Synea Straight & Contra-angle Handpieces

Straight and contra-angle handpieces perfectly suited to your needs: Synea Vision, our premium Synea line, and Synea Fusion, the series with top quality and maximum economy. Our latest addition to the Synea family – the Synea Power Edition – is the essential complement for your practice that brings extra power to your handpiece range.

Restoration & Prosthetics

Restoration & Prosthetics

System Overview

* Multiflex® is a registered trade mark of Kaltenbach & Voigt GmbH, Germany
** also with other coupling versions available
*** Contra-angle handpieces of the Synea Vision Short Edition can be used on micromotors with an ISO coupling length of 23 mm or less

    • Synea Power Edition: For the hardest materials

      The Synea Power Edition is especially designed for heavy-duty applications, such as the removal of decayed materials, cavities, fillings, crowns, and bridges. These new high-speed contra-angle handpieces with a unique black push-button are built extra strong and durable.

      They are the optimal solution for advanced ceramic material like zirconia that is increasingly being used in restorative dentistry. Thus, this up-to-date addition to the Synea family is the perfect complement to your existing handpiece range.

      For heavy-duty applications

      • Zirconia-based dental restorations are becoming used more commonly. However, limited attention has been given to the difficulties experienced, concerning cutting, in removing the restorations when needed.(1)
      • Dental zirconia has posed a problem in removal […] due to its high flexural strength and hardness. Attempts to section dental zirconia often result in destroying multiple burs, loss of chair time, and frustration by the dentist and patient.(3)
      • […] cutting of Zir [Zirconia] took about 1.5- and 7-fold longer than cutting of LD [lithium disilicate glass– ceramic] and L [leucite glass–ceramic], respectively.(1)

        Studies show that

        […] high cutting force will decrease cutting efficiency on zirconia, rather than improve it.(1)

        […] a higher force for cutting of Zir […] increases the damage to the diamond burs, resulting in a decrease of the total cutting depth.(1)

        […] higher force may cause more damage to super coarse burs, which may decrease their cutting efficiency over time.(3)

        The removal of zirconia restorations is a demanding procedure. Conventional contra-angle handpieces are struggling to keep up with cutting performance. Applying even more load to improve removal rate wears out the bur much faster (1, 3) and may risk thermal damage to vital teeth (2).

        With the Synea Power Edition cutting efficiency is improved without having to apply extra heavy loads.

        (photo: Dr. Irina Taha)
        Bibliography
        • "A safe contra-angle handpiece for crown or bridge removal that also protects existing contra-angle handpieces!"
          Dr. Florian Krekel
          Munich (Germany)
        • "Simply ingenious, the four-wheel drive among contra-angle handpieces!"

          DDr. Simon Enzinger
          Salzburg (Austria)
        • "The Jeep® among contra-angle handpieces: robust, less susceptible to repair, reliable!"
          Dr. Romana Krapf
          Weißenhorn (Germany)
        • "I am thrilled with the clamping system, it offers a better workflow when changing burs!"
          Dr. Klaus Kohlpaintner
          Bürmoos (Austria)

          Extra robust chucking system for higher clamping force

          With an unbelievable 20% increase in clamping force, the newly designed FG chucking system is made for heavy-load applications.

          Multiple spray with high water flow for proper cooling

          With three enlarged nozzles smartly placed around the bur and a water flow of more than 50 ml/min, the Synea Power Edition provides an impressive cooling and cutting level.

          The integrated maintenance-free spray filter reliably prevents nozzle clogging and ensures a constant high-water quality.

          W&H Synea Power Edition contra-angle handpieces

          All good things come in threes

          With the special Synea 900-series, W&H has designed three extra powerful speed-increasing transmission instruments.

          The premium line of the Synea range – the Synea Vision – is complemented with the WK-900 LT, while the Synea Fusion portfolio is reinforced with the WG-900 LT (with light) and the WG-900 A (without light).

