intraoral scanning
Dental Procedures
estimated about CNY 300-1000
Disclaimer: This site is a medical service platform; some page content is AI-assisted. Health-related information does not constitute medical advice. If you have any questions, please consult a healthcare professional. See full disclaimer
Description
A digital imaging technique using a handheld device to capture detailed 3D surface images of teeth and oral structures for restorative dentistry, orthodontics, and prosthodontics without traditional impression materials.
Main Uses
Primary clinical applications include: fabrication of crowns, bridges, veneers, inlays/onlays, and orthodontic appliances (e.g., clear aligners); guided implant surgery planning via integration with CBCT; digital smile design and patient communication; archiving of baseline oral anatomy for longitudinal monitoring; production of surgical stents and occlusal splints; and tele-dentistry case referrals requiring accurate 3D data exchange.
Normal Range
Digital intraoral scanning (IOS) does not produce numerical 'values' or quantitative biomarkers; it generates high-resolution 3D surface topographic data of dental structures. There is no universal 'normal range' in terms of units (e.g., mm, μm, or scores). Instead, clinical acceptability is assessed qualitatively and quantitatively via scan accuracy metrics: typical trueness deviation < 20–50 μm (vs. reference master model), precision (repeatability) < 15–30 μm, and full-arch scan completeness ≥ 95% with minimal motion artifacts, occlusal contact fidelity, and gingival margin clarity.
Low Values - Possible Causes
Inadequate scan quality ('low-quality' output) commonly results from: 1) Patient movement or involuntary swallowing during acquisition; 2) Excessive saliva, blood, or moisture obscuring tooth surfaces; 3) Suboptimal scanner tip positioning or insufficient overlap between scan passes; 4) Presence of reflective surfaces (e.g., amalgam restorations, wet composite) causing specular glare or data dropout; 5) Poor patient cooperation (e.g., limited mouth opening, gag reflex, pediatric patients).
High Values - Possible Causes
The term 'high value' is not applicable to digital intraoral scanning as it is a non-quantitative imaging modality—no analyte concentration or scalar parameter is measured. However, 'excessively high artifact burden' may arise from: 1) Scanner calibration drift or outdated firmware; 2) Use of incompatible or unvalidated third-party scanning software; 3) Environmental factors such as strong ambient light interference (e.g., operatory overhead LEDs); 4) Hardware issues including lens contamination, worn scanner tip, or sensor degradation; 5) Operator over-scanning leading to redundant, misaligned point clouds and mesh distortion.
estimated about CNY 300-1000