Meet the team

At Courtrai House Dental & Implant Clinic our highly skilled, friendly team shares the same single vision: we put you first. Together, we are dedicated to providing you with a first class experience, from the comfort of our reception to the very latest innovations in dental technology. We make sure you have the best possible care from the second you walk through the door.

Find out more about each of our practice team members below.


Rebecca Sadler Dentist

Rebecca Sadler

BDS Hons Newcastle 1996
GDC No. 71849

Dr Rebecca Sadler (nee Ingledew) is a highly experienced general dentist with a special interest in restorative and implant dentistry. She qualified with top of her year with Honours in 1996 from Newcastle and was awarded the BDA prize. Since graduation she has continued to pursue further training and increase her knowledge and skills. Her commitment to the profession is shown by the numerous national and international courses she has attended Cosmetic, Restorative and Implant dentistry throughout the UK, Europe and USA. She is interested in Digital dentistry and the progress made with materials and cutting edge techniques.

Living in Henley with her husband and 2 young children she has worked in the Home counties since 1997. In 2006 she set up the dental practice in Maidenhead which was the first practice acquired by the Portman group. She joined Courtrai House in Henley on Thames in 2009. She has a very loyal following of patients and several of her patients have moved away and still travel to her for their dental care – her furthest patient lives in Sydney Australia! A mother of two she balances home life and a career. She offers flexible hours to accommodate appointments outside work and hours. A keen competitive rower she can often be found on the river and more recently swimming in it, or running alongside it.

Mark Hamburger - Portman Dental Care Team

Dr Mark Hamburger

Dentist - Specialist in Prosthodontics 
BDS University of Witwatersrand. 1984 – BChD. (Hons) University of Pretoria. 1985
GDC No. 59955

Dr Mark Hamburger is a registered Specialist Prosthodontist and an expert in implant dentistry. He qualified with a B.D.S from the University of Witwatersrand in 1984 and was awarded the prestigious B.Ch.D. (Hons) from the University of Pretoria in 1985. He has since built up an enormous experience as a clinician, as a lecturer and as a published author. Regarded as a leader in the field of prosthodontics he has been instrumental in the design and production of computer guided implantology. Following his position as Senior Lecturer at the University of the Witwatersrand Department of Prosthodontics Mark was invited to be the Head of implantology at the dental division of Boots the chemist.

Mark is currently the clinical director of Portman Healthcare and senior lecturer at the Portman Academy. Dr Hamburger has previously lectured at the following institutions: New York University Post Graduate Implantology Program, University of Ann Arbor, Michigan post graduate periodontics program, University of Loiusianna, New Orleans, Bethesda Naval Post Graduate Dentistry Program, Bethesda Hospital, Washington D.C..

Paul Cattell Dentist

Paul Cattell

BDS Manc 1998
GDC No. 74547

Paul Cattell is doubly qualified as both a Dentist and a Dental Technician, and has practiced General Dentistry since 1998. With award-winning talent (he has won prizes in Conservative Dentistry and Dental Technology), Paul enjoys delivering good quality work which makes patients happy. He has a special interest in Restorative Dentistry (crown and bridge work) and always keeps up to date in his field by regular reading and course attendance.

In his spare time, Paul enjoys shooting (clay pigeons, not people).

Karen Darby Dentist

Karen Darby

BDS MJDF Birmingham 2009. Dental Surgeon.
GDC No. 177555

Since qualifying at Birmingham in 2009 Karen has worked in private practices in York and Buckinghamshire. Karen has a keen interest in all aspects of dentistry, including restoring implants.In her spare time she like to keep active.

Karen enjoy yoga and Pilates and completed her first half marathon in Windsor last year.

Melanie Daykin Dentist

Melanie Daykin

BDS Manchester 1991. Dental Surgeon
GDC No. 67135

Melanie has been in practice for over 20 years having worked in both mixed and private environments, covering the full range of clinical procedures. With a relaxed and personable manner, Melanie has a history of excellent relationships with patients, bringing a calm, patient-oriented approach that is reflected in exceptional satisfaction and retention levels.

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Dr Sabina Hameed 

Special Interest in Periodontology 
BDS (Lond) 2000, MFDS RCS (Eng) 2006, Cert. Implants (UCLA) 2008, MS (Cali) 2017, Cert. in Periodontology (Cali), 2017 
GDC No. 78274

Dr Hameed qualified from Guy’s Hospital in London in 2000 and completed her vocational training in Bedfordshire.  She then worked in general practice and community dentistry. She completed Senior House Officer posts in Oral and Maxillofacial Surgery (OMFS), Restorative and Paediatric Dentistry at Guy’s, King’s and St Thomas’s Hospitals and passed the MFDS examination for the Royal College of Surgeons of England.  She has taught Radiology and Emergency Dental care at Kings College London, and has been an Examiner for the Royal College of Surgeons of England (Faculty of Dental Surgery) for 9 years.

In 2007, Dr Hameed undertook a 1 year OMFS Surgical Implant Fellowship at the University of California Los Angeles (UCLA), training in dental implants, sinus and bone augmentation.  Thereafter she provided outpatient Oral Surgery as a Specialty Dr in OMFS at the Royal Berkshire and West Berkshire Hospitals NHS Trust.

In 2014, Dr Hameed returned to Los Angeles to pursuit a 3-year full time Advanced Periodontology and Implant Dentistry training program and Masters of Science in Craniofacial Biology.  In 2017, she was awarded a certificate of specialist training in Advanced Periodontology as well as a Master of Science (MS) from the University of Southern California (USC), Los Angeles.

Dr Hameed is highly experienced in all aspects of surgical dentistry, and her practice is focused to Periodontology, Oral surgery and Implant Dentistry.

Jackie Bridge Hygienist

Jackie Bridge

Dental Hygienist
RDH 1997. Dental Hygienist.
GDC No. 5244

Jackie Bridge qualified from Eastmann in 1997 and has been in private practice since qualifying. Jackie has been with Portman Healthcare at both Maidenhead and Henley since 2007 and particularly enjoys working with nervous patients.

She is married with two daughters and in her spare time enjoys baking and cake decorating.

Louisa Hoy 

Dental Hygienist
Dip Dent Hygiene (Birm) 2008
GDC No. 141473

Sophie Manners

Dental Hygienist
NVQ L3 Dental Nursing & VRQ L3 Dental Nursing City & Guilds 2011, Diploma in Therapy (Lpool) 2016, Dip Dent Hygiene (Lpool) 2016, Dip Dent Hygeine (Lpool) 2016
GDC No. 206332

Negar Head Nurse


Head Nurse

Justyna N Photo

Justnya Niewinska

Dental Nurse 
National Diploma in Dental Nursing NEBDN 2015
GDC no. 259501

Catherine Lundberg

Dental Nurse 
National Diploma in Dental Nursing NEBDN 2014
GDC no. 251355

Karen Lumsden 

Trainee Decontamination Nurse 

Jade Nurse


Head Receptionist 

Farah Treatment Co Ordinator

Farah Hussain

Treatment Co-ordinator 
NVQ L3 Oral Health Care:Dental Nursing & Indp Asses City & Guilds 2009
GDC No. 176371

Sam Receptionist



Becky Receptionist



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Portman Dental Care Awards

Award Logo 2018
Dental Industry Award - Portman Dental Care
Private Dentistry Awards - Portman Dental Care
The Dentistry Awards - Portman Dental Care
BDA Good Practice Award - Portman Dental Care
Elite Practice Award - Portman Dental Care