Dental Curettes: Types and Uses

By Dentmedhub Team 2 Views Aug 21, 2026

Dental Curettes: Types and Uses

Introduction

Dental curettes are hand instruments used in periodontal cleaning and scaling to remove calculus, plaque, and deposits from the surface of teeth. Curettes include universal and area specific Gracey curettes. Universal curettes have a rounded toe and two sides and can be used on different surfaces of the teeth. Gracey curettes are specific to a particular area with an offset and one cutting edge.

Among the basic types, dental curettes include standard, rigid, After Five, Mini Five, Langer, furcation, and other variations for specific surfaces, pockets, and calculus. It is important to understand the differences between curettes and the purposes they serve to choose the right instrument. This article will discuss the types of curettes, Gracey numbers, uses, differences, selection criteria, maintenance, and other related aspects.

What are the main types of dental curettes?

The two main types of periodontal curettes are universal curettes and Gracey curettes. Universal curettes have a rounded toe, two sharp edges, and can be used on several tooth surfaces. Gracey curettes are used on specific tooth areas and have an offset, with only one working edge. Some of the most common patterns include 1/2 and 3/4 for anterior teeth, 5/6 for anterior teeth and premolars, 7/8 and 9/10 for posterior facial and lingual surfaces, 11/12 and 15/16 for posterior mesial surfaces and 13/14 and 17/18 for posterior distal surfaces. Modified Gracey curettes such as After Five and Mini Five provide better access to deep pockets and narrow surfaces

What Is a Dental Curette?

A dental curette is a hand instrument used in scaling and root-surface debridement. The working end of the periodontal curette is designed to conform to the contours of the tooth surface, thus allowing a trained operator to effectively remove calculus and deposits while avoiding damage to the tooth.

A curette has three main parts:

Handle
Shank
Blade or working end
The working end is further characterized by the following parts:
Tip or toe
Back or shaft
Cutting edge

The design of the working end determines the type of curette. A universal curette has a universal blade that can be used on different surfaces of the teeth. It has two cutting edges that can be used in a single surface and a rounded toe, which allows adaptation to different contours

On the other hand, Gracey curette has an offset and is used on specific surfaces of the teeth. The blade of the Gracey curette has two sides, but only one side is functional

Dental curettes play a significant role in periodontal treatment and instrumentation since it is not always possible to access subgingival deposits visually. Additionally, the curette’s design, tactile sensation of the instrument, angulation, and stroke determine the ability to identify and remove deposits.

It is important to understand the difference between periodontal and surgical curettes. Periodontal curettes, such as Gracey curettes are used in scaling while surgical curettes, including Lucas curettes, are used in specialized surgeries. Surgical curettes are not used interchangeably with periodontal curettes. For instance, the catalog by HuFriedy Group makes a distinction between periodontal curettes and surgical curettes

Simply put, a periodontal curette is used when precision, adaptation to the surface, and the controlled removal of calculus are necessary.

Types of Dental Curettes

The different types of curettes include those that are distinguished by design, application, shank length and stiffness, and specific purposes.

1. Universal Curettes

The universal curettes have a universal blade and are used for scaling on different surfaces of the teeth. They have a rounded toe, rounded back, and two cutting edges. Both edges can be used as a working edge and allow adaptation to different root contours

The common patterns of universal curettes include:

Columbia
Barnhart
Younger Good
McCall
Other patterns from different manufacturers

The universal curettes are effective for general periodontal instrumentation as the same working end can be used on different surfaces of the teeth. They offer flexibility with a smaller variety of patterns.

2. Gracey Curettes

Gracey curettes are area specific curettes with an offset and are used to access specific tooth surfaces. The different patterns include:

Gracey 1/2
Gracey 3/4
Gracey 5/6
Gracey 7/8
Gracey 9/10
Gracey 11/12
Gracey 13/14
Gracey 15/16
Gracey 17/18

The numbering of the Gracey curettes is not random. Each pattern has a unique shank and blade design to provide better access to specific surfaces and contours. For instance, the 1/2 and 3/4 are designed for anterior teeth while 5/6 are suitable for anterior teeth and premolars

3. Rigid Gracey Curettes

The rigid Gracey curettes have a thicker or more rigid shank than the standard curettes. They can be used for moderate to heavy calculus deposits. Extra-rigid Gracey curettes are suitable for deposits that require initial debridement. Thus, rigid curettes have a stiff shank, offer greater control, and are used for moderately hard deposits. In contrast, extra-rigid Gracey curettes are used for very hard calculus deposits

4. After Five Curettes

The After Five curettes have a longer terminal shank and a narrower blade than the standard Gracey curettes. They provide better access to deeper periodontal pockets and root surfaces.

