Black triangles
Open gingival embrasures (so-called black triangles) are closed with Black Triangle matrices – canine to canine, in both arches. Courses also teach combining this with covering root abrasions (Class V).
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IMMT is the official representative of Bioclear
Clear anatomic Bioclear matrices and the heated-composite injection technique allow direct closure of black triangles and diastemas and restoration of anterior and posterior teeth. IMMT helps clinics get to know the method, order supplies through authorized distribution and choose the right training.
Bioclear products are not sold in the IMMT online store – we help you order them through authorized distribution.


Bioclear was founded in 2007 in Tacoma (Washington, USA) by dentist Dr. David Clark, who worked for many years under high magnification (microscope) and founded the Academy of Microscope Enhanced Dentistry. The manufacturer describes the Bioclear Method as a combination of updated tooth preparation, injection molding of heated composite and patented clear, anatomically shaped matrices.
The principle is simple: a clear anatomic matrix is fixed to the tooth, heated flowable and paste composite is injected into it, and the restoration is cured through the matrix. The composite is shaped “around the tooth” rather than only in the cavity, which allows control of the contact and the emergence profile, while the Mylar surface leaves a smooth interproximal composite.
The matrices have the tooth contour and emergence profile, so composite can be injected interproximally without leaving overhangs at the margin. Once seated in the sulcus, the matrix stabilizes itself.
Heated composite is injected in a single flow through the clear matrix, producing a monolithic restoration without manual layering interfaces. The HeatSync warmer (approx. 68 °C) is used to heat the composite.
The method focuses on direct, additive treatment – often as an alternative to crowns or ceramic veneers, preserving more healthy tooth structure.
Color-coded matrices and gauges (Black Triangle Gauge, Evolve Matrix Height Indicator) help select the right curvature or height straight away and shorten selection time.
A two-tone disclosing solution reveals biofilm, and the Blaster device with aluminum trihydroxide powder removes it without damaging the enamel surface (according to the manufacturer).
Bioclear Learning Center courses are held in small groups, with hands-on work on soft-tissue models and instructor feedback; some courses use a microscope.
Open gingival embrasures (so-called black triangles) are closed with Black Triangle matrices – canine to canine, in both arches. Courses also teach combining this with covering root abrasions (Class V).
DC series (Diastema Closure) matrices have a larger emergence profile and are designed for closing larger gaps; A series matrices are used for smaller gaps.
From small to large carious lesions on anterior teeth (Class III), fractured incisors and incisal edge restoration. TSS and HD Anterior matrices are designed for this.
TSS kit indications include composite veneers, direct composite crowns, circumferential demineralization and mottled enamel; the 360° Veneer matrix is designed for a full-tooth composite shell.
Black Triangle and anterior matrices are used to restore the shape of peg-lateral teeth; courses also cover visual correction of rotated teeth with composite (“instant ortho”).
Evolve matrices, the TwinRing Universal separator and Diamond Wedge wedges are designed for tight, broad contacts; for Class I and II cavities – the Calla-Lily Fissurotomy preparation technique.
A dedicated SS White / Bioclear pediatric preparation kit and a two-day course for pediatric dentists – for restorations of primary and permanent teeth.
Simplified overview based on the manufacturer's descriptions; the exact protocol depends on the case and is taught in courses.
A two-tone disclosing solution stains fresh biofilm pink and older (over 24 h) biofilm and cracks purple.
The Blaster device with aluminum trihydroxide powder cleans biofilm from the surfaces to be restored.
TruContact 2.0 serrated saws and abrasive strips open the natural contact so that a Mylar matrix fits between the teeth; for posterior teeth – Calla-Lily preparation.
The matrix is selected with a gauge or height indicator, seated in the sulcus and, if needed, stabilized with a Diamond Wedge and TwinRing.
Flowable and paste composite heated in the HeatSync warmer is injected into the matrix and cured.
After the matrix is removed, the restoration is finished and polished with the two-step Rockstar Polish system.
These products are not sold in the IMMT online store – contact IMMT about a specific kit and ordering.

Color-coded matrices for black triangles: 2 sizes (small and large incisors) and 4 curvatures – blue (gaps up to 2.5 mm), green (up to 2 mm), yellow (up to 1.5 mm), pink (up to 1 mm). The kit includes a BT gauge, disclosing solution and TruContact strips; the matrices need no trimming.

Anterior matrices designed separately for each mesial and distal surface of the upper canine-to-canine teeth (FDI 13–23), plus universal matrices for lower incisors. Patented facial and lingual overlap design.

