In the last 25 years, alloys for prosthodontic restorations have become increasingly complex, with numerous choices from global companies. Today's alloys contain metals such as gold, palladium, silver, nickel, cobalt, and titanium as their primary element. The metallurgy of each of these alloy systems is intricate and demanding for both the laboratory and the dentist. Proper selection and manipulation of these alloys are critical for ensuring the longevity and optimal performance of dental prostheses. Failure to select or manipulate alloys correctly can lead to the failure of expensive restorations. Therefore, it is essential to understand the use of dental alloys and various crown fabrication techniques. This book aims to provide an in-depth understanding of these topics to assist dental professionals in making informed decisions regarding alloy selection and manipulation.