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dontic tooth movement and orthopedic jaw movement?” With this question in 1983, Creekmore and Eklund were the first orthodontists to suggest in print that a small metal screw could withstand a constant force of sufficient magnitude and duration to reposition an entire anterior maxillary dentition without becoming loose, painful, infected, or pathologic.1(More)
The biological response to orthodontic tooth movement has generally focused on reactions within the periodontal ligament (PDL), whereas less attention has been paid to the behavior of neighboring bone. The purpose of the study was to describe the influence of orthodontic force on bone surrounding the displaced tooth and the adjacent, untreated teeth. Bone(More)
The purpose of this study was to evaluate the most suitable region of the palate for the insertion of miniscrews. We analysed 4 different paracoronal sections of Digital Volumetric Tomographies of 52 patients with ages ranging between 10 and 15 years and measured the thickness of the palatine bone in 20 different sites. For each section we measured the(More)
INTRODUCTION The purpose of this study was to evaluate the 3-dimensional thickness of the palate to determine the best location to place miniscrews. METHODS We selected digital volumetric tomographs from 162 healthy subjects, aged 10 to 44 years (80 male, 82 female). The sample was divided into 3 groups. Group A included 52 subjects (ages, 10-15 years; 28(More)
INTRODUCTION The objective of this study was to compare the accuracy of measurements carried out using software on digital models with measurements made by hand on conventional plaster models, and to evaluate the time required for each method. METHODS Twenty orthodontists were given copies of the same plaster model and asked to carry out measurements of(More)
This preliminary report describes our evaluation of the behavior of permanent maxillary first molars subsequent to rapid maxillary expansion (RME) in the mixed dentition in crossbite and non-crossbite cases; maxillary deciduous canines and second molars were used as anchorage. The RME appliance was cemented on the maxillary deciduous second molars and(More)
The purpose of this study is to assess the aesthetic value of "buccal corridors" on smile attractiveness as judged by dentists and laypersons. In order to evaluate the aesthetic impact of the "buccal corridors", a pleasant smile (frontal view) was scanned (Scanner HP 5490C, 1200 x 1200 dpi) and modified (Adobe Photoshop 5.0) by a professional computer(More)
AIMS To determine the most suitable region of the palate for the insertion of miniscrews. METHODS The subjects were 72 adult patients between 20 and 44 years of age. The thickness of the bony palate was determined with digital volumetric tomography. Bone thickness was measured 4, 8, 16 and 24 mm posterior to the incisive foramen and 0, 3, and 6 mm lateral(More)
The purpose of this research was to evaluate changes in upper arch dimension and form following rapid maxillary expansion (RME) using a modified Haas appliance in the primary dentition. The sample comprised 49 children [17 males, 32 females, mean age 7 years 5 months, standard deviation (SD) 1 year 1 month] with a crossbite or maxillary crowding. Twenty(More)
INTRODUCTION The aim of this study was to determine the effects of variations in thread shape on the axial pullout strength of orthodontic miniscrews. METHODS A total of 35 miniscrews, 7 of each design being considered, were tested by performing pullout tests on a synthetic bone support. We used self-tapping and self-drilling miniscrews having a diameter(More)