How do you know if you need a teeth cleaning? The truth is there isn’t one universal symptom that tells everyone it’s time for a professional teeth clean.
You might notice a little pink in the sink after brushing, or feel that your breath isn’t as fresh as you’d like. Or maybe you can’t remember your last professional cleaning.
Either way, if you’re wondering when to get teeth cleaned in Australia, the general guideline is once or twice a year. But that can change from one person to the next. Your best bet is to keep an eye out for the common signs that it’s time to book a routine dental check-up and clean.
How Do I Know If I Need a Teeth Cleaning? 10 Signs to Look For
Some signs that tell you it’s time to get your teeth cleaned are easy to miss. Others are easily mistaken for something serious, when in reality you might just need a simple scale and clean.
Once you know the signs, you can take steps to manage them and protect your oral health. Just remember that only your dentist can tell you what’s happening in your mouth. Treat this as a guide, not a diagnosis.
1. Your Gums Bleed When You Brush or Floss
What you might notice: There’s a little blood on your toothbrush, in the sink after brushing, or on your floss. It might appear every time or only when you clean one particular spot.
What it may mean: Bleeding gums when brushing are common. The usual cause is inflammation from plaque and tartar along the gum line. Plaque that isn’t properly removed can sometimes harden into tartar.
Bleeding gums don’t automatically mean a serious problem. They are, however, worth having assessed, especially if the bleeding keeps happening.
What a professional clean can do: A scale and clean removes plaque and hardened tartar around the gum line, including deposits that you can’t remove with a toothbrush at home. If your dentist or hygienist finds signs that the inflammation needs more than a routine clean, they can explain the next step.
2. Your Breath Doesn’t Freshen Up Properly
What you might notice: You brush, floss or use mouthwash, but your breath still doesn’t feel fresh for long.
What it may mean: Persistent changes in breath can have several causes. One is bacterial build-up in places that are difficult to clean properly, including between teeth and around the gum line. The tongue can also hold bacteria.
Tartar makes this harder because its rough surface can collect more plaque and bacterial deposits. Once tartar has formed, brushing harder won’t remove it.
What a professional clean can do: If cleaning between your teeth isn’t a daily habit, you’re not the only one. An Australian Dental Association survey of 25,000 Australians found 74% rarely or never floss.
A professional clean removes the tartar and bacterial deposits that are often behind persistent odour. If your breath still bothers you afterwards, your dentist can look into other possible causes with you.
3. Tartar Build-up On Your Teeth
What you might notice: There’s a hard yellowish or brownish deposit stuck to the tooth surface. It’s most common on the inside of your lower front teeth, just behind where your tongue rests, and around the gum line on the back teeth.
You may feel tartar before you see it, as a rough patch when you run your tongue across your teeth.
What it may mean: Plaque starts as a soft, sticky film of bacteria that forms on your teeth every day. Brushing and cleaning between your teeth is usually enough to remove it, although some can remain in hard-to-reach areas.
Over time, minerals in saliva can cause that remaining plaque to harden into tartar or “calculus”. Only professional cleaning can remove calculus. Trying to scrape it off yourself can damage your teeth or gums.
What a professional clean can do:
During a scale and clean, your dentist removes calculus with an ultrasonic scaler, which breaks up deposits using vibration and a fine spray of water. You’ll feel some buzzing and pressure, but it shouldn’t hurt.
Visible tartar doesn’t mean you’ve been brushing badly. However, this is one of the clearest signs that it may be time to arrange a dental check-up and professional clean.
4. Your Teeth Look More Yellow Than They Used To
What you might notice: Your teeth seem a shade or two darker, particularly close to the gums or in the spaces between teeth.
What it may mean: Some colour change comes from staining on the outside of the tooth, or on tartar. Coffee, tea, red wine and tobacco can all contribute to this type of surface or “extrinsic” staining.
That is different from “intrinsic” discolouration. Intrinsic colour sits within the tooth itself. It often comes with age as enamel thins, or after an old injury, and a clean won’t change it.
What a professional clean can do: The polish at the end of a professional clean removes surface stains. If your yellowing is mostly extrinsic, you may see a difference.
For deeper discolouration, you can talk with your dentist about options for teeth whitening in Perth. Whitening works on clean teeth, which is why we start with an examination and a scale and clean.
5. Your Teeth Feel Sensitive to Hot or Cold
What you might notice: A sharp twinge when you sip a hot drink, or bite into something cold or sweet.
What it may mean: Sensitivity has several possible causes:
- Receding gums exposing part of the root surface
- Worn enamel can similarly expose sensitive roots
- Plaque and tartar contributing to inflammation
A professional clean and examination helps identify which applies to you.
What a professional clean can do: If your sensitivity is linked to gum inflammation or build-up, a clean can address the underlying cause. If it’s coming from enamel wear or an exposed root, your dentist will explain the next step, which may be as simple as a desensitising toothpaste. Some people notice a little extra sensitivity for a day or two after a clean.
If a tooth is suddenly painful or an ache lingers after eating, don’t wait for a routine clean. Call us on 1300 625 625 or read our guide on what to do in a dental emergency.
