Hounsfield unit change in root and alveolar bone during canine retraction

Feifei Jiang, Sean S Y Liu, Zeyang Xia, Shuning Li, Jie Chen, Katherine S. Kula, George Eckert

Research output: Contribution to journalArticle

5 Scopus citations

Abstract

Introduction The objective of this study was to determine the Hounsfield unit (HU) changes in the alveolar bone and root surfaces during controlled canine retractions. Methods Eighteen maxillary canine retraction patients were selected for this split-mouth design clinical trial. The canines in each patient were randomly assigned to receive either translation or controlled tipping treatment. Pretreatment and posttreatment cone-beam computed tomography scans of each patient were used to determine tooth movement direction and HU changes. The alveolar bone and root surface were divided into 108 divisions, respectively. The HUs in each division were measured. Mixed-model analysis of variance was applied to test the HU change distribution at the P

Original languageEnglish (US)
Pages (from-to)445-453
Number of pages9
JournalAmerican Journal of Orthodontics and Dentofacial Orthopedics
Volume147
Issue number4
DOIs
StatePublished - Apr 1 2015
Externally publishedYes

ASJC Scopus subject areas

  • Orthodontics

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