Crowded teeth is a condition where you do not have enough room for your teeth to fit normally. This can cause plaque or tartar and other harmful bacteria to build up as it is harder for you to brush and floss well.
Gaps between teeth is when there is extra space between two or more of your teeth. This can cause pockets between your teeth and gums and can cause food to get stuck making them tender and sore. This might also lead to gum disease.
An Open bite is when your upper and lower teeth don't touch when you close your mouth. An open bite can make it hard for you to chew or difficult to bite even the most common of food like apples.
An underbite is when you close your mouth and your lower front teeth are in front of your upper teeth. In many cases, this is actually a problem with your lower jaw being too far forward. An underbite can make it hard to chew properly and speak clearly, and it might cause your teeth to wear down more quickly.
An overbite is when your upper front teeth overlap with your lower front teeth. Most people have at least a little overbite. When your overbite is too large, your doctor might tell you you have a deep bite. This can cause problems, from your teeth wearing down to pain in your jaw.
A crossbite is when you close your mouth and yet some of your upper teeth are sitting inside your lower teeth rather than on the outside. A crossbite can make your teeth wear down or chip. It can also make your gums start to recede or make little notches above your gum line. This kind of damage can lead to painful gum problems or even bone loss.
The clear, comfortable way to a straighter smile.
Invisalign is the world’s leading clear aligner system and for good reason. Using a series of virtually invisible, custom-made aligners, it gently guides your teeth into their ideal position without the brackets, wires or lifestyle restrictions of traditional fixed braces. For many of our patients, it is the treatment that finally makes a straighter smile feel possible.
Each set of aligners is crafted from smooth, BPA-free plastic, trimmed precisely to your gum line for a discreet and comfortable fit. You wear them for 20 to 22 hours a day and simply swap to the next set in your sequence every one to two weeks. Because they are completely removable, eating, drinking, brushing and flossing remain entirely unaffected; there is nothing to adjust, nothing to tighten and no foods to avoid.
From the first consultation to the final result, your treatment is guided by Invisalign’s® proprietary ClinCheck® technology, which uses a precise 3D digital simulation allowing us to plan every stage of your tooth movement in advance. Before your aligners are even made, you can see exactly where your smile is headed.
Fully digital and guided. No need for moulds.
3D scans and digital tracking to view your progress every step of the journey.
Award-winning care.
In-person consultation with a skilled professional.
Combine with cosmetic dentistry and teeth Whitening for best results.
Thousands of happy patients.
Bespoke treatment tailored to you.
Sustainable, thoughtful practice, with retainer recycling.
See results in 3 months.
Why wait? Interest free finance available.
Your initial consultation with Dr Kishan Lakhani includes a full iTero® 3D digital scan. The £25 deposit is fully refundable against the cost of your treatment should you decide to proceed.

We believe in complete transparency when it comes to fees. All Invisalign® treatment packages at Berkhamsted Dental are fully inclusive, there are no hidden extras, no surprise charges and no add-ons. Everything you need, from your first scan to your final retainers, is included in your package price.
Learn MoreInvisalign® is suitable for a wide range of patients, from those with mild aesthetic concerns to those with more complex alignment or bite issues. The best way to find out if it is right for you is to book a consultation with Dr Kishan Lakhani, who will assess your teeth, discuss your goals and recommend the most appropriate treatment plan.
Yes. Invisalign® offers a dedicated treatment option for younger patients, including Invisalign® Teen. As long as the adult teeth have come through sufficiently, Invisalign can be an excellent choice. We will assess suitability at your initial consultation with Dr Kish.
Your consultation with Dr Kish is a relaxed, unhurried conversation about your smile goals and whether Invisalign® is the right treatment for you. During the appointment, Dr Kish will carry out a clinical examination and take a full 3D digital scan of your teeth using our iTero scanner, with no moulds or impressions required. From this scan, we can show you a ClinCheck® simulation, a digital preview of how your teeth are expected to move and what your smile could look like at the end of treatment. There is no obligation to proceed. The consultation is available for a £25 refundable deposit.
Treatment length varies depending on the complexity of your case and the package you choose. Invisalign® Lite typically takes between three and six months; Invisalign Moderate between six and twelve months; and Invisalign® Comprehensive between twelve and eighteen months on average, though more complex cases may take longer. Dr Kish will give you a realistic timeframe during your consultation.
Attachments are small tooth-coloured dots of composite resin that are bonded to specific teeth during treatment. They act as anchor points, giving the aligners something to push against in order to achieve more precise or complex tooth movements. Not every patient needs attachments. If they are required for your treatment plan, Dr. Kish will discuss this with you at the planning stage. They are discreet, blend in with the natural colour of your teeth and are removed painlessly at the end of treatment.
Most patients adapt very quickly, often within a day or two. You may notice a very slight change in the way certain sounds feel initially, but this typically resolves itself as you become accustomed to wearing the aligners.
For optimal results, aligners should be worn for 20 to 22 hours per day. They should only be removed for eating, drinking (anything other than plain water), brushing and flossing.
Yes, one of the most significant advantages of Invisalign® over fixed braces is that your aligners are fully removable. Simply take them out to eat and drink, clean your teeth and reinsert them afterwards. There are no food restrictions whatsoever.
Invisalign® aligners are made from a virtually invisible SmartTrack material that sits closely against the teeth. The vast majority of patients find that friends, family and colleagues either do not notice at all or only notice when told.
