{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,28]],"date-time":"2026-05-28T05:03:40Z","timestamp":1779944620638,"version":"3.53.1"},"reference-count":25,"publisher":"MDPI AG","issue":"6","license":[{"start":{"date-parts":[[2026,5,26]],"date-time":"2026-05-26T00:00:00Z","timestamp":1779753600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100018542","name":"Natural Science Foundation of Sichuan Province","doi-asserted-by":"crossref","award":["24NSFSC1281"],"award-info":[{"award-number":["24NSFSC1281"]}],"id":[{"id":"10.13039\/501100018542","id-type":"DOI","asserted-by":"crossref"}]},{"name":"Doctoral program of Chengdu Agricultural College","award":["2023001"],"award-info":[{"award-number":["2023001"]}]},{"name":"Science and Technology program of the Sichuan Medical Products Administration","award":["2024010"],"award-info":[{"award-number":["2024010"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Veterinary Sciences"],"abstract":"<jats:p>Post\u2013core restoration serves as an effective treatment for fractured canine teeth. However, the influence of post length on the stability of the teeth for small animals remains controversial. This study employs finite element analysis and a force machine in vitro to evaluate the biomechanical effects of varying fiber post lengths in maxillary canine teeth, aiming to establish theoretical guidelines for optimizing post\u2013core restoration in canine dentistry. Three-dimensional models of the canine teeth of large, medium, and small dogs (German Shepherds, Beagles, and Teddy dogs) were constructed using finite element analysis (FEA). Fiber posts with post-to-root length ratios of 1\/3, 1\/2, and 2\/3 were established. Stress distribution (\u03c31\/\u03c32) and total deformation under 100\u20131100 N loading were analyzed virtually in ANSYS (version 17.0.0.19190), as well as in a force machine in vitro. FEA and in vitro fracture tests showed good correlation (p &gt; 0.05). Fracture loads for large, medium, and small breeds were 1115.851 \u00b1 6.984 N (distal) and 1177.39 \u00b1 5.82 N (lingual), 901.627 \u00b1 7.49 N (distal) and 976.504 \u00b1 6.399 N (lingual), and 812.733 \u00b1 5.476 N (distal) and 897.642 \u00b1 6.42 N (lingual), respectively. The fiber post with a root\u2013post ratio of 2\/3 exhibited the highest fracture resistance, potentially making it be the best choice for post\u2013core restoration.<\/jats:p>","DOI":"10.3390\/vetsci13060514","type":"journal-article","created":{"date-parts":[[2026,5,26]],"date-time":"2026-05-26T11:02:51Z","timestamp":1779793371000},"page":"514","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Biomechanical Analysis of Post\u2013Core Crown Restoration in Dog Maxillary Canine Teeth"],"prefix":"10.3390","volume":"13","author":[{"given":"Mingfei","family":"Ding","sequence":"first","affiliation":[{"name":"College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China"},{"name":"Wangmiaotai Animal Hospital, Chengdu 610065, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Huanhuan","family":"Li","sequence":"additional","affiliation":[{"name":"College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Min","family":"Yang","sequence":"additional","affiliation":[{"name":"College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China"},{"name":"Pet Nutrition and Health Research Center, Chengdu Agricultural College, Chengdu 611130, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ruixue","family":"Chen","sequence":"additional","affiliation":[{"name":"College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Siyu","family":"Zhang","sequence":"additional","affiliation":[{"name":"College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jie","family":"Yang","sequence":"additional","affiliation":[{"name":"Sichuan Institute of Musk Deer Breeding, Sichuan Institute for Drug Control, Chengdu 611731, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Haifeng","family":"Liu","sequence":"additional","affiliation":[{"name":"College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zhijun","family":"Zhong","sequence":"additional","affiliation":[{"name":"College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9898-5754","authenticated-orcid":false,"given":"Guangneng","family":"Peng","sequence":"additional","affiliation":[{"name":"College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2933-3645","authenticated-orcid":false,"given":"Chengli","family":"Zheng","sequence":"additional","affiliation":[{"name":"Sichuan Institute of Musk Deer Breeding, Sichuan Institute for Drug Control, Chengdu 611731, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ming","family":"Zhang","sequence":"additional","affiliation":[{"name":"College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ziyao","family":"Zhou","sequence":"additional","affiliation":[{"name":"College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2026,5,26]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Kim, C.-G., Kwon, D., Lee, K., Kim, S.E., and Jo, H.M. 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