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article thumbnailFor Dentists: Community NewsThe Art of Functional Dentistry: Fundamentals of Occlusion and Equilibration by Neeraj Khanna,...

Friday, 03 November 2017 | charlieddm

The Art of Functional Dentistry: Fundamentals of Occlusion and Equilibration by Neeraj Khanna, B.Sc., DDSJanuary 19 - 21, 2018 at theUniversity of the Philippines ManilaCollege of Dentistry3 Day...
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article thumbnailFor Dentists: Community NewsPSP Quarterly Seminar

Monday, 30 October 2017 | charlieddm

Member, Philippine Society of Periodontology Pinoydental
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Ngipin atbp...Orig Pinoy Dental ArticlesAng Tamang Paggamit ng Antibiotics

charlieddm

Ang antibiotics ay gamot na ginagamit pangontra sa anumang impeksyon maging ito ay sa loob ng bibig o kahit sa anumang parte ng katawan.Madaming klaseng antibiotics na may iba't-ibang aksyon laban sa...
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Ngipin atbp...Orig Pinoy Dental ArticlesPart 1 of 7: Ano ang Kanser sa Bibig?

charlieddm

Ang kanser ng bibig ay parte ng grupo ng mga kanser na natatagpuan sa ulo at leeg. 85% ng mga ito ay mula sa kanser sa bibig. Araw-araw, isang tao kada isang oras ang namamatay dahil uri ng...
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Ngipin atbp...Orig Pinoy Dental ArticlesPangangalaga ng Ipin ng Diabetic by Dr. Ed Ofilada

charlieddm

Para sa karagdagang impormasyon, pumunta sa: www.projectoralhealth.orgAbout the Author:         EDMUND JULIAN L. OFILADA, D.M.D.     ...
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Ngipin atbp...Orig Pinoy Dental ArticlesPart 4 of 7: Ano ang Human Papilloma Virus?

charlieddm

Human Papilloma Virus (HPV) Ang Human Papilloma Virus (HPV) ay isang double-stranded DNA virus na maaaring magdulot ng impeksyon sa epithelial cells ng balat at ng bibig. Ang...
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Teeth Whitening (Bleaching) PDF Print E-mail

Tooth bleaching

Tooth bleaching, also known as tooth whitening, is a common procedure in general dentistry but most especially in the field of cosmetic dentistry. Many people consider white teeth to be an attractive feature of a smile. A child's deciduous teeth are generally whiter than the adult teeth that follow. As a person ages the adult teeth often become darker. This darkening is due to changes in the mineral structure of the tooth, as the enamel becomes less porous. Teeth can also become stained by bacterial pigments, foodstuffs and tobacco.

As white teeth are subconsciously associated with youth, they have become desirable. This has been made more apparent with the spread of American culture worldwide, where an especially white smile is coined a "Hollywood smile". The procedure to bleach teeth uses oxidising agents such as hydrogen peroxide or carbamide peroxide to lighten the shade of the tooth. The oxidising agent penetrates the porosities in the rod-like crystal structure of enamel and oxidises interprismatic stain deposits; over a period of time, the dentine layer, lying underneath the enamel, is also bleached.

Methods

There are two main methods of bleaching. The first involves applying a high concentration of oxidising agent for a short period of time, which is the so-called office bleach. This produces quick results but risks chemical burns to the soft tissues. Therefore, most in-office bleaching procedures use a light-cured protective layer that is carefully painted on the gums and papilla (the tips of the gums between the teeth). The bleaching agent is either carbamide peroxide, which breaks down in the mouth to form hydrogen peroxide, or hydrogen peroxide itself. The bleaching gel typically contains up to 35% hydrogen peroxide equivalent.

The alternative method involves using a thin mouthguard or strip to hold a low concentration of oxidising agent next to the teeth for as long as several hours a day for a period of 5 to 14 days. This is known as take-home or over-the-counter bleaching. This is a slower process but has fewer risks to the soft tissues. The bleaching agent is typically less than 10% hydrogen peroxide equivalent.

A typical course of bleaching can produce dramatic improvements in the cosmetic appearance of most stained teeth; however, some stains do not respond to bleaching. Tetracycline staining may require prolonged bleaching, as it takes longer for the bleach to reach the dentine layer. White-spot decalcifications may also be highlighted and become more noticeable. Bleaching is least effective if your teeth have white spots, decay or infected gums. It is also least effective when the original tooth color is grayish. Bleaching is most effective with yellow discolored teeth.

