• July 7, 2025
  • Dr. Catherine-Anne Walsh

Must I Brush My Teeth Before or After Breakfast?

It’s a common dilemma faced during the morning rush—should you brush your teeth before or after breakfast? While both options might seem reasonable, dental professionals have a strong preference for brushing before breakfast, and the reasons go beyond just morning breath. In this blog, we’ll explore the science behind brushing timing, the risks and benefits […]

  • June 19, 2025
  • Dr. Catherine-Anne Walsh

The 5 Stages of Tooth Decay

Tooth decay doesn’t happen overnight—it develops in stages, often starting without any pain or visible signs. By understanding the stages of tooth decay, you can take action early and prevent minor dental issues from turning into major problems. At The Dentist at 70 Pitt Street, we believe in early detection, prevention, and minimally invasive treatment. […]

  • May 21, 2025
  • Dr. Catherine-Anne Walsh

What Is Plaque And Why It Matters for Your Smile

Keeping your teeth healthy isn’t just about brushing and flossing—it’s also about understanding what can harm your smile. One of the most common and damaging issues is plaque on teeth. But what is plaque on teeth, and why does it matter? In this guide, we’ll explore what causes plaque on teeth, how it affects your […]

  • April 22, 2025
  • Dr. Catherine-Anne Walsh

Different Types of Teeth and What Do They Do

Teeth play a crucial role in not only chewing and digesting food but also in speech and maintaining facial structure. But did you know that we have different types of teeth, each with a specific shape and function? In this guide, we’ll explore the types of teeth and their functions, answer common questions like “how […]

  • August 26, 2019
  • Dr. Catherine-Anne Walsh

Sleeping and other things

How’s the old sleeping been going? Probably good if you’re not involved in parafunctional habits like grinding your teeth! (or if you have small children—may I suggest coffee?) How to know if this is you? The grinding (not the kids). Well, staying up all night isn’t a viable option, and if your partner is dead […]

  • February 16, 2016
  • Dr. Catherine-Anne Walsh

Dental Erosion

What is EROSION and what is it caused by: What is tooth enamel? Enamel is the thin outer covering of the tooth. This tough shell is the hardest tissue in the human body. Enamel covers the crown which is the part of the tooth that’s visible outside of the gums. Because enamel is translucent, you can […]

  • January 29, 2013
  • Dr. Catherine-Anne Walsh

Why do we need fluoride? – By Christine Fischer-Stoess

You may have noticed a new addition to your hygiene appointment at your most recent visit. The Dentist has incorporated fluoride treatment into the hygiene appointment. Fluoride, as you may already know, helps to prevent dental caries (tooth decay). Why are we choosing to offer this to our patients? The evidence for the efficacy of fluoride […]

  • April 23, 2012
  • Dr. Catherine-Anne Walsh

Antibiotics and Dentistry

The Sydney Morning Herald recently published an article about the overuse of antibiotics in Australia and stated that “Prescribing Service data showed Australians’ antibiotics use was above the OECD average, with 40 per cent of people taking them in the past 12 months.” (Read more: http://www.smh.com.au/national/health/why-antibiotics-can-be-health-risk-20120419-1xa34.html#ixzz1soqupIc4) As I am sitting here, halfway through a course of […]

  • January 18, 2012
  • Dr. Catherine-Anne Walsh

Clever little teeth! Part 1, the miracle of renewal!

Hello, we’re back and wishing you all a Happy New Year! I love this time of the year: everyone feeling positive and ready to move on from the year before, vowing to make this one better than last! Riding that wave of positivity, in this series, we will go through only a few of the […]

  • December 13, 2011
  • Dr. Catherine-Anne Walsh

My little holiday message…

Before I start my holiday season technology detox, I just wanted you all to know that all the wonderful people who have contributed to my practice’s day-to-day running all through the past year, have made me one very proud woman!  This year, The Dentist at 70 Pitt Street has reached a whole new level of […]

  • July 20, 2011
  • Dr. Catherine-Anne Walsh

Are you getting “long in the tooth” or long in the tooth?

We have all heard of the phrase: “getting long in the tooth”. We use it when talking about horses and humans. They say you can tell a horse’s age by looking at their teeth. While we could probably say the same about humans, I hope that as people become more educated about their oral health […]

  • May 27, 2011
  • Dr. Catherine-Anne Walsh

On the environment and the vision for a healthy future!

Maybe it comes with getting older or with being a parent, but lately, I have felt an almost palpable change in my perception of the World. Not that I have just found out about global warming, dangerous weather, global food shortage or antibiotic-resistant bacteria plaguing the world (to name just a few), but once upon […]

  • April 11, 2011
  • Dr. Catherine-Anne Walsh

The Future (of Dentistry) is Unwritten

The recent gathering of the Australian dental force in Brisbane for the ADA’s Congress was a fascinating show of where dentistry in Australia is today.  The record, 4000 strong crowd presented on the first day, eager to collect their mandatory continuing professional development points. What many of us probably did not expect was to find […]

  • February 1, 2011
  • Dr. Catherine-Anne Walsh

Making your family’s dental care more affordable! Part 1: why is dentistry so expensive?

Dentistry in Australia is provided mostly in private dental practice. Our public health system cannot cater for the demands of even the most disadvantaged parts of our society. Partly, this is due to the fact that dental disease is a chronic disease that most people suffer from and with an ageing population, this demand is […]


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