{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,8]],"date-time":"2026-03-08T04:55:58Z","timestamp":1772945758358,"version":"3.50.1"},"reference-count":35,"publisher":"American Veterinary Medical Association (AVMA)","issue":"S2","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["javma"],"published-print":{"date-parts":[[2023,12,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n<jats:sec id=\"sc_a1\">\n<jats:title>OBJECTIVE<\/jats:title>\n<jats:p>In the context of a study of Equine Odontoclastic Tooth Resorption and Hypercementosis (EOTRH), elderly Icelandic horses were examined in their originating country. The subject of this survey was the impact of dental treatment and keeping and feeding management on the health of the rostral oral cavity.<\/jats:p>\n<\/jats:sec>\n<jats:sec id=\"sc_a2\">\n<jats:title>ANIMALS<\/jats:title>\n<jats:p>A total of 170 horses (aged \u2265 15) located in different areas of Northwest, West, and South Iceland.<\/jats:p>\n<\/jats:sec>\n<jats:sec id=\"sc_a3\">\n<jats:title>METHODS<\/jats:title>\n<jats:p>The horse owners completed a questionnaire about keeping, feeding, and preventative dental care. The horses were clinically examined with particular attention to gingival and dental disorders of the rostral mouth, such as gingivitis, fistula, gingiva retraction, enlargement of the roots and dental calculus as well as integrity of incisors, bite angle, and tooth mobility.<\/jats:p>\n<\/jats:sec>\n<jats:sec id=\"sc_a4\">\n<jats:title>RESULTS<\/jats:title>\n<jats:p>Most of the horses were kept on pasture all year with little supplementary feeding. The frequency of dental treatment in Iceland was low. Only a few horses were affected by tooth loss, gingivitis, gingival recession, and incisor calculus. Calculus occurred more frequently and more severely in canines than in incisors. The findings did not depend on the location of the horse.<\/jats:p>\n<\/jats:sec>\n<jats:sec id=\"sc_a5\">\n<jats:title>CLINICAL RELEVANCE<\/jats:title>\n<jats:p>Assuming that the remarkable health of the rostral oral cavity in elderly Icelandic horses was not caused by preventive dental care, it is likely that it was due to living conditions in Iceland. Continuity, intensity of chewing, and nativeness of forage might promote the health of incisors and tissue surrounding the tooth even in elderly horses.<\/jats:p>\n<\/jats:sec>","DOI":"10.2460\/javma.23.06.0303","type":"journal-article","created":{"date-parts":[[2023,10,5]],"date-time":"2023-10-05T12:39:01Z","timestamp":1696509541000},"page":"S108-S113","source":"Crossref","is-referenced-by-count":4,"title":["Potential impact of natural conditions on the rostral oral health: a study of horses in Iceland"],"prefix":"10.2460","volume":"261","author":[{"given":"Anna M.","family":"Hain","sequence":"first","affiliation":[{"name":"Clinic for Horses, University of Veterinary Medicine Hannover, Foundation, Hannover, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sonja L.","family":"\u00de\u00f3risd\u00f3ttir","sequence":"additional","affiliation":[{"name":"Company Hestatannlaeknirinn ehf, Laekjam\u00f3t, Iceland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Melusine","family":"Tretow","sequence":"additional","affiliation":[{"name":"Clinic for Horses, University of Veterinary Medicine Hannover, Foundation, Hannover, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Astrid","family":"Bienert-Zeit","sequence":"additional","affiliation":[{"name":"Clinic for Horses, University of Veterinary Medicine Hannover, Foundation, Hannover, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1272","reference":[{"key":"B1","article-title":"Die H\u00e4ufigkeit der Hakenzahnerkrankungen bei Pferden","author":"Memedi S","year":"2007","unstructured":"Memedi S. Die H\u00e4ufigkeit der Hakenzahnerkrankungen bei Pferden. Doctor's thesis. Freie Universit\u00e4t Berlin; 2007."