Dental excavators are among the most frequently used hand instruments in restorative dentistry, essential for removing carious dentin, shaping cavity preparations, and cleaning out debris before placing fillings. This guide covers how to choose the right excavator sizes and styles for your practice, with a focus on spoon excavators and English pattern excavators available from EBIKO Dental with free shipping across Canada.
As of April 2026, restorative procedures remain the bread and butter of most general dental practices in Toronto and the Greater Toronto Area. Whether you are performing a simple Class I composite or managing a complex Class II restoration, having the right excavator in your hand makes a measurable difference in efficiency, tactile feedback, and clinical outcomes.
What Are Dental Excavators and Why Do They Matter?
Dental excavators are hand instruments designed to remove soft, decayed dentin from cavity preparations. They feature a working end with a sharp, scooped blade that allows the operator to scrape and lift carious material while preserving sound tooth structure. Unlike rotary instruments that can sometimes over-prepare a cavity, hand excavators give the clinician direct tactile feedback — you can feel the difference between soft caries and firm, healthy dentin.
There are two primary categories of dental excavators used in Canadian practices:
- Spoon excavators: Feature a round, spoon-shaped blade ideal for scooping out bulk carious dentin. Available in multiple diameters to match different cavity sizes.
- English pattern excavators: Feature a more elongated, hatchet-like blade profile that provides excellent access in tighter preparations and proximal boxes.
Both types are essential in a well-equipped restorative tray setup. Most practitioners find that having three to four sizes of each type covers the range of clinical situations they encounter daily.
Spoon Excavators: Sizes and Clinical Applications
Spoon excavators are numbered by blade diameter, and selecting the right size depends on the cavity preparation you are working in. Here is a practical breakdown of the sizes available from EBIKO Dental:
#14 Spoon Excavator (1.4mm)
The #14 Spoon 1.4mm Excavator is a mid-range workhorse. Its 1.4mm blade diameter makes it versatile enough for most Class I and Class II preparations in premolars and molars. This is the size many clinicians reach for first when excavating caries in routine restorative cases.
#17 Spoon Excavator (1.2mm)
The #17 Spoon 1.2mm Excavator features a slightly smaller blade diameter, making it well-suited for more precise caries removal in smaller preparations or when working near the pulp floor. When you need finer control — particularly in deep caries excavation where you are trying to preserve as much sound dentin as possible — the #17 gives you that extra degree of precision.
#18 Spoon Excavator (1.5mm)
The #18 Spoon 1.5mm Excavator is the slightly larger option, useful for initial bulk caries removal in larger cavities. When you open up a Class II preparation and find extensive decay, starting with the #18 lets you efficiently remove the majority of soft dentin before switching to a smaller instrument for final excavation near critical areas.
#19 Spoon Excavator (2.0mm)
The #19 Spoon 2.0mm Excavator is the largest in the spoon series and is particularly useful for large MOD preparations and pediatric stainless steel crown preps where you need to scoop out significant amounts of carious material quickly. Its larger blade covers more surface area per stroke.
Pro Tip: Set up your standard restorative tray with at least the #17 (1.2mm) and #18 (1.5mm) spoon excavators. These two sizes cover approximately 80% of clinical situations in adult restorative dentistry. Add the #14 and #19 to your supplementary tray for more specialized cases.
English Pattern Excavators: Precision Access for Complex Preparations
English pattern excavators offer a different blade geometry that excels in specific clinical situations. The elongated blade shape provides better access to proximal walls and line angles in Class II, III, and IV preparations where a round spoon blade cannot reach effectively.
#243 English Pattern (1.0mm)
The #243 English Pattern 1.0mm Excavator is the finest in the series. Use this instrument when you need precision caries removal in small, deep preparations or when working in the proximal box of a Class II where space is tight. The 1.0mm blade reaches into areas that larger instruments simply cannot access.
#244 English Pattern (1.4mm)
The #244 English Pattern 1.4mm Excavator is the mid-range English pattern instrument. It balances cutting efficiency with access, making it a solid all-around choice for general restorative work where the English pattern blade shape is preferred.
