{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,9]],"date-time":"2026-09-09T20:31:29Z","timestamp":1788985889990,"version":"build-2803163510"},"reference-count":55,"publisher":"Wiley","issue":"11","license":[{"start":{"date-parts":[[2025,8,20]],"date-time":"2025-08-20T00:00:00Z","timestamp":1755648000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["J Clinic Periodontology"],"published-print":{"date-parts":[[2025,11]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Aim<\/jats:title>\n                    <jats:p>To evaluate the 3\u2010year clinical and radiographic outcomes of implant\u2010supported restorations with different emergence profiles (CONVEX vs. CONCAVE).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Materials and Methods<\/jats:title>\n                    <jats:p>\n                      A total of 47 patients received a single implant in the aesthetic zone and were allocated to one of three groups: (1) CONVEX: customized provisional with a convex emergence profile (\n                      <jats:italic>n<\/jats:italic>\n                      \u2009=\u200915); (2) CONCAVE: customized provisional with a concave profile (\n                      <jats:italic>n<\/jats:italic>\n                      \u2009=\u200916); (3) Control: no provisional restoration (\n                      <jats:italic>n<\/jats:italic>\n                      \u2009=\u200916). Final crowns in groups CONVEX and CONCAVE were fabricated to replicate the emergence profile of the respective provisional restorations. Follow\u2010ups were performed at baseline, 6\u2009months, 1\u2009year and 3\u2009years. The primary outcome was mid\u2010facial mucosal recession and secondary outcomes included clinical, radiographic and aesthetic outcomes as well as profilometric measurements. Multivariable logistic regressions and mixed\u2010effects models were used to compare the groups.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      Out of the 47 patients originally included, 42 were available for re\u2010examination at 3\u2009years follow\u2010up. At 3\u2009years, the frequency of mucosal recession amounted to 46.7% in group CONVEX, 13.3% in group CONCAVE and 40.0% in group Control. Adjusted logistic regression models revealed that the CONVEX group was significantly more likely to show recessions at 3\u2009years (odds ratios [ORs]: 7.3, 95% CI: 1.02\u201352.14,\n                      <jats:italic>p<\/jats:italic>\n                      \u2009=\u20090.048) when compared with the CONCAVE group. No statistically significant difference in recession frequency was observed between the CONVEX and CONCAVE groups between the 1\u2010 and 3\u2010year follow\u2010ups (OR: 3.7, 95% CI: 0.30\u201346.09,\n                      <jats:italic>p<\/jats:italic>\n                      \u2009=\u20090.303).\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>The emergence profile design significantly influences soft tissue stability predominantly within the first year after crown insertion. Whenever clinically feasible, a CONCAVE profile is preferable in the aesthetic zone to maintain the level of the mid\u2010facial mucosal margin and reduce the frequency of recessions.<\/jats:p>\n                    <jats:p>\n                      <jats:bold>Trial Registration:<\/jats:bold>\n                      German Clinical Trials Register: DRKS00009420\n                    <\/jats:p>\n                  <\/jats:sec>","DOI":"10.1111\/jcpe.70018","type":"journal-article","created":{"date-parts":[[2025,8,21]],"date-time":"2025-08-21T05:48:59Z","timestamp":1755755339000},"page":"1605-1615","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":17,"title":["Convex Versus Concave Emergence Profile of Implant\u2010Supported Crowns in the Aesthetic Zone: 3\u2010Year Results of a Randomized Controlled Trial"],"prefix":"10.1111","volume":"52","author":[{"given":"Janina","family":"Endres","sequence":"first","affiliation":[{"name":"Clinic of Reconstructive Dentistry University of Zurich  Zurich Switzerland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5832-7327","authenticated-orcid":false,"given":"Franz