Assessment of Posterior Teeth Preparations for Metal-Ceramic Crowns.

OBJECTIVES: To evaluate teeth preparation designs for metal-ceramic crowns in private dental practice in Jordan. MATERIALS AND METHODS: One-hundred and seventy two dies were included. Different aspects of tooth preparations were quantified, analyzed and compared with the recommended guidelines. RESULTS: Almost 64% of preparations finish lines were positioned subgingivally. Shoulder finish lines were observed in 74.4% where-as 22.7% showed chamfer finish lines. Total occlusal convergence angles were 29.8 degrees in BL plane, 247 degrees in MD plane. CONCLUSIONS: Dental practitioners in private practice in Jordan did not fully adhere to the recommendedguidelines for tooth preparations for MCRs.