The Plastic Problem in Dentistry: Why Sustainable Oral Care Matters

Dentistry is fundamentally about health. Every day, dental professionals help prevent disease, relieve pain, restore smiles and educate patients about better oral hygiene. But like every area of healthcare, dentistry also has an environmental footprint.

From disposable products and sterilisation processes to packaging, transportation and energy consumption, dental care can generate significant waste and emissions. One of the most visible examples is plastic.

Plastic has undoubtedly transformed modern dentistry. It is lightweight, durable, inexpensive and useful for infection control. However, our reliance on plastic also creates a long-term waste problem—particularly when products are designed to be used for only a few minutes or months but remain in the environment for centuries.

The Toothbrush Problem

Consider something as simple as a toothbrush.

Toothbrushes are an essential part of maintaining good oral health, and dental professionals routinely recommend replacing them every few months. But when millions of people around the world replace their toothbrushes, where do all those old toothbrushes go?

An estimated 23 billion plastic toothbrushes are discarded globally each year.

Most conventional toothbrushes are made from a combination of materials, including plastic handles and synthetic bristles. Because these materials are difficult to separate and process, conventional toothbrushes are generally not accepted through standard household recycling systems.

Instead, many end up in general waste and ultimately landfill.

The problem is that a toothbrush may only be used for a few months, but a plastic toothbrush can take 400 years or more to break down. It doesn't simply disappear when we throw it into a bin. Plastic can persist in the environment for generations, gradually breaking into smaller pieces and contributing to the growing problem of plastic pollution.

A product designed to support our health shouldn't have to create such a long-lasting environmental burden.

Dentistry Has a Carbon Footprint Too

The plastic problem is only one part of the bigger sustainability conversation in dentistry.

Healthcare requires resources. Dental practices use electricity, water, equipment, materials, transportation and a wide range of consumable products. According to estimates, dental practices can contribute up to 5% of healthcare's carbon emissions.

That doesn't mean dentistry should use fewer products where they are necessary for safe and effective patient care. Infection prevention, sterilisation and clinical safety must always remain priorities.

Instead, it means there is an opportunity to look more closely at where waste can be reduced and where more sustainable choices are practical.

And importantly, sustainability doesn't have to begin with a complete overhaul of a dental practice.

Small Changes Can Have a Big Impact

One of the easiest places to start is with everyday oral care products.

Dental professionals have an important role beyond the walls of the clinic. Patients look to their dentists and oral health professionals for recommendations—not just about what products work, but increasingly about what products align with their values.

Switching from conventional plastic toothbrushes to responsibly designed sustainable alternatives can be a relatively simple change.

Depending on the product, this could mean choosing toothbrushes made with renewable materials, biodegradable components or compostable handles and bristles. The key is to look at the whole product lifecycle, rather than simply choosing something because it has an "eco-friendly" label.

A sustainable toothbrush still needs to do its most important job: clean teeth effectively and support good oral health.

Sustainable Dentistry Starts With Better Choices

The goal isn't to eliminate every plastic product from dentistry. In many clinical situations, plastic remains necessary for safety, hygiene and patient care.

The goal is to ask better questions.

• Can this product be reused safely?

• Can unnecessary packaging be reduced?

• Is there a lower-impact alternative?

• Can we choose materials that have a more responsible end-of-life?

• Can we help patients make more sustainable choices at home?

These questions can gradually become part of everyday practice.

For dental professionals, sustainability is not about perfection. It's about progress.

A single toothbrush may seem insignificant. But when billions are discarded every year, the collective impact becomes impossible to ignore. By rethinking the products we use, recommend and provide to patients, the dental profession can take meaningful steps towards reducing waste and its environmental footprint.

Good oral health and a healthy planet don't have to be competing priorities.

With thoughtful choices, dentistry can continue to care for people while also caring for the world they live in.