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

Fall 2005
Volume 6 , Issue 3

Share Abstract:

Clinical outcome with mandibular second versus first premolar extractions in orthodontic treatment

Bjorn U. Zachrisson

PMID: 16164114

The posttreatment anteroposterior position of the mandibular incisors apparently can influence the facial profile. According to Holdaway, the most frequent comment heard in criticism of orthodontics comes from parents of prospective patients who do not like the changes in upper lip position that they have observed in some orthodontically treated patients. Since there is a relationship between root surface area and anchorage potential, the choice of which mandibular teeth to be extracted may have a direct effect on the amount of anterior segment retraction.

The extraction of 2 mandibular premolars usually gives more than enough space to align the mandibular incisors. Orthodontic closure of the residual space may result in the retraction of the mandibular anterior segment. This retraction may be favorable in the orthodontic treatment of Class III malocclusion, whereas it is usually unfavorable in Class II malocclusions. There is little information available on prediction of the amount of incisor retraction that can be expected during the closure of the mandibular premolar extraction spaces, and on the difference between the outcome with extraction of the first or second premolars.

Do we have any reliable predictions and recommendations concerning the treatment results following extractions of mandibular second versus first premolars when it comes to: (1) amount of mandibular incisor retraction; (2) long-term stability of the treatment results; (3) profile changes?—José M. Llamas, Sevilla, Spain

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