e.max
Pronunciation: /iː mæks/
A brand-name lithium disilicate glass-ceramic system widely used in dental laboratories for pressed and CAD/CAM-milled restorations, noted for its high strength and aesthetics.
Full Definition
IPS e.max (manufactured by Ivoclar Vivadent) is the leading commercial lithium disilicate glass-ceramic used for fabricating anterior and posterior single-unit crowns, veneers, inlays, and onlays. It is available in two forms: e.max Press (for heat-pressed technique) and e.max CAD (for milling then crystallisation firing). Lithium disilicate restorations are valued for combining high flexural strength (approximately 400 MPa for CAD) with excellent translucency. Editors must render the brand name correctly as 'e.max' (lowercase 'e', full stop, lowercase 'max'); 'E-Max,' 'Emax,' and 'E.Max' are non-standard and should be corrected. The prefix 'IPS' may be included or omitted based on house style.
Usage
Usage note: The correct typographic form is 'e.max' — note the lowercase 'e' and the full stop. This is a proprietary name; when referring to the material class generically, use 'lithium disilicate.'
In Context
- "The prescription called for an e.max Press crown on the upper right central incisor using a high-translucency ingot." — Laboratory Prescription
- "Editors must standardise the brand name to 'e.max' and query any variant spelling such as 'E-Max' or 'Emax.'" — Editorial Style Guide