},{"issue":"1","key":"B2","series-title":"Vet J","first-page":"57","article-title":"A survey of health care and disease in geriatric horses aged 30 years or older","volume":"192","author":"Ireland JL","year":"2012","unstructured":"Ireland JL, McGowan CM, Clegg PD, Chandler KJ, Pinchbeck GL. A survey of health care and disease in geriatric horses aged 30 years or older. Vet J. 2012;192(1):57\u201364. doi:10.1016\/j.tvjl.2011.03.021"},{"issue":"1","key":"B3","series-title":"Equine Vet J","first-page":"101","article-title":"Disease prevalence in geriatric horses in the United Kingdom: veterinary clinical assessment of 200 cases","volume":"44","author":"Ireland JL","year":"2012","unstructured":"Ireland JL, Clegg PD, McGowan CM, McKane SA, Chandler KJ, Pinchbeck GL. Disease prevalence in geriatric horses in the United Kingdom: veterinary clinical assessment of 200 cases. Equine Vet J. 2012;44(1):101\u2013106. doi:10.1111\/j.2042-3306.2010.00361.x"},{"key":"B4","article-title":"A Study of Dental Disease in the Horse","author":"Baker GJ","year":"1979","unstructured":"Baker GJ. A Study of Dental Disease in the Horse. Doctor's thesis. University of Glasgow; 1979."},{"issue":"2","key":"B5","series-title":"Vet Clin North Am Equine Pract","first-page":"521","article-title":"The gold standard of dental care: the geriatric horse","volume":"29","author":"Du Toit N","year":"2013","unstructured":"Du Toit N, Rucker BA. The gold standard of dental care: the geriatric horse. Vet Clin North Am Equine Pract. 2013;29(2):521\u2013527. doi:10.1016\/j.cveq.2013.04.002"},{"issue":"6","key":"B6","series-title":"Animals","first-page":"298","article-title":"The frequency of errors in determining age based on selected features of the incisors of Icelandic horses","volume":"9","author":"\u0141uszczy\u0144ski J","year":"2019","unstructured":"\u0141uszczy\u0144ski J, Pieszka M, Petrych W, Stefaniuk-Szmukier M. The frequency of errors in determining age based on selected features of the incisors of Icelandic horses. Animals. 2019;9(6):298. doi:10.3390\/ani9060298"},{"issue":"10","key":"B7","series-title":"Animal","first-page":"1697","article-title":"A comparison of the occurrence of common dental abnormalities in stabled and free-grazing horses","volume":"4","author":"Masey O'Neill HV","year":"2010","unstructured":"Masey O'Neill HV, Keen J, Dumbell L. A comparison of the occurrence of common dental abnormalities in stabled and free-grazing horses. Animal. 2010;4(10):1697\u20131701. doi:10.1017\/S1751731110000893"},{"key":"B8","series-title":"Book of Proceedings of the 28th European Veterinary Dental Forum","first-page":"120","article-title":"Is EOTRH more prevalent in the Icelandic breed compared to Warmblood horses","author":"Vlaminck L","year":"2019","unstructured":"Vlaminck L, Jonker A, Pollaris E. Is EOTRH more prevalent in the Icelandic breed compared to Warmblood horses? In: Santos RR, ed. Book of Proceedings of the 28th European Veterinary Dental Forum. European Veterinary Dental Society; 2019:120\u2013121."},{"key":"B9","series-title":"Agriculture in Iceland: Conditions and Characteristics","author":"J\u00f3hannesson T","year":"2010","unstructured":"J\u00f3hannesson T. Agriculture in Iceland: Conditions and Characteristics. The Agricultural University of Iceland; 2010."