{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,18]],"date-time":"2026-09-18T09:34:05Z","timestamp":1789724045131,"version":"4.0.1"},"reference-count":36,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2012,11,4]],"date-time":"2012-11-04T00:00:00Z","timestamp":1351987200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J of Oral Rehabilitation"],"published-print":{"date-parts":[[2013,1]]},"abstract":"<jats:title>Summary<\/jats:title><jats:p>This investigation examined the cumu\u2010lative survival rate of the implant\u2010supported overdenture using two types of attachments in patients treated at <jats:styled-content style=\"fixed-case\">S<\/jats:styled-content>how <jats:styled-content style=\"fixed-case\">C<\/jats:styled-content>hwan <jats:styled-content style=\"fixed-case\">M<\/jats:styled-content>emorial <jats:styled-content style=\"fixed-case\">H<\/jats:styled-content>ospital <jats:styled-content style=\"fixed-case\">I<\/jats:styled-content>mplant <jats:styled-content style=\"fixed-case\">C<\/jats:styled-content>enter from 1992 to 2006. Fifty\u2010one patients (30 men and 21 women) were treated with mandibular implant\u2010supported overdentures. Attachment systems used were the <jats:styled-content style=\"fixed-case\">H<\/jats:styled-content>ader bar with bilateral, cast <jats:styled-content style=\"fixed-case\">ERA<\/jats:styled-content> attachments (<jats:styled-content style=\"fixed-case\">G<\/jats:styled-content>roup <jats:styled-content style=\"fixed-case\">A<\/jats:styled-content>, 31 patients with 15 men and 16 women, 134 implants) and the <jats:styled-content style=\"fixed-case\">H<\/jats:styled-content>ader bar with bilateral, distal extension cantilevers (<jats:styled-content style=\"fixed-case\">G<\/jats:styled-content>roup <jats:styled-content style=\"fixed-case\">B<\/jats:styled-content>, 20 patients with 15 men and 5 women, 85 implants). Two hundred and four implants remained at the end of the follow\u2010up period. Among failed implants, 10 implants were in <jats:styled-content style=\"fixed-case\">G<\/jats:styled-content>roup <jats:styled-content style=\"fixed-case\">A<\/jats:styled-content> (failure rate: 10\/134\u00a0=\u00a07\u00b75%), whereas five implants were in <jats:styled-content style=\"fixed-case\">G<\/jats:styled-content>roup <jats:styled-content style=\"fixed-case\">B<\/jats:styled-content> (failure rate: 5\/85\u00a0=\u00a05\u00b79%). Sixty\u2010six point seven per cent (10\/15) of failed implants were placed in the distal anterior mandible, and 33\u00b73% (5\/15) were placed in the middle anterior mandible. Survival was also examined with respect to condition of the opposing arch. Patients wearing a maxillary removable partial denture had the highest implant failure rate (5\/51\u00a0=\u00a09\u00b78%), whereas the failure rate of the maxillary complete denture group was only 5\u00b77%. The most frequent need for maintenance was wear over patrix component of <jats:styled-content style=\"fixed-case\">ERA<\/jats:styled-content> or <jats:styled-content style=\"fixed-case\">H<\/jats:styled-content>ader clip (<jats:italic>n<\/jats:italic>\u00a0=\u00a056). Eight patients experienced connector fracture between <jats:styled-content style=\"fixed-case\">ERA<\/jats:styled-content> and <jats:styled-content style=\"fixed-case\">H<\/jats:styled-content>ader bar, and one experienced distal extension cantilever fracture. The implant\u2010supported overdenture can be an effective and reliable alternative to the conventional complete mandibular denture. Fewer prosthetic complications were seen in overdentures retained with distal extension cantilever attachments.<\/jats:p>","DOI":"10.1111\/joor.12010","type":"journal-article","created":{"date-parts":[[2012,11,5]],"date-time":"2012-11-05T04:26:50Z","timestamp":1352089610000},"page":"43-50","source":"Crossref","is-referenced-by-count":23,"title":["An analysis of the implant\u2010supported overdenture in the edentulous mandible"],"prefix":"10.1111","volume":"40","author":[{"given":"K.\u2010W.","family":"Chen","sequence":"first","affiliation":[{"name":"Dental Department Show Chwan Memorial Hospital Changhua Taiwan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"T.\u2010M.","family":"Lin","sequence":"additional","affiliation":[{"name":"Department of General Dentistry Chang Gung Memorial Hospital Taipei Taiwan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"P.\u2010R.","family":"Liu","sequence":"additional","affiliation":[{"name":"Department of Prosthodontics School of Dentistry University of Alabama at Birmingham Birmingham AL USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"L. C.","family":"Ramp","sequence":"additional","affiliation":[{"name":"Department of General Dental Sciences School of Dentistry University of Alabama at Birmingham Birmingham AL USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"H.\u2010J.","family":"Lin","sequence":"additional","affiliation":[{"name":"Dental Department Show Chwan Memorial Hospital Changhua Taiwan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"C.\u2010T.","family":"Wu","sequence":"additional","affiliation":[{"name":"Dental Department Show Chwan Memorial Hospital Changhua Taiwan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Y.\u2010H.","family":"Pan","sequence":"additional","affiliation":[{"name":"Department of General Dentistry Chang Gung Memorial Hospital Chang Gung University Taipei Taiwan"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2012,11,4]]},"reference":[{"key":"e_1_2_7_2_1","first-page":"390","article-title":"Oral health status and treatment satisfaction with mandibular implant overdentures and conventional dentures: a randomized clinical trial in a senior population","volume":"16","author":"Awad MA","year":"2003","journal-title":"Int J Prosthodont"},{"key":"e_1_2_7_3_1","first-page":"467","article-title":"Patient satisfaction with mandibular implant overdentures and conventional dentures 6\u00a0months after delivery","volume":"16","author":"Thomason JM","year":"2003","journal-title":"Int J Prosthodont"},{"key":"e_1_2_7_4_1","first-page":"498","article-title":"A randomized prospective clinical trial on the effectiveness of three treatment modalities for patients with lower denture problems. 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