Description

3D Molar Tooth Model Crown Preparation & Open Apex Endodontic Training

Key Features of 3D Molar Tooth Model

• Watertight STL: manifold mesh, no self-intersections; slicer-ready for SLA/DLP/FDM.

• Realistic anatomy: detailed occlusal fossae and grooves, buccal/lingual contours, two roots with clear furcation (as shown).

• Open Apex simulation: apical foramina modeled as open to practice apical barrier techniques and extrusion control.

• Continuous canal path: from access cavity to apex for irrigation, instrument pathfinding, and delivery of bioceramics.

• Prosthodontic training: ideal for occlusal/axial reduction, functional cusp bevels, margin design (Chamfer/Shoulder), taper and OCS checks.

• Scalable: print at 1:1 or upsize to 1.2–1.5× for classroom visibility.

• Education-only: not a medical device; not intended for intraoral use.

 

This printable molar reproduces chairside-relevant external morphology and an internal canal with an open apical end, letting you run two complementary training tracks on a single model:

1. Endodontics — Open Apex

   • Practice MTA/Biodentine apical plug placement (typical 3–5 mm barrier), working length control in patulous canals, and prevention of material extrusion.

   • Simulate irrigation/drying workflows and delivery with carriers or micro-cannulas.

   • Standardize access cavity design while preserving pericervical dentin.

2. Fixed Prosthodontics — Crown/Onlay Prep

   • Rehearse stepwise occlusal reduction, functional cusp bevel, finish-line selection (Chamfer/Heavy Chamfer/Shoulder with internal rounding), and taper evaluation.

   • Verify path of insertion and occlusal clearance with gauges or desktop scans.

Tip: Print in translucent resin for endo demos (canal and apical plug visibility), or gray/ivory for high-contrast evaluation of prep lines.

Learning Outcomes

• Case logic for open apex (apical barrier vs. apexification) and accurate apical plug thickness.

• Controlled placement/condensation of bioceramic materials at an open apex.

• Efficient, conservative access design with line-angle preservation.

• Competent margin design and taper (≈6–12° in training) for predictable restorations.

• Before/after documentation (occlusal, buccal, apical views) for self-assessment.

What You Get

• File type: STL (binary), watertight/manifold

• Scale: 1:1 (user-scalable in slicer)

• Geometry: two roots + furcation; continuous canal; open apex

• Compatibility: PreForm, Chitubox, Lychee, Cura/Prusa, etc.

Printing Guide (recommended settings)

SLA / DLP

• Layer height: 50 µm (25 µm for extra occlusal detail if available)

• Orientation: roots angled 30–45° downward from the build plane; supports under non-functional cusps and around the furcation

• Resin: gray/ivory for prep; translucent for endo visualization

• Post-process: wash & full cure per resin IFU; verify canal patency with a fine probe

FDM

• Nozzle: 0.25–0.40 mm | Layer: 0.12–0.20 mm

• Infill: 100% (or 60–80% if weight matters)

• Material: PLA/PLA-Tough; re-check canal outlets with a micro-drill if needed

Use Cases

• Workshops in VPT/Regendo/Open Apex and MTA apical plug techniques

• Bench-top practice for full crown / onlay preparation

• Classroom demos, filming, and pre-clinical skills assessment

---

Technical Specs

• Tooth type: mandibular molar with two roots (distinct furcation)

• Canal: continuous from chamber to apex; open apices

• Mesh integrity: manifold, non-self-intersecting, support-friendly

• Intended use: extra-oral educational model only

FAQs

Is the model sterilizable/autoclavable?
No—this is a printable training model for use outside the mouth.

Can I practice an apical plug with MTA?
Yes. The open apex and continuous canal are designed for apical barrier training and extrusion control.

Best material to visualize the canal?
Translucent SLA/DLP resin shows the canal and apical plug clearly; gray resin is best for evaluating prep lines.

Can I order a larger version?
Scale to 1.2–1.5× in your slicer for teaching; geometry is preserved.