{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,1]],"date-time":"2026-10-01T00:46:13Z","timestamp":1790815573333,"version":"4.1.0"},"reference-count":30,"publisher":"MDPI AG","issue":"23","license":[{"start":{"date-parts":[[2019,11,21]],"date-time":"2019-11-21T00:00:00Z","timestamp":1574294400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["IJERPH"],"abstract":"<jats:p>After tooth extraction, alveolar ridge loss due to resorption is almost inevitable. Most of this bone loss occurs during the first six months after the extraction procedure. Many studies have indicated that applying socket-filling biomaterials after extraction can effectively reduce the resorption rate of the alveolar ridge. The purpose of this study was to investigate the clinical efficacy of the application of a hydroxyapatite\/\u03b2-tricalcium plus collagen (HA\/\u03b2-TCP + collagen) dental bone graft in dental sockets immediately after tooth extraction, so as to prevent socket resorption. The study was conducted on 57 extraction sockets located in the mandible and maxilla posterior regions in 51 patients. HA\/\u03b2-TCP + collagen was inserted into all of the dental sockets immediately after extraction, and was covered with a flap. Follow-up was performed for three months after extraction, using radiographs and stents for the vertical and horizontal alveolar ridge measurements. A minimal alveolar bone width reduction of 1.03 \u00b1 2.43 mm (p &lt; 0.05) was observed. The height reduction showed a slight decrease to 0.62 \u00b1 1.46 mm (p &lt; 0.05). Radiographically, the bone height was maintained after three months, indicating a good HA\/\u03b2-TCP + collagen graft performance in preserving alveolar bone. In conclusion, the HA\/\u03b2-TCP + collagen graft demonstrated adequate safety and efficacy in dental socket preservation following tooth extraction.<\/jats:p>","DOI":"10.3390\/ijerph16234616","type":"journal-article","created":{"date-parts":[[2019,11,22]],"date-time":"2019-11-22T02:49:27Z","timestamp":1574390967000},"page":"4616","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":47,"title":["Prevention of Bone Resorption by HA\/\u03b2-TCP + Collagen Composite after Tooth Extraction: A Case Series"],"prefix":"10.3390","volume":"16","author":[{"given":"Hsi Kuei","family":"Lin","sequence":"first","affiliation":[{"name":"School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei 110 Taiwan"},{"name":"Dental Department, Taipei Medical University, Shuang-Ho hospital, Taipei 235, Taiwan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yu Hwa","family":"Pan","sequence":"additional","affiliation":[{"name":"School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei 110 Taiwan"},{"name":"Department of General Dentistry, Chang Gung Memorial Hospital, Taipei 105, Taiwan"},{"name":"Graduate Institute of Dental &amp; Craniofacial Science, Chang Gung University, Taoyuan 333, Taiwan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Eisner","family":"Salamanca","sequence":"additional","affiliation":[{"name":"School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei 110 Taiwan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yu Te","family":"Lin","sequence":"additional","affiliation":[{"name":"Sunmax Biotech Co. Ltd., Tainan 744, Taiwan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wei Jen","family":"Chang","sequence":"additional","affiliation":[{"name":"School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei 110 Taiwan"},{"name":"Dental Department, Taipei Medical University, Shuang-Ho hospital, Taipei 235, Taiwan"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2019,11,21]]},"reference":[{"key":"ref_1","first-page":"917","article-title":"PratiqueCLINIQUE","volume":"72","author":"Irinakis","year":"2006","journal-title":"J. Can. Dent. Assoc."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"21","DOI":"10.1016\/0022-3913(67)90046-7","article-title":"Alveolar ridge resorption following tooth extraction","volume":"17","author":"Pietrokovski","year":"1967","journal-title":"J. Prosthet. 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