Wisdom teeth removal glossary of clinical terms
15 oral surgery, impaction, imaging and sedation terms explained in plain English.
Free to send, no obligation. One registered dentist rings you, not five.
- 15terms defined A to Z
- €250–€420surgical, per tooth
- €50–€83panoramic OPG x-ray
- 20%Med 2 tax relief
Key wisdom teeth removal terms explained
3D Cone-Beam CT (CBCT) Nerve Scan
A low-dose 3D X-ray (€120 to €220) taken when a flat panoramic OPG shows lower wisdom tooth roots overlapping the inferior alveolar nerve canal, mapping the exact millimetre relationship in cross-section.
Alveolar Osteitis (Dry Socket)
A dull throbbing ache starting 3 to 5 days after a lower molar extraction when the blood clot dissolves early; treated quickly in the clinic with a soothing antiseptic dressing.
Buccal Mucoperiosteal Flap
Gently lifting back a small gum fold beside a buried wisdom tooth so the oral surgeon can see the crown and bone clearly and close the site neatly with dissolving stitches afterwards.
Conscious Intravenous (IV) Sedation
Midazolam twilight sedation (€250 to €450 per visit) given via a small cannula in the back of the hand or arm so you drift through surgery relaxed with little or no memory of the procedure.
Coronectomy (Intentional Root Retention)
A nerve-protecting surgical procedure where only the crown of a deeply impacted lower wisdom tooth is removed and the healthy root tips remain untouched inside the jawbone away from the nerve.
Distoangular Impaction
A lower wisdom tooth tilted backwards toward the ascending bone of the jaw ramus, which usually requires surgical bone easing and tooth division to lift out.
Form Med 2 (20% Revenue Tax Relief)
The Irish Revenue certificate issued for non-routine surgical wisdom tooth removal, allowing PAYE and self-assessed taxpayers to claim 20% of their uninsured surgical fee back via Revenue myAccount.
Horizontal Impaction
A wisdom tooth lying sideways at 90 degrees inside the jawbone pressing against the back root of the neighbouring second molar.
Inferior Alveolar Nerve (IAN)
The sensory nerve travelling inside a canal through the lower jawbone beneath the wisdom teeth that supplies feeling to the lower lip, chin and lower teeth on that side.
Lingual Nerve
The sensory nerve running in the soft tissue on the tongue side of the lower wisdom tooth socket that supplies feeling and taste to the front two-thirds of the tongue.
Maxillary Sinus Approximation
When the roots of an upper wisdom tooth sit close to the floor of the air-filled maxillary sinus cavity in the cheekbone, checked on the pre-operative OPG X-ray.
Mesioangular Impaction
The most common angle of impaction, where the wisdom tooth tilts forward toward the second molar in front and traps food and plaque under the gum flap.
Orthopantomogram (OPG Panoramic X-Ray)
A wide full-jaw X-ray (€60 to €100) showing all four wisdom teeth, root curvature, bone depth, the upper sinus floor and the lower nerve canal on a single image.
Pericoronitis & Operculum
Painful infection and swelling of the gum flap (operculum) partially covering a half-erupted lower wisdom tooth, often causing a bad taste and stiffness opening the mouth.
Surgical Sectioning (Odontectomy)
Dividing an impacted wisdom tooth into two or three smaller fragments with a fine surgical bur so each piece lifts out through a small opening with minimal pressure on surrounding bone.
Check what your removal involves
Four quick taps. You see the likely type of removal, the likely cost, the tax relief and your recovery time. Your number is only asked for at the end, if you want an assessment.
Say one lower wisdom tooth is stuck under the gum: that's usually a surgical removal, typically €250 to €420 at Irish practices, plus €50 to €83 for the x-ray, with 20% tax relief back.
How this is worked out
The likely type of removal comes from what you tell us: a tooth that's stuck under the gum, or partly through in the lower jaw, usually needs a small cut in the gum; one that's through and easy to reach usually comes out whole. The prices are the range Irish dental practices publish for a wisdom tooth, per tooth, plus a panoramic x-ray and, if you pick it, IV sedation. Tax relief is 20% of the removal when it's a surgical extraction of an impacted wisdom tooth. The recovery times are the HSE's. It's a guide to plan with, never a diagnosis or a quote: the dentist decides after an examination and an x-ray.
Questions people ask
Why do surgical impacted wisdom teeth qualify for 20% Med 2 tax relief while simple extractions do not?
Revenue's Health Expenses manual (Part 15-01-12) excludes routine simple dental extractions from tax relief, but specifically lists the surgical extraction of impacted wisdom teeth as qualifying non-routine oral surgery. Your clinic signs Form Med 2 once treatment is paid so you can claim 20% back through Revenue myAccount.
Is conscious IV sedation charged per tooth or once per visit?
Conscious IV sedation (€250 to €450) is billed per appointment rather than per tooth. Having two, three or all four wisdom teeth removed in a single sedated session avoids paying a second sedation fee or taking a second recovery week off work.
Does Vhi, Laya or Irish Life Health cover impacted wisdom teeth removal?
Most Irish private health insurance hospital plans cover the surgical removal of impacted wisdom teeth (particularly lower horizontal, mesioangular or distoangular impactions) when performed by a participating oral surgeon in an approved day-case hospital or registered surgical clinic, subject to prior approval and your policy excess.
Every guide, calculator and county page
Jump straight to any specification guide, our interactive calculator, the technical glossary or your county page.
Price & Specification Guides
Calculator, FAQ & Glossary

Check what your removal involves
Four taps to the likely type, cost and recovery, then one Dental Council registered dentist or oral surgeon who covers your county rings you.