Invisalign® is generally much more comfortable than fixed braces. When you move to a new set of aligners, you may experience mild pressure or sensitivity for the first day or two as your teeth begin to shift; this is entirely normal and is a sign that the treatment is working. Most patients describe it as minor and entirely manageable.
Rinse your aligners in lukewarm water every time you remove them and clean them gently with a soft toothbrush. Avoid hot water, as this can warp the plastic. Always brush and floss before reinserting them and store them in their case whenever they are out of your mouth.
At the end of your treatment, we will provide you with Essix retainers, discreet, removable retainers worn at night, to maintain your results long-term. Retention is an important and long-lasting part of any orthodontic outcome, and it is included in all Berkhamsted Dental Invisalign® packages.
Previous orthodontic treatment or existing restorations such as crowns, veneers or bridges do not necessarily rule out Invisalign®. Dr Kish will carry out a thorough clinical assessment to determine the best approach for your smile. In many cases, Invisalign® can be used successfully alongside existing dental work.
Now is the perfect time to start. Whether you have a wedding, a milestone birthday or a graduation on the horizon, Invisalign® works with your timeline. Begin your treatment today and arrive at your occasion with the smile you have always wanted.
After completing Invisalign® treatment, wearing a retainer is essential to keep your teeth in their new position. The two main options are Essix retainers (clear, removable trays similar to your aligners) and Vivera retainers (Invisalign®’s own premium retainer, made from a more durable proprietary material).
At Berkhamsted Dental Practice, every completed Invisalign® treatment includes a free set of Essix retainers as standard. Dr Kish will advise on the best long-term retention approach at your end-of-treatment appointment.
Both are clear, removable retainers that fit over your teeth. Essix retainers are the standard option, made from a clear thermoplastic material.
Vivera retainers are manufactured by Invisalign® using the same proprietary SmartTrack® material as your aligners, making them approximately 30% more durable.
Vivera retainers are supplied in sets of four pairs, giving you built-in replacements. Both are effective at maintaining your results, and Dr Kish will help you choose the right option for your lifestyle.
A free set of Essix retainers is included with every Invisalign® treatment package at Berkhamsted Dental Practice. Vivera retainers are available as a premium upgrade. For specific prices for you, ask the team at your next visit.
In the months immediately following treatment, most patients wear their retainer full-time (20 to 22 hours a day), removing it only to eat and clean their teeth. After this initial period, Dr Kish will typically recommend night-time wear only.
In most cases, some level of retainer wear is advised indefinitely, as teeth can gradually drift if a retainer is not used consistently over the long term.
If an aligner is lost or damaged, contact us as soon as possible. Depending on where you are in your treatment, we will advise whether to move on to the next aligner in the sequence or whether a replacement needs to be ordered.
Replacements can be arranged but may incur an additional charge. To avoid this, always store your aligners in their protective case when they are out of your mouth.
Yes. It is important to brush and floss before reinserting your aligners. If food particles or sugary residue remain in contact with your teeth while aligners are in place, it can cause staining to both the aligners and your teeth and significantly increase the risk of tooth decay.
Developing a clean-before-you-reinsert habit early in treatment makes a real difference to both your results and your oral health.
No. Chewing gum will stick to your aligners and may distort their shape, affecting how well they fit and how effectively they move your teeth. Always remove your aligners before chewing gum.
Yes. Smoking whilst wearing aligners will cause them to yellow and discolour noticeably and the staining can be difficult to remove. We recommend removing your aligners before smoking and cleaning your teeth before reinserting them. Bear in mind that discoloured aligners are clearly visible when you smile, which rather defeats the purpose of a discreet treatment.
Invisalign® was founded in 1997 by two Stanford University graduates, Zia Chishti and Kelsey Wirth, and the treatment became commercially available in 1999. Since then, it has been used to treat over 17 million patients worldwide. The technology has advanced significantly, with innovations including SmartTrack® aligner material, ClinCheck® 3D treatment planning software and the iTero® digital scanner, making treatment more precise, comfortable and predictable than ever.
Beyond the cosmetic result of a straighter smile, correcting the alignment of your teeth carries significant long-term health benefits. Straighter teeth are considerably easier to clean, reducing the build-up of plaque in hard-to-reach areas and lowering your risk of tooth decay and gum disease.
Both conditions, if left untreated, can progress to tooth loss over time, with the associated cost and complexity of implants, bridges or dentures.
Properly aligned teeth also distribute bite forces more evenly, reducing strain on individual teeth, protecting enamel from uneven wear and lowering the likelihood of chipping, cracking or jaw-related discomfort.
In short, investing in your alignment today can meaningfully reduce the cost and complexity of your dental care in the years ahead, helping you hold on to your natural teeth for longer and enjoy better oral health throughout your life.
Our packages start from £2,900 for Invisalign® Lite, from £3,400 for Invisalign® Moderate and from £3,900 for Invisalign® Comprehensive.
All packages are fully inclusive, with no hidden extras. Your initial consultation, including a full 3D scan, is available with a £25 refundable deposit.
Yes. We offer 0% interest-free finance across all Invisalign® treatment packages, allowing you to spread the cost over a period of comfortable monthly payments with no additional charge. Please ask us for details at your consultation.
Whether you’re booking your first appointment, have a question about our treatments, or simply want advice on your dental care — our friendly team is here to help.