In restorative and surgical dentistry, the choice of bur can dramatically influence the accuracy, speed, and outcome of a procedure. Among the most trusted and widely used shapes is the Pear-shaped diamond bur, particularly the 237 series, which offers a full spectrum of sizes to suit everything from conservative cavity prep to extensive crown reduction.
Whether you're a general dentist, prosthodontist, or lab technician, the Diamond Bur 237 Pear Shape range—from 1.0 mm to 3.2 mm—delivers the control and cutting efficiency needed for modern clinical demands.
🔍 What Is a Pear-Shaped Diamond Bur?
The pear shape features a rounded, tapered profile that allows for:
- Smooth entry into tooth structure
- Controlled removal of enamel and dentin
- Ideal contouring of internal cavity walls
- Efficient access to occlusal and proximal surfaces
This shape is especially favored for:
- Crown preparation
- Cavity access
- Occlusal rest seat formation
- Endodontic access
- Depth guide creation
📏 Size Breakdown & Clinical Use
| Size (mm) | ISO Code | Typical Use Case |
|---|---|---|
| 1.0 mm | 806.314.233.524.010 | Conservative cavity prep, pediatric cases |
| 1.2 mm | 806.314.237.524.012 | Initial access, small restorations |
| 1.4 mm | 806.314.234.524.014 | Class I & V cavity shaping |
| 1.6 mm | 806.314.237.524.016 | Occlusal contouring, enamel reduction |
| 1.8 mm | 806.314.237.524.018 | Crown margin refinement, depth cut |
| 2.0 mm | 806.314.237.524.020 | Full crown prep, bulk enamel removal |
| 2.1 mm | 806.314.237.524.021 | Posterior crown prep, bridge abutment shaping |
| 3.2 mm | 806.314.237.524.032 | Extensive reduction, lab use, prosthetic work |
Each bur is available in various grit levels—typically medium (blue ring) or extra coarse (black ring)—to match the aggressiveness required for the procedure.
🛠️ Material & Build Quality
These burs are manufactured with:
- Natural diamond particles for superior cutting efficiency
- Hardened stainless steel shanks for durability and concentric rotation
- FG (Friction Grip) stems compatible with high-speed handpieces
- ISO color-coded rings for quick grit identification
They are rigorously tested for:
- Balance and concentricity
- Longevity across multiple sterilization cycles
- Precision cutting on enamel, dentin, porcelain, metal, and composite
🧠 Clinical Advantages
✅ Versatility: A full range of sizes allows clinicians to select the perfect bur for each stage of treatment.
✅ Efficiency: Diamond coating ensures fast, smooth cutting with minimal vibration.
✅ Control: Pear shape offers excellent tactile feedback and access to curved surfaces.
✅ Durability: Designed to withstand repeated use without loss of cutting power.
✅ Compatibility: Fits most high-speed handpieces and rotary systems.
The Diamond Bur 237 Pear Shape series is a must-have in any dental operatory. With sizes ranging from 1.0 mm to 3.2 mm, these burs offer unmatched flexibility, precision, and cutting power for a wide variety of procedures. Whether you're shaping a conservative restoration or prepping a full crown, this series delivers the performance and reliability that modern dentistry demands.