David Winkler DDS

Clinical Director


David was born in Valley Stream, New York and studied Biology and Chemistry at Syracuse University. He then moved to Denmark where he initially trained as a Dental Technician before moving on to become a dentist, qualifying from the Royal Dental College in Copenhagen in 1983. David ran his own practice in Outrup, Denmark for 17 years before moving to Windsor where he has been in practice ever since. David is a self-confessed dental geek. He has a passion for everything dental, always investigating new techniques, products and advances in the industry.

David began implants in 1987 when the first systems came out and has been President of a number of aesthetic academies including the British, Scandinavian (Founding President) and the European Academy and is the immediate past President of the International Federation of Esthetic Dentistry. When David is not in the practice he can be found cooking and travelling to see his children and grandchildren in Denmark. David’s spoken languages: English, Danish and American.


David is GDC registered (73879)

Qualification: Tandlaege Copenhagen, 1983

Leanne Banasko-Lawson     Hygienist/Therapist


Leanne is a dually qualified dental therapist and hygienist after leaving Cardiff in 2001. She has since gone on to work throughout the UK and Channel Islands teaching and perfecting her craft. Leanne will inform you on the best ways to keep your teeth clean and healthy in between your visits. Leanne has a 

passionate belief in educationas a powerful tool and will explain any processes allowing you to understand what is available and to make an educated choice.

Leanne is GDC registered (5939)

Qualifications:  CEB Dip Dent Hygiene Wales, 2001; 
CEB Dip Dental Therapy Wales, 2001

Julie Smither        Hygienist


Julie is a qualified dental hygienist after leaving Guys in 1998. She has been working in dentistry ever since, developing her skills. Julie is passionate about patient care and oral health education. Julie joined the practice in 2018 and apart from cleaning your teeth, she will instruct you on the best way to keep your mouth clean and healthy between visits.

Julie is GDC registered (5525)

Qualification: Dip DHE, Guys (1998)

Cathy Winkler     Practice Manager


Cathy, born and raised in New York City, worked in the advertising and financial worlds until the six year long-distance relationship with David came to a tipping point when he popped the question on a holiday in Ireland. At that point she was already his dental patient and then she became his wife. Cathy moved to Windsor where David was already practicing dentistry and where she became the practice manager at a busy dental practice.

Combining that experience with the knowledge she gained going to the many, many dental conferences with David and, of course, her experiences as a dental patient, she hopes to make your experience at CastleView Dental the best it can be.

Cathy speaks English and American

Cristina Daguerre        Orthodontist


Cristina graduated in Barcelona in 2008 before spending time working as a general dentist in the Lake District. In 2012 she moved back to Barcelona to study a masters in Orthodontics for three years which included travelling to UCLA to learn the most advanced orthodontic techniques. Afterwards she did postgraduates in Lingual Orthodontics (Incognito) and Advanced Orthodontics to learn the FACE/Roth-Williams treatment Philosophy. Cristina then did a postgraduate in aesthetic dentistry at the Autran Institute with support from NYC. 

Cristina has been an Invisalign provider since 2010 and is constantly keeping herself up to date with the most innovative techniques, attending courses and conferences worldwide.   


Cristina is GDC registered (172932)

Qualification: Lic Odont Barcelona, 2008

Cristina speaks Spanish and Catalan.

Agnieszka Fronc (Aggie)    Dentist


Aggie graduated in 2006 in Poland and has worked in the UK since 2010. Providing a full range of general dentistry for adults and children, she is specially interested in minimally invasive aesthetic dentistry and endodontics (root canal treatments). She is also trained and experienced in straightening courses including Cfast and Inman aligner. Aggie is always keeping up-to-date on the latest techniques and increasing her knowlege of dentistry.

Agnieszka is GDC registered (191506)

Qualification: Lek Dent Bialystok, 2006

Aggie speaks English and Polish

Rita Pais         Dentist

Rita graduated in 2002 in Portugal, where she worked until 2017, when she and her family made a life-changing decision to move to the UK. Rita worked at the world-famous Malo Clinic in Portugal. She is experienced in all areas of general dentistry and has a confident yet relaxed approach which is reassuring and calms those who find dental treatment stressful. 

She has particular interests in preventative and minimal intervention dentistry which reduce the need for the more invasive treatments.

Rita is GDC registered (271261)

Qualification: LMD Coimbra 2002

Rita speaks English and Portuguese

Gabriela Kadulova    Lead Nurse


Gabby leads the nursing team at CastleView. After growing up in the Czech Republic, Gabby originally moved to England in 2011 to better her English. Not content with learning a new language, she decided to follow her love for the welfare of people and become a dental nurse. Here at CastleView she flourishes in this passion.

Gabi is GDC registered (249890)

Gabi speaks English and Czech

Teresa Tattoli      Dental Nurse


Teresa has worked as a dental nurse for nearly twenty years in her native Italy before moving to Windsor. Teresa enjoys working in a team and meeting new patients. Her eagerness to expand her role and responsibilities makes her a more than worthy member of the team. She is currently in her adaptation period here in the UK.

Teresa is GDC registered (262419)

Teresa speaks English and Italian

Aaliyah Bhatti         Receptionist

Ali speaks English, Urdu and Punjabi

Tracy Batour          Receptionist

Tracy speaks English and French

Jislaine Santos        Dental Nurse

Originally from São Paulo-Brazil, Jih moved to England to improve her English. After graduating with a degree in  Business Administration in Brazil she started working as receptionist in Oxfordshire in a dental practice. Dental Nursing became a passion and she received her GDC qualification in 2014. She further achieved a dental implant nursing certificate in 2016. Jih recently moved to Windsor from Oxford to join our brilliant team at CastleView Dental. 

Jislaine is GDC registered (250702)

Jih speaks English and Portuguese