Recently, efforts have been made to accelerate the bleaching process by the use of light. Studies have shown varying results as to the efficacy of light-activated bleaching.

Side effects of tooth bleaching include: chemical burns (if a high-concentration oxidising agent contacts unprotected tissues, which may bleach or discolor mucous membranes), sensitive teeth, and overbleaching (known in the profession as "over white teeth"). Rebound, or teeth losing the bleached effect and darkening, is also an issue, with some studies showing the rebound effect over 30 days. A recent study by Kugel et al has shown that as much as 4 shades of lightness can be lost over 30 days with light-activated/office bleaching.

 

Risks

The two side effects that occur most often are a temporary increase in tooth sensitivity and mild irritation of the soft tissues of the mouth, particularly the gums. Tooth sensitivity often occurs during early stages of the bleaching treatment. Tissue irritation most commonly results from an ill-fitting mouthpiece tray rather than the tooth-bleaching agent. Both of these conditions usually are temporary and disappear within 1 to 3 days of stopping or completing treatment.

Individuals with sensitive teeth and gums, receding gums and/or defective restorations should consult with their dentist prior to using a tooth whitening system. Anyone allergic to peroxide (the whitening agent) should not use a bleaching product.

Bleaching is not recommended in children under the age of 16. This is because the pulp chamber, or nerve of the tooth, is enlarged until this age. Teeth whitening under this condition could irritate the pulp or cause it to become sensitive. Teeth whitening is also not recommended in pregnant or lactating women.

 

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Dentist Community News
article thumbnailFor Dentists: Community NewsThe Art of Functional Dentistry: Fundamentals of Occlusion and Equilibration by Neeraj Khanna,...

Friday, 03 November 2017 | charlieddm

The Art of Functional Dentistry: Fundamentals of Occlusion and Equilibration by Neeraj Khanna, B.Sc., DDSJanuary 19 - 21, 2018 at theUniversity of the Philippines ManilaCollege of Dentistry3 Day...
Read more...

article thumbnailFor Dentists: Community NewsPSP Quarterly Seminar

Monday, 30 October 2017 | charlieddm

Member, Philippine Society of Periodontology Pinoydental
Read more...

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Dental Health News for the General Public
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Ngipin atbp...Orig Pinoy Dental ArticlesPart 3 of 7: Tabako at Kanser sa Bibig

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Sa susunod na oras, 50 na katao ang mamamatay dahil sa paninigarilyo. Itinuturing na sanhi ng halos 25 na sakit ang sigarilyo, habang ang naidudulot nito sa kalusugan ay natukoy na, ang epekto nito...
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Ngipin atbp...Orig Pinoy Dental ArticlesIsumbong ang mga Pekeng Dentista

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Ang (PDA) Philippine Dental Association ay ang tanging kinikilala at pangunahing organisasyon o lupon ng mga lisensyadong dentista sa Pilipinas. Isa sa mga layunin ng organisasyong ito ay mabigyan ng...
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Ngipin atbp...Orig Pinoy Dental ArticlesPart 3 of 7: Tabako at Kanser sa Bibig

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Sa susunod na oras, 50 na katao ang mamamatay dahil sa paninigarilyo. Itinuturing na sanhi ng halos 25 na sakit ang sigarilyo, habang ang naidudulot nito sa kalusugan ay natukoy na, ang epekto nito...
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PROFESSIONAL DENTAL CARE AND TREATMENTS

 
 
  1. Teeth whitening
  2. Dental Fillings (Pasta)
  3. Oral Prophylaxis or dental cleaning (Pagpapalinis ng ngipin)
  4. Gum treatment
  5. Wisdom Teeth Removal (Pagpapabunot ng wisdom tooth)
  6. Root Canal
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  DENTAL HOME CARE PRODUCTS  
 
  1. Electric Toothbrushes
  2. Water Picks
  3. Dental Flosses
  4. Toothpastes
  5. Manual Toothbrushes
  6. Breath Sprays
  7. Teeth Whitening gels and pastes
  8. Cold Sore Ointments
  9. Sugarless Chewing Gums
  10. Breath Freshening mints and candies
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