{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,15]],"date-time":"2026-10-15T17:11:35Z","timestamp":1792084295682,"version":"4.4.0"},"reference-count":19,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2006,2,15]],"date-time":"2006-02-15T00:00:00Z","timestamp":1139961600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Dental Traumatology"],"published-print":{"date-parts":[[2006,4]]},"abstract":"<jats:p><jats:bold>Abstract\u2002\u2013\u2002<\/jats:bold> An epidemiological study of traumatic intrusion of permanent teeth was performed on 216 teeth in 151 patients treated over a 50\u2010year period at a major trauma center in Denmark (Copenhagen). This analysis showed that intrusion of permanent teeth was of rare injury only affecting 1.9% of traumatic injuries involving permanent teeth. The main etiologic factor appeared to be falling which resulted in axial impacts on maxillary or mandibular teeth. The most common injury patterns were intrusion without additional injuries (33.5%) and intrusion with crown fractures (60.5%). A few cases were combinations of intrusion and either crown\/root\u2010fractures or root fractures (6%). Most often one tooth was intruded (46.3%), followed by two teeth (32.4% ) and three or more teeth (21.3%). The majority of intruded teeth were displaced 2\u20138\u2003mm. The age group of 6\u201312\u2003years of age was most frequently involved and boys appeared to experience intrusion injuries more frequently than girls, and at an earlier age. Maxillary central and lateral incisors are the primary victims of intrusions and this seems to be identical to other trauma types and is possibly related to the known exposure to impacts of maxillary incisors. The reliability of clinical findings, such as lack of mobility (81.8%), metallic percussion tone (72.5%), and no pain to percussion (66%) was reasonably high, whereas a radiographic feature such as the obliteration of the periodontal ligament space appeared to be only a partly reliable diagnostic tool (52%).<\/jats:p>","DOI":"10.1111\/j.1600-9657.2006.00421.x","type":"journal-article","created":{"date-parts":[[2006,2,15]],"date-time":"2006-02-15T15:07:46Z","timestamp":1140016066000},"page":"83-89","source":"Crossref","is-referenced-by-count":121,"title":["Traumatic intrusion of permanent teeth. Part 1. An epidemiological study of 216 intruded permanent teeth"],"prefix":"10.1111","volume":"22","author":[{"given":"Jens Ove","family":"Andreasen","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Leif K.","family":"Bakland","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Rannva C.","family":"Matras","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Francis Meriam","family":"Andreasen","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2006,2,15]]},"reference":[{"key":"e_1_2_6_2_2","first-page":"340","volume-title":"Textbook and color atlas of traumatic injuries to the teeth","author":"Andreasen JO","year":"1994"},{"key":"e_1_2_6_3_2","first-page":"657","article-title":"Om prognosen for unge t\u00e6nder med l\u00f8sning efter akut mekanisk l\u00e6sion","volume":"61","author":"Skieller V","year":"1957","journal-title":"Tandl\u00e6gebladet"},{"key":"e_1_2_6_4_2","first-page":"99","article-title":"Zur Prognose zentral luxierte Frontz\u00e4hne im Wechselgebi\u00df","volume":"21","author":"Tr\u00e4nkmann Von J","year":"1966","journal-title":"Dtsch Zahn\u00e4rztl Z"},{"key":"e_1_2_6_5_2","first-page":"486","article-title":"Clinical follow\u2010up study of permanent incisors with intrusive luxation after acute trauma","volume":"62","author":"Jacobsen I","year":"1983","journal-title":"J Dent Res"},{"key":"e_1_2_6_6_2","first-page":"44","volume-title":"Proceedings of the 2nd International Conference on Dental Trauma","author":"Jacobsen I","year":"1991"},{"key":"e_1_2_6_7_2","doi-asserted-by":"publisher","DOI":"10.1034\/j.1600-9657.2000.016001034.x"},{"key":"e_1_2_6_8_2","doi-asserted-by":"publisher","DOI":"10.1038\/sj.bdj.4807449"},{"key":"e_1_2_6_9_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1600-9657.1985.tb00583.x"},{"key":"e_1_2_6_10_2","first-page":"9","article-title":"An analysis of outcomes following intrusion of permanent maxillary incisors in children","volume":"7","author":"Barrett E","year":"1999","journal-title":"Int J Paediatr Dent"},{"key":"e_1_2_6_11_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.ajodo.2003.06.019"},{"key":"e_1_2_6_12_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1600-9657.1985.tb00651.x"},{"key":"e_1_2_6_13_2","first-page":"291","article-title":"Influence of splints and temporary crowns upon electric and thermal pulp testing procedures","volume":"84","author":"Fulling H\u2010J","year":"1976","journal-title":"Scand J Dent Res"},{"key":"e_1_2_6_14_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0300-9785(72)80042-5"},{"key":"e_1_2_6_15_2","first-page":"15","article-title":"Incidence of traumatic tooth injuries in children and adolescents in the county of V\u00e2stmanland. 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