          Synea qualities at a glance

          • Ceramic ball bearings for smooth operation with less vibration
          • Monobloc design for better hygiene
          • Heat Blocker technology that keeps the push button cool, to protect you and your patients from burns
          • Compact glass rod for constant light quality and the optimal illumination of the treatment site (WK-900 LT / WG-900 LT)
          • Scratch-Blocker coating for long-term value retention (WK-900 LT)
          • 36-month warranty (WK-900 LT) and 24-month warranty for WG-900 LT/A)

          extra tough for the removal of high-strength materials

          extra precise with new head design for better bur guidance

          extra easy bur changes with unique and distinctive black push-button design

          Even rotary instruments designed for heavy-load applications show decreasing removal rate over time when cutting hard materials (1, 4). To keep up with cutting performance, rotary instruments need to be changed more frequently. Hence, you
          will appreciate the newly designed black push-button of the Synea Power Edition. It makes the bur change noticeably easier as forces are better distributed.

          extra solid chucking system with more than 20% more clamping force

          With an unbelievable 20% increase in clamping force, the newly designed FG chucking system is made for heavy-load applications.

          extra strong with more torque and better removal rate

          extra durable with at least 20% extended lifetime

          When cutting harder materials, conventional contra-angle handpieces are subject to considerable wear. Long downtimes and high maintenance costs are the result. In contrast, Synea Power Edition contra-angle handpieces are extra durable and feature an especially robust clamping system. They are less susceptible to mechanical failures and offer an incomparably longer service life of at least 20% compared to standard transmission instruments.

          extra robust for less service costs

          New head design and optimal ergonomics For better bur guidance the head is placed slightly higher. With the optimised shaft design, a secure grip and a perfect balance is ensured, especially in combination with the small electric motors from W&H.


          Synea Power Edition Contra-angle Handpieces

          WK-900 LT

          Contra-angle handpiece 1:4, 3-fold spray, head size Ø 10,7 mm, press-button chuck system for FG burs Ø 1,6 mm

          WK-900 LT
          REF 30418000

          Synea Vision Power Edition
          with light (compact glass rod)

          Indications

          › Cutting of crowns and bridges
          › Cavities and crown preparation
          › Removal of fillings


          WG-900 LT / A

          Contra-angle handpiece 1:4, 3-fold spray, head size Ø 10,7 mm, press-button chuck system for FG burs Ø 1,6 mm

          WG-900 LT
          REF 30459000

          Synea Fusion Power Edition
          with light (compact glass rod)

          WG-900 A
          REF 30460000

          no light

          Indications

          › Cutting of crowns and bridges
          › Cavities and crown preparation
          › Removal of fillings


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        • Synea Vision contra-angle handpiece

          Reliable, ergonomic and
          outstanding quality

          Synea Vision, the premium instrument line in the Synea series offers outstanding innovation and long service life guaranteeing excellent treatment results for restoration and prosthetics.

          Your advantages at a glance

          • Speeds, from 1:1 to 1:5, to meet your individual requirements, with 2 different head sizes for high speeds
          • Optimum service life and quiet operation due to ceramic ball bearings and innovative gearing technology (WK-99 / WK-93)
          • Easy to clean, comprehensive protection
            and long-term value retention thanks to new surface coating
          • Excellent grip and ergonomics with optimised shank profile and monobloc design
          • Compact glass rod for outstanding
            illumination of the treatment site
          • Durable instrument construction with
            stainless-steel external parts
          • Easy bur change
          • Thermo washer disinfectable and sterilizable
          • 36 months warranty

          Synea Vision Short Edition contra-angle handpieces

          Synea Vision Short Edition – the ultimate compact straight and contra-angle handpieces

          Choose from the classic range of high
          and slow-speeds.

          Your advantages at a glance

          • Ideal for users with smaller hands due to the reduction in weight and length
          • Perfect balance with the new, ultra-short W&H micromotor
          • Speeds, from 1:1 to 1:5, to meet your individual requirements, with 2 different head sizes for high speeds
          • Thermo washer disinfectable and sterilizable
          • 36 months warranty

          Individual

          Unexpected access options, incomparable view andmost power with perfect head size.

          • 2 high-speed head sizes available (WK-99 LT / WK-93 LT*)
          • Step-up and step-down ratios: 1:5/1:4.5, 1:1, 2:1, 8:1, handpiece

          * reduced head size 1:4.5 transmission ratio, maximum bur length 21 mm
          Scratch-resistant surface

          Scratch-resistant surface

          Easy to clean, comprehensive protection and retains high value with special scratch-resistant sufrace.

