A different way to do orthodontics and care for your smile
We open on 19 October 2026
Our commitment, your peace of mind
A new dental clinic concept: no waiting
- The first step
Dental care in the Netherlands can leave you waiting for weeks. We do things differently: your time matters as much as the health of your smile.
- Appointment in two weeks.
- Appointments at your hour. No more endless waiting rooms.
- Continuous attention. Without losing track of your treatment.
Receive a real, quality medical assessment
- Start with confidence
We know that taking the first step towards orthodontic treatment is the hardest part. That's why we make it easy for you: come, meet us, and discover what your smile needs.
- Know your treatment plan From the first consultation. No obligation.
- You will have a clear and detailed diagnosis., explained in simple language, avoiding technical jargon.
- You will have a transparent budget. On your first visit. Assured.
The team that makes the difference
- In good hands
Our specialists know that a healthy mouth is also a beautiful mouth. That's why the cornerstones of every treatment will always be focused on the health and beauty of your smile.
- Orthodontic specialists and European benchmark dental aesthetics.
- Endorsed by institutions a European orthodontic reference.
- We are in continuous training to ensure your case always has the most effective solution.
A new dental clinic concept: no waiting
- The first step
Dental care in the Netherlands can leave you waiting for weeks. We do things differently: your time matters as much as the health of your smile.
- Appointment in under 48 hours. Always.
- Appointments at your hour. No more endless waiting rooms.
- Continuous attention. Without losing track of your treatment.
Receive a real, quality medical assessment
- Start with confidence
We know that taking the first step towards orthodontic treatment is the hardest part. That's why we make it easy for you: come, meet us, and discover what your smile needs.
- Know your treatment plan From the first consultation. No strings attached.
- You will have a clear and detailed diagnosis., explained in simple language, avoiding technical jargon.
- You will have a transparent budget. On your first visit. Assured.
The team that makes the difference
- In good hands
Our specialists know that a healthy mouth is also a beautiful mouth. That's why the cornerstones of every treatment will always be focused on the health and beauty of your smile.
- Orthodontic specialists and European benchmark dental aesthetics.
- Endorsed by institutions a European orthodontic reference.
- We are in continuous training to ensure your case always has the most effective solution.
At Koline Orthodontic Center, we understand that true excellence arises when scientific rigour aligns with your real needs.
- Comfort
A calm environment designed for your well-being.
- Professionalism
Your time is exclusive. Our attention, too.
- Innovation
100% digital diagnosis incorporating the latest advances in orthodontics.
- Comfort
A calm environment designed for your well-being.
- Professionalism
Your time is exclusive. Our attention, too.
- Innovation
100% digital diagnosis incorporating the latest advances in orthodontics.
More than one reason to visit us this September
No waiting lists
We make it easy for you: email us and we will give you your appointment for our opening in October.
Transparent budgets
Your budget is fixed, with flexible payment options and everything detailed so that you can plan with peace of mind. Furthermore, We help you finance your treatments.
3
Absolute clarity
You will know everything you need to at each stage: from care to the next steps. And whenever you have doubts, you can ask us without waiting for your next appointment.
More than one reason to visit us this September
No waiting lists
We make it easy for you: email us and we will give you your appointment for our opening in October.
Transparent budgets
Your budget is fixed, with flexible payment options and everything detailed so that you can plan with peace of mind. Furthermore, We help you finance your treatments.
3
Absolute clarity
You will know everything you need to at each stage: from care to the next steps. And whenever you have doubts, you can ask us without waiting for your next appointment.
Official collaborators
The team
Dr Peri Colino
CEO and Founder of Koline Institute
Doctor of Biomedicine with top honours and a Master's in Orthodontics from the University of Alcalá de Henares, where they received the Extraordinary Award. Director of the Master's in Digital Clinical Orthopaedics and Orthodontics at UCAM and author of four reference books on orthodontics published in Spain. They have given lectures in 11 countries and are part of the most recognised international organisations in the sector.
Dr Peri Colino
Founder CEO of Koline Institute
Dr Miguel González
Orthodontics and Orthopaedics Specialist
Qualified in Dentistry from the European University of Madrid, he has dedicated himself exclusively to orthodontics and dentofacial orthopaedics for over twenty years. An Invisalign Provider since 2009 and an active member of the IAO, where he served as a Representative for Spain. He has received continuous training alongside some of the most influential names in the discipline worldwide, such as Nanda, Carriere, or McFarlane.
Dr Miguel Gonzalez
Orthodontics and Orthopaedics Specialist
Dr Cristina Rizea
CEO and Co-Founder of Dexellence
PhD in Dentistry and Medical Sciences from the UMF Carol Davila in Bucharest, specialist in Prosthodontics. CEO and co-founder of the Dexellence group, she combines clinical practice at Dexellence Clinic with teaching in the Master's degrees in Orthodontics at the University of Extremadura and the Koline Institute. Recognised with nominations such as “Female Leadership in Dentistry” and “40 Under 40 Business Elites in Europe”.
