Document Detail

Factors related to alveolar bone thickness during upper incisor retraction.
MedLine Citation:
PMID:  23043245     Owner:  NLM     Status:  Publisher    
Abstract Objective: To investigate the factors related to changes in alveolar bone thickness during upper incisor retraction. Materials and Methods: The subjects consisted of 23 ongoing orthodontic patients (mean age 20.4 ± 2.7 years) whose upper incisors were bound for retraction. Changes in alveolar bone thickness in the retracted area were assessed using preretraction (T(0)) and postretraction (T(1)) cone-beam computed tomography images. Labial bone thickness (LBT), palatal bone thickness (PBT), and total bone thickness (TBT) were assessed at the crestal, midroot, and apical levels of the retracted incisors. Paired t-tests were used to compare T(0) and T(1) bone thickness measurements. Spearman's rank correlation analysis was performed to determine the relationship of changes in alveolar bone thickness with the rate of tooth movement, change in inclination, initial alveolar bone thickness, and the extent of intrusion. Results: As the upper incisors were retracted, the LBT at the crestal level and TBT at the apical level significantly increased (P < .005). Changes in alveolar bone thickness were significantly associated with the rate of tooth movement, change in inclination, and extent of intrusion (P < .05) but not initial alveolar bone thickness (P > .05). Conclusion: Rate of tooth movement, change in inclination, and extent of intrusion are significant factors that may influence alveolar bone thickness during upper incisor retraction. These factors must be carefully monitored to avoid the undesirable thickening of alveolar bone.
Nuengrutai Yodthong; Chairat Charoemratrote; Chidchanok Leethanakul
Related Documents :
8236745 - Evaluation of bone-wax extract on the frequency of chromosomal aberrations in the bone ...
3757375 - Caisson disease of bone.
17472185 - Comparison of efficiency of platelet rich plasma, hematopoieic stem cells and bone marr...
20661545 - Effects of risedronate on bone marrow adipocytes in postmenopausal women.
20684925 - Ring and little finger metacarpal fractures: mechanisms, locations, and radiographic pa...
8548435 - Shoulder function after displaced fractures of the proximal humerus.
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-10-8
Journal Detail:
Title:  The Angle orthodontist     Volume:  -     ISSN:  1945-7103     ISO Abbreviation:  Angle Orthod     Publication Date:  2012 Oct 
Date Detail:
Created Date:  2012-10-9     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0370550     Medline TA:  Angle Orthod     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
a Graduate student, Orthodontic Section, Department of Preventive Dentistry, Faculty of Dentistry, Prince of Songkla University, Hat Yai, Songkhla, Thailand.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  The association between orthodontic treatment with removal of premolars and the angulation of develo...
Next Document:  6,6-Dicyanopentafulvenes: Electronic Structure and Regioselectivity in [2+2] Cycloaddition-Retroelec...