Comparison of Dental Supplements and Chews

Oral HealthComparisonsMeongsiljang Veterinary Advisory Board

We compare dental supplements and dental chews for dogs and cats based on ingredients, mechanisms of action, and safety. This is a practical guide to choosing the right product for managing tartar, bad breath, and gum health.

What Are Dental Supplements and Chews?

A dog and a cat sitting in front of dental chews and water additives.

Dental supplements and chews are oral care products designed to assist with brushing by helping to reduce tartar, plaque, and bad breath. The most important thing to remember is that they cannot replace toothbrushing. Veterinary dental textbooks identify toothbrushing as the fundamental standard for gum stimulation and plaque control, while supplements and chews serve as complementary aids to fill in the gaps. The key is choosing the right approach—whether enzymatic ingredients, physical abrasion, or water additives—for your pet. Keep in mind that no single product can match the effectiveness of brushing on its own.

Dental Products Fall Into Four Main Categories

Commercial dental care products can be grouped into four categories based on how they work: - Dental chews and treats: Remove tartar through the friction of chewing. - Water additives: Mix into drinking water to help inhibit plaque formation. - Toothpaste and gels: Clean directly using enzymes and abrasives. - Oral supplements (powders and capsules): Contain specific ingredients that are said to support oral health, but evidence for their effectiveness when used alone is limited. No single product is sufficient on its own. For best results, combine products that suit your pet’s personality and dental condition, and use them alongside regular brushing.

At-a-Glance Comparison by Product Type

Item	Dental Chews/Chews	Water Additives	Toothpaste/Gel	Oral Supplements
Main Action	Physical friction	Antibacterial/plaque suppression	Enzyme/friction	Regulates oral bacteria
Tartar Removal	△ (new only)	X	△	X
Plaque Prevention	O	O	O	△
Bad Breath Improvement	△	O	△	O
Ease of Use	High	Very high	Low	High
Recommended Frequency	Once a day	Daily in drinking water	1–2 times a day	Once a day

O=clear effect, △=adjunctive, X=almost none / Already hardened tartar cannot be removed by any product and requires scaling.

Key Ingredients in Dental Supplements

Safe

해조류 추출물(Ascophyllum nodosum)

구강 세균 바이오필름 형성을 억제해 치석·구취 완화

Dosage: 체중에 맞춘 권장량 준수

다수 임상 연구에서 치석 감소 확인

Safe

폴리인산나트륨(Sodium Hexametaphosphate)

침 속 칼슘과 결합해 치석 석회화를 늦춤

Dosage: 덴탈껌·수첨가제에 소량 첨가

VOHC 인증 제품 다수에 포함

Caution

클로르헥시딘(Chlorhexidine)

강력한 항균 작용으로 플라크 감소

Dosage: 수의사 지시에 따라 단기간 사용

장기간 사용 시 착색·맛 거부 가능

Safe

프로바이오틱스(구강 유산균)

유익균을 늘려 구취 원인균 억제

Dosage: 제품별 용량 따름

초기 임상 단계, 보조적 사용 권장

Safe

녹차 폴리페놀(EGCG)

항산화·항균으로 잇몸 염증 완화 보조

Dosage: 경구 영양제·츄에 첨가

수의치과 보조 성분으로 사용

How to Choose Dental Chews

The effectiveness of dental chews depends on chewing duration and shape. Veterinary dental research shows that longer and varied chewing activities gradually reduce tartar, gingivitis, and alveolar bone loss. However, chews that are too hard can pose a risk of tooth fracture. - Check for the VOHC Seal: The seal from the Veterinary Oral Health Council indicates that the product’s efficacy has been clinically verified, serving as a reliable reference. - Size and Hardness: Choose a size and hardness that allows your pet to chew comfortably for an extended period. - Calories: Since these are treats, adjust the portion size so it doesn’t exceed your pet’s daily caloric intake. - Ingredients: Prioritize products with proven efficacy, such as those with VOHC certification. Chews that are too soft lack sufficient abrasive action, while those that are too hard can cause tooth fractures.

