Real cases from our clinic
Patients of Dr Haim Aseriel, photographed at the clinic and shared with their consent. Drag the line across the photo to compare.
Damaged enamel restored with nano-composite
- Real patients of the clinic
- Published with patient consent
- Every result is individual
What causes white spots on teeth?
White spots on teeth are mainly caused by hypomineralization of the enamel: areas of enamel that lack calcium and other essential minerals. This can happen while the tooth is developing, when the enamel-forming cells do not produce a fully mineralized structure. The altered enamel reflects light differently, so it shows up as white dots or streaks on the surface of the tooth. In some cases, the incomplete mineralization comes from too much fluoride while the teeth were forming, a condition known as dental fluorosis.
An injury to a baby tooth can also disturb the development of the permanent tooth growing underneath, especially the upper front teeth: when the permanent tooth comes in, it may have a white or even yellowish spot. Severe infections in early childhood can affect enamel quality as well. Some medications given at a young age, especially tetracyclines, can change the color of the enamel, although they do not usually cause typical white spots.
White spots along the gumline or around orthodontic brackets are often an early sign of tooth decay, caused by acids from bacteria and still reversible at this stage.
White spots and other stains on teeth
Not all stains on teeth are white. Yellow or brown discoloration usually comes from coffee, tea, smoking or aging (see yellow teeth), while dark or black spots can point to tartar, decay or a damaged nerve (see black stains on teeth). White spots are different: they are a problem of the enamel's mineral content, not of pigment, which is why ordinary whitening is not the first answer.
White spots on children's teeth
In children, white spots often come from enamel hypoplasia, when the enamel did not develop properly before birth or in the first years of life.
General factors such as high fever in early childhood, infectious illnesses, nutritional deficiencies during pregnancy or early childhood, and even premature birth can disturb normal enamel formation.
Molar-incisor hypomineralization (MIH) is a common example: spots appear on the first permanent molars and on the front incisors, reflecting a disturbance during a critical period of mineralization between birth and about age three.
Treating white spots in children has to be adapted to the stage of tooth development and to how severe the condition is. In mild cases, regular monitoring and prevention are recommended: fluoride varnish applied at the clinic, brushing with a fluoride toothpaste in the amount suited to the child's age, and sometimes a casein phosphopeptide-amorphous calcium phosphate (CPP-ACP) paste. The goal is to support natural remineralization and lower the risk of decay in the fragile enamel. In more severe cases, microabrasion or minimally invasive cosmetic restorations may be considered.
White spots on teeth: what to do?
1. An accurate diagnosis
Treatment starts with identifying the underlying cause and assessing how much the enamel is affected. This involves a careful clinical examination, sometimes with close-up photographs or light shone through the tooth (transillumination) to reveal changes that are hard to see with the naked eye. Telling developmental white spots apart from spots caused by ongoing demineralization determines the treatment strategy.
2. Remineralization
Once the diagnosis is made, the treatment plan takes into account your age, where the spots are, how extensive they are and what you expect cosmetically. Remineralization is the preferred conservative approach, especially when the spot is an early sign of demineralization. Besides fluoride, products containing calcium sodium phosphosilicate, a bioactive glass designed to help return minerals to the tooth, can be used under your dentist's guidance. At the same time, a thorough cleaning and removal of tartar on teeth prevents the plaque build-up that speeds up demineralization.
3. Microabrasion
When spots do not respond to conservative treatment, or when they are a real cosmetic concern, minimally invasive treatments are considered. Microabrasion gently removes a very thin layer of enamel containing the spots, using a low-concentration acid combined with a mild abrasive. It works especially well for surface spots and mild to moderate fluorosis, and preserves as much natural tooth structure as possible.
Can white spots on teeth be prevented?
Preventing white spots takes a broad approach that starts during pregnancy and continues throughout tooth development. A balanced diet during pregnancy, with enough calcium, vitamin D and phosphorus, supports normal development of the teeth; talk to your doctor about your needs. Preventing infections in early childhood, including through recommended vaccinations, lowers the risk of enamel defects, and medications known to affect enamel, such as tetracyclines, are avoided during these critical periods when possible.
The right amount of fluoride
Fluoride in the right amount is essential to prevent decay and strengthen enamel, but too much while the teeth are forming can cause fluorosis and white spots. From the first tooth until age 3, use a smear of fluoride toothpaste the size of a grain of rice; from age 3 to 6, a pea-sized amount, with an adult supervising, and spit the toothpaste out rather than swallowing it. Fluoride supplements (drops or tablets) are given by prescription only, to children at high risk of decay, as decided by the doctor or dentist. Do not give your child fluoride supplements on your own: combining several sources of fluoride at a young age is what raises the risk of fluorosis.
Excellent oral hygiene
Good oral hygiene is the mainstay of preventing white spots caused by demineralization. Brush twice a day for two minutes, focusing on the gumline and the chewing surfaces, and floss as soon as two teeth touch, since spots often start between the teeth. How often you need check-ups depends on your oral health and personal risk of decay and gum disease: for many people every six months, for others more or less often, as your dentist recommends.
Removing white spots from teeth
When white spots are to be removed, the approach depends mainly on how deep the spot is and how well mineralized the surrounding enamel is.
Resin infiltration
Resin infiltration is a minimally invasive technique in which a very fluid resin penetrates the porous enamel. After the surface layer is prepared with an acidic gel and dried, the resin fills the pores of the enamel and changes the way it reflects light, so the spot blends in with the surrounding tooth, without drilling away healthy tooth structure.