          Optimum cooling

          Optimum cooling

          Perfect cooling and cleaning of the treatment site with 5-hole spray (speed-increasing models).
          Excellent preparation results

          Excellent preparation results

          • Optimum service life and unexpected quietness during operation with ceramic ball bearings and innovative gearing technology (WK-93* / WK-99).
          • Unexpected access options, incomparable view and most power with perfect head size.
          • Quiet and vibration-free operation with optimum drive bearings.

          * reduced head size 1:4.5 transmission ratio, maximum bur length 21 mm
          Versatile range

          Versatile range

          The right straight or contra-angle
          handpiece for every application –
          in Synea quality!
          25% lighter, 15% shorter

          25% lighter, 15% shorter





          Synea Vision Short Edition with electric motor EM-12 L*

          The combination of Synea Vision Short Edition contra-angle
          handpieces with the EM-12 L electric motor with LED considerably
          reduces the amount of strength required.



          Synea Vision standard contra-angle handpieces with
          EM-E8 LED electric motor


          The perfect system for daily work in the practice.
          With instruments for all standard motors that are
          currently available on the market.
          HeatBlocker

          HeatBlocker – protects against burns

          The W&H HeatBlocker technology ensures a cool push button and minimises the risk of injury for your patients. The ceramic ball integrated in the head of the contra-angle handpiece reduces friction on the push button if it is pressed unintentionally during treatment. The heat development prevented in this way not only protects you, but also your patients from burns.

          Synea Vision Straight & Contra-angle Handpieces

          WK-99 LT

          Contra-angle handpiece 1:5, 5-hole spray,
          head size Ø 9.5 mm, push-button chuck
          for FG burs Ø 1.6 mm,
          compact glass rod

          WK-99 LT
          REF 30023000

          Synea Vision contra-angle handpiece

          WK-99 LT S*
          REF 30215000

          Synea Vision Short Edition contra-angle handpiece

          Indications

          > Preparation of crown abutments and cavities
          > Dental trepanning
          > Resectioning
          > Finishing
          > Removal of fillings and metals


          WK-93 LT

          Contra-angle handpiece 1:4.5, 5-hole spray,
          head size Ø 9.1 mm, push-button chuck
          for FG burs Ø 1.6 mm,
          compact glass rod

          WK-93 LT
          REF 30024000

          Synea Vision contra-angle handpiece

          WK-93 LT S*
          REF 30216000

          Synea Vision Short Edition contra-angle handpiece

          Indications

          > Preparation of crown abutments and cavities
          > Dental trepanning
          > Resectioning
          > Finishing
          > Removal of fillings and metals


          WK-56 LT

          Contra-angle handpiece 1:1, single spray,
          head size Ø 9.5 mm, push-button chuck
          for contra-angle bur with Ø 2.35 mm,
          compact glass rod

          WK-56 LT
          REF 30025000

          Synea Vision contra-angle handpiece

          WK-56 LT S*
          REF 30217000

          Synea Vision Short Edition contra-angle handpiece

          Indications

          > Preparation of cavities
          > Dental trepanning
          > Resectioning
          > Separating
          > Finishing of cavity margins and fillings


          WK-66 LT

          Contra-angle handpiece 2:1, single spray,
          head size Ø 9.5 mm, push-button chuck
          for contra-angle bur with Ø 2.35 mm,
          compact glass rod

          WK-66 LT
          REF 30026000

          Synea Vision contra-angle handpiece

          WK-66 LT S*
          REF 30218000

          Synea Vision Short Edition contra-angle handpiece

          Indications

          > Excavating
          > Preparations close to the pulp
          > Finishing


          WK-86 LT

          Contra-angle handpiece 8:1, single spray,
          head size Ø 9.5 mm, push-button chuck
          for contra-angle bur with Ø 2.35 mm,
          compact glass rod

          WK-86 LT
          REF 30027000

          Indications:

          > Excavating
          > Preparations close to the pulp
          > Root canal filling
          > Cementing

          HK-43 LT

          Straight handpiece 1:1, single spray,
          twist tension chuck system for handpiece
          and contra-angle bur Ø 2.35 mm,
          compact glass rod

          HK-43 LT
          REF 30028000

          Indications:

          > Preparing
          > Separating
          > Dental trepanning
          > Resections in anterior area
          > Basic technical procedures

          * Synea Vision Short contra-angle handpieces WK-99 LT S, WK-93 LT S, WK-56 LT S, WK-66 LT S can only be operated on dental motors with an ISO coupling measuring no longer than 23 mm.

