title: Class II Division 1 in New Dimension: Role of Posterior Transverse Interarch Discrepancy in Class II Division 1 Malocclusion During the Mixed Dentition Period.
abstract: BACKGROUND
  Posterior transverse discrepancy as seen in some cases of Class II Division 1 malocclusion in mixed dentition period can be related to typical skeletofacial characteristics. These features when studied early in the mixed dentition period give a clear view of the desired appropriate treatment plan in a particular case.
  
  
  OBJECTIVE
  The purpose of this study was to establish a simple method to determine the posterior (intermolar) transverse discrepancy and craniofacial skeletal features between the dental arches during the mixed dentition in a sample of Class II Division 1 patients to provide diagnostic and therapeutic guidance in the early approach.
  
  
  METHODS
  A sample of 60 Class II Division 1 patients in mixed dention that were divided into 30 Class II Division 1 patients with posterior transverse interarch discrepancy {Class II (I) PTID group} and 30 Class II Division 1 patients without posterior transverse interarch discrepancy {Class II (I) NPTID group}. Thirty Class I subjects in mixed dentition were included as control.
  
  
  RESULTS
  The skeletal features of the Class II group without PTID are those of the skeletal Class II associated with 'anatomic' mandibular retrusion (due to a micrognathic mandible) and those of the Class II group with PTID as skeletal Class II associated with only a 'functional' mandibular retrusion (due to a posteriorly displaced mandible of normal size).
  
  
  CONCLUSIONS
  This study confirmed the role of occlusion in the control of maxillomandibular skeletal relationships.The treatment strategies could be planned on the basis of the transverse component of Class II Division 1 groups in the mixed dentition period.
authors.affiliation: Assistant Professor, Department of Pedodontics, Universal College of Dental Sciences , Bhairahawa, Nepal .
authors.forename: Deepika
authors.initials: D
authors.lastname: Kapoor
authors.affiliation: Assistant Professor, Department of Oral Medicine and Radiology, Universal College of Dental Sciences , Bhairahawa, Nepal .
authors.forename: Deepanshu
authors.initials: D
authors.lastname: Garg
authors.affiliation: Professor and HOD, Department of Pedodontics, Guru Nanak Dev Dental College and Research Institute , Sunam, Panjab, India .
authors.forename: Neeraj
authors.initials: N
authors.lastname: Mahajan
authors.affiliation: Reader, Department of Pedodontics, Guru Nanak Dev Dental College and Research Institute , Sunam, Panjab, India .
authors.forename: Samriti
authors.initials: S
authors.lastname: Bansal
authors.affiliation: Assistant Professor, Department of Periodontics, UCMS , Bhairahawa, Nepal .
authors.forename: Anshul
authors.initials: A
authors.lastname: Sawhney
authors.affiliation: Senior Lecturer, Department of Pedodontics, Bjs Dental College , Ludhiana, India .
authors.forename: Jasvir
authors.initials: J
authors.lastname: Kaur
authors.affiliation: Assistant Professor, Department of Oral Surgery, UCMS , Bhairahawa, Nepal .
authors.forename: Shashank
authors.initials: S
authors.lastname: Tripathi
authors.affiliation: Assistant Professor, Department of Prosthodontics, UCMS , Bhairahawa, Nepal .
authors.forename: Neha
authors.initials: N
authors.lastname: Malaviya
keywords: Craniofacial skeletal features; Intermolar width; Mandibular retrusion; Occlusion