},{"key":"B10","article-title":"WorldFengur","unstructured":"WF. WorldFengur. Accessed June 10, 2023. http:\/\/www.worldfengur.com"},{"issue":"4","key":"B11","series-title":"Equine Vet J","first-page":"371","article-title":"Relationship between condition score, physical measurements and body fat percentage in mares","volume":"15","author":"Henneke DR","year":"1983","unstructured":"Henneke DR, Potter GD, Kreider JL, Yeates BF. Relationship between condition score, physical measurements and body fat percentage in mares. Equine Vet J. 1983;15(4):371\u2013372. doi:10.1111\/j.2042-3306.1983.tb01826.x"},{"issue":"suppl 2","key":"B12","series-title":"J Am Vet Med Assoc","first-page":"S102","article-title":"Widespread prevalence of Equine Odontoclastic Tooth Resorption and Hypercementosis detected in German Icelandic horse population: impact anamnestic factors on etiology","volume":"261","author":"Tretow M","year":"2023","unstructured":"Tretow M, Hain AM, Bienert-Zeit A. Widespread prevalence of Equine Odontoclastic Tooth Resorption and Hypercementosis detected in German Icelandic horse population: impact anamnestic factors on etiology. J Am Vet Med Assoc. 2023;261(suppl 2):S102\u2013S107. doi:10.2460\/javma.23.05.0301"},{"issue":"4","key":"B13","series-title":"J Vet Dent","first-page":"18","article-title":"The modified Triadan system: nomenclature for veterinary dentistry","volume":"8","author":"Floyd MR","year":"1991","unstructured":"Floyd MR. The modified Triadan system: nomenclature for veterinary dentistry. J Vet Dent. 1991;8(4):18\u201319. doi:10.1177\/089875649100800402"},{"issue":"4","key":"B14","series-title":"Equine Vet J","first-page":"310","article-title":"Post mortem survey of peripheral dental caries in 510 Swedish horses","volume":"42","author":"Gere I","year":"2010","unstructured":"Gere I, Dixon PM. Post mortem survey of peripheral dental caries in 510 Swedish horses. 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Geo\u00f6kologie der Frostb\u00f6den auf Island und ihre Bedeutung f\u00fcr die Bodennutzung. In: Abhandlungen der Braunschweigischen Wissenschaftlichen Gesellschaft. Vol 28. Erich Goltze Co; 1977:23\u201351."},{"key":"B18","series-title":"Supplemente zur Tierern\u00e4hrung f\u00fcr Studium und Praxis","author":"Kamphues J","year":"2014","unstructured":"Kamphues J, Wolf P, Coenen M, et al. Supplemente zur Tierern\u00e4hrung f\u00fcr Studium und Praxis. 12th ed. Philatelie Verlag; 2014."},{"key":"B19","series-title":"Icel Agric Sci","first-page":"109","article-title":"Studies in the grazing of a drained lowland fen in Iceland II. Plant preferences of horses during summer","volume":"4","author":"Magnusson SH","year":"1990","unstructured":"Magnusson SH, Magnusson B. Studies in the grazing of a drained lowland fen in Iceland II. Plant preferences of horses during summer. Icel Agric Sci. 1990;4:109\u2013124."},{"issue":"1","key":"B20","series-title":"Grass Forage Sci","first-page":"19","article-title":"The variation in morphology of perennial ryegrass cultivars throughout the grazing season and effects on organic matter digestibility","volume":"70","author":"Beecher M","year":"2015","unstructured":"Beecher M, Hennessy D, Boland TM, McEvoy M, O'Donovan M, Lewis E. The variation in morphology of perennial ryegrass cultivars throughout the grazing season and effects on organic matter digestibility. Grass Forage Sci. 2015;70(1):19\u201329. doi:10.1111\/gfs.12081"},{"issue":"2","key":"B21","series-title":"Clin Tech Equine Pract","first-page":"135","article-title":"Equine periodontal disease","volume":"4","author":"Klugh, DO","year":"2005","unstructured":"Klugh, DO. Equine periodontal disease. 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J Am Dent Assoc. 