Lithium Disilicate Crowns Study

Inclusion Criteria

• •Patients will be at least 18 years of age, of either gender, and of any ethnic background.
• •Each patient should have at least one carious lesion or defective restoration to be restored on a maxillary or mandibular premolar or molar tooth.
• •Each lesion or defective restoration should exhibit sufficient size or loss of tooth structure requiring a full crown restoration.
• •The tooth should have at least one opposing tooth in occlusion and one adjacent tooth with an intact proximal contact.
• •All teeth will test vital and be asymptomatic at the beginning of treatment. No more than two restorations will be placed per patient.