Comparative evaluation of dental, dentoalveolar and skeletal effects of slow maxillary expansion using Jackscrew, Quadhelix and Niti palatal expander2 on a finite element model of a young skull

Journal Title: IP Indian Journal of Orthodontics and Dentofacial Research - Year 2017, Vol 3, Issue 3

Abstract

Introduction: Slow expansion is a routine procedure for space gaining in Orthodontics. Jack Screw, Quadhelix and NiTi palatal expander-2 are commonly used slow expansion devices with a varied degree of dental and skeletal effects. Finite element method is a well- established technique to analyze stress and deformation in the craniofacial region in three dimensions after application of orthodontic forces. This study was aimed to evaluate and compare the dental, dento-alveolar and skeletal effects of the three slow expansion devices: Jackscrew, Quad helix and NiTi expander-2 on a young maxillary bone using a finite element model. Materials and Method: The 3D finite element model was developed after scanning a dried human skull of mixed dentition with white light scanner. The mechanical properties of the teeth, bone and sutures were defined for the analytical model and subjected to forces by three expansion devices to compare their dental, dento-alveolar and skeletal effects. Results: All the three expansion devices show significant difference in overall stress distribution and deformation in X and Y axis whereas equal efficiency in Z-axis. All the three devices showed significant differences in dental, dento-alveolar and skeletal effects where, Jackscrew showed highest deformation in X axis in the dental region and highest deformation in Y and Z axis in the dento-alveolar region. Conclusion: The highest values of stress and strain are shown by Jackscrew, followed by Quadhelix and lastly by NiTi palatal expander-2 where Quadhelix and NiTi expander-2 showed almost similar performance.

Authors and Affiliations

Romina M. Kapadia, Bhavnit R. Vaghani, Aakash M. Shah

Keywords

Related Articles

Patient’s expectations of orthodontic treatment at first visit

Objectives: To access the patient’s expectations of orthodontic treatment at first visit. Design: A questionnaire survey of 120 adolescent patients attending for their first consultation. In the Department of Orthodontic...

Invivo and invitro tensile properties of orthodontic elastomeric chains – A comparative study

Aim: This study was to evaluate the permanent elongation and tensile strength of elastomeric chains in vivo and in vitro of three commonly available brands. Materials and Method: Two types (open & closed chains) of three...

The changes in shear bond strength due to repeated bonding - an in vitro study

Orthodontist face a range of problems during treatment, one commonly being bracket failure. The reason for this occurrence is usually either because of the patient’s inadvertently applying improper forces to the bracket...

The effects of non-extraction fixed orthodontic treatment on the vertical mandibular bone level

Background: The purpose of this study is to investigate the effects of non-extraction fixed orthodontic treatment on the vertical mandibular alveolar bone level. Methods: This study examined 49 patients who had been trea...

Body Dysmorphic Disorder (BDD) and the Orthodontist

For patients seeking orthodontic treatment body image plays a significant role. But sometimes, some patients are excessively concerned about and preoccupied by a perceived defect in his or her physical features (body ima...

Download PDF file
  • EP ID EP304844
  • DOI 10.18231/2455-6785.2017.0030
  • Views 79
  • Downloads 0

How To Cite

Romina M. Kapadia, Bhavnit R. Vaghani, Aakash M. Shah (2017). Comparative evaluation of dental, dentoalveolar and skeletal effects of slow maxillary expansion using Jackscrew, Quadhelix and Niti palatal expander2 on a finite element model of a young skull. IP Indian Journal of Orthodontics and Dentofacial Research, 3(3), 154-162. https://europub.co.uk/articles/-A-304844