Meet the team

At Pittville Lawn 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.


James Critchley

Dr James Critchley

Dentist with a Special Interest in Dental Implants
BDS (Wales) 2000
GDC No. 77511

Dr James Critchley is an enormously experienced restorative dentist with over 21 years in practice in and around Cheltenham providing family, implant, and cosmetic dentistry. James’ passion for dentistry started at an early age following his father who was one of the UK’s leading implant dentists. Such was James’ interest in dental implants that he started his post-graduate training before he had even completed his dental degree, spending time at the home of dental implants in Gothenberg Sweden. This was followed by time in America being mentored by some of the world's top cosmetic dentists. To date, James has completed 1600 cases.

His post-graduate training is still focused on spending time directly with the worlds leading dentists in the fields of implant dentistry and cosmetic dentistry. This has meant James has built a particular reputation for his skill in restorative and cosmetic dentistry, including the all-on-four technique, straightening teeth using invisible orthodontic aligners, and dental implants.

When James is not at the practice he spends most of his time with his family. His interests are anything outdoors from Rugby to skiing.

Rippon Sanagera

Rippon Sanagera

Specialist Orthodontist

Rippon qualified from Guy’s, King’s and St Thomas’ in London in 2003. She had an interest in surgery and this led to her spending 9 years training in Oral and Maxillofacial Surgery. She spent 5 years as a Specialty Doctor in Oral and Maxillofacial Surgery in various hospitals in the South East including Royal London Hospital, where she was also a Honorary Clinical lecturer and involved in undergraduate dental training. In this time, she also obtained her Membership of the Faculty of Dental Surgery at the Royal College of Surgeons of England. In 2012 at a London Conference, Rippon was awarded the Associate Fellow’s Prize by the British Association of Oral & Maxillofacial Surgeons, for the best presentation of a clinical study, she had conducted in third molar surgery at the Royal London Hospital. She has been an examiner for the General Dental Council/Royal College of Surgeons London for 9 years, examining overseas dentists and continues to examine.

Through Oral and Maxillofacial Surgery and Rippon’s interest in jaw surgery, this led her path to specialising in Orthodontics. She undertook higher specialist training in Orthodontics at Birmingham Dental Hospital and Worcestershire Royal Hospital. As part of her training, she also completed a Masters in Research, looking at the self-esteem and quality of life in patients undergoing jaw surgery. She successfully completed training and was awarded a Membership in Orthodontics at the Royal College of Surgeons Edinburgh and is recognised as a Specialist in Orthodontics with the General Dental Council.

Rippon works in both NHS and Private practice in Gloucestershire and the Midlands. After qualifying, she continued to work as an Orthodontist at Birmingham Dental Hospital, where she dealt with an array of complex cases including surgical. She has a keen interest in aesthetic Orthodontics including Invisalign, treating mild to complex cases and experienced in Invisalign Teen. She loves keeping up to date with the constant changes and advancement in Orthodontics using an array of digital systems, designed to make life easier for patients and making that new smile easily accessible.

With her experience in Oral and Maxillofacial Surgery, Rippon has completed training in Advanced Facial Aesthetics. Specialist Orthodontists are taught a higher level of training in facial proportions and facial balance and Rippon enjoys enhancing natural beauty and facial rejuvenation.

In her spare time, Rippon is kept busy with her young dog and enjoys exploring the Cotswolds with him, one of his favourite spots being Leckhampton Hill.

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Malcolm Berry

Specialist Prosthodontist
GDC No. 46474

Malcolm is a specialist prosthodontist at Pittville Lawn and will accept referrals for the full range of prosthodontic problems both fixed and removable. Including worn dentition, TMJ and occlusal problems, fixed and removable implant retained prosthesis and complex restorative treatment.

Malcolm is a very experienced clinician having been consultant in restorative dentistry at Oxfordshire Primary Care, Specialist prosthodontist in the Oxford University Hospital head and neck cancer centre, and 50 years in general practice.

Malcolm will be working at Pittville Lawn for two days a week alongside his associate role as clinical advisor and expert witness for the General Dental Council. Malcolm will be more than happy to discuss any cases prior to possible referral and also provide treatment planning for cases you wish to treat in your practice.

Frederico Ferreira

Dr Frederico Ferreira

Practice limited to Endodontics
LMD (Lisbon) 2005, MSc Endodontics (London)
GDC no. 117443

Frederico comes from Portugal. After graduating from Porto, he has held a post at the University as a clinical assistant, worked in private practice and at a private Hospital.

