Send us Photos, Securely!

In today’s environment, communication is key in being successful.

It’s also about feeling secure. That’s why we have opted to use WeTransfer’s file sharing services for sending large size files, or large quantities of files.

Their service is GDPR compliant which is considered a framework similar to Canada’s PIPEDA act with regards to policies of the collection and security of data processing.

With the technical stuff out of the way, let’s get to the good stuff, sending photos and files!

How to send files via WeTransfer

  • Open your preferred web browser (ie. Chrome, Firefox, Edge, etc).
  • Navigate to There is no need to make an account or sign up for anything. Just click “No Thanks”.
  • Now, fill out the form as shown in the picture below.

send To:, and type in your email address in the From section. Fill in the message section with the patient name and shade tab
  • Open the folder that contains the pictures of your patient. The pictures should include 1 or 2 .NEF files and up to 5 JPG images.
  • Select the files by Shift or Ctrl Clicking and drag them to the browser window.
  • Once you have dragged the files over, they will then appear in the form:
  • After all files have been added, and form is filled out, you can click the Transfer button.
  • You may also have to supply a verification number which will be emailed to the address you type in for your clinic.
    Just retrieve the code from your inbox and paste or type it into the verification field and click Verify.
  • You will receive an email confirmation that the photos have been sent, and when we retrieve them, all securely.

This will have completed your session of sending photos/files securely to us.

If you are more of a visual learner, give this brief tutorial a watch:

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Great Search Website for identifying which type of Implant your patient has

What brand Implant is that?



This is an excellent resource for implant dentistry. Have you ever had a patient with an implant and wondered what type of implant it was?  This website will help you identify the implant. is a free resource to the dental professional.  They are in the business of trying to help you identify dental implants by merely looking at your patient’s radiographs. You would be surprised at how many unique characteristics implants have that can differentiate them from the thousands of implants out there. Take a good quality x-ray and search through the images the website offers to identify the implant radiographically.

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Splints and Night Guards: the Why, When and How

Flex 1-PathWhiteYes – we do continuing education in the summer!

A complimentary seminar presented by Dr. Ian Tester with a live patient demonstration.

Wednesday, July 15, 2015

6:00 pm – 9:00 pm


• Indications for splints and night guards
• Steps from diagnosis to insertion
• Insertion and adjusting splints and night guards with a live patient.


Ian TesterIan Tester graduated with his DDS from the University of Toronto in 1982 and his Master of Science in Dental Sciences (MSc) from Donau University,Austria in 2004, specializing in Therapies for the Functionally Disturbed, Craniofacial and Masticatory System, Prosthetics. He is the Co-Section Editor of Occlusion and Temporomandibular Dysfunction – Journal of the Canadian Academy of Restorative Dentistry and Prosthodontics (CJRDP) and a founding member of the Academy of Advanced Interdisciplinary Dentistry (I.A.A.I.D.) Dr. Tester is also President of the Canadian Academy of Restorative Dentistry and Prosthodontics – CARDP (2014-2015). Since 2001 he has lectured extensively in North America in the areas of complex restorative dentistry, occlusion and esthetics. Among these, Dr. Tester presented a 2-day graduate orthodontic program – Advanced Programs in Occlusion at the University of Southern Nevada in 2009.

To register contact

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Rotsaert Dental Lab supports Mrs. Laura Schneider and Dr. William Schneider in dental education with “DFTBYT”

Rotsaert Dental Laboratory is a proud sponsor of the interactive dental education program “Don’t Forget To Brush Your Teeth”, created and presented by Mrs. Laura Schneider and her team.  This free program brought to area schools teaches children from junior kindergarten to grade three the benefits of good dental hygiene.  It was recently featured in the Canadian Dental Association’s Oasis Journal.  Read the article and listen to the audio interview by following this link:

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Rotsaert Dental Lab, family-owned and operated, celebrates 50 years in 2014

50 years of service to the dental community

Posted in Dental Technology, Featured, Social, Uncategorized | Leave a comment

“The Legacy Lives On” video. Rotsaert Dental Laboratory is a family owned and operated business which has been servicing the dental community for over 50 years. The lab was built on the principles of providing high quality restorations and excellent customer service. View the video on YouTube at Rotsaert Dental Legacy.

