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  • 367 Maidstone Road, Wigmore, Rainham, Kent, ME8 0HT
Woman with dark hair smiling showing off her bright, white teeth.

07 May 2025

Teeth Whitening Explained: At-Home Kits vs Professional Treatment

Thinking about whitening your teeth? You’re not alone. A brighter smile can make a big difference to how you look and feel – and there are more options than ever. From over-the-counter whitening strips to safe, professional treatment at a dental clinic, it can be hard to know what actually works.

At Toothcare Dental, we offer professional teeth whitening to private patients across Medway – including Gillingham, Chatham, Sittingbourne, Rochester, Stroud and Maidstone. This guide will walk you through the pros and cons of at-home and in-practice whitening, what causes stains in the first place, and how to get the best results safely.

Teeth Whitening Trends in the UK

Teeth whitening has become increasingly popular, especially among younger adults. According to the Oral Health Foundation, around 4 in 10 people under the age of 35 have already had their teeth whitened. Another 48% are planning to do so in the next year. In fact, two-thirds of Brits have actively considered whitening, and a third say they want visibly whiter teeth.

A 2023 cosmetic dentistry survey also found that 45% of UK adults want whiter teeth to improve their smile – making it the most in-demand cosmetic dental treatment, ahead of Invisalign aligners and veneers.

What Causes Teeth to Discolour?

Teeth naturally darken over time – it’s part of the ageing process. But plenty of other things can leave your smile looking dull or stained:

  • Tea, coffee and red wine
  • Smoking or tobacco use
  • Certain foods (like curries and berries)
  • Poor oral hygiene
  • Some medications or medical conditions

Even if you brush well, everyday habits can build up surface stains and discolouration deep in the enamel. That’s where whitening treatment comes in.

At-Home Whitening Kits vs Professional Treatment

There’s no shortage of whitening products you can buy online or in shops – strips, pens, gels, LED lights – and they often promise quick results. But how do they stack up against professional whitening from your dentist?

FeatureAt-Home KitsProfessional Whitening
StrengthLow-concentration bleaching agentsStronger, dentist-approved formulas
SafetyRisk of irritation or uneven resultsCarefully controlled and supervised
EffectivenessCan improve surface stains slightlyMore noticeable and longer-lasting
Custom fitOne-size trays (or none)Custom-moulded trays for better fit
CostCheaper upfrontBetter long-term value
SpeedSlower, with mixed resultsFaster and more predictable outcomes

Professional whitening may cost more initially, but the results are more reliable, safer, and personalised to your smile.

What to Expect from Teeth Whitening at Toothcare Dental

We offer Boutique Whitening at Toothcare Dental – it’s a trusted system used by dentists across the UK. The beauty of it? You get to whiten your teeth at home, but with professional support from start to finish.

There are two ways to go about it:

  • Boutique By Day – A 6% hydrogen peroxide gel that you wear for about an hour each day. It’s ideal if you want quick results and don’t want to wear trays overnight.
  • Boutique By Night – A 10% or 16% carbamide peroxide gel you wear while you sleep. Perfect if you’d rather whiten your teeth without thinking about it during the day.

We’ll help you choose which option fits your lifestyle and explain exactly how it works.

With either option, many patients achieve a noticeably brighter smile – often reaching what’s known as the B1 shade, the lightest natural tooth colour on the dental shade guide.

Here’s how the process usually goes:

1. Consultation – We start by checking your teeth and gums are healthy enough for whitening. We’ll also talk about what kind of results you’re hoping for.

2. Impressions – If you’re suitable for whitening, we take impressions of your teeth to make custom-fit trays that hold the whitening gel in place comfortably and evenly.

3. Treatment – You’ll use your Boutique Whitening trays as directed, depending on the day or night option you choose. We’ll explain everything clearly so you know what to expect.

4. Review – We’ll check in with you to see how things are going and make sure you’re happy with the results.

Common Myths About Teeth Whitening

There’s a lot of misinformation floating around when it comes to teeth whitening. Let’s clear up a few of the most common myths:

  • “It damages your enamel.” Not when it’s done professionally. Boutique Whitening is designed to be safe, gentle, and used under dental supervision.
  • “Whitening results are permanent.” Sadly not. Over time, teeth can stain again – but with good habits and the occasional top-up, your smile can stay bright.
  • “All whitening products work the same.” They don’t. Over-the-counter kits often contain low-strength gel or unregulated ingredients that won’t deliver the same results (and can sometimes do more harm than good).
  • “Whitening hurts.” Some people feel a bit of sensitivity during treatment, but it’s usually short-lived and very manageable – especially with the gels we use.

Getting accurate information from a qualified and regulated dentist is the best way to make a decision that’s safe and effective.

Is Teeth Whitening Safe?

When done properly under the care of a dental professional – yes, absolutely. Whitening systems we provide are regulated, evidence-based and used all over the UK. Some people may feel mild sensitivity during treatment, but this usually fades after a few days.

The same can’t always be said for online or high-street kits, which can contain unregulated or abrasive ingredients that may damage your enamel.

How to Maintain Your Whiter Smile

Once you’ve whitened your teeth, a few simple habits can help keep them looking brighter for longer:

  • Brush twice a day with a whitening or non-abrasive toothpaste
  • Avoid food and drinks that stain (or rinse after having them)
  • Use a straw for darker drinks like cola or iced coffee
  • Don’t smoke – it’s one of the biggest culprits for stains
  • Come in for regular dental check-ups and hygiene visits

You can also top up your whitening results from time to time using your custom trays – we’ll show you how.

Why Choose Toothcare Dental for Teeth Whitening?

You can be sure that you are in the hands of an experienced team of dental professionals here at Toothcare Dental. Just a few reasons why you may want to consider us for your dental treatment.

  • Private dental care in Wigmore, Gillingham with free parking
  • Safe, professional whitening systems – not risky online fads
  • Fully qualified, experienced dental team
  • Custom-made whitening trays for comfort and better results
  • Trusted by patients across Kent

How Much Does Teeth Whitening Cost?

Prices at Toothcare Dental start from £589.00, and we offer 0% finance plans to help you spread the cost. Everything will be explained during your consultation – no hidden fees, no pressure. Learn more about private dental fees.

Want to Learn More?

We’re always happy to chat about whitening or any other treatment. Whether you just want to freshen up your smile or go a few shades brighter, we’ll help you do it safely, under expert supervision, and with results that last. Call us on 01634 232 204 or visit our teeth whitening page to find out more.

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  • 367 Maidstone Road, Wigmore, Rainham, Kent, ME8 0HT