Archway Dental Group
Teeth Whitening: How Does It Work?
Teeth whitening involves applying a specialised gel to the teeth to break down stains and discolouration, leaving your smile visibly brighter. At Archway Dental Group, we use professional-grade whitening systems that penetrate the enamel safely and effectively, targeting stains caused by food, beverages, smoking, or ageing. Our team ensures a customised treatment plan to maximise results while protecting the health of your teeth and gums.
Teeth Whitening Methods
At Archway Dental Group, we offer at-home whitening kits: Custom-fitted trays and professional whitening gel allow you to achieve gradual results from the comfort of your home.
This option is safe and effective, delivering long-lasting brightness tailored to your preferences.
Teeth Whitening: Costs
The cost of teeth whitening depends on the level of whitening required. At Archway Dental Group, we provide transparent pricing and discuss all options during your consultation. With at-home kits available, we can tailor the procedure to fit your budget and needs.


Dr. Mehy Lo Presti, trained at the University of Madrid and specializing in Surgery, Endodontics, and Periodontics, currently focuses on aesthetic dentistry, pursuing an MSc at King’s College London. Known for his calm and reassuring approach, he specializes in treating nervous patients. Fluent in English, Spanish, Italian, and Arabic, Dr. Lo Presti provides personalized care. Outside of work, he enjoys yoga, sports, art collecting, and traveling.









Teeth Whitening: Does It Hurt?
Teeth whitening is generally pain-free, although some patients may experience mild sensitivity during or after the procedure. At Archway Dental Group, we use professional-grade whitening systems and techniques designed to minimise discomfort. If you have sensitive teeth, our team can recommend options to ensure your experience is as comfortable as possible.
How long does teeth whitening last?
The results of professional teeth whitening can last from six months to two years, depending on your lifestyle and oral hygiene habits. At Archway Dental Group, we provide guidance on maintaining your brighter smile through regular care and avoiding habits that cause staining, such as smoking or consuming dark-coloured beverages.








Teeth Whitening Before and After
Professional teeth whitening can dramatically enhance the appearance of your smile, making it brighter and more youthful. At Archway Dental Group, we personalise each treatment to ensure natural-looking results that complement your features. You’ll leave our clinic with a whiter smile that boosts your confidence in both personal and professional settings.
Teeth whitening contraindications
While teeth whitening is safe for most patients, it may not be suitable for everyone. Contraindications include untreated cavities, gum disease, or teeth with exposed roots. At Archway Dental Group, we conduct a thorough assessment to ensure the treatment is appropriate for you. Our priority is protecting your oral health while helping you achieve your whitening goals.
- From Central London
Take the A1 heading north. Continue straight on Holloway Road and turn left onto St John’s Way. The practice is located at 34 St John’s Way.
- From North London
Follow the A1 southbound towards Archway. Turn right onto St John’s Way at the Archway roundabout. The practice is a short distance on your right.
- Parking
Follow the A1 southbound towards Archway. Turn right onto St John’s Way at the Archway roundabout. The practice is a short distance on your right.
- From Central London
Take the Northern Line (High Barnet branch) northbound and get off at Archway Station. Exit the station and walk approximately 5 minutes along St John’s Way to reach the practice.
- From North London
Take the Northern Line southbound and alight at Archway Station. Walk straight along St John’s Way, and you’ll arrive in just a few minutes.
- From Camden Town
Take bus 134 or 390 towards Archway. Get off at the Archway Station stop, then walk 5 minutes along St John’s Way.
- From Finsbury Park
Take bus 263 towards Archway and get off at the Archway Station stop. The practice is a short walk from there.
- From King’s Cross Station
Take the Northern Line to Archway Underground Station. Exit the station and walk approximately 5 minutes along St John’s Way to reach the practice.
- From Highgate
Take the Northern Line southbound to Archway. Walk along St John’s Way for a quick 5-minute journey to the practice.
- Highgate: Follow the A1 southbound for approximately 10 minutes. At Archway roundabout, turn right onto St John’s Way.
- Hampstead: Take Fitzjohn’s Avenue to Highgate Road, then join the A1 towards Archway. Turn left onto St John’s Way.
- Finsbury Park: Head north on Holloway Road (A1) towards Archway. Turn left at the roundabout onto St John’s Way.
- Islington: Take the A1 directly towards Archway. Pass through Holloway and turn left at St John’s Way.
- Crouch End: Follow Crouch End Hill to the A1, turning left towards Archway. Turn right at the roundabout onto St John’s Way.
- Muswell Hill: Drive south on Muswell Hill Road, then turn left onto Archway Road (A1). At the Archway roundabout, take the fourth exit onto St John’s Way. The practice is on the right.
Teeth whitening at home
Teeth whitening at home offers a convenient way to brighten your smile with professional-grade results. At Archway Dental Group, we provide customised whitening kits that include trays specifically designed to fit your teeth and a powerful yet safe whitening gel. These kits are tailored to your needs, ensuring consistent and effective whitening results from the comfort of your own home.
Our at-home whitening system allows you to achieve gradual brightness over a few weeks, giving you control over the process. With detailed instructions and support from our team, you can enjoy a whiter, more confident smile without the need for multiple clinic visits. This option is ideal for busy schedules while maintaining the same professional standards as in-practice treatments.

EXCELLENT Based on 188 reviews FENDA injaiTrustindex verifies that the original source of the review is Google. Very gentle, considerate and helpful AngelinaTrustindex verifies that the original source of the review is Google. Had a very welcoming and friendly new patient visit, checkup and hygienist. I'm quite a nervous patient and I felt at ease. Really friendly staff and clean environment. The cute dog is a bonus when you visit! sara murgiaTrustindex verifies that the original source of the review is Google. Went today to see the hygienist, Nadia and she was extremely nice, professional and very shooting as a person. Will recommend to everyone. Also the receptionist and her dog were amazing! Una PricaTrustindex verifies that the original source of the review is Google. Dr Olivia was amazing and did a great job with my wisdom tooth surgery. I definitely recommend this dental practice as they are extremely professional, helpful and kind. Wouter PoppinkTrustindex verifies that the original source of the review is Google. Great service allround. Joanne Boland is so bright! A skilled, funny and painless dentist. Amazing. Johnny WordsworthTrustindex verifies that the original source of the review is Google. Booked in ASAP and great dentist appointment, super actionable advice on what to do next in terms of keeping my gums and teeth healthy. Stephen NolanTrustindex verifies that the original source of the review is Google. I Visited the surgery today for a hygiene clean I could not be more happy with the service I received from Nadia (hygienist) she is very friendly ,professional and passionate about the care of her patients i could not be more happy with this service, both Nadia and Linda (the receptionist) are both a credit to this dentist surgery.i highly recommend this practice ,thanks Julie MinnsTrustindex verifies that the original source of the review is Google. Needed an emergency appointment, telephoned and booked in for same day. All staff were welcoming and kind. Had x rays, examination, guidance and antibiotics dispensed during visit. Such super efficient service from start to finish. Thank you. Therapy dog on site was a joy. Sylvia NakkaziTrustindex verifies that the original source of the review is Google. I was surprised that the practice was able to book me appointment on the same day. I was really nervous about the wisdom tooth extraction but the team made me feel at ease straight away. The extraction went well and I was extremely happy to get rid of what had cause me sleepless night. Excellent customer service.Verified by TrustindexTrustindex verified badge is the Universal Symbol of Trust. Only the greatest companies can get the verified badge who has a review score above 4.5, based on customer reviews over the past 12 months. Read more