Rotsaert releases the second movie ‘the legacy lives

Posted in Continuing Education, Dental Technology, Education, Featured, Restorative, Social, Uncategorized | Leave a comment

A Celebration of Prosthodontics: Bringing Chicago to you

Date: Saturday, February 27th, 2021
Schedule: 10:00 AM – 3:00 PM EST
Location: Virtual Program. Live on Zoom
Click here to Register:

10:00–10:07 Introduction

10:07–10:15 GC Platinum Corporate Forum

10:15–11:30 Panel #1: Digital Dentures: The Future is Now

Moderator: Dr. Carlo Poggio
Panellists: Drs. Nelson Silva, Lucio Lo Russo, Valerie McMillan

Panel Outline
There has been a substantial shift in the field of removable prosthodontics, since the introduction of Digital Dentures in the dental market, a decade ago. Our three panellists have been instrumental in playing a major role in this evolution and will discuss the protocols that they are using and give us a bird’s eye view into the bright future in denture therapy.

Session Objectives

  1. Understand the challenges when incorporating digital denture protocols
  2. The attendee will be introduced to the newest cutting edge techniques
  3. Provide clinical recommendations for simplified and predictable long-term outcomes in denture therapy

11:30-11:45 Gold Corporate Forum #1
Sponsor: Ivoclar Vivadent
Sponsor: Sterngold

11:45-13:00 Panel #2: The Business of Dentistry in the Pandemic Era

Moderator: Dr. Izchak Barzilay
Panelists: Eric Wenzel (3M Oral Care), Steven Kess (Henry Schein),
Aaron Lipton (123Dentist)

Panel Outline
The recent pandemic had a tremendous effect on dental practices, manufacturers and distributors of dental supplies. Our panellists will discuss these effects, the changes that they have caused and the long-term impact on our profession.

Session Objectives

  1. To understand the challenges that dental practices, manufacturers and distributors are facing during the pandemic
  2. To introduce the steps that were taken to overcome the supply chain disruption
  3. To discuss guidelines that could help attendees prepare for the future
  4. To outline how practitioners, manufacturers and distributors could coordinate their efforts to avoid similar pitfalls in the future

13:00-13:15 Gold Corporate Forum #2
Sponsor: 3M
Sponsor: Straumann

13:15-14:30 Panel #3: Implant Challenges in the Esthetic Zone:
Ask the Experts

Moderator: Dr. Effie Habsha
Panellists: Drs. Joseph Kan, Dennis Tarnow, Stavros Pelekanos

Panel Outline
Anterior implant esthetics can often pose esthetic challenges. Our three panellists will discuss the protocols that they have used in order to obtain successful long-term outcomes during implant therapy in the anterior zone.

Session Objectives

  1. Understand the prosthetic and surgical challenges in the esthetic zone
  2. Understand the treatment planning process in anterior implant restorations
  3. Understand the prosthetic and surgical factors for successful long-term outcomes in the esthetic zone
  4. Provide clinical recommendations for predictable long-term outcomes in anterior implant restorations

14:30-14:45 Gold Corporate Forum #3
Sponsor: Southern Implants
Sponsor: Nobel Biocare

14:45-15:15 APS Social Event
Moderator: Dr. Cortes
APS Business Meeting
Sign MOU with the Greek Prosthodontic Society

“Ten Tips on how to Enjoy Food & Wine to the Fullest in 10 minutes”
Presented by: Anthony Makoujy, Certified Sommelier & General Manager of Barons Creek Vineyards, Fredericksburg, Georgetown & Granbury, Texas

Plus, a chance to win one of 4 Wine Trio-Packs shipped to your front door

Schedule is subject to change

This continuing education activity has been planned and implemented in accordance with the standards of the ADA Continuing Education Recognition Program (ADA CERP) through joint efforts between The American College of Prosthodontists and The American Prosthodontic Society.

The American College of Prosthodontists designates this activity for 4.00 continuing education credits.

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A Laboratory Evaluation of Localized Wear of Splint Materials.

DigiSplint nightguard being printed on EnvisionONE 3D printer

KeySplint Soft™

Leinfelder Wear Simulator was used to simulate the wear in vitro KeySplint Soft™ when stored at 37°C for 24 hours followed by placement in PMMA beads slurry and then exposed to localized wear using stainless steel. Volume loss(mm3) and maximum depth (μ) was calculated after 400,000 cycles which is said to be equal to 3 years of clinical wear.

