Soft Tissue and Bone Healing at Platform Shift Abutment in One-Stage Implants: A Radiographic, Histologic, and Histometric Study in Dogs

Hdl Handle:
http://hdl.handle.net/10675.2/318799
Title:
Soft Tissue and Bone Healing at Platform Shift Abutment in One-Stage Implants: A Radiographic, Histologic, and Histometric Study in Dogs
Authors:
Wenzel, Brent A.
Abstract:
Matching-diameter and platform shift abutments were randomized to 40 dental implants placed into 5 dogs following mucoperiosteal flap elevation. 1x5 (width x height) mm peri-implant gap defects were surgically created in randomly assigned jaw quadrants. All implants were placed 2 mm subcrestally. Mucoperiosteal flaps were sutured around the abutments for primary intention healing. Radiographs were recorded immediately, 4-, and 8 weeks postsurgery when block biopsies were removed for histometric analysis. The histological examination showed the junctional epithelium was arrested coronal to the implant platform without significant differences among experimental conditions. Crestal bone height demonstrated no significant differences among groups at buccal or lingual sites. Bone-implant contact reached 0.4 mm below the platform at buccal sites. Higher variability was observed at lingual sites without differences among groups. Platform shift abutments offer negligible benefit compared to conventional abutments to maintain peri-implant crestal bone and soft tissue contours.
Affiliation:
Department of Oral Biology
Issue Date:
Apr-2011
URI:
http://hdl.handle.net/10675.2/318799
Type:
Thesis
Language:
en_US
Appears in Collections:
Theses and Dissertations; Department of Oral Biology Theses and Dissertations

Full metadata record

DC FieldValue Language
dc.contributor.authorWenzel, Brent A.en
dc.date.accessioned2014-06-03T18:21:15Z-
dc.date.available2014-06-03T18:21:15Z-
dc.date.issued2011-04-
dc.identifier.urihttp://hdl.handle.net/10675.2/318799-
dc.description.abstractMatching-diameter and platform shift abutments were randomized to 40 dental implants placed into 5 dogs following mucoperiosteal flap elevation. 1x5 (width x height) mm peri-implant gap defects were surgically created in randomly assigned jaw quadrants. All implants were placed 2 mm subcrestally. Mucoperiosteal flaps were sutured around the abutments for primary intention healing. Radiographs were recorded immediately, 4-, and 8 weeks postsurgery when block biopsies were removed for histometric analysis. The histological examination showed the junctional epithelium was arrested coronal to the implant platform without significant differences among experimental conditions. Crestal bone height demonstrated no significant differences among groups at buccal or lingual sites. Bone-implant contact reached 0.4 mm below the platform at buccal sites. Higher variability was observed at lingual sites without differences among groups. Platform shift abutments offer negligible benefit compared to conventional abutments to maintain peri-implant crestal bone and soft tissue contours.en
dc.language.isoen_USen
dc.rightsCopyright protected. Unauthorized reproduction or use beyond the exceptions granted by the Fair Use clause of U.S. Copyright law may violate federal law.-
dc.subjectPlatform Shift/Switchen
dc.subjectNon-Submergeden
dc.subjectSingle-Stage Implanten
dc.subjectGap Defectsen
dc.subjectSubcrestal Implant Placementen
dc.titleSoft Tissue and Bone Healing at Platform Shift Abutment in One-Stage Implants: A Radiographic, Histologic, and Histometric Study in Dogsen_US
dc.typeThesisen
dc.contributor.departmentDepartment of Oral Biologyen
dc.description.advisorWikesjÓ§, Ulf-
dc.description.committeeRueggeberg, Frederick; Hanes, Philip; Rodriguez, Nancy.-
dc.description.degreeMaster of Science (M.S.)-
All Items in Scholarly Commons are protected by copyright, with all rights reserved, unless otherwise indicated.