6. It’s Been a Long Time Since Your Last Clean
What you might notice: You might realise 12 months (or 18, or more) have passed since your last appointment, or you may not remember exactly when it was. That’s not a problem, and it’s no reason to feel guilty.
The AIHW reported that 54% of Australian adults saw a dentist in 2024-25, which means almost one in two people didn’t.
What it may mean: Sometimes the simplest answer to “how do I know if I need a teeth cleaning?” is the calendar.
Even with twice-daily brushing, plaque can build up in spots a toothbrush can’t reliably reach. Every six to 12 months is a good time to get teeth cleaned in Australia, although everyone’s dental needs are different.
What a professional clean can do: A check-up and clean gives your dentist a current baseline and removes build-up that has collected since your previous visit. Your dentist can also recommend the right interval based on your gum health, decay risk and previous dental work.
7. Your Gums Look Puffy, Red or Have Pulled Away From Your Teeth
What you might notice: Healthy gums are usually firm and fit snugly around each tooth. You will know that you need a teeth cleaning and check-up if you notice:
- Gums that look swollen or redder than usual
- Teeth that look a little longer because the gum has crept back
These changes can stand out once you know to look. Although neither tells you exactly what is happening by appearance alone.
What it may mean: Redness and swelling may indicate inflammation around the gums. Gum recession is an early sign of changes in the gum tissue that are worth a professional look. Receding gums are worth addressing early, as they expose the tooth’s root.
What a professional clean can do: A professional clean removes bacterial deposits and tartar that may contribute to gum inflammation. At the same appointment, your dentist can assess the gum tissue and determine whether routine cleaning is enough or whether another form of care should be considered.
8. You Notice a Change in Your Bite
What you might notice: Something in your mouth feels slightly different when you bite down. The top and bottom teeth might not meet the way they used to, or one tooth feels a little higher than its neighbours.
What it may mean: Bite changes can happen for several reasons. Teeth can wear or gradually shift. Fillings, crowns or other restorations can also change over time.
Grinding your teeth at night (“bruxism”) is another common cause that can go undetected without a professional assessment.
What a professional clean can do: A professional clean itself does not correct a changing bite. The reason this belongs on the list is that a clean is usually paired with a dental examination.
During a dental check-up and clean, your dentist will look at how your teeth meet and assess whether anything has changed structurally.
9. You’re Preparing for Something Significant
You don’t necessarily need a symptom to arrange a professional clean.
You might have a wedding, a job interview, a milestone birthday or a medical procedure coming up, and you’re thinking about your teeth more than usual. Sometimes a change in routine is the reminder you need to catch up on dental care that has slipped down the list.
These are all perfectly practical reasons to book.
What a professional clean can do: A clean deals with built-up tartar and extrinsic staining. It also gives you an up-to-date picture of your dental health. Booking a few weeks ahead leaves time to look after anything your dentist finds.
Keep in mind that a clean isn’t a cosmetic dentistry treatment and won’t necessarily change the shade or appearance of your teeth. If colour is your main concern, ask your dentist about teeth whitening in Subiaco at the same appointment.
10. Your Teeth Feel Rough After Brushing
What you might notice: You’ve just brushed properly, but certain teeth still feel rough or uneven when you run your tongue over them. Sometimes people describe a “furry” feeling that never completely goes away.
What it may mean: Soft plaque can build up quite quickly after brushing. A temporary film isn’t unusual. However, persistent roughness in the same spot can come from tartar or surface deposits.
A rough area can occasionally have another cause, such as the edge of a filling or a change in the tooth itself.
What a professional clean can do: Professional scaling and polishing can remove plaque, calculus or surface staining.
If the surface still feels unusual after it has been cleaned, your dentist can check whether something else needs attention.
What Happens at a Professional Teeth Cleaning at Dental 359?
A check-up and clean combines a dentist’s examination with a professional scale and clean.
The scale removes tartar from your teeth and along the gum line, and the polish lifts surface staining. Your dentist also examines your teeth and gums and checks your bite. If your dentist feels that X-rays are needed, we will advise you before going ahead. It’s also a good time to ask any questions you’ve been saving up.
The appointment takes around 60 minutes, and new patients are always welcome. You can read more about dental check-ups and cleaning at Dental 359 here, including what’s involved and how to book.
How Often Should You Have a Professional Clean?
Once you’ve answered “how do I know if I need a teeth cleaning?”, the next question is usually how often.
For most adults, the general clinical guideline is a check-up and clean every six to 12 months, or as often as your dentist recommends.
Some people benefit from more frequent cleans, depending on their gum health and how quickly tartar builds up. There’s no single rule for when to get teeth cleaned in Australia, so your dentist will recommend an interval that suits you.
Book a Professional Teeth Cleaning at Dental 359 Subiaco
If one or more of these signs are familiar, a check-up and clean at Dental 359 is a sensible next step. Our team sees patients at all stages, including plenty who haven’t been in for a while.
Call Dental 359 on 1300 625 625 or book an appointment online at a time that suits you.