Wear conditions in removable dental appliances can be categorized into generalized and localized conditions, where wear due to the masticatory forces is said to be generalized and direct tooth to material contact is localized. This study indicates that KeySplint Soft™ material wears less in both conditions in vitro.

KeySplint Soft™ changes its properties with temperature and thus becomes more pliable when in contact with the body temperature, reducing the chances of fracture. KeySplint Soft does not show any cracking on magnification, thus suggesting energy absorbing behavior. Furthermore, this material when subjected to continuous temperature change intraorally and at room temperature enhances the longevity of the appliance.

When DigiSplint is warmed up under hot water it becomes flexible.

DigiSplint trims like hard acrylic.

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New Technologies for Restoring Dental Implants

Rotsaert Dental Laboratory & Zimmer Biomet Dental cordially invite you to 
a complimentary CE evening program. 

“New Technologies for Restoring Dental Implants”


This program will review recent advances in computer-aided design and manufacturing (CAD/CAM) in implant dentistry and explore the possibilities offered by Bellatek and a fully digital approach, eliminating the need for implant-level impressions while delivering an anatomically precise restoration for Zimmer Biomet Implant Systems.


At the completion of the program, participants will learn:

• Alternative restorative options when taking a fully digital approach.
• Benefits of Intra-Oral Scanning
• Final Restorative Options for Dental Implants
• The benefits of using Encode® healing abutments

Date: Tuesday, November 17th, 2020
Schedule: 6:00 PM Registration 6:30 PM – 8:00 PM Lecture
Location: Rotsaert Dental Laboratory
71 Emerald St South Hamilton, ON

Please Register by Friday November 6th 
Seating is VERY limited due to COVID Restrictions 
OR Join us virtually via Web Ex.

To register call:  Chris @ 416 418 5874 Or email: 

About the Speaker:

Speaker: Steve Kauffman, DDSS 

Steve Kauffmann is a Digital Dentistry Sales Specialist for Zimmer Biomet Dental. He is a graduate from the United States Naval Academy and served in the US Navy for six and half years aboard the USS OGDEN (LPD 5) and USS BUNKER HILL (CG 52).  He has been in the dental field for seven years with Zimmer Biomet as a Territory Sales Representative, Regenerative Portfolio Ambassador and most recently as a Digital Dentistry Sales Specialist. During this time, he has focused specifically on the support of clinicians in the use of different dental technologies and protocols. These programs focus on full arch rehabilitation, occlusion, implementing digital technologies, and practice productivity.  He currently lives in Stow, Ohio with his wife, Kim, and two stepdaughters, Ella and Jillian.   

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Rotsaert Dental Laboratory support RNAO’s #TogetherWeCanDoIt campaign

The Registered Nurses’ Association of Ontario (RNAO) wants everyone to join in and actively show our support for health providers and other essential services.

Beginning Thursday, March 19, 2020 at 7:30 p.m. local time and every evening going forward, RNAO is asking everyone – from the doorsteps of their homes or keeping a safe distance – to cheer on the millions of health providers, social service and other essential front-line workers in Ontario, Canada and around the world who are tackling #COVID19.

RNAO invites Ontarians to show their support in honour of those heroes keeping us all safe, while keeping in mind social distancing. “Step out onto your porch, balcony, or open a window and make some noise. Take a short video of yourself banging some pots and pans, singing a song, applauding, or honking your horn, and share it on social media,” says Dr. Doris Grinspun, RNAO’s CEO.

What:  #TogetherWeCanDoIt campaign to cheer up health-care providers

When: 7:30 p.m. sharp local time beginning March 19, 2020 and every day going forward until the fight against #COVID19 is over


  • Make yourself heard by stepping out onto your porch, balcony, or open a window and make noise: bang pots and pans, sing a song, applaud, or honk your horn
  • Tell your family, friends and neighbours to get involved
  • Post your cheering-up activity on social media with the tag @RNAO and using the hashtags #TogetherWeCanDoIt and #Cheer4HealthWorkers

“This amazing spirit of human solidarity must become even more infectious than the virus itself.”   – Dr. Tedros, World Health Organization

Let’s make Dr. Tedros’ words a reality!