J.","family":"Strauss","sequence":"additional","affiliation":[{"name":"Clinic of Reconstructive Dentistry University of Zurich  Zurich Switzerland"},{"name":"Universidad Autonoma de Chile  Santiago Chile"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Marina","family":"Siegenthaler","sequence":"additional","affiliation":[{"name":"Clinic of Reconstructive Dentistry University of Zurich  Zurich Switzerland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nadja","family":"Naenni","sequence":"additional","affiliation":[{"name":"Clinic of Reconstructive Dentistry University of Zurich  Zurich Switzerland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2055-1320","authenticated-orcid":false,"given":"Ronald E.","family":"Jung","sequence":"additional","affiliation":[{"name":"Clinic of Reconstructive Dentistry University of Zurich  Zurich Switzerland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1764-7447","authenticated-orcid":false,"given":"Daniel S.","family":"Thoma","sequence":"additional","affiliation":[{"name":"Clinic of Reconstructive Dentistry University of Zurich  Zurich Switzerland"},{"name":"Department of Periodontology, Research Institute for Periodontal Regeneration Yonsei University College of Dentistry  Seoul Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2025,8,20]]},"reference":[{"key":"e_1_2_10_2_1","doi-asserted-by":"publisher","DOI":"10.1111\/cid.13102"},{"key":"e_1_2_10_3_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1600\u2010051x.1984.tb01347.x"},{"key":"e_1_2_10_4_1","doi-asserted-by":"publisher","DOI":"10.1111\/clr.14389"},{"key":"e_1_2_10_5_1","doi-asserted-by":"publisher","DOI":"10.1902\/jop.2009.080435"},{"key":"e_1_2_10_6_1","doi-asserted-by":"publisher","DOI":"10.1111\/jcpe.12957"},{"key":"e_1_2_10_7_1","doi-asserted-by":"publisher","DOI":"10.1034\/j.1600\u20100501.1991.020206.x"},{"issue":"7","key":"e_1_2_10_8_1","first-page":"745","article-title":"Single Implant Restorations: Prosthetically Induced Soft Tissue Topography","volume":"9","author":"Bichacho N.","year":"1997","journal-title":"Practical Periodontics and Aesthetic Dentistry"},{"key":"e_1_2_10_9_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.prosdent.2020.09.018"},{"key":"e_1_2_10_10_1","doi-asserted-by":"publisher","DOI":"10.11607\/prd.3697"},{"key":"e_1_2_10_11_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1600\u20100501.2009.01724.x"},{"key":"e_1_2_10_12_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1600\u2010051X.2012.01888.x"},{"key":"e_1_2_10_13_1","doi-asserted-by":"publisher","DOI":"10.1111\/prd.12004"},{"issue":"5","key":"e_1_2_10_14_1","first-page":"897","article-title":"Single\u2010Tooth Replacement in the Anterior Maxilla by Means of Immediate Implantation and Provisionalization: A Review","volume":"23","author":"De Rouck T.","year":"2008","journal-title":"International Journal of Oral and Maxillofacial Implants"},{"key":"e_1_2_10_15_1","doi-asserted-by":"publisher","DOI":"10.1111\/jcpe.13971"},{"key":"e_1_2_10_16_1","doi-asserted-by":"publisher","DOI":"10.1111\/jerd.13197"},{"key":"e_1_2_10_17_1","doi-asserted-by":"publisher","DOI":"10.11607\/prd.5126"},{"key":"e_1_2_10_18_1","doi-asserted-by":"publisher","DOI":"10.3758\/bf03193146"},{"key":"e_1_2_10_19_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1600\u20100501.2008.01601.x"},{"key":"e_1_2_10_20_1","doi-asserted-by":"publisher","DOI":"10.1111\/jerd.12714"},{"key":"e_1_2_10_21_1","doi-asserted-by":"publisher","DOI":"10.11607\/prd.4422"},{"key":"e_1_2_10_22_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1600\u20100765.1996.tb00500.x"},{"key":"e_1_2_10_23_1","doi-asserted-by":"publisher","DOI":"10.1111\/jcpe.13823"},{"issue":"4","key":"e_1_2_10_24_1","first-page":"326","article-title":"Regeneration of Gingival Papillae After Single\u2010Implant Treatment","volume":"17","author":"Jemt T.","year":"1997","journal-title":"International Journal of Periodontics & Restorative Dentistry"},{"issue":"1","key":"e_1_2_10_25_1","first-page":"20","article-title":"Restoring the Gingival Contour by Means of Provisional Resin Crowns After Single\u2010Implant Treatment","volume":"19","author":"Jemt