title: [Analysis of orthodontic treatment efficiency in children with dental crowding].
abstract: BACKGROUND
  Efficiency of dental treatment is necessary to provide optimal results with less outlay of clinical time and shorter duration of treatment and for stable and balanced occlusion.
  
  
  OBJECTIVE
  To compare duration of orthodontic treatment in children with dental crowding by authoring and traditional methods.
  
  
  METHODS
  Orthodontic treatment of 37 patients with dental crowding of severe degree in period of mixed dentition was carried out. The first (1) (basic) group consisted of 27 patients (mean age 11,93±0,73 years) who were treated with removable orthodontic appliances of our own design and additional application of own theoretical and practical developments. Control group (2) consisted of 10 patients (mean age 12,6±1,28 years). They were treated by traditional removable appliances with screws. Student's t-test was applied to reveal significanсe deference of the obtained results for different groups. Before treatment comparative analysis has not showed significant difference between groups depending on age, gender, sagittal, vertical and lateral malocclusion as well as localization and severity degree of dental crowding (P >0,05).
  
  
  RESULTS
  It was found that treatment duration of malocclusion with dental crowding of the maxillary teeth for groups 1 and 2 was 11,95±0,85 and 18,75±2,61 months respectively (P >0,05) . Duration of treatment for groups 1 and 2 of mandibular teeth crowding was 12,47±1,09 and 17,86±1,81 months respectively (P >0,05).
  
  
  CONCLUSIONS
  It was proved that the application of own theoretical and practical developments which were introduced in orthodontic treatment of malocclusion complicated by dental crowding, makes it possible to reduce period of treatment on the average in 1,45 times in comparison with conventional.
authors.affiliation: ВЫСШЕЕ ГОСУДАРСТВЕННОЕ УЧЕБНОЕ ЗАВЕДЕНИЕ УКРАИНЫ«УКРАИНСКАЯМЕДИЦИНСКАЯСТОМАТОЛОГИЧЕСКАЯАКАДЕМИЯ» ПОЛТАВА, УКРАИНА
authors.forename: Марина И
authors.initials: МИ
authors.lastname: Дмитренко
authors.affiliation: ВЫСШЕЕ ГОСУДАРСТВЕННОЕ УЧЕБНОЕ ЗАВЕДЕНИЕ УКРАИНЫ«УКРАИНСКАЯМЕДИЦИНСКАЯСТОМАТОЛОГИЧЕСКАЯАКАДЕМИЯ» ПОЛТАВА, УКРАИНА
authors.forename: Елена А
authors.initials: ЕА
authors.lastname: Писаренко
mesh_terms: D000293:Adolescent; D002648:Child; D003818:Dentition, Mixed; D006801:Humans; D008310:Malocclusion / Q000628:therapy*; D009970:Orthodontics
keywords: dental crowding; malocclusion; orthodontic treatment; сhildren