After Five curettes are recommended when deeper access is required

According to the description provided by HuFriedy Group, After Five instruments have a long terminal shank and narrow blade in comparison to standard curettes

5. Mini Five Curettes

The Mini Five curettes are modified to provide access to narrow pockets and other challenging areas. Their shorter blades allow adaptation to the contours of the narrow pockets and root concavities.

Mini Five curettes are a variation of standard Gracey curettes that allow the operator to gain access to small pockets and narrow areas. The catalog by HuFriedy Group provides an option to choose from standard, After Five, and Mini Five curettes, which shows the significance of the modification to the standard curette patterns

6. Langer Curettes

Langer curettes have the shank of a Gracey curette and the blade of a universal curette. As a result, they provide the benefit of an area-specific shank and the flexibility of a universal blade that can be adapted to both mesial and distal surfaces.

Langer curettes come in standard, After Five, and Mini Five variations

7. Furcation Curettes

Furcation curettes are used to access and scale furcation and concavities. They have special designs that allow the operator to access specific areas. For instance, some furcation curettes have buccal lingual access while others have mesial-distal access. According to the catalog by HuFriedy Group, furcation curettes are available for scaling furcation and root concavities

8. Implant Maintenance Curettes

Dental implants require special instruments to avoid damaging the abutment and the implant surface. Thus, different manufacturers provide titanium or special metal curettes that are suitable for use on implants. For instance, in the catalog by HuFriedy, titanium curettes and titanium scalers are available for working on implants

Gracey Curette Numbers and Their Uses

It is important to understand the uses of different Gracey curettes to choose the appropriate instrument for specific surfaces. The following table provides the general use of various Gracey curettes.

Gracey Curette Number Common Area of Use

1/2 Anterior teeth, all surfaces
3/4 Anterior teeth, all surfaces
5/6 Anterior teeth and premolars
7/8 Premolars and molars, facial surfaces
9/10 Posterior teeth, facial surfaces
11/12 Posterior, mesial surfaces
13/14 Posterior, distal surfaces
15/16 Posterior, mesial surfaces
17/18 Posterior, distal surfaces, especially difficult distal surfaces

These instruments are designed with specific areas in mind, with different angles and depths, but individual preference and technique can play a role. As per Deppeler, the use of these instruments follows the convention of instrumentation with modified curettes

Gracey 1/2 and 3/4

The Gracey 1/2 and Gracey 3/4 curettes are used on the surfaces of the anterior teeth. They allow adaptation to the anterior teeth, while providing easier access to the toe of the instrument.

Gracey 5/6

Gracey 5/6 is ideal for use on the anterior teeth and premolars. It provides a working end that allows adaptation to the anterior teeth and transition to the premolars

Gracey 7/8 and 9/10

Gracey 7/8 and Gracey 9/10 are designed to provide access to the facial and lingual surfaces of the posterior teeth, especially the molars and premolars.

Gracey 11/12 and 15/16

Gracey 11/12 and Gracey 15/16 curettes are designed for the posterior mesial surfaces. They have different shank configurations, allowing the operator to choose the one that is convenient for use.

Gracey 13/14 and 17/18

The Gracey 13/14 and 17/18 curettes are suitable for posterior distal surfaces. According to Pearlson Dental Supply, the Gracey 17/18 curette has a more pronounced shank configuration, which makes it ideal for use on the distal aspects of posterior teeth with challenging access

Uses and Applications of Dental Curettes

Dental curettes are used in different indications that depend on the design of the instrument.

1. Dental Calculus Removal

The main purpose of a curette is to remove calculus deposits. There are two types of calculus: supragingival and subgingival deposits. Subgingival plaque and calculus deposits are particularly common in periodontal disease. Since these deposits are located below the gingiva, a dentist usually cannot see them directly. As a result, the dentist needs to use curettes and other periodontal instruments to access the calculus deposits.

