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In both cases, the biologically oriented preparation technique was used to recreate ideal proportions between the teeth and gingivae. Since patients with human immunodeficiency virus experience a progressive deterioration of their immune systems and other significant comorbidities, a reduction in the number of traumatic clinical procedures is recommended. The use of this minimally invasive prosthetic protocol has not been previously reported in patients with human immunodeficiency virus. These cases demonstrate how short clinical crowns and gingival recession in the esthetic zone can be successfully treated with the biologically oriented preparation technique to avoid surgical procedures in patients with human immunodeficiency virus.<\/jats:p>","DOI":"10.1155\/2020\/8830949","type":"journal-article","created":{"date-parts":[[2020,12,15]],"date-time":"2020-12-15T00:05:06Z","timestamp":1607990706000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Correction of Gingival Architecture Using the Biologically Oriented Preparation Technique in Two Patients with Human Immunodeficiency Virus"],"prefix":"10.1155","volume":"2020","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-5059-4589","authenticated-orcid":false,"given":"Luca","family":"Casula","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1986-2925","authenticated-orcid":false,"given":"Alex","family":"Gillone","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5599-6509","authenticated-orcid":false,"given":"Davide","family":"Musu","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2020,12,14]]},"reference":[{"key":"e_1_2_8_1_2","doi-asserted-by":"publisher","DOI":"10.14219\/jada.archive.2002.0144"},{"key":"e_1_2_8_2_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1601-0825.2006.01262.x"},{"key":"e_1_2_8_3_2","doi-asserted-by":"publisher","DOI":"10.1016\/s1079-2104(97)90260-2"},{"key":"e_1_2_8_4_2","doi-asserted-by":"publisher","DOI":"10.1902\/jop.2009.090616"},{"key":"e_1_2_8_5_2","doi-asserted-by":"publisher","DOI":"10.3290\/j.qi.a39031"},{"key":"e_1_2_8_6_2","doi-asserted-by":"publisher","DOI":"10.1002\/JPER.16-0569"},{"key":"e_1_2_8_7_2","doi-asserted-by":"publisher","DOI":"10.1038\/sj.bdj.2018.121"},{"key":"e_1_2_8_8_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.prosdent.2017.04.018"},{"key":"e_1_2_8_9_2","doi-asserted-by":"publisher","DOI":"10.1111\/jcpe.13106"},{"key":"e_1_2_8_10_2","first-page":"10","article-title":"Biologically oriented preparation technique (BOPT): a new approach for prosthetic restoration of periodontically healthy teeth","volume":"8","author":"Loi I.","year":"2013","journal-title":"European Journal of Esthetic Dentistry"},{"key":"e_1_2_8_11_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.jpor.2019.03.006"},{"key":"e_1_2_8_12_2","doi-asserted-by":"publisher","DOI":"10.2341\/17-124-C"},{"key":"e_1_2_8_13_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.prosdent.2015.11.011"},{"key":"e_1_2_8_14_2","article-title":"Influence of biologically oriented preparation technique on peri-implant tissues; prospective randomized clinical trial with three-year follow-up. 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