-448
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Tidskriftsartikel (refereegranskat)abstract
- OBJECTIVE: The aim of this study was to analyze, morphologically and biochemically, one of the soft palate muscles, the levator veli palatini (LVP), in children born with cleft palate.SUBJECTS AND METHODS: Biopsies were obtained from nine male and three female infants in connection with the early surgical repair of the hard and soft palate. Samples from five adult normal LVP muscles were used for comparison. The muscle morphology, fiber type and myosin heavy chain (MyHC) compositions, capillary supply, and content of muscle spindles were analyzed with different enzyme-histochemical, immunohistochemical, and biochemical techniques.RESULTS: Compared with the normal adult subjects, the LVP muscle from the infantile subjects with cleft had a smaller mean fiber diameter, a larger variability in fiber size and form, a higher proportion of type II fibers, a higher amount of fast MyHCs, and a lower density of capillaries. No muscle spindles were observed. Moreover, one-third of the biopsies from the infantile subjects with cleft LVP either lacked muscle tissue or contained only a small amount.CONCLUSIONS: The LVP muscle from children with cleft palate has a different morphology, compared with the normal adult muscle. The differences might be related to different stages in maturation of the muscles, changes in functional demands with growth and age, or a consequence of the cleft. The lack of contractile tissue in some of the cleft biopsies offers one possible explanation to a persistent postsurgical velopharyngeal insufficiency in some patients, despite a successful surgical repair.
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- Marcusson, Agneta, et al.
(författare)
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Alterations in occlusion and maxillary dental arch dimensions in adults with treated unilateral complete cleft lip and palate
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Annan publikation (övrigt vetenskapligt/konstnärligt)abstract
- The purpose of this stndy was to evaluate the occlusion and maxillary dental arch dimensions in adults with repaired complete unilateral cleft lip and palate (UCLP) and to investigate the patterns of change in early adulthood. Study models from 39 subjects (25 men, 14 women) (mean age 24.7 years, range 20.2-29.3) with the diagnosis complete UCLP taken at a follow-up examination were analysed and compared with the study models taken at baseline examination (mean age 19.1 years, range 16.0-20.6). Lip closure was made according to the Millard technique and palatal closure according to the Wardill-Kilner technique. All subjects had received orthodontic treatment with fixed appliances. The subjects were divided into three groups according to the type of retention in the upper jaw: no retention (n = 15), retention with bonded twisted retainer (n = 13), onlay or fixed bridge (n = 11).Occlusion was evaluated according to a scoring system (Huddart and Bodenham, 1972). The maxillary dental arch dimensions were measured with a video imaging system. In the total sample there was a significant deterioration in the total occlusal score during the follow-up period. The impairment was larger on the cleft side than on the non-cleft side. There were no significant differences in the frontal scores. A comparison of the transversal and sagittal maxillary arch dimensions revealed significant differences in all measurements during the follow-up interval. The reduction was largest for the maxillary second premolar width, followed by the first molar width. The oveijet differed significantly between the registrations. The occlusal score and the maxillary arch dimensions were reduced in all of the three subgroups, but there were no differences between the groups. No gender differences were found.
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- Marcusson, Agneta, 1956-, et al.
(författare)
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Changes in occlusion and maxillary dental arch dimensions in adults with treated unilateral complete cleft lip and palate : A follow-up study
- 2004
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Ingår i: European Journal of Orthodontics. - : Oxford University Press (OUP). - 0141-5387 .- 1460-2210. ; 26:4, s. 385-390
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Tidskriftsartikel (refereegranskat)abstract
- The purpose of this study was to evaluate the occlusion and maxillary dental arch dimensions in adults with repaired complete unilateral cleft lip and palate (UCLP) and to investigate the patterns of change in early adulthood. Study models from 39 patients (25 men, 14 women, mean age 24.7 years, range 20.2-29.3 years) with a diagnosis of complete UCLP taken at a follow-up examination were analysed and compared with the study models taken at baseline examination (mean age 19.1 years, range 16.0-20.6 years). Lip closure was carried out according to the Millard technique and palatal closure according to the Wardill-Kilner technique. All patients had received orthodontic treatment with fixed appliances. The patients were divided into three groups according to the type of retention in the upper arch: no retention (n = 15), retention with a bonded twisted retainer (n = 13), an onlay or fixed bridge (n = 11). Occlusion was evaluated according to a scoring system. The maxillary dental arch dimensions were measured with a video imaging system. There was a significant deterioration in the total occlusal score during the follow-up period and this was larger on the cleft than on the non-cleft side. There were no significant differences in the anterior scores. A comparison of the transversal and sagittal maxillary arch dimensions revealed significant differences in all measurements during the follow-up interval. The reduction was largest for the maxillary second premolar width, followed by the first molar width. The overjet differed significantly between the registrations. The occlusal score and the maxillary arch dimensions were reduced in all of the three subgroups, but there were no differences between the groups.
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