{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,29]],"date-time":"2026-05-29T16:08:31Z","timestamp":1780070911401,"version":"3.54.0"},"reference-count":78,"publisher":"The Angle Orthodontist (EH Angle Education & Research Foundation)","issue":"1","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2014,1]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Objective:<\/jats:title>\n                    <jats:p>To assess potential associations between maxillary canine impaction (MCI) and agenesis status as well as between MCI and gender.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Materials and Methods:<\/jats:title>\n                    <jats:p>The records of 182 orthodontic patients with agenesis (excluding the third molars) and 630 orthodontic patients without agenesis were examined. Diagnosis of MCI was based on pretreatment panoramic radiographs. Maxillary canines that had not erupted as a result of physical barrier or deflection in the eruption path at the dental age of at least 12\u00a0years were considered impacted. Logistic regression analysis was used to test for the associations of interest.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results:<\/jats:title>\n                    <jats:p>\n                      MCI was detected in 5.6% (n \u200a=\u200a 35) of the nonagenesis group (28 female and 7 male participants) and in 18.1% (n \u200a=\u200a 33) of the agenesis group (20 female and 13 male participants). Bilateral impaction was detected in 12 patients (34.3%) of the nonagenesis group and in 11 patients (33.3%) of the agenesis group. There was evidence that maxillary lateral incisor agenesis (odds ratio \u200a=\u200a 5.1, 95% confidence interval [CI] 2.5\u201310.5,\n                      <jats:italic>P<\/jats:italic>\n                      &lt; .001) and second premolar agenesis (odds ratio \u200a=\u200a 2.6, 95% CI 1.0\u20136.6,\n                      <jats:italic>P<\/jats:italic>\n                      \u200a=\u200a .042) were significant MCI predictors after adjusting for gender. The odds of MCI were 69% higher in female versus male subjects after adjusting for agenesis status (95% CI 0.97\u20132.92,\n                      <jats:italic>P<\/jats:italic>\n                      \u200a=\u200a .063).\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions:<\/jats:title>\n                    <jats:p>This study indicates that there is evidence that agenesis status is a strong predictor of MCI, whereas gender is a weak predictor of MCI. Caution should be exercised in interpreting the results because of the observational nature of the present study.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.2319\/022413-155.1","type":"journal-article","created":{"date-parts":[[2013,7,10]],"date-time":"2013-07-10T09:36:37Z","timestamp":1373448997000},"page":"11-17","source":"Crossref","is-referenced-by-count":12,"title":["Maxillary canine impaction in orthodontic patients with and without agenesis: A cross-sectional radiographic study"],"prefix":"10.2319","volume":"84","author":[{"given":"Evangelia","family":"Lempesi","sequence":"first","affiliation":[{"name":"Postgraduate Student, Orthodontic Department, School of Dentistry, University of Athens, Athens, Greece."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Marina","family":"Karamolegkou","sequence":"additional","affiliation":[{"name":"Private Practice in Orthodontics, Athens, Greece."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nikolaos","family":"Pandis","sequence":"additional","affiliation":[{"name":"Private Practice, Corfu, Greece; Visiting Assistant Professor, Department of Orthodontics and Dentofacial Orthopedics, Dental School\/Medical Faculty, University of Bern, Bern, Switzerland."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Maria","family":"Mavragani","sequence":"additional","affiliation":[{"name":"Lecturer, Orthodontic Department, School of Dentistry, University of Athens, Athens, Greece."}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1164","reference":[{"key":"i0003-3219-84-1-11-b01","series-title":"Dent J","first-page":"262","article-title":"Studies of permanent tooth anomalies in 7886 Canadian individuals, I. 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Eur J Orthod. 1990;12:135\u2013139."},{"key":"i0003-3219-84-1-11-b13","series-title":"Am J Orthod Dentofacial Orthop","first-page":"441","article-title":"Prevalence of tooth agenesis and peg-shaped maxillary lateral incisor associated with palatally displaced canine (PDC) anomaly","volume":"110","author":"Peck\n              S,","year":"1996","unstructured":"Peck\n              S, \n            \n              Peck\n              L, \n            \n              Kataja\n              M. \n          \n          Prevalence of tooth agenesis and peg-shaped maxillary lateral incisor associated with palatally displaced canine (PDC) anomaly. 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Community Dent Oral Epidemiol. 1986;14:172\u2013176."},{"key":"i0003-3219-84-1-11-b39","series-title":"Am J Orthod Dentofacial Orthop","first-page":"218","article-title":"Buccal ectopia of maxillary canines with no crowding","volume":"136","author":"Chaushu\n              S,","year":"2009","unstructured":"Chaushu\n              S, \n            \n              Bongart\n              M, \n            \n              Aksoy\n              A, \n            \n              Ben-Bassat\n              Y, \n            \n              Becker\n              A. \n          \n          Buccal ectopia of maxillary canines with no crowding. Am J Orthod Dentofacial Orthop. 2009;136:218\u2013223."},{"key":"i0003-3219-84-1-11-b01","series-title":"Dent J","first-page":"262","article-title":"Studies of permanent tooth anomalies in 7886 Canadian individuals, I. 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