{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,10]],"date-time":"2025-10-10T01:02:15Z","timestamp":1760058135383,"version":"build-2065373602"},"reference-count":32,"publisher":"MDPI AG","issue":"3","license":[{"start":{"date-parts":[[2025,3,18]],"date-time":"2025-03-18T00:00:00Z","timestamp":1742256000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Pusan National University Research","award":["2022"],"award-info":[{"award-number":["2022"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Children"],"abstract":"<jats:p>Background: Cemento-ossifying fibroma (COF) is a benign, non-aggressive fibro-osseous tumor in which normal bone is replaced by fibrous tissue containing collagen fibers, bone, or cementum-like material. Although COF is rare in children, its occurrence requires careful management due to its potential impact on tooth development and occlusion. Surgical excision is the widely used treatment; however, post-operative occlusal guidance is crucial, particularly in pediatric patients. Case report: This case report presents the early intervention using a preformed eruption guidance appliance (EGA) following the excision of COF in a 5-year-old boy. The patient exhibited premature loss of the primary canine and displacement of the devel-oping permanent tooth bud. After surgical excision, an EGA was applied to facilitate proper eruption of the successor teeth and optimize oral muscle function. Over a four-year follow-up period, the permanent teeth in the affected area erupted favorably, and intercuspal relationships improved during the transition from primary to mixed dentition. Conclusions: Given the limited research on the long-term effects of COF on developing dentition, long-term follow-up and additional studies are necessary to further evaluate its impact and the effectiveness of eruption guidance appliances in pediatric patients.<\/jats:p>","DOI":"10.3390\/children12030379","type":"journal-article","created":{"date-parts":[[2025,3,18]],"date-time":"2025-03-18T10:43:51Z","timestamp":1742294631000},"page":"379","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Early Intervention with a Preformed Eruption Guidance Appliance After the Excision of Cemento-Ossifying Fibroma: A Case Report"],"prefix":"10.3390","volume":"12","author":[{"given":"Yeonjin","family":"Ju","sequence":"first","affiliation":[{"name":"Department of Pediatric Dentistry, Dental Research Institute, Pusan National University Dental Hospital, Yangsan 50612, Republic of Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Soyoung","family":"Park","sequence":"additional","affiliation":[{"name":"Department of Pediatric Dentistry, Dental Research Institute, Pusan National University Dental Hospital, Yangsan 50612, Republic of Korea"},{"name":"Department of Pediatric Dentistry, School of Dentistry, Dental and Life Science Institute, Pusan National University, Yangsan 50612, Republic of Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9777-0196","authenticated-orcid":false,"given":"Jonghyun","family":"Shin","sequence":"additional","affiliation":[{"name":"Department of Pediatric Dentistry, Dental Research Institute, Pusan National University Dental Hospital, Yangsan 50612, Republic of Korea"},{"name":"Department of Pediatric Dentistry, School of Dentistry, Dental and Life Science Institute, Pusan National University, Yangsan 50612, Republic of Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0431-5574","authenticated-orcid":false,"given":"Taesung","family":"Jeong","sequence":"additional","affiliation":[{"name":"Department of Pediatric Dentistry, Dental Research Institute, Pusan National University Dental Hospital, Yangsan 50612, Republic of Korea"},{"name":"Department of Pediatric Dentistry, School of Dentistry, Dental and Life Science Institute, Pusan National University, Yangsan 50612, Republic of Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Eungyung","family":"Lee","sequence":"additional","affiliation":[{"name":"Department of Pediatric Dentistry, Dental Research Institute, Pusan National University Dental Hospital, Yangsan 50612, Republic of Korea"},{"name":"Department of Pediatric Dentistry, School of Dentistry, Dental and Life Science Institute, Pusan National University, Yangsan 50612, Republic of Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2025,3,18]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"352","DOI":"10.4103\/0970-9290.84296","article-title":"Cemento-ossifying fibroma","volume":"22","author":"More","year":"2011","journal-title":"Indian J. 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