{"id":4446,"date":"2021-06-29T10:55:41","date_gmt":"2021-06-29T08:55:41","guid":{"rendered":"https:\/\/www.ticareimplants.com\/?post_type=estudios-medicos&p=4446"},"modified":"2021-06-29T10:55:41","modified_gmt":"2021-06-29T08:55:41","slug":"contact-analysis-of-gap-formation-at-dental-implant-abutment-interface-under-oblique-loading-a-numerical-experimental-study","status":"publish","type":"estudios-medicos","link":"https:\/\/www.ticareimplants.com\/en\/medical-publications\/contact-analysis-of-gap-formation-at-dental-implant-abutment-interface-under-oblique-loading-a-numerical-experimental-study\/","title":{"rendered":"Contact analysis of gap formation at dental implant-abutment interface under oblique loading: a numerical-experimental study"},"content":{"rendered":"

OBJECTIVE<\/strong><\/p>\n

To develop numerical and experimental methods for investigating the formation of micro-gaps and the change in contact area at the implant-abutment interface of two different connector designs under oblique cyclic loading.<\/p>\n

MATERIAL AND METHODS<\/strong><\/p>\n

Samples (n = 10 per group) of two-piece implant systems with the conical connection (group A) and the external hexagonal connection (group B) were subjected to cyclic loading with increasing load amplitudes up to 220 N. After loading, the samples were scanned using micro-CT, with silver nitrate as a highcontrast penetrant, and the level of leakage was assessed using a discrete scoring system. Three-dimensional finite element (FE) analyses of the two implant systems were also conducted to reveal the micro-gap formation process, especially bridging of the internal abutment screw space. The experimental and numerical results for the bridging load were then compared.<\/p>\n

RESULTS<\/strong><\/p>\n

90% of the samples in group A showed leakage into the internal implant space at a load of around 100 N; while over 80% of those in group B did so at a load of around 40 N. This agreed with the FE analysis, which showed bridging of the internal implant space at loads similar to those measured for the two implant systems. Residual gaps of less than 1.49 \u03bcm were predicted for group A only after unloading.<\/p>\n

CONCLUSION<\/strong><\/p>\n

The FE-predicted loads for bridging agreed well with those found experimentally for leakage to occur. The conical connection showed more resistance against formation of micro-gaps at the implant-abutment interface than the external hexagonal connection. Although the minimum load required to bridge the internal implant space was within the range of human biting force, the relation between bacterial invasion and micro-gaps needs further research.<\/p>\n","protected":false},"parent":0,"template":"","medio-publicacion":[],"tematica-publicacion":[],"class_list":["post-4446","estudios-medicos","type-estudios-medicos","status-publish","hentry"],"acf":[],"yoast_head":"\nContact analysis of gap formation at dental implant-abutment interface under oblique loading: a numerical-experimental study<\/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\/contact-analysis-of-gap-formation-at-dental-implant-abutment-interface-under-oblique-loading-a-numerical-experimental-study\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Contact analysis of gap formation at dental implant-abutment interface under oblique loading: a numerical-experimental study\" \/>\n<meta property=\"og:description\" content=\"OBJECTIVE To develop numerical and experimental methods for investigating the formation of micro-gaps and the change in contact area at the implant-abutment interface of two different connector designs under oblique cyclic loading. MATERIAL AND METHODS Samples (n = 10 per group) of two-piece implant systems with the conical connection (group A) and the external hexagonal connection (group B) were subjected to cyclic loading with increasing load amplitudes up to 220 N. After loading, the samples were scanned using micro-CT, with silver nitrate as a highcontrast penetrant, and the level of leakage was assessed using a discrete scoring system. Three-dimensional finite element (FE) analyses of the two implant systems were also conducted to reveal the micro-gap formation process, especially bridging of the internal abutment screw space. The experimental and numerical results for the bridging load were then compared. RESULTS 90% of the samples in group A showed leakage into the internal implant space at a load of around 100 N; Read the whole content\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.ticareimplants.com\/en\/medical-publications\/contact-analysis-of-gap-formation-at-dental-implant-abutment-interface-under-oblique-loading-a-numerical-experimental-study\/\" \/>\n<meta property=\"og:site_name\" content=\"Ticare\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/ticareimplants\/\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:site\" content=\"@ticareimplants\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.ticareimplants.com\/en\/medical-publications\/contact-analysis-of-gap-formation-at-dental-implant-abutment-interface-under-oblique-loading-a-numerical-experimental-study\/\",\"url\":\"https:\/\/www.ticareimplants.com\/en\/medical-publications\/contact-analysis-of-gap-formation-at-dental-implant-abutment-interface-under-oblique-loading-a-numerical-experimental-study\/\",\"name\":\"Contact analysis of gap formation at dental implant-abutment interface under oblique loading: a numerical-experimental study\",\"isPartOf\":{\"@id\":\"https:\/\/www.ticareimplants.com\/#website\"},\"datePublished\":\"2021-06-29T08:55:41+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/www.ticareimplants.com\/en\/medical-publications\/contact-analysis-of-gap-formation-at-dental-implant-abutment-interface-under-oblique-loading-a-numerical-experimental-study\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.ticareimplants.com\/en\/medical-publications\/contact-analysis-of-gap-formation-at-dental-implant-abutment-interface-under-oblique-loading-a-numerical-experimental-study\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.ticareimplants.com\/en\/medical-publications\/contact-analysis-of-gap-formation-at-dental-implant-abutment-interface-under-oblique-loading-a-numerical-experimental-study\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/www.ticareimplants.com\/en\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Estudios m\u00e9dicos\",\"item\":\"https:\/\/www.ticareimplants.com\/estudios-medicos\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Contact analysis of gap formation at dental implant-abutment interface under oblique loading: a numerical-experimental study\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.ticareimplants.com\/#website\",\"url\":\"https:\/\/www.ticareimplants.com\/\",\"name\":\"Ticare\",\"description\":\"Tissue Care Philosophy\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.ticareimplants.com\/search\/{search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Contact analysis of gap formation at dental implant-abutment interface under oblique loading: a numerical-experimental study","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\/contact-analysis-of-gap-formation-at-dental-implant-abutment-interface-under-oblique-loading-a-numerical-experimental-study\/","og_locale":"en_US","og_type":"article","og_title":"Contact analysis of gap formation at dental implant-abutment interface under oblique loading: a numerical-experimental study","og_description":"OBJECTIVE To develop numerical and experimental methods for investigating the formation of micro-gaps and the change in contact area at the implant-abutment interface of two different connector designs under oblique cyclic loading. 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