Improve resin curing with better techniques and new lights

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January 2016, Volume 9 Issue 1
ISSN 2380-0429
©2016 CR Foundation®
Improve Resin Curing with Better Techniques and New Lights
Improvements in LED curing lights and light-cured materials include:
• More right-angle tips with shorter tip height for better intraoral access
• Higher intensity output for dependable cure in challenging situations
• Better curing compatibility of current materials with all LED lights
The clinical challenge continues to be the uncertainty of knowing if adequate light
penetrates to the depth of the material. It may appear hard on top, but not be fully
polymerized on the bottom. See Clinicians Report May 2012 for a discussion of
important curing light parameters, May 2013 for information on protective barriers
over lights, and October 2013 for a discussion of the shortcomings of inexpensive
“online bargain” lights.
This report provides comparative information on the current use of lights and research data to assist in proper curing technique. Features of
18 cordless LED curing lights are also shown.
Gordon’s Clinical Observations: You may think you have an adequate curing light, but do you? Sampling studies indicate that as many as half or more
of curing lights in use are inadequate to provide acceptable cure of dental resins. “Bulk-fill” resins are popular and an adequate light is necessary to
cure them. Numerous changes and improvements have been made in resin curing lights and many new ones are available. Observe carefully this
research report on clinical techniques and 18 curing lights and decide if you need to improve your resin curing.
Continued on page 2
Surgical / Implant Motors are Becoming a Necessity
Implant placement and other surgical procedures have become commonplace in dental practice, but there are many
factors that can influence surgical success or failure. Optimum surgical techniques are necessary for success: it is necessary
to have an appropriate and dependable surgical motor system with control over speed, torque, water coolant, and sterility.
This report evaluates the state of surgical/ implant motors and makes suggestions for optimum surgical success.
Gordon’s Clinical Observations: The CR staff is very pleased that more dentists are placing implants and restoring them.
Over the last several years, numerous implant companies have developed relatively affordable and easily understandable
implant placement kits. A mandatory item is an adequate surgical motor and accessories, which many dentists do not
have in their offices. Such devices allow easy determination of speed of cutting, and irrigation delivery for aseptic
placement of implants. CR scientists and clinicians have evaluated and compared two popular surgical motor systems for you
in this report.
First Look: What is the Pinhole Periodontal Surgery Technique?
Every dentist is frustrated with what to do when gingival tissues recede exposing sensitive
dentin and creating an unesthetic appearance.
This report provides a first look at the Chao Pinhole Technique as reviewed by CR
periodontist consultants.
Gordon’s Clinical Observations: You have probably seen reference to this concept in recent
publications. A promising technique is evolving. See this first look provided by CR
periodontist consultants.
Continued on page 4
Continued on page 5
The following products were rated excellent or good by CR Evaluator use and science evaluations.
Products Rated Highly by Evaluators in CR Clinical Trials
Page 4: Training Model Kits: Peri-implantitis, Periodontal Disease, and Implant Crown and Bridge
Page 5: Making Cone Beam Easy to Use: CS 8100 3D by Carestream
Page 6: MTA Capsules; Ionosit Baseliner; Disposable Soft Touch Oral Evacuator; Polishette Mini Shaped Polishers
Page 8: Fiber Optic Dental Post; Core-Flo DC Lite; Iris White to Clear; ACTIVA BioACTIVE-Base/Liner
Modern surgical / implant
systems mitigate many 
risks of dental surgery.
New tip designs with a larger angle and smaller height allow better
intraoral access for optimum light delivery.
This patient had gingival recession and lack of attachment on the
mandibular right central incisor. After using the pin hole
technique, the gingiva has gingival coverage and new attachment. 
Before Treatment Six Months After Treatment
Improved tip designsOld tip
designs
55° anglelarge
height
small
height
75° angle
Clinicians Report Page 2 January 2016
Clinician Survey (n=1053)
• Types of lights in use: 88% LED; 16% tungsten halogen; 11%
plasma arc
• Brands most used: 35% Valo or Valo Cordless; 14% Demi or Demi
Plus; 8% Optilux 500 or 501 (tungsten halogen); 8% Sapphire or
Sapphire Plus (plasma arc); 7% Elipar S10; 7% Fusion; 5% Demi
Ultra; 5% Bluephase G2; and 94 additional models
• Overall satisfaction: 47% excellent; 41% very good; 10% good; 1%
fair; 0% poor
• Who does curing? 41% doctor; 30% either; 29% assistant
• Are orange safety glasses worn? 77% no; 12% yes or frequently
• Output checked with radiometer? 27% frequently; 52%
occasionally; 21% never
• Typical cure time: 27% 20sec; 25% 10sec; 16% 5sec; 11% 1sec–3sec;
10% multiple short cures. See curing guidelines below in box.
