FAQ

New Predicta Desensitizer is changing the way clinicians treat dentin hypersensitivity by using the elements that are naturally found in the tooth, (calcium and phosphate) and restoring them to the tooth in the form of hydroxyapatite plugs that quickly block the open tubules. As calcium and
phosphate ions continue to release, mineralization occurs to further seal the tubules. Also, there are no methacrylate’s or soft-tissue irritating chemicals used in production.

Yes. The desensitizing gel must be able to come in contact with the open tubules in order to penetrate and plug them.

Absolutely. It is moisture tolerant, therefore, air drying the tooth with an air syringe is not necessary. Simply blot the treatment site with a cotton roll or cotton pledget, apply the gel and leave it on the tooth for 30-40 seconds.

No. Unlike many resin desensitizers, Predicta Bioactive Desensitizer does not require the use of a curing light.

Bioactivity! Bioactive materials release calcium, phosphate and fluoride, which trigger the formation of a protective layer of mineral apatite, the predominant element found in both enamel and dentin. They are also dual cure, eliminating the worry in incomplete cure of materials leading to sensitivity and failure of restoration.

Predicta Bulk is a highly polishable universal composite, that can be used in all areas of the mouth, and is indicated for Class I through V restorations. Predicta Core is indicated for core build-ups and as a post cement. The addition of Zirconia helps provide a strong and stable support for crowns made of zirconia, lithium disilicate, porcelain, PFM and metal.

Materials must always be brought to room temperature prior to use.

The most likely reason a dual-cure composite doesn’t set is failure to double bleed.

Remove the shipping cap. Extrude a small amount of material onto pad until it flows freely from both orifices. Place mixing tip on cartridge and extrude a pea sized amount onto pad prior to placing in mouth.

Regular viscosity is used ideally for large restorations where stability is desirable and material drift is not. Low viscosity is recommended for smaller preps where the ability to flow and adapt into tighter spaces is preferred and for better adaptation of hard to access prep margins and line angles. Both HV and LV versions can be used in all restorative situations. These guidelines are an aid when choosing a bulk-fill that more closely matches your needs.

No, Predicta Bioactive Bulk is a nanohybrid, it is optimized for wear resistance and is highly polishable.

Like all dual-cure composites there will be some self-etching bonding agents that are not compatible with Predicta Bulk. If you are unsure Parkell recommends you call the manufacturer. However, you can use any Parkell bonding agent with any Parkell product.

Viscosity selection is a personal preference. Both LV and HV are appropriate for and can be used in all core build-up and post cementation situations. However, as a general rule, the high viscosity is more stackable and is ideally suited for larger core build-ups. The low viscosity is more flowable and recommended for cases where post cementation and core are done together.

Like all dual-cure composites there will be some self-etching bonding agents that are not compatible with Predicta Core. If you are unsure Parkell recommends you call the manufacturer of the bonding agent and ask if it is compatible with dual cure composites. However, all Parkell bonding agents work with light cure, dual cure and self-cure composites as of now.

No. The Digitest 3 should not be used on a patient or by an operator who has implanted medical devices, such as pacemakers, defibrillators, or insulin pumps. It may interfere with these devices and cause harm.

The Digitest 3 cannot be used in the presence of flammable or explosive gases. The use of dental nitrous oxide/oxygen analgesia is not advisable because you would not get an accurate response. To accurately diagnose the condition of the tooth, pulp testing must be performed on a patient who has not received local anesthesia or gas analgesia.

The use of accessories other than those specified, or provided by Parkell Europe will result in improper operation. Do not use.

The battery is low and needs to be replaced. Replace it as explained in the section “Installing/Replacing” the Battery. Battery should be removed if unit is to be stored unused for more than 30 days.

It may be tightened by carefully inserting a flat screwdriver blade into the split metal base of the probe and gently expanding the sides apart with a twist of the tool. This adjustment method is outlined in the official Digitest 3 IFU.

No. Discard and replace any tooth probe if the metal or the insulation becomes damaged during use. You can purchase a new probe from our official accessories here.