The dentist selects universal curettes for general use and supragingival deposits and Gracey curettes for specific deposits and subgingival calculus. The design of a curette allows adaptation to the contours of the patient’s teeth and gums to effectively remove calculus without damaging the periodontal tissues

2. Root Surface Instrumentation

Root surface instrumentation is indicated for calculus removal and periodontal debridement. Gracey curettes are appropriate for root-surface instrumentation since their offset design allows adaptation to the contours of the root surface. According to PubMed Central, the periodontal instrument should be adapted to the root surface, and the appropriate cutting edge should be selected for effective instrumentation

3. Periodontal Pocket Instrumentation

Periodontal pockets can make it difficult for a dentist to access deposits and calculus. An After Five curette has an extended terminal shank and is suitable for extended access into deep periodontal pockets. Various After Five curettes are available for moderate to deep pockets, with different blade widths and other characteristics.

4. Narrow or Deep Pockets

Mini Five curettes are recommended for narrow or deep pockets. The reduced size helps the dentist to access challenging areas without damaging pocket tissues. According to the product catalog by HuFriedy Group, Mini Five and Micro Mini Five are specially modified Gracey curettes, designed for use on narrow pockets. The instruments allow effective instrumentation of pocket areas with a reduced blade size

5. Furcation Instrumentation

Scaling furcation areas can be challenging since the root surface is not easily accessible. Specialized furcation curettes have specific designs to address this issue and provide access to the furcation area. Various furcation curettes allow buccal lingual or mesial distal access to the furcation for effective instrumentation.

6. Heavy Calculus Deposits

Dentists can use curettes with rigid or extra rigid shanks for heavy calculus deposits. Such curettes address moderate to severe deposits

7. Periodontal Maintenance Instrumentation

A dentist can use curettes during periodontal maintenance examinations to address the presence of any calculus and deposits. The choice of instrument depends on the surfaces being examined and the pockets present.

8. Implant Maintenance Instrumentation

Implant maintenance requires special instruments to avoid damaging the abutment and implants. Implant curettes are used during maintenance appointments to address deposits and calculus. This approach is essential since traditional curettes and calculus removal techniques may damage the implant.

Universal vs Gracey Curettes: Which Is Better?

Each of the two main types of curettes has its advantages and disadvantages, and they are not necessarily interchangeable. The following table provides an overview of the similarities and differences between universal and Gracey curettes.

Feature	Universal Curette	Gracey Curette
Primary design	General purpose	Area specific
Primary cutting edges	Two cutting edges	Two cutting edges
Toe	Rounded	Rounded
Blade	Orientation	Universal Offset
Surface coverage	Multiple surfaces	Specific surfaces
Common use	General periodontal instrumentation	Specific instrumentation
Instrument selection	Fewer patterns	Multiple patterns

Access to surfaces Versatile Highly targeted

Universal curettes are beneficial when versatility is required, and a dentist wants fewer patterns. According to the description provided by HuFriedy Group, universal curettes are suitable for light to moderate supragingival and subgingival deposits. The instrument has two edges that can be used for distal and mesial instrumentation

On the other hand, Gracey curettes have an offset and a specific working end that can be adapted to specific surfaces.

Thus, when choosing between these two types of curettes, it is essential to consider the dentist’s needs and preferences.

Comparison of Universal and Gracey dental curettes, highlighting their different blade and shank designs.

How to Choose the Right Dental Curette

When choosing a curette, a dentist should keep several factors in mind.

1. Determine the Needed Area of Curette

The dentist should identify the tooth surfaces that require instrumentation and select area-specific curettes. The dentist may need to use anterior, posterior, and buccal-lingual curettes. Additionally, there are mesial and distal curettes that are specially designed for these surfaces.

