Bernard Siew

Dr Bernard Siew is from Adelaide, Australia, and qualified from University of Adelaide. He has practiced in Singapore for 17 years. Dr Siew’s areas of interest include cosmetic dentistry, Invisalign aligners, dental veneers in porcelain and resin, as well as teeth whitening. He is passionate about managing excessively worn teeth due to lifestyle problems, ranging from grinding to acid reflux.  His focus is on prevention and conservative therapy.  Dr Bernard is experienced in full oral rehabilitation and implant prosthodontics including crowns, bridges and dentures.

Patricia Hancock

Dr Hancock has more than 30 years experience working in London, Hong Kong, Geneva and Singapore.  She also lectured for many years in Hong Kong on Oral Radiology, Periodontology and Conservative Dentistry.  She also gained Part 1 of the Fellowship of the Australian College of Dental Surgeons.

Apart from dentistry, Dr Hancock’s expertise includes research experience in tissue culture and Oral pathology. She currently sits on the board of Newcastle University in Singapore (NUIS) and several other voluntary committees. Singapore has been home for quite some time and she is a founding member of the Smilefocus team.

Dr Hancock speaks French, German and some Cantonese.

Thushala Ubaya


Dr Thushala Ubaya qualified in dentistry with honours in 2000 in London and obtained her Membership in Orthodontics with the Royal College of Surgeons of Edinburgh and a Masters of Science in Orthodontics at the University of Glasgow. She then undertook further consultant senior orthodontic training at King’s College Hospital in London to obtain her Fellowship in Orthodontics in 2011 and is currently a Fellow of Dental Surgery in Orthodontics at the Royal College of Surgeons of Edinburgh.

Dr Ubaya has worked as a NHS Consultant Orthodontist at the Royal London Dental Hospital and a Clinical Lecturer at Barts and the London School of Medicine and Dentistry, Queen Mary, University of London. She was also the Lead NHS Consultant Orthodontist and Head of the Orthodontic department at Queen’s Hospital, Romford, Essex for 5 years. In addition to her hospital roles she worked part-time in private practice in London for six years.

Dr Ubaya is passionate about managing children and adults with dento-facial problems, including micro and macro smile aesthetics, dental health concerns, orthodontics, digital orthodontics, and managing teenagers and adults with complex jaw and teeth problems requiring orthodontics in conjunction with corrective jaw surgery.

Dr Ubaya offers all types of orthodontic treatments including contemporary orthodontic appliances such as tooth-coloured white cosmetic fixed braces and clear aligners.  Her passion is to deliver a positive body image experience with orthodontics. 

Working together with the patient to produce a beautiful, healthy smile and a satisfied patient with a positive overall experience has been the cornerstone of her practice and her ethos with which she approaches the management of all her patients. Dr Ubaya is friendly, approachable and enthusiastic about providing an enjoyable dental experience. She is happy to work through any questions or concerns that you may have prior to tailoring the treatment uniquely to each individual’s needs.

Brendan Gin

Dr Gin trained in Melbourne, Australia.  After 8 years of private practice he relocated to Singapore in 2000. Dr Gin has a range of experience in treating adults and children.  He has a particular interest in crown, implant crown and bridgework as well as aesthetic dentistry. With over 25 years of experience his gentle and caring manner has created a loyal contingent of followers who appreciate his calming effect on even the most nervous of patients.

Christina Liew

Dr Christina Liew trained in Melbourne, Australia and relocated to Singapore. She is a long serving member of the Smilefocus team having joined in 2003. Dr Liew is a general dentist with a particular interest in cosmetic work and minor oral surgery, such as wisdom teeth extraction.

Elaine Ng

Dr Elaine Ng was born and raised in Auckland, New Zealand. After relocating to Singapore in 1997 she trained as a dentist and worked in both public and private sectors. Dr Ng is experienced in managing trauma having worked in hospital dentistry and Accident & Emergency.

Dr Ng enjoys practicing conservative, restorative, surgical and aesthetic dentistry and aims to treat the patient as a whole, as she believes that educating patients about their health, particularly in the area of prevention, is the key to successful long term management.

Dr Ng is a practitioner of dental sleep medicine, which is an area of dentistry that works closely with otolaryngologists (ENT specialists) in the treatment of patients with snoring and sleep breathing disorders such as obstructive sleep apnoea.

Dr Elaine offers therapy with botox for the management of bruxism (tooth grinding), hypertrophic jaw muscles and its associated symptoms, as well as facial aesthetic treatments.

Francine Chia

Dr Francine Chia trained in Adelaide, Australia and has over 15 years clinical experience. Dr Chia has been a member of the Smilefocus team since 2008.  She particularly enjoys cosmetic dentistry and has specific training in Invisalign and Cfast.  Dr Chia’s motivation is to help improve your smile while encouraging optimal oral hygiene and health.

Alison Roberts

Dr Alison Roberts graduated from the Manchester, UK in 1997. After a year in practice she returned to the hospital environment to gain valuable surgical experience. A brief period exploring the world led Alison to work as the only dentist on the Cocos Keeling Islands and Christmas Island. On returning to London, Dr Roberts worked in a busy General Practice for 10 years before relocating to Singapore. Dr Roberts is experienced in both Invisalign, Cfast and cosmetic treatment procedures.

Dianne Sainsbury

Dr Dianne Sainsbury graduated from Otago University in 1997 and has worked in NZ, Australia and the UK, and has also had the opportunity to do voluntary work in Cambodia and Vietnam. Dr Sainsbury is passionate about preventive dentistry. She is experienced in family work, crown and bridge, implants and teeth whitening, and aims to build long-term relationships with parents and their children.

Teodora Kent

Dr. Teodora Kent is a kind and empathetic dentist who takes the utmost care of her patients. She was in private practice for 5  years in Brisbane and Sydney before joining Smilefocus in 2014. She graduated with first-class honours from her Bachelor of Dental Science, and her honors research has been published internationally.

Dr. Kent is a general dentist with a particular interest in restorative, cosmetic and paediatric dentistry. Dr. Kent also speaks Serbian.