T.","year":"1999","journal-title":"International Journal of Periodontics and Restorative Dentistry"},{"key":"e_1_2_10_26_1","doi-asserted-by":"publisher","DOI":"10.1111\/jcpe.14166"},{"key":"e_1_2_10_27_1","doi-asserted-by":"publisher","DOI":"10.1111\/jcpe.12829"},{"key":"e_1_2_10_28_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1600\u20100501.2006.001366.x"},{"key":"e_1_2_10_29_1","doi-asserted-by":"publisher","DOI":"10.1111\/clr.13493"},{"key":"e_1_2_10_30_1","doi-asserted-by":"publisher","DOI":"10.11607\/prd.5164"},{"key":"e_1_2_10_31_1","doi-asserted-by":"publisher","DOI":"10.1111\/clr.14077"},{"key":"e_1_2_10_32_1","doi-asserted-by":"publisher","DOI":"10.1111\/jerd.13378"},{"key":"e_1_2_10_33_1","doi-asserted-by":"publisher","DOI":"10.1111\/clr.14408"},{"key":"e_1_2_10_34_1","doi-asserted-by":"publisher","DOI":"10.1111\/prd.12584"},{"key":"e_1_2_10_35_1","doi-asserted-by":"publisher","DOI":"10.1111\/jerd.12147"},{"key":"e_1_2_10_36_1","doi-asserted-by":"publisher","DOI":"10.1001\/jama.2015.10516"},{"key":"e_1_2_10_37_1","doi-asserted-by":"publisher","DOI":"10.1111\/jerd.13306"},{"key":"e_1_2_10_38_1","doi-asserted-by":"publisher","DOI":"10.1111\/clr.14134"},{"key":"e_1_2_10_39_1","doi-asserted-by":"publisher","DOI":"10.1002\/cre2.731"},{"key":"e_1_2_10_40_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1600\u2010051X.2010.01687.x"},{"key":"e_1_2_10_41_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0022\u20103913(07)60015\u20108"},{"key":"e_1_2_10_42_1","doi-asserted-by":"publisher","DOI":"10.1002\/cre2.939"},{"key":"e_1_2_10_43_1","doi-asserted-by":"publisher","DOI":"10.1111\/jcpe.13352"},{"key":"e_1_2_10_44_1","doi-asserted-by":"publisher","DOI":"10.1111\/jcpe.13696"},{"issue":"4","key":"e_1_2_10_45_1","first-page":"527","article-title":"Gingival Recession Around Implants: A 1\u2010Year Longitudinal Prospective Study","volume":"15","author":"Small P. N.","year":"2000","journal-title":"International Journal of Oral & Maxillofacial Implants"},{"key":"e_1_2_10_46_1","doi-asserted-by":"publisher","DOI":"10.1111\/clr.13367"},{"key":"e_1_2_10_47_1","doi-asserted-by":"publisher","DOI":"10.11607\/prd.2016"},{"key":"e_1_2_10_48_1","doi-asserted-by":"publisher","DOI":"10.1111\/cid.13297"},{"key":"e_1_2_10_49_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00784\u2010022\u201004582\u2010y"},{"key":"e_1_2_10_50_1","doi-asserted-by":"publisher","DOI":"10.1111\/jcpe.14070"},{"issue":"4","key":"e_1_2_10_51_1","first-page":"335","article-title":"Considerations of Implant Abutment and Crown Contour: Critical Contour and Subcritical Contour","volume":"30","author":"Su H.","year":"2010","journal-title":"International Journal of Periodontics & Restorative Dentistry"},{"key":"e_1_2_10_52_1","doi-asserted-by":"publisher","DOI":"10.1111\/clr.14325"},{"key":"e_1_2_10_53_1","doi-asserted-by":"publisher","DOI":"10.5051\/jpis.225202edi01"},{"key":"e_1_2_10_54_1","doi-asserted-by":"publisher","DOI":"10.1111\/jcpe.13808"},{"key":"e_1_2_10_55_1","doi-asserted-by":"publisher","DOI":"10.1001\/jama.2022.11238"},{"key":"e_1_2_10_56_1","doi-asserted-by":"publisher","DOI":"10.11607\/prd.1268"}],"container-title":["Journal of Clinical Periodontology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1111\/jcpe.70018","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,17]],"date-time":"2025-10-17T11:28:06Z","timestamp":1760700486000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1111\/jcpe.70018"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2025,8,20]]},"references-count":55,"journal-issue":{"issue":"11","published-print":{"date-parts":[[2025,11]]}},"alternative-id":["10.1111\/jcpe.70018"],"URL":"https:\/\/doi.org\/10.1111\/jcpe.70018","archive":["Portico"],"relation":{},"ISSN":["0303-6979","1600-051X"],"issn-type":[{"value":"0303-6979","type":"print"},{"value":"1600-051X","type":"electronic"}],"subject":[],"published":{"date-parts":[[2025,8,20]]},"assertion":[{"value":"2025-05-09","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2025-08-04","order":2,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2025-08-20","order":3,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}]}}