{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,4]],"date-time":"2026-05-04T01:41:40Z","timestamp":1777858900081,"version":"3.51.4"},"reference-count":61,"publisher":"SAGE Publications","issue":"2","license":[{"start":{"date-parts":[[2008,6,1]],"date-time":"2008-06-01T00:00:00Z","timestamp":1212278400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J Vet Dent"],"published-print":{"date-parts":[[2008,6]]},"abstract":"<jats:p>Abnormal extrusion of canine teeth is often noted in middle-aged and geriatric domestic cats. The same age group of cats also is commonly affected by tooth resorption (TR). This study explored the relationship between these two phenomena of unknown etiology. Using digital radiography, the distance between the alveolar margin (AM) and cementoenamel junction (CEJ), referred to as the AM-CEJ distance, was measured in clinically and radiographically healthy maxillary canine teeth of 24 TR-affected and 29 TR-free cats. The mean AM-CEJ distance of maxillary canine teeth of cats with and cats without TR was 2.68-mm and 2.22-mm, respectively. An analysis of covariance adjusting for age revealed a significant correlation (p = 0.02) between tooth extrusion and TR. Extrusion of the maxillary canine teeth became clinically apparent when an AM-CEJ distance of 2.5-mm or greater was evident in the absence of horizontal or vertical alveolar bone loss. Based on this criterion, 15 of 24 cats with TR (63.0 %) exhibited extrusion of maxillary canine teeth, compared to 9 of 29 cats without TR (31.0 %). Four extruded and five non-extruded maxillary canine teeth were evaluated histologically. Cementum of extruded teeth was significantly thicker compared to that of non-extruded teeth. Four of 4 canine teeth with extrusion (100 %) showed histological evidence of resorption, compared to 1 of 5 canine teeth without extrusion (20.0 %). These results suggest that tooth extrusion is linked to or may be caused by similar factors responsible for the development of TR.<\/jats:p>","DOI":"10.1177\/089875640802500209","type":"journal-article","created":{"date-parts":[[2016,4,28]],"date-time":"2016-04-28T05:34:12Z","timestamp":1461821652000},"page":"86-95","source":"Crossref","is-referenced-by-count":33,"title":["Significant Association between Tooth Extrusion and Tooth Resorption in Domestic Cats"],"prefix":"10.1177","volume":"25","author":[{"given":"John R.","family":"Lewis","sequence":"first","affiliation":[{"name":"From the Matthew J. Ryan Veterinary Hospital of the University of Pennsylvania; 3900 Delancey Street, Philadelphia, PA 19104-6010; and the Department of Anatomy (Okuda) School of Veterinary Medicine, Azabu University, Director, Vettec Dentistry, #2B 3-20-7 Higashi-mukojima, Sumida-ku, Tokyo 131-0032, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ayako","family":"Okuda","sequence":"additional","affiliation":[{"name":"From the Matthew J. Ryan Veterinary Hospital of the University of Pennsylvania; 3900 Delancey Street, Philadelphia, PA 19104-6010; and the Department of Anatomy (Okuda) School of Veterinary Medicine, Azabu University, Director, Vettec Dentistry, #2B 3-20-7 Higashi-mukojima, Sumida-ku, Tokyo 131-0032, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Frances S.","family":"Shofer","sequence":"additional","affiliation":[{"name":"From the Matthew J. Ryan Veterinary Hospital of the University of Pennsylvania; 3900 Delancey Street, Philadelphia, PA 19104-6010; and the Department of Anatomy (Okuda) School of Veterinary Medicine, Azabu University, Director, Vettec Dentistry, #2B 3-20-7 Higashi-mukojima, Sumida-ku, Tokyo 131-0032, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Garret","family":"Pachtinger","sequence":"additional","affiliation":[{"name":"From the Matthew J. Ryan Veterinary Hospital of the University of Pennsylvania; 3900 Delancey Street, Philadelphia, PA 19104-6010; and the Department of Anatomy (Okuda) School of Veterinary Medicine, Azabu University, Director, Vettec Dentistry, #2B 3-20-7 Higashi-mukojima, Sumida-ku, Tokyo 131-0032, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Colin E.","family":"Harvey","sequence":"additional","affiliation":[{"name":"From the Matthew J. 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