Orthodontics is a branch of dentistry that deals with re-aligning poorly positioned teeth. Poor alignment of the teeth can lead to an uneven, non-symmetrical smile that can cause you embarrassment, loss of confidence and awkwardness in social situations. It can also mean it is impossible to effectively clean between your crowded or crooked teeth. This can be associated with problems such as decay, gum disease, bad breath and difficulty chewing.

Teeth straightening systems are rapidly evolving and are now more gentle, patient-friendly and unnoticeable than ever before. Extractions are rarely required and treatment requires far less time than for conventional ‘train-track’ braces.  They are available to any suitable patient of any age.


Invisalign straightens your teeth using a series of nearly invisible, removable aligners that are custom-made specifically for you.  Each aligner is changed every two weeks, moving your teeth little by little, week by week, into their correct positions.

Invisalign transforms your smile without disrupting your lifestyle or interactions with others, helping you to achieve the look you always dreamed of with minimal impact on your day-to-day life.

What are the benefits?

Invisalign treatment can truly change your life. At Peartree Clinic Welwyn we have successfully treated many clients who have suffered with the problems described above from their teenage years well into adult life. As a result they have been able to have the beautiful, confident, radiant smile they have always dreamed of. They no longer avoid showing their teeth, nor do they cover their mouth when talking or laughing, or shy away from cameras or social events.

Most people will not even notice you are having any treatment carried out, and there are no restrictions on what you are able to eat and drink. Due to the removable nature of the aligners, you can brush and floss as normal for fresh breath and good hygiene. Invisalign can actually improve your cleaning during treatment, which is not the case for other ‘fixed’ systems that temporarily make hygiene more difficult.

Before you even start, videos showing ‘virtual results’ allow you to see how your teeth are expected to look when the treatment is completed. Treatment times vary according to each case, however in general the time is short and involves fewer visits and shorter appointment times compared to other orthodontic systems.