Even Though not in the “Smile Zone” You Should Replace that Back Tooth
People often put a premium on appearance when deciding whether or not to replace a missing tooth. There’s more motivation to replace one in the “smile zone,” where the teeth are more visible, than one that’s not.
But even if your missing tooth is in the back out of sight, there are still good reasons to replace it. That’s because even one lost tooth can have a cascading ill effect on other teeth, the underlying bone or eventually your entire facial structure.
The chief problems caused by a missing tooth occur first with the bone. The act of chewing generates pressure around the teeth. The teeth transmit this pressure through the roots to the bone, which stimulates the bone to grow and remain strong in support of the teeth. When you lose a tooth, the bone no longer receives this growth stimulation.
In time, the replacement rate for older bone cells will slow down and cause the bone volume to decrease. It’s possible to detect a change just months after losing a tooth: you can lose an estimated 25% of bone width in the first year.
As the bone diminishes, the jaw loses height and then more width. The gum tissues will also gradually decrease. As a result you may not be able to chew or even speak as well as you once could. Depending on the number of teeth you’ve lost, the foundational portion of the jawbone — the basal bone — may also decline. The distance between nose and chin may decrease and the cheeks sink in. Without bone support in the rear, the bite can collapse and push the teeth forward out of their normal position.
The best way to avoid this debilitating spiral is to replace a tooth as soon as practical. There are many options, but perhaps the best choice is a dental implant: not only will it provide a life-like appearance, but its affinity with bone will stop bone loss and even encourage new growth.
So, don’t neglect replacing that “invisible” tooth if it’s lost. Your mouth and ultimately your appearance will be better for it.