BIOMIMETIC RESTORATIVE DENTISTRY

“Biomimetic dentistry is a way to restore a tooth without full coverage retention form and resistance form, and it preserves 50 % or more of tooth structure that is destroyed by traditional mechanically retained restorations.”

- David Alleman

 

BIOMIMETICS DEFINITION

“The study of biologically produced structures, substances and materials, their functions and the biological mechanisms - for the purpose of synthesizing artificial products which mimic nature.”

NOTHING BEATS NATURE’S OWN DESIGN

 
 

FALL IN LOVE WITH NATURE

To successfully replicate teeth, we need to learn how teeth are designed.

Nothing in a natural tooth is there by chance.

Nothing in our restaurations should be either.

APPLIED SCIENCE

A natural tooth is a perfectly balanced system designed to last a lifetime.

By mimicking the natural tooth`s mechanical properties and functions, we can create restorations that restore balance.

Biomimetic dentistry makes this possible through sophisticated, evidence-based adhesive protocols, that eliminates the need of mechanical retention and resistance form. 

“Do the best you can until you know better. Then when you know better, do better”
— Maya Angelou
 
 

KEEPING UP WITH SCIENCE

The dental litterature is vast and can be hard to comprehend.

However, our patients deserve the best care we can provide.

Modern dentistry enables tremendous success if the science is applied correctly.

The biomimetic principles have emerged from fundamental, as well as cutting-edge pieces of published science and are well documented.

 

A SYSTEMATIC APPROACH

 

Arctic Biomimetics follows a strict approach to practicing and teaching Biomimetic Restorative Dentistry (BRD). The comprehensive Biomimetic training we as instructors have received ensure a strong scientific evidence basis for our knowledge. We aim to provide a simplified way of teaching Biomimetic Dentistry consepts in order for you to gain a deeper understanding of how to succsessfully treat caries and cracks into dentin, whilst ensuring biomimetic bonds.

 
 
 

A PARADIGM SHIFT

There’s a widespread misconception that dentin bonding is weak, unpredictable and inferior to enamel bonding.

 

The truth is that with evidence-based techniques and materials, your dentin bonding can reach TWICE THE STRENGHT of enamel bonding.

ADHESIVE BONDING PROTOCOLS HAVE BEEN MADE EASIER WITH UNIVERSAL ADHESIVES.

EASIER IS NOT BETTER

 

HOW TO MAKE STRONGER BONDS

Bonding to dentin and bonding to enamel are completely different, and should therefore be treatet as two separate entities.

Bonding to ENAMEL requires 20 seconds

Bonding to DENTIN requires minimum 5 minutes

  • To simulate the bond strength of enamel, we have to know it’s inherent strength. Enamel is connected to itself with a tensile strength of 30 MPa, IE it takes 30 MPa to pull enamel apart from itself.

  • Dentin contains less hydroxyapatite and more collagen FIBERS than enamel, which makes it more flexible and tough.

    Dentin is connected to itself with a tensile strength 50-70 MPa, IE it takes 50-70 MPa to pull dentin apart from itself.

  • The dentin-enamel junction or dentin-enamel complex is often overlooked. However, it contains the very ESSENCE of biomimetic restorative dentistry.

    Enamel is BIOLOGICALLY BONDED to dentin with a bond strength of 51 MPa.

    For this reason, a bond is truly BIOMIMETIC when it reaches this level.

 

BIOMIMETIC PRINCIPLES

 

Enamel consists of 96% hydroxyapatite (HAP) and 4% organic material. It’s function is to transfer occlusal loads to the dentin and protect the tooth from bacterial infection. The composition of enamel, with pure minerals organised in PRISMS makes enamel a dry and hard material that is easy to bond to. Therefore, most practitioners have great success with bonded restorations in the anterior region, where there is typically more enamel than dentin. In the posterior region, we cannot rely on enamel bonding alone as the dentin substrate is much larger. Great care must be taken to ensure the bond to both dentin and enamel is maximized to acheive predictable long-term success.

Dentin consists of 70% minerals (HAP), 20% organic matrix (collagen FIBERS) and 10% water (measured in weight). The collagen reinforcement makes dentin very fracture tough, and enables it to absorb the occlusal loads put on the enamel through the dentin-enamel complex (DEC). The collagen network functions much like rebar in a concrete structure. It also makes it more diffiucult to establish a strong bond to dentin, as it is more moist and has less mineral content. However, if the dentin bond is allowed to develop in a stress-free environment it can reach twice the bond strength of enamel.

  • IMMEDIATE DENTIN SEALING (IDS)

    Immediate Dentin Sealing means sealing the dentin with a bonding system at the preparation appointment. With IDS we can achieve a 400% increase in bond strength to indirect restorations, as opposed the traditional delayed dentin sealing.

  • Resin Coating (RC)

    Resin Coating is covering your bonding layer with a thin layer of flowable. This ensures full polymerisation of your adhesive, increasing the bond strength.
    It also creates a fail safe - where the restoration to break, it will always fail above the resin coating, leaving the dentin still sealed.

  • DECOUPLING WITH TIME (DWT)

    Bonding is a chemichal prosess, and takes TIME.
    One of the biggest reasons for early onset bonding failures, is not giving the hybrid layer sufficient time to mature before we start stressing it with additional composite layers.

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