Free Online Dental CAD & Diagnostic Tools

11 Free Tools for Dental Labs and Clinics.

Zero software installs. Zero file uploads to cloud servers. Inspect CBCT studies, repair damaged STL and color PLY meshes, compare Vita dental shades, and compute implant specifications directly in your browser.

100% Client-Side In-BrowserZero Cloud Upload of ScansFree Forever · No Watermarks

CBCT & Radiography · In-BrowserClient-side · No Upload

Free Online DICOM CBCT Viewer

Inspect multi-slice volumetric CBCT studies directly in your browser. Axial slice navigation, window/level presets for bone and teeth, calibrated measurements with PixelSpacing, and zero server uploads.

How it operates in browserPure client-side WebAssembly parser handles uncompressed, RLE, and JPEG lossless DICOM files with same-origin worker threading.

Remake prevention roleConfirms nerve canal distance, bone volume, and apical pathology before irreversible restorative preparation or guide milling.

.dcm.zipDICOMDIRFolder

Launch DICOM Viewer

3D Intraoral Scans · CAD/CAM PreflightConservative Healer

Free Online STL Viewer & Mesh Repair

Orbit, section, measure, and sanitize 3D dental models. Detects open boundaries, self-intersecting triangles, and degenerate geometry without distorting critical margin lines.

How it operates in browserConservative topology healer that leaves open scan borders intact while removing interior degenerate facets and inverted normals.

Remake prevention rolePrevents CAD slicer crashes, 3D printer pauses, and crown seating failures caused by undetected mesh non-manifold errors.

.stlBinaryASCIIMax 75MB

Launch STL Repair

Vertex Color Preservation · TRIOS / Medit / iTeroRGB Color Preserved

Free Online PLY Color Scan Repair

Clean up intraoral color scans without losing realistic gingival and shade data. Preserves RGB vertex colors, fixes collapsed triangles, and exports sanitized PLY, STL, or OBJ.

How it operates in browserExtracts per-vertex color channels during half-edge topology reconstruction and maps scan textures onto preserved faces.

Remake prevention roleEliminates color loss that causes laboratory technicians to guess preparation finish lines and soft tissue contours.

.plyASCIIBinary LERGBA

Launch PLY Repair

Wavefront Geometry · Boundary InspectionFast OBJ Parsing

Free Online OBJ Dental Mesh Repair

Inspect and repair Wavefront OBJ dental models. Fixes bad vertices, unreferenced texture coordinates, and inverted face windings while preserving scan perimeter integrity.

How it operates in browserParses geometric vertex rows (v) and polygon faces (f), reconstructing indexed triangle buffers with strict non-manifold guards.

Remake prevention roleEnsures exported models from Carestream and open scanner platforms import into exocad, 3Shape, and Blender without facet rejections.

.objWavefront3D Mesh

Launch OBJ Repair

Vita Classical & 3D-Master ReferenceVita 3D & Classical

Dental Shade Guide & Chromatic System

Interactive shade comparison matching Vita Classical (A1–D4), Vita 3D-Master (1M1–5M3), and Bleach shades (0M1–0M3) with Delta E color distance and 5500K daylight compensation guidelines.

How it operates in browserCalculates hue, value, and chroma coordinates across dental shade tabs and correlates photographic flash reflection effects.

Remake prevention roleStops aesthetic remakes caused by mismatched shade communication or relying on memory instead of standardized chromatic coordinates.

A1–D41M1–5M30M1–0M3Delta E

Open Shade Guide

Clinic ↔ Lab notation · Permanent & primaryFree · In-browser

Tooth Numbering Converter: FDI · Universal · Palmer

Click any tooth or type a number to convert instantly between FDI (ISO 3950), Universal (ADA 1–32 / A–T), and Palmer notation for both arches.

How it operates in browserReference chart mapped to the same tooth identity across three published numbering systems, including adult 32 and primary 20 dentitions.

Remake prevention roleKeeps the clinic slip and the laboratory chart naming the same tooth before design or milling starts.

FDI ISO 3950Universal 1–32 / A–TPalmer

Open numbering converter

10 Manufacturer Systems · Prosthetic SpecsVerified Specs · Ncm

Dental Implant Torque & Settling Reference

Manufacturer-verified prosthetic screw torque values (Ncm) for Straumann, Nobel Biocare, Zimmer Biomet, BioHorizons, Neodent, MIS, Osstem, MegaGen, and Hiossen with Multi-Unit settling protocols.

How it operates in browserDetails friction loss during initial screw tightening (settling effect) and the mandatory 10-minute re-torque recommendation.

Remake prevention rolePrevents screw loosening, abutment micro-movement, prosthetic fracture, and peri-implant bone loss from incorrect torque application.

StraumannNobelZimmerNeodent10+ Brands

View Torque Specs

Conical · Hex · Platform Switching ReferenceConnection Matrix

Implant Platform & Connection Compatibility

Cross-system platform compatibility matrix. Verify prosthetic connection interchangeability, internal hex vs conical morse taper interfaces, and platform switching diameters.

How it operates in browserCross-references apex and platform engagement angles, screw thread pitches, and rotational tolerance boundaries across manufacturers.