For instance, when the dentist needs posterior mesial instrumentation, Gracey 11/12 or Gracey 15/16 curette should be used. In contrast, for posterior distal instrumentation, Gracey 13/14 or Gracey 17/18 curette is indicated

2. Determine the Needed Pocket Depth Access

The dentist should choose curettes according to the depth of pockets. Standard curettes are suitable for pockets of moderate depth, but for deeper pockets, the dentist can use After Five curettes. According to PubMed Central, extended access curettes such as the After Five curettes are indicated for deep pockets

3. Determine the Needed Blade Size Access

The dentist should also consider the blade size to ensure that it is appropriate for the pocket size and the surface being instrumented. For instance, narrower pockets may be addressed with Mini Five curettes. In contrast, larger pockets and visible calculus can be addressed with standard curettes.

A large blade may not be suitable for small areas since it can cause trauma to the surrounding tissues

4. Determine Deposit and Calculus Characteristics

The characteristics of deposits and calculus can also influence the choice of curette. For instance, the dentist can use standard curettes for light to moderate deposits and rigid curettes for moderate to heavy deposits.

5. Determine Whether Area Specific or Universal Curette Is Needed

If the dentist wants fewer patterns and more versatility, universal curettes are a good option. However, if the dentist wants more area-specific options and more patterns, Gracey curettes are preferable.

6. Consider Handle Design

An appropriate handle design is critical to ensure that a dentist can comfortably and securely hold the curette. The dentist should consider the handle diameter, design, texture, weight, and other characteristics.

7. Consider Material and Manufacturing

It is essential to choose a high quality instrument that will have the appropriate geometry to effectively address the specific indication. The dentist should also consider the brand’s reputation, sharpening recommendations, resistance to corrosion, and other factors.

According to ADA News , there are specific standards for periodontal curettes and scalers, including general requirements related to materials, performance, and dimensions.

Dental Curette Product Recommendations

When choosing curettes for a dental practice, DentMedHub buyers should consider selecting a combination of universal and standard curettes. Instead of buying various instruments with similar indications, it is more cost effective to buy a set around a specific type of curette. The buyer should consider the following options:

Gracey 1/2 or 3/4 for anterior surfaces
Gracey 5/6 for anterior and premolar surfaces
Gracey 7/8 or 9/10 for posterior facial and lingual surfaces
Gracey 11/12 and 15/16 for posterior mesial surfaces
Gracey 13/14 or 17/18 for posterior distal surfaces

For deep pockets, the buyer should consider After Five or Mini Five curettes.

For general purpose curettes with versatile use, the options might include Columbia, Barnhart, or other universal curettes.

When searching for these curettes on DentMedHub, the buyer should keep in mind the Gracey number, the type of shank, and the blade dimensions, handle design, material, brand, and indications.

Care and Maintenance of Dental Curettes

When selecting and buying dental curettes, it is essential to consider their care and maintenance since these aspects influence the instruments’ performance.

1. Clean Immediately After Use

The dentist or hygienist should clean the curette according to the manufacturer’s instructions after each use to prevent biological material from drying on the instrument.

2. Consider Compatible Cleaning Methods

Depending on the manufacturer’s recommendations, various cleaning methods can be used. The cleaning process can be manual or automated with ultrasonic cleaning or special instrument cleaning machines.

3. Inspect Working End Before Processing

Before processing and using the curette, the operator should inspect the working end for the following issues:

Dull cutting edges
Bent blades
Damaged toe
Corrosion
Surface irregularities
Loose parts
Changes to the working end geometry

The instrument should not be used if any of the aforementioned issues are present.

4. Sharpen Instruments Appropriately

It is particularly important to sharpen periodontal curettes appropriately. Sharpening a universal curette is relatively simple as it only involves two cutting edges that meet at the rounded toe. According to the guidance provided by HuFriedy Group, the geometry of the blade and terminal shank is critical to the sharpening process

Incorrect sharpening can lead to changes in the working end geometry.

5. Avoid Excessive Sharpening

Excessive sharpening can alter the geometry of the instrument. The dentist should only sharpen the instrument enough to restore its cutting edge.

6. Sterilize According to Manufacturer’s Instructions

The dentist should follow the manufacturer’s guidelines and the dental practice’s infection control policies when sterilizing reusable periodontal curettes.

7. Store Instruments Appropriately

The dentist should store processed instruments in an appropriate environment. Ideally, sterile instruments should be stored in a dry and clean environment. Specialized storage solutions, such as cassettes, should also be used to organize instruments and prevent their working ends from damaging each other.