Parkell’s Digitest 3 is to be used in conjunction with other diagnostic tests such as x rays, temperature tests, percussion etc. in order to confirm tooth vitality.

No. Studies indicate cold testing prior to electric pulp testing does not impact the results of the electric pulp test.

The tooth probes, ground clip and wire assembly may be sterilized in any conventional steam autoclave. Comply with manufacturers recommended procedures.

NO. Autoclaving the Digitest 3 power unit will damage it.

Not necessarily. Each patient will have their own base level to electrical stimulus that must be determined at the time of testing. The base level for each patient can be determined by pulp testing similar teeth to the teeth in question. To confirm the diagnosis, a corresponding control tooth in the same arch should be tested. Molars should be matched to molars, premolars to premolars, cuspids to cuspids, and incisors to incisors. If this is not possible because teeth are
absent, endodontically treated, have full coverage or very large restorations a similar tooth in the opposite arch should be used.

Explain to the patient that they are in control of the test and can stop it at any time. In most instances, the first sensation patients notice is a tingling feeling. When the patient feels a change in the tooth (tingling, pulsing, buzzing or slight discomfort) all they need to do is let go of the metal ground clip and the test will be over. This should minimize the potential for patient discomfort.

Retrieve DC is a long-term, dual-cure, provisional resin cement for implant retained crowns and bridges.

No

Retrieve DC was specifically formulated to address the unique requirements of cementing prosthodontic restorations to implant abutments. Stronger than temporary cements, yet less retentive than permanent cements, Retrieve DC has the ability to provide long-term cementation of implant restorations, while allowing for the the removal of these restorations when placed on a properly lubricated abutment.

As a rule, you should consider lubricating all preps that you deem candidates for future crown removal.

Water-based lubricants or glycerin are recommended.

It depends on the height and taper of the abutment. As the resistance and retention form of the implant abutment increases the greater the need for increasing the percentage of the abutment surface that must be lubricated. Prior to cementation coat at least 50% of the coronal portion of the implant abutment head with lubricant. In some cases, up to 75% of the abutment surface may
require lubrication for the restoration to be removed successfully. When lubricating an abutment, begin at the occlusal/incisal surface and apply the chosen lubricant down the walls of the abutment to the appropriate level. To create a tight marginal seal, do not lubricate the margins. This should give good retention, while allowing removal of the prosthesis later.

It depends. If the abutment has long parallel walls, a crown cemented without previously lubricating the preparation will probably be very difficult, if not impossible to remove without damage to the crown, the implant abutment, or both. Crowns cemented on shorter abutments may be removable with some effort.

Yes, Retrieve DC is highly radiopaque, (300% of Aluminum). Because of its high radiopacity Retrieve DC helps to reduce the possibility of implant failure due to peri-implantitis. A post implant x-ray can help identify excess flash for easier removal.

Retrieve DC was developed specifically for use with implants. For short-term cementation on natural teeth, we recommend Parkell’s ETC (Easy Temporary Cement).

Retrieve DC is hand dispensed from an automix, dual-barrel syringe through single use, disposable mixing tips. No gun is required.

Self-cure product timing:
Working Time (at 72 degrees F/22 degrees C): 1:30-2:30 minutes
Setting Time (at 98.6 degrees F/37 degrees C): 4:00-6:00 minutes
NOTE: Times will vary based on temperature, humidity, product age and storage conditions

Light-cure product timing:
At an activation wavelength of 430-480nm and an intensity of great than 600mW/cm, follow these
guidelines:
Halogen Light: 10 sec.
LED: 10 sec.
High Intensity LED: 5 sec.
Plasma Arc Curing (PAC) Light or Laser: 3 sec

Digitest 3 is a dental pulp vitality tester that delivers precise, repeatable results every time. It uses microprocessor-controlled technology to provide a smooth, controlled stimulus that helps reduce false positives and negatives. This ensures that dentists can diagnose tooth vitality with greater confidence. To explore the technical specifications in detail, visit our Product Brochure.