A close-up of a puppy chewing on dental chews

Dental Chews and Supplements to Avoid

- Bone fragments, deer antlers, and dried hooves: These are the leading causes of fractured teeth. - Products containing xylitol: These can cause life-threatening hypoglycemia and liver damage in dogs. - Imported products with unknown origins: These frequently have discrepancies between listed and actual ingredients. - Human toothpaste: The fluoride and surfactants it contains are toxic to pets. If your pet’s teeth are already loose or their gums are bleeding, supplements or dental chews won’t solve the problem. Professional scaling or tooth extraction is necessary.

How to Use Water Additives and Toothpaste

Water additives are designed to be mixed into your pet’s daily drinking water at the recommended dosage. Since strong flavors or odors can reduce water intake, it’s best to start with a half-strength solution. - Water additives and oral rinses: Products containing antibacterial ingredients like chlorhexidine are approved for daily use in dogs and cats. - Toothpaste and gels: Enzyme toothpastes can serve as a supplementary option for pets that resist brushing. - Gauze and finger brushes: These are useful for the initial adaptation phase in pets that refuse standard toothbrushes. Veterinary dentistry textbooks identify toothbrushing as the standard, foundational method for stimulating the gums and managing plaque. Above all, consistent daily care is key.

Using a finger toothbrush to brush your dog's teeth

Cats Are a Little Different

Cats chew less than dogs, so dental chews have limited effectiveness for them. - Water additives are preferred: They’re less likely to be rejected and can be used consistently. - Cat-specific toothpaste: Malt or fish flavors tend to work better. - Dry food crunch: Large kibble designed for dental care (such as t/d) has been reported to reduce plaque and gingivitis more effectively than regular dry food. Veterinary nutrition textbooks also note that food texture impacts oral health. However, simply feeding a “natural” diet doesn’t prevent dental disease, so it’s important to combine any diet with home care like brushing.

When to See a Vet Before Using Supplements or Chews

If you notice any of the following signs, please consult a veterinarian before selecting a product: - A severe bad breath from the mouth that persists for more than two weeks - Red or bleeding gums - Chewing on only one side or dropping food - Excessive drooling - Frequent face scratching or swelling on one side of the face These symptoms are highly indicative of existing periodontitis or a periapical abscess. Please remember that nutritional supplements are intended for prevention and maintenance, not for treating active disease.

Reviewed by a veterinarian

Dr. Tony — Punnawat Phongkittirak

Veterinarian

A veterinarian who majored in veterinary medicine at Khon Kaen University, Thailand, and completed the IVSA program at North Carolina State University in the United States. Drawing on clinical experience at animal hospitals, he works in the pet healthcare field and is dedicated to building a digital care environment that connects pet parents with veterinarians.

Frequently Asked Questions

Does giving my pet dental chews mean I don’t need to brush their teeth?

Not quite. Dental chews only slow down plaque buildup; they don’t clean the entire tooth surface. Brushing should always be part of the routine.

What is VOHC certification?

This is a certification awarded by the American Veterinary Dental Association to products that have demonstrated plaque and tartar reduction through clinical trials. It serves as a highly reliable indicator when choosing a product.

My child won’t drink water because the water additive has an odd taste.

Start with half the recommended amount and gradually increase it. If your pet continues to refuse it, consider switching to a different product or using toothpaste and brushing instead.

How long does it take to see results from oral supplements?

Nutritional supplements based on specific ingredients typically need to be given consistently for several weeks or more before you see results. One study reported a slight reduction in plaque and tartar in cats after about four weeks of administration, so don’t judge their effectiveness over a short period.

Are there any products that can be used by both dogs and cats?

While some water additives can be shared between pets, dental chews and toothpastes vary by species in both dosage and ingredients. Always use products specifically labeled for your pet’s species.