Deepika Kapoor1, Deepanshu Garg2, Neeraj Mahajan3, Samriti Bansal4, Anshul Sawhney5, Jasvir Kaur6, Shashank Tripathi7, Neha Malaviya8. 1. Assistant Professor, Department of Pedodontics, Universal College of Dental Sciences , Bhairahawa, Nepal . 2. Assistant Professor, Department of Oral Medicine and Radiology, Universal College of Dental Sciences , Bhairahawa, Nepal . 3. Professor and HOD, Department of Pedodontics, Guru Nanak Dev Dental College and Research Institute , Sunam, Panjab, India . 4. Reader, Department of Pedodontics, Guru Nanak Dev Dental College and Research Institute , Sunam, Panjab, India . 5. Assistant Professor, Department of Periodontics, UCMS , Bhairahawa, Nepal . 6. Senior Lecturer, Department of Pedodontics, Bjs Dental College , Ludhiana, India . 7. Assistant Professor, Department of Oral Surgery, UCMS , Bhairahawa, Nepal . 8. Assistant Professor, Department of Prosthodontics, UCMS , Bhairahawa, Nepal .
Abstract
INTRODUCTION: 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. AIM: 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. MATERIALS AND 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). CONCLUSION: 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.
INTRODUCTION: 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. AIM: 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. MATERIALS AND 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). CONCLUSION: 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.