Instructions for use
Elers Medical® blanks are applicable for the production of monolithic nonmetal-based dental restorations: crowns, bridges up to 16 units with maximum of 2 pontics or cantilevered pontics between 2 crown teeth in the posterior area, with maximum of 4 pontics or cantilevered pontics between 2 crown teeth in the anterior area (exception: «HT» and «ML HT (Light)» products up to 3 pontics in the anterior or posterior area), inlays, onlays, primary telescopes, bar constructions etc.
Our products can be used in all open CAD/CAM systems.
Sintering

Sintering Tables are available with a QR code on the back of the box or from the download link above.

Notice: Tmax could vary from 1450 °C up to 1550 °C – please, choose the value that fits the best result. Parameters were recommended by TOSOH company. They should be specified by customer accordingly to the furnace specific properties and the construction type (single crown, dental bridge, etc.).

To match the sintering temperature with the program temperature, make sure your furnace is calibrated correctly. Lower temperatures will create a deeper shade and lower transparency. Higher temperatures will create a lighter shade and higher transparency, but worse material strength. Do not exceed Max temperature of 1550 C as construction may become unstable.

Indurate Zirconia Sintering Table
* Quick default settings for up to 3 units, please use Sintering charts for more options and information.
Specifications
Elers Medical Indurate® blanks for dental restorations are pre-sintered yttrium-stabilized zirconia discs for machining on CNC (Numerical Control) milling machines.
Elers Medical Indurate® blanks are intended for sale only to qualified professionals, dental restorative milling laboratories or centers authorized to process dentures.


Introduction

Read these instructions carefully before using the blanks and always follow them.
Improper use of blanks and non-compliance with the instructions provided can affect the quality and reduce the service life of dental constructions.
The blanks must be used in accordance with the instructions and only for the precisely defined purposes for which they are intended.
The manufacturer is not responsible for any consequential damage and / or injury caused by improper use of blanks. When using blanks, it is assumed that you are qualified for the use and technological operations, and also agree not to hold the manufacturer accountable for any incidents or actions associated with the improper use of blanks.
Keep the instructions easily accessible throughout the life of the blank. Pass this information on to the next user of blanks or products made using the blanks.
To user`s attention

a. Do not use Elers Medical® blanks for patients with allergic reaction to material`s components.
b. Protective measures
- If allergic reaction occurs by patient, dentist or lab technician, to Elers Medical® based products, immediately stop any contact with the material and seek medical help.
- During the milling and manual processing of Elers Medical® products use breathing mask in order to prevent dust inhalation.
- For eye protection from dust or other particles please use eye protective gear. If dust gets into the eyes immediately rinse them with water and contact a doctor.
- Blanks are only for manufacturing of dental restorations. Do not use the product for any other purpose.
- Do not touch the heating elements of the furnace.
c. Careful usage
- Start blanks processing as soon as you removed it from standard packaging.
- Do not wash the disc and avoid any ingress of moisture on it`s surface.
- If you find the cracks on disc, please do not use it and call to your Distributor.
d. Storage conditions
- Dry storage, away from sunlight.
- Protect disc from moisture/humidity.
- The recommended room temperature should be between 10°С and 30°С.
- Store in the standard package. Do not remove from package, if there is no need, remove only before use.
- Do not drop the disc.
- Store in the areas specially designed for the purpose, with access only for laboratory staff.
- Use before expiration date labeled on the package.
TREATMENT
Elers Medical Indurate® blanks are made of high-performance material and therefore must be handled with care at all times. Avoid touching with wet hands. The precautions given in these instructions for use must be followed.

MILLING
For milling workpieces, CNC milling machines, machine tools and process parameters must be observed. The use of coolers during milling is not recommended as their use can lead to discoloration and / or loss of transparency. Check the workpiece for visible discoloration, cracks and fractures after machining.
Use only milling systems recommended by the manufacturers for processing zirconia. Calibration of milling systems is essential for optimal results. All systems are different and unwanted results can be obtained if the minimum thickness requirements are not followed. As the material shrinks during firing, it is important to consider the appropriate compression ratio during milling. Each workpiece is marked with an individual compression ratio that should be taken into account.


