{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,21]],"date-time":"2026-09-21T16:12:39Z","timestamp":1790007159508,"version":"4.0.1"},"reference-count":42,"publisher":"The Angle Orthodontist (EH Angle Education & Research Foundation)","issue":"5","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2007,9,1]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Loss of the mandibular first molar often leads to the overeruption of the opposing maxillary first molar, resulting in occlusal interference, loss of periodontal bony support, and inadequate room to restore the mandibular edentulous space. Without orthodontic molar intrusion or segmental surgical impaction, restoring the posterior occlusion often entails the need for significant reduction of maxillary molar crown height, with the potential need for costly iatrogenic root canal therapy and restoration. The literature has cited successful maxillary molar intrusion with minor prosthodontic reduction using palatal orthodontic miniscrews and buccal zygomatic miniplates. In this report, the authors present successful maxillary molar intrusion with two orthodontic miniscrews in a patient with extreme dental anxiety and significant dental erosion due to gastric reflux. Using two orthodontic miniscrews for skeletal anchorage to intrude the maxillary molar simplified the orthodontic treatment by eliminating the need for extensive surgery, headgear, and intraoral multiunit anchorage and preserved indispensable tooth enamel. The clinical results showed significant intrusion through the maxillary sinus cortical floor while maintaining periodontal health, tooth vitality, and root length.<\/jats:p>","DOI":"10.2319\/050106-187.1","type":"journal-article","created":{"date-parts":[[2007,5,9]],"date-time":"2007-05-09T17:32:08Z","timestamp":1178731928000},"page":"915-922","source":"Crossref","is-referenced-by-count":34,"title":["Intrusion of Overerupted Upper First Molar Using Two Orthodontic Miniscrews"],"prefix":"10.2319","volume":"77","author":[{"given":"Neal D.","family":"Kravitz","sequence":"first","affiliation":[{"name":"a Orthodontic Resident, Department of Orthodontics, University of Illinois at Chicago"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Budi","family":"Kusnoto","sequence":"first","affiliation":[{"name":"b Clinical Chair, Clinical Assistant Professor, Department of Orthodontics, University of Illinois at Chicago"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Peter T.","family":"Tsay","sequence":"first","affiliation":[{"name":"c Clinical Associate Professor, Department of Orthodontics, University of Illinois at Chicago"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"William F.","family":"Hohlt","sequence":"first","affiliation":[{"name":"d Clinical Professor, Department of Orthodontics, University of Illinois at Chicago"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1164","reference":[{"key":"2020042117472729700_i0003-3219-077-05-0915-b1","first-page":"550","article-title":"Intrusion of overerupted upper left first and second molars by mini-implants with partial-fixed orthodontic appliances: a case report.","volume":"74","author":"Yao","year":"2004","journal-title":"Angle Orthod"},{"key":"2020042117472729700_i0003-3219-077-05-0915-b2","first-page":"754","article-title":"Maxillary molar intrusion with fixed appliances and mini-implant anchorage studied in three dimensions.","volume":"75","author":"Yao","year":"2005","journal-title":"Angle Orthod"},{"key":"2020042117472729700_i0003-3219-077-05-0915-b3","first-page":"278","article-title":"Occlusal reconstruction of a collapsed bite by orthodontic treatment, pre-prosthetic surgery and implant supported prostheses: a case report.","volume":"56","author":"Daly","year":"2001","journal-title":"SADJ"},{"key":"2020042117472729700_i0003-3219-077-05-0915-b4","article-title":"Management of severely compromised orthodontic patients.","author":"Melsen"},{"key":"2020042117472729700_i0003-3219-077-05-0915-b5","first-page":"682","article-title":"The use of orthognathic surgery to facilitate implant placement: a case report.","volume":"11","author":"Schoeman","year":"1996","journal-title":"Int J Oral Maxillofac Implants"},{"key":"2020042117472729700_i0003-3219-077-05-0915-b6","unstructured":"American Association of Orthodontists. 2006. 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