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Friday, June 23, 2000

Conservative and Endodontics MCQ Answer 11

Friday, June 23, 2000

Answer: C. 53-90%

There are a great number of articles reporting the success rate of endodontic treatment, ranging between 53 and 94%. However, even if 90% of all endodontic treatment is successful over time, the reciprocal failure rate is still 10%. In the United States alone where the number of teeth treated per year now exceeds 50 million, a 10% failure rate would represent 5 million treatment failures per year. Extrapolating these numbers over the past 3 to 4 decades reveals that the number of failing endodontically treated teeth is massive and could approach tens of millions!


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