Considering teeth whitening to get your gleaming smile back? There are typically 2 common kinds of this dental work: at-home and in-office whitening which we have available at Sydney Dental. 

Teeth whitening

More and more customers are coming into our clinic for their beautifully bright smile. At this point, you may be thinking to yourself, is teeth whitening effective and safe? Are you a good candidate? Then don’t go anywhere just yet, read on with us to find the answers to the most commonly-asked questions regarding this cosmetic dental treatment.

Dental implant

1. What is teeth whitening?

Teeth whitening is basically a method used to make your teeth brighter. Although your teeth won’t become glaringly white, the whitening can lighten your current teeth color by several shades. 

2. Why is it done?

People receive teeth whitening to solve the discoloration of their teeth. There are two degrees of tooth discoloration:

  • Discolored tooth surface. This can be found in those who smoke for many years, have a habit of eating colored foods that erode the enamel, use mouthwashes with high concentration of Chlorhexidine or Hexetidine for a long time or individuals who fail to practice proper oral hygiene.
  • Deep discoloration. It is caused by genetic factors, age, excess fluoride in water supply, or heavy use of medications.

3. Who can perform teeth whitening?

Teeth whitening

Teeth whitening is a dental procedure and should only be carried out by a dentist or a well-trained dental professional, like a dental hygienist or dental therapist with a referral from a dentist.

Currently, there are beauty salons on the current market that provide teeth whitening. However, it is considered against the law if there is no certified dental provider, which can do harm to your oral wellness.

Teeth whitening can also be done at home with DIY teeth whitening kits but these may also come with certain risks.

3.1 What are the options?

Methods of brightening teeth are many, like using natural foods, whitening toothpaste or gel, and strips. However, the most common ones are at-home whitening trays and in-office teeth whitening.

3.2 At-home whitening

Whitening trays are made of clear plastic to hold the whitener and prevent saliva from coming in. You still have to come in the clinic with this option as the dentist will take impressions of your teeth to create the tray of your teeth size. Generally, this method is quite effective with low cost but not helpful in all cases. Therefore, most of the time the dentist will recommend at-home trays to people with slightly yellow teeth.

3.3 In-office whitening

This procedure includes 3 steps, namely removing tartar, polishing, and whitening teeth. The dentist will use a whitener together with a high-intensity light beam to enable the chemical to penetrate deeper. Before applying the whitener, the dentist will give you gum and mouth protectors as well as use anti-sensitivity medications for your comfort.

The biggest advantage of this method is its quick, efficient effect on severe complaints and tooth discoloration. A plus is upper and bottom teeth will look evenly and naturally white as they are treated at the same time.

4. Is dental whitening safe?

There are many options for teeth brightening – from whitening kits and brightening toothpastes, to in-clinic treatments and home remedies. Nevertheless, you should keep in mind that before opting for any procedure, take your time to learn well about the treatment and where you can get it done safely. Always place your trust in a reputable dental clinic with qualified dentists and staff for the best outcome and utmost safety.

5. Are there any risks from dental whitening?

Teeth whitening

Whatever treatment you go with, there is always a chance of sensitive gums as a response to the agents used in teeth whitening, especially if sensitive teeth are already a problem. There’s also a risk of burning sensations in the gums. Additionally, certain at-home whitening kits can be harmful to your tooth enamel.

6. So are you a candidate for teeth whitening?

For the vast majority of people, whitening can work really well and the results will be a significant improvement. However, there are some instances where patients aren’t suitable for treatment.

This dental procedure may not the good fit for you if you:

  • Are under the age of 18;
  • Have dental restorations, such as crowns, bridges, porcelain veneers, and tooth filling, plastic crowns;
  • Are pregnant or breastfeeding;
  • Have sensitive teeth and gums;
  • Stubborn stains. Some stains can resist strong whiteners used at dental facilities. If this is the case, you may need an intensive teeth brightening plan at home or alternatives like dental veneers, crowns, and filling;
  • Have transparent teeth, especially the weakened front teeth area due to aging.

