CEREC Tessera® by Dentsply Sirona: Now available for hybrid abutment crowns in a chairside workflow with the corresponding cement

Dentsply Sirona's CEREC Tessera^® for CAD/CAM restorations is an advanced lithium disilicate ceramic known for its high strength and esthetics. The material is now also available as a CEREC Tessera^® Abutment Block for hybrid abutments and hybrid abutment crowns and can be used for screw-retained implant restorations in a chairside workflow. The new Calibra^® Abutment Resin Cement complements these products and delivers strength, high opacity and simple usability with CEREC Tessera^® Abutment Blocks across a range of restorations.

Charlotte. Many dentists use hybrid abutments for restoration of implants [1], which combine a TiBase with an individually fabricated superstructure made of high-performance ceramic bonded to the TiBase. This enables the design of an anatomically customized emergence profile for high-quality mechanical, biological, and esthetic prosthetic restoration of the implant. Alternatively, fully anatomical hybrid abutment crowns can be fabricated and screwed directly onto the implant.

Strong, highly esthetic and now also screw-retained

Dentsply Sirona is now launching the CEREC Tessera^® Abutment Block for the in-office fabrication of both hybrid abutments and fully contoured hybrid abutment crowns. It is designed with a pre-drilled screw access channel and anti-rotation feature. This abutment block consists of a tooth-colored, high-strength Advanced Lithium Disilicate (ALD) glass-ceramic, specially developed for chairside CAD/CAM applications. The combination of glass and high crystal concentration leads to short firing of the material. It takes just four and a half minutes to fire a crown in the CEREC SpeedFire^® sintering furnace.

CEREC Tessera^® has an outstanding biaxial flexural strength of more than 700 MPa [2]. This minimizes the risk of fractures and cracks, even in restorations of just one millimeter thickness [3]. An additional advantage for users: starting with CEREC software version 5.2.9, CEREC Tessera^® abutments or abutment crowns do not need to be glazed. Instead, they are simply polished and then fired ("dry firing").

Effective setup for implant chairside workflow with corresponding cement

Calibra^® Abutment Resin Cement is available as a new cement specifically designed for the extraoral cementation of crowns or abutments to the TiBase. The cement, which provides excellent bond strength, is available in an ultra-opaque shade that effectively blocks unwanted substrate show-through and remains compatible with TiBases even following cleaning, disinfecting and autoclaving to reduce the risk of cross-contamination. Calibra^® Abutment Resin Cement is formulated for high bond strength and easy clean-up for chairside workflow efficiency.

Dr. Holger Hüttemann, a dentist from Bühlertal, Germany, has already gained initial experience. He sums up: "CEREC Tessera^® convinced me with its physical properties since its market launch. The fact that it is now also available as a meso block gives me the opportunity to use the material more in the chairside restoration of implants. The fast-processing time is a real benefit."

"The CEREC Tessera^® Abutment Block is a prime example showing that dental requirements are a very important driving force for advancing products and solutions," explains Arjan de Roy, Group Vice President of Essential Dental Solutions at Dentsply Sirona. "It complements the implantology workflow in a clinically excellent and efficient way."

It is now available as a solution for in-office implant restorations and is compatible with many popular implant systems using CEREC software version 5.2.9 or higher [4].

For more information visit: https://www.dentsplysirona.com/en-si/discover/discover-by-brand/cerec-tessera.html

[1] MOSTAFAVI, Azam Sadat; MOJTAHEDI, Hamid; JAVANMARD, Afrooz. Hybrid implant abutments: A literature review. European Journal of General Dentistry, Vol. 10, 2/2021, p. 106-115.

[2] Flexural strength determined internally by biaxial flexure test according ISO 6827:2024. Sample size: 393. Internal data on file PB-24-27-02. For more information, contact [email protected].

[3] A 1 mm occlusal reduction can be achieved with a full adhesive bond.

[4] Consult the instructions for use for a full list of compatible implant systems.