{"id":7347,"date":"2021-06-09T15:39:38","date_gmt":"2021-06-09T13:39:38","guid":{"rendered":"https:\/\/eacim-ceramic-implantology.com\/nouvelle-etude-influence-of-zirconia-implant-surface-topography-on-first-bone-implant-contact-within-a-prospective-cohort-study\/"},"modified":"2021-06-09T15:39:40","modified_gmt":"2021-06-09T13:39:40","slug":"nouvelle-etude-influence-of-zirconia-implant-surface-topography-on-first-bone-implant-contact-within-a-prospective-cohort-study","status":"publish","type":"post","link":"https:\/\/eacim-ceramic-implantology.com\/fr\/nouvelle-etude-influence-of-zirconia-implant-surface-topography-on-first-bone-implant-contact-within-a-prospective-cohort-study\/","title":{"rendered":"Nouvelle \u00e9tude\u00a0\u00ab\u00a0Influence of zirconia implant surface topography on first bone implant contact within a prospective cohort study\u00a0\u00bb"},"content":{"rendered":"

R\u00e9sum\u00e9 de l’\u00e9tude :<\/h1>\n

Background:\u00a0<\/strong><\/h3>\n

Although 5-year clinical data exist for different zirconia implants, no analysis has yet been performed focusing on how the surface topography of the implant affects clinical parameters.<\/p>\n

Purpose:\u00a0<\/strong><\/h3>\n

To analyze the influence of zirconia implant topography on first bone implant contact (fBIC).<\/p>\n

Materials and methods:<\/strong><\/h3>\n

\u00a0<\/strong>In a prospective two-center cohort investigation 63 zirconia implants were evaluated at implant placement, prosthetic delivery, 1, 3, and 5 years. The distance (DIB) between implant shoulder and fBIC was measured at each time point in periapical radiographs at mesial and distal sites. Two-way ANOVA\/Bonferroni was used to analyze the effects of time and center (\u03b1 < 0.05).<\/p>\n

Results:\u00a0<\/strong><\/h3>\n

Between the centers, the mean DIB varied significantly at implant placement (Freiburg [FR]: 1.4 \u00b1 0.6 mm; Zurich [ZH]: 0.8 \u00b1 0.5 mm). Thereafter, no statistically significant difference in DIB was observed, neither between centers nor between time points (prosthetic delivery: FR: 1.9 \u00b1 0.6 mm, ZH: 1.7 \u00b1 0.8 mm; 1 year: FR: 1.8 \u00b1 0.6 mm, ZH: 1.6 \u00b1 0.8 mm; 3 years: FR: 1.9 \u00b1 0.8 mm, ZH: 1.7 \u00b1 0.8 mm; 5 years: FR: 1.9 \u00b1 0.8 mm, ZH 1.8 \u00b1 0.6 mm). The overall mean DIB at prosthetic delivery to 5 years of both centers (1.8 \u00b1 0.7 mm) is located within the transition zone between the smooth neck and the moderately rough intraosseous part (1.6-2.0 mm from the implant shoulder). However, individual DIB values are ranging from 0.1 to 4.2 mm overlapping the transition zone.<\/p>\n

Conclusions:\u00a0<\/strong><\/h3>\n

The standard deviation of the DIB indicates that the fBIC establishes on moderately rough and smooth surfaces. Consequently, soft tissue adapts to both topographies as well.<\/p>\n

Keywords:\u00a0<\/strong><\/h3>\n

bone-implant interface; clinical study; implant design; implant surface; surface topography; zirconia.<\/p>\n

\n

Commentaire de l\u2019EACim sur cet article :<\/strong><\/h1>\n

Plus d\u2019un demi-si\u00e8cle apr\u00e8s que l\u2019implantologie dentaire fait partie int\u00e9grante de notre pratique quotidienne, les apports technologiques font l\u00e9gion.<\/p>\n

Deux concepts se sont av\u00e9r\u00e9s determinants : l\u2019implantologie c\u00e9ramique avec l\u2019apport fantastique de la zircone et les modifications des \u00e9tats de surface \u00e9voluant d\u2019une surface macroscopiquement lisse (implant machin\u00e9) vers des surfaces dites rugueuses. La plupart des implants actuels \u00e9tant \u00e0 surface mod\u00e9r\u00e9ment rugueuse.<\/p>\n

Un inconv\u00e9nient majeur de ces surfaces rugueux est la r\u00e9action qu\u2019elles peuvent engendrer vis-\u00e0-vis des tissus environnants. L\u2019accumulation accrue de plaque dentaire avec une stimulation pro-inflammatoire p\u00e9ri-implantaire, peuvent se traduire par une ost\u00e9olyse p\u00e9riph\u00e9rique et un \u00e9tat inflammatoire muqueux \u00e9voluant assez fr\u00e9quemment vert la p\u00e9ri-implantite<\/p>\n

Il \u00e9tait ainsi int\u00e9ressant d\u2019\u00e9lucider, dans une \u00e9tude multicentrique, le comportement des tissus p\u00e9riph\u00e9riques vis-\u00e0-vis des diff\u00e9rentes surfaces zircone \u00ab lisse \u00bb ou \u00ab rugueuse \u00bb<\/p>\n

On conna\u00eet l\u2019excellente r\u00e9action autour des implants zircone, tant sur le plan osseux que sur le plan muqueux. La belle surprise est que les tissus p\u00e9ri-implantaires semblent se comporter de la m\u00eame fa\u00e7on au contact des diff\u00e9rents \u00e9tats de surface implantaires c\u00e9ramiques. On aurait certes bien appr\u00e9ci\u00e9 des donn\u00e9s histologiques issues d\u2019\u00e9tudes animales.<\/p>\n<\/div>

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