Why Do I Have A Gap Between My Two Front Teeth

Learn about the causes of and solutions for front teeth gaps at Kanata South Dental. Discover the durability and color-matching capabilities of dental bonding with composite resin for a natural-looking smile.

Why Do I Have A Gap Between My Two Front Teeth

There can be several reasons for having a gap between your two front teeth, also known as a diastema:

  • Genetics: Sometimes, it's simply inherited. Some people have a natural gap between their front teeth due to the size of their teeth or the size of their jawbone.
  • Missing Teeth: If you have lost one or more teeth, it can cause the remaining teeth to shift, creating gaps.
  • Gum Disease: Periodontal (gum) disease can cause the supporting tissue and bone structure of your teeth to deteriorate, leading to tooth mobility and eventually gaps between teeth.
  • Habits: Certain oral habits like thumb sucking during childhood can cause the front teeth to push forward, creating a gap.
  • Mismatched Teeth and Jaw Size: Sometimes, the size of your teeth may not be proportionate to the size of your jawbone, resulting in gaps.
  • Oversized Labial Frenum: The tissue that extends from the inside of your upper lip to the gum above your upper front teeth (labial frenum) can sometimes be oversized and extend down between the two front teeth, causing a gap.

If you're concerned about the gap or if it's causing any issues, it's a good idea to consult with a dentist or orthodontist who can provide you with personalized advice and treatment options.


The solution to decreasing the gap between your teeth depends on the underlying cause and your personal preferences. Here are some common options:

  • Orthodontic Treatment: If the gap is due to misalignment or overcrowding of teeth, orthodontic treatment such as braces or clear aligners (like Invisalign) can gradually move the teeth into the desired position, closing the gap.
  • Dental Bonding: Dental bonding involves applying a tooth-colored resin material to the teeth to reshape them and close the gap. This is a relatively quick and non-invasive option.
  • Porcelain Veneers: Veneers are thin shells of porcelain that are bonded to the front surface of the teeth to improve their appearance. They can be used to close gaps, reshape teeth, and improve overall aesthetics.
  • Dental Crowns: If the gap is caused by missing teeth or large gaps that cannot be closed with orthodontic treatment alone, dental crowns or bridges may be recommended to fill in the space.
  • Frenectomy: If the gap is caused by an oversized labial frenum (the tissue between the upper front teeth), a frenectomy procedure may be performed to remove or reposition the excess tissue.
  • Retainers: After orthodontic treatment, wearing a retainer as prescribed by your orthodontist can help maintain the results and prevent the gap from reappearing.

It's important to consult with a dentist or orthodontist to determine the most appropriate treatment option for your specific case. They can evaluate your oral health, discuss your goals, and recommend the best course of action.


Dental bonding, which is a tooth-colored resin material applied to the teeth to reshape them or close gaps, is generally durable but may not last as long as other dental restorations like porcelain veneers or crowns. The longevity of dental bonding can vary depending on several factors:

  • Location: Bonding materials on front teeth, especially those used to close gaps, may be more prone to wear and tear due to the forces of biting and chewing.
  • Oral Habits: Certain habits like biting nails, chewing ice, or using teeth to open packages can increase the risk of chipping or wearing down the bonding material.
  • Maintenance: Good oral hygiene practices, such as regular brushing, flossing, and avoiding excessive consumption of staining foods and beverages, can help prolong the lifespan of dental bonding.
  • Material Quality: The quality of the bonding material used and the skill of the dentist performing the procedure can affect the longevity of the bonding.
  • Wear and Tear: Over time, dental bonding may need to be repaired or replaced due to normal wear and tear or changes in the shape of the teeth.

On average, dental bonding can last anywhere from 3 to 10 years or more with proper care. However, individual experiences may vary. If you're considering dental bonding to close gaps between your teeth, it's important to discuss the expected lifespan and maintenance with your dentist so you can make an informed decision. They can also provide guidance on how to care for your bonded teeth to maximize their longevity.


Yes, composite bonding can be matched to the color of your natural teeth. Composite resin, the material used in dental bonding, comes in a variety of shades that can be customized to closely match the colour of your existing teeth. Your dentist will select the shade of composite resin that most closely resembles your natural tooth color to ensure a seamless blend and a natural-looking result.

During the bonding procedure, the dentist will apply the composite resin to your teeth and carefully shape and sculpt it to achieve the desired appearance. They will then use special lights to harden the resin, and finally, polish it to a smooth finish. When done properly, composite bonding can provide an aesthetically pleasing result that blends in seamlessly with your natural teeth.

Keep in mind that while composite bonding can be matched to your teeth color, the color stability of the bonding material may be affected by factors such as staining from food, beverages, and tobacco use over time. Additionally, composite bonding may need periodic maintenance or replacement due to wear and tear or changes in tooth color over time. Your dentist can provide guidance on how to care for your bonded teeth and maximize their longevity and appearance.


Tooth-colored composite resin is a dental material commonly used for various restorative and cosmetic dental procedures. It's a type of synthetic material made of a mixture of plastic and fine glass particles, which gives it its tooth-like appearance and translucency. Composite resin comes in a variety of shades and can be customized to match the natural colour of your teeth, making it an ideal choice for filling cavities, repairing chipped or broken teeth, reshaping teeth, and closing gaps between teeth.

Here are some key features of tooth-coloured composite resin:

  • Aesthetic Appearance: Composite resin closely mimics the appearance of natural tooth enamel, making it an excellent choice for restorations in visible areas of the mouth.
  • Versatility: Composite resin can be used for both front and back teeth and can be bonded directly to the tooth structure, allowing for conservative treatment options.
  • Color Matching: Dentists can select the shade of composite resin that best matches the color of your natural teeth, ensuring a seamless blend and a natural-looking result.
  • Bonding Properties: Composite resin bonds chemically to the tooth structure, providing strength and support while also helping to minimize the risk of leakage or recurrent decay.
  • Ease of Repair: If composite restorations become damaged or worn over time, they can typically be repaired or replaced relatively easily by a dentist.

Overall, tooth-coloured composite resin offers excellent aesthetic results, durability, and versatility, making it a popular choice for various dental procedures aimed at restoring and enhancing the appearance of teeth.

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