• What problems have you experienced? 54% none; 14% battery;
13% dirty light guide; 12% intraoral access; 10% charging base
Survey Summary: The survey revealed several areas for potential
improvement, including assistant curing with proper aiming; choosing a
light with better design features and higher intensity output; and more
careful monitoring. Clinicians are satisfied with current lights but may not
realize possible inadequacies. LED curing lights dominate clinical
dentistry, although a surprising number of tungsten halogen and plasma
arc lights continue to be used.
Clinical Considerations and Tips
Optimum light delivery
• Position tip directly over material, perpendicular to surface, as close as possible without touching material to
deliver maximum energy. 
• Use a large diameter tip to cover entire restoration during cure. If not possible, extend cure time or use
multiple exposures while moving tip over restoration to ensure full coverage. 
• Wear orange safety glasses so you can watch and maintain accurate position without potentially damaging
retinas with blue radiation (preferably assistant accomplishes cure).
• CR testing demonstrated the importance of good alignment. The light energy reaching the resin at the bottom
of a proximal box was diminished by as much as 90% due to distance and surrounding structures. Misalignment
of the light guide by just 2–3mm or a 10°–30° tilt decreased the remaining energy by an additional 5–50%.
Intensity and cure time
General curing guidelines for each layer of a direct resin (based on controlled testing):
• Lower intensity light (500–1000 mW/cm2): single 15–20 second exposure
• Higher intensity light (1000–2000 mW/cm2): single 10 second exposure or 2 X 5 second exposures
• Very high intensity light (>2000 mW/cm2): 2 X 3 or 2 X 5 second exposures, with a short pause between exposures to allow heat to dissipate
New LED lights exceed 1000 mW/cm2 output, and many exceed
2000 mW/cm2. These powerful lights harden a typical layer of
composite resin in just a couple of seconds. However, such short
exposures may not completely polymerize (convert) the material, nor do
they provide a margin of safety for such clinical variables as distance,
shadowing by structures, darker color, thicker layer, or type of resin.
• Use a test block to verify cure of your materials. Remember
that even when the surface appears hard, more time may be
needed for full polymerization.
• Use a radiometer to periodically verify that your lights are maintaining a consistent output.
Controlling heat
Curing lights can potentially heat hard and soft tissues to dangerous levels. Increasing pulp temperature by more
than 5.5° C is generally considered harmful.
• High intensity lights caused enamel surface temperaturesto rise up to 13° C in less than 5 seconds. Pulp
temperatures increased 0.7-2.8° C in 5 seconds, 1.2-2.9° C in 10 seconds, and 1.3-4.4° C in 20 seconds.
• When curing material close to the pulp, decrease intensity or hold light farther away to minimize heat
buildup.
• A stream of air directed over tooth during cure was the most effective method to reduce heating.
Compatibility with Resins
In the past, some translucent resins would not cure with LED lights because the narrow blue spectrum (around 460 nm) did not match their
chemical photoinitiators. Light manufacturers began using multiple LEDs (around 410 and 460 nm) to produce a broad spectrum that was
compatible with all materials. Resin manufacturers also responded by re-formulating their materials using multiple photoinitiators. Currently, 
CR is not aware of any direct restorative material that is incompatible with LED lights; however, many materials contain some 
photoinitiator sensitive to lower wavelengths, so broad spectrum LED lights are still preferred for best polymerization.
Improve Resin Curing with Better Techniques and New Lights (Continued from page 1)
Test setup: Tooth with proximal box
restoration positioned over the
MARC RC sensor. Light guides were
positioned in various degrees of
misalignment to test effect. 
The Bluephase Meter II (Ivoclar
Vivadent, $372) is an excellent
accessory radiometer that can be
used to check all the curing 
lights in the office.
