{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,5]],"date-time":"2026-06-05T21:39:40Z","timestamp":1780695580599,"version":"3.54.1"},"reference-count":74,"publisher":"The Angle Orthodontist (EH Angle Education & Research Foundation)","issue":"1","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2016,1]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Objective:\u2002<\/jats:title>\n                    <jats:p>To identify the ideal ratios between the widths of the maxillary arch, mouth, and face, respectively, and to determine the range of acceptable esthetic variations based on these ideal ratios.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Materials and Methods:\u2002<\/jats:title>\n                    <jats:p>\n                      A photograph of a young female with a harmonious smile was selected and digitally altered to produce two sets of images. The first image showed an altered intercanine width, while the second one showed an altered oral fissure breadth. These alterations were independently rated by judges, including 23 orthodontists and 30 undergraduates. The Mann-Whitney\n                      <jats:italic>U<\/jats:italic>\n                      -test was used to compare the scores given by male and female judges and those given by professional and nonprofessional judges.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results:\u2002<\/jats:title>\n                    <jats:p>The following ideal transverse ratios were determined: intercanine width\/oral fissure breadth, 0.638; oral fissure breadth\/interparopia width: the distance between left and right paropia, 0.617; and intercanine width\/face width at the level of the labial commissures, 0.300. A range of \u221210% to +10% was proposed as the thresholds of esthetic smile evaluations. It was shown that gender of the raters had no effect on the rating of photographs, nor were there any statistically significant differences between the professional and nonprofessional judges\u2019 ratings.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions:\u2002<\/jats:title>\n                    <jats:p>Balanced transverse relationships in the facial region are important for smile esthetics, and there is a wide range of esthetically acceptable variations in the transverse relationships between the maxillary arch, mouth, and face.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.2319\/101514.1","type":"journal-article","created":{"date-parts":[[2015,4,29]],"date-time":"2015-04-29T10:39:47Z","timestamp":1430303987000},"page":"135-141","source":"Crossref","is-referenced-by-count":18,"title":["Effects of transverse relationships between maxillary arch, mouth, and face on smile esthetics"],"prefix":"10.2319","volume":"86","author":[{"given":"Ke","family":"Zhang","sequence":"first","affiliation":[{"name":"Lecturer, Department of Orthodontics, School of Stomatology, Capital Medical University, Beijing, China."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lan","family":"Huang","sequence":"additional","affiliation":[{"name":"Lecturer, Department of Orthodontics, School of Stomatology, Chongqing Medical University, Chongqing, China."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lin","family":"Yang","sequence":"additional","affiliation":[{"name":"Lecturer, Department of Stomatology, The Third People\u2019s Hospital of Chengdu, Sichuan, China."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Li","family":"Xu","sequence":"additional","affiliation":[{"name":"Graduate student, State Key Laboratory of Oral Diseases (Sichuan University); Department of Orthodontics, West China Stomatological Hospital, Sichuan University, Sichuan, China."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chaoran","family":"Xue","sequence":"additional","affiliation":[{"name":"Graduate student, State Key Laboratory of Oral Diseases (Sichuan University); Department of Orthodontics, West China Stomatological Hospital, Sichuan University, Sichuan, China."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zichao","family":"Xiang","sequence":"additional","affiliation":[{"name":"Graduate student, State Key Laboratory of Oral Diseases (Sichuan University); Department of Orthodontics, West China Stomatological Hospital, Sichuan University, Sichuan, China."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mengyuan","family":"Zhao","sequence":"additional","affiliation":[{"name":"Graduate student, State Key Laboratory of Oral Diseases (Sichuan University); Department of Orthodontics, West China Stomatological Hospital, Sichuan University, Sichuan, China."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Song","family":"Li","sequence":"additional","affiliation":[{"name":"Professor, Department of Orthodontics, School of Stomatology, Capital Medical University, Beijing, China."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yuxing","family":"Bai","sequence":"additional","affiliation":[{"name":"Professor, Department of Orthodontics, School of Stomatology, Capital Medical University, Beijing, China."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ding","family":"Bai","sequence":"additional","affiliation":[{"name":"Professor and Chair, Department of Orthodontics, West China Stomatological Hospital; State Key Laboratory of Oral Diseases, Sichuan University, Sichuan, China."}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1164","reference":[{"key":"r1","series-title":"Contemporary orthodontics","author":"Fields\n              HW,","year":"2013","unstructured":"Fields\n              HW, \n            \n              Sarver\n              DM, \n            \n              Proffit\n              WR. \n          \n          Contemporary orthodontics. 5th ed. 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J Esthet Restor Dent. 2009;21:113\u2013120."},{"key":"r12","series-title":"Eur J Orthod","first-page":"419","article-title":"Effects of retraction of anterior teeth and initial soft tissue variables on lip changes in Japanese adults","volume":"33","author":"Hayashida\n              H,","year":"2011","unstructured":"Hayashida\n              H, \n            \n              Ioi\n              H, \n            \n              Nakata\n              S, \n            \n              Takahashi\n              I, \n            \n              Counts\n              AL. \n          \n          Effects of retraction of anterior teeth and initial soft tissue variables on lip changes in Japanese adults. Eur J Orthod. 2011;33:419\u2013426."},{"key":"r13","series-title":"Angle Orthod","first-page":"486","article-title":"Analysis of smile esthetics in American Board of Orthodontics patients","volume":"84","author":"Akyalcin\n              S,","year":"2014","unstructured":"Akyalcin\n              S, \n            \n              Frels\n              LK, \n            \n              English\n              JD, \n            \n              Laman\n              S. \n          \n          Analysis of smile esthetics in American Board of Orthodontics patients. Angle Orthod. 2014;84:486\u2013491."},{"key":"r14","series-title":"Angle Orthod","first-page":"153","article-title":"Influence of orthodontic treatment, midline position, buccal corridor and smile arc on smile attractiveness","volume":"81","author":"Janson\n              G,","year":"2011","unstructured":"Janson\n              G, \n            \n              Branco\n              NC, \n            \n              Fernandes\n              TM, \n            \n              Sathler\n              R, \n            \n              Garib\n              D, \n            \n              Lauris\n              JR. \n          \n          Influence of orthodontic treatment, midline position, buccal corridor and smile arc on smile attractiveness. Angle Orthod. 2011;81:153\u2013161."},{"key":"r15","series-title":"J Craniofac Surg","first-page":"909","article-title":"Alteration of gingival exposure and its aesthetic effect","volume":"22","author":"Guo\n              J,","year":"2011","unstructured":"Guo\n              J, \n            \n              Gong\n              H, \n            \n              Tian\n              W, \n            \n              Tang\n              W, \n            \n              Bai\n              D. \n          \n          Alteration of gingival exposure and its aesthetic effect. 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Angle Orthod. 2006;76:557\u2013563."},{"key":"r21","series-title":"Prog Orthod","first-page":"56","article-title":"The smile buccal corridors: aesthetic value for dentists and laypersons","volume":"7","author":"Gracco\n              A,","year":"2006","unstructured":"Gracco\n              A, \n            \n              Cozzani\n              M, \n            \n              D\u2019Elia\n              L, \n            \n              Manfrini\n              M, \n            \n              Peverada\n              C, \n            \n              Siciliani\n              G. \n          \n          The smile buccal corridors: aesthetic value for dentists and laypersons. 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