Restoration longevity is probably one of the most important considerations in restorative dentistry for patients and clinicians alike. Patients want to know that the restorations they are provided with will last as long as possible, will cause them no problems, will remain aesthetic, and will allow them to function effectively. Clinicians share all of these concerns and also don't want to have to replace restorations (until at least many years of successful functioning have elapsed).
However, data on restoration longevity can be particularly hard to come by. This paper summarises some of the historical studies on restoration longevity, providing fascinating insights into how research was conducted in years gone by – with data often laboriously collected and analysed using paper, pens and calculators. No computers in those early studies! Fortunately, dedicated researchers with an interest in this topic recognised the importance of gathering such data, and established the importance of using robust methodologies and statistical approaches to tackle that very important question that is so often asked by patients – how long will my new filling last?
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