Brown Stain on Teeth

This patient asked me why his teeth have these brown patches of stain.  He was afraid that perhaps he has a disease which would cause his teeth to turn brown.

The most common cause for stain on teeth is due to food and drink.  After a detailed discussion it was revealed that this patient sips on tea all day.  Tea is his beverage of choice, and the tannins in tea stain teeth aggressively and quickly.  Like tea, coffee and red wine can have the same effect.




Sometime the similarly looking stain can actually be caused by chromogenic bacteria in the mouth. If the stain is caused by these bacteria, the patient can have a professional cleaning done and the stain can reappear within hours after the cleaning was done.  Bacteria in the mouth can interact with iron in saliva to create stain.

In any event, stains form faster if the surfaces of the teeth are more porous and covered with plaque.  To prevent stain on your teeth, brush and floss after every meal to minimize plaque accumulation.  Long lasting stain can be removed with professional cleaning and teeth whitening products, but the best treatment of teeth stain is to prevent them from forming in the first place.


Modern Ceramics - Apple Watch vs Teeth

What do Apple Computers company and dentistry have in common?  The Apple Edition Ceramic Watch is made of Zirconia, a material commonly used in dentistry today. Zirconia undergoes a sophisticated fabrication process called sintering where its powder form is treated with heat to compact into a solid material of tremendous strength.  Zirconia can be shaped, layered with additional ceramics, or simply stained and glazed to create realistic details found in natural teeth.  The discovery of Zirconia allows dentists and dental ceramists to create beautiful restorations which can resist fractures.  However,  Zirconia is extremely technique sensitive in the lab.  Making Zirconia look good for front teeth requires the work of ceramists with meticulous artistic skills.

The first photo below shows the Apple Watch made out of Zirconia.  Note the highly polished glossy surface.  The Zirconia is so strong that a watch casing can withstand the stress of wear and tear.


The second photo here shows a clinical case of upper and lower veneers we recently completed with Zirconia.  Note the detailed characteristics which give the veneers life.  By taking advantage of the strength of the material, and combining its scientific properties with the art of dental ceramics these veneers will out last those created by materials in the past.


Apple Watch photo courtesy of