{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,2]],"date-time":"2026-10-02T22:42:21Z","timestamp":1790980941168,"version":"4.1.0"},"reference-count":20,"publisher":"The Angle Orthodontist (EH Angle Education & Research Foundation)","issue":"2","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2009,3]]},"abstract":"<jats:title>Abstract<\/jats:title>\n        <jats:p>\n          <jats:bold>Objective:<\/jats:bold> To examine the stability of mini-screws that invade a dental root by measuring the retention period\/failure rate, and to illustrate their effects on paradental tissues.<\/jats:p>\n        <jats:p>\n          <jats:bold>Materials and Methods:<\/jats:bold> Three adult male beagle dogs received 48 orthodontic mini-screws. Half of the mini-screws were implanted to invade the roots, and the rest were placed in the middle of the alveolar bone. Half of the mini-screws were loaded immediately. The retention period of the mini-screws was documented. The dogs were euthanized after 8 weeks, and tissue samples were examined histologically.<\/jats:p>\n        <jats:p>\n          <jats:bold>Results:<\/jats:bold> The failure rate of the mini-screws that invaded the roots was 79.2%, and that of the mini-screws in the middle of the alveolar bone was 8.3%. The application of force had little effect on the failed mini-screws. Moderately injured roots were repaired with osteoid and\/or cementoid tissues with normal periodontal ligaments, followed by recovery of the original configuration.<\/jats:p>\n        <jats:p>\n          <jats:bold>Conclusion:<\/jats:bold> Orthodontic mini-screws had a higher failure rate when placed to invade the dental roots. However, minimally damaged dental roots do not adversely affect the healing process. (<jats:italic>Angle Orthod.<\/jats:italic> 2009:79; )<\/jats:p>","DOI":"10.2319\/122007-413.1","type":"journal-article","created":{"date-parts":[[2008,9,24]],"date-time":"2008-09-24T19:35:16Z","timestamp":1222284916000},"page":"248-255","source":"Crossref","is-referenced-by-count":39,"title":["Stability of Mini-Screws Invading the Dental Roots and Their Impact on the Paradental Tissues in Beagles"],"prefix":"10.2319","volume":"79","author":[{"given":"Yoon-Goo","family":"Kang","sequence":"first","affiliation":[{"name":"a\u2009Clinical Assistant Professor, Department of Orthodontics, College of Dentistry, Kyunghee University, Seoul, Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ji-Young","family":"Kim","sequence":"additional","affiliation":[{"name":"a\u2009Clinical Assistant Professor, Department of Orthodontics, College of Dentistry, Kyunghee University, Seoul, Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Young-Jun","family":"Lee","sequence":"additional","affiliation":[{"name":"b\u2009Former Associate Professor, Department of Orthodontics, College of Dentistry, Kyunghee University, Seoul, Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kyu-Rhim","family":"Chung","sequence":"additional","affiliation":[{"name":"c\u2009Former Professor, Department of Orthodontics, College of Dentistry, Kyunghee University, Seoul, Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Young-Guk","family":"Park","sequence":"additional","affiliation":[{"name":"d\u2009Professor and Chair, Department of Orthodontics, College of Dentistry, Kyunghee University, Seoul, Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1164","reference":[{"key":"i0003-3219-079-02-0248-b1","series-title":"Am J Orthod Dentofacial Orthop","first-page":"9","article-title":"Clinical use of miniscrew implants as orthodontic anchorage: success rates and postoperative discomfort.","volume":"131","author":"Kuroda, S.","year":"2007","unstructured":"Kuroda, S., Y.Sugawara, T.Deguchi, H.Kyung, and T.Takano-Yamamoto. 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