These two often get lumped together as ways to a nicer smile, but they solve different problems. Whitening lifts the colour of your natural teeth. Bonding reshapes them with tooth coloured resin to fix chips, gaps and small imperfections. Many people actually do both, and in a particular order. Here is an honest look at how they really differ.
Figures and timings are indicative and vary by individual, the number of teeth and the practice. A qualified dentist should assess your teeth and gums before recommending either.
If your concern is shape rather than colour, a chipped edge, a small gap or teeth that look worn, bonding can reshape them in a single visit with little or no enamel removed. It is a gentler, less costly step than veneers and is reversible in many cases. The resin is not as stain resistant or hard wearing as porcelain, though, so it asks for good care and an occasional refresh.
If your teeth are well shaped but dull or stained, professional whitening lifts the shade with no change to form and no downtime beyond brief sensitivity. It is the most affordable place to start for many people. It only works on natural tooth enamel, so existing bonding, crowns or veneers will not lighten, which is exactly why dentists usually whiten first and match any new work to the brighter shade afterwards.
Healthy teeth and gums come before any cosmetic work.
If there is decay, gum disease or untreated sensitivity, those need addressing before whitening or bonding. Whitening is not suitable during pregnancy or for very young teeth, and it should only ever be carried out or supervised by a registered dental professional, never by a non dental salon. A good dentist will sometimes tell you your smile needs nothing at all, or that a simple clean and polish is enough.
Composite bonding and teeth whitening are dental treatments. This comparison is general information, not dental advice, and any figures are indicative only. A registered dentist who has examined you should confirm which approach, if any, suits your teeth and gums, and what it will cost. By law, tooth whitening must be carried out or supervised by a registered dental professional. Results vary and are never guaranteed.
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