Which of the following is correct concerning tooth preparation for diastema closure with bonded porcelain restorations?
Which of the following is correct concerning tooth preparation for diastema closure with bonded porcelain restorations?A . Keep all margins supragingival or equigingivalB . Full crown preparations are best used to close spacesC . Subgingival interdental margins will allow for improved emergence profilesD . Mini-wings must always be used to...