Benefits of chewing gum on teeth

In season with the approaching holidays, I would like to elaborate a little more on the oral benefits of chewing sugar-free gum.  Sugar-free gum can actually play a helpful in one's proper oral care routine.

Tooth decay is a prevalent and leading chronic disease among children, and among adults in certain geographic and socioeconomic areas.  Hence its importance that dentists and dental hygienists realize the impact of teeth decay, and how to promote oral health education and how to help protect one's teeth from dental caries.

Orbit Sugar Free Gum

One such method to lessen the risk of tooth decay is by chewing sugar-free gum.  In chewing the gum, it promotes and stimulates salivary flow (ie. increased saliva production from the Submandibular gland and the Parotid gland).  Saliva production is increased up to ten times the normal rate; this helps protect teeth by washing food debris away from the teeth, and also neutralize the acids found in food/drinks by raising the pH levels.   Saliva also protects the mucosal lines of the oral cavity by promoting sufficient hydration and thus helps prevent desiccation (drying).

A good time to chew sugar free gum are between the times one brushes during their teeth in the morning and at night. This could be as much as a 12-15 hour gap where one's teeth is more susceptible to tooth decay.

Examples of sugar free gum include Orbit and Trident.

If you have any questions on the role of sugar free gum in one's diet, be sure to consult with your Bellevue family dentist or hygienist.  Happy holidays!


Warm Regards,
Dr. Peter Chien
(425) 614-1600
www.bellevuefamilydentistry.com

Holiday Foods and Treats, dental eats?

Holiday Treats and Oral Health, a Dentist perspective

Now that the holidays are upon us, there are likely plenty of foods and drinks that tempt our appetite.
Have you wondered which how these tasty treats affect our oral health?

Let's take a look at a few foods and drinks, and how they affect your teeth and gums:

The good ones:
Sparkling Water - Water is great for your body and teeth and gums alike. It hydrates your body and teeth alike, and also helps wash away plaque and bacteria away from your teeth.  As long as the sparkling water does not contain sugar (if it contains flavors, that's okay), Dr. Chien and your dental hygienist at Bellevue Family Dentistry in Bellevue, WA recommends you drink away!
Chewing Gum (sugar free) - Chewing gum promotes salivary flow, which helps remove bacteria and plaque off the teeth's enamel.  Studies have shown that chewing gum is correlated with lower risk of dental decay and cavities.
Sugar free and pure cocoa - Coca has been to have a power positive affect one's cardiovascular health, and it has also shown be cariostatic (halts development of dental decay).  Try mixing cocoa with hot water and a splash of sweet and low for a delicious sugar free drink that is good for your teeth!

The not so good:
Milk - Though milk is good for the development of strong teeth and bones due to its high calcium and Vitamin D content, milk contains lactose, a type of sugar.  Infants and toddlers should be kept from drinking milk at night during bed time to prevent baby bottle decay.  Otherwise drink milk during the day and be sure to brush your teeth immediately afterwards.
Candy cane - This popular candy is made 100% from sugar and sugar products. It really adheres to the teeth's enamel and promotes plaque buildup, gum disease, and tooth decay.
Cookies and cake - Often loaded with sugars and unhealthy fats, it can be unhealthy for the body and teeth, increasing the risk of cavities.  Try to find sugar free and low fat cookies and cake when possible.
Coffee - People sometimes have a tendency to load their coffee with sugars and high fat milk sweeteners.  Plus coffee can promote extrinsic tooth stains that may be difficult to remove, even during a dental cleaning.
  
Regardless of times though, be sure to always brush and floss your teeth daily to help prevent cavities and gum disease.

If you have any questions about how some of the above foods and drinks can affect your teeth during these holiday times, your family dentist in Bellevue is here to address your concerns. 

Warm Regards,
Dr. Peter Chien
www.bellevuefamilydentistry.com
(425) 614-1600

Dental handpieces

You may be wondering what type of equipment your dentist uses when he/she works on your tooth.  The "drill" is actually called a hand piece, and there are two types of "drills" or dental handpieces your dentist typically uses, the high speed and the low speed.

The high speed handpiece is controlled by a sensitive amount of air pressure placed on the foot control.  The maximum speed of the high speed handpiece is 350,000 rpm and requires 32 psi of air.

The high speed is typically used for:

•  Initial cavity removal and preparation
•  Preparation of a tooth for a crown.  
•  It also used sometimes during a surgical preparation for a tooth during a surgical extraction.

The low speed handpiece is used for other operations, and has a speed range of 0 to 8,000 rpm and requires 40 pis of air.  The actual speed is also controlled by pressure on the foot control.  Unlike the high speed, the low speed handpiece can change direction of rotation (forward and reverse).  Such uses of the low speed include:

• Cavity refinement/removal
• Removal of decay
• Finishing and polishing of an amalgam and resin restoration
• Drilling pins and posts to assist in retention of a large filling
• Prophylaxis (dental cleaning)
• Laboratory grinding, finishing, and polishing

If you have any questions on the dental handpiece, be sure to ask your family or cosmetic dentist.

From your dentist in Bellevue,
Dr. Peter Chien
www.bellevuefamilydentistry.com
(425) 614-1600

Dental crowns, what makes it stay on?

Dental Porcelain Crowns

Dental crowns (ie. gold, porcelain fused to metal, and all porcelain) are used to reinforce a tooth's structural integrity and to allow normal functional occlusion.

But what makes the crown stay on the tooth?  A crown's retention is dependent on the following factors:

1) Taper.  The prepared tooth should ideally have 3 to 5 degrees of taper to allow for the restoration to be properly placed on the tooth. There should be no undercuts, as the restoration will not be able to be removed from the die and from the prepared tooth.  Conversely excess taper will limit the grip that the crown has on the prep, thus contributing to debonding of the restoration. Generally 6° of taper around the entire circumference of the prepared tooth, giving a combined taper of 12° at any given axial section through the prep is appropriate to both allow the crown for a proper fit and to allow enough retention.

