When buying a 3D facial scanner, it is easy to be carried away by words such as “pixels”, “algorithms” and “seconds”. What really affects daily use is five parameters that can be written into the contract, and the business path the device has to serve.
1. Start with five parameters
1. Accuracy has to be read item by item. 3D measurement accuracy, area accuracy, volume accuracy and repeatability are not the same metric. Taking the MVS-P6 as an example, 3D measurement accuracy is ±0.05mm, volume measurement accuracy is ±0.05ml and repeatability is 0.02mm; the 3D measurement accuracy of the MVS-C6 is ±0.2mm. Each item should be confirmed separately during procurement, not remembered as a single number.
2. Capture coverage and module count. A three-module device can complete 180° full-face capture; two-module and single-module devices correspond to different form factors and scenarios. The floor-standing MVS-P6, MVS-800, MVS-C6, MVS-C6HD and MVS-C4D suit a fixed treatment room; the desktop MVS-M6, MVS-M6HD and MVS-M2N suit a consultation or treatment room with limited space.
3. Scan time. Whole-process scanning is under 2 seconds for the MVS-P6, MVS-P6HD, MVS-800, MVS-C6 and MVS-C6HD; under 9 seconds for the MVS-M6, MVS-M6HD, MVS-M2N and MVS-N1; and under 25 seconds for the ZETTA. Single capture time and whole-process scan time should be asked about separately.
4. Data formats and interfaces. Standard output is OBJ, STL and PLY; the MVS-P6HD, MVS-C6HD, MVS-C4D and MVS-M6HD support DICOM input. Whether integration with HIS or an aesthetic clinic management system is needed should be confirmed per project; an order should not be placed just because “interfaces are supported” has been heard.
5. Installation and service. Working distance, power supply, light shielding and table load capacity all affect use. After-sales questions should cover the warranty period (3 years for the MVS-M6HD, MVS-C6HD and MVS-P6HD; 1 year for other models, subject to the contract), the response method and training arrangements.
| Parameter | Why it matters | What to ask |
|---|---|---|
| 3D measurement accuracy | Determines whether subtle changes can be recorded consistently | Is this 3D measurement accuracy or repeatability? At what test distance? |
| Area / volume accuracy | A reference for volume changes such as injection and filling | What is the test object, and how is segmentation done? |
| Capture coverage | Determines whether the mandibular border, preauricular area and temples are covered | How many modules? Is capture 180°? |
| Scan time | Affects patient cooperation and clinic pace | What are the single capture time and the whole-process scan time? |
| Export and interfaces | Determines whether data can enter the existing workflow | Which formats are supported? Can DICOM be imported? |
2. Then pick one of three paths
Path A: aesthetic consultation and preoperative design. The MVS-P6 targets high-accuracy quantitative scenarios, the MVS-800 covers both face and chest, and the MVS-C6 provides multi-module facial capture; for nasal design, look at the MVS-M6 and MVS-M2N, and for intraoperative comparison, the MVS-N1. The core of this path is not “scanning fast”, but whether the same patient can be compared before and after treatment with the same metric definitions.
Path B: oral and maxillofacial. The MVS-P6HD targets craniomaxillofacial design and CBCT import, the MVS-C6HD focuses on digital smile design and cephalometric analysis, the MVS-M6HD is a portable desktop form, and the MVS-C4D provides 4D dynamic capture. Dental scenarios also require confirming whether intraoral scanner and CBCT data can be registered.
Path C: skin analysis. The ZETTA combines 3D imaging and multispectral skin imaging in one desktop device, with whole-process scanning under 25 seconds, and works with the 3D skin analysis system to output images, metrics and reports.
| Path | Core requirement | Models to consider |
|---|---|---|
| Aesthetic consultation and preoperative design | High accuracy, reproducibility, report output | MVS-P6, MVS-800, MVS-C6, MVS-M6, MVS-M2N, MVS-N1 |
| Oral and maxillofacial | Bone-to-surface relationships, DICOM, dynamic expressions | MVS-P6HD, MVS-C6HD, MVS-M6HD, MVS-C4D |
| Skin analysis | Images, metrics, time-series comparison | ZETTA |
3. Software decides how long the device stays useful
Hardware turns the face into data; software turns data into usable content. The 3D digital plastic surgery system provides 60 facial metrics, data reports, aesthetic design, injection simulation and curvature maps, as well as color comparison, cross-section comparison and multi-model comparison; the 3D digital facial scanning system provides cephalometric analysis, dental model import, DICOM import, bone-soft tissue distance, orthognathic simulation and multi-model time-series comparison; the 3D skin analysis system provides skin feature marking, time-series comparison, local quantification and report output.
When selecting a model, ask the supplier to run a complete workflow on one of your own cases: capture, analysis, reporting and export. Whether that workflow runs end to end says more than a specification sheet.
4. Comparison of 11 models
| Model | Form factor | 3D measurement accuracy | Whole-process scan | Main scenarios |
|---|---|---|---|---|
| MVS-P6 | Floor-standing, 3 modules | ±0.05mm | <2s | High-accuracy quantification, pre- and post-treatment comparison |
| MVS-P6HD | Floor-standing, 3 modules, blue light | ±0.05mm | <2s | Oral and maxillofacial, craniomaxillofacial design |
| MVS-800 | Floor-standing, 2 modules | ±0.1mm | <2s | Face and chest |
| MVS-C6 | Floor-standing, 3 modules | ±0.2mm | <2s | Facial capture, maxillofacial aesthetics |
| MVS-C6HD | Floor-standing, 3 modules, blue light | ±0.1mm | <2s | Digital smile design, cephalometric analysis |
| MVS-C4D | Floor-standing, 3 modules, infrared | ±0.1mm | Depends on data volume | 4D dynamic, orthodontics and orthognathic surgery |
| MVS-M6 | Desktop, 1 module | ±0.2mm | <9s | Nasal design, consultation |
| MVS-M6HD | Desktop, 1 module, blue light | ±0.1mm | <9s | Oral and maxillofacial scanning (nasal design as a secondary use) |
| MVS-M2N | Desktop, 1 module | ±0.2mm | <9s | Nasal design, patient records |
| MVS-N1 | Floor-standing, mobile | ±0.2mm | <9s | Intraoperative comparison, postoperative records |
| ZETTA | Desktop all-in-one | ±0.2mm | <25s | Skin imaging and skin analysis |
5. Three points that are easy to miss
Accuracy is a conditional value. The same device gives different results at different distances, lighting and surface materials. Asking the supplier to state the test conditions is more useful than remembering a single number.
Do not apply one model's parameters to the whole range. ±0.05mm applies only to the MVS-P6 and MVS-P6HD; applying flagship parameters to the whole range will create a gap at acceptance.
Define the workflow before the device. First write down who completes the five steps of capture, analysis, reporting, export and archiving, then work back to the accuracy level and form factor you need.
Related pages: MVS-P6, MVS-800, MVS-C6, MVS-M6, MVS-M2N, MVS-N1, MVS-P6HD, MVS-C6HD, MVS-M6HD, MVS-C4D, ZETTA.
This article is compiled from CASZM product materials and public technical materials for selection reference; specific parameters, configurations and service terms are subject to the specification sheet of the corresponding model and the contract.