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VOLUME 19 , ISSUE 10 ( 2018 ) > List of Articles


Effect of Rapid Maxillary Expansion on Condyle–fossa Relationship in Growing Patients

Robert Garcia, Ghassan Sleilaty, Khaldoun Rifai

Keywords : Condyle–fossa relationship, Cone-beam computer tomograph, Interglenoid fossa, Rapid maxillary expansion.

Citation Information : Garcia R, Sleilaty G, Rifai K. Effect of Rapid Maxillary Expansion on Condyle–fossa Relationship in Growing Patients. J Contemp Dent Pract 2018; 19 (10):1189-1198.

DOI: 10.5005/jp-journals-10024-2404

License: CC BY-NC 3.0

Published Online: 01-08-2018

Copyright Statement:  Copyright © 2018; The Author(s).


Aim: This study tests whether rapid maxillary expansion (RME) exerts long term effects on interglenoid fossa distance and condyle fossa relationship. Materials and methods: Consecutive growing patients aged 8 to 13 years were allocated either to the RME group or control group. Cone-beam computed tomography was performed at baseline and at 6 months. Specific software was used to determine fixed landmarks. Multivariate Analysis of Covariance (MANCOVA) models were used, with time by group interaction, using age as a covariate. Results: Twenty-seven patients with a mean age of 11.4 ± 1.5 years were included. There was an overall significant group by time interaction (p = 0.012, effect size 0.59). Change in the lateral position of the glenoid fossa, the primary outcome, was reached (p = 0.008, effect size 0.258). Change in the laterolateral position of the center of the condyle, and the co-primary outcome was also significant (p = 0.011, effect size = 0.24). Nasal cavity width increased (p = 0.065, effect s ize = 0.14). There was aninitial a symmetry in the horizontal position of the condyles that was carried on with no effect of RME. Conclusion: Rapid maxillary expansion (RME) produces a significant increase in the interglenoid fossa distance and displacement of the mandibular condyles at 6 months in growing patients compared to a control group. Clinical significance: The current study shows that RME is effective during growth, widening the interglenoid fossa distance and the lateral positions of the condyles and eventually enlarging the nasal cavity, without causing asymmetry.

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  1. Haas AJ. Palatal expansion: just the beginning of dentofacial orthopedics. Am J Orthod. 1970;57(3):219-255.
  2. Haas AJ. Rapid expansion of the maxillary dental arch and nasal cavity by opening the midpalatal suture. Angle Orthod. 1961;31:73-90.
  3. Bishara SE, Staley RN. Maxillary expansion: clinical implications. Am J Orthod Dentofac Orthop Off Publ Am Assoc Orthod Its Const Soc Am Board Orthod. 1987;91(1):3-14.
  4. Bazargani F, Jonson-Ring I, Neveus T. Rapid maxillary expansion in therapy-resistant enuretic children: An orthodontic perspective. Angle Orthod. 2016;86(3):481-486.
  5. Kumar PS. Diversity of Oral Biofilms in Periodontal Health and Disease. Pathogenesis of Periodontal Diseases [Internet]. Springer International Publishing; 2017 Jul 12;9.20.
  6. Ta.pinar F, Ucuncu H, Bishara SE. Rapid maxillary expansion and conductive hearing loss. Angle Orthod. 2003;73(6):669- 673.
  7. Bell RA, LeCompte EJ. The effects of maxillary expansion using a quad-helix appliance during the deciduous and mixed dentitions. Am J Orthod. 1981;79(2):152-161.
  8. Timms DJ. A study of basal movement with rapid maxillary expansion. Am J Orthod. 1980;77(5):500-507.
  9. Leonardi R, Sicurezza E, Cutrera A, Barbato E. Early posttreatment changes of circumaxillary sutures in young patients treated with rapid maxillary expansion. Angle Orthod. 2011;81(1):36-41.
  10. Melgaco CA, Columbano Neto J, Jurach EM, Nojima M da CG, Nojima LI. Immediate changes in condylar position after rapid maxillary expansion. Am J Orthod Dentofac Orthop Off Publ Am Assoc Orthod Its Const Soc Am Board Orthod. 2014;145(6):771-779.
  11. Oberheim MC, Mao JJ. Bone strain patterns of the zygomatic complex in response to simulated orthopedic forces. J Dent Res. 2002;81(9):608-612.
  12. McLeod L, Hernandez IA, Heo G, Lagravere MO. Condylar positional changes in rapid maxillary expansion assessed with cone-beam computer tomography. Int Orthod. 2016;14(3):342-356.
  13. Hesse KL, Artun J, Joondeph DR, Kennedy DB. Changes in condylar postition and occlusion associated with maxillary expansion for correction of functional unilateral posterior crossbite. Am J Orthod Dentofac Orthop 1997;111(4):410-418.
  14. Kecik D, Kocadereli I, Saatci I. Evaluation of the treatment changes of functional posterior crossbite in the mixed dentition. Am J Orthod Dentofac Orthop 2007;131(2):202-215.
  15. Arat FE, Arat ZM, Tompson B, Tanju S, Erden I. Muscular and condylar response to rapid maxillary expansion. Part 2: magnetic resonance imaging study of the temporomandibular joint. Am J Orthod Dentofac Orthop 2008;133(6):823-829.
  16. I.eri H, Tekkaya AE, Oztan O, Bilgic S. Biomechanical effects of rapid maxillary expansion on the craniofacial skeleton, studied by the finite element method. Eur J Orthod. 1998;20(4):347-356.
  17. Jafari A, Shetty KS, Kumar M. Study of stress distribution and displacement of various craniofacial structures following application of transverse orthopedic forces--a threedimensional FEM study. Angle Orthod. 2003;73(1):12-20.
  18. Priyadarshini J, Mahesh CM, Chandrashekar BS, Sundara A, Arun AV, Reddy VP. Stress and displacement patterns in the craniofacial skeleton with rapid maxillary expansion-a finite element method study. Prog Orthod. 2017;18(1):17.
  19. Sayegh-Ghoussoub M. Effect of rapid xaxillary expansion on glenoid fossa and condylar position in growing patients. [Internet]. Springer Nature; 2017 Nov 7.
  20. Primo. i. J, Richmond S, Kau CH, Zhurov A, Ovsenik M. Three-dimensional evaluation of early crossbite correction: a longitudinal study. Eur J Orthod. 2013;35(1):7-13.
  21. Faul F, Erdfelder E, Lang A-G, Buchner A. G*Power 3: a flexible statistical power analysis program for the social, behavioral, and biomedical sciences. Behav Res Methods. 2007;39(2):175-191.
  22. Lin LI. A concordance correlation coefficient to evaluate reproducibility. Biometrics. 1989;45(1):255-268.
  23. Lagravere MO, Low C, Flores-Mir C, et al. Intraexaminer and interexaminer reliabilities of landmark identification on digitized lateral cephalograms and formatted 3-dimensional cone-beam computerized tomography images. Am J Orthod Dentofac Orthop 2010;137(5):598-604.
  24. Isaacson R, Ingram A. Forces produced by rapid maxillary expansion. Part II. Forces present during treatment. Angle Orthod. 1964;34:261-270.
  25. Isaacson R, Wood J, Ingram A. Forces produced by rapid maxillary expansion. Part I. Design of the force measuring system. Angle Orthod. 1964;34:256.260.
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