Digitest 3 is designed for fast, efficient use—even in the busiest dental environments. Its compact, lightweight build allows for easy one-handed operation, and the ergonomic probe ensures comfortable handling. The device features an automatic shut-off to conserve battery life, making it dependable across multiple patient visits. For a full guide on operating the device, check out our Instruction for Use.

Digitest 3 provides a gradually increasing stimulus that patients find comfortable, helping reduce anxiety during testing. It’s suitable for both anterior and posterior teeth, and its cordless design makes it easy to maneuver in tight spaces. The device is built for durability and daily use. Want to see it in action? Watch our Product Insight Video featuring our Vice President explaining its unique advantages.

Digitest 3 is manufactured with high-quality materials that stand up to daily clinical use. Its robust design minimizes maintenance needs and ensures long-term performance. Plus, it comes with Parkell’s trusted 2-year warranty and service support to give you peace of mind. You can learn more on our Warranty and Support page.

Definitely. Digitest 3 offers excellent value by combining advanced diagnostic technology, ergonomic design, and durability—all at a competitive price. It’s an investment that pays off in diagnostic accuracy and ease of use. Hear what our customers have to say in our Testimonial Videos from Dr. Simona and Dr. Sjobbe.

Yes, the probes, the wire and the metal clip can be cleaned and disinfected in a washer disinfector.

The procedure below has been validated according to EN ISO 15883:

• Use enzymatic or low alkaline, suited for medical devices, non-corrosive, neutral cleaning agent with minimal foaming characteristics, suited for medical devices.
• Use drinking water quality for cleaning and deionized or purified water for final rinse/disinfection.
• Load the instruments in an open position in the washer-disinfector. Use a suitable instrument tray.
• Pre-wash in cold water, 2 x 2 min
• Main wash with detergent at minimum 55°C, 10 min
• Rinse in warm water, 2x 1 min.
• Final rinse/disinfection in distilled or de-mineralized water at 90°C, minimum 1 min.
• Drying at 110° C, minimum 15 min.

The Digitest 3 power unit should not be reprocessed in a washer disinfector. Since, this will cause damage to it. Also, the Digitest 3 incorporates sophisticated electronic circuitry, it should not be directly sprayed with or soaked in disinfectant.

If a Tooth Probe becomes loose in the mount of the Power Unit, it may be tightened by carefully inserting a flat screwdriver blade into the split metal base of the probe and gently expanding the sides apart with a twist of the tool. Discard and replace any Tooth Probe if the metal or the insulation becomes damaged during use. This adjustment method is outlined in the official Digitest 3 IFU.

If the Digitest 3 does not deliver any power, it could be due to one of the following reasons:

• Starting the device – To turn on the unit, press the power button to select the desired speed. Then press and hold the power button during the whole test. Releasing the power button will interrupt the power discharge.
• Battery issues – Ensure the battery is fully charged and properly installed. Replace it if depleted.
• Probe or lead connections – Check that probe and lead wire are securely connected. Loose or damaged connections can prevent the unit from functioning.
• Device malfunction – If the batteries and connections are correct but the unit still does not discharge, there may be an internal fault. Contact Parkell technical support service or an authorized service provider for inspection or repair.

Yes, all accessories designed for the Parkell’s Digitest® 3 Pulp Vitality Tester are compatible with earlier versions. This compatibility includes probes, ground clips, and lead wires, which are fully interchangeable across previous and latest versions.

To preserve the Digitest screen from becoming opaque you should avoid wiping with high-alcohol solutions. The device should be disinfected by wiping it with a lint-free towel moistened with an EPA-approved disinfectant containing not more than 30% alcohol, alcohol-free surface disinfectant wipes or disinfecting wipes containing 3-5% hydrogen peroxide.

