Author/Editor		Gašperšič, R; Skalerič, U
Title		Biološka širina sluznice ob zobnem vsadku
Translated title		Biological width of peri-implant mucosa
Type		članek
Source		Zobozdrav Vestn
Vol. and No.		Letnik 63, št. 2-3
Publication year		2008
Volume		str. 122-6
Language		slo
Abstract		Gingival biological width is an anatomical expression describing the distance between the margins of free gingiva and alveolar bone. This distance is genetically determined and measures approximately 3 mm. Gingival biological zone is a clinical expression relating to the shortest distance of bacterial plaque from the margin of alveolar bone which does not lead to bone resorption. The biological zone extends about 2.5 mm above the bone margin. It should be respected when preparing the gingival margin for a prosthetic crown in order to achieve a stable relationship between the prosthetic crown and periodontal tissues. The biological width of periimplant mucosa is determined by the position of the gap between different components of the implant system. In a one-piece implant, the top of the implant is positioned at the level of the mucosa, and the biological width of peri-implant mucosa is similar to the biological width of the gingiva. In a two-piece system, the gap formed between the implant body and the abutment is located at the level of alveolar bone. The gap may become colonized by oral bacteria, and infection within the gap leads to resorption of alveolar bone. The resulting space is filled by connective tissue, whereby the biological width of the mucosa is increased. Modern two-piece implants have the outer edge of the body-abutment interface positioned inwardly and away from the outer edge of the implant platform. The two parts are tightly joined by conical retention. In this way bacterial infection of the gap is prevented and resorption of alveolar bone is minimized..
Descriptors		DENTAL IMPLANTATION, ENDOSSEOUS GINGIVA GINGIVAL POCKET