Resin curing rings or blocks are included with many lights and can be used to 
estimate the cure times needed with your materials
Place resin
Cure
Test bottom surface
Poorly aimed
light guide
Light sensor
under restoration
Clinicians Report Page 3 January 2016
Improve Resin Curing with Better Techniques and New Lights (Continued from page 2)
Features of Cordless LED Curing Lights
The following table shows features and performance ratings of 18 cordless LED curing lights. Numerous additional models are available. CR rated
lights based on output characteristics, ease of use, controls, design features, and accessories. All lights performed very well, and several have been
past CR Choices. Clinicians can base purchase decision on desired features.
Name, 
Company
Suggested
Retail Cost Tip Photo
Maximum
Output of
Each Mode
(mW/cm2) *
Effective
Tip
Diameter
Angle 
of Tip 
Intuitive
Controls
Broad
Spectrum
Handpiece
Weight
Includes
Radiometer
Overall Features
and Performance
Valo Cordless, 
Ultradent
$1581
3600
2150
1600
9.6mm 90°
Excellent–
Good
Yes 170g No Excellent–Good
Slim Blast (90° tip),
First Medica
$649
2050
1650
7.0mm 75° Excellent No 95g No Excellent–Good
Fusion 4.0, 
DentLight
$949
3200
1700
9.6mm 70° Excellent No 115g No Excellent–Good
Sirius Max, 
National Dental
$1,495
5700
3400
2150
9.3mm 90°
Excellent–
Good
No 175g No Excellent–Good
Ascent PX, 
Cao Group
$1,030 
2200
1850
8.4mm 90°
Excellent–
Good
Yes 205g Yes Excellent–Good
Elipar DeepCure-S, 
3M ESPE
$1,788 2150 8.9mm 70° Excellent No 250g Yes Excellent–Good
The Light 405, 
GC America
$973
1750
950
7.9mm 90°
Excellent–
Good
Yes 105g No Excellent–Good
Bluephase Style, 
Ivoclar Vivadent
$1,395 1450 8.9mm 70° Excellent Yes 120g No Excellent–Good
S.P.E.C 3, 
Coltene Whaledent
$1,462
4550
2300
9.9mm 75°
Excellent–
Good
No 140g No Excellent–Good
Paradigm DeepCure, 
3M ESPE
$850 2150 8.9mm 70° Excellent No 180g No Excellent–Good
SmartLite FOCUS, 
Dentsply
$1,154 1350 7.4mm 90° Excellent No 85g No Excellent–Good
The Cure II, 
Spring Health
$591 1600 8.4mm 75°
Excellent–
Good
No 90g No Excellent–Good
Bluephase 20i, 
Ivoclar Vivadent
$1,900
2450
1400
700
7.2mm 60°
Excellent–
Good
Yes 240g No Excellent–Good
FlashMax P3 460 4W, 
CMS
$1,495 2350 7.9mm 80° Excellent No 125g No Good
LED Turbo (gun-style), 
Vector
$700
3250
1500
7.4mm 55°
Excellent–
Good
Yes 175g Yes Good
Bluephase G2, 
Ivoclar Vivadent
$1,395
1300
750
9.0mm 70°
Excellent–
Good
Yes 240g No Good
Demi Ultra, 
Kerr
$1,812 1800 7.6mm 60° Excellent No 210g Yes Good
Ultra Blast, 
First Medica
$599
5050
2200
9.3mm 50° Excellent No 190g No Good
CR Conclusions:
Optimum light cure requires both good clinical technique and well-designed lights. All lights tested performed well and were clinically adequate.
Brands with the best combination of high output, excellent intraoral access, and convenience features were: Valo Cordless (Ultradent), Slim Blast
(First Medica), Fusion 4.0 (DentLight), Sirius Max (National Dental), Ascent PX (Cao Group), Elipar DeepCure-S (3M ESPE), The Light 405 (GC
America), and Bluephase Style (Ivoclar Vivadent). 
* Intensity, energy, and spectral emissions were measured using MARC RC (BlueLight Analytics)
Clinicians Report Page 4 January 2016
CR Survey Results (n=850)
• Do you currently place dental implants?
No ...............................59.3%
Small diameter only .......5.1%
Large diameter only .....11.5%
Both ............................24.1%
(40% of CR respondents are currently
placing implants. This is much higher
than national average.)
• Which brand of dental implant motor
do you use MOST?
