{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,5]],"date-time":"2026-06-05T21:39:42Z","timestamp":1780695582883,"version":"3.54.1"},"reference-count":22,"publisher":"Wiley","issue":"3","license":[{"start":{"date-parts":[[2020,9,18]],"date-time":"2020-09-18T00:00:00Z","timestamp":1600387200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["J Esthet Restor Dent"],"published-print":{"date-parts":[[2021,4]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Objective<\/jats:title><jats:p>Proportionate existence of the lip framework and gingival scaffold have a critical role in smile esthetics. So, the present study was conducted to assess and correlate the nasolabial angle (NLA) and lip length (LL) with gingival smile line (GSL) and interdental smile line (ISL).<\/jats:p><\/jats:sec><jats:sec><jats:title>Materials and methods<\/jats:title><jats:p>One hundred and twenty periodontally healthy patients with an age group 20 to 40\u2009years were equally divided based on gender into two groups. The parameters of NLA, LL, GSL, ISL, amount of midfacial gingiva, and interdental papilla display were recorded in the maxillary anterior sextant.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>The mean values of NLA and LL at rest and on smiling were found to be higher in males. Majority of study population exhibited Low GSL (LGSL) and High ISL (HISL). On correlation of LL with GSL, the difference in the mean values between males and females for LGSL were highly significant, for HGSL and Cupid's bow the values were significant. The mean values of midfacial gingiva and interdental papilla visible in females was greater than males.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>The NLA and LL influence the quantum of gingival exhibit in maxillary anterior teeth with a definitive sexual dimorphism and this can be considered a valuable reference point in smile designing procedures.<\/jats:p><\/jats:sec><jats:sec><jats:title>Clinical significance<\/jats:title><jats:p>The quantum of gingival exhibit on smiling is an important feature in periodontal, implant, restorative, and smile designing procedures in patients possessing HGSL and HISL category of GSL and ISL. It is indicated that the lip length is correlated with the amount of gingival tissue display both in midfacial as well as interdental region and which needs to be considered by the clinician.<\/jats:p><\/jats:sec>","DOI":"10.1111\/jerd.12657","type":"journal-article","created":{"date-parts":[[2020,9,18]],"date-time":"2020-09-18T09:31:05Z","timestamp":1600421465000},"page":"503-509","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Association of the nasolabial angle and lip length with the gingival and interdental smile line\u2014A gender based evaluation"],"prefix":"10.1111","volume":"33","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-5735-5908","authenticated-orcid":false,"given":"Abhay P.","family":"Kolte","sequence":"first","affiliation":[{"name":"Department of Periodontology and Implant Dentistry VSPM Dental College and Research Centre  Nagpur India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6386-1671","authenticated-orcid":false,"given":"Rajashri A.","family":"Kolte","sequence":"additional","affiliation":[{"name":"Department of Periodontology and Implant Dentistry VSPM Dental College and Research Centre  Nagpur India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Gopal K.","family":"Samarth","sequence":"additional","affiliation":[{"name":"Department of Periodontology and Implant Dentistry VSPM Dental College and Research Centre  Nagpur India"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2020,9,18]]},"reference":[{"key":"e_1_2_7_2_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1600-0757.1996.tb00179.x"},{"key":"e_1_2_7_3_1","doi-asserted-by":"publisher","DOI":"10.11607\/prd.2464"},{"key":"e_1_2_7_4_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ajodo.2011.07.017"},{"key":"e_1_2_7_5_1","doi-asserted-by":"publisher","DOI":"10.1038\/sj.bdj.4812521"},{"key":"e_1_2_7_6_1","first-page":"382","article-title":"The effect of gender on tooth and gingival display in the anterior region at rest and during smiling","volume":"4","author":"Al\u2010Habahbeh R","year":"2009","journal-title":"Eur J Esthet Dent"},{"key":"e_1_2_7_7_1","first-page":"221","article-title":"Smile analysis and design in the digital era","volume":"36","author":"Ackerman MB","year":"2002","journal-title":"J Clin Orthod"},{"key":"e_1_2_7_8_1","first-page":"32","article-title":"Tooth and gingival display in the anterior region at rest and during smiling of different age groups: a comparative study","volume":"20","author":"Al\u2010Habahbeh R","year":"2013","journal-title":"J R Med Serv"},{"key":"e_1_2_7_9_1","doi-asserted-by":"publisher","DOI":"10.1080\/00016350802060617"},{"key":"e_1_2_7_10_1","first-page":"181","article-title":"Association between central papilla recession and gingival and interdental smile line","volume":"49","author":"Kolte AP","year":"2018","journal-title":"Quintessence Int"},{"key":"e_1_2_7_11_1","first-page":"375","article-title":"Maxillary anterior papilla display during smiling: a clinical study of the interdental smile line","volume":"32","author":"Hochman MN","year":"2012","journal-title":"Int J Periodontics Restorative Dent"},{"key":"e_1_2_7_12_1","doi-asserted-by":"publisher","DOI":"10.1111\/jerd.12517"},{"key":"e_1_2_7_13_1","doi-asserted-by":"publisher","DOI":"10.3109\/00016356408993968"},{"key":"e_1_2_7_14_1","doi-asserted-by":"publisher","DOI":"10.3109\/00016356309011240"},{"key":"e_1_2_7_15_1","doi-asserted-by":"publisher","DOI":"10.1902\/jop.1998.69.10.1124"},{"key":"e_1_2_7_16_1","doi-asserted-by":"publisher","DOI":"10.1111\/jre.12057"},{"key":"e_1_2_7_17_1","first-page":"761","article-title":"Assessment of gingival zenith position and its level relative to age and gender in maxillary anterior teeth","volume":"49","author":"Kolte AP","year":"2018","journal-title":"Quintessence Int"},{"key":"e_1_2_7_18_1","doi-asserted-by":"publisher","DOI":"10.4103\/0972-124X.138703"},{"key":"e_1_2_7_19_1","first-page":"184","article-title":"Assessment of tooth and gingival display in maxillary anterior teeth and premolars relative to gingival and interdental smile lines","volume":"15","author":"Kolte AP","year":"2020","journal-title":"Int J Esthet Dent"},{"key":"e_1_2_7_20_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.prosdent.2005.10.007"},{"key":"e_1_2_7_21_1","first-page":"283","article-title":"A multicenter interracial study of facial appearance. 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