PubMed · 1389593
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S Duffy. 1992-09-05. Fee crisis.. https://doi.org/10.1038/sj.bdj.4807961
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A review of the dental literature reveals a lack of consensus as to the longevity of conventional prosthodontic therapy. The reasons for this are suggested and best estimates of the longevity of partial, complete and fixed prostheses are presented based on the available literature. A renewed interest in survival studies, hopefully based on sound parameters that outline the reasons for failure, as well as replacement indicators, is required to update our knowledge of survival rates.
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Indices used to measure the oral status of removable dental prostheses generally do not conform to criteria essential to high-quality measures. Existing indices fail to meet accepted standards of reliability and validity, and most lack specified training protocols, use ambiguous terminology, are limited to nominal, ordinal, or dichotomous level data, and require high levels of observer inference. As a result it is virtually impossible to compare one study with another, to combine data from more than one study to broaden the results obtained, and even to collect longitudinal data without being able to rule out examiner drift. More successful measures, in particular for vertical dimension of occlusion, maxillary denture retention, and arch size and shape, hold promise for future developments in research data collection and quality assessment. These improvements, combined with a growing awareness of the importance of measuring nondental factors, should lead to more reliable, valid measures of need for treatment.