{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,12]],"date-time":"2026-09-12T09:17:36Z","timestamp":1789204656778,"version":"build-2803163510"},"reference-count":0,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[1998,1,1]],"date-time":"1998-01-01T00:00:00Z","timestamp":883612800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Journal of Periodontology"],"published-print":{"date-parts":[[1998,1]]},"abstract":"<jats:p>T<jats:sc>he aims of the present study<\/jats:sc> on 40 patients were to quantitate by the Volpe\u2010Manhold method, the amount of supragingival (SPR) calculus, to determine qualitatively the amount of subgingival calculus (SBG), and to determine the association between supragingival and subgingival calculus on vestibular and lingual surfaces of all the teeth except third molars. Kappa values for intraexaminer reproducibility varied between 0.863 and 0.738. There was marked site\u2010specificity of SPR calculus scores, with the highest values by far on the lingual aspects of the lower anterior teeth: central incisor, lateral incisor, and canine, respectively. Although the grades for SBG calculus were higher on the lingual surfaces than on the vestibular surfaces of 25 of the 28 teeth, there was much less site\u2010specificity than for SPR calculus. For the teeth as a whole, there were significant associations (<jats:italic>P<\/jats:italic> &lt; 0.001), as tested by chi\u2010square or Fisher's exact test, between SPR and SBG grades on both vestibular and lingual surfaces, between SPR grades on vestibular and lingual surfaces, and between SBG grades on vestibular and lingual surfaces. However, for individual teeth, or groups of similar teeth, only a few of the above associations were statistically significant. <jats:italic>J Periodontol 1998;69:1\u20138<\/jats:italic>.<\/jats:p>","DOI":"10.1902\/jop.1998.69.1.1","type":"journal-article","created":{"date-parts":[[2012,3,20]],"date-time":"2012-03-20T12:47:59Z","timestamp":1332247679000},"page":"1-8","source":"Crossref","is-referenced-by-count":18,"title":["A Comparison of the Site\u2010Specificity of Supragingival and Subgingival Calculus Deposition"],"prefix":"10.1002","volume":"69","author":[{"given":"Trudy L.","family":"Corbett","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Colin","family":"Dawes","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[1998,1]]},"container-title":["Journal of Periodontology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/aap.onlinelibrary.wiley.com\/doi\/pdf\/10.1902\/jop.1998.69.1.1","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,19]],"date-time":"2025-10-19T12:13:36Z","timestamp":1760876016000},"score":1,"resource":{"primary":{"URL":"https:\/\/aap.onlinelibrary.wiley.com\/doi\/10.1902\/jop.1998.69.1.1"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1998,1]]},"references-count":0,"journal-issue":{"issue":"1","published-print":{"date-parts":[[1998,1]]}},"alternative-id":["10.1902\/jop.1998.69.1.1"],"URL":"https:\/\/doi.org\/10.1902\/jop.1998.69.1.1","archive":["Portico"],"relation":{},"ISSN":["0022-3492","1943-3670"],"issn-type":[{"value":"0022-3492","type":"print"},{"value":"1943-3670","type":"electronic"}],"subject":[],"published":{"date-parts":[[1998,1]]}}}