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        • Synea Fusion contra-angle handpiece

          Synea Fusion – proven Synea quality at an outstanding price

          Uncompromising user comfort with proven Synea quality and optimum service life.

          Your advantages at a glance

          • Long life span and quiet running with ceramic ball bearings for model WG-99
          • Optimum access, best view due to small
            head-sizes
          • Safe cooling with 4 port spray for model WG-99
          • Monobloc design for optimum hygiene
            and ergonomics
          • Compact glass rod for constant light quality
          • Optimised design for secure grip and optimum hygiene
          • Secure grip and easy bur changes
          • Integrated maintenance-free spray filter
            for top water quality
          • Can be connected to all ISO motors
          • Thermo washer disinfectable and sterilizable
          • 24 months warranty

          Good illumination

          Good illumination

          Compact glass rod for good illumination of the treatment site.
          Optimal cooling from four sides

          Optimal cooling from four sides

          Continuous cooling with 4-hole spray.
          Optimised grip profile

          Optimised grip profile

          Optimised grip profile for secure grip and optimum hygiene.
          Special Instruments

          Reciprocating Contra-angle Handpieces WG-67 & WG-69

          Special reciprocating contra-angle handpieces for areas that are difficult to access.
          HeatBlocker

          HeatBlocker – protects against burns

          The W&H HeatBlocker technology ensures a cool push button and minimises the risk of injury for your patients. The ceramic ball integrated in the head of the contra-angle handpiece reduces friction on the push button if it is pressed unintentionally during treatment. The heat development prevented in this way not only protects you, but also your patients from burns.

          Synea Fusion Straight- & Contra-angle Handpieces

          WG-99 LT

          Contra-angle handpiece 1:5, 4-hole spray,
          head size Ø 10 mm, push-button chuck
          for FG-burs Ø 1.6 mm,
          compact glass rod

          WG-99 LT
          REF 30007000

          Indications:

          > Preparation of crown abutments and cavities
          > Dental trepanning
          > Resectioning
          > Finishing
          > Removal of fillings and metals

          WG-99 A
          REF 30008000

          Indications:

          > Preparation of crown abutments and cavities
          > Dental trepanning
          > Resectioning
          > Finishing
          > Removal of fillings and metals


          WG-66 LT

          Contra-angle handpiece 2:1, single spray,
          head size Ø 9.5 mm, push-button chuck
          for contra-angle bur with Ø 2.35 mm,
          compact glass rod

          WG-66 LT
          REF 30011000

          Indications:

          > Excavating
          > Preparations close to the pulp
          > Finishing

          WG-66 A
          REF 30012000

          Indications:

          > Excavating
          > Preparations close to the pulp
          > Finishing


          WG-56 LT

          Contra-angle handpiece 1:1, single spray,
          head size Ø 9.5 mm, push-button chuck
          for contra-angle bur with Ø 2.35 mm,
          compact glass rod

          WG-56 LT
          REF 30009000

          Indications:

          > Preparation of cavities
          > Dental trepanning
          > Resectioning
          > Separating
          > Finishing of cavity margins and fillings

          WG-56 A
          REF 30010000

          Indications:

          > Preparation of cavities
          > Dental trepanning
          > Resectioning
          > Separating
          > Finishing of cavity margins and fillings


          HG-43 A

          Straight handpiece 1:1, single spray,
          twist tension chuck system for handpiece
          and contra-angle bur with Ø 2.35 mm

          HG-43 A
          REF 30013000

          Indications:

