Nearly invisible teeth treatment with clear aligners — We design your perfect smile


«Speedy service and very good scientific based work»

Dr. Alexander Ilbag, Salierpraxis, Düsseldorf

«Located in the WDR Arcaden in the center of the city of Cologne we have a lot of clients from the media. The always stable consistency of results is what we love mostly about K Line. Our patients can be sure that they are getting the best treatment option that is possible.»

Dr. Nora Heuser & Dr. Mathias P. Sommer, Praxis WDR Arkaden, Cologne

«I am treating my patients with Aligners since more than 14 years now. K Line is probably the best scientific based Company which comes with a very affordable price.»

Dr. Pouran Vali-Pursche, Kieferorthopädie Meerbusch

«Our doctors now have a system where they can lay their trust in treating cases with Clear Aligners which was missing till now. I thank the team of K Line for their support which has helped us make K Clear the No.1 Clear Aligner in India.»

Dr. Swapnil Gupta, India

«I have treated patients with clear aligners for many years now and K-Line is the fastest and most effective system that I have used! I only met the K-Line team earlier this year but am already in the process of over 50 cases! The support provided by Dr. Kandil and the rest of the team is the best I have received from any aspect of dentistry.»

David Hardiman, British Dental Center, UAE

«What we like most about K Line is the dental support and the service. The exchange of the information is very good. The results are always as expected.»

Julia Grote, Praxis Zahnärzte am Uhlenhorst, Mülheim an der Ruhr, Germany

«After using clear aligners alongside other orthodontic systems for many years now I have found K Line to be the most effective, scientifically based system available. The team are knowledgeable and always very helpful. K Line has proved to be a very reliable company for myself and my patients.»

Dr. Robert Hughes, Dental Excellence Liverpool, UK

«It is not just about the quality of the software or the material, the reciprocity of the K Line Team sets them apart.»

Prof. Dr. Gurkeerat Singh, D-32 The Dental Centre, India

How does it work?

Teeth straightening has never been that easy:

  1. Snap the aligner over your teeth.
  2. Teeth move according to previously planned tooth movement by our specialists on 3D designing softwares.
  3. After nearly each week, the aligner is changed to the following one in the correct sequence.

Voila! You get the straight teeth you’ve always wanted!

German Televison Channel RTL is showing a treatment from K Line Europe.

Klick on «play» to watch the video.


Before and After Photos of real Cases

Slide the bar right and left to see results


What is K Line?

K Line Clear Aligners are the most modern and precisely designed clear splints that move teeth gradually. K Line aligners are the perfect substitute for braces in most cases that require teeth straightening.

Which advantages offers K Line?

Your K Line treatment will be started with a set of nearly invisible and removable aligners. They are very comfortable and besides of the perfect result, the biggest advantage is that you can take the aligner out while you’re eating or brushing your teeth.

What is the first step?

Write us a message with our contactform and you will recieve the address from a K Line-User near you.

Can I speak normally with it?

The aligners are individually fitted to your teeth. After a short period of time there will not be any disturbance while talking anymore.

How should I clean my aligner?

You should clean your aligners twice a day, in the morning and in the evening with a bit of toothpaste and your regular toothbrush.

Does the treatment hurt?

When you change from one aligner to the next it could be possible that there is a light feeling of pressure for a few minutes, but it will disappear after a short period of time.

Where can I get K Line?

You can get our teeth-straightening-system just from certified orthodontists and dentists. If you would like to know if there is a K Line User in your city send us a message and you will recieve an address from the next K Line User.

For how long do I have to wear it?

Generally you can say, the oftener you wear it the faster the treatment will be finished. For the best possible result you should wear it  whole day and night. Take it out just if you eat or brush your teeth.

Contact Us

K Line Europe GmbH
Lilienthalstraße 70
40474 Düsseldorf
Tel 1: +49 (0)21193896976
Tel 2: +49 (0)21165859944
Website :
email :

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News & Events

K Clear high quality before-after models

banner new models

K Line Europe now offers a new type of high quality before-after models, produced by advanced printing technology.

The models are available upon request.

Meet K Line Europe at the Scandinavian Dental Fair!


From 27th – 28th April 2017 K Line Europe will be among the exhibitors of the 50th Scandinavian Dental Fair in Copenhagen.

Meet us at our booth in C2 – 029C .

IDS 2017

IDS banner NEU

We thank all the visitors of our booth at the International Dental Show this year.

Not only the K Line Clear Aligners lecture was a highlight of this exciting week.

We were also glad that our international distributors’ meet up was a great success and we hope to

see you again at the IDS next year!

Great week for K Line Europe at the biggest dental conference in the MENASA region!


Not only did K Line have the most unique booth design at the AEEDC Dubai conference which took place in Dubai from 07.-09. February.

In this very successful week K Line Europe enlarged its international network and gained many new contacts.

We are looking forward to a fruitful cooperation with our new partners in the future!

First K Clear certification course held in Malta!

K Clear course

The first K Clear Aligner certification course for the beautiful island Malta was held by Dr. Sherif Kandil on 27.01.2017.

The participants were informed about the latest developments in the field of Clear Aligner treatment.

K Clear Certification Course in Moscow


Dr. Sherif Kandil, CEO and founder of K Line Europe held the certification course for K Clear Aligner in Moscow.

All K Line dentists are certified partners.

DGAO Congress 2016 - Success for K Line Europe


The DGAO Orthodontics Congress which took place from 18th — 19th November in Cologne was a big success for K Line Europe.

The K Line booth attracted many visitors and also the lecture given by Dr. Sherif Kandil on Clear Aligners attracted more than 500 participants.

K Veneers Online Course - SIGN UP NOW


This Online course offered by K Line Europe will teach you the most interesting facts and procedures of working with K Veneers. Dental Veneers are state of the art technique nowadays and with this online course you will have the unique possibility to obtain the latest knowledge in this topic. The course will be held by expert Dr. Andy Gabra.

SIGN UP for the course by sending an email to