SINTERING
All restorations made from Elers Medical Indurate® blanks must be sintered.
Firing of ceramic material should be carried out in specialized high-temperature furnaces.
You must follow the firing process specified for Elers Medical Indurate® blanks.
Also comply with the requirements of the oven manufacturer.
All standard programmable dental laboratory ovens can be used.
Sintering furnaces can vary in their technical characteristics, therefore periodic calibration is highly recommended.
Follow the calibration instructions recommended by the oven manufacturer.
If the dental restorations have been fired in the oven using liquid dyes, it is recommended to carry out an oven clean anneal prior to sintering work from Elers Medical Indurate® blanks to avoid discoloration and incorrect translucency of the restoration.
Sintering furnaces should be located in fireproof, well-ventilated areas.
Do not open the oven or reach the dental restorations before the oven has cooled down to avoid the risk of damage to the restorations and burns.

FIRING PROGRAM
The parameters above are recommended by TOSOH. The specific firing parameters should be selected by the dental restorative technician based on the characteristics of the furnaces and the type of work performed for 1-3 units.
Check the sintered restoration for visible discoloration, cracks and chips after processing.

CORRECTION
If a correction of a fired ceramic restoration is required, it must only be carried out with water cooled diamond grinding instruments to prevent damage due to local overheating or excessive pressure on the restoration surface.
Never use milling tools that could damage the surface of the restoration.

Basic rules for handling sintered restorations
- do not apply high pressure to the surface during processing;
- use only diamond grinding tools in good working order;
- avoid the presence of sharp edges on the finished restorations in order to avoid injury to the patient;
- do not grind interdental connectors.

Veneer ceramics and Glazing
All veneering ceramics and glazing recommended for zirconia based ceramics can be used.

Sand Blasting Treatment
Particle size of 50μm - Pressure range 1-2 bar. Preferably lower value towards 1bar to be used in order to avoid chipping.

Installation
Elers Medical Indurate® blanks restorations can be cemented in the conventional manner with zinc phosphate or glass ionomer cement, or with (self-) adhesive cementation as an alternative.

The finished restoration must not be used if it has cracks, breaks or dents, or an abnormal change it its color. If any defect is found, the dental restoration must not be used on a patient.

Contraindications
Do not use restoration:
- in patients with non-functional habits (for example, bruxism);
- in patients with allergies to components;
- made of inappropriate material;
- made incorrectly.
INDICATIONS FOR USE

TZ (Opaque, 35%, 1400MPa+) - for the manufacture of reduced crowns, monolithic crowns for molars and premolars, hybrid abutments, crowns for abutments, bridges up to 16 units, as well as bar structures.

T (Translucent, 41%, 1100MPa+) - for the manufacture of monolithic crowns for molars and premolars, crowns for abutments, reduced crowns, hybrid abutments, bridges up to 16 units.

HT (High Translucent, 49%, 800MPa+) - for the manufacture of veneers, inlays, onlays, monolithic crowns for anterior dentures, crowns, abutments, bridges up to 3 units.

ET (Extra Translucent, 45%, 1100MPa+) - for the manufacture of veneers, inlays, onlays, monolithic crowns for anterior dentures, molars and premolars, abutment crowns, reduced crowns, hybrid abutments, bridges up to 16 units.

CT (Combi Translucent, 45-47-49%, 1100-1000-800MPa+) - for the manufacture of veneers, inlays, onlays, monolithic crowns for anterior dentures, molars and premolars, abutment crowns, reduced crowns, hybrid abutments, bridges up to 16 units.

Operating procedure

(1) Remove the disс from standard package and assure it`s not damaged.

(2) Install the disc into the milling machine, then install milling cutters.

Attention! During the installation of the disc labeled «ML», please check its installation position, the right position is the text-down. Otherwise after milling and sintering you could receive the inverted shading construction. The side which is opposite to the text-side - is pointed with colored dot – it is the side of the darkest layer shade.

(3) After milling separate the construction from disc.

(4) Blow off fine residual and dust after milling by using of air-blast.

(5) Put the construction into refractory crucible and place it in a sintering furnace.

(6) Start the sintering process according to the sintering program Instruction.

(7) After the final sintering the construction can be fitted to the model by a wet grinding process with diamond-coated burs if necessary. Sinter diamonds, corundum stones or hard metal milling burs must not be used. Overheating has to be avoided.
Contact us
+358 207 305 010
sales@elersmedical.com
info@elers-medical.eu

Address:
Niittytaival 13, 02200, Espoo, Finland