Get answers to common questions about 3M dental care products.
Filtek One Bulk Fill Restorative contains two novel methacrylate monomers that, in combination, act to lower polymerisation stress.
One monomer, a high-molecular-weight aromatic dimethacrylate (AUDMA) decreases the number of reactive groups in the resin. This helpsto moderate the volumetric shrinkage as well as the stiffness of the developing and final polymer matrix—both of which contribute to the development of polymerisation stress.
The second unique methacrylate represents a class of compounds called addition fragmentation monomers (AFM). During polymerisation, AFM reacts into the developing polymer, forming cross-links between adjacent polymer chains. AFM contains a third reactive site that may cleave through a fragmentation process during polymerisation. This process provides a mechanism for the relaxation of the developing network and subsequent stress relief. The fragments still retain the capability to react with each other or with other reactive sites of the developing polymer, making stress relief possible while maintaining the physical properties of the polymer.
Polymerisation shrinkage is simply the decrease in volume of the composite as it shrinks due to the curing process.
Polymerisation stress is a measurement of the impact on the interface of the composite, adhesive and tooth as a result of the composite shrinking upon curing. It is determined via a cusp deflection methodology and is more indicative of the actual clinical placement concerns.
Polymerisation shrinkage stress can contribute to adhesive failure between the tooth and composite, resulting in post-operative sensitivity, marginal leakage and marginal discolouration.
If the bond does not fail, polymerisation stress may cause fracture of the enamel adjacent to the cavosurface, which may contribute to marginal ditching over time. Polymerisation stress may also cause an in-ward deflection of the cusps in Class II restorations.
Clinpro White Varnish contains 22,600 ppm fluoride and an innovative tri-calcium phosphate ingredient, available exclusively from 3M ESPE. The tri-calcium phosphate in Clinpro White Varnish is milled with fumaric acid during manufacturing. This creates a protective layer around the calcium to keep it separate from the fluoride in the varnish. After Clinpro White Varnish is applied to the tooth surface, the rosin slowly dissolves and releases fluoride, calcium and phosphorus ions into the saliva. Fluoride and calcium react to form calcium fluoride which aids in sensitivity reduction.
Clinpro White Varnish adheres to teeth and also migrates to additional tooth surfaces. The varnish contains a modified rosin in an alcohol-based solution that allows Clinpro White Varnish to adhere to teeth to which it has been applied, but also to migrate to additional tooth surfaces, including spaces that may be difficult to reach.
Clinpro White Varnish is virtually invisible on the tooth. The product is white in color when applied to the tooth. 95% of subjects rated the appearance of Clinpro White Varnish to be acceptable.
Clinpro White Varnish can be applied to moist tooth surfaces. Saliva activates the varnish, forming a lacquer-like coating on the tooth surface. This coating adheres to the tooth surface to which it was applied, but also migrates to additional tooth surfaces.
The geometrically optimised combination of the three elements leads to the collimated and homogeneous beam profile:
• lens and
• diamond-turned reflector
Each component is specially designed to work well in combination with the other involved components, and the combination of all elements leads to improved technical performance.
The optics have been changed significantly (added lens, changed reflector geometry, additional reflective element between lens and light guide) to achieve a homogeneous and collimated beam. This leads to a more efficient usage of battery, resulting in a longer runtime.
The Elipar DeepCure LED Curing Lights have a higher output of 1470 mW/cm2 (-10%/+20%), compared to the output of its predecessors Elipar S10 LED Curing Light and Elipar LED Curing Light, at 1200 mW/cm (-10%/+20%).
Optimised light guide tip angle and tip height significantly reduces the opening angle required to reach a posterior restoration. This results in improved patient comfort and easier handling for the operator. Its black coating reduces stray light and prevents glare.
The top part of the housing is made of a new material which makes it more resistant against disinfecting agents. A new design and print makes the available functions more visible to the operator.
The issue with poly wavelength systems is that the beam profile is very inhomogeneous, leading to inconsistent/hard-to-predict curing results. We decided to use a single wavelength LED, as this delivers more consistent/predictable curing results even for materials using other photoinitiators e.g., Tetric EvoCeram Bulk Fill from Ivoclar Vivadent.
For more details, refer to the Clinical Performance section in our Technical Data Sheet.
3M has developed a complete solution of dental products and materials for promoting efficiency and outstanding patient outcomes in every step of the direct restorative procedure.
Key products in the list include:
• For bonding: Single Bond Universal Adhesive
• For restoring/filling: Filtek™ Z350XT Universal Restorative, Filtek™ Z350XT Flowable Restorative, Filtek™ One Bulk Fill Restorative
• For light curing: Elipar™ DeepCure-L LED Curing Lights
• For finishing/polishing: Sof-Lex™ Finishing and Polishing System
• For preventive care: Clinpro™ Tooth Creme
For more information, view the complete 3M Direct Restorative Workflow here.
All high-intensity curing lights (over 1100 mW/cm2) cause a certain amount of heat.
In the past, numerous in vivo studies have reported different results for the temperature at which thermal damage is initiated. This indicates that the range of safe temperatures in dental tissues, particularly in the dental pulp, is not known.
To address concerns of potential thermal irritation of the pulp, apply these two heat management techniques:
1. Cure with external cooling from an air flow.
2. Cure at intermittent intervals (e.g., 2 exposures lasting 10 seconds each instead of 1 exposure lasting 20 seconds)
A very short initial cure at some point of the processing before the final curing. Examples of use include the excess removal of light curing cements or the pre-cure step of 3M™ Protemp™ Crown Temporization Material.
With its unique tack-cure function, Elipar DeepCure LED Curing Lights produce a reproducible short light pulse by simply keeping the start button pressed. The tack cure function makes excess removal of light curing cements easier and more predictable.
Yes. Elipar DeepCure LED Curing Lights offer a switch-off function for the beeps.
Here are the steps to switch it off:
1. Put the handpiece in sleep mode, e.g., by setting it in the charger.
2.Take the device from the charger. Press first the TIME button, then the START button.
The beeps are now switched off. They can be reactivated by following the same procedure.
Clean all components with a soft cloth and, if necessary, a mild cleaning agent (e.g., dish washing detergent). Solvents or abrasive cleaners can damage the components. Cleaning agents must not enter the device. To disinfect all components, spray the disinfectant on a towel and use it to disinfect the unit. Do NOT spray the disinfectant directly on the device.
For detailed information on cleaning/disinfecting, see Instructions for Use.
We do not recommend a specific disinfectant, as we cannot control potential changes in composition. However, lab tests on the most common disinfectants/substances found that none had a negative impact on the plastic housing.
If in doubt, ask the manufacturer of the disinfectant if its constant use will damage plastic surfaces (for details see Instructions for Use).
Elipar DeepCure-L LED Curing Light: No.
However, the Elipar DeepCure-L LED Curing Light batteries can be replaced through the authorised service centre.
You can order authentic 3M dental care products from our authorised distributors here. By purchasing from our secure supply chains, you’ll stand to protect your patients – and practice – from potentially hazardous grey market products.
Please contact us via phone or email here to learn more about becoming an authorised 3M distributor.