GENERIC
In stock (66 units)Regular price LE 199.00 EGPUnit price /Unavailable-
Woodpecker
Woodpecker Tip Post Removal (G8)
Low stock (10 units)Regular price LE 650.00 EGPUnit price /Unavailable
How to Choose the Right Unimetric Post Drill for Post Space Preparation
- System Matching — Unimetric post drills are calibrated to the exact taper and diameter of the Unimetric passive post system. Using a non-matched drill produces a post space that is either too narrow (post cannot seat) or too wide (excess cement film, reduced retention). Always select the drill number corresponding to the Unimetric post size you intend to place.
- Colour Coding — Unimetric drills use the same ISO colour-coding as their corresponding posts: pink (size 1/1.0 mm), grey (size 2/1.2 mm), purple (size 3/1.4 mm), white (size 4/1.6 mm), yellow (size 5/1.8 mm). This colour system prevents size mismatches intraoperatively when multiple sizes are available on the instrument tray.
- Rotational Speed — Use at low speed (800–1500 rpm) with irrigation. Excessive speed generates frictional heat; inadequate coolant flow desiccates post space walls and may create dentinal microcracks. A latch-type contra-angle handpiece provides the controlled torque required for systematic post space preparation.
- Depth of Preparation — Place a rubber stopper on the drill shank at the planned post space depth before insertion. Post space depth should equal the clinical crown height, with a minimum 4–5 mm of apical gutta-percha left undisturbed. Advance incrementally, withdrawing and irrigating every 2–3 mm to clear dentinal debris and prevent binding.
- Gutta-Percha Removal Sequence — Remove coronal gutta-percha with a heated plugger or Gates Glidden burs (#2, #3) before using the post drill. The Unimetric drill is designed to finish and size the post space, not to remove bulk obturation material; using it to remove large volumes of GP risks bending or fracturing the drill tip at depth.
- Post Removal Tip (Woodpecker G8) — For retreatment cases requiring Unimetric post removal, dedicated post removal ultrasonic tips (such as the Woodpecker G8) vibrate around the post to dissolve the cement film rather than the drill cutting into the post metal; this is the recommended approach before attempting post retrieval with a removal wrench.
Unimetric Post Drill Sizes at a Glance
| Drill Size | Colour Code | Post Diameter | Root Indication |
|---|---|---|---|
| 1 | Pink | 1.0 mm | Mandibular incisors, narrow lower premolars |
| 2 | Grey | 1.2 mm | Upper lateral incisors, lower premolars |
| 3 | Purple | 1.4 mm | Upper central incisors, upper premolars |
| 4 | White | 1.6 mm | Upper canines, wider molar roots |
| 5 | Yellow | 1.8 mm | Wide molar roots with adequate wall thickness |
Availability & Delivery in Egypt
MedSTA supplies Unimetric post drills and complementary post removal tips (Woodpecker G8), priced in EGP from 199 EGP. Cairo and Giza delivery within 1–3 business days; nationwide Egypt within 3–5 business days.
Frequently Asked Questions
What is the purpose of a Unimetric post drill and how does it differ from a Gates Glidden bur?
What is the purpose of a Unimetric post drill and how does it differ from a Gates Glidden bur?
A Unimetric post drill is a tapered bur calibrated specifically to the diameter and taper of the Unimetric passive post system, used to create a post space whose geometry exactly mirrors the post being placed. Gates Glidden burs are cylindrical orifice enlargers used for removing bulk obturation material and shaping the coronal canal third — they do not produce the specific taper required for passive Unimetric post seating. Use Gates Glidden burs (#2, #3) first to remove the bulk of coronal gutta-percha, then use the Unimetric drill to finish the post space to the correct dimensions.
At what rotational speed should Unimetric post drills be operated?
At what rotational speed should Unimetric post drills be operated?
Unimetric post drills should be operated at low speed (800–1500 rpm) using a latch-type contra-angle handpiece with continuous water irrigation. High-speed rotation generates frictional heat that risks thermal injury to the periodontal ligament and creates dentinal microcracks in post space walls that reduce subsequent cement bond strength. Advance the drill incrementally — withdraw every 2–3 mm to clear debris and prevent binding or bending at depth.
How much gutta-percha should remain after Unimetric post space preparation?
How much gutta-percha should remain after Unimetric post space preparation?
A minimum of 4–5 mm of gutta-percha must remain in the apical portion of the root canal after post space preparation to maintain the apical seal and prevent microleakage between the periapical tissues and the restored crown. Never remove all obturation material in pursuit of maximum post length — the apical seal is non-negotiable regardless of how much additional retention length might be gained. Mark the drill with a rubber stopper at the planned preparation depth before insertion.
Can the same Unimetric drill be reused for multiple preparations before replacement?
Can the same Unimetric drill be reused for multiple preparations before replacement?
Unimetric drills are designated as reusable instruments — they can be sterilised and reused. However, tip sharpness degrades with use; a dull drill requires more force, generates more heat, and produces a rougher post space surface that may compromise cement film thickness uniformity. Inspect the drill tip under magnification after each use and replace when visible wear, distortion, or cutting surface degradation is present. In Egyptian dental practice, where post space preparations may involve calcified or sclerotic canals, drill tips degrade faster and should be inspected more frequently.
Does MedSTA supply Unimetric post drills and post removal tips across Egypt?
Does MedSTA supply Unimetric post drills and post removal tips across Egypt?
Yes — MedSTA supplies Unimetric-matched post drills in all sizes (from 199 EGP per drill for generic versions) and the Woodpecker Tip Post Removal G8 ultrasonic tip (650 EGP) for retreatment cases requiring post removal, all priced in EGP. Cairo and Giza delivery within 1–3 business days; all other Egyptian governorates within 3–5 business days.