You can’t grow your natural teeth larger, but several dental procedures can add real size to teeth that look too short, too narrow, or worn down. The right approach depends on why your teeth appear small in the first place: the teeth themselves may be undersized, your gums may cover too much of the tooth surface, or years of grinding may have shortened them. Each cause has a different fix.
Why Teeth Look Small
Before choosing a procedure, it helps to understand what’s actually going on. Sometimes the teeth are genuinely smaller than average, a condition called microdontia. Localized microdontia affects just one or two teeth, most commonly the upper lateral incisors (the ones flanking your two front teeth). True generalized microdontia, where all teeth are small, is rarer and often linked to genetic conditions like Down syndrome or ectodermal dysplasia, hormonal issues like hypothyroidism, or nutritional deficiencies in vitamins A, C, or D during development. Premature birth can also result in smaller teeth due to incomplete dental development.
In other cases, the teeth are normal-sized but the gums sit too low on the crown, creating a “gummy smile” that makes the visible portion of each tooth look short and square. And for many adults, the issue isn’t the original size at all. Years of grinding (bruxism) gradually wear down the biting edges, making teeth visibly shorter over time.
Porcelain Veneers
Porcelain veneers are the most popular way to permanently increase tooth size. They’re thin shells of ceramic bonded to the front surface of your teeth, and they can add both length and width. The dentist removes a thin layer of enamel, typically 0.4 to 0.7 mm, to make room for the veneer. When extra length is needed, the veneer wraps over the biting edge and extends slightly onto the back of the tooth, with about 0.5 to 2 mm of incisal reduction depending on the design.
Porcelain veneers cost between $900 and $2,500 per tooth. A full set covering 20 visible teeth can run from $10,000 to $50,000 depending on materials, location, and the dentist’s experience. That’s a significant investment, but porcelain veneers last 10 to 15 years on average, and some studies have documented them holding up for 20 years. They resist staining better than natural enamel, and the color and translucency closely mimic real teeth.
The tradeoff is that the process is irreversible. Once enamel is removed to fit the veneer, you’ll always need some type of restoration on that tooth. You’ll also need replacements eventually, so the long-term cost is higher than the initial price tag suggests.
Composite Bonding
Composite bonding uses tooth-colored resin applied directly to the tooth surface and sculpted by hand. It’s a less invasive alternative to veneers because little or no enamel needs to be removed. A dentist can build up a chipped edge, widen a narrow tooth, or close gaps between teeth in a single appointment.
Composite bonding costs between $250 and $1,500 per tooth, making it the most affordable option for adding size. The downside is durability. Composite typically lasts 5 to 7 years before it needs repair or replacement, and it’s more prone to staining and chipping than porcelain. For someone who wants to test a new tooth shape before committing to veneers, bonding works well as a reversible preview.
Gum Contouring
If your teeth are actually a normal length but your gum tissue covers too much of the crown, gum contouring can expose more tooth surface and make your smile look dramatically different without touching the teeth at all. A dentist or periodontist uses a laser or surgical tool to reshape the gum line, removing excess tissue to reveal the hidden portion of each tooth.
Recovery is quick. Most people heal within a week. During that time, you’ll want to stick to soft foods like eggs, yogurt, pasta, and smoothies, and avoid anything hard, crunchy, or spicy. Soreness is mild for most patients. The results are permanent because gum tissue doesn’t typically grow back to its original position after contouring.
Gum contouring is sometimes combined with veneers or bonding for a more complete transformation. Reshaping the gums first gives the dentist more tooth surface to work with and creates a more balanced proportion between tooth and gum.
Dental Crowns for Severely Worn Teeth
When grinding has worn teeth down significantly, veneers alone may not provide enough structural support. Crowns cover the entire tooth rather than just the front surface, restoring both the original height and the ability to bite and chew normally. Crowns require more enamel removal than veneers, but for teeth that have already lost substantial structure to wear, they’re often the more practical choice. Porcelain and ceramic crowns can be color-matched to surrounding teeth, so the result still looks natural.
Preventing Further Tooth Loss
If grinding is what shortened your teeth in the first place, any cosmetic work you invest in is at risk unless you address the underlying habit. A custom night guard worn during sleep won’t stop the grinding itself, but it prevents your teeth from making direct contact. There’s a strong professional consensus that occlusal splints protect both teeth and surrounding tissues from the damaging effects of prolonged clenching and grinding forces. The guard absorbs the pressure instead of your enamel.
A night guard is especially important after getting veneers or crowns, since grinding can crack or dislodge restorations. Your dentist can make a custom-fitted guard from an impression of your teeth, which tends to be more comfortable and effective than over-the-counter options.
Choosing the Right Option
- Teeth are naturally small: Porcelain veneers or composite bonding can add both length and width. Veneers offer the most dramatic, longest-lasting change.
- Gums cover too much tooth: Gum contouring alone may be enough. If the exposed teeth still look small afterward, bonding or veneers can be added.
- Teeth are worn from grinding: Crowns or veneers restore lost height. A night guard is essential to protect the investment.
- Budget is a concern: Composite bonding at $250 to $1,500 per tooth is the most accessible starting point, though it will need replacement sooner than porcelain.
A cosmetic dentist can take measurements, evaluate your bite, and show you digital mock-ups of how different options would change your smile before you commit to anything. Many offer this consultation as the first step, giving you a chance to compare results side by side before any work begins.