Dr Cristina Rizea
CEO and Co-Founder of Dexellence
Cosmin Zaharia
Co-founder and Commercial Director of Dexellence
Engineer and co-founder of Dexellence, a distributor in Romania of high-end dental equipment (PLANMECA, DÜRR DENTAL, MELAG, ZEISS). As Commercial Director, he has coordinated the procurement, installation and after-sales service of medical equipment since 2014, following a previous career in maintenance engineering and installations. He has technical and commercial training in CAD/CAM and dental radiology provided by leading international brands.
Cosmin Zaharia
Co-founder and Commercial Director of Dexellence
Dr Iraj Zeinali
Orthodontist and Dental Aesthetics Specialist
Doctor of Dentistry from Radboud University Nijmegen and Master's in Orthodontics from UCAM. For over fifteen years, he has combined orthodontics with comprehensive aesthetic treatments, with a special focus on adult patients. His multidisciplinary approach allows for complete transformations that prioritise both health and aesthetics.
Dr Iraj Zeinali
Orthodontist and Dental Aesthetics Specialist
Dr Carlos Colino
Orthodontist and CEO of Focus On Aligner
Exclusive orthodontist with a Master’s degree in Orthopaedics and Digital Clinical Orthodontics from UCAM and a PhD candidate focusing on the Carriere Motion appliance for Class II. CEO and co-founder of Focus On Aligner, he combines clinical practice with teaching in Master’s programmes in Orthodontics in Málaga, Barcelona, Madrid and the Netherlands. Author of the book «MTO – Minimum Time Orthodontics» and co-author of «Orthodontics, Science and Evidence», awarded Best Clinical Case at the 8th International Aligner Congress (2023).
Dr Carlos Colino
Orthodontist and CEO of Focus On Aligner
Dr Isabel Drewling
Orthodontics and Orthopaedics
Specialist in Orthodontics and Dentofacial Orthopaedics and in Clear Aligner Therapy, with a postgraduate degree in Orthognathic Surgery. CEO and co-founder of Focus On Aligner and senior lecturer at the University of Bolton (UK). A member of the American Academy of Clear Aligners and the European Orthodontic Society, she is the author and co-author of several reference books and publications.
Dr Isabel Drewling
Orthodontics and Orthopaedics
Dr Sergio Herrero
Orthodontist and Dento-maxillofacial Orthopaedics Specialist
Doctor of Dental Surgery from the Complutense University of Madrid and Specialist in Orthodontics and Dentomaxillofacial Orthopaedics from Radboud University Nijmegen (The Netherlands). He has over ten years of experience combining general dentistry with orthodontics, with a special focus on the diagnosis and treatment of malocclusions in children, adolescents, and adults. His interdisciplinary training, which includes the management of patients with cleft lip and palate and digital orthodontics protocols with Invisalign® and Spark™, allows him to offer treatments that care for both long-term function and aesthetics.
Dr Sergio Herrero
Orthodontist and Dento-maxillofacial Orthopaedics Specialist
Our goal is clinical excellence. Our greatest achievement is the happiness and peace of mind of each patient.
We'll answer your questions
Who are Koline Institute?
Koline Institute is the institution founded by Dr. Peri Colino, Doctor of Biomedicine and Master in Orthodontics from the University of Alcalá de Henares, recognised for his training trajectory and for directing the Master's in Digital Clinical Orthopaedics and Orthodontics at UCAM, in Murcia, Spain.
Koline Orthodontic Centre is part of this project, with a team of specialists – including Dr Miguel González, with over twenty years dedicated to orthodontics and dentofacial orthopaedics, and Dr Iraj Zeinali, a specialist in orthodontics and dental aesthetics – united under a common approach of clinical excellence and personalised patient care.
What will it offer that is different from the usual clinics in the Netherlands?
Koline Orthodontic Centre was created to solve something that often frustrates patients in the Netherlands: long waiting times.
That's why our proposal focuses on appointments within two weeks, prompt consultations without endless waiting rooms, and continuous care without losing track of your treatment.
Furthermore, from the first visit, the patient receives a treatment plan and a clear, detailed diagnosis, explained without technical jargon, along with a transparent quote.
When is the right time to start orthodontic treatment?
It is advisable to start orthodontic treatment only when it is necessary and feasible.
Furthermore, the timing is crucial. Based on all the information gathered, the orthodontist develops a personalised treatment plan.
The type of braces is adapted to the particular situation of each patient. After the braces are fitted, regular check-ups are scheduled.
Once the treatment is finished, some additional check-ups are carried out to ensure the result obtained is maintained.
- © 2026 Koline Orthodontic Centre.
- Bonnikeplein 18-22, 2201 XA Noordwijk (South Holland), Netherlands.
