Remake prevention rolePrevents micro-gap leakage and catastrophic fixture stripping caused by forcing non-identical clone abutments into proprietary geometries.

ConicalInternal HexMulti-UnitMorse

Check Compatibility

Golden Proportion · RED · Anterior AestheticsGolden Ratio & RED

Digital Smile Design Proportions Calculator

Calculate anatomical width-to-height ratios for maxillary anterior restorations. Compares Golden Proportion (1.618), Recurring Esthetic Dental (RED) proportions, and Chu's aesthetic gauges.

How it operates in browserCalculates central incisor width (ideal 75%–85% width/height ratio) and projects lateral incisor and canine visual widths in frontal view.

Remake prevention roleEliminates patient refusal at crown delivery by grounding anterior diagnostic wax-ups in mathematically proven aesthetic proportions.

11–13 / 21–2375–85% RatioChu Gauges

Calculate Proportions

Biomechanics · Zirconia / Disilicate / MetalBiomechanical Check

Dental Bridge Connector Area Calculator

Compute minimum connector cross-sectional dimensions (mm²) based on pontic span, anterior vs posterior position, and material flexural strength (3Y/4Y/5Y Zirconia, Lithium Disilicate, Cr-Co).

How it operates in browserApplies beam deflection and tensile stress equations to enforce minimum 9 mm² to 16 mm² cross-sections depending on material class.

Remake prevention rolePrevents catastrophic connector fracture in posterior multi-unit zirconia and ceramic bridges caused by undersized CAD connector profiles.

3Y / 4Y / 5Y ZrLiSi2Cr-CoArea (mm²)

Calculate Connector Area

Immediate vs Early vs Conventional LoadingConsensus-Based

Implant Loading Protocol Advisor

Clinical decision support evaluating primary stability, bone density classification (D1–D4), insertion torque (Ncm), ISQ resonance values, and patient risk factors for loading protocol selection.

How it operates in browserSynthesizes consensus criteria (ITI, EAO) correlating primary mechanical stability with biological secondary stability timelines.

Remake prevention rolePrevents early implant loss and fibro-osseous encapsulation caused by premature occlusal loading on compromised bone sites.

D1–D4 BoneInsertion NcmISQ Scale

Assess Loading Protocol

From Standalone Utility to Connected Case OS

A single file check doesn't solve the handoff.

Free tools fix an open mesh or inspect an axial CBCT slice. But remakes happen when clinical context is lost between clinic and laboratory. The TrazaLab Platform connects the entire case before fabrication.

STAGE 01

1. Standalone File Check

Quick inspection of scan geometry, mesh cleanup, or slice review in browser without registration.

Outcome: Clean 3D/DICOM file

STAGE 02

2. Case Context Attachment

TrazaLab attaches tooth-level odontogram findings, structured prescription, and shade photos to the file.

Outcome: Traceable clinical context

STAGE 03

3. Deterministic Gate Release

The 5-phase validation engine blocks omissions and conflicting specs before milling or printing begins.

Outcome: Prevented fabrication remake

Privacy & Architecture

Local Processing on Your Device.

All diagnostic and repair utilities in this catalog utilize WebAssembly, HTML5 Canvas, and dedicated Web Workers. Patient DICOM studies, intraoral scans, and photos never touch external cloud servers.

Zero storage on cloud servers
No registration or email gates required
Hardware-accelerated 60 FPS WebGL rendering
Complete privacy with client-side execution

Frequently Asked Questions

Questions about our free dental tools

Are these dental CAD and diagnostic tools genuinely free to use?

Yes. All tools in this directory run completely free in modern web browsers. There are no credit card requirements, no trial expiration countdowns, and no download watermarks on your exported dental files.

Do my dental scans or patient DICOM files get uploaded to a cloud server?

No. The 3D viewer, STL repair, PLY color healer, OBJ sanitizer, and DICOM CBCT workstation operate 100% locally inside your browser using client-side JavaScript, Web Workers, and WebAssembly. Your files and patient data never leave your computer during tool usage.

What is the difference between these free utilities and the TrazaLab Platform?

These free tools are standalone utilities designed to solve immediate technical challenges—such as fixing a corrupt STL file before printing or viewing a CBCT scan without desktop PACS software. The commercial TrazaLab Platform operates as a complete clinical case operating system: connecting the patient's dental chart (odontogram), digital prescription (receta digital), 3D scans, and radiographic evidence to an automated 5-phase validation engine that blocks missing data and preventable remakes before manufacturing starts.

Can I open large intraoral scan packages and high-resolution CBCT studies?

Yes. The tools are engineered with streaming binary decoders and multi-threaded Web Workers to comfortably handle intraoral scan files up to 75 MB and multi-slice DICOM series containing hundreds of high-resolution axial slices.

Are exported repaired meshes guaranteed to be watertight and CAD-ready?

TrazaLab provides both conservative cleanup (which preserves the natural open margin line of an intraoral scan without fabricating artificial boundaries) and reconstructive healing (which seals open holes). While our algorithms resolve non-manifold edges, inverted normals, and degenerate facets, clinical and laboratory professionals remain responsible for verifying restorative margins and fit before fabrication.