You know you brush twice a day, use the whitening toothpaste, and floss exactly how your dentist tells you. Maybe you’ve tried whitening strips, and even spent money on a drugstore take-home kit. After all that, your teeth still look the same as they did six months ago. We hear this from patients in Columbia all the time.
Not all discoloration responds to whitening. Some stains live on the surface of your teeth, and those respond well to bleaching. Other stains are deeper, and no amount of whitening strips will touch them.
Dr. Thomas Trinkner has been practicing cosmetic dentistry in Columbia since 1985. He was the first dentist in South Carolina to earn Accredited Member status from the American Academy of Cosmetic Dentistry, a distinction held by fewer than 400 dentists worldwide. He’s seen every type of tooth discoloration and knows how to tell the difference between stains that respond to whitening and stains that need a different approach.
Here’s what happens when whitening doesn’t work, and what you can do about it.
The Two Types of Tooth Stains
To understand why whitening works for some people and not others, you need to know about the two types of stains.
Extrinsic stains live on the surface of your tooth enamel. They come from things you eat, drink, or put in your mouth. Common culprits include coffee, tea, red wine, dark soda, berries, tomato sauce, and tobacco. These stains sit on the enamel surface and respond well to whitening.
Intrinsic stains live inside the tooth, in the dentin layer beneath the enamel. They’re caused by things that happen internally, like medications, trauma, aging, or genetics. These stains are much harder to remove because the whitening agent has to penetrate the enamel to reach them.
If your teeth have extrinsic stains, whitening should work. If they have intrinsic stains, whitening may not do much, no matter how many times you try it.
That’s the first thing Dr. Trinkner checks during a whitening consultation. He evaluates the type and depth of the staining to determine whether whitening is the right solution.
Common Reasons Whitening Doesn’t Work
Here are the most common reasons patients in Columbia don’t see whitening results.
- Tetracycline Staining: If you took tetracycline antibiotics as a child, or if your mother took them while pregnant with you, you may have intrinsic staining. It appears as gray or brown bands across your teeth. This type of staining is notoriously resistant to whitening.
- Fluorosis: If you consumed too much fluoride as a child, you may have white spots or mottled discoloration on your teeth. Bleaching can’t fix this kind of stain.
- Aging: As you get older, your tooth enamel thins. This lets the yellowish dentin underneath show through. This is an intrinsic change, not a surface stain, so whitening has limited effect.
- Trauma: If you’ve ever injured a tooth, the nerve inside may have died, causing the tooth to appear darker than the surrounding teeth. This type of discoloration doesn’t respond to whitening.
- Restorations: Crowns, veneers, bonding, and fillings don’t bleach. If old restorations have discolored over time, whitening your natural teeth will only make the difference more noticeable.
- Realistic expectations: Some patients expect their teeth to become blindingly white after one whitening treatment. That’s not how it works. Professional whitening can typically lighten teeth by several shades, but it won’t change their fundamental color.
Dr. Trinkner will be honest with you about what whitening can and can’t achieve in your specific case. If whitening isn’t the right answer, he’ll tell you what is.
What Actually Works for Different Types of Stains
If whitening isn’t working for you, here are the options:
- For extrinsic Stains: Professional in-office whitening or custom take-home trays typically work very well. These use higher concentrations of bleaching agents than over-the-counter products, and the results are more dramatic and longer-lasting.
- For Mild Intrinsic Stains: Professional whitening may still help, but it may take longer and require multiple sessions. Dr. Trinkner may recommend a combination of in-office treatment and take-home maintenance.
- For Moderate Intrinsic Stains: Bonding or veneers may be the better choice. These cover the front of the tooth and can mask discoloration that whitening can’t reach.
- For Severe Intrinsic Stains: Porcelain veneers or crowns are usually the best option. They completely cover the tooth’s surface and can create a uniform, natural-looking result regardless of what’s underneath.
- For Discolored Restorations: Replacing the old restoration with a new one that matches your whitened teeth is usually the best approach. Dr. Trinkner will help you plan the sequence so everything matches.
Why Professional Whitening Beats Store-Bought
Even if your stains respond to whitening, professional treatment will outperform drugstore products for several reasons, including:
- Higher Concentration: Professional whitening gels contain higher concentrations of the active ingredients. That means faster results and more dramatic changes.
- Custom Fit: Custom trays made from impressions of your teeth keep the whitening gel in contact with your teeth and prevent it from leaking onto your gums. Store-bought trays are one-size-fits-all, which means they often don’t fit well.
- Professional Supervision: Dr. Trinkner monitors your progress and adjusts the treatment if needed. He also checks for sensitivity and other issues that can arise during whitening. With store-bought products, you’re on your own.
- Safer for Your Enamel: Professional whitening uses formulations that are designed to minimize enamel damage and sensitivity. Some over-the-counter products can be harsh, especially if used incorrectly.
- Longer-lasting Results: Professional whitening results typically last longer than drugstore results, especially with good maintenance.
The Sensitivity Question
Sensitivity is the number one reason patients avoid or stop whitening. It’s also a major reason patients end up disappointed with store-bought products.
The bleaching agents in whitening products penetrate the enamel and reach the dentin, where nerve endings are located. That can cause temporary sensitivity to hot and cold.
The good news is that professional whitening is designed to minimize this. Dr. Trinkner uses desensitizing agents like potassium nitrate and fluoride to reduce discomfort. He also adjusts the concentration and treatment time based on your sensitivity level. If you have sensitive teeth, he’ll plan a gentler treatment approach.
That doesn’t mean you won’t feel anything. Some patients experience mild sensitivity during or after treatment. But it’s usually temporary and manageable. And it’s a small price to pay for a brighter smile.
How to Get Started Today
If you’ve tried whitening and been disappointed, start with a consultation. Dr. Trinkner will examine your teeth, assess your staining, and honestly tell you what whitening can and can’t do for you.
If whitening is the right answer, he’ll create a plan that fits your goals and your sensitivity level. If a different approach makes more sense, he’ll walk you through those options too.
Dr. Trinkner’s practice is at 140 Leisure Lane in Columbia, SC. He proudly serves patients from Columbia, West Columbia, St. Andrews, Seven Oaks, Oak Grove, and throughout the Midlands.
Call your Columbia, SC, dental office at 803-400-8729 or request an appointment online. You’ll get honest answers and a plan that actually works.