8. Monitor Instrument’s Performance

It is important to monitor the performance of a curette to ensure its effectiveness and avoid compromising the safety of the operator and the patient. Even the highest-quality curettes eventually require replacement when they can no longer provide the necessary performance.

Common Mistakes When Using or Buying Dental Curettes

There are several common mistakes that dentists and hygienists make when buying and using dental curettes.

Mistake 1: Treating Every Curette as a Universal Curette

A Gracey 11/12 curette is not a universal curette, and it is not suitable for all surfaces of the teeth. It is designed specifically for posterior mesial surfaces. Similarly, other Gracey curettes have specific indications and should only be used on specific surfaces.

Mistake 2: Using an Inappropriate Gracey Number for a Specific Surface

The inappropriate use of a Gracey number can lead to ineffective instrumentation. For instance, using a posterior mesial curette on posterior distal surfaces will lead to poor instrumentation results.

Mistake 3: Failing to Consider Pocket Depth

Some curettes have deeper access than others, and a dentist should be aware of this fact when selecting an instrument. According to PubMed Central, the extended access curettes such as the After Five curettes should be used for deep pockets

Mistake 4: Using the Wrong Cutting Edge for a Specific Surface

Gracey curettes are recommended for use on specific surfaces, and each has a particular cutting edge that should be used for instrumentation. According to the Elsevier E-Library, improper working-end selection can lead to inefficient instrumentation

Mistake 5: Applying Excessive Pressure During Instrumentation

Many clinicians make the mistake of using excessive pressure when working on calculus deposits. This mistake can lead to several problems, such as damage to periodontal tissues, operator fatigue, and poor instrumentation results.

Mistake 6: Assuming that Larger Curettes Are Always Better

The size of a curette is an essential consideration, but it should not be the only factor. Sometimes a smaller curette can be a better option, especially when working on smaller pockets. A large blade can cause traumatic tissue responses and poor instrumentation results.

Mistake 7: Failing to Maintain Curettes Properly

In addition to correct usage, proper maintenance is necessary to ensure the long-term performance of curettes. The dentist should follow the appropriate cleaning and storage recommendations.

Mistake 8: Selecting Inappropriate Handle Designs

The handle design and size are critical to the successful use of a curette, and these factors should not be overlooked. A narrow handle may be uncomfortable and difficult to use, especially in certain procedures.

Mistake 9: Making Incorrect Sharpening Decisions

The dentist should not underestimate the importance of sharpening decisions. Incorrect sharpening can affect the performance of a periodontal curette.

Mistake 10: Making Purchasing Decisions Based on Price

It is understandable that cost is an important consideration when buying new instruments. However, a dentist should not base all purchasing decisions on price since cheap instruments can compromise the quality of care.

Frequently Asked Questions

Q. What are the two main types of curettes?

A: The two main types of curettes are universal curettes and Gracey curettes.

Q. Are all Gracey curettes area specific?

A: Yes, all Gracey curettes are area-specific. Different patterns provide access to different surfaces.

Q. Can universal curettes be used on all surfaces?

A: Yes, universal curettes can be used on all surfaces since they have two cutting edges.

Q. Can a universal curette replace a Gracey curette?

A: No, a universal curette cannot replace a Gracey curette since both curettes are designed for different purposes.

Q. What are some variations of universal curettes?

A: Some variations include standard, rigid, After Five, Mini Five, Langer, furcation, and other specialized curettes.

Q. Are Gracey 1/2 and 3/4 curettes used on the same surfaces?

A: Yes, they are used on the same surfaces, but they have slightly different working ends.

Q. Does every dentist prefer the same curette?

A: No, different dentists have different preferences.

Conclusion

In conclusion, there are various types of dental curettes that can be used for different purposes. Universal curettes have a broader application and include standard, rigid, After Five, Mini Five, and other variations. Area specific curettes include Gracey curettes that have specific indications and can be used on different surfaces. The differences between universal and Gracey curettes have been discussed in this article, along with the recommendations on how to choose the most appropriate curette and maintain it in an optimal condition. Additionally, the most common mistakes when using and buying a curette have been identified.

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