2) Prep length.  The prepared tooth should also ideally have a minimum occlusal-gingival height of 4mm for molars and 3mm for anterior and premolars.  When such prep height is not possible, sometimes a core buildup is necessary to allow sufficient height and crown retention.


3) Adhesion.  There are two fundamental types of dental cements available, resin-based and acid-base cements.  Such cements allow the crown to adhere to the tooth by forming a chemical bond with the dentin and enamel.  The cement also forms an insulating and protective layer around the pulp.

If you have additional questions on the process of making sure a crown has sufficient retention, be sure to ask your family dentist.

From your family dentist in Bellevue,
Dr. Peter Chien
info@bellevuefamilydentistry.com
www.bellevuefamilydentistry.com

Floss, floss, floss :)

Dental Floss

It's mid November and patients are coming to the dental office to utilize their insurance benefits (a good thing!).  One trend I've been noticing is the hygienist talk to patients about flossing.  So I thought we can go through some benefits and pointers on why the dentist, hygienist, and American Dental Assocation favor the floss so much:

1) Dental floss is a composed of thin filaments; it can be made of plastic or silk, and is sometimes flavored.  Flossing removes food, bacteria, and plaque between the teeth.  It really is the best method to clean between the teeth, and around and underneath the gums.  Left alone, the bacteria can cause interproximal cavities (tooth decay).

The bacteria trapped between the teeth can then seep down into the gums, causing periodontal disease (gum and bone disease), gingival bleeding, and bone loss.

2) Flossing also helps clear out bad breath (halitosis).  The bacteria and food trapped between the teeth and left on the gums/gingiva can cause bacteria to grow within the warm and moist oral cavity, a favorable environment for bacteria.

3) Dental floss supplements tooth brushing.  Though tooth brushing is sufficient at removing bacteria and food debris/plaque, the toothbrush's bristles unfortunately cannot get between the teeth.  Some floss are waxed to facilitate movement between teeth.

4) Kids and adults of all ages should floss.  Ideally one should strive for daily flossing for optimal oral hygiene.  If not, a few times per week is better than no floss at all :)

If you have any questions regarding flossing, be sure to ask you family dentist and/or dental hygienist.  Remember to floss (and brush) lots!

From your family Bellevue dentist,
Dr. Peter Chien
(425) 614-1600
www.bellevuefamilydentistry.com

Busy lifestyle dental tips...

School is in full force and working parents are busy, constantly on the go.  It can be easy to forget about one's oral health.

Below are some ways to keep one's teeth healthy and in tip-top shape:

1) Brush twice a day with fluoridated toothpaste to strengthen your teeth's enamel.
2) Floss at least once a day to help remove bacteria and food trapped between the teeth (ie. the interproximal surfaces).  This will also help reduce your gums from bleeding, and help control gingivitis.
3) Eat healthy foods (ie. fresh meats, vegetables, milk) to promote good oral and systemic health.
4) Mouth wash to help rinse off excessive plaque and loosen food debris from the teeth
5) Drink milk fortified with Vitamin D, preferably 2-3 servings a day.  The calcium and vitamin D will not only strengthen your body's bones, but also the bones holding your teeth as calcium also plays a role in teeth retention.  For those lactose intolerant, look for milk products that are lactose free.
6) See your dentist regularly twice a year for checkups and cleanings.
7) Limit sugar frequency; it's okay to eat sugar, just make sure the sugar intake is in controlled quantities and that one brushes his/her teeth after sugar consumption to decrease caries/teeth cavities risk.
8) For those who travel, considering having a travel sized pouch with toothbrush, toothpaste, and floss.

From your family Bellevue dentist,
Dr. Peter Chien
(425) 614-1600
www.bellevuefamilydentistry.com

Happy October 31st! Healthy benefits of sweets, and teeth!

October 31st is finally here!  Many kids and families celebrate harvest on this day, and it usually involves lots of sweets and sugars!  Believe it or not, your family dentist may actually be in favor of kids and adults eating sweets.  Below are some guidelines to follow from a dental perspective:

• If possible, avoid hard whole sugar candies.  People usually like to leave these candies long term in the mouth, as the sugars from these candies can promote caries and cavities.  The bacteria in the oral cavity metabolize the sugars, resulting in a release of lactic acid that can cause dental decay.  A good alternative is to look for sugar free hard candies if possible.
• Chocolate is good for you! JAMA and ADA studies have shown that cocoa has excellent health benefits for the cardiovascular system, and for your teeth and oral health.  Chocolate, which is derived from cocoa beans, contain antioxidants polyphenols, flavonoids, and tannins.  Polyphenols actually inhibit bacteria effects, which can decrease bad breath and lower risk of tooth decay.  Flavonoids have been shown to decrease rate of tooth decay.  And tannins have been shown to prevent bacteria from adhering onto teeth.  Dark chocolate is best, and try to choose chocolate that is at least 70% cocoa for optimal health and dental benefits.  
• Chewing gum can help lower risk of cavities by promoting salivary flow.  With a healthy and excess flow of saliva, it helps "wash" teeth of plaque and sugars.   Watch out for gums that contain large amounts of sugars.  Sugarless gum is a good alternative to consider.

October 31st is a great time for adults and kids alike. Be safe everyone, and feel free to ask your family dentist if you have any questions on sugars and oral health.

From your local family Bellevue dentist,
Dr. Peter Chien
www.bellevuefamilydentistry.com
(425) 614-1600