The Registered Nurses’ Association of Ontario (RNAO) is the professional association representing registered nurses, nurse practitioners, and nursing students in Ontario. Since 1925, RNAO has advocated for healthy public policy, promoted excellence in nursing practice, increased nurses’ contribution to shaping the health system, and influenced decisions that affect nurses and the public they serve. For more information about RNAO, visit our website at or follow us on Facebook  and Twitter.

For more information, please contact:

Marion Zych
Director of Communications
Registered Nurses’ Association of Ontario (RNAO)
Phone: 416-408-5605 / 1-800-268-7199 ext. 209
Cell: 647-406-5605

Victoria Alarcon
Communications Specialist/Coordinator
Registered Nurses’ Association of Ontario (RNAO)
Phone: 416-408-5610 /1-800-268-7199 ext. 211

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Our COVID-19 emergency preparedness and support commitment

The COVID-19 pandemic represents a significant health and economic threat to Canadians everywhere. Rest assured that the health and well-being of our clients and team members is always our top priority. Rotsaert Dental Lab has always followed strict guidelines on infection control, which is vital now more than ever.

A recent message from the RCDSO “recommends that all non-essential and elective dental services should be suspended immediately. Emergency treatment should continue.”

In light of this recommendation, we have suspended patient shade-taking and/or walk in adjustments. Our clients may send us emergency cases, and we will ensure the highest level of quality, service and attention to detail in fabricating the patient’s prosthesis.

Thank you for your continued support and confidence in our team at Rotsaert Dental Lab.

We will weather the storm that is COVID-19 together.

Nicole Rotsaert, RDT


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Event Postponed – The Implant Care Protocol – A Critical Update

We regret to inform you that due to the rapidly evolving case of COVID-19 this event is postponed until further notice.

We will update you of the new schedule for this event in the coming weeks. Please stay safe.

About the Course:

It has been eight years since Dr. Fritz and his team published the Supportive Periodontal Implant Maintenance Protocol, which has been shared and implemented in dental practices and hygiene colleges across the globe. With the exciting new periodontal and peri-implant classifications published simultaneously by the AAP and EFP they felt it was necessary to revisit the implant maintenance protocol to better reflect the new information and technologies available today. This lecture is focused on the best evidence to prevent peri-implant mucositis and peri-implantitis using a systematic approach which is personalized for the patient. This critical update has eliminated several steps from the former algorithm and replaced them with innovative approaches generated from new concepts of peri-implant health.

Learning Objectives:

  • Define and identify peri-implant health, peri-implant mucositis, and peri-implantitis based on the new periodontal and peri-implant classification system (2018).
  • Learn the Fonthill Implant Care Protocol algorithm to support implant reconstructions.
  • Identify peri-implant pathology.
  • Identify treatment of peri-implant disease.
  • Understand the co-dependent relationship between implantology and periodontology.
  • Date: Tuesday, March 31, 2020
  • Time: 6:00 pm to 9:00 pm
  • Location: Rotsaert Dental Laboratory
  • Category 2 – 3 CE Points
  • 71 Emerald St. S, Hamilton, ON L8N 2V4
  • Register at or Call 905-527-1422

About the Speaker:

Dr. Peter C. Fritz, B.Sc., D.D.S., F.R.C.D.(C)., Ph.D. (Perio), M.B.A.

.Dr. Fritz is an intrepid life-long learner. He combines clinical, scientific and a strong business acumen to pursue excellence in patient care, optimizing learning of peers and pupils and ensuring economic responsibility. He is a certified specialist in periodontics and is in full time private practice in Fonthill, ON.   Dr. Fritz completed his D.D.S., Ph.D. and Periodontal specialization at the University of Toronto and his MBA at the Kellogg School of Management at Northwestern University. He is a cross-appointed at the Michael DeGroote School of Medicine at McMaster University and in the Faculty of Applied Health Sciences at Brock University.

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Core CE Track by eDropin

We are proud to be a partner of this 7-course, 24 Category-1 CE series. It is something every dentist and new grad can benefit from. The Seminars will start on March 6, 2020 through November 13, 2020. All seminars will take place in Mississauga. Here is the kicker, this entire 7-course series is only $249.99. There are only 100 spots so hurry and register today!