Frederico has completed his MSc in Endodontics, with Distinction, at the prestigious King’s College London.

Currently, Frederico has a limited practice to Endodontics and collaborates as a clinical tutor at the Delta Dental Academy in Bristol.

He is also the UK Key Opinion Leader, for the award-winning German microscope brand CJOPTIK and Eighteeth Medical. Frederico is a member of the British Endodontic Society (BES), the European Society of Endodontology (ESE), the British Academy of Microscope Dentistry (BAMD) and the Academy of Microscope Enhanced Dentistry (AMED).

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Lakshmi Bai Sutrave

Special interest Periodontist

Oonagh Mc Swiney

Dr Oonagh McSwiney

BDS (Bristol 2017) MJDF PGDip
GDC no. 271150

Dr Oonagh McSwiney graduated from the University of Bristol in 2017 and undertook her elective period treating refugees on the Myanmar border.

Whilst completing her vocational training in London, Oonagh obtained her MJDF qualification from the Royal College of Surgeons and won the prize for ‘Best Case Presentation’ – a complex restorative case involving several disciplines of dentistry. In 2018 she was shortlisted as a finalist at the ‘Future of Dentistry Awards’.

Oonagh is dedicated to post graduate training. She is a fully certified Inman Aligner and Invisalign provider, allowing the execution of orthodontic treatment. Oonagh is currently entering the final months of her Master’s degree, having achieved Distinction in all units. She has been invited to present her research at an International Conference in the Spring of 2020.

After qualifying Oonagh immersed herself in the field of Facial Aesthetics, completing training at the Royal College of General Practitioners. She has a keen sensibility for facial harmonisation and is passionate about providing undetected injectables, with your needs in mind.

Having grown up in Cheltenham, in her free time Oonagh enjoys exploring all that the local area has to offer.

Daria Ionescu

Dr Daria Ionescu

BDS (Iasi) 2000, PG Cert Rest Dent, PG Cert Endo, Certified Invisalign Provider
GDC NO. 110060

Daria is a friendly and enthusiastic dentist with over 20 years of experience of general dentistry and has an interest in crown and bridge work, Invisalign and composite bonding.

A Romanian native, she has been providing quality dental care in Cheltenham since 2008.

Being passionate about personal and professional development, Daria completed Postgraduate training at Certificate level in Restorative Dentistry and in Endodontics.

Daria loves being able to help patients with their smiles and overcome their fear of dentistry. She enjoys general dentistry, encompassing procedures such as white fillings, extractions, root canals, teeth whitening, onlays, crowns, bridges, occlusal splints and removal dentures.

Daria has a gentle approach, and she is dedicated to getting to know each patient she treats because she believes that this way the patients get the best outcome.

She has a teenager son and enjoys walking in Cotswold and traveling with her family, keen to see the world. Daria is a PADI trained scuba diver and an amazingbeginner skier.

Thomas Oneill

Dr Thomas O’Neill

Dentist with a special interest in Dental Implants and Sedation
BDS (hons) Cardiff 2012, MFDS RCSE
GDC No. 229258

Tom graduated from Cardiff University in 2012, where he won awards in pharmacology, endodontics (root canal treatment) and oral surgery. Following this he passed further exams and was awarded Membership of the Faculty of Dental Surgery with the Royal College of Surgeons in 2015.

He is committed to postgraduate education, and frequently attends courses to ensure he is offering the best treatment to his patients. Notably, he has completed implant training with the International Team of Implantology.

To further his knowledge of implant dentistry, he has attended regular courses around the UK, learning from experts and key opinion leaders within implant dentistry. As such, he is able to offer a full range of implant treatments, ranging from single teeth, to multiple teeth and implant supported dentures.

Tom provides a full range of dental care to patients, from simple fillings, to more complex treatments. As a self-confessed dental geek, he has attended many courses to increase his knowledge and expand his skillset and has completed courses in dental aesthetics, crown and bridgework, denture provision, tooth wear and endodontics.

He prides himself on being detail orientated and ensuring he delivers the highest standard of care. He Following accreditation, he spent several years as a foundation trainer, where he mentored junior dentists during the first-year post qualification.

He is known for his calm manner, and ability to put patients at their ease. Additionally, he is qualified in dental sedation, to make even the more difficult procedures a pleasant experience.

Outside of dentistry, Tom enjoys cooking, keeping fit, and exploring the countryside with his sprocker spaniel, Wilf.

