The maximum class size for those students whose special education needs consist primarily of the need for specialized instruction which can best be accomplished in a self-contained setting cannot exceed 15 students (15:1), or 12 students in a State-operated or State-supported school (12:1), except that:
The permanent crown will fit, look, and feel better than the temporary after all the proper and necessary adjustments has been made. Most dentists will check your bite when the temporary is out and again when the permanent crown is in place (not cemented yet). The two should feel the same.
The crown of the tooth is the part you can see in your mouth, above the gum line, while the root of the tooth is hidden below the gum line. The roots are embedded in a socket (a hole) in the jaw bone, along with connective tissues that keep the tooth set firmly in the bone.