2007;138:15\u201320. doi:10.14219\/jada.archive.2007.0358"},{"issue":"2","key":"B26","series-title":"Equine Vet Educ","first-page":"63","article-title":"Case study of 100 horses presented to an equine dental technician in the UK","volume":"12","author":"Brigham EJ","year":"2000","unstructured":"Brigham EJ, Duncanson GR. Case study of 100 horses presented to an equine dental technician in the UK. Equine Vet Educ. 2000;12(2):63\u201367. doi:10.1111\/j.2042-3292.2000.tb01767.x"},{"key":"B27","series-title":"Arch Med Vet","first-page":"85","article-title":"Dental pathologies in incisors, canines and first premolar in adult Chilean horses","volume":"42","author":"Mu\u00f1oz L","year":"2012","unstructured":"Mu\u00f1oz L, Vidal F, Sep\u00falveda O, Ortiz O, Rehhof C. Dental pathologies in incisors, canines and first premolar in adult Chilean horses. Arch Med Vet. 2012;42:85\u201390. doi:10.4067\/S0301-732X2010000100012"},{"issue":"2","key":"B28","series-title":"Chilean J Agric Anim Sci","first-page":"103","article-title":"Incisor dental disorders in Thoroughbred horses of the Club H\u00edpico Concepci\u00f3n, Chile","volume":"29","author":"Mu\u00f1oz L","year":"2013","unstructured":"Mu\u00f1oz L, Esturillo T, Ortiz R, Rehhof C, Cruces J, Briones M. Incisor dental disorders in Thoroughbred horses of the Club H\u00edpico Concepci\u00f3n, Chile. Chilean J Agric Anim Sci. 2013;29(2):103\u2013109."},{"key":"B29","series-title":"Lehrbuch der Anatomie der Haustiere","first-page":"74","article-title":"Mundh\u00f6hle und Schlundkopf","volume":"Vol 2","author":"Thom\u00e9 H","year":"1987","unstructured":"Thom\u00e9 H. Mundh\u00f6hle und Schlundkopf. In: Nickel R, Schummer A, Seiferle E, eds. Lehrbuch der Anatomie der Haustiere. Vol 2. 6th ed. Paul Parey; 1987:74."},{"key":"B30","series-title":"Res Vet Sci","first-page":"189","article-title":"Chewing patterns in horses during the intake of variable quantities of two pelleted compound feeds differing in their physical characteristics only","volume":"125","author":"Bochnia M","year":"2019","unstructured":"Bochnia M, Goetz F, Wensch-Dorendorf M, Koelln M, Zeynera A. Chewing patterns in horses during the intake of variable quantities of two pelleted compound feeds differing in their physical characteristics only. Res Vet Sci. 2019;125:189\u2013194. doi:10.1016\/j.rvsc.2019.06.014"},{"issue":"120","key":"B31","series-title":"J R Soc Interface","first-page":"20160399","article-title":"Mechanical modelling of tooth wear","volume":"13","author":"Karme A","year":"2016","unstructured":"Karme A, Rannikko J, Kallonen A, Clauss M, Fortelius M. Mechanical modelling of tooth wear. J R Soc Interface. 2016;13(120):20160399. doi:10.1098\/rsif.2016.0399"},{"key":"B32","series-title":"Die Zahnaltersbestimmung beim Przewalski-Pferd","author":"Ries M","year":"1986","unstructured":"Ries M. Die Zahnaltersbestimmung beim Przewalski-Pferd. Doctor's thesis. Ludwigs-Maximilians-Universit\u00e4t M\u00fcnchen; 1986."},{"issue":"20","key":"B33","series-title":"Vet Record","first-page":"558","article-title":"Dental wear in horses in relation to the microhardness of enamel and dentine","volume":"144","author":"Myelle S","year":"1999","unstructured":"Myelle S, Simoens P, Verbeeck R, Ysebaert MT, Lauwers H. Dental wear in horses in relation to the microhardness of enamel and dentine. Vet Record. 1999;144(20):558\u2013561. doi.org\/10.1136\/vr.144.20.558"},{"issue":"5","key":"B34","series-title":"Acta Odontol Scand","first-page":"299","article-title":"Occlusal wear of teeth and restorative materials: a review of classification, etiology, mechanisms of wear, and some aspects of restorative procedures","volume":"51","author":"Dahl BL","year":"1993","unstructured":"Dahl BL, Carlsson GE, Ekfeldt A. Occlusal wear of teeth and restorative materials: a review of classification, etiology, mechanisms of wear, and some aspects of restorative procedures. Acta Odontol Scand. 1993;51(5):299\u2013311. doi:10.3109\/00016359309040581"},{"key":"B35","series-title":"Focus Meeting","article-title":"Common disorders of incisor teeth and treatment","author":"Johnson TJ","year":"2006","unstructured":"Johnson TJ, Porter CM. Common disorders of incisor teeth and treatment. In: Focus Meeting. 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