W&H.............................26%
Aseptico..........................20%
Nobel Biocare .................16%
Nouvag...........................13%
Dentsply...........................8%
Restorative handpiece .......6%
Saeshin .............................5%
Other................................6%
Comparison of Two Popular Surgical / Implant Motors
Summary of Chart
• W&H Implantmed SI-915 had higher torque limits (~70 Ncm), can
be thermal washer disinfected, and has other useful functions.
• Aseptico AEU-6000-70V had endo functionality and an intuitive
console that facilitated easy, incremental adjustment of settings.
• Both models had foot controls, presets, and an autoclavable motor
and cord assembly.
Surgical / Implant Motors are Becoming a Necessity (Continued from page 1)
CR Conclusions:
Surgical / implant motor systems are standard of care for surgical procedures because, unlike restorative handpieces, they aseptically deliver accurate
torque and rpm without exhaust. These systems are recommended for procedures such as: implant placement, surgical extraction, bone shaping,
etc. Modern surgical / implant motor systems reduce risk of common dental procedures and should have a place in your armamentarium.
Clinical Tips
• Should you buy a premium motor? In addition to basic models
(shown at left), most companies also offer premium motors. Although
expensive, premium motors include features which can increase
accuracy and convenience (data recording function, dynamometer,
multiple user interface, etc.).
• Should you buy an inexpensive motor? Consider the total cost.
Does it include all needed functions? Consider warranty, availability
of support, customer service, repair, and access to a back-up motor.
• Maintenance by staff member can ensure clean, accurate equipment
and a reduction in expensive and inconvenient repairs. 
• Learn and use presets which simplify procedures through saved
torque, rpm, and flow settings.
• Get educated:
– Surgical technique specifics
– Workup (assessing bone quality, treatment planning, etc.)
– Reducing risks and managing complications
• If inexperienced with surgical motors, start simple to ensure
positive initial experiences. Schedule a well-planned case at the end of
the day to reduce distractions. Progress to more difficult cases as you
and your staff become more confident with surgical motors and
implant placement.
Why a Surgical / Implant Motor?
Multiple Uses:
• Implants
• Surgical extraction
• Bone shaping 
• 3rd molar extraction
• Endodontics (some motors) 
Reduced Risk:
Company
Model
Aseptico
AEU-6000-70V
W&H
Implantmed SI-915
Photo
Price (including handpiece) $4,495 $4,910 
Motor Speed 300–40,000 rpm 300–40,000 rpm
Ease of Use Excellent Excellent–Good
Torque Range (at handpiece) up to 50 Ncm up to 70 Ncm
Torque Control Accuracy Excellent–Good Excellent–Good
Foot Control
Max Irrigation Flow Rate120 ml/min 100 ml/min
Endo Functionality Rotary No
Programmable Presets Yes, 5 (+5 Endo) Yes, 5
Risk Solution
Infection Sterility
Air emphysema No exhaust
Implant failure Accurate torque, rpm, and
coolant controls
Products Rated Highly by Evaluators in CR Clinical Trials (Continued from page 1)
Excellent Education and Training Models for Peri-implantitis, Periodontal Disease, and Implant Crown and Bridge
Patient education and compliance is enhanced by use of informational and educational models. Three models have
recently received excellent reviews. They educate on conditions of gingivitis, implant periodontal trauma, bone loss,
and implant crown and bridge. The three sets are sold separately.
Advantages: 
• Accurate and easy to demonstrate conditions to
patient
• Easily understood by patients
• Patients received their use much better than
pamphlets
• Made from durable high-quality materials
Limitation:
• Pieces and parts are easily removed and require
attention and proper storage to avoid loss
#1: $215/Implant Crown and
Bridge (Item #P9-X.1192)
#2: $205/Stages of Perio 
(Item #P23-PD.1)
#3: $225/Peri-implantitis 
(Item #PE-IMP004)
Training Model Kits
Kilgore International
CR Conclusions: 94% of 15 CR Evaluators stated they would incorporate Training Model Kits into their practice.
94% rated it excellent or good and worthy of trial by colleagues.
