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Incisor Contact In Optimal Occlusion, Ryan Baker

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The objective of the present study was to grade the overjet of untreated plaster dental study casts with optimal occlusion utilizing the American Board of Orthodontics (ABO) Objective Grading System (OGS). Currently no data set exists for incisor contact norms in optimal occlusion. Materials and Methods: 140 Plaster dental study casts possessing optimal occlusion were utilized for this study. Study casts used were obtained from the office of Dr. Lawrence F. Andrews in San Diego, CA. The majority of the study models were those used in determining Andrews Six Keys to Normal Occlusion. Overjet was graded according to the ABO …