The crowns were cemented to standardized chromium cobalt metal dies. Each die was placed in to a custom holder on the Instron Universal testing machine. A post-hoc test was then performed to ascertain where these differences occurred. These results, using Tukey's studentized range test for pairwise comparisons, suggested that the only difference was between the Cheng and Whiter Biter manufacturers. Maxillary canine impaction in patients with transverse maxillary deficiency.
Extensive literature exists concerning impacted maxillary canines.
No studies exist documenting transverse maxillary deficiency as a causative factor for impacted canines. The purpose of this study was to determine whether patients with impacted maxillary canines have transverse deficiency and if other factors, such as arch length, arch perimeter, and arch form contribute to canine impaction. The experimental and control groups were compared using a Z test and Chi-square analysis. Coronal resorption of maxillary canines is a possible complication of long standing impaction. Degeneration of the enamel epithelium allows the connective tissues to come into direct contact with enamel.