The Significance of the Curve of Spee in Orthodontic Treatment
Author : Arnold J. Hirsh
Publisher :
Page : 26 pages
File Size : 42,62 MB
Release : 1955
Category :
ISBN :
Author : Arnold J. Hirsh
Publisher :
Page : 26 pages
File Size : 42,62 MB
Release : 1955
Category :
ISBN :
Author : Evonne Ann Kinowski
Publisher :
Page : pages
File Size : 21,53 MB
Release : 1991
Category : Orthodontics
ISBN :
Author : Johannes Hattingh
Publisher :
Page : 0 pages
File Size : 10,58 MB
Release : 2003
Category : Occlusion (Dentistry)
ISBN :
Author : Donald H. Enlow
Publisher : W.B. Saunders Company
Page : 584 pages
File Size : 25,39 MB
Release : 1990
Category : Medical
ISBN :
Author : Tian Min Xu
Publisher : Springer
Page : 267 pages
File Size : 11,18 MB
Release : 2017-03-02
Category : Medical
ISBN : 3319483331
This book provides a comprehensive introduction to physiologic anchorage control, explains the implications for clinical practice, and presents an anchorage technique applicable for the treatment of different malocclusions. The concept of physiologic anchorage control is derived from observations of upper molar movement during growth in adolescence, including in the absence of orthodontic treatment, which indicate that molar forward displacement comprises two components: the first due to biologic force or physiologic anchorage loss and the second due to orthodontic force or mechanical anchorage loss. All previous anchorage methods have been based on the assumption that molar anchorage loss is to be attributed solely to the mechanical force used to retract anterior teeth, and the new concept represents a paradigm shift of clinical significance. This book explores the pattern of upper molar growth in depth, highlights the physiologic significance of the curve of Spee, and analyzes the biomechanics of physiologic anchorage control. An anchorage control system that fully takes into account the latest conceptual insights is described and its clinical use and utility, examined.
Author : John P. Bolthouse
Publisher :
Page : 112 pages
File Size : 50,24 MB
Release : 1971
Category : Cephalometry
ISBN :
Author : Ping-Hsiang Kuo
Publisher :
Page : 0 pages
File Size : 23,8 MB
Release : 2021
Category :
ISBN :
Purpose: To perform a retrospective study with the question: Is there a significant correlation between pre-surgical Curve of Spee (COS) and skeletal changes from mandibular bilateral sagittal split osteotomy (BSSO) advancement surgery? Furthermore, in skeletal Class II patients, does initial mandibular plane angle (MPA) make a difference? Methods: The sample was made up of a group of patients who underwent a single surgical procedure of mandibular BSSO advancement and divided into three groups by mandibular plane angle (MPA). Pre-surgical Curve of Spee (COS) was measured on digital dental models and correlated with skeletal changes from pre-surgical and post-surgical cephalograms using Spearman rank-order analysis. Paired T-test was utilized to identify statistical significance. Regression analysis was performed to estimate the cephalometric change per unit of pre-surgical COS. P-value was set at 0.05. Results: The sample was composed of 90 subjects; divided into 3 groups: (1) high-MPA (MPA 34.10 ± 3.23°; aged 26.28 ± 17.66 years; n = 30) (2) medium-MPA (MPA 27.85 ± 1.61°; aged 22.04 ± 11.40 years; n = 30) (3) low-MPA (MPA 20.91 ± 3.20°; aged 26.84 ± 15.58; n = 30). Statistical significance was found between pre-surgical Curve of Spee (COS) and both linear and percentage changes of lower face height (LFH) in the low-MPA group (p
Author : Ravindra Nanda
Publisher : W.B. Saunders Company
Page : 248 pages
File Size : 21,85 MB
Release : 1993
Category : Medical
ISBN :
Author : Kyle R. Shannon
Publisher :
Page : 226 pages
File Size : 36,62 MB
Release : 2000
Category : Cephalometry
ISBN :
Author : Russell Sterling Barnett (Jr.)
Publisher :
Page : 53 pages
File Size : 17,77 MB
Release : 1966
Category :
ISBN :