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Influence of First Premolar Extraction on Mandibular Third Molar Angulation
Premolar extractions Third molar angulations
2009/11/30
Objective: To compare the angular changes in the developing mandibular third molars in both first premolar extraction and nonextraction cases and to determine whether premolar extraction results in a ...
Prediction of Lip Response to Four First Premolar Extractions in White Female Adolescents and Adults
Soft tissues Prediction Cephalometrics Treatment changes Adolescents Adults
2009/5/30
Objective: To develop models for predicting changes in lip position of Class I extraction patients.
Materials and Methods: Pretreatment and posttreatment lateral cephalograms of 46 white female adu...
Prediction of Lip Response to Four First Premolar Extractions in White Female Adolescents and Adults
Soft tissues Prediction Cephalometrics Treatment changes Adolescents Adults
2009/5/30
Objective: To develop models for predicting changes in lip position of Class I extraction patients.
Materials and Methods: Pretreatment and posttreatment lateral cephalograms of 46 white female adu...
First Premolar or Second Premolar Extractions：Formula or Clinical Judgment?
First Premolar Second Premolar Extractions Clinical Judgment
2009/3/8
First Premolar or Second Premolar Extractions: Formula or Clinical Judgment?
Effect of Extraction in the Early Mixed Dentition on the Eruption of the First Premolar in Macaca Nemestrina
Early Mixed Dentition First Premolar Macaca Nemestrina
2009/3/5
Effect of Extraction in the Early Mixed Dentition on the Eruption of the First Premolar in Macaca Nemestrina.
Effect of Extraction in the Late Mixed Dentition on the Eruption of the First Premolar in Macaca Nemestrina
Extraction First Premolar Macaca Nemestrina
2009/3/5
Effect of Extraction in the Late Mixed Dentition on the Eruption of the First Premolar in Macaca Nemestrina.
The effect of mandibular first premolar extraction on third molar space
Premolar extraction Molar space Crowding
2009/1/23
Change in molar space is compared in 48 mandibular first premolar extraction cases and 46 non-extraction cases over a five year period. Significantly greater increase in molar space is found in extr...
A comparison of the effects of first premolar extractions on third molar angulation
Third molar Premolars Extractions Angulations
2009/1/13
The effect of third molars on the stability of orthodontic treatment has been studied extensively. Yet the effect of orthodontic treatment, particularly premolar extractions, on third molars has n...
Physiologic drift of the mandibular dentition following first premolar extractions
Physiological drift Extraction therapy Cephalometrics Growth Mandible
2009/1/12
A retrospective study of two groups of patients was conducted to evaluate the physiologic drift, or “driftodontics”, of the mandibular teeth following the extraction of four first premolars. Group 1...
Maxillary canine - first premolar transposition, associated dental anomalies and genetic basis
Tooth eruption ectopic Tooth abnormalities Genetics Hypodontia Malocclusion
2009/1/12
Maxillary canine - first premolar (Mx.C.P1) transposition, an uncommon dental anomaly involving positional interchange of the two teeth, was studied using a sample of 43 subjects with the abnormal...
Early versus late treatment of crowded first premolar extraction cases：Postretention evaluation of stability and relapse
Postretention Relapse Stability Early orthodontic treatment Late orthodontic treatment
2009/1/7
The purpose of this study was to evaluate the differences in the long-term stability of orthodontically induced changes in arch form between patients who receive early orthodontic treatment (Hellm...
An Orthodontic Case of Transposition of the Upper Right Canine and First Premolar
Tooth transposition Dental substitution Congenitally missing Orthodontic management
2008/12/26
Tooth transposition is a rare and severe positional anomaly that may create many orthodontic problems from both esthetic and functional points of view. In this report, we describe a case of the or...
The Effects of First Premolar Extractions on Third Molar Angulations
Premolar extraction Nonextraction Orthodontic treatment Third molar angulation
2008/11/20
The purpose of this study was to determine the relationship between the inclinations of second and third molars during a two- to 2.5-year period in patients treated orthodontically both with and wit...
Unilateral Horizontally Impacted Maxillary Canine and First Premolar Treated with a Double Archwire Technique
Impacted canine Impacted premolar Horizontal impaction Double archwire
2008/11/19
A patient with a unilateral horizontally impacted upper left canine and first premolar was treated orthodontically. The use of a double archwire technique achieved the desired treatment goals. We disc...
Maxillary Canine—First Premolar Transposition
Transposition Corrective orthodontics Segmented mechanics
2008/11/3
Tooth transpositions present at a relatively low incidence in the world population and primarily affect maxillary canines and premolars. Treatment of this disturbance should take into account aspects ...