It is also worth remembering that, although teeth whitening is completely safe when performed properly in a qualified dental setting, it can result in temporary tooth sensitivity to temperature, pressure and touch, as well as gum irritation. Therefore, it is advised that you visit your dentist to have the status of your teeth and gums evaluated in advance of the treatment.

7. What to discuss with the dentist before I make a choice?

Do not hesitate to raise any questions about the treatment details, such as the whitening options available for you, the outcomes you can expect and the duration of the treatment as well as the cost.

You may also want to know if there are any risks from the treatment, like any increased sensitivity to your teeth or gums.

You can also consult with acquaintances who have undergone teeth whitening or maybe get a second opinion from another dental provider as long as it makes you feel assured and confident to proceed with the treatment. It is important to always ask for a clear written treatment plan and estimate fees before getting anything done.

8. Does teeth whitening produce ever-lasting effects?

The outcome of whitening teeth is not permanent. It can last for a few months to a maximum of three years depending on each particular case.

The whitening effect may be reduced if you smoke cigarettes or drink red wine, tea or coffee on a regular basis because these can all stain whitened teeth.

9. Does teeth whitening work on artificial teeth?

The sad news is dental whitening doesn’t have an effect on dentures, crowns, fillings or veneers.

10. What to do if you are not happy with the brightening results?

If you feel like your results are unsatisfactory, do not delay in talking to the dentist that performed the whitening procedure for you for further recommendations.

11. Zoom Whitespeed whitening technology at Sydney Dental

Teeth whitening

At Sydney Dental, we use Zoom Whitespeed technology and the exclusive Philips Zoom whitener for the best whitening effect.

Our doctor will apply the Zoom whitener and shine the LED beam on the teeth’s surface to stimulate the chemical to enter deep into the teeth. The Hydrogen Peroxide in the whitener will help eliminate any discoloration, bringing an evidently bright tone for your teeth.

12. The pros of Zoom Whitespeed

  • Zero ache and numbness. The LED beam doesn’t radiate too much heat and thereby won’t cause any ache or irritation to the teeth’s pulp.
  • Perfect safety for your eyes. The LED system with cool lighting in combination with the cotton guard from Zoom Kit helps protect the eyes of the patients and doctors from being affected by lasers.
  • Intensive, effective whitening. The density of the LED Zoom Whitespeed is double that of other lighting systems on the market. Therefore, the light-sensitive particles inside the whitener will be stimulated to the greatest extent, optimizing the whitening results.
  • Varying modes for different needs. LED Zoom Whitespeed comes in 3 levels, namely light, medium, and intensive. The treatment mode will be selected according to the oral conditions of each patient following thorough examination.

13. How to prevent your teeth from getting discolored and maintain the whitening results?

Every one of us desires a shiny, beautiful smile as it greatly improves our appearance and boosts our confidence. If you want to better the color of your tooth enamel, limit taking in foods and beverages that can yellow your teeth. It is not a toughie to maintain nice, white teeth if you are aware of the foods that can yellow your teeth to stay away from, right?

Here are the list of foods and drinks that are not very friendly to a white, shiny smile:

  • Coffee

Coffee, especially black coffee, stains teeth. Many individuals have the habit of having a coffee right after brushing instead of having their breakfast first. As the tooth surface has many spongy holes, they can absorb the liquids that come in your mouth.

The dark shade of coffee will easily stick to these holes, turning teeth yellow and more and more dark-colored over time. However, you can avoid this problem by putting some in your coffee. This helps brighten the black coffee up as well as give you a good amount of calcium.

  • Tea

In the hope of preventing tooth discoloration, many people opt for tea to keep their mind alert as a replacement for coffee. Nevertheless, this idea may not create the expected results. Tea has quite a lot of tannin, a matter that can discolor the tooth enamel. The amount of tannin tea varies, depending on the type of tea that you drink. The darker-colored the tea is, the more it may discolor your teeth.

If you can’t give up tea, have green or white tea instead of black tea. Of course they still affect the color of your tooth – it is just that their impact is not as severe as that from black tea.

