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A total of 6389 children were evaluated and systematically selected on the National Children's Vaccination day. Calibrated examiners performed the children's oral examination for <jats:styled-content style=\"fixed-case\">TCI<\/jats:styled-content> according to Andreasen's criteria. Chi\u2010square test for trends was used to perform comparative analysis. Poisson regression was used to associate <jats:styled-content style=\"fixed-case\">TCI<\/jats:styled-content> to socio\u2010demographic and clinical variables.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>The prevalence of <jats:styled-content style=\"fixed-case\">TCI<\/jats:styled-content> in 2002 for preschool children aged 1, 2, 3 and 4 years was 4.5%, 11.4%, 14% and 13.9%, respectively, and the prevalence in 2012 for the same age groups was 10.4%, 15.9%, 25.7% and 28.1%, respectively. There was a significant increase in the prevalence of <jats:styled-content style=\"fixed-case\">TCI<\/jats:styled-content> for all age groups and for the total sample (<jats:italic>P<\/jats:italic> &lt; 0.05). Children's age was associated with <jats:styled-content style=\"fixed-case\">TCI<\/jats:styled-content> in all the surveys. Male gender, presence of anterior open bite and inadequate lip coverage were associated with <jats:styled-content style=\"fixed-case\">TCI<\/jats:styled-content> in some surveys along the years (<jats:italic>P<\/jats:italic> &lt; 0.05).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>This study has shown an increase of <jats:styled-content style=\"fixed-case\">TCI<\/jats:styled-content> prevalence in Brazilian preschool children in the last 10 years and its association with children's age, male gender, presence of anterior open bite and inadequate lip coverage. However, this increase does not seem to be relevant to decisions on public policy.<\/jats:p><\/jats:sec>","DOI":"10.1111\/edt.12255","type":"journal-article","created":{"date-parts":[[2016,1,22]],"date-time":"2016-01-22T14:09:12Z","timestamp":1453471752000},"page":"274-280","source":"Crossref","is-referenced-by-count":31,"title":["Trends in the prevalence of traumatic crown injuries and associated factors in Brazilian preschool children: 10\u2010year observational data"],"prefix":"10.1111","volume":"32","author":[{"given":"Gustavo","family":"Tello","sequence":"first","affiliation":[{"name":"Department of Orthodontics and Pediatric Dentistry School of Dentistry Universidade de S\u00e3o Paulo S\u00e3o Paulo SP Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Gabriela Cunha","family":"Bonini","sequence":"additional","affiliation":[{"name":"Faculdade S\u00e3o Leopoldo Mandic School of Dentistry Campinas SP Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Christiana","family":"Murakami","sequence":"additional","affiliation":[{"name":"Department of Orthodontics and Pediatric Dentistry School of Dentistry Universidade de S\u00e3o Paulo S\u00e3o Paulo SP Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jenny","family":"Abanto","sequence":"additional","affiliation":[{"name":"Department of Orthodontics and Pediatric Dentistry School of Dentistry Universidade de S\u00e3o Paulo S\u00e3o Paulo SP Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Luciana Butini","family":"Oliveira","sequence":"additional","affiliation":[{"name":"Faculdade S\u00e3o Leopoldo Mandic School of Dentistry Campinas SP Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Marcelo","family":"B\u00f6necker","sequence":"additional","affiliation":[{"name":"Department of Orthodontics and Pediatric Dentistry School of Dentistry Universidade de S\u00e3o Paulo S\u00e3o Paulo SP Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2016,1,22]]},"reference":[{"key":"e_1_2_7_2_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1600-9657.2008.00696.x"},{"key":"e_1_2_7_3_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1600-9657.2011.01032.x"},{"key":"e_1_2_7_4_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1600-9657.2008.00754.x"},{"key":"e_1_2_7_5_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1600-9657.2005.00428.x"},{"key":"e_1_2_7_6_1","doi-asserted-by":"publisher","DOI":"10.1186\/1477-7525-9-78"},{"key":"e_1_2_7_7_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1600-0528.2012.00672.x"},{"key":"e_1_2_7_8_1","doi-asserted-by":"publisher","DOI":"10.1111\/cdoe.12035"},{"key":"e_1_2_7_9_1","doi-asserted-by":"publisher","DOI":"10.1111\/ipd.12092"},{"key":"e_1_2_7_10_1","volume-title":"Oral health surveys. 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