根管治療した歯とインプラントととでは、どちらの方が長持ちするのでしょうか？

今回はそんな疑問の一つの答えとなる論文を御紹介致します。

Initial root canal treatment and the replacement of a single tooth with implants are both viable treatment options, but various success rates have been reported for each treatment modality. This study compared 196 implant restorations and 196 matched initial nonsurgical root canal treatment (NSRCT) teeth in patients for four possible outcomes- success, survival, survival with subsequent treatment intervention and failure. (中略)

Outcomes were as follows for implants and NSRCT outcomes, respectively: success 73.5% and 82.1%; survival with no intervention 2.6% and 8.2%; survival with intervention 17.9% and 3.6%; and failure 6.1% and 6.1%. Location of the restoration in the mouth did not affect outcome. This study suggests that restored endodontically treated teeth and single-tooth implant restorations have similar failure rates, although the implant group showed a longer average and median time to function and a higher incidence of postoperative complications requiring subsequent treatment intervention.

・・・つまり、196本ずつの初めて根管治療を行った歯と

単独インプラントとの生存率は、

どちらも94％程度で差が無かったということです。

再根管治療歯は含まず、

また、成功率ではなく生存率での比較という点に

注意が必要ですが。

生存率が変わらないのであれば、

自分の歯で再び咬める様にできる根管治療の方が重要なのだと、改めて考えさせられました。

引用文献：Journal of Endodontics　Volume 32, Issue 9 , Pages 822-827, September 2006