Why Dental Labs Need a Desktop Scanner and the Difference Between 3.0 MP and 3.7 MP

1. Why Dental Labs Need a Desktop Scanner

In daily work, dental labs often face several common issues.

Unstable Model Accuracy

Plaster models can be affected during casting, transport, or storage. Margins and fine details may be damaged, which directly affects the final restoration fit.

A desktop scanner converts the physical model into digital data, reducing manual errors and improving consistency.

High cost of communication

Workflow that isn't connected

Not very efficient

2. What a desktop scanner may help with

1. After using a desktop scanner, labs can usually do better at:
2. Data acquisition consistency
3. Less remakes
4. Digital storage and simple access
5. Working together from afar
6. Stability of the overall workflow

1. These changes are most obvious in labs that are medium to big in size.

3. Practical Differences Between 3.0 MP and 3.7 MP

When purchasing a scanner, pixel resolution is often one of the key parameters people consider. According to actual test data, the difference between images produced by a 3.0-megapixel desktop scanner and a 3.7-megapixel model is relatively minor; the 3.7-megapixel version holds an advantage only in terms of scanning speed.

3.1 Scanning Time Comparison

Under the same conditions, the scanning time is as follows:

3.0 MP Scanner:

• Bite scan: ~2 s

• Single arch (upper/lower): ~17 s

• Unsectioned model: ~26 s

• Dies (1–4 units): ~23 s

• Dies (5–8 units): ~28 s

• Impression: ~39 s

3.7 MP Scanner:

• Bite scan: ~2 s

• Single arch (upper/lower): ~10.5 s

• Unsectioned model: ~15.5 s

• Dies (1–4 units): ~14 s

• Dies (5–8 units): ~16 s

• Impression: ~27 s

In most scenarios, the 3.7 MP scanner shows a shorter scanning time, especially for dies and impressions.

3.2 Efficiency in Daily Work

• 3.0 MP
  Provides stable performance for routine work.
  Suitable for standard production tasks, though total time may increase in batch processing.

• 3.7 MP
  Faster scanning in most cases.
  More suitable for labs with higher daily workload or tighter turnaround requirements.

3.3 Texture Output

Another noticeable difference is the texture type:

• 3.0 MP: Monochrome texture

  • Focus on geometry

  • Clean and lightweight data

  • Sufficient for most CAD design tasks

• 3.7 MP: Color texture

  • Includes surface color information

  • Easier to identify margins and details visually

  • Helpful for design and communication

3.4 Overall User Experience

In practical use:

• 3.7 MP offers better efficiency and more intuitive visualization

• 3.0 MP remains a reliable option for standard needs with controlled cost

4. How to Choose

Selection depends on the lab’s workload and application:

• For routine crown and bridge work
  → 3.0 MP is generally sufficient

• For higher efficiency or better visualization (color data)
  → 3.7 MP is more suitable

5. Summary

Both configurations can complete standard scanning tasks in dental labs. The main differences are:

• Scanning time

• Data visualization (monochrome vs. color)

• Efficiency in daily operation

The choice should be based on actual workload and usage habits, rather than a single parameter.