{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,17]],"date-time":"2026-07-17T00:15:43Z","timestamp":1784247343545,"version":"3.55.0"},"reference-count":26,"publisher":"American Academy of Implant Dentistry","issue":"6","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2017,12]]},"abstract":"<jats:p>The aim of this qualitative study was to gain a deeper understanding of patient perceptions of wearing implant-retained overdentures with ball-shaped or cylindrical attachment systems. Twenty-two wearers of implant-supported overdentures participated in this qualitative study based on a randomized crossover clinical trial that aimed to compare a cylindrical attachment and a ball attachment. In phase I of the study, group A experienced ball attachments (n = 11) and group B Locator attachments (n = 11) for 1 year. Afterward, in phase II, the attachments were changed; group A received Locator attachments and group B received ball attachments. One week after the attachment's replacement, semistructured individual interviews were conducted. All interviews were audiotaped and transcribed. The analysis was guided by thematic content analysis. Most of the patients from both groups preferred the attachment they received in phase II, regardless the type. A major theme raised by the participants to justify their preference between the attachment types was prosthesis retention\/stability, sometimes considered as a positive and other times as a negative factor. Other themes were also explored: oral function, pain, hygiene, previous experiences, confidence on the dentist's work, and esthetic. Aspects related to the retention\/stability of the overdentures are the main concerns associated with the perceptions of most patients treated with implant overdentures regardless of the type of attachment. Adequate retention level should be identified and adjusted on an individual basis and maintained overtime as possible. Therefore, follow-up appointments should be planned for readjustment of the attachment's retention. Overretention should be avoided.<\/jats:p>","DOI":"10.1563\/aaid-joi-d-17-00166","type":"journal-article","created":{"date-parts":[[2017,11,1]],"date-time":"2017-11-01T10:50:08Z","timestamp":1509533408000},"page":"476-481","source":"Crossref","is-referenced-by-count":19,"title":["A Qualitative Study on Patients' Perceptions of Two Types of Attachments for Implant Overdentures"],"prefix":"10.1563","volume":"43","author":[{"given":"Marina","family":"Pisani","sequence":"first","affiliation":[{"name":"Department of Dental Materials and Prosthodontics, Faculty of Dentistry of Ribeir\u00e3o Preto, University of S\u00e3o Paulo, S\u00e3o Paulo, Brazil."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Christophe","family":"Bedos","sequence":"additional","affiliation":[{"name":"Oral Health and Society Research Unit, Faculty of Dentistry, McGill University, Montreal, QC, Canada."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Cl\u00e1udia Helena Lovato","family":"da Silva","sequence":"additional","affiliation":[{"name":"Department of Dental Materials and Prosthodontics, Faculty of Dentistry of Ribeir\u00e3o Preto, University of S\u00e3o Paulo, S\u00e3o Paulo, Brazil."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Olivier","family":"Fromentin","sequence":"additional","affiliation":[{"name":"UFR of Odontology, Rothschild Hospital (AP-HP), Sorbonne Paris Cit\u00e9 University, Paris, France."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Rubens F.","family":"de Albuquerque","sequence":"additional","affiliation":[{"name":"Department of Dental Materials and Prosthodontics, Faculty of Dentistry of Ribeir\u00e3o Preto, University of S\u00e3o Paulo, S\u00e3o Paulo, Brazil."}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"434","reference":[{"key":"i1548-1336-43-6-476-b01","series-title":"Gerodontology","first-page":"62","article-title":"Refusal of implant supported mandibular overdentures by elderly patients","volume":"28","author":"Ellis \n              JS.","year":"2011","unstructured":"Ellis \n              JS.\n            \n            \n              Levine \n              A.\n            \n            \n              Bedos \n              C.\n            \n            et al. \n          Refusal of implant supported mandibular overdentures by elderly patients. 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J Dent. 2009;37:718\u2013723."},{"key":"i1548-1336-43-6-476-b17","series-title":"Gerodontology","first-page":"187","article-title":"Patients' experiences with partial dentures: a qualitative study","volume":"22","author":"Smith \n              PA.","year":"2005","unstructured":"Smith \n              PA.\n            \n            \n              Entwistle \n              VA.\n            \n            \n              Nuttall \n              N.\n            \n          \n          Patients' experiences with partial dentures: a qualitative study. 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London: Routledge;1994:173\u2013194."},{"key":"i1548-1336-43-6-476-b19","series-title":"Studying the Organization and Delivery of Health Services","first-page":"1","article-title":"Issues in studying the organization and delivery of health services","author":"Fulop \n              N.","year":"2001","unstructured":"Fulop \n              N.\n            \n            \n              Allen \n              P.\n            \n            \n              Clarke \n              A.