#1 #2
#3
User Feedback: 
• Most common uses:
– 80% Sinus location
– 73% Endodontic treatment
– 67% Implant planning
– 60% Inferior alveolar nerve location
– 53% Odontogenic lesion location or
other pathologies
• Cost rating: Excellent–Good
• Ease of use: Excellent
• 3D image resolution: Excellent
• 2D image resolution: Excellent
• Limiting backscatter: Good
• Customer service: Excellent–Good
• Overall satisfaction: Excellent
Note: Most users surveyed currently using default
Carestream imaging software
Making Cone Beam Easy to Use: CS 8100 3D by Carestream
• Carestream has multiple newer cone beam systems
featuring modern diagnostic and imaging capabilities.
• Recently, CR evaluated the most popular Carestream
system, CS 8100 3D, in-house over several months.
• See Clinicians Report March 2014 to compare cost
and features of this device to others.
• Clinician input from additional current users of this
device was received by survey (15 respondents: 7
general dentists, 6 endodontists, 1 periodontist, and 1
oral maxillofacial surgeon).
Features: 
• Quick scanning and data acquisition option (15 sec. or less)
• 2D options: Extraoral bitewing, periapical, panoramic
• CAD/CAM compatible
• Four field of view options (4x4, 5x5, 8x5, 8x9 cm)
• Compact device size: 3.5 ft x 4.5 ft; 7.8 ft tall
• Low effective radiation dose (average 3D fast scan: 27–71 µSv)
Limitations:
• Fields of view not conducive to larger cases such as some oral
surgery. Other Carestream models with larger fields of view are
available. 
• Not indicated for orthodontic use (no cephalometric scan).
Carestream model CS 8100 SC has cephalometric capability.
• As with other cone beam systems, fine detail visible in 2D
radiography may not be apparent in 3D scans (bone detail,
caries, etc.). See manufacturer instructions for indicated uses.
Products Rated Highly by Evaluators in CR Clinical Trials (Continued from page 4)
CR Conclusions:
Easy-to-use system with acceptable resolution suggested for general dental practice, endodontics, and some implant
placement. 80% of surveyed users say CS 8100 3D is worth the initial investment.
Suggested Retail Cost:*
$100,000
CS 8100 3D
Carestream
2D panoramic
(zoomed in)
3D anatomical
reconstruction
3D Slice #1: 
Axial view
3D Slice #2: 
Coronal view
3D Slice #3:
Saggital view
CS 8100 3D offers high-quality 2D and 3D images for patient assessment
Featured clinical case: Patient with endodontic and restorative treatment on right mandibular second molar 
Clinicians Report Page 5 January 2016
The Chao Pinhole Surgical Technique
Most dentists know of and/or accomplish the gingival coronal repositioning
technique in which an incision is made apically in the gingival tissues and the soft
tissue is repositioned coronally to cover tooth structure where recession has occurred.
Free gingival grafting to treat recession is also a well-known procedure, but results in
significant discomfort and delayed healing.
The Chao pinhole technique uses specially designed surgical instruments inserted
into small holes made in the gingiva to free the gingival tissues. Collagen is placed in
the sites of the recession, the gingival tissues are moved coronally, and the gingival recession sites are covered. Assuming that muscle attachments
have been released and patients are cautioned about avoiding aggressive oral hygiene, success of the technique appears promising, but long-term
observation is ongoing. CR periodontist representatives have taken Dr. John Chao’s course as a part of this evaluation.
The following are comments from CR representatives relative to the technique:
• Patented surgical instruments allow relatively easy freeing of the gingival tissues.
• The technique has a learning curve, as with any new technique.
• Trauma to the patients is markedly reduced when compared to previous techniques.
• Healing is faster than other techniques.
• Relatively long-term results are very promising.
• Although the course was well received, it was expensive.
The photos in this article (provided by George Bailey, DDS, Periodontist) show six-month clinical success with this procedure. 
Chao Pinhole Surgical Technique
Chao Seminars
$5,950/Two-day course
$4,000/13 instrument set with cassette
The “pinhole” technique was accomplished on this patient.
Before Treatment Six Months After Treatment
CR Conclusions:
CR clinical staff and periodontist consultants suggest observation of the pinhole technique as it continues to gain acceptance and use. At first look,
it appears to be a viable alternative to more extensive procedures, and it deserves your consideration.
First Look: What is the Pinhole Periodontal Surgery Technique? (Continued from page 1)
* Additional costs may apply for
imaging software and/or practice
management software bridge capability
Clinicians Report Page 6 January 2016
Products Rated Highly by Evaluators in CR Clinical Trials (Continued from page 5)
Universal Pre-Mixed MTA Repair Cement with Proven Formulation
MTA (Mineral Trioxide Aggregate) cement is delivered in easy-to-activate capsules that are triturator activated.
