João Paulo Fragomeni Stella

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The Childhood Autism Rating Scale (CARS) was factor analyzed to determine if distinct and independent "subgroups" of symptoms could be derived, which would be consistent with the current multidimensional theory and nosology for autism. To address this issue, the CARS was factor analyzed for a sample of 90 children with diagnoses of either autism or PDDNOS,(More)
The purpose of this study was to evaluate the changes in condylar position following bilateral sagittal split ramus osteotomy with 5- and 10-mm setback in 1 symmetric human cadaver mandibles. A Plexiglas device was constructed to determine the mandibular morphology and the movements of the condyle and the proximal segments before and after surgery. There(More)
Ten patients underwent bilateral sagittal split ramus osteotomy for the correction of mandibular retrognathia. Prior to the surgery, predictive cephalometric tracings were completed, utilizing horizontal and vertical reference guides. The anticipated horizontal and vertical changes were determined from the predictive tracings, and these results were(More)
The dental literature recognizes that performing sagittal ramus osteotomy when impacted third molars are present significantly increases the risk of unfavorable fractures of both the proximal and distal segments. Many articles have described how to repair unfavorable fractures of sagittal split segments, but few to date specifically address how to modify(More)
This study was done to determine those abnormal cephalometric features found in adult cleft lip and palate patients. The sample population consisted of 30 randomly selected white patients with cleft lip and palate who were treated by the same team that had been accredited by the American Cleft Palate-Craniofacial Association. Twenty patients had unilateral(More)
OBJECTIVE To assess four different chemical surface conditioning methods for ceramic material before bracket bonding, and their impact on shear bond strength and surface integrity at debonding. METHODS Four experimental groups (n = 13) were set up according to the ceramic conditioning method: G1 = 37% phosphoric acid etching followed by silane(More)
The purpose of this study was to investigate the predictability of using the inferior medial canthus as a stable external reference point for establishment of the vertical dimension in maxillary orthognathic surgery. Ten consecutive patients with skeletal Class II malocclusion and open bite who underwent orthognathic reconstructive surgery were included in(More)
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