Addent, Inc. - Advancing Dental Excellence

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Multiple Benefits of Warming

There are a variety of benefits and protocols for warming in dentistry. From composites to anesthetics – dentists need a flexible way to warm while they work.

The Calset system includes a warmer with a variety of trays available. The trays can be interchanged to adapt to your protocols.

The Benefits of Warming Composites
• Shortens curing time by over 80%
• Improves composite flow by 68%
• Reduces Microleakage
• Improves physical properties
• Decreases shrinkage stress


Calset Warmer Features Adjustable, Consistent Heating
• Warms Finishing Instruments
• Maintains constant temperature
• Heats composite material to 98°F (37°C), 130°F (54°C) or 155°F (68°C)





What is Thermally Assisted Polymerization? Why should I warm my composite?

“I have been a Calset user for the last 7 years and it has never let me down! These are built to last! The New Calset Multi-Tray does everything and is my favorite version of the Calset tray configurations. It warms my loaded composite PLT, and heats additional PLTs perfectly. It also works excellently to heat composite syringes, instruments, and even anesthetic cartridge.”

– Matt Nejad, DDS – Instructor at Biomimetic Dentistry CE

“I’ve been using the Calset warmer for several years and it has become an indispensable part of my practice. Not only does it make today’s heavily filled composites easier to express, but heating enhances the physical properties of the resins, making for a stronger and more durable restoration.”

– Douglas L. Lambert, DDS, FACD, FASD, FASDA, FICD, ABAD


Viscosity Comparable to Flowables with Less Stickiness

Increases Microhardness

Heating composite increases micro-harness and flowability, resulting in easier placement and greater monomer conversion.


  1. Effect of Preheating on Microhardness & Viscosity – Ayub Santos
  2. Effect of Preheating on Microhardness and Viscosity of 4 Resin Composites – Karen V. Ayub, DDS, MSc; Gildo C. Santos, Jr., DDS, MSc, PhD; Amin S. Rizkalla, BSc, MEng, PhD; Richard Bohay, DMD, MSc; Luis Fernando Pegoraro, DDS, MSc, PhD; José H. Rubo, DDS, MSc, PhD; M. Jacinta M.C. Santos, DDS, MSc, PhD
  3. The Effect of Temperature on Hardness of a Light-curing Composite – I. Krejci
  4. Influence of pre-cure temperature on Vickers microhardness – Torres Caneppele
  5. Prewarming effect on adaptation, porosities, and strength of a composite resin.  K.H. Bolding, A.E. Hill, D. Tantbirojn, A. Versluis

Increased Monomer Conversion & Shorter Cure Times

Monomer conversion is significantly increased with shorter cures times, when composite is heated.


  1. Composite Pre-heating: Effects on marginal adaptation, degree of conversion and mechanical properties – Nívea Regina Fróes-Salgadoa, Luciana Maria Silvaa, Yoshio
  2. Curing Efficiency of a Direct Composite at Different Temperatures – L. Littlejohn
  3. Monomer Conversion of Pre-heated Composite – M. Daronch
  4. Pre-heated Resin Composite. Temperature Effects on Monomer Conversion and Kinetics – M. Daronch
  5. Pre-Heating Composite: Temperature Effect on Monomer Conversion and Contraction Stress (Poster) – M. Daronch
  6. Pre-heating of high-viscosity bulk-fill resin composites: Effects on shrinkage force and monomer conversion. Journal of Dentistry – Taubock Tobias T, Tarle Zrinka, Marovic Danijela, Attin Thomas.
  7. The Effect of Temperature on Composite Polymerization Stress and Degree of Conversion – Fernando C. Calheiros, Marcia Daronch, Frederick A. Rueggeberg, Roberto R. Braga

Deeper Cures

Heated composite increased the monomer conversion rate, depth of cure and surface hardness with shorter cure times.


  1. Effect of pre-heating on depth of cure and surface hardness of light-polymerized resin composites – AJD Munoz
  2. The Influence of Temperature on the Efficacy of Polymerization of Composite Resin – Wedad Y. Awiliya, BDS.MSC
  3. Improving the Polymerization of Composite Resins – Mitch Conditt, Karl Leinfelde
  4. Polymerization Kinetics of Pre-Heated Composite – M. Daronch, F. A. Rueggeberg, M. F. De Goes, R. Giudici
  5. Temperature Influence on the Depth of Cure of a Composite – P. Burtscher
  6. Thermal Effects on Composite Photopolymerization Monitored by Real-time NIR – M. Trujillo
  7. Thermally Assisted Flow and Polymerization of Composite Resins – Joshua Friedman

Bonding and Adhesion

Heated composite demonstrated higher flexural strength and adhesion to dentin.


