Giuseppe Siciliani

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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)
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)
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)
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 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)
INTRODUCTION In this study, we aimed to analyze the displacement field and the level of stability for a human mandible that had symphyseal distraction osteogenesis. The mandible was fitted with various orthodontic devices: tooth borne, bone borne, and hybrid. Three-dimensional nonlinear finite element analyses were performed to study differences between the(More)
Class II molar relationships can be corrected by several methods. In previous systems, orthodontic forces have been applied to crowns and distal movement of the first molar has mainly been by tipping and a rotation of the crowns. A new Lingual Distalizer (LD) has recently been developed to distalize the maxillary molars without the drawbacks of previous(More)
INTRODUCTION Many authors have examined the surgical bone treatment of cleft palate patients, but no study has emphasized the role of orthodontic therapy. The aims of this study were to evaluate the long-term stability of bone grafts when using an orthodontic-surgical protocol, to determine the success of bone grafts in minor vs severe clefts, and to(More)
OBJECTIVES To investigate and compare the characteristics of commonly used types of traditional and heat-activated initial archwire by plotting their load/deflection graphs and quantifying three suitable parameters describing the discharge plateau phase. MATERIALS AND METHODS Forty-eight archwires (22 nickel titanium [NiTi] and 26 heat-activated) of(More)