{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,15]],"date-time":"2026-10-15T15:45:19Z","timestamp":1792079119491,"version":"4.4.0"},"reference-count":37,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2022,12,5]],"date-time":"2022-12-05T00:00:00Z","timestamp":1670198400000},"content-version":"vor","delay-in-days":338,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2022,1,1]],"date-time":"2022-01-01T00:00:00Z","timestamp":1640995200000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["International Journal of Dentistry"],"published-print":{"date-parts":[[2022,1]]},"abstract":"<jats:p>\n                    <jats:italic>Background<\/jats:italic>\n                    . Disturbances during the early tooth development stages may result in the congenital absence of teeth. The purpose of this study was to assess the relationship between hypodontia and Angle\u2019s malocclusions.\n                    <jats:italic>Materials and Methods<\/jats:italic>\n                    . The sample comprised 601 orthodontic patients\u2019 pretreatment records (242 men and 259 women), selected from the achieved orthodontic records. Developmental anomalies of teeth affecting the number were examined on dental panoramic radiographs. Based on Angle\u2019s classification, pretreatment dental casts were assessed and classified into different classes of malocclusion. The relationship between hypodontia and different classes of malocclusion was evaluated using the chi\u2010square test.\n                    <jats:italic>Results<\/jats:italic>\n                    . The prevalence of tooth agenesis was 7.48%, that is, 45 out of 601 samples. There were a total of 72 (0.42%) missing teeth, excluding the third molars. The most frequent missing tooth was the maxillary lateral incisor (35, 48.61%), followed by the mandibular lateral incisor (14, 19.44%), the mandibular central incisor (6, 8.33%), the mandibular second premolar (5, 6.294%), and the maxillary second premolar (4, 5.55%). Hypodontia was more common in the upper jaw. Although hypodontia was mostly seen in Class I malocclusion patients (7.87%), followed by Class II malocclusion patients (6.99%) and least in Class III malocclusion patients. However, there was no significant difference in hypodontia among different classes of malocclusions (\n                    <jats:italic>p<\/jats:italic>\n                    \u2009=\u20090.352).\n                    <jats:italic>Conclusion.<\/jats:italic>\n                    The most frequently missing tooth was the maxillary lateral incisor, followed by lateral and central mandibular incisors and mandibular second premolars, while excluding the third molars. The present study did not find any association between various types of malocclusions and hypodontia.\n                  <\/jats:p>","DOI":"10.1155\/2022\/9595920","type":"journal-article","created":{"date-parts":[[2022,12,5]],"date-time":"2022-12-05T19:20:32Z","timestamp":1670268032000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["Association between Hypodontia and Angle\u2019s Malocclusions among Orthodontic Patients in Kathmandu, Nepal"],"prefix":"10.1155","volume":"2022","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-2510-5699","authenticated-orcid":false,"given":"Sanjay Prasad","family":"Gupta","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8512-0850","authenticated-orcid":false,"given":"Samarika","family":"Dahal","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4395-3536","authenticated-orcid":false,"given":"Khushboo","family":"Goel","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2324-5468","authenticated-orcid":false,"given":"Amar","family":"Bhochhibhoya","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7244-1487","authenticated-orcid":false,"given":"Shristi","family":"Rauniyar","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2022,12,5]]},"reference":[{"key":"e_1_2_9_1_2","doi-asserted-by":"publisher","DOI":"10.1093\/ejo\/16.2.104"},{"key":"e_1_2_9_2_2","doi-asserted-by":"publisher","DOI":"10.2334\/josnusd.52.455"},{"key":"e_1_2_9_3_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1600-0528.2004.00158.x"},{"key":"e_1_2_9_4_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.ajodo.2004.09.024"},{"key":"e_1_2_9_5_2","first-page":"133","article-title":"Distribution of missing teeth and tooth morphology in patients with oligodontia","volume":"59","author":"Schalk-van der Weide Y.","year":"1992","journal-title":"ASDC Journal of Dentistry for Children"},{"key":"e_1_2_9_6_2","doi-asserted-by":"publisher","DOI":"10.2319\/013007-48.1"},{"key":"e_1_2_9_7_2","doi-asserted-by":"publisher","DOI":"10.1037\/0022-3514.39.5.861"},{"key":"e_1_2_9_8_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.ajodo.2008.09.002"},{"key":"e_1_2_9_9_2","doi-asserted-by":"publisher","DOI":"10.1093\/ejo\/cjn111"},{"key":"e_1_2_9_10_2","doi-asserted-by":"publisher","DOI":"10.1563\/aaid-joi-d-11-00022"},{"key":"e_1_2_9_11_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1399-0004.1988.tb02895.x"},{"key":"e_1_2_9_12_2","doi-asserted-by":"publisher","DOI":"10.1002\/ajpa.1330230315"},{"key":"e_1_2_9_13_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.ajodo.2007.03.030"},{"key":"e_1_2_9_14_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.ajodo.2005.06.027"},{"key":"e_1_2_9_15_2","first-page":"31","article-title":"Prevalence of tooth agenesis in orthodontic patient population in Western New York","volume":"79","author":"Guan G.","year":"2013","journal-title":"New York State Dental Journal"},{"key":"e_1_2_9_16_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.archoralbio.2008.04.003"},{"key":"e_1_2_9_17_2","doi-asserted-by":"publisher","DOI":"10.1093\/ejo\/22.5.529"},{"key":"e_1_2_9_18_2","doi-asserted-by":"publisher","DOI":"10.1043\/0003-3219(1998)068<0009:CIDMAH>2.3.CO;2"},{"key":"e_1_2_9_19_2","doi-asserted-by":"publisher","DOI":"10.1093\/ejo\/23.2.145"},{"key":"e_1_2_9_20_2","first-page":"248","article-title":"Classification of malocclusion","volume":"41","author":"Angle E. 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