Capsule content is easily extruded using most available capsule dispensers or the Zendo Capsule Dispenser. Powder
is fine hydrophilic particles of several mineral oxides that mix with MTA liquid to a gel for easy placement. Sold
online only for cost savings.
Advantages: 
• Faster set time than most popular MTA
• Easy dispensing and handling
• Consistent mix and smooth consistency
• High radiopacity
CR Notes:
• Capsule mixing time is 30 seconds with high frequency
amalgamator (about 4,300 oscillations/minute)
• Main uses: endo repair, pulp capping, root
perforations, etc.
$40/2 caps
MTA Capsules
Zendo-online.com
CR Conclusions: 86% of 21 CR Evaluators stated they would incorporate MTA Capsules into their practice. 90%
rated it excellent or good and worthy of trial by colleagues.
Disposable High Velocity Evacuation (HVE) Tips with Soft Latex-Free Edges
High velocity evacuation (HVE) tips designed with slots in the tip to reduce tissue grab and soft latex-free edges to
increase patient comfort and reduce trauma to tongue, gingiva, and other soft tissues. Tips are more acceptable for
retraction than other versions and are sold in bags of 50.
Advantages: 
• Prevents sucking up tongue and other soft oral tissues
• Comfortable and appreciated by patients
• Flat end seated tightly in to HVE valve
Limitation:
• Slots somewhat reduce suction
10¢ Each
Disposable Soft Touch
Oral Evacuator
Premium Plus Dental
Supplies
CR Conclusions: 76% of 25 CR Evaluators stated they would incorporate Disposable Soft TouchOral Evacuator
into their practice. 76% rated them excellent or good and worthy of trial by colleagues.
Single-Use, Mini Shaped Cups and Points for Shaping and Polishing Resin-Based Composite 
Polishette Polishers are silicone with abrasive impregnated cups and points that have tapered shank necks for
visibility. They are designed for finishing and polishing composite and hybrid-ceramic materials. Order of use:
green/removers containing silicon carbide particles (very aggressive); rose/smoothers containing aluminum oxide
particles (smooth-gloss surface); then lavender/shiners containing diamond particles (high gloss).
Advantages: 
• High gloss finish is easy to accomplish
• Good wear resistance
• Color-coded tips
• Small size provided good access and less waste
• Easy to use
Limitation:
• Three step finishing required more time for a few
Evaluators
$30/30 removers and
smoothers ($1/Polisher)
$19/10 Shiners
($1.90/Polisher)
Polishette Mini Shaped
Polishers
Kenda AG
CR Conclusions: 74% of 22 CR Evaluators stated they would incorporate Polishette Mini Shaped Polishers into
their practice. 82% rated it excellent or good and worthy of trial by colleagues.
Base Liner with Properties of Glass Ionomer and Composite in One Material
Ionosit is a base liner alternative of resin-modified glass ionomer that has both fluoride and zinc ions within its
material. Easily dispensed and placed from syringe delivery. Ideally used under composite and amalgam restorations,
and to block out undercuts in inlay/onlay restorations. Light cure produces a hard surface.
Advantages: 
• Easy to use syringe system
• Self-mixing delivery
• Contains both fluoride and zinc
• Good consistency for placement and command light cure
Limitation:
• Long-term clinical results are being established
$89.95/3-gram syringe
($57.44/ml)
Ionosit Baseliner
DMG America
CR Conclusions: 90% of 21 CR Evaluators stated they would incorporate Ionisit Baseliner into their practice. 95%
rated it excellent or good and worthy of trial by colleagues.
Clinicians Report Page 8 January 2016
Products evaluated by CR Foundation® (CR®) and reported in Gordon J. Christensen CLINICIANS REPORT® have been selected on the basis of merit from hundreds of products under evaluation. CR® conducts research at
three levels: (1) Multiple-user field evaluations, (2) Controlled long-term clinical research, and (3) Basic science laboratory research. Over 400 clinical field evaluators are located throughout the world and 40 full-time
employees work at the institute. A product must meet at least one of the following standards to be reported in this publication: (1) Innovative and new on the market; (2) Less expensive, but meets the use standards; 
(3) Unrecognized, valuable classic; or (4) Superior to others in its broad classification. Your results may differ from CR Evaluators or other researchers on any product because of differences in preferences, techniques,
batches of products, and environments. CR Foundation® is a tax-exempt, non-profit education and research organization which uses a unique volunteer structure to produce objective, factual data. All proceeds are 
used to support the work of CR Foundation®. ©2016 This report or portions thereof may not be duplicated without permission of CR Foundation®. Annual English language subscription $199 worldwide, plus GST 
Canada subscriptions. Single issue $18 each. See www.CliniciansReport.org for non-English subscriptions.
