Atria-City Dental Group Pte Ltd

391B Orchard Road
#08-08 Ngee Ann City Tower B
Singapore 238874 (Orchard MRT)
Tel: 65-6737 2777
Fax: 65-6735 7765

Our Services

Cosmetic Dentistry

• Teeth Whitening
(home & chair-side whitening)
• Bonding (To close up gaps)
• Porcelain Veneers/Laminates
(EMAX & Zirconia)


Veneers or laminates are very thin pieces of durable, tooth shaped porcelain that are custom made (for shape and colour) by a professional dental laboratory. They are bonded onto the front of teeth to create a beautiful and attractive smile.
Veneers can completely reshape your teeth and smile. They can often be alternatives to crowns and can provide a good solution in treating some dental conditions.
As with most dental restorations, veneers are not permanent and will someday have to be replaced. However, they are very durable and will last many years, giving you a beautiful long lasting smile.


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Teeth whitening (or bleaching) is a simple, non-invasive dental treatment used to change the colour of natural tooth enamel and is an ideal way to enhance the beauty of your smile.
Having whiter teeth has now become the number one aesthetic concern of most patients.   There are a number of ways to whiten teeth and the most popular method is using a home tooth whitening system. Alternatively, chairside whitening can be done in the clinic for the patient. Since tooth whitening only works on natural tooth enamel, it is important to evaluate replacement of any old fillings, crowns, etc. Replacement of any restorations will be done after bleaching so they will match the newly bleached teeth.
Teeth whitening is not permanent. A touch-up maybe needed every few years, and more often if you smoke, drink coffee, tea, or wine.

Reasons for teeth whitening:
Yellow, brown stained teeth
Normal wear of outer tooth layer
Fluorosis (excessive fluoridation during tooth development)
Stained teeth due to medications (tetracycline, etc.)

What does home teeth whitening involve?
This type of tooth whitening usually requires two visits.  At the first appointment, impressions (moulds) will be made of your teeth to fabricate custom, clear plastic, trays.

At your second appointment, you will try on the trays for proper fit, and adjustments will be made if necessary. The trays are worn with special whitening solution either twice a day for 30 minutes or overnight for a couple of weeks depending on the degree of staining and desired level of whitening. It is normal to experience tooth sensitivity during the time you are whitening your teeth, but it will subside shortly after you have stopped bleaching.You will receive care instructions for your teeth and trays, and be encouraged to visit your dentist regularly to help maintain a beautiful, healthy, white smile.

In-Office / Chairside Whitening


Chairside teeth whitening produces faster results. Gum and tooth sensitivity (formerly drawbacks to in-office bleaching) are more controllable today due to thicker peroxide gels (that don’t soak into the teeth as much as previous gels) and the use of desensitizers such as potassium nitrate and fluoride.

Disadvantages of In-Office Whitening

In-office bleaching is more expensive than take-home alternatives.
Results can be unpredictable, depending on factors such as age, heredity and the type of staining that is present.
In-office bleaching is not a permanent solution. Shortly after treatment is completed, the teeth start accumulating stains again. Many dentists therefore recommend home maintenance follow-up with a lower-percentage bleach that can be kept on the teeth for longer periods of time.

Stains That are Best Removed with In-Office Whitening

Chairside whitening removes organic stains or discolorations primarily caused by:
Aging. Over time, the teeth darken with a yellow or brown hue (which may be due to heredity and/or eating habits). Yellowed teeth tend to whiten more readily.
Consumption of certain foods (notably coffee, red wine, sodas and dark-coloured vegetables and fruits).
Tobacco use.

Stains Resistant to In-Office Whitening :

Teeth with certain stains – typically those that are inorganic – do not respond well to in-office whitening. In fact, these teeth may look even darker after the surrounding teeth have been whitened.

Trauma, which causes the dentine to darken.
Tetracycline antibiotics ingested during tooth-formation. These drugs chemically bind with the crystalline structure of both the tooth’s enamel and underlying dentine.
Overexposure to fluoride, which can cause fluorosis, resulting in tooth discoloration.

Are you a Candidate for In-Office Whitening?

This procedure is not suitable for those with the following conditions:
Tooth and gum hypersensitivity. To avoid a hypersensitive reaction, your dentist is likely to recommend take-home bleaching trays with a lower concentration of bleaching agent.

Deep and intractable staining. Some stains are resistant to high-concentration in-office bleaches. In such cases, dentists may recommend a supervised regimen of intensive take-home bleaching or alternatives to bleaching such as bonding, crowns or porcelain veneers.
Teeth that have become transparent with age. This is particularly true of the front teeth, which are thin to begin with.

Preparation of the Teeth

Your teeth will likely be given a prophylactic cleaning to clear away plaque and debris that have collected on the surface and between the teeth.

A dental exam will be performed (often in tandem with the prophylactic cleaning) to check for potential problems such as severe tooth decay, cracks and gum disease.  Dental radiographs are helpful during this examination. Bleaches can cause varying degrees of irritation if these conditions are present. Your dentist will likely delay the whitening procedure until such problems have been corrected.

Photos may be taken of your teeth, and their colour measured on a shade guide. This provides a benchmark for assessing your whitening progress.

The In-Office Teeth Whitening Procedure

While details may vary, a fairly standard routine is followed. Typically, the steps involved are not painful or uncomfortable; in fact, many patients doze or watch a DVD or TV during the procedure.

A cheek retractor is inserted into the mouth, exposing all the “aesthetic zone” teeth (teeth that are visible when you smile).
A liquid rubber dam or hardening resin is painted onto the gum tissue to protect against any irritation caused by the bleaching gel.
A bleaching gel containing hydrogen peroxide is applied to the aesthetic zone teeth and kept on for approximately 15 to 30 minutes.
The bleaching gel is suctioned or washed off, and fresh gel is applied for one or more additional periods of 15 to 30 minutes.
Some whitening treatments incorporate an intense light that is focused on the teeth and is said to activate or enhance the bleaching process. Opinions vary as to whether this light improves the bleaching outcome.
Between gel applications, the teeth are checked to see how well they have whitened, and whether more bleach needs to be applied.
After the final gel application, the cheek retractors are removed, the patient rinses and the immediate post-treatment shade change is measured. The teeth may whiten by as few as two to three shades or as many as eight (out of a total of 16). Part of the whitening effect is due to dehydration during the bleaching process, which makes the teeth look whiter than their true new colour. That colour will emerge after a couple of days.

If a satisfactory level of whitening hasn’t been achieved, your dentist may recommend follow-up in-office bleaching at a future date, and/or a regimen of take-home bleaching trays.