{"id":4451,"date":"2021-06-29T11:36:25","date_gmt":"2021-06-29T09:36:25","guid":{"rendered":"https:\/\/www.ticareimplants.com\/?post_type=estudios-medicos&#038;p=4451"},"modified":"2021-06-29T11:36:25","modified_gmt":"2021-06-29T09:36:25","slug":"natural-or-palatal-positioning-of-immediate-postextraction-implants-in-the-aesthetic-zone-five-year-outcomes-of-a-multicentre-randomised-controlled-trial","status":"publish","type":"estudios-medicos","link":"https:\/\/www.ticareimplants.com\/en\/medical-publications\/natural-or-palatal-positioning-of-immediate-postextraction-implants-in-the-aesthetic-zone-five-year-outcomes-of-a-multicentre-randomised-controlled-trial\/","title":{"rendered":"Natural or palatal positioning of immediate postextraction implants in the aesthetic zone? Five-year outcomes of a multicentre randomised controlled trial"},"content":{"rendered":"<p><strong>OBJECTIVE<\/strong><\/p>\n<p>To evaluate whether there is a difference in aesthetic outcomes when positioning immediate post-extractive implants in the \u201ccentral\u201d position (where the natural tooth would be in relation to adjacent teeth\/implants) as opposed to roughly 3 mm more palatally.<\/p>\n<p><strong>MATERIAL AND METHODS<\/strong><\/p>\n<p>Just after tooth extraction, 20 patients requiring one single immediate maxillary post-extraction implant, from second premolar to second premolar, were randomly allocated to receive one implant positioned in either the natural \u201ccentral\u201d position (central group; 10 patients), or about 3 mm more palatally (palatal group; 10 patients) according to a parallel-group design at two different centers. When needed, sites were reconstructed, and bone-to-implant gaps were filled with granules of anorganic bovine bone and covered by resorbable collagen barriers. Implants were left submerged for 4 months and rehabilitated with provisional crowns, replaced after 4 months by definitive metal-ceramic crowns. Patients were followed up to 5 years after loading. Outcome measures were: crown and implant failures; complications; aesthetics, assessed using the pink aesthetic score (PES); peri-implant marginal bone level changes; and patient satisfaction, recorded by blinded assessors.<\/p>\n<p><strong>RESULTS<\/strong><\/p>\n<p>Three patients from each group dropped out within 3 years after loading. Five years after loading, there were no significant differences between the two groups in median PES score, assessed by a blind assessor, (central: 10 [IQR: 5.5], palatal: 8.5 [IQR: 6.75], median difference = -1.0; 95% CI: -7.0 to 4.0; P = 0.571); median bone level (central: 0.45 mm [IQR: 1.76], palatal: 0.45 mm [IQR: 1.93], median difference = 0 mm; 95% CI: -1.7 to 3.0; P = 1.000); bone level changes (central: 0.15 mm [IQR: 0.70], palatal: -0.05 mm [IQR: 1.23], median difference = -0.20 mm; P = 0.471); implant failures (one in each group, 14%, difference in proportion = 0.00; 95% CI: -0.39 to 0.39; P = 1.000); or complications (two palatal group patients and one central group patient, difference in proportion = 0.14; 95% CI: -0.28 to 0.52; P = 1.000). Furthermore, patients from both groups were equally satisfied with both function and aesthetics (both P = 0.699).<\/p>\n<p><strong>CONCLUSION<\/strong><\/p>\n<p>These preliminary results suggest that positioning of immediate post-extraction implants 3 mm more palatally may not, in fact, improve aesthetics; however, the sample size of the present study was very limited, and larger trials are therefore required to confirm or refute these findings.<\/p>\n","protected":false},"parent":0,"template":"","medio-publicacion":[],"tematica-publicacion":[],"class_list":["post-4451","estudios-medicos","type-estudios-medicos","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Natural or palatal positioning of immediate postextraction implants in the aesthetic zone? Five-year outcomes of a multicentre randomised controlled trial<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.ticareimplants.com\/en\/medical-publications\/natural-or-palatal-positioning-of-immediate-postextraction-implants-in-the-aesthetic-zone-five-year-outcomes-of-a-multicentre-randomised-controlled-trial\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Natural or palatal positioning of immediate postextraction implants in the aesthetic zone? Five-year outcomes of a multicentre randomised controlled trial\" \/>\n<meta property=\"og:description\" content=\"OBJECTIVE To evaluate whether there is a difference in aesthetic outcomes when positioning immediate post-extractive implants in the \u201ccentral\u201d position (where the natural tooth would be in relation to adjacent teeth\/implants) as opposed to roughly 3 mm more palatally. MATERIAL AND METHODS Just after tooth extraction, 20 patients requiring one single immediate maxillary post-extraction implant, from second premolar to second premolar, were randomly allocated to receive one implant positioned in either the natural \u201ccentral\u201d position (central group; 10 patients), or about 3 mm more palatally (palatal group; 10 patients) according to a parallel-group design at two different centers. When needed, sites were reconstructed, and bone-to-implant gaps were filled with granules of anorganic bovine bone and covered by resorbable collagen barriers. Implants were left submerged for 4 months and rehabilitated with provisional crowns, replaced after 4 months by definitive metal-ceramic crowns. 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Five-year outcomes of a multicentre randomised controlled trial","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.ticareimplants.com\/en\/medical-publications\/natural-or-palatal-positioning-of-immediate-postextraction-implants-in-the-aesthetic-zone-five-year-outcomes-of-a-multicentre-randomised-controlled-trial\/","og_locale":"en_US","og_type":"article","og_title":"Natural or palatal positioning of immediate postextraction implants in the aesthetic zone? Five-year outcomes of a multicentre randomised controlled trial","og_description":"OBJECTIVE To evaluate whether there is a difference in aesthetic outcomes when positioning immediate post-extractive implants in the \u201ccentral\u201d position (where the natural tooth would be in relation to adjacent teeth\/implants) as opposed to roughly 3 mm more palatally. 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