Rosamund Griffiths

Rosamund Griffiths

Dental Hygienist
Qual-National Certificate NEBDN 2001, Dip Dent Hygiene RCS (Eng) 2014
GDC No. 159623

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Izabela Idzinska

Dental Hygienist
DipDH 2012
GDC No. 244810

Margaret Chatambarara

Margaret Chatambarara

Dental Hygienist
Diploma in Dental Therapy & Hygiene RCS (Manchester) 2015
GDC No. 145795

Jo Rogers

Jo Rogers

Head Nurse
Qual- National Certifcate NEBDN 1995
GDC No. 137652

Jo qualified in 1995 after completing her NEBDN National Diploma. Jo worked at a previous Dental Practice for 16 years before leaving to have her children, she then joined the Pittville Lawn team in 2006.

Jo is a Qualified Dental Nurse that works alongside Dr Critchley. She is trained in Implants, Sedation, Cosmetic Dentistry and Impression Taking.

In her role Jo also carries out ordering of all necessary equipment and stock needed to ensure the smooth day to day running of the practice.

Jo is now looking forward to learning and improving in her role by undertaking a course on suture removal, which has been an interest of hers for some time.

Jo is married with two teenage daughters and enjoys spending time with her family whenever she can. Outside of work she enjoys shopping, eating out and socialising.

Natalie Bartolo Patel

Natalie Bartolo-Patel

Qual- National Certificate NEBDN 2002
GDC No. 153962

Natalie has been a dental nurse since 1996, however she didn’t sit her NEBDN exam until 2002, after she returned from spending a couple of years working abroad.

During 2010, Natalie was very lucky to be asked to become part of the team at Pittville Lawn and much of her work focuses on implant and restorative dentistry. Natalie has enjoyed being able to help patients achieve a smile that they are proud of.

Natalie has taken further training to enable her to assist with providing sedation for more nervous patients who require it, making treatment a possibility to a wider scope of people.

When Natalie is not working, she enjoys being outdoors and walking with her family and her Beagle. Natalie has also recently rediscovered her love for baking and decorating cakes. She has always had a passion for overseas travel and learning about different cultures and she is particularly proud of her Maltese heritage.

Becky Cudmore

Becky Cudmore

Qual- National Certificate NEBDN 1998, Transfered from BADN Voluntary Register
GDC No. 123793

Becky qualified in 1998 gaining the Qual- National Certificate NEBDN.

Becky has over 20 years of experience as a Dental Nurse and has a keen interest in oral hygiene instruction and diet advice under the supervision of Dr Chloe Harrington-Taylor. She has worked at Pittville Lawn for almost 13 years gaining experience in implant procedures assisting Dr James Critchley and Dr Mark Hamburger.

Becky is a busy Mum of two boys and she enjoys keeping fit and spending time outdoors. She also enjoys singing and is a member of a choir.

Aimee Killic

Aimee Killick

Treatment Coordinator
Diploma in Dental Nursing Level 3 QCF City & Guilds 2016
GDC No. 267748

Aimee started her dental nursing career back in 2014 and gained a Level 3 Diploma in Dental Nursing QCF City and Guilds in 2016. Aimee has been part of the highly experienced Pittville Lawn Dental and Implant Clinic team since August 2019 and has been involved in various aspects of specialist dentistry which are provided within the practice.

Aimee works closely with our Special Interest in Endodontics Dentist, Frederico. She finds this very interesting, as high-tech equipment is used, allowing great end results. When working with patients who are nervous about treatment, seeing their transformation and realising that dentistry is not something to be feared gives her great job satisfaction.

Aimee prides herself in carrying out her duties to the highest possible standard, following strict infection control procedures, especially in the decontamination room.

Outside of work Aimee enjoys keeping active at the gym and playing sociable netball. Aimee also enjoys spending time with family and friends and travelling the globe experiencing new cultures and places.

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Kasia Kowalczyk

National Diploma in Dental Nursing NEBDN 2017
GDC No. 269079

Kasia started her career as a Dental Nurse back in 2014 and joined our practice at the end of 2020. Kasia works with Dr Oonagh McSwiney aiming to provide the best possible care for our patients. She takes pride in her work and always looks on ways to improve herself. Outside of work Kasia practices yoga, loves long walks and travels with her family.

Ashleigh Brook

Ashleigh Brook

Trainee Dental Nurse

Jess Brafield

Jess Brafield

Trainee Dental Nurse

Elizabeth Fuller

Elizabeth Fuller

Practice Manager

Olivia Reception



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