#245 English Pattern (2.0mm)
The #245 English Pattern 2.0mm Excavator provides the largest cutting surface in the English pattern lineup. It is efficient for initial excavation in larger preparations and for cleaning out bulk caries along gingival floors.
#246 English Pattern (0.8mm)
The #246 English Pattern 0.8mm Excavator is the finest English pattern instrument available. When you are performing selective caries removal near the pulp in a deep Class II, the #246 gives you maximum tactile control with minimal risk of mechanical pulp exposure. This instrument is particularly valued by clinicians who practise minimally invasive dentistry.
Pro Tip: When performing indirect pulp capping procedures, use the #246 (0.8mm) English pattern excavator with a gentle, scooping motion rather than a forceful scraping action. The fine blade lets you feel the transition from soft to firm dentin, helping you decide when to stop excavating and place your liner.
Spoon vs. English Pattern: When to Use Which
Both styles have their place in restorative dentistry. Here is a quick clinical decision guide:
- Use spoon excavators for open cavity preparations with good access, bulk caries removal, and situations where you need to scoop material out of a broad, concave surface (e.g., occlusal caries in molars).
- Use English pattern excavators for proximal boxes, line angles, tight interproximal spaces, and preparations where a straight-line approach gives better access than a scooping motion.
- Use both together in complex multi-surface restorations: start with a larger spoon excavator for bulk removal, switch to an English pattern for line angle refinement, and finish with a smaller spoon for final caries check near the pulp floor.
Instrument Care and Maintenance
Excavators require sharp working ends to function effectively. Dull excavators force the clinician to apply more pressure, reducing tactile feedback and increasing the risk of accidental pulp exposure. Follow these maintenance practices:
- Sharpen excavators on a flat Arkansas stone using a circular motion that follows the blade's curvature
- Test sharpness by lightly drawing the blade across a plastic stick — a sharp excavator will bite and shave the plastic cleanly
- Sterilize according to RCDSO infection prevention and control (IPAC) guidelines after every use
- Store in sterilization cassettes to protect cutting edges from damage during transport and autoclave cycles
EBIKO Dental excavators are manufactured from surgical-grade stainless steel that holds an edge through multiple sterilization cycles. The instruments are designed for the demands of high-volume Canadian practices.
Order Dental Excavators from EBIKO Dental
EBIKO Dental carries the full range of spoon and English pattern excavators for Canadian dental practices. All instruments ship from within Canada with free shipping on orders over $99 CAD in the GTA, $199 CAD in Ontario, and $299 CAD across Canada. EBIKO Dental also offers a price match guarantee on all dental instruments.
Shop the complete selection at ebiko.ca and equip your restorative trays with instruments that deliver consistent clinical performance.
Frequently Asked Questions
Q: What size dental excavator should I use for deep caries removal near the pulp?
For deep caries removal near the pulp, use the smallest excavator that allows adequate access — typically a #246 English Pattern (0.8mm) or #17 Spoon (1.2mm). The smaller blade gives you maximum tactile feedback to distinguish between soft caries and firm reparative dentin, reducing the risk of inadvertent pulp exposure during selective caries removal.
Q: How often should dental excavators be sharpened?
Sharpen excavators when you notice reduced tactile feedback or when the blade no longer cleanly shaves carious dentin. In a busy general practice, this typically means sharpening after every 15 to 20 uses. Regular maintenance preserves clinical efficiency and extends instrument life significantly.
Q: Does EBIKO Dental ship excavators across Canada?
Yes. EBIKO Dental ships all dental instruments across Canada with free shipping thresholds: orders over $99 CAD ship free in the GTA (Toronto, Mississauga, Brampton, Markham, Vaughan, Scarborough, Etobicoke, North York), orders over $199 CAD ship free across Ontario, and orders over $299 CAD ship free Canada-wide. EBIKO Dental also offers a price match guarantee on all products.