          > Preparing
          > Separating
          > Dental trepanning
          > Resections in anterior area
          > Basic technical procedures


          Reciprocating contra-angle handpiece

          WG-67 LT

          Profin® contra-angle handpiece 2:1
          single spray, stroke 1.1 mm
          for Dentatus tips

          WG-67 LT
          REF 30084000

          Indications:

          > Removal of excess materials
          > Pre polishing
          > Fine polishing
          > Buffing in the interdental and subgingival areas

          WG-67 A
          REF 30085000

          Indications:

          > Removal of excess materials
          > Pre polishing
          > Fine polishing
          > Buffing in the interdental and subgingival areas

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        • Synea Vision

          Types: WK-900 LT
          (Power Edition)
          WK-93 LT /
          WK-93 LT S /
          WK-99 LT /
          WK-99 LT S
          WK-66 LT /
          WK-66 LT S /
          WK-86 LT
          WK-56 LT /
          WK-56 LT S
          HK-43 LT
          Light:
          (compact glass rod)
          yes
          Head size: Ø 10.7 mm Ø 9.1 / Ø 9.5 mm Ø 9.5 mm Ø 9.5 mm
          Head height: 22.9 mm
          (with bur 19 mm)
          21.2 mm / 21.6 mm
          (with bur 19 mm)
          20 mm
          (with bur 19 mm)
          20 mm
          (with bur 19 mm)
          Transmission/reduction: 1:4 1:4.5 / 1:5 2:1 / 8:1 1:1 1:1
          Max. motor speed: 40,000 rpm 40,000 rpm 40,000 rpm 40,000 rpm 40,000 rpm
          Max. operating part diameter:

          Max. length:
          2.5 mm

          25 mm
          2 / 2.5 mm

          21 / 25 mm
          34 mm 34 mm 34 mm
          Coupling: ISO 3964 ISO 3964 ISO 3964 ISO 3964 ISO 3964
          Spray: 3-fold
          (> 50 ml/min)
          5-fold
          (> 50ml/min)
          1-fold
          (> 50ml/min)
          1-fold
          (> 50ml/min)
          1-fold
          (> 50ml/min)
          Scratch-Blocker: yes
          Heat-Blocker: yes

          Synea Fusion

          Types: WG-900 LT/
          WG-900 A
          (Power Edition)
          WG-99 LT /
          WG-99 A
          WG-66 LT /
          WG-66 A
          WG-56 LT /
          WG-56 A
          HG-43 A
          Light:
          (compact glass rod)
          LT: yes
          A: no
          LT: yes
          A: no
          LT: yes
          A: no
          LT: yes
          A: no

          A: no
          Head size: Ø 10.7 mm Ø  9.5 mm Ø 9.5 mm Ø 9.5 mm
          Head height: 22.9 mm
          (with bur 19 mm)
          21.6 mm
          (with bur 19 mm)
          20 mm
          (with bur 19 mm)
          20 mm
          (with bur 19 mm)
          Transmission/reduction: 1:4 1:5 2:1 1:1 1:1
          Max. motor speed: 40,000 rpm 40,000 rpm 40,000 rpm 40,000 rpm 40,000 rpm
          Max. operating part diameter:
          Max. length:
          2.5 mm

          25 mm
          2.5 mm

          25 mm
          34 mm 34 mm 34 mm
          Coupling: ISO 3964 ISO 3964 ISO 3964 ISO 3964 ISO 3964
          Spray: 3-fold
          (> 50 ml/min)
          4-fold
          (> 50ml/min)
          1-fold
          (> 50ml/min)
          1-fold
          (> 50ml/min)
          1-fold
          (> 50ml/min)
          Scratch-Blocker: no
          Heat-Blocker: yes

          Reciprocating Contra-angle Handpiece

          Types: WG-67 LT /
          WG-67 A
          Light:
          (compact glass rod)
          LT: yes
          A: no
          Transmission/reduction: 2:1
          Max. motor speed: 20,000 rpm
          Operating part (mm): stroke 1.1 mm for für Dentatus tips
          Max. overall length (mm): determined by the files/tips available
          Coupling:

          ISO 3964

          Spray: 1-fold
          (> 50ml/min)