Registration here:

Venue: Red Rose Convention Center, Mississauga.

Sales end: Thursday 5th March 12:00 PM There will be catered meals and refreshments. If you have any questions you can reach eDropin at

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See you at Thunder Bay Dental Rendezvous

Stop by Rotsaert Dental Laboratory booth to try out the

Thursday, January 23, 2020 6:00 pm to 10:00 pm


Friday, January 24, 2020 First and Second Break

If you have any questions, please call

Mark Rotsaert at 905-979-3867

Related image
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Frequently Asked Questions – 3M™ Lava™ Esthetic Zirconia

What is 3M™ Lava™ Esthetic Zirconia?

Lava Esthetic zirconia is a CAD/CAM disc for dental lab fabrication of esthetic all-ceramic full-contour restorations. It is a pre-shaded, high translucent cubic zirconia material with a natural color gradient optimized for esthetic full-contour restorations.

What is cubic zirconia?

A new all-ceramic material class based on zirconia. Compared to conventional zirconia, cubic zirconia offers a significantly higher translucency at a reduced strength level. Cubic specifies the dominant crystal structure present in Lava Esthetic zirconia. In conventional zirconia products like 3M™ Lava™ Plus Zirconia, the tetragonal crystal structure is dominant.

How does the composition of Lava Esthetic zirconia compare to Lava Plus zirconia?

Both are “polycrystalline” materials, this means that they consist of many small crystals. The crystals are composed of zirconium dioxide (syn. zirconia) with a small addition of yttrium oxide (syn. yttria) (3 mol%– 5 mol%). The yttria content determines the so-called “phase or structure” of the crystals, i.e. how the Zr and O atoms are arranged in the crystal lattice. Zirconia has three distinct phases: monoclinic, tetragonal and cubic. Conventional zirconia such as Lava Plus zirconia contains around 3 mol% yttria and the crystal phase is predominantely tetragonal. Under mechanical stress the crystals can undergo a phase transformation to monoclinic. This leads to a local volume increase that impedes crack propagation and makes conventional zirconia the strongest and toughest ceramic used in dentistry. Lava Esthetic zirconia contains 5% mol, the crystal phase is predominantely cubic. Cubic grains are larger and have isotropic (same in all directions) optical properties. This leads to less scattering of light and therefore greatly improved translucency.

What is the main difference between Lava Esthetic zirconia and other cubic zirconia?

The Lava Esthetic zirconia discs are gradient pre-shaded with a new proprietary shading chemistry with four shading elements. This enables a true color match to VITAclassical shades and makes Lava Esthetic zirconia the first zirconia with inherent tooth-like fluorescence built into the disc.

What is tooth-like fluorescence and why does it matter?

Sunlight and artificial light contain invisible ultra-violet (UV) light. Natural teeth look blue in UV light because they absorb UV light and emit visible blue light. This is called fluorescence. To look natural in all light conditions restorative materials have to mimic this effect.

How can I achieve the best final shade match?

Lava Esthetic zirconia offers a built-in shade gradient and inherent fluorescence for a true match to VITA classical shades. Glaze restorations to achieve best match to selected shade. Lava Esthetic zirconia has a high translucency so that dark preparations may shine through. Communicate the stump shade to your lab to ensure shade match.

Will Lava Esthetic zirconia replace any of the current Lava zirconia products?

No, Lava Esthetic zirconia comes in addition to the current portfolio. It is a new type of zirconia for productive high-esthetic full-contour restorations. Lava Plus zirconia remains our versatile high strength zirconia option.

What is the strength of Lava Esthetic zirconia?

Lava Esthetic zirconia offers a 3-point bending strength according to ISO 6872:2015 of 800 MPa and is qualified for Type II, class 4 indications: Crowns, bridges with one pontic between two crowns, inlays, onlays and veneers. Lava Esthetic zirconia has a significantly higher flexural strength than IPS e.max® CAD. Lava Esthetic zirconia has higher flexural strength than other leading super-high translucent cubic zirconia, but less than Lava Plus zirconia.

What is the fracture toughness of Lava Esthetic zirconia?

Lava Esthetic zirconia has a fracture toughness of 4.4 ± 0.5 MPam½ measured by the SEVNB method according to ISO 6872:2008. And, it has a significantly higher fracture toughness than IPS e.max CAD.

