Teeth cleaning

Hong Kong dentist via WhatsApp personally answers questions about teeth cleaning.

When should I get my teeth cleaned?

Preventing oral problems

洗牙價錢2025

Prevention of tartar, cavities and periodontal disease

Regular dental cleanings can effectively remove bacteria and plaque from the tooth surface, eliminate tartar, prevent its further development, and reduce the risk of cavities, gingivitis, periodontitis, and other oral problems.

Special ethnic groups

Certain groups are advised to have their teeth cleaned every three months, including pregnant women, diabetics, those with periodontal disease, braces wearers, people with dry mouth or taking high blood pressure medication, and patients undergoing chemotherapy or radiation therapy. These groups are more prone to plaque buildup, gingivitis, or weakened immunity, and therefore need regular cleanings to prevent periodontal disease and other oral diseases.

Other oral phenomena

You should schedule a professional dental cleaning immediately if you experience any of the following: red and swollen gums, bleeding gums while brushing, or persistent bad breath – these could be early signs of periodontal disease; noticeable tartar or staining on the teeth indicates incomplete cleaning; feeling unclean even after daily brushing may indicate excessive plaque buildup; and those with a history of cavities or periodontal disease should have regular dental cleanings to prevent recurrence. These conditions suggest that your oral health may be compromised and should not be delayed.

Teeth cleaning fee

2025 Teeth Cleaning Price

Regular teeth cleaning for periodontal disease / Price of regular teeth cleaning: HKD$650

Teeth cleaning process

Teeth cleaning process in Hong Kong in 2025

Teeth cleaning at Qi Ren Dental Center typically involves the following steps:

1. Oral examination

The dentist will conduct a comprehensive examination of the health of the teeth, gums, and oral mucosa to check for cavities, periodontal disease, or other abnormalities. They will also assess the distribution of tartar and plaque to determine the appropriate cleaning method. If necessary, the dentist may also recommend an X-ray (at an additional cost) to gain a deeper understanding of the tooth roots or the location of hidden lesions.

2. Ultrasonic teeth cleaning

Dentists use high-frequency vibration instruments to break up and remove tartar and plaque from the tooth surface and below the gum line. This method is particularly effective at cleaning deposits between teeth and deep in the gums, improving cleaning efficiency and reducing wear on the tooth surface.

3. Manual cleaning tools as an aid


Use a manual scraping tool for hard-to-clean areas (such as the back of teeth or deep in the gums).

4. Tooth polishing

Dentists use polishing paste and soft tools to gently polish the tooth surface. This not only removes minor stains but also makes the tooth surface smoother, thereby reducing bacterial adhesion and plaque formation, which helps maintain oral hygiene and aesthetics.

5. Fluorination treatment (if required)

It provides a fluoride coating to protect the enamel and reduce the risk of sensitivity and cavities.

6. Mouthwashing and Care Recommendations

Dentists provide personalized oral care advice based on individual circumstances, including proper brushing techniques and the frequency of flossing or mouthwash use, to promote healthy teeth and gums.

Common problems with teeth cleaning

Will it hurt when I get my teeth cleaned?

Healthy gums usually do not feel pain; if you experience discomfort, it may be a sign of gingivitis or periodontal disease.

Does teeth whitening make teeth whiter?

Teeth cleaning can remove stains and make teeth appear whiter, but it does not have a whitening effect; a separate bleaching procedure is required.

Will teeth cleaning damage my teeth?

Teeth cleaning uses ultrasonic vibrations, which will not damage the enamel. Widening of the gaps between teeth is a normal phenomenon after tartar is removed.

How long does a teeth cleaning take?

A regular teeth cleaning takes about 15 to 30 minutes, while a deeper cleaning may take longer and require multiple sessions.

How often should I get my teeth cleaned?

It is recommended to have your teeth cleaned every six months to a year. If you have periodontal disease, you may need to have your teeth cleaned every three to four months.

Does teeth cleaning make teeth looser and widen the gaps between teeth?

Under normal circumstances, teeth cleaning does not cause teeth to become looser or gaps to widen. However, some patients already have severe periodontal disease, leading to gum recession and loose teeth. When they undergo teeth cleaning, the tartar that previously filled the gaps and supported the teeth is removed, causing the teeth to become loose again, which is then mistakenly attributed to the cleaning itself. On the contrary, regular teeth cleaning helps to thoroughly clean teeth and prevent the worsening of periodontal disease and gum recession.

Is it easy to experience bleeding gums after a teeth cleaning?

Mild gum bleeding after a dental cleaning is common, especially for those who don't get their teeth cleaned regularly or have poor oral hygiene. During a cleaning, the dentist removes plaque and tartar from the gum line, which can irritate already inflamed gums and cause bleeding. However, this is usually temporary and will decrease with improved oral health and regular cleanings. If the bleeding persists or becomes very severe, it's advisable to consult a dentist as soon as possible to rule out other underlying oral health problems. Regular cleanings help maintain healthy gums and ultimately reduce the risk of bleeding.

Are your teeth sensitive after a teeth cleaning?

Teeth may become sensitive and sore after a dental cleaning, likely due to the removal of tartar and exposure of the tooth roots. This sensitivity is usually temporary; the teeth will gradually adapt over time, and the sensation will lessen. It is recommended to avoid extreme temperatures and high-sugar foods for 1-2 weeks after a cleaning, and to maintain good oral hygiene to help the teeth adjust and reduce sensitivity.

For patients with existing periodontal disease and receding gums, if sensitivity after a cleaning persists for an extended period or is accompanied by other discomfort, it is recommended to consult a dentist promptly to ensure there are no underlying problems. To alleviate post-cleaning sensitivity, the dentist may recommend using a specialized toothpaste for sensitive teeth and maintaining good oral hygiene habits.

Schedule a dental appointment

You can book your dental check-up and cleaning at Qi Ren Dental Center online in advance. For any dental questions, you can also WhatsApp us first, and a dentist will answer them personally.

Qi Ren Dental Center


Tsuen Wan Dental Clinic Phone Number


Dr. Chen Haoxian's WhatsApp


Consultation time


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