\n            \n            \n              Black \n              N.\n            \n          \n          Issues in studying the organization and delivery of health services. In: Fulop N.Allen P.Clarke A.Black N.eds. Studying the Organization and Delivery of Health Services. London: Sage;2001:1\u201323."},{"key":"i1548-1336-43-6-476-b20","series-title":"Quintessence Int","first-page":"313","article-title":"A comparative in vitro study on the retention and stability of implant-supported overdentures","volume":"40","author":"Sadig \n              W.","year":"2009","unstructured":"Sadig \n              W.\n            \n          \n          A comparative in vitro study on the retention and stability of implant-supported overdentures. Quintessence Int. 2009;40:313\u2013319."},{"key":"i1548-1336-43-6-476-b21","series-title":"Clin Oral Implants Res","first-page":"722","article-title":"Mandibular overdentures supported by two or four endosseous implants: a 10-year clinical trial","volume":"20","author":"Meijer \n              HJ.","year":"2009","unstructured":"Meijer \n              HJ.\n            \n            \n              Raghoebar \n              GM.\n            \n            \n              Batenburg \n              RH.\n            \n            \n              Visser \n              A.\n            \n            \n              Vissink \n              A.\n            \n          \n          Mandibular overdentures supported by two or four endosseous implants: a 10-year clinical trial. 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An in vitro study of non-axial forces upon the retention of an O-ring attachment","volume":"20","author":"Rodrigues \n              RC.","year":"2009","unstructured":"Rodrigues \n              RC.\n            \n            \n              Faria \n              AC.\n            \n            \n              Macedo \n              AP.\n            \n            \n              Sartori \n              IA.\n            \n          \n          de Mattos Mda G, Ribeiro RF. An in vitro study of non-axial forces upon the retention of an O-ring attachment. Clin Oral Implants Res. 2009;20:1314\u20131319."},{"key":"i1548-1336-43-6-476-b24","series-title":"Dent Mater","first-page":"77","article-title":"Analysis of potential lubricants for in vitro wear testing","volume":"22","author":"Turssi \n              CP.","year":"2006","unstructured":"Turssi \n              CP.\n            \n            \n              Faraoni \n              JJ.\n            \n            \n              de Menezes \n              M.\n            \n            \n              Serra \n              MC.\n            \n          \n          Analysis of potential lubricants for in vitro wear testing. Dent Mater. 2006;22:77\u201383."},{"key":"i1548-1336-43-6-476-b25","series-title":"J Prosthet Dent","first-page":"40","article-title":"Prosthetic complications in an implant-retained mandibular overdenture population: initial analysis of a prospective study","volume":"87","author":"Chaffee \n              NR.","year":"2002","unstructured":"Chaffee \n              NR.\n            \n            \n              Felton \n              DA.\n            \n            \n              Cooper \n              LF.\n            \n            \n              Palmqvist \n              U.\n            \n            \n              Smith \n              R.\n            \n          \n          Prosthetic complications in an implant-retained mandibular overdenture population: initial analysis of a prospective study. J Prosthet Dent. 2002;87:40\u201344."},{"key":"i1548-1336-43-6-476-b26","series-title":"Int J Prosthodont","first-page":"238","article-title":"The prosthodontic maintenance requirements of mandibular mucosa- and implant-supported overdentures: a review of the literature","volume":"13","author":"Payne \n              AG.","year":"2000","unstructured":"Payne \n              AG.\n            \n            \n              Solomons \n              YF.\n            \n          \n          The prosthodontic maintenance requirements of mandibular mucosa- and implant-supported overdentures: a review of the literature. Int J Prosthodont. 2000;13:238\u2013243."}],"container-title":["Journal of Oral Implantology"],"original-title":[],"link":[{"URL":"https:\/\/joi.kglmeridian.com\/view\/journals\/orim\/43\/6\/article-p476.xml","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/meridian.allenpress.com\/joi\/article-pdf\/43\/6\/476\/2038209\/aaid-joi-d-17-00166.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"syndication"},{"URL":"https:\/\/joi.kglmeridian.com\/downloadpdf\/journals\/orim\/43\/6\/article-p476.xml","content-type":"text\/html","content-version":"vor","intended-application":"syndication"},{"URL":"https:\/\/joi.kglmeridian.com\/downloadpdf\/journals\/orim\/43\/6\/article-p476.xml","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,7,11]],"date-time":"2025-07-11T00:14:36Z","timestamp":1752192876000},"score":1,"resource":{"primary":{"URL":"https:\/\/joi.kglmeridian.com\/view\/journals\/orim\/43\/6\/article-p476.xml"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2017,12]]},"references-count":26,"journal-issue":{"issue":"6"},"URL":"https:\/\/doi.org\/10.1563\/aaid-joi-d-17-00166","relation":{},"ISSN":["0160-6972","1548-1336"],"issn-type":[{"value":"0160-6972","type":"print"},{"value":"1548-1336","type":"electronic"}],"subject":[],"published":{"date-parts":[[2017,12]]}}}