For stained or discoloured teeth, bleaching teeth whitening can lighten teeth that have not responded sufficiently to professional cleaning. It is a safe procedure when done by a qualified dentist. Bleaching may not be appropriate in people who have oral symptoms of some diseases.Your dentist will take an impression of your teeth so that a custom-made mouth tray can be made. This holds the bleaching gel close to your teeth. The gums do not normally come into contact with the bleach.
Wearing the tray for 30 minutes every day for 5 days will gradually lighten the teeth. Some bleaching agents can be used all night. Although this may case irritation of gums and the mouth in some people. Most mouth trays are light enough to permit talking and walking with them in place. Good results usually occur immediately after the process. The daily bleaching process can be continued until you are happy with the appearance of your teeth. However, it is not always possible to achieve white teeth. Your dentist will advise you on how long you should use the mouth tray each day and duration of the overall treatment.
Follow – up during and after bleaching
See your dentist periodically while you are using the dental tray. The health of your gums can be checked during this visit. Any irritation that occurs is usually minor and settles once the treatment ceases. When the lightening process has finished, you can keep the teeth white by bleaching them regularly for short time.
Advantages of bleaching
Bleaching is ideal for undamaged teeth that only need lightening in colour.
Once the custom-made try has been fitted, you are able to do the bleaching at home, and the tray can be re-used later.
The upper and lower teeth can be bleached.
Approved tooth-bleaching products are safe to use.
Disadvantages of bleaching
Care needs to be taken so that the bleach does not come into prolonged contact with the gums. This may case short-term irritation or burning.
If your teeth are very sensitive, or if you have gum disease or worn teeth, bleaching may not be suitable.
Some over-the-counter preparations are very abrasive, and although they work in the short term, they can damage teeth over the long term. Dentists do not recommend these treatments.
Some white fillings may need to be replaced after bleaching.
Composite resins are tooth-colored materials that can actually be applied to the remaining surfaces of teeth to replace lost tooth structure in such a way as to actually make them one, blending and exactly matching the physical characteristics and color of natural teeth, and actually strengthening them in the process. Most importantly, modern composites physically adhere by actually bonding to the two elements that teeth are composed of, dentin and enamel. Major advances have resulted from the study and understanding of how the crowns of teeth actually flex or give under biting force and how restorative materials can be used to the greatest effect in the way they interact. And, best yet, composites can be used to restore teeth directly — they are applied directly to the teeth in the dental office in a single appointment.
Composite resins have been advocated for decades as a means to conservatively restore minor, moderate, and even large defects in teeth caused by decay or trauma. Their indication is predicated on the need to preserve as much healthy tooth structure as possible while using these synthetic composite resin materials to completely replace and augment lost tooth structure by adhesive dentistry. The challenges involved in retaining such restorations have been resolved by bonding, the implementation of sound adhesive dental techniques,
Today’s composite resins allow restorations to replace moderate loss of tooth structure in such a way as to avoid further tooth removal.
Although 20 years ago it appeared that weaknesses in direct composite bonding involved the composite material itself, manufacturers have made vast improvements to the formulations of direct composites that have resulted in enhancements to their strength, aesthetics, and reliability.
Composite restorations generally are one-step “single-visit” procedures, carried out at the Dental and Facial Clinic by Dr Chad Hazouri. Direct composite resin restorations require technique and artistic skill to place them. They are commonly indicated for trauma to the front teeth in which portions of the enamel, or enamel and dentin of the teeth, are broken or chipped. They are most often used to restore decayed areas of the front teeth where they contact each other. They can be used to reshape teeth for closing small spaces and correcting other minor irregularities of tooth position. Composite resins are often used to repair trauma to the front teeth of younger individuals involved in contact or other sports where there is continuing risk of injury and until the person is older and the teeth more mature. In these situations, composites may have more limited longevity. In addition to wear, they may also discolor over time. When appropriate, more permanent restorations can be planned and fabricated to replace restorations that have aged and no longer appear aesthetically pleasing or have otherwise become defective.
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