Estimates of the Distribution of Selected Major Components of Occlusion Among Children, the Prevalence of Degrees of Malocclusion, the Average Treatment Priority Index Per Child by Age, Sex, Race, Family Income, Parent's Education, and Region of Residence, and a Brief Analysis of the Relationship of Occlusal Status with Thumbsucking and a Reported Need for Orthodontic Care, the Average Treatment Priority Index Per Child by Age, Sex, Race, Family Income, Parent's Education, and Region of Residence, and a Brief Analysis of the Relationship of Occlusal Status with Thumbsucking and a Reported Need for Orthodontic Care