Cyril Sadowsky

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This study assessed the frequency of root resorption and alveolar bone loss in 88 adults who had undergone orthodontic treatment. Pretreatment and posttreatment periapical radiographs were used to determine the amount of external apical root resorption and alveolar bone loss of the maxillary and mandibular incisors. Alveolar bone loss in the posterior(More)
The purpose of this investigation was to compare the effectiveness and duration of orthodontic treatment in adults and adolescents with a valid and reliable occlusal index. Another aim was to evaluate variables that may influence the effectiveness and duration of orthodontic treatment in general. Pretreatment and posttreatment study models were scored using(More)
A sample of 22 previously treated orthodontic cases was studied to evaluate long-term stability. All cases were treated nonextraction with fixed edgewise appliances and were without retainers a minimum of 5 years. Data were obtained from study models, although 14 of the 22 cases had longitudinal cephalometric radiographs. The average retention time with a(More)
The purpose of this retrospective study was to determine if condylar position in children with functional unilateral crossbites was different from that found in children with Class I noncrossbite malocclusions and if there was a change in condylar position after correction of the crossbite by palatal expansion. Mandibular asymmetry in children with(More)
The periodontal health of a group of ninety-six patients who had received comprehensive fixed-appliance orthodontic treatment during adolescence between 12 and 35 years previously was evaluated. Comparisons were made with a group of 103 adults who were similar with regard to race, sex, age, socioeconomic status, dental awareness, and oral hygiene status but(More)
INTRODUCTION The purposes of this study were to determine whether the American Board of Orthodontics objective grading system (ABO OGS) can be assessed accurately from digital dental casts and whether there are statistical differences between digital and plaster dental casts in scoring the ABO OGS. METHODS Thirty posttreatment plaster dental casts were(More)
The long-term stability of orthodontic treatment was evaluated in a group of ninety-six former patients who were treated between 12 and 35 years previously. Dental relationships were recorded on study models taken prior to orthodontic treatment, at the end of active treatment, and at long-term follow-up. A malocclusion score was developed for this study,(More)
A retrospective study was conducted to determine whether mandibular symmetry in adults with untreated unilateral posterior crossbite was different from that found in adults with untreated Class I malocclusions. Thirty adults, 18 years or older, with a unilateral posterior crossbite were compared with 30 adults exhibiting Angle Class I malocclusions.(More)