A beautiful smile and white teeth are one of the main criteria of beauty and attractiveness in today's society.. But various factors such as tea, coffee, smoking, ageing, and even some foods can change the color of teeth.. That's why many people are looking for ways to restore the natural whiteness of their teeth.. Their long-term results.... Types of tooth stains For effective teeth whitening, you need to choose a whitening method that responds to the type of stains on your teeth. If you have both internal and external stains (described below), you should probably choose a method that safely removes both types of stains. Stains that are located inside the enamel are known as internal stains. These stains can be caused by using Antibiotics, exposure to high levels of fluoride and thinning of tooth enamel with age.. According to a 2014 study, you should know.. dental laminate #### 2.... External spots External stains are located on the outer surface of the teeth.. These types of stains are caused by exposure to environmental factors that change the color of the tooth enamel.. Coffee, artificial food colors and cigarettes can cause these types of stains.. According to research by White Dentistry in 2014, similar to internal stains, external stains can also be related to the use of antibiotics.. ### 1... Teeth bleaching: - In this method, the dentist uses whitening gels with a higher concentration than household products, which usually contain hydrogen peroxide. The gel is applied to the teeth and in some cases it may be activated with a laser or special light. > Power bleaching in the dental office involves washing the teeth with a strong hydrogen peroxide solution for 20 to 30 minutes.. > > **Persian translation:** > > Strong bleaching in the dental office includes washing the teeth with a strong solution of hydrogen peroxide for 20 to 30 minutes... ### 2... laser whitening: This method involves the use of a strong whitening gel that is activated by laser light. This light helps the whitening material to penetrate deep into the stains and give faster results. This method is suitable for people who need immediate whitening of the teeth, but it is more expensive than the bleaching method. They have.... The results and whitening in this method are definite and stable.... This method also has restorative properties and if your teeth are not uniform or there is a gap between them, they can be fixed with special composite materials.... The durability of composite #8 to white enamel is between 5 years.. Teeth: Laminates are more resistant than composites, and it is one of the best ways to restore and whiten teeth, which has a very natural appearance... The main difference between laminates and composites is that most of the tooth enamel is shaved off in laminates. Laminates last between 5 and 15 years, which can last longer if taken care of... Baking soda has natural whitening properties and is therefore one of the most popular ingredients in commercial toothpastes. It is a mild abrasive that can help remove surface stains on the teeth. In addition, baking soda creates an alkaline environment in the mouth that prevents bacteria from growing. One study found that toothpastes containing baking soda were significantly more effective in reducing plaque, gingivitis, and bleeding than regular toothpastes without baking soda. are... > > Farsi translation: > > A study showed that toothpastes containing baking soda are significantly more effective than regular toothpastes without baking soda in reducing plaque, gingivitis and bleeding.. ### 2.... Teeth whitening with vegetable oils Oil pulling is a traditional treatment that has its roots in India and is used to improve oral and dental health and remove toxins from the body. This method involves swishing the oil around in the mouth to kill bacteria that can turn into plaque and cause yellowing of the teeth. It is known to kill bacteria and inflammation. Strep mutans is one of the main types of bacteria in the mouth that causes plaque and gingivitis. Disinfectant is effective.. 15-20 minutes....Unlike many teeth whitening methods, brushing with coconut oil does not expose teeth to acids or other substances that damage tooth enamel....This means it is safe to do daily... ### 3...Using hydrogen peroxide to whiten teeth **Hydrogen peroxide is a natural whitening agent that also destroys oral bacteria.** While very diluted concentrations appear to be safe, stronger concentrations or overuse can cause gum irritation and tooth sensitivity. There are also concerns that high doses may cause cancer, but this has yet to be proven. One way is to use hydrogen peroxide as a mouthwash before brushing. The most common concentration of hydrogen peroxide in pharmacies is a 3% solution.. You can dilute this concentration to 1.5% by mixing equal amounts of peroxide and water.. Another way to use hydrogen peroxide is to mix it with baking soda to make toothpaste... Brush your teeth gently.. Text: > > The study showed that toothpaste containing hydrogen peroxide is more effective than other types of toothpaste - including toothpaste containing charcoal and abrasive - in reducing tooth discoloration caused by coffee. > Farsi translation: > > Another study showed that toothpaste containing hydrogen peroxide was more effective than other toothpastes - including toothpastes containing charcoal and abrasives - in reducing tooth discoloration caused by coffee. > Source: ncbi site ### 4 .... Teeth whitening with banana peel The inner part of the banana peel is rich in minerals such as potassium and magnesium, which can penetrate the tooth enamel and help to whiten it.. To use this method, after brushing and flossing, peel a fresh banana and gently rub the inside of your teeth for 2 minutes... Then brush your teeth for an hour and drink again... By repeating this, you will see the results after about two weeks... ### 5... Teeth whitening with strawberries Whitening teeth with a mixture of strawberries and baking soda is a natural method popularized by celebrities. Proponents of this method claim that the malic acid in strawberries fades tooth discoloration, while baking soda removes stains. But this method is not completely scientifically proven. a lot it can damage the teeth....to use this method, chop a fresh strawberry and mix it with baking soda and apply the mixture on your teeth....some activated charcoal from the pharmacy....then put a little bit of it on your wet toothbrush and brush your teeth for about 2 minutes....repeating this method 2-3 times a week can help whiten your teeth....note that this method is for people who have laminate or dental veneers they use, it is not suitable and it will not have a great effect on the whitening of this type of teeth.... ### 7.... using teeth whitening method Due to its anti-inflammatory and antimicrobial properties, turmeric is a good choice for teeth care and also a natural method for whitening teeth at home. If you plan to use this substance to whiten your yellow teeth, you can use one of the following two methods: > Read more: How long does teeth bleaching last? 1... Put some turmeric like toothpaste on the toothbrush and brush for 5 minutes.... 2... Make a thick paste with the combination of turmeric and coconut oil in a ratio of 2:1 and brush with it to help whiten the teeth... Side effects and possible risks of teeth whitening - **Teeth sensitivity:** One of the most common side effects of teeth whitening is the sensitivity of teeth to cold, heat, sweets and acidic foods... This sensitivity is usually caused by the penetration of whitening agents into the tooth enamel and nerve irritation. Excessive whitening agents, especially those containing sensitive ingredients, may cause further erosion of the outer parts of the teeth over time. The tooth may become more or less white... - **Complications in restored teeth:** Teeth whitening methods do not affect laminate, veneer, filling and other tooth restorations and may cause a difference in the color of natural and restored teeth.. Internal color change... > Read about the dental denervation center in Pasdaran, Tehran. ### Care after teeth whitening Avoid colored foods and drinks for 48 hours - Regular brushing and flossing - Using toothpaste for sensitive teeth - Eating non-colored and non-acidic foods - Drinking a lot of water **Final Notes** Teeth whitening is one of the popular methods to improve the beauty and increase self-confidence in the smile... Despite the variety of methods, from professional techniques in the dental office to home solutions, choosing the most appropriate method should be done according to individual needs and consultation with the dentist... Although the results of these methods can be stunning, post-whitening care plays a key role in maintaining the acidity of the teeth and maintaining the health of the teeth. Going to the dentist can help maintain the results and prevent possible complications. Finally, an informed and responsible choice in the field of teeth whitening ensures the long-term health and beauty of your teeth.