Tooth extraction in Dental Practice
Tordis Agnete Trovik
Broschiertes Buch

Tooth extraction in Dental Practice

A study of time trend and decision-making

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The primary aims were to study reasons for tooth extraction and explanatory factors of normative and perceived need for replacement. The study is based on nation-wide cross-sectional surveys in 1968, 1988 and 1998. A systematic random sample was drawn in 1998 to give 40% of dentists in Norway; collecting demographic and treatment data on 772 dentists, 1,164 patients, 1,495 teeth and 987 radiographs. In a time-trend perspective, all age groups experienced a decrease in extractions due to caries in 1968-88 while no change was found during 1988-98. The proportions of extractions due to periodonta...