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Sökning: L773:1097 6779 > (2005-2009)

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  • Feldmann, Ingalill, et al. (författare)
  • Anchorage capacity of osseointegrated and conventional anchorage systems : a randomized controlled trial.
  • 2008
  • Ingår i: American Journal of Orthodontics and Dentofacial Orthopedics. - 0889-5406 .- 1097-6752. ; 133:3, s. 339.e19-28
  • Tidskriftsartikel (refereegranskat)abstract
    • INTRODUCTION: Our aim in this investigation was to evaluate and compare orthodontic anchorage capacity of 4 anchorage systems during leveling/aligning and space closure after maxillary premolar extractions. METHODS: One hundred twenty patients (60 girls, 60 boys; mean age, 14.3 years; SD 1.73) were recruited and randomized into 4 anchorage systems: Onplant (Nobel Biocare, Gothenburg, Sweden), Orthosystem implant (Institut Straumann AG, Basel, Switzerland), headgear, and transpalatal bar. The main outcome measures were cephalometric analysis of maxillary first molar and incisor movement, sagittal growth changes of the maxilla, and treatment time. The results were also analyzed on an intention-to-treat basis. RESULTS: The maxillary molars were stable during the leveling/aligning in the Onplant, Orthosystem implant, and headgear groups, but the transpalatal bar group had anchorage loss (mean, 1.0 mm; P <.001). During the space-closure phase, the molars were still stable in the Onplant and Orthosystem groups, whereas the headgear and transpalatal bar groups had anchorage loss (means, 1.6 and 1.0 mm, respectively; P <.001). Thus, the Onplant and the Orthosystem implant groups had significantly higher success rates for anchorage than did the headgear and transpalatal bar groups. Compared with the Orthosystem implant, there were more technical problems with the Onplant. CONCLUSIONS: If maximum anchorage is required, the Orthosystem implant is the system of choice.
  • Burnand, B, et al. (författare)
  • Use, appropriateness, and diagnostic yield of screening colonoscopy: an international observational study (EPAGE)
  • 2006
  • Ingår i: Gastrointestinal Endoscopy. - Mosby. - 1097-6779. ; 63:7, s. 1018-1026
  • Tidskriftsartikel (refereegranskat)abstract
    • Abstract in Undetermined Background Screening for colorectal cancer (CRC) has been shown to decrease mortality. Objective To examine determinants associated with having (1) a screening colonoscopy, (2) an appropriate indication for screening, and (3) a significant diagnosis at screening. Design Prospective observational study. Setting Twenty-one endoscopy centers from 11 countries. Patients Asymptomatic patients who underwent a colonoscopy for the purpose of detecting CRC and who did not have a history of polyps or CRC, a lesion observed at a recent barium enema or sigmoidoscopy, or a recent positive fecal occult blood test. Intervention Screening colonoscopy. Main Outcome Measurements Appropriateness according to the European Panel on the Appropriateness of Gastrointestinal Endoscopy (EPAGE) criteria and significant diagnoses (cancer, adenomatous polyps, new diagnoses of inflammatory bowel disease, angiodysplasia). Results Of 5069 colonoscopies, 561 (11%) were performed for screening purposes. Patients were more likely to have a screening colonoscopy if they were aged 45 to 54 years (odds ratio [OR] 2.53, 95% confidence interval [CI] 1.60-3.99). Screening colonoscopies were appropriate, uncertain, and inappropriate in 26%, 60%, and 14% of cases, respectively. Eighty-one significant diagnoses were made, including 4 cancers. Significant diagnoses were more often made for uncertain/appropriate indications (OR 3.20, 95% CI 1.12-9.17) than for inappropriate indications. Limitations Although data completeness was asked of all centers, it is possible that not all consecutive patients were included. Participating centers were a convenience sample and thus may not be representative. Conclusions About 1 of 10 colonoscopies were performed for screening, preferentially in middle-aged individuals. A higher diagnostic yield in uncertain/appropriate indications suggests that the use of appropriateness criteria may enhance the efficient use of colonoscopy for screening.
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