D.805.014.FG

Frank Dental D.805 Diamond Inverted Cone Cavity Preparation Bur – Precision Operative Dentistry for Conservative Restorations

The Frank Dental D.805 Diamond Inverted Cone Cavity Preparation Bur is a precision-engineered diamond dental bur specifically designed for operative dentistry, cavity preparation, retention form creation and conservative restorative procedures.

Manufactured in Germany using premium natural diamond technology, the Frank Dental D.805 inverted cone bur delivers exceptional cutting precision, controlled tooth preparation and efficient cavity refinement for modern restorative dentistry.

The inverted cone bur remains one of the most important instruments in operative dentistry because of its ability to create flat pulpal floors, mechanical retention, undercuts and well-defined internal cavity walls while preserving healthy tooth structure.

 

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What Is the Frank Dental D.805 Inverted Cone Bur?

The Frank Dental D.805 is a diamond-coated inverted cone dental bur featuring:

• A wider cutting tip
• Narrower upper neck
• Flat-end cutting surface
• Angled side walls
• Precision diamond coating

The unique inverted cone design allows clinicians to create controlled cavity geometry with excellent tactile feedback and preparation accuracy.

Unlike straight fissure burs or round burs, the inverted cone shape is specifically designed to:

• Create retentive undercuts
• Form flat cavity floors
• Produce mechanical retention
• Refine internal cavity anatomy
• Remove unsupported enamel
• Improve restoration stability

The D.805 diamond bur is widely used in restorative dentistry, operative dentistry and minimally invasive cavity preparation techniques.

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Why Is an Inverted Cone Bur Important in Operative Dentistry?

In restorative dentistry, cavity design plays a major role in the long-term success of restorations.

The Frank Dental D.805 inverted cone cavity preparation bur helps clinicians achieve ideal cavity geometry while preserving as much healthy tooth structure as possible.

The bur is particularly valuable because it allows dentists to create:

Flat Pulpal Floors

A flat pulpal floor improves:

• Restoration support
• Occlusal force distribution
• Restoration stability
• Resistance form
• Amalgam retention

The flat-end design of the D.805 enables smooth and controlled dentine reduction during cavity preparation.

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Mechanical Retention

Traditional amalgam restorations rely heavily on mechanical retention.

The wider cutting diameter at the tip of the inverted cone allows the bur to create subtle undercuts that help retain restorations securely within the cavity preparation.

This makes the D.805 especially useful for:

• Amalgam cavity preparations
• Retentive cavity designs
• Non-bonded restorations
• Core build-up retention
• Conservative undercut formation

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Conservative Tooth Preparation

Modern dentistry increasingly focuses on minimally invasive restorative dentistry.

The Frank Dental D.805 helps clinicians preserve healthy enamel and dentine by allowing:

• Precise caries removal
• Controlled cavity refinement
• Conservative preparation design
• Reduced unnecessary tooth reduction
• Improved structural preservation

This approach supports better long-term tooth prognosis and restorative longevity.

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How to Use the Frank Dental D.805 Diamond Inverted Cone Bur

Step 1 – Initial Caries Access

In many restorative procedures, clinicians initially gain access to the carious lesion using:

• A round diamond bur
• A round tungsten carbide bur
• A pear-shaped cavity preparation bur
• A straight fissure bur

Once access is achieved, the D.805 inverted cone bur is used to refine and shape the preparation.

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Step 2 – Refining the Cavity Preparation

The Frank Dental D.805 is then used to:

• Flatten the pulpal floor
• Refine internal cavity walls
• Remove unsupported enamel
• Create retention form
• Improve cavity geometry

The inverted cone shape provides excellent visibility and tactile control during this stage of treatment.

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Step 3 – Creating Mechanical Undercuts

The wider cutting tip enables the dentist to create conservative retentive undercuts within the dentine.

These undercuts improve restoration stability, particularly in amalgam restorations where bonding agents are not relied upon as heavily.

The bur allows clinicians to create retention without excessively weakening the tooth structure.

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Step 4 – Final Internal Refinement

The D.805 can also be used to refine:

• Internal line angles
• Gingival floors
• Axial walls
• Occlusal cavity floors
• Proximal box areas

The precision diamond coating allows smooth cutting while maintaining excellent control throughout the preparation.

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Advantages of the Frank Dental D.805 Diamond Bur

Precision Cutting Performance

The high-quality natural diamond coating provides smooth, controlled and efficient cutting of:

• Enamel
• Dentine
• Composite restorations
• Existing restorative materials

This improves cutting efficiency while reducing excessive pressure during treatment.

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Reduced Vibration and Improved Control

One of the major advantages of premium German-engineered diamond burs is improved concentricity.

The Frank Dental D.805 offers:

• Reduced vibration
• Smooth handpiece operation
• Enhanced tactile sensitivity
• Greater preparation accuracy
• Improved clinician comfort

This helps improve both clinical precision and patient comfort.

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Excellent Visibility During Cavity Preparation

The compact inverted cone design provides improved visibility inside the preparation.

This is particularly important during:

• Deep cavity refinement
• Conservative caries excavation
• Class I cavity preparations
• Class II box preparations
• Minimally invasive restorative procedures

Better visibility allows dentists to work more conservatively and predictably.

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Efficient Removal of Unsupported Enamel

Unsupported enamel can compromise restoration longevity and increase the risk of marginal fracture.

The Frank Dental D.805 bur allows clinicians to efficiently remove weak enamel margins while maintaining healthy tooth structure.

This helps improve:

• Marginal integrity
• Restoration adaptation
• Restoration longevity
• Occlusal stability

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Clinical Applications of the Frank Dental D.805

The Frank Dental D.805 Diamond Inverted Cone Bur is commonly used for:

Class I Cavity Preparations

Ideal for refining occlusal cavity preparations and creating flat pulpal floors.

Class II Cavity Preparations

Useful for proximal box refinement, gingival floor shaping and retention form creation.

Amalgam Preparations

Excellent for mechanical retention and undercut formation in traditional amalgam cavity designs.

Composite Restorations

Can be used for conservative cavity refinement and internal wall shaping.

Replacement of Defective Restorations

Efficient for removing weakened restorative material and refining cavity geometry.

Minimally Invasive Dentistry

Supports modern conservative restorative techniques by preserving healthy tooth structure.

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Why Dentists Choose Frank Dental Diamond Burs

Frank Dental is recognised worldwide for manufacturing high-quality German dental burs with exceptional engineering precision and clinical reliability.

Frank Dental burs are trusted by clinicians because they offer:

• Precision manufacturing
• High diamond concentration
• Consistent cutting performance
• Excellent concentricity
• Reduced handpiece vibration
• Long-lasting sharpness
• Superior tactile control

The Frank Dental D.805 Diamond Inverted Cone Bur continues this reputation by providing clinicians with predictable, precise and efficient cavity preparation performance.