Many internationally trained dentists learned operative and fixed prosthodontic techniques on natural extracted teeth or on typodonts made by local manufacturers. When they begin preparing for a U.S. Advanced Standing bench examination, they often meet two brand names for the first time: Kilgore and Columbia Dentoform.
Both companies make typodonts and replacement teeth used in dental education. Both appear in school instrument lists and practice recommendations. And both can feel surprisingly different under a bur if you are used to one and suddenly switch to the other.
This guide explains the practical differences candidates may notice between a Kilgore typodont and a Columbia typodont, and why the most important rule is simple: practice on the exact model and teeth your exam uses.
Why the Typodont Matters on a Bench Test
On a bench test, your preparation is judged on details measured in fractions of a millimeter. Depth, taper, margin placement, and adjacent-tooth protection all depend on how well you can read the tooth in front of you.
If the anatomy, hardness, or contacts on exam day are different from what you practiced on, you may need to adjust your technique under time pressure. That is a preventable source of error.
Areas Where Typodonts Can Differ
Exact characteristics vary by model and by tooth series, so the points below describe what candidates may encounter, not fixed rules for either brand.
Tooth anatomy
Crown height, cusp form, pulp-chamber simulation (in some teeth), and the shape of the cervical area can vary. These details affect your sense of how deep to cut and where the margin should sit. A preparation that feels correct on one model may be slightly deep or shallow on another.
Material and hardness
Plastic and resin teeth differ in how they cut. Some materials cut quickly and can be easy to over-reduce. Others feel harder and may produce more heat or rougher surfaces with worn burs. You need to build control on the same material you will see on exam day.
Mounting system
Typodonts attach teeth to the base in different ways, and frames attach to manikin heads or bench mounts in different ways. If your teeth shift, rotate, or loosen during practice, check the mounting rather than assuming your technique is wrong.
Replacement teeth
Replacement teeth are usually sold by tooth number and by series, and teeth from different series may not fit or behave the same way. Order the specific teeth your exam lists, and order enough for repeated practice.
Contacts
Contact tightness affects proximal preparations. Tight contacts make it easier to damage the adjacent tooth when breaking contact. Looser contacts can give a false sense of ease. Practice proximal boxes and crown margins on the same contact conditions you will meet on exam day.
Occlusion
Some typodonts are articulated with an opposing arch, which lets you check occlusal clearance. Others are used without an opposing arch. If your exam evaluates occlusal reduction against an opposing tooth, practice the same way.
Availability
Availability and shipping times can vary, especially for specific replacement teeth. Candidates outside the United States may wait longer for orders. Order early so that supply problems do not reduce your practice time.
A Practical Comparison Checklist
Instead of asking “which brand is better,” ask whether your practice setup matches your exam. Use this checklist:
| Question | Why it matters |
|---|---|
| Which manufacturer and model does the exam use? | Anatomy and material vary by model |
| Which specific tooth numbers are tested? | You need the right replacement teeth |
| Are teeth supplied by the school on exam day? | You may not use your own teeth |
| Is the typodont mounted in a manikin head? | Affects positioning and mirror work |
| Is there an opposing arch? | Affects how occlusal reduction is checked |
| Can you bring your own typodont? | Some exams provide everything |
Is One Brand Universally Required or Better?
No. Neither brand is universally required, and neither is universally superior. Different schools choose different equipment, and some may change suppliers or models over time. Some programs specify a brand and model in their exam instructions; others provide the typodont in their simulation lab.
What matters is familiarity. A candidate who has practiced many times on the correct model is usually better prepared than a candidate who has practiced on the “best” typodont but not the one used on exam day.
How to Confirm Your Exam’s Typodont
- Read every instruction document the program sends with your bench-test invitation.
- Look for the manufacturer, model, and tooth numbers.
- If the information is missing, email the admissions office and ask directly.
- Ask whether the teeth will be new, and whether you may bring your own mounting equipment.
- Keep the written reply for reference.
Requirements can change. Applicants should confirm current requirements directly with the individual dental program.
What If You Are Applying to Several Schools?
If your target programs use different typodonts, prioritize the exam that comes first, then spend dedicated practice time on the second model before its exam. Keep separate notes for each model, including how each material cuts and how tight each contact feels.
Common Mistakes When Switching Typodonts
- Keeping the same depth habits. Re-check depth with a probe or index during your first sessions on a new model.
- Using worn burs on a harder material. Dull burs on harder teeth can create heat, chatter, and rough walls.
- Ignoring contact differences. Re-practice breaking contact carefully until adjacent-tooth damage stops appearing.
- Practicing without the manikin head. If the exam uses one, a bench-mounted typodont alone will not prepare your positioning.
Key Takeaways
- Kilgore and Columbia typodonts can differ in anatomy, material, mounting, contacts, and replacement teeth.
- Neither brand is universally required or universally better.
- The most important factor is practicing on the exact model your exam uses.
- Confirm the details in writing with each school.
To build your practice plan around the right equipment, see our bench test kit checklist, read what to practice for the Advanced Standing bench test, and review ASTRA’s Bench Skills & Preparation guide.
Practicing in an Exam-Style Setting
If you’re preparing for an Advanced Standing bench examination and want to learn more about simulation-based practice and exam-style preparation, you can explore ASTRA Test Prep’s resources and preparation options in Pasadena.
