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Tooth Whitening

We recommend home whitening systems rather than other more expensive 'in-surgery' options advertised elsewhere. Home bleaching is scientifically backed up to be the best way to effectively whiten teeth ... and it is also much cheaper!

The process

Bleaching is undertaken using 10% carbamide peroxide in a mouthguard worn overnight over a period of around 3 weeks. Existing crowns, bridges, veneers and white fillings will not lighten with bleaching and this can lead to an obvious contrast between the fillings and the lightened natural teeth.

This might mean that they need to be replaced but we will discuss the issues with you during your whitening consultation.

Bleaching usually lasts for up to three years and can be topped up quite quickly.

Why don't we use other 'power whitening' systems?

Members of our Castleton Membership plan get 10% off whitening

We don't recommend other whitening methods you might see elsewhere such as power bleaching, plasma light or laser light bleaching. All of these systems require the patient to go home afterwards with a home bleaching kit in any event and it is this time spent at home that actually bleaches the teeth.

Our choice of home bleaching is backed up by evidence based dentistry including various journal articles, textbook by many renowned authors such as Martin Kelleher.

Opalescence Tooth Whitening

We have chosen Opalescence from Ultradent as our home bleaching kit of choice.


Opalescence Take Home Whitening Gels are only available from your dentist, who will supervise your treatment from initial consultation through completion. The sticky, viscous gel won’t migrate to gums, and most formulations include Potassium Fluoride (PF), which helps to improve oral health by strengthening enamel, decreasing sensitivity, and offering increased cavity prevention.


Powerful, prescription-strength Opalescence Take Home Whitening Gels are available with 10%, 10%PF, 15%PF, 20%PF, and 35%PF carbamide peroxide. Opalescence Take Home Whitening Gels can provide results after just one night, though expect to see results in about a week.


Opalescence Take Home Whitening Gels are delivered via customized bleaching tray. Your dentist will create this tray from an alginate impression of your mouth; this customization is part of why Opalescence Take Home Whitening Gels are so effective. You can further customize your Opalescence Take Home Whitening Gel experience by choosing from the five formulations and three flavors (mint, melon and regular).



Opening Hours:

Monday to Friday 8.45am - 5.30pm
Friday morning early appointments 7.45am
Evenings available by prior arrangement or an individual basis
 New Patient Questionnaire (pdf)     |     Smile Analysis (pdf)

© Castleton Dental Practice 11 Castle Street, Farnham, Surrey, GU9 7JA
tel: 01252 715576        fax: 01252 718 911        email: info@castletondental.co.uk

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Website last updated 12 July 2017     |     Patient Feedback Form


Calling all Students in Farnham

  • When was your last dental examination?
  • Is your own dentist too far away?
  • Can't get registered with a local NHS dentist?

Check out Castleton Dental

Great Location in Farnham

We are three minutes walk from the campus at the end of Long Garden Walk past the Hop Blossom pub.

Great Track

We have seen and treated lots of UCA students over the years.

Lower Cost than you would imagine

New patient examination just £42.50 ... book now

Your next steps:   

  1. Pick up the phone and call us on 01252 715576
  2. Register as a new patient (cheaper than an emergency only appointment…and not a lot of people know that!)
  3. Sign up to Castleton Membership (for benefits like inclusive examinations, inclusive hygienist visits and 10% off all treatments including cosmetic stuff) ... more details

Please note that we are not affiliated with or endorsed by UCA Farnham.