The best thing to brush your dentures with is a soft-bristled denture brush and a non-abrasive denture cleanser. Regular toothpaste is one of the most common mistakes denture wearers make, because it can scratch and dull the acrylic surface over time. Mild dish soap is a decent backup if you don’t have denture cleanser on hand, though it lacks the antimicrobial properties of a dedicated product.
Why Regular Toothpaste Is a Problem
Toothpaste is designed to polish natural enamel, which is one of the hardest substances in the human body. Denture acrylic is far softer. Most toothpastes contain abrasive particles rated on a scale called Relative Dentin Abrasivity (RDA). Toothpastes with an RDA above 80 are considered highly abrasive, and many popular whitening and tartar-control formulas fall into that range or higher.
When you scrub denture acrylic with an abrasive paste, you create tiny scratches across the surface. Those scratches are invisible at first, but they become perfect hiding spots for bacteria and fungus. Over weeks and months, the scratched surface gets progressively harder to clean, develops stains faster, and can harbor the kind of fungal buildup that leads to infections. The dentures may also lose their polished appearance and take on a dull, roughened look.
What to Use Instead
A non-abrasive denture cleanser is the safest daily option. These come in paste, gel, or cream form and are specifically formulated to clean acrylic and metal frameworks without scratching. Look for products labeled “non-abrasive” or “for dentures” rather than grabbing whatever is next to the toothbrushes.
If you don’t have denture cleanser available, a small amount of mild liquid dish soap works as a temporary substitute. It will remove food debris and some surface film, but research published in the British Dental Journal notes that regular soap lacks the antimicrobial properties found in dedicated denture cleansers. It’s fine in a pinch, not ideal as your permanent routine.
A few things to avoid entirely:
- Bleach or bleach-containing products. These can weaken acrylic, fade the pink gum-colored portions, and corrode any metal clasps on partial dentures.
- Stiff-bristled brushes. They scratch the surface just like abrasive paste does.
- Strong household cleansers. Anything you wouldn’t put in your mouth has no business on something that sits against your gums all day.
Choosing the Right Brush
A denture brush is shaped differently from a regular toothbrush. Most feature a dual-head design: one side is flat and wide for scrubbing the broad, smooth surfaces of the denture, and the other side is narrow and angled for getting into the grooves, clasps, and the area that sits against your palate or gums. The bristles are softer than a standard toothbrush to prevent surface damage.
Several widely available options include the GUM Denture Brush (dual-head with angled bristles), the Oral-B Denture Brush (known for its ergonomic handle), and the TePe Denture Brush, which is compact enough for travel. If you can’t find a dedicated denture brush, a regular toothbrush with extra-soft bristles will work. Just avoid anything labeled “medium” or “firm.”
The ergonomic handle on most denture brushes isn’t just a marketing feature. If you have arthritis or reduced grip strength, the thicker, contoured handle makes a real difference in how thoroughly you can clean.
How to Brush Dentures Properly
Remove your dentures and rinse them under running water first to wash away loose food particles. Then apply a small amount of non-abrasive denture cleanser (or dish soap) to your dampened brush. Brush all surfaces: the teeth, the pink acrylic base, and especially the side that rests against your gums. That tissue-facing side collects the most bacterial and fungal buildup, even though it looks cleaner than the outer surface.
Pay attention to any grooves, clasps, or attachment points where debris likes to hide. Use the narrow head of your denture brush for these areas. Rinse thoroughly when finished, since leftover cleanser residue can irritate your mouth. Brush at least once daily, ideally before bed, and always after soaking. Soaking loosens buildup, and brushing removes what soaking alone can’t.
Water Temperature Matters
Always use cool or lukewarm water when rinsing and soaking your dentures. Hot water can damage denture acrylic in ways that aren’t immediately obvious. Research shows that acrylic exposed to high temperatures absorbs water more aggressively, which reduces surface hardness by nearly 6%. Over time, this weakens the material and can cause warping, meaning your dentures may stop fitting properly.
Hot water combined with alkaline cleaning tablets is especially problematic. The combination can give dentures a bleached, faded appearance due to surface degradation of the acrylic. There’s no need to use warm water for cleaning effectiveness. Room-temperature water works perfectly well.
What Happens When You Don’t Clean Properly
The most common consequence of poor denture hygiene is denture stomatitis, a fungal infection that affects the tissue underneath your dentures. It’s caused by an overgrowth of Candida, particularly a species called Candida albicans, which naturally lives in your mouth in small amounts. When dentures aren’t cleaned well, the fungus colonizes the denture surface and multiplies against the warm, moist tissue of your palate.
Denture stomatitis shows up as red, inflamed patches on the roof of your mouth or along your gums. It can be painless at first, which means many people don’t catch it until it’s well established. Risk factors that compound the problem include wearing dentures overnight (your tissue needs time to breathe), smoking, and inconsistent cleaning habits. The condition is treatable, but it tends to come back if the underlying hygiene routine doesn’t change.
Soaking and Brushing Work Together
Soaking your dentures overnight in a denture cleansing solution helps loosen plaque and kill microorganisms that brushing alone might miss. But soaking is not a replacement for brushing. Think of it the same way you’d think about soaking a dirty pan: the soak loosens the grime, but you still need to scrub it off. Brush your dentures after soaking to remove anything the solution has dislodged.
When your dentures are out of your mouth overnight, store them submerged in the soaking solution or plain water. Denture acrylic can dry out and become brittle or change shape if left exposed to air for extended periods. Just make sure to rinse them well before putting them back in your mouth, especially if you’ve used a chemical soaking tablet.