  1. Effect of intermediate agents and pre-heating of repairing resin on composite-repair bonds – Papacchini F., Magni E., Radovic I., Maxxitelli C., Monticellia F., Goracci C., Polimeni A., Ferrari M.
  2. Effect of pre-cure temperature on the bonding potential – Amerigo Cantoro, Cecilia Goracci, Federica Papacchini, Claudia Mazzitelli, Giovanni Maria Fadda, Marco Ferrari
  3. Flexural Strength of Preheated Resin Composites and Bonding Properties to Glass-Ceramic and Dentin – Matthias Richard Kramer, Daniel Edelhoff and Bogna Stawarczyk
  4. Thermal and bioactive optimization of a unidose 3-step etch-and-rinse dentin adhesive – Pascal Magne, DMD, PhD and Adriana Lemos Mori Ubaldini, DDS, MS
  5. Effect of Pre-heating on Microtensile Bond Strength of Composite Resin to Dentin –  A. Davari, A. Daneshkazemi, B. Behniafar, M, Sheshmani

Repeated Heating

Reheating or extended heating of composite does not effect monomer conversion values.


  1. Effect of Repeated and Extended Heating on Conversion of Composites – M. Daronch
  2. Effect of Specimen Temperature on the Polymerization of a Resin-composite – Richard B. Price, J.M. Whalenb, Thomas B. Price  Christopher M. Felix, John Faheye

Doesn't Alter Physical Properties

Heating composite did NOT alter the mechanical properties but provided enhanced adaptations to the preparation wall.


  1. Composite Pre-heating: Effects on marginal adaptation, degree of conversion and mechanical properties – Nívea Regina Fróes-Salgadoa, Luciana Maria Silvaa, Yoshio Kawanob, Carlos Franccia, Alessandra Reisc, Alessandro D. Loguercio
  2. Effect of multiple preheating cycles on hardness of composite materials – A. Pokorny
  3. Effect of Precuring Warming on Mechanical Properties of Restorative Composites – Kareem Nada, Omar El-Mowafy
  4. Effect of Preheating and Fatiguing on Mech Prop of Comp Resin – AA Abdulmajeed
  5. Effect of Preheating and Precooling on the Flexural Strength and Modulus – F Sharafeddin
  6. Effect of Pre-Heating on Some Physical Properties of Composite Resin – Myoung Uk Jin, Sung Kyo Kim
  7. Effect of Pre-heating on the Viscoelastic Properties of Dental Composite Under Different Deformation Conditions – Kyung Hyun Ahn, Sanghyuk Lim, Kee Yeon Kum and Seok Woo Chang
  8. Effect of Pre-heating on the Viscosity and Microhardness of a Resin Composite – S. Lucey, C. D. Lynch, N. J. Ray, F. M. Burke & A. Hannigan
  9. Pre-heating mitigates composite degradation – Jessika Calixto da SILVA, Rogério Vieira REGES, Inara Carneiro Costa REGE, Carlos Alberto dos Santos CRUZ, Luís Geraldo VAZ, Carlos ESTRELA, Fabrício Luscino Alves de CASTRO
  10. Effect of pre-heating methods and devices on the mechanical properties, post-gel shrinkage, and shrinkage stress of bulk-fill materials – Maria Tereza Hordones Ribeiro, Gabriel Felipe de Bragança, Laís Rani Sales Oliveira, Stella Sueli Lourenço Braga, Helena Letícia Quirino de Oliveira, Richard Bengt Price, Carlos Jose Soares

Lower Water Sorption/Solubility Values

Higher temperatures and shorter cure times of heated composite led to lower sorption and solubility values.


  1. Temperature and Curing Time Affect Composite Sorption and Solubility – Fabricio Luscino Alves de Castro, Bruno Barbosa Campos, Kely Firmino Bruno, Rogerio Vieira Reges

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Addent, Inc. - Advancing Dental Excellence

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AdDent, Inc
43 Miry Brook Rd, Danbury, CT 06810

Phone: (203) 778-0200
Fax: (203) 792-2275

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