{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,24]],"date-time":"2026-07-24T12:14:56Z","timestamp":1784895296380,"version":"3.55.0"},"reference-count":43,"publisher":"Georg Thieme Verlag KG","issue":"01","license":[{"start":{"date-parts":[[2019,9,13]],"date-time":"2019-09-13T00:00:00Z","timestamp":1568332800000},"content-version":"vor","delay-in-days":620,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Eur J Dent"],"published-print":{"date-parts":[[2018,1]]},"abstract":"<jats:title>ABSTRACT<\/jats:title><jats:p>\n          Objective: This study aimed to assess the relationship between malocclusion severity and oral health-related quality of life (QoL) of 18 to 25-year-old Iranians who sought orthodontic treatment.<\/jats:p><jats:p>\n          Materials and Methods: A total of 126 patients between 18 and 25 years attending some private orthodontic clinics answered the oral health impact profile-14 (OHIP-14) and a demographic questionnaire. Two calibrated orthodontists recorded the Index of Orthodontic Treatment Need-Dental Health Component (IOTN-DHC) determining the severity of malocclusion (Kappa = 0.8). The IOTN-Aesthetic Component (IOTN-AC) was reported by patients for assessing the perception of their esthetic severity of malocclusion. Logistic regression analysis was used. Level of significance was set at \u237a = 0.05.<\/jats:p><jats:p>\n          Results: The mean score of OHIP-14 was 20.87 \u00b1 8.6. The frequency of patients with no\/slight, borderline, and definite need for orthodontic treatment was determined as 13.4%, 23.8%, and 62.7%, respectively, by IOTN-DHC. There were significant correlations between borderline or definite need treatment and OHIP-14 overall score (P &lt; 0.05). Patients with borderline and definite need for orthodontic treatment had 5 and 21 times lower QoL, respectively, than those with a slight need for orthodontic treatment. Based on IOTN-AC, 50.8% of the patients mentioned slight or no need based on IOTN-AC. No significant association was noted between IOTN-AC and OHIP-14 overall scores.<\/jats:p><jats:p>\n          Conclusions: The results showed negative impact of malocclusion severity on the QoL. This study highlighted the importance of individual assessment of orthodontic patients.<\/jats:p>","DOI":"10.4103\/ejd.ejd_61_17","type":"journal-article","created":{"date-parts":[[2018,3,15]],"date-time":"2018-03-15T01:41:31Z","timestamp":1521078091000},"page":"129-135","source":"Crossref","is-referenced-by-count":22,"title":["Impact of malocclusion severity on oral health-related quality of life in an Iranian young adult population"],"prefix":"10.1055","volume":"12","author":[{"given":"Kazem","family":"Dalaie","sequence":"additional","affiliation":[{"name":"Dental Research Center, Research Institute of Dental Research, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran,"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mohammad","family":"Behnaz","sequence":"additional","affiliation":[{"name":"Department of Orthodontics, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran,"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zahra","family":"Khodabakhshi","sequence":"additional","affiliation":[{"name":"Dentist, Tehran, Iran,"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sepanta","family":"Hosseinpour","sequence":"additional","affiliation":[{"name":"School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"194","published-online":{"date-parts":[[2019,9,13]]},"reference":[{"key":"key-10.4103\/1305-7456.227487-1","first-page":"238","volume-title":"The impact of malocclusion on the quality of life among children and adolescents: A systematic review of quantitative studies","author":"Dimberg","year":"2015","journal-title":"Eur J Orthod"},{"key":"key-10.4103\/1305-7456.227487-2","first-page":"1087","volume-title":"Thirty years of portraying oral health through models: What have we accomplished in oral health-related quality of life research?","author":"Brondani","year":"2014","journal-title":"Qual Life Res"},{"key":"key-10.4103\/1305-7456.227487-3","first-page":"587","volume-title":"Impact of malocclusion and common oral diseases on oral health-related quality of life in young adults","author":"Choi","year":"2015","journal-title":"Am J Orthod Dentofacial Orthop"},{"key":"key-10.4103\/1305-7456.227487-4","first-page":"42","volume-title":"Association of orthodontic treatment needs and oral health-related quality of life in young adults","author":"Hassan","year":"2010","journal-title":"Am J Orthod Dentofac Orthop"},{"key":"key-10.4103\/1305-7456.227487-5","first-page":"704","volume-title":"Occlusal characteristics and quality of life before and after treatment of severe malocclusion","author":"Silvola","year":"2012","journal-title":"Eur J Orthod"},{"key":"key-10.4103\/1305-7456.227487-6","first-page":"477","volume-title":"Malocclusion and occlusal traits in an urban Iranian population.An epidemiological study of 11- to 14-year-old children","author":"Borzabadi-Farahani","year":"2009","journal-title":"Eur J Orthod"},{"key":"key-10.4103\/1305-7456.227487-7","first-page":"43","volume-title":"Quality of life in patients with severe malocclusion before treatment","author":"Rusanen","year":"2010","journal-title":"Eur J Orthod"},{"key":"key-10.4103\/1305-7456.227487-8","first-page":"585","volume-title":"The impact of malocclusion\/orthodontic treatment need on the quality of life.A systematic review","author":"Liu","year":"2009","journal-title":"Angle Orthod"},{"key":"key-10.4103\/1305-7456.227487-9","first-page":"13","volume-title":"Need of minimal important difference for oral health-related quality of life measures","author":"Masood","year":"2014","journal-title":"J Public Health Dent"},{"key":"key-10.4103\/1305-7456.227487-10","first-page":"25","volume-title":"Impact of malocclusion on oral health related quality of life in young 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