title: Comparison of K-loop Molar Distalization with that of Pendulum Appliance - A Prospective Comparative Study.
abstract: BACKGROUND
  Molar distalization is the non extraction method of managing Class II malocclusions.
  
  
  OBJECTIVE
  The purpose of this study was to evaluate the skeletal and dentoalveolar effects of maxillary molar distalization with K-loop appliance, and to compare these effects with that of pendulum group.
  
  
  METHODS
  Class I and dental Class II malocclusions were divided into two groups of 15 each: In Group 1 (nine females and six males; mean age, 16.0±2.6 years) patients were treated with K-Loop molar distalization supported palatally by Nance button, while in Group 2 (seven females and eight males; mean age, 15.4±4.7 years), the patients were treated with conventional pendulum appliance. Standardized lateral cephalograms were taken at the beginning of treatment (T0) and at the end of molar distalization (T1) and the changes were statistically analyzed with paired t-test.
  
  
  RESULTS
  The results showed no statistically significant difference in the amount of molar distalization in either of the appliance groups: the mean amount of molar distal movement of 5.1±0.8 mm and 4.93±1.68 mm was observed in the Group 1 and 2 respectively. The incisors moved mesially by 1.3±0.63 mm in Group 1 and 1.57±0.58 mm in Group 2.
  
  
  CONCLUSIONS
  K-Loop molar distalizing appliance has similar skeletal and dentoalveolar effects as that of pendulum appliance, with the advantages of simple yet efficient to control the moment-force ratio to produce all types of tooth movements and also requires minimal patient co-operation.
authors: Professor, Department of Orthodontics, SVS Institute of Dental Sciences , Mahabubnagar, Telangana, India .
authors: Nagam Reddy
authors: NR
authors: Shashidhar
authors: Professor Emirates, Department of Orthodontics, SIBAD Institue of Dental Sciences , Guntur, Andhra Pradesh, India .
authors: S Rama Koteswara
authors: SR
authors: Reddy
authors: Associate Professor, Department of Orthodontics, SVS Institute of Dental Sciences , Mahabubnagar, Telangana, India .
authors: Madhukar Reddy
authors: MR
authors: Rachala
keywords: Class II malocclusion; Dento-aveolar effects; Non extraction treatment; Vertical dimension