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Mouth ulcers

A mouth ulcer is an open sore which can be painful. They can be found anywhere within the oral cavity including the lips.

The most common causes of mouth ulcers are:

  1. Trauma e.g. irritation due to rubbing of a filling, a broken tooth, or orthodontic braces
  2. Recurrent aphthous stomatitis (recurrent ulceration)
  3. Cold sores (herpes labialis), commonly found on the lips or around the mouth


There could be some of the following factors associated with mouth ulcer(s):

  • Trauma (mechanical, thermal or chemical)
  • Stress
  • Iron deficiency
  • Vit B12 deficiency
  • Some certain foods make ulcers worse e.g. some types of chocolate, coffee, fizzy drinks, potato chips or spicy/hot foods.
  • Certain medications, sometimes multiple medications
  • And others

What it may need

Remove the trauma e.g. remove the sharp edge of the tooth or have the broken tooth repaired. In an emergency sitaution, a nail file or sandpaper can be used to smooth the sharp edge of a tooth. Please contact our dental clinic to have the broken tooth repaired or removed.

Good oral hygiene can help prevent mouth ulcers. This includes brushing twice daily, flossing, and having regular dental checks (from $189) and hygienist cleans (from $129-259) at Gardens Dental.

A blood test can eliminate a deficiency.

You could speak to your GP to see if your medication is causing ulceration, and an alternative can be taken.

Will the ulcers disappear?

Most mouth ulcers last 7-14 days. If it is a traumatic ulcer due to a broken tooth, once this has been fixed, the ulcer should naturally disappear.

If the mouth ulcer has not gone within 3 weeks and there does not appear to be any obvious cause, please book in to see me for a consultation ($189), as it could be something that requires further investigation or referral to a specialist. 

I had my first visit at Garden Dental today on recommendation from a friend. Fi made me feel very welcome and is super friendly and caring with a very down-to-earth yet professional manner. I felt quickly at ease which is just what you want when you visit the Dentist. Everyone at Gardens was in fact wonderful and friendly. I'm very happy and will definitely will be coming back :-) thanks again!!
Natalie Thompson  
I can not recomend Fiona and Vicki enough. Have always dreaded going to the dentist until these guys. Cannot stress how easy they made each appointment, they give the good drugs so you dont feel a thing. They are also lovely and friendly and always great at making you laugh. seriously cant recomend them enough : )
Ali Uden  
I have never felt so relaxed or happy about going to the dentist. Fi and Vicky are incredible and make me feel so at ease. I really wouldn’t go anywhere else!!
Sian Casserly  
What an absolutely refreshing change to go to a dentist and come out after an amazing, painless process. Have not regretted changing to Fiona and her team.
Steve Bolt  
One of the best dental experiences to date. Fi was fun and lighthearted which made for a pleasant appointment. Super gentle and checked in with me often to make sure I was ok. Can’t recommend her and her skills enough!!
Kristy Whitchelo  
Fi and Vicki you are honestly such a fantastic dental team. I have been visiting for many years now and can not speak any more highly of you both. You make my visits feel so relaxed that it doesn't feel like you are even at the dentist. Thank you girls for always looking after me, you are the best
Louise Fox  
Just recently had a cleaning & cavity filled by the lovely Fi from Gardens Dental. She is amazing and works wonders not only on your teeth but also to ensure you are comfortable and at ease during your time with her! Would highly recommend her to anyone needing a local dentist!
Jess Lowcher  
First review because I just wanted to say Fi and Vicky are honestly the scared of dentists but they have made it the best experience ever. Very gentle, zero pain for multiple complicated procedures and don’t make you feel bad about not going to the dentist for ages ..they are super cool!
David Weaver  
Fiona is great to deal with and goes the extra mile, even ringing you in the evening to check that all is well. She is highly professional and a breath of fresh air. A thoroughly honest and approachable dentist.
Jez Rogers  
I had extensive work done on my lower teeth and a new top denture made. It was almost a fun experience.
Fi & Vicki are a great team, and their constant banter helped me to relax. They did so much to improve my smile and my self confidence. I highly recommend them both.
Helen Roberts