Our Orthodontists

Specialists for your smile


Dr Leigh Jones  

BDSc (WA), DipOrth (Denmark), MS Orth (Denmark), PhD Orth (Denmark)

Dr Leigh graduated with a Bachelor of Dental Science from the University of Western Australia. He worked as a general dentist in WA for several years before completing his specialty training in orthodontics at the Royal Dental College in Aarhus, Denmark.  He then completed his PhD in Odontology in 2011 in Denmark through the University.

Dr Leigh has run a successful Orthodontic Practice in Sydney for almost twenty years and has a wealth of experience and knowledge.  He enjoys treating patients of all ages. Dr Leigh also teaches the orthodontic registrars at the University of Sydney, whom his able to share his knowledge and experience. Dr Leigh continues to keep abreast of new advances in orthodontic treatment through seminars and conferences in Australia and overseas.  He is Past President of Manly Warringah Dental Study Group, a position he held for 18 years.

Dr Alex Wenden

BDent (Hons) Sydney, MOrth (Hong Kong), MOrth RCS (Edinburgh), BMedSci (Sydney)

Dr Alex completed his dental degree at the University of Sydney, graduating with Honours in 2007. After this he worked as a general dentist treating medically complex patients at Royal Prince Alfred Hospital in Camperdown. With a passion for the field of orthodontics, Dr Alex accepted a three year specialty orthodontic training position at the University of Hong Kong, which he completed in 2012. During this time he also completed a Membership in Orthodontics at the Royal College of Surgeons in Edinburgh, UK.

Since then Dr Alex has worked as a orthodontist both in his hometown Sydney, as well as in Singapore and is now excited to offer the most state of art orthodontic procedures to the Tamworth area. Dr Alex is a Registered Orthodontic Specialist with the Dental Board of Australia (AHPRA), is a member of the Australian Dental Association, the European Orthodontic Society the Royal College of Surgeons of Edinburgh and is an Invisalign® accredited Orthodontis

Dr Dinesh Sanmuganathan

BDS (Syd), DCD (Adel), MRACDS, MOrth RCS (Edin)

Dr Dinesh completed his Bachelor of Dental Surgery in 2001, after which he worked in both the Hunter and Sydney regions as a general dentist. During this time he also had the opportunity to complete volunteer work overseas and the combination of these experiences allowed him to get a strong background in all areas of dentistry and experience different types of communities.

He then spent three years in the picturesque city of Adelaide, where he finished his specialist training obtaining a Doctorate in Clinical Dentistry (Orthodontics). Upon entry, he was the sole orthodontic student in receipt of the Australian Postgraduate Award, a national scholarship for academic excellence. Since then he has completed a Membership in Orthodontics with the Royal College of Surgeons (Edinburgh) and also a Membership in Orthodontics through the Royal Australasian College of Dental Surgeons. Dr Dinesh has been provided orthodontic care to thousands of people in Tamworth for close to ten years!

Dr Ashwin Nair

BDent (Hons)(Syd) DClinDent (Orth)(Syd) MRACDS (Orth) BMedSc

Dr Ashwin completed a Bachelor in Medical Science at UNSW, he went straight into dentistry at the University of Sydney, completing it with honours. He then worked in private practices in and around Sydney for seven years, giving him valuable experience in all aspects of dentistry, while also participating in volunteer programs providing dental treatment to underprivileged people in Fiji.

Whilst in general practice, Dr Ashwin thoroughly enjoyed treating children and teenagers and seeing the positive changes in their confidence whilst they underwent their orthodontic treatment with their orthodontist. After undertaking a number of continuing education courses, he decided to pursue his interest in orthodontics by returning to university. The three year specialist orthodontic program at the University of Sydney has provided Dr Ashwin with the skills to provide orthodontic treatment to a broad spectrum of patients, with treatments ranging from early intervention to orthognathic surgery.

Oral Health Therapists


Hi, I’m Julie, an orthodontic hygienist at Orthodontics at Tamworth. I’m based in Sydney but I fly up to Tamworth every second week with Dr Dinesh and our other hygienists. This is my fourth year working with Dr Dinesh and now with Dr Leigh too and I absolutely love getting to see our friendly Tamworth patients! I graduated from the University of Sydney in 2015 and have really enjoyed being able to work in both general dentistry and orthodontics. I’ll never be able to get over the excitement of taking someone’s braces off and showing them their new smile for the first time!


Hi there! My name is Pete and I am the newest edition to the Orthodontics at Tamworth Family. I started here in January 2019 and graduated from the University of Sydney’s Bachelor of Oral Health Degree, Class of 2018. During my studies I was a recipient of the Denstply and Sirona Research Award and undergone clinical training at various Sydney and rural Dental Hospitals and clinics. Whilst attending University, I was also a Dental Assistant at one of Dr Dinesh’s other clinics and was lucky enough to join his lovely orthodontic family upon graduating. I help Dr Leigh and Dr Dinesh in a multitude of orthodontic aspects including changing your wires, giving some neat tips on maintaining optimum oral hygiene and taking off your braces. One of the most rewarding aspects of the job is always seeing younger kids who enter being quite dentally anxious but eventually love coming back through our doors and visiting us. And of course we cannot forget that moment when we get to reveal that brand spanking new smile to you!!

In my time off I enjoy playing tennis, going for walks, chilling with friends and eating lots of food. Next time you come in for a visit say “Hi”. I’m looking forward to aiding Dr Leigh and Dr Dinesh in helping you along your orthodontic journey here at Orthodontics at Tamworth.



Hi, I’m Courtney, I am one of the Orthodontic Hygienists and I have been working with the Orthodontics at Tamworth team since 2015. I graduated as an Oral Health Therapist from Sydney University in 2009 and have gained experience in every division of dentistry possible working in Melbourne, Sydney, remote communities in the Northern Territory and even Cambodia as a volunteer.

I am currently on maternity leave looking after my busy baby girl and doing some exciting behind the scenes work but my passion is being in the clinic engaging with patients and having the pleasure of watching their confidence grow as their smiles improve. I hope to get back to the Tamworth clinic soon as it has always felt like a home away from home.



Hi there – my name is Mandy and I’m an orthodontic hygienist here in my home town at Orthodontics at Tamworth. I graduated from the University of Newcastle in 2009 with a Bachelor of Oral Health and have worked in general dentistry ever since.

Since I was about 7 years of age I was always fascinated with braces and as hard as I tried, I could never convince my parents and my dentist that I needed them. That was until Dr Dinesh, Dr Leigh and Dr Alex listened to my concerns, and finally as an adult I have my braces! Not only did I get braces but I also started working at Orthodontics at Tamworth in 2019 and I love it – life is good!

I love being part of the journey with our patients and their families, the rewards are countless but one that stands out for me is seeing the pride that shines through from parents and carers who have been able to make it all possible.


Shop 1, 62-78 Bridge Street, Tamworth, 2340, NSW

Opening Hours

Monday to Friday 8:00am to 6:00pm

To find out more, please contact our clinic to book an appointment with one of our orthodontists.