Home Subscription Services

World Journal of Orthodontics
WJO Home Page
About the Editor
Editorial Board
Reprints / Articles
Quintessence Publishing: Journals: ORTHODONTICS
The Art and Practice of Dentofacial Enhancement

Formerly World Journal of Orthodontics

Edited by
Rafi Romano, DMD, MSc (Editor-in-Chief)

ISSN 2160-2999 (print) / ISSN 2160-3006 (online)

Visit the ORTHODONTICS: The Art and Practice of Dentofacial Enhancement Facebook page

Winter 2000
Volume 1 , Issue 2

Share Abstract:

Skeletal Class II Case with Retrognathic Mandible and Temporomandibular Dysfunction: Orthodontic Treatment Without Headgear

Etsuko Kondo, DDS, DDSc, T. J. Aoba, DMD, DDS

Pages: 173-186

Aim: To highlight the effectiveness of orthodontic treatment without headgear through the case records of a patient with a Class II, Division 2 malocclusion and temporomandibular dysfunction. Methods: A 10 1/2-year-old Japanese female patient with a skeletal Class II, Division 2 malocclusion and temporomandibular dysfunction is presented. Mandibular growth and movement have been apparently restricted by severely retroclined maxillary and mandibular incisors together with abnormal masticatory and other perioral muscle function. This has resulted in a disharmonious development of the maxillofacial skeleton, morphologic abnormalities, and asymmetries of the temporomandibular joint (TMJ) structures, including condyles, fossae, and rami, and particularly aberrant right and left vertical TMJ dimensions with displacement of the condyles and discs. Function was adversely affected, inducing TMJ symptoms. Essential requisites of early treatment were creating optimal occlusal contact and smooth jaw movement as well as correcting mandibular position with adequate posterior support and anterior guidance. A removable appliance was used for the phase 1 treatment to alleviate the TMJ symptoms and to correct interferences in the posterior segments. In the phase 2 treatment, the patient was treated by removal of 4 premolars with the Begg technique without headgear. The Begg technique and short Class II and vertical elastics in the posterior area were used to establish a stable occlusion with normal overjet and overbite to reduce TMJ symptoms, normalize chewing muscle activity, and reconstruct the curve of Spee and functional occlusal plane by uprighting and equalizing the bilateral posterior vertical dimensions. Results: Improvement of the vertical occlusal relationship was accomplished through the increase of the posterior vertical dimension rather than by intrusion of maxillary and mandibular incisors, which were already in a correct vertical position. TMJ symptoms did not recur during the follow-up period. World J Orthod 2000;1:173-186.

Full Text PDF File | Order Article


Get Adobe Reader
Adobe Acrobat Reader is required to view PDF files.
This is a free program available from the Adobe web site.
Follow the download directions on the Adobe web site
to get your copy of Adobe Acrobat Reader.
  © 2017 Quintessence Publishing Co Inc

Home | Subscription Services | Books | Journals | Multimedia | Events | Blog
Terms of Use | Privacy Policy | About Us | Contact Us | Advertising | Help | Sitemap | Catalog