Description
🦷 Overview of 4-Hole Dental Handpieces
4-hole configuration refers to the standard air and water connection ports used in many dental units. These handpieces are compatible with most dental chairs and units worldwide.
🔧 Key Features
| Feature | Description |
|---|---|
| Type | High-speed or low-speed (your image shows a low-speed contra-angle type) |
| Connection | 4-hole standard connector for air and water supply |
| Gear Ratio | Marked “4:1” — indicates speed reduction for precision tasks |
| Material | Stainless steel or aluminum alloy for durability and sterilization |
| Head Type | Detachable contra-angle head with multiple holes and green ring for grip |
| Noise Level | ≤70 dB — designed for quiet operation |
| Rotation Speed | Typically 20,000–40,000 rpm for low-speed; up to 420,000 rpm for high-speed |
| Bur Compatibility | Ø2.35mm for low-speed; Ø1.6mm for high-speed |
| Sterilization | Autoclavable at 135°C |
✅ Benefits
- Precision Control: Ideal for polishing, finishing, and endodontic procedures.
- Ergonomic Design: Lightweight and comfortable for prolonged use.
- Efficient Cooling: Balanced air and water flow prevent overheating.
- Quiet Operation: Enhances patient comfort during procedures.
🛠️ Usage & Maintenance
- Connect securely to the dental unit via the 4-hole interface.
- Use appropriate burs based on procedure type.
- Clean and sterilize after each use.
- Inspect for wear or damage regularly.
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