What indications can be covered with Lava Esthetic zirconia?

  • • Crowns
  • • Bridges (max. 1 pontic between two crowns)
  • • Inlays, onlays, veneers
  • Please refer to Instructions for Use for details.

What is the minimum wall thickness and minimum connector cross section requirement for Lava Esthetic zirconia?

Wall thicknessBridge connector cross section
Anterior ≥ 0.8 mm ≥ 12 mm²
Posterior ≥ 0.8 mm ≥ 14 mm²

Can Lava Esthetic zirconia restorations be used on implants?

Yes, Lava Esthetic zirconia crowns and bridges (with max. 1 pontic between two crowns) can be used on implant abutments.

Can Lava Esthetic zirconia be used for adhesive bridges such as Maryland bridges or inlay/onlay bridges?

No, Lava Esthetic zirconia is released for bridges with maximum 1 pontic between two full coverage crowns.

Can Lava Esthetic zirconia be used for cantilever bridges?

No, Lava Esthetic zirconia is released for bridges with maximum 1 pontic between two full coverage crowns.

Can bruxism patients use Lava Esthetic zirconia?

For cases with very limited space or parafunctional patients requiring ultimate strength, choose Lava Plus zirconia.

In what shades is Lava Esthetic zirconia available?

There are eight shades available at launch: Bleach, A1, A2, A3, A3.5, B1, C1, D2. Additional shades are under development and will be available in 2017.

Is a white Lava Esthetic zirconia disc for liquid shading available?

No. There are no white discs and no liquids available. All Lava Esthetic zirconia discs are pre-shaded and must not be used in combination with liquids.

In what formats is Lava Esthetic zirconia available?

Lava Esthetic zirconia is available in 98 mm disc format with step in three heights: 14, 18 and 22 mm.

Is Lava Esthetic zirconia available on a CEREC® mandrel?

No, Lava Esthetic zirconia is available in 98 mm disc format with step.

Is Lava Esthetic zirconia available in frame format?

No, Lava Esthetic zirconia is available in 98 mm disc format with step.

Which milling systems are compatible with Lava Esthetic zirconia discs?

Lava Esthetic zirconia discs fit into open milling machines compatible with 98 mm disc format with step suitable for dry milling of zirconia, e.g.:

  • • Roland DWX-50, DWX-51D
  • • Sirona InLab MC X5
  • • VHF K3, K4, K5, S1, S2
  • • imes-icore CoRiTEC 245i, 250i, 350i, 650i, 850i
  • • Yenadent D14, D15, D40, DC40, D43

This list is for guidance purposes only – many other compatible milling systems exist and new systems enter the market frequently. Always check with milling system suppliers for compatibility. Lava Esthetic zirconia discs are not compatible with Zirkonzahn Mx, Sirona Inlab/CEREC MC XL, 3M™ Lava™ Form and 3M™ Lava™ CNC milling systems.

How should Lava Esthetic zirconia be milled?

Lava Esthetic zirconia discs are optimized for dry milling processes and can be milled with CAM strategies and parameters suitable for zirconia.

However, the surface quality of milled restorations and the yield rate greatly depend on set milling parameters, machine and tool types and the interaction of Lava Esthetic zirconia discs with your system. Thus, the following milling parameters are recommended:

Job Feed (mm/min) Step down (mm) Step over (mm) Spindle speed (RPM) Carbide tool diameter (mm)
Roughing 6000.40.610,0002
Rest material roughing 6000.30.330,0001
Finishing inside 3D/occlusal1350n.a./0.15 0.1525,0002
Finishing margin line 3D 500n.a.0.125,0002
Finishing outside cavity 8000.150.1525,0002
Fine finishing inside 3D 1,000n.a.0.1220,0001
Fissure machining 80010.230,0001
Fine fissure machining 5000.50.1530,0000.5

Please ask your CAM module and mill supplier for help to adapt the parameters in your system if necessary.

Is Lava Esthetic zirconia compatible with 3M™ Lava™ Frame or Lava Plus dyeing liquids?

No. Lava Esthetic zirconia must not be used in combination with any dyeing liquids. The use of dyeing liquids can reduce the strength of the material and compromise fluorescence and shade match.