A combined approach
For deeper or more extensive spots, a combination may be needed: microabrasion to remove the surface layers of affected enamel, followed by intensive remineralization. The depth removed is carefully controlled and stays very shallow to keep the tooth strong. Several sessions are sometimes needed, especially for old, deep spots.
Restorative treatment
When spots do not respond to conservative treatment, or when the enamel is significantly damaged, restorative options such as veneers or ceramic crowns may be considered. Modern ceramics are designed to mimic the physical and optical properties of natural enamel and dentin.
The treatment is planned at the clinic with a digital intraoral scan and a computer simulation that shows you the expected result before treatment starts; the options are explained in English. These treatments preserve as much healthy tooth structure as possible while giving a lasting cosmetic and functional result.
Examination, treatment plan and price quote
detailed and personalized
During the consultation, Dr Haim Aseriel examines your teeth, explains all the options and gives you a transparent price quote, with no obligation. The clinic is at 12 HaTnufa Street, Jerusalem.
Treatment options for white spots on teeth
Treating white spots follows the principle of minimal intervention: preserve tissue and restore the tooth's natural function with as little drilling as possible. Treatment always starts with the least invasive option, active remineralization.
This protocol combines a CPP-ACP paste with fluoride, fluoride varnish applied at the clinic, and gels or toothpastes containing calcium sodium phosphosilicate at home. You are shown how to apply them according to the product instructions, often at night after brushing, without rinsing straight afterwards.
When conservative treatment is not enough, minimally invasive techniques come next. Teeth whitening can help in some cases, especially when the spots are linked to subtle color differences. Tooth sensitivity is assessed first, and desensitizing products are used when needed. Whitening may make white spots more noticeable at first, but the color usually evens out as treatment progresses.
For more complex cases, microabrasion can be combined with macroabrasion: very fine instruments with a mild abrasive remove extremely thin layers of enamel precisely. The tooth is then professionally polished to restore its natural shine. If traces of the spot remain after microabrasion, resin infiltration can complete the treatment.
For very extensive or deep spots, thin ceramic veneers, for example in lithium disilicate (see E.max veneers), offer a cosmetic solution while preserving as much tooth structure as possible. They are common in cosmetic dentistry. Digital smile design lets you preview the expected result and take part in the decision. Tooth preparation is kept as conservative as possible.
Preventing new stains on teeth after treatment
After successful treatment, the focus moves to preventing new spots and keeping the result over the long term.
01
A maintenance plan
Regular visits, at a frequency set by your risk of decay and your dentist's advice, include a thorough professional cleaning, remineralization treatments and checks for early signs of new demineralization. Fluoride or CPP-ACP products, as your dentist recommends, are part of the daily routine for people at high risk of decay.
02
Diet
Limit acidic foods and drinks such as soft drinks, sweetened fruit juices, energy drinks and wine, which lower the pH in the mouth. Drink acidic beverages through a straw and rinse with water afterwards. According to the ADA, wait about an hour before brushing after acidic food, so saliva can neutralize the acid and the enamel can harden again.
03
Oral hygiene
Brushing technique matters as much as frequency: angle the brush toward the gumline, where demineralization often begins. An electric toothbrush with a pressure sensor and timer helps brush effectively and gently, and an alcohol-free mouthwash with fluoride completes the routine.
White spots after teeth whitening
White spots that appear after whitening are fairly common and temporary, mostly because the enamel dries out during treatment. They usually fade as the tooth rehydrates. A spot that does not fade, or a spot that was already there and has become more visible, should be shown to your dentist to decide whether further treatment is needed.
Consultations are held in English at 12 HaTnufa Street in Talpiot, south Jerusalem; hours: Sun 8:00–19:00 · Mon 9:00–19:00 · Tue–Wed 9:00–21:00 · Thu 8:30–21:00 · Fri 8:00–14:00. Read patient reviews or learn more about Dr Haim Aseriel.
White spots on teeth: frequently asked questions
A white spot that is an early sign of decay can improve, because at this stage the process can still be reversed with fluoride, careful oral hygiene and a diet low in sugar and acids. Spots that formed while the tooth was developing, such as fluorosis or hypomineralization, do not go away on their own, but they can be treated at the clinic according to their depth.
A white spot on a tooth can be an early sign of decay: these "white spot lesions" show an area where the enamel has started to lose minerals. At this stage the process can still be reversed with remineralization (fluoride, good oral hygiene and diet), unlike advanced decay that has already reached deeper into the tooth.
In children, white spots often come from enamel hypoplasia or hypomineralization, when the enamel did not develop properly before birth or in the first years of life. High fever in early childhood, infections, nutritional deficiencies during pregnancy or early childhood, and even premature birth can all disturb enamel formation.
Plaque builds up easily around the brackets of braces, and the acids produced by bacteria draw minerals out of the enamel, leaving white spots. To prevent them, brush thoroughly with a fluoride toothpaste during treatment, especially around the brackets and along the gumline, and keep regular check-ups; spots that have already formed should be examined by your dentist.
Teeth whitening can make white spots more noticeable at first, but as treatment progresses the color usually evens out. White spots appearing right after whitening are fairly common and temporary, mostly because the enamel dries out during treatment; a spot that does not fade should be shown to your dentist.
Sources
- ADA Council on Scientific Affairs, Journal of the American Dental Association, 2014 – View the study
- Rozier RG et al., Journal of the American Dental Association, 2010 – View the study
- Fee PA et al., Cochrane Database of Systematic Reviews, 2020 – View the study
- ADA MouthHealthy, Dietary Acids and Your Teeth – View the page
