In the simple linear regression model, we used a continuous outcome (days to align) and a single continuous predictor (irregularity index). The flexibility of the multiple regression model allows us…
A reader wrote me the following. Larry, do you have any insight into the gray area dealing with the transition from phase 1 (early treatment) to phase 2 (secondary treatment)?…
Introduction Although rapid maxillary expansion has been extensively studied in noncleft patients, scarce evidence of maxillary effects is found for patients with oral clefts. Our objective was to evaluate the…
Asymmetries are among the most challenging problems in orthodontics. Proper diagnosis is critical to discern first whether the asymmetry is dental or skeletal. If it is dental, one must then…
Introduction Mandibular retrognathism may be the result of a developmental abnormality or the unfavorable positional relationship of developing jaws. Several lines of evidence suggest that muscles are known to have…
Introduction Tumor necrosis factor alpha (TNF-α) levels are significantly upregulated in the synovial fluid of patients with temporomandibular joint disorder (TMD). The TNF-α influences pain generation and maintenance. Therefore, the…
Introduction Pharynx dimensions may vary according to the position and morphology of the mandible. The aim of this study was to test the hypothesis that craniofacial morphology affects pharyngeal volume…
Introduction The aims of this study were to evaluate how head orientation interferes with the amounts of directional change in 3-dimensional (3D) space and to propose a method to obtain…
Introduction The purposes of this study were to assess the effects of maxillary protraction therapy on the pharyngeal airways in patients with repaired unilateral cleft lip and palate (UCLP) 3…
Introduction The objective of this study was to evaluate the accuracy and reliability of measurements on digital models obtained by scanning impressions 5, 10, and 15 days after they were made…