An opaque or cloudy screen usually indicates moisture, residue, or screen degradation. Here’s what you can do:

• Moisture inside the device – If exposed to humidity or condensation, the screen can appear cloudy. Power off the device and let it air dry in a warm, dry area for 24–48 hours. Avoid using direct heat like hairdryers.
• Chemical residue from cleaning – If a disinfectant or cleaning solution was used, residue may remain on the screen. Wipe gently with a soft, lint-free cloth slightly dampened with distilled water. Do not use high alcohol solutions as they will corrode the display and cause opacity. If the lens becomes hazy or scratched, NOVUS No. 2- Fine Scratch Remover or Polywatch lens polishing cream can be used to remove the damage
• Check batteries and connections – Ensure batteries are charged and probes are properly connected, as poor connections can sometimes affect the display.

No, this is not normal. Under standard use, the batteries in Digitest 3 should last for several weeks to months, depending on the frequency of testing. The replacement battery may be a Duracell ® MN1604, Panasonic ® 6AM6 or equivalent. Although rechargeable 9-Volt batteries may be utilized, they will require more frequent charging because of the considerable voltage required to perform the pulp vitality testing procedure.

Dryz Blu contains aluminum chloride, which acts quickly to stop bleeding and eliminate crevicular fluid seepage. This ensures a clear, dry field during procedures, making it highly effective for various dental applications.

Dryz Blu offers fast-acting hemostasis and a bright blue color that enhances visibility. This makes it easy to detect and remove, ensuring a clean working area. Its efficiency and cost-effectiveness make it a standout choice.

The Dryz Blu paste is dispensed into the sulcus using a syringe or unit-dose capsule and, if desired, pressed gently with a compression cap or cotton roll. It sets in about 2 minutes, allowing for efficient tissue management. For detailed steps, refer to our Instruction for Use.

Yes, Dryz Blu rinses off completely without leaving residue, ensuring that tissues remain unharmed. Its bright color also makes it easy to confirm complete removal, unlike some other pastes.

Dryz Blu is available in unit-dose capsules, syringe kits, and value packs, making it a cost-effective solution without compromising performance. For more details, check out our brochure and Safety Data Sheet.

Dryz Blu is designed with a bright blue color that enhances visibility, making it easier to apply and remove completely. Its fast-acting aluminum chloride formula ensures quick and effective hemostasis, providing a clear, dry field for procedures. Additionally, its consistency allows for better tissue displacement, ensuring efficient retraction. These features make Dryz Blu a reliable and cost-effective choice for dental professionals.

C&B-Metabond® is a dental adhesive cement system developed by Parkell, Inc. It’s renowned for its strong and durable bond between metals and bone, making it ideal for various neuroscience applications, including head fixation in rodent models.

Researchers apply C&B-Metabond® to securely attach headbars or other fixation devices to the skulls of mice. This ensures stable head fixation during in vivo physiological recordings and behavioral experiments.

Unlike acrylics, which require intermediate layers and can be messy, C&B-Metabond® creates a strong, durable bond without extra steps. Its biocompatibility and high bond strength make it a trusted choice for researchers worldwide.

Yes, several protocols detail its use. For example, the International Brain Laboratory provides a protocol for headbar implant surgery in mice, highlighting the effectiveness of C&B-Metabond® in their procedures.

For detailed information, including product specifications and purchasing options, visit here.

C&B-Metabond® is known for its exceptional bond strength and biocompatibility, making it ideal for sensitive research applications. It forms a stable hybrid layer that ensures reliable adhesion, which is crucial for procedures like head fixation in rodent models.

Unlike dental acrylics, which can be messy and require intermediate layers, C&B-Metabond® offers a streamlined application process. It eliminates the need for multiple steps, providing a cleaner and more efficient bonding experience.

C&B-Metabond® comes with a range of accessories, including adjustable applicator brushes, a ceramic mixing dish with a built-in thermometer, and different powder formulations. These accessories ensure precision and ease of use in the lab.

Yes, several published protocols, such as those from the International Brain Laboratory, outline the use of C&B-Metabond® for head fixation in rodents, making it a trusted choice in the research community.

C&B Metabond’s consistent performance and strong adhesion help minimize variability, ensuring that researchers can achieve reproducible results across different experiments