An inactive precursor that is converted to active enzyme by the action of another substance. Called also proenzyme. Inactive form...

A root‐form dental implant that has its origin in the region of the former first maxillary molar. Its endpoint engages...

The area formed by the union of the zygomatic bone with the zygomatic processes of the temporal and maxillary bones....

Zirconium.  

A very potent intravenous nitrogen‐containing bisphosphonate used to prevent skeletal fractures in patients with cancers such as multiple myeloma and...

Ceramic material used for implant components, with excellent mechanical properties. It is used in situations where esthetics are of primary...

Zirconia. White crystalline oxide of zirconium occurring in nature as the mineral baddeleyite. It is an amorphous, odorless, tasteless powder...

A steel‐gray hard ductile metallic element with a high melting point that occurs widely in combined forms. It is highly...

A ceramic post used instead of metal posts in the restoration of endodontically treated teeth. The ceramic material is preferred...

Posterior denture teeth having flat planes or zero‐degree cusp angles relative to the horizontal occlusal surface of the tooth.