{"product_id":"tooth-extraction-in-dental-practice-von-tordis-agnete-trovik","title":"Tooth extraction in Dental Practice","description":"\u003cp\u003eThe 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 periodontal  diseases have remained stable during 30  yrs. Tooth type and number of teeth extracted were  the most important predictors of the dentists  recommending a replacement. Demographic  characteristics had no effect on the  dentists'' decision. 47% of the patients reported  that a replacement was necessary while 16% were  undecided. Patient and dentist agreed about the  need for a replacement in 62%. Tooth type,  service sector, number of teeth extracted and number  of remaining teeth affected the likelihood of  agreement about need for the replacement of teeth.\u003c\/p\u003e\u003cdiv class=\"aw-variant-hidden-subtitle-div\" id=\"aw-variant-subtitle-9783838393223\"\u003e\u003ch3\u003eA study of time trend and decision-making\u003c\/h3\u003e\u003c\/div\u003e","brand":"Autorenwelt Shop","offers":[{"title":"Softcover - 9783838393223","offer_id":39499082924125,"sku":"9783838393223","price":49.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0622\/files\/4bd0e8ed-e2b7-44f4-8097-39435584616b.jpg?v=1757741288","url":"https:\/\/shop.autorenwelt.de\/en\/products\/tooth-extraction-in-dental-practice-von-tordis-agnete-trovik","provider":"Autorenwelt Shop","version":"1.0","type":"link"}