Anatomic anterior matrices: HD – 75 µm (stiffer), Original – 50 µm (more flexible). A series – for smaller gaps and Class III, DC series – for diastema closure. Also the 360° Veneer matrix.

Successor to Biofit HD: three emergence profiles (blue – molars, orange – flatter-profile molars, black – premolars), with the height printed on the matrix. The Evolve All-in-One kit includes TwinRing Universal, Adjustable Push-Pull and Diamond Wedge wedges.

Sectional separator with nitinol springs, suitable for molars, premolars and primary molars, and also over a rubber dam clamp. Flexible Diamond Wedge wedges – regular and long versions, several sizes.

Warmer designed for injection molding: heats composite to approx. 68 °C and maintains the temperature. Holds two composite guns, two syringes and up to six additional compules; the removable top is autoclavable.

Biofilm removal device with aluminum trihydroxide powder; connects to the dental unit via a KaVo Multiflex-type coupling and rotates 360°. Used together with the two-tone disclosing solution.

TruContact 2.0 – serrated saws and abrasive strips for contact preparation. Calla-Lily Fissurotomy kits (with SS White) – for minimally invasive Class I–II preparation; a pediatric kit is also available. Rockstar Polish – a two-step polishing system.
IMMT is the official representative of Bioclear. We do not sell Bioclear products in our online store – instead, we help your clinic choose the right solution and implement it.
Get a consultationWe discuss the cases you want to treat (black triangles, diastemas, Class III–IV, posterior teeth) and help you choose a starter kit.
We help you order Bioclear matrices, kits and equipment through authorized distribution and coordinate refills.
We show how the matrix systems, HeatSync and Blaster work, so you can evaluate the workflow before deciding.
We help you find the right Bioclear Learning Center course – an online introduction or a hands-on certification course – and keep you informed about training in the region.
After implementation, we answer practical questions about matrix selection, use of the instruments and refills.
The main Bioclear Learning Center is located in Tacoma (USA); courses are also held in other countries and online. Courses are run in small groups, with instructor demonstrations under magnification and hands-on work on models.

1 day, online, ~7 h
No prerequisites; a kit of supplies is shipped to the participant.
3 parts: theory and test, 1-day hands-on course, submission of your own cases
No prerequisites.
4 days, 36 CE
Five principles of the Bioclear Method, Class II, Calla-Lily, anterior restoration.
3 days, 27 CE
Requires completion of Core Anterior and Core Posterior.
3 days
Cracked teeth, root coverage, open posterior contacts; previous courses required.
2 days, 18 CE
For pediatric dentists and general practitioners who treat children.
Any dentist can use Bioclear products and procedures, but “Bioclear Certified Provider” status is granted only to those who complete a Learning Center course and receive instructor certification.
No. IMMT is the official representative of Bioclear, but does not sell Bioclear products in its online store. Contact us – we will help you choose a kit and order it through authorized distribution.
Yes. According to the manufacturer, any dentist can use Bioclear products and procedures. Still, we recommend at least the introductory course, as the method involves specific steps. “Certified Provider” status is granted only after completing a Learning Center course.
The Bioclear Method relies on heated flowable and paste composite injected into the matrix. The manufacturer does not specify a single mandatory brand – its training videos use composites from various manufacturers. We recommend discussing the specific choice during a consultation.
Thickness and stiffness: HD matrices are 75 µm thick (stiffer), Original – 50 µm (more flexible). Both systems include an A series (for smaller gaps) and a DC series (for diastemas).
The BT gauge is inserted into the black triangle, and its color indicates the required curvature. The matrices come in 2 sizes and 4 curvatures: blue closes gaps up to 2.5 mm, green – up to 2 mm, yellow – up to 1.5 mm, pink – up to 1 mm.
Injection molding is performed with heated composite. HeatSync heats it to approx. 68 °C and maintains this temperature; it holds composite guns, syringes and additional compules. The manufacturer considers it one of the key tools of the method.
The Blaster connects via a KaVo Multiflex-type coupling (4-hole, without fiber optics). Before ordering, we recommend checking your unit's compatibility and compressor pressure requirements with IMMT.
The Bioclear Learning Center offers a one-day online introduction and hands-on courses in the USA and other countries (e.g. the United Kingdom, Sweden, Italy, Spain). IMMT will help you choose the right course and keep you informed about training in the region.
Bioclear consultation
Tell us which cases you want to treat – we will help you choose a kit, place an order and find the right training.