Products Rated Highly by Evaluators in CR Clinical Trials (Continued from page 6)
Fiber-Optic Resin Posts with Excellent Light Transmission for thorough Command Cure of Resin Cements
Fiber-reinforced resin-based composite post using optical glass for exceptional light transmission allowing fast use
and cure of light activated resins in deep canals. Posts have flexibility, strength, and high radiopacity. Use of light
cure resins can save time. Now available in six sizes (1.10, 1.35, 1.47, 1.67, 1.83, and 2.04).
Advantages: 
• Simple to use and size
• Excellent light transmission for thorough cure of cement
• Radiopaque
• Excellent drills that remove gutta percha easily
Limitation:
• No major limitations noted by Evaluators
$13.48/Post
Fiber Optic Dental Post
iLumi Science
CR Conclusions: 83% of 21 CR Evaluators stated they would incorporate Fiber Optic Dental Post into their practice. 87%
rated it excellent or good and worthy of trial by colleagues.
5% Sodium Fluoride Varnish with Smooth Esthetic Appearance following Application
Fluoride Varnish is sweetened with xylitol and sucralose. As it is applied it is a white opaque color that dries clear
and smooth. Iris White to Clear varnish is packaged in an easy to use single-patient dose and is available in boxes of
30, 200, and 500. The gluten-free varnish is available in mint, strawberry, and cherry flavors.
Advantages: 
• Clear esthetic color
• Has well accepted pleasant flavor
• Varnish is easy to apply with a smooth consistency
• Applicator is conveniently included
Limitations:
• Some Evaluators desired larger dose
• Rapid set was not desired by a few Evaluators
$196/Box of 200
(98¢/Patient)
Iris White to Clear
Benco Dental
CR Conclusions: 73% of 22 CR Evaluators stated they would incorporate Iris White to Clear into their practice.
73% rated it excellent or good and worthy of trial by colleagues.
Bioactive Base Liner with Excellent Ease of Use and Desirable Physical Properties
Composite resin in a bioactive matrix formulated to be moisture tolerant. It is formulated with an ionic resin
matrix, a shock-absorbing resin component, and bioactive fillers that mimic the physical and chemical properties of
natural teeth. CR Evaluators enjoyed the favorable physical properties and ease of use. ACTIVA does not contain
Bisphenol A, Bis-GMA, or BPA derivatives. CR measured low shrinkage stress.
Advantages: 
• Excellent direct application placement tip
• Excellent viscosity and flow
• Easy to use and work with
• Sets up quickly and strong
Limitation:
• Less radiopaque than desired by some Evaluators
$135/5ml syringe
($27/ml)
ACTIVA BioACTIVE
Base/Liner
Pulpdent Corporation
CR Conclusions: 71% of 24 CR Evaluators stated they would incorporate ACTIVA BioACTIVE Base/Liner into
their practice. 83% rated it excellent or good and worthy of trial by colleagues.
Well-Known Core Build-Up Material with an Additional New More Flowable Version
Alternative viscosity for a well-known core build-up material. Core-Flow DC Lite has improved flow from dual-
barrel syringe mixing/dispensing. Allows self-leveling for excellent adaptation, has more radiopacity, and fast dual-
cure. Core-Flo DC Lite is available in natural/A1 and opaque white shades.
Advantages: 
• Dispenses easily and flows well into undercuts and “potholes”
• Good bond to tooth
• No porosity or voids visible after prep
• Good contrast with tooth and good radiopacity
Limitation:
• Intraoral set time was too fast for a few 
Evaluators
$216/Kit
($14.33/ml)
Core-Flo DC Lite
Bisco
CR Conclusions: 75% of 21 CR Evaluators stated they would incorporate Core-Flo DC Lite into their practice.
80% rated it excellent or good and worthy of trial by colleagues.