  • Sodas

Not only does this type of drink harm your health, they also hurt your teeth’s bright color. As you drink cokes, sugar together with artificial acids will affect the tooth enamel, weakening and discoloring the outer layer, especially if you consume it on a daily basis.

Similar to tea, although you can avoid tooth discoloration by drinking light-colored or clear cokes, the sugar and acids will still harm your teeth. Therefore, try to minimize your coke consumption.

  • Dark fruit juices

Grape and cranberry juices are among the biggest causes of yellowish teeth. Even though they are very beneficial for your health, they contain unnecessary types of melanin to teeth. In addition, fruit juices come with quite a lot of acids that can wear out and discolor your teeth easily. 

You can switch to light-colored fruit juices, such as apple or orange juice. Moreover, drinking fruit juices in light shades also helps rid of stains on teeth from foods.

Teeth whitening

  • Ice pops

Nothing beats enjoying a yummy ice pop on scorching hot summer days. However, foods that leave the color on your lips and tongue can also discolor your teeth. Try to limit this snack and go with healthier choices like frozen fruits instead.

  • Soy sauce

Your teeth are not discolored by only dark-colored beverages. Dark liquid seasoning used to give food a better taste, like soy sauce, also has a similar impact. Plus, try to use soy sauce in moderation also because it contains large amounts of sodium – an ingredient that can do harm to people with high blood pressure.

  • Wine

In spite of its benefits to your cardiovascular health, red wine is not at all friendly to your teeth. If you have any doubt, smile to a mirror after a wine – the result should really surprise you.

Moreover, red wine has been shown through studies to have anti-inflammatory properties that can help alleviate and prevent gum disease. Therefore, opt for white wine or rinse your mouth thoroughly after having wine.

  • Ketchup

Ketchup is a product that can be found in almost every family’s spice rack. You can already tell through the dark, eye-catching color of this sauce that it has many antioxidant substances and vitamins that the body needs. However, regular intake of this seasoning can make your teeth yellowish over time. However, you don’t have to avoid ketchup completely – you can prevent the discoloration by having some salad.

  • Blueberries

Blueberries are one of the superfoods that provide many health benefits yet many people hesitate to have it for fear of the dark stains it can leave on teeth. You don’t need to steer clear of this fruit. Instead, wash your mouth with water to remove the residue afterwards.

  • Beets

If you have prepared beets, you may know how easily they can leave dark stains. Like blueberries and tomatoes, beets are really beneficial for your health yet they can discolor your teeth even more than other fruits and veggies. Swishing your mouth after eating usually won’t be very helpful – you also need to clean your teeth thoroughly to maintain your gleamy smile in the most thorough way.

Handy tips to preserve the color of the tooth enamel

Before having anything that can possibly stain your teeth, eat some dark-colored vegetables first. They will create a layer on your teeth that can help protect them from acidification, which is the main culprit of discoloration.

After a meal, you may want to have some carrots, cauliflower, and celery. These green foods help sweep the dark-colored residue off your teeth. Additionally, swish your mouth after eating and wait from 30 minutes to 1 hour before giving your teeth a brush. The reason why you should not brush immediately following eating is your enamel will be more fragile than usual due to acids from foods. In other words, if you brush too soon, the protective enamel layer can be worn out. This waiting time also allows the mineral recovery process to complete. Drink a glass of water during this time to remove any food particles stuck on your teeth without harming the tooth structure.

14. A word from Sydney Dental

trồng răng sứ bao nhiêu tiền

Hopefully after this one read you will have a good idea of what teeth whitening is like, the procedure, the outcome, how to keep the results long-lasting, and what the options we Sydney Dental have available for you as well as if it is something you need for the time being. If you are still unsure of which treatment to go with for a new unforgettably stunning smile in your particular case, do not hesitate to reach out to us. We are at 499-501 Ba Hat St, Ward 8, District 10, HCMC looking forward to your visit. You may also call us at (028) 3504 9440 for a free no-obligation comprehensive consultation. Your pretty, shiny smile is 100% guaranteed at Sydney Dental!

