Michael W. Roberts

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Ectodermal dysplasias (ED) are a heterogeneous group of inheritable disorders characterized by abnormal development of embryologic ectoderm derivatives. The purposes of this study were to: 1) create baseline cephalometric norms for male children with ED; 2) assess craniofacial growth and development in hypohidrotic ED male children with severe hypodontia,(More)
BACKGROUND Amelogenesis imperfecta (AI) is a hereditary dental condition with poor esthetics and dental sensitivity that frequently requires extensive dental treatment. The authors hypothesized that AI is associated with a negative psychosocial outcome. METHODS Family members with and without AI completed a questionnaire including demographic and dental(More)
PURPOSE The purpose of this in vitro study was to evaluate microleakage of pit and fissure sealants after using three different pit and fissure preparation techniques: (1) traditional pumice prophylaxis and acid etching, (2) fissure enameloplasty and acid etching and (3) air abrasion and acid etching. METHODS Sixty extracted third molars with no clinical(More)
UNLABELLED The purpose of this cross-sectional study was to examine whether children with attention-deficit/hyperactivity disorder (ADHD) had a total caries experience that was equivalent to children without the disorder. METHODS The test sample included children ages 6 to 10 years old diagnosed with ADHD by physicians at Duke University Medical Center.(More)
Cystic fibrosis (CF) is the most common severe genetic disorder seen in Caucasians. Defective exocrine gland secretions result in chronic diseases of the respiratory and gastrointestinal systems. However, the CF gene recently has been located and cloned. Currently, genetic technology allows identification of sibling carriers and antenatal diagnosis within(More)
The mucopolysaccharidoses (MPS) are a group of genetic lysosomal storage diseases. These diseases result from a defect in specific lysosomal enzymes required for the degradation of specific mucopolysaccharides. These incompletely degraded saccharides accumulate in tissues and are excreted in the urine. A general characteristic of these diseases is(More)
PURPOSE The objective of this study was to assess the pattern of permanent teeth present in a self-selected sample of 17 female and 35 male patients with ectodermal dysplasia presenting for treatment with dental implants. METHODS Mean age of sample: 18.7 years, age range: 5.9 to 60.9 years. Panoramic radiographs were examined independently by two(More)
Self-injurious behavior occurs in conjunction with a variety of psychiatric disorders as well as various developmental disabilities and some syndromes. The behavioral and biochemical aspects of self-injurious behavior are poorly understood and several etiologies have been suggested. Treatments for self-injurious behavior in developmentally disabled(More)
Mail-in pilot-tested questionnaires were sent to a stratified random sample of 1,500 families from the North Carolina Autism Registry. Multivariate logistic regression analysis was used to determine the significance of unmet dental needs and other predictors. Of 568 surveys returned (Response Rate = 38%), 555 were complete and usable. Sixty-five (12%)(More)