If you've been told you need a crown, I'm going to explain it a little further. In the video, I provide a drawing of the tooth, looking down from the biting surface and from the side. Studies show that if a filling covers one-third or more of the biting surface of the tooth, the tooth's strength is decreased by 50%.
To put it simply, if you have a large filling in the tooth, the tooth is weaker. In the illustration in the video, you can see it covers about one-third of the distance. The reason I drew it like this is because this is typically what fillings look like in illustrations. Today, fillings are white, but you get the idea here. When one-third of the biting surface is occupied by a filling, the tooth is more likely to break. Sometimes, this is why a crown is recommended. Usually, we recommend a crown when there's either a symptom, like a broken tooth, or when there's decay that needs treatment.
Often, in our office, when we recommend a crown, it's because one of these cusps has broken off. This is a common scenario we encounter. Why? Because we see large fillings in the practice every day. Take this tooth, for example, in the X-Ray shown in the video. This tooth is almost entirely covered by a large silver filling, likely placed about 20 years ago. What happened is that one part of the tooth that was left actually fractured off, and now, to fix this tooth, a crown is needed to hold it together. A crown involves removing a small layer from the outside of the tooth, so in this case, it would make the tooth look somewhat like what's shown in the video. We remove a small layer, and then we use a perfect porcelain or sometimes a gold crown to restore the tooth, which looks much better than my drawing.
If you have more questions about this topic, please don't hesitate to contact our office.
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About Vernon Dental Centre
The Vernon Dental Centre in Vernon, B.C., is a family-oriented dental practice for all ages. Using advanced techniques and cutting-edge technology, our dedicated team offers cosmetic, restorative, and preventative dentistry in a friendly and caring environment.
Family Dentist Dr. Anthony Berdan’s focus is on excellence and comfort to provide you and your family with the care you deserve. We offer all aspects of general dentistry, from general dental needs to cosmetic restorations and smile whitening. Dr. Berdan welcomes your entire family; from children to the elderly. Here at the Vernon Dental Centre, we are dedicated to treating everyone the way that we would want to be treated.