15. About us


About Sydney Dental

Sydney Dental Center was established by Master-Dr. Nguyen Ngoc Hai, who has spent more than 25 years accompanying and bringing more than 10,000 smiles to customers from all over the country. With the motto “Being a true carpenter never closes the back of a cabinet with trash wood, even though no one knows” – (Steve Jobs), Sydney Dental Center takes care with sincerity in every service even the smallest.

The history

Sydney Dental Center was established in 1996 with the forerunner of the dental clinic of Dr. Nguyen Ngoc Hai at 499-501 Ba Hat, Ward 8, District 10. After a period of operation with constant efforts. With a team of doctors and dental equipment from famous brands in the world, combined with the meticulousness from all services, Sydney Dental Center has won the hearts of many customers.

By the end of 2020, Sydney Dental Center officially opens 1 more facility located at Vinhome golden river Villas, No. 2 Nguyen Huu Canh, Ben Nghe Ward, District 1 with the desire to bring high quality dental services. to all customers. Besides developing a chain of clinics in Ho Chi Minh City, Sydney Dental Center also cooperates in development in Hanoi. With the brand name Navii Dental Care, located at 36 Hoa Ma, Hai Ba Trung, Hanoi and 42 Cua Dong, Hoan Kiem, Hanoi. Besides, Sydney Dental System has a plan to develop on a national scale with the leading dental chain system in the country.

Teeth whitening

Meet our team

Dr. Nguyen Ngoc Hai

Sydney Dental was established in 1996 by Dr. Nguyen Ngoc Hai. With the motto “When you’re a carpenter making a beautiful chest of drawers, you’re not going to use a piece of plywood on the back, even though it faces the wall and nobody will ever see it” – Steve Jobs, Sydney Dental strives to offer every single service with absolute care and sincerity and has captured the hearts of numerous customers.

Dr. Nguyen Ngoc Hai is a specialist in implants and cosmetic veneers, especially Laminate veneers. He has spent more than 25 years accompanying customers from all over the country, bringing them more than 10.000 bright smiles.

Dr. Nguyen Ngoc Hai’s qualifications:

  • Graduated with a Master of Dentistry from the University of Sydney, Australia;
  • Graduated from the Master Implant program at Loma Linda University and giDEEducation Institute, Los Angeles, America;
  • Certificate in Implant Expertise from Harvard University, Boston.

Currently, Dr. Nguyen Ngoc Hai is also a member of ITI Implant Society (International Team Implantology) in Switzerland, a member of DentalXP Implant Association in the USA, a member of giDE Education Implant Association in the USA, and a member of WAUPS Implant Society in Korea.

Dr. Le Thi Thai Hoa

Dr. Le Thi Thai Hoa graduated with high distinction from the University of Medicine and Pharmacy at Ho Chi Minh City with a bachelor’s degree in surgical dentistry. She attended a long-term abroad program in France after graduation. Dr. Hoa is one of the leading specialists in implant dentistry in Vietnam.

Dr. Nguyen Thao Nguyen

  • Graduated from the department of Odonto-Stomatology at the University of Medicine and Pharmacy at Ho Chi Minh City
  • BIOMEDE certification
  • Invisalign provider
  • Orthodontic mini Residency in Clear Aligner Technique certification.
  • Oral & maxillofacial specialist
  • Senior implant specialist
  • Around 15 years of experience

Dr. Ngo Cong Uan

  • Graduated from the department of Odonto-Stomatology at the University of Medicine and Pharmacy at Ho Chi Minh City
  • Specialist in Aesthetic Restoration & Minor Surgery
  • Nearly 20 years of experience

Our core values


At Sydney Dental, you are the center of our universe! We put you, yes you, first by being all ears to your concerns and needs to craft personalized services that are of the best quality for you and you only.


We explain to every detail from the get-go what we can do for you, how the treatments are done, the pros and cons, the cost… you name it. Everything is consistent and crystal clear and nothing to worry about once you place your trust in us!

After-sales care 

Treatment done? We’re not done! We still tend to you here at Sydney Dental with follow-ups and guarantees that are well-fitting to your schedule and wants. We care about you to the moon and back and. you. will. know.

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