What is the sintering cycle for Lava Esthetic zirconia?

Cycle StagesCycle Parameters
Heating20 °C/min to 800°C
10 °C/min to 1,500°C
Holding Time120 min at 1,500°C
CoolingMax. 15 °C/min to 800°C
Max. 20 °C/min to 250°C

In our lab we already use certain sintering cycles for zirconia. Is it ok to sinter Lava Esthetic zirconia with my current cycles?

No. Lava Esthetic zirconia must be sintered with the cycle displayed above. Using a different sintering cycle can have negative effects on strength, translucency and/or shade.

What is the drying time of Lava Esthetic zirconia after shading with liquids? Is there a special sinter program including a drying step?

There is no drying time because Lava Esthetic zirconia must not be used in combination with any dyeing liquids. The use of dyeing liquids can reduce the strength of the material and compromise fluorescence and shade match.

What is the recommended finishing for full-contour Lava Esthetic zirconia restorations?

It is recommended to glaze restorations to achieve the best match to the selected shade and a natural, esthetic appearance.

Alternatively, the restoration can be polished using rubber polishers and polishing brushes with diamond polishing paste. This may cause a change in the shading results. This can be avoided, in part, if a shade lighter than desired is selected.

Which stains and glazes can be used?

Low-temperature (< 900 °C) firing glazes and stains suitable for use with zirconia must be used. A vacuum during the glaze firing holding time is not recommended. When Lava Esthetic zirconia is used in combination with a glaze, the manufacturer´s instructions for use must be observed.

Examples of compatible glazes: Examples of compatible stain systems:
• Creation ZI/ ZI-F Glaze • IPS e.max® Ceram Shades
• IPS e.max® Ceram Glaze • IPS Ivocolor™ Universal Stains
• Amann Girrbach Ceramill® Glaze • Amann Girrbach Ceramill® Stains
• Noritake Cerabien ZR External Stain Kit

How can I cement a restoration made of Lava Esthetic zirconia?

For final cementation of crowns and bridges, 3M recommends using 3M™ RelyX™ Unicem 2 Self-Adhesive Resin Cement offering high bond strength and ease of use without compromising reliability and esthetics. Depending on the requirements, Lava Esthetic zirconia restorations may be cemented either conventionally (e. g. with glass ionomer cements such as 3M™ Ketac™ Cem Glass Ionomer Luting Cement or a resinmodified glass ionomer cement such as 3M™ RelyX™ Luting Plus Cement) or adhesively (e. g. with 3M™ RelyX™ Unicem 2 Self-Adhesive Resin Cement or 3M™ RelyX™ Ultimate Adhesive Resin Cement).

How do I pre-treat the bonding surface of Lava Esthetic zirconia?

Bonding surface must be sandblasted (30–50µm median particle size alumina, 2 bars/30 PSI). HF etching does not work.

If sandblasting is done in the lab, please make sure to clean the restoration surface with 5.4% NaOCl solution (Sodium Hypochlorite Bleach Solution), rinse and dry after the final try-in right before applying the cement. Do not clean with phosphoric acid.

Can sandblasting or diamond grinding reduce strength?

Yes. In general, strength is lowered by surface roughening of a ceramic material. This is true for mechanical treatment of all cubic zirconia materials as well as for HF etching of glass ceramics.

If adaptations were made to a restoration with diamond tools, make sure scratches or rough surfaces are smoothened with rubber polishers used for ceramics before cementation.

Fatigue studies conducted at the University of Alabama, Birmingham, have shown that sandblasting does not have a negative impact on the durability of Lava Esthetic zirconia restorations when cemented with RelyX Unicem 2 cement.

Do I need a primer for Lava Esthetic zirconia?

Follow the instructions of the cement you use – if it says use a certain primer for zirconia then you should do that. 3M recommends using RelyX™ Unicem 2 cement which does not require a separate primer for cementation of Lava Esthetic zirconia crowns and bridges.

How can restorations made of Lava Esthetic zirconia be adjusted and polished intra-orally?

Lava Esthetic zirconia is easier to adjust and remove in comparison to conventional zirconia. Adjust as needed with fine-grain diamond bur and water cooling. Make sure to maintain a minimum wall thickness of 0.8 mm. Polish adjusted areas with rubber polishers used for ceramics.

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