Accuracy of impression techniques for implants. Part 1 - Influence of transfer copings surface abrasion

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorAssunção, Wirley Goncalves
dc.creatorCardoso, Alessandra
dc.creatorGomes, Erica Alves
dc.creatorTabata, Lucas Fernando
dc.creatorSantos, Paulo Henrique dos
dc.date2014-05-27T11:23:43Z
dc.date2016-10-25T18:26:16Z
dc.date2014-05-27T11:23:43Z
dc.date2016-10-25T18:26:16Z
dc.date2008-12-01
dc.date.accessioned2017-04-06T01:33:23Z
dc.date.available2017-04-06T01:33:23Z
dc.identifierJournal of Prosthodontics, v. 17, n. 8, p. 641-647, 2008.
dc.identifier1059-941X
dc.identifier1532-849X
dc.identifierhttp://hdl.handle.net/11449/70684
dc.identifierhttp://acervodigital.unesp.br/handle/11449/70684
dc.identifier10.1111/j.1532-849X.2008.00308.x
dc.identifier2-s2.0-57349162098
dc.identifierhttp://dx.doi.org/10.1111/j.1532-849X.2008.00308.x
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/891758
dc.descriptionPurpose: This study evaluated the influence of surface abrasion of transfer copings to obtain a precise master cast for a partially edentulous restoration with different inclinations. Materials and Methods: Replicas (N = 30) of a metal matrix (control group) containing two implants at 90° and 65° in relation to the benchtop were obtained using a polyether impression material and three impression techniques: square impression copings splint with dental floss and autopolymerizing acrylic resin (TRS), square impression copings abraded with aluminum oxide (TA), and square impression copings abraded with aluminum oxide and adhesive-coated (TAA). The replicas obtained in type V stone were digitalized, and the images were exported to AutoCAD software to perform the readings of possible degree alterations in implant inclinations. The results were submitted to analysis of variance (ANOVA) and Tukey test (α < 0.05). Results: Comparing the techniques with regard to the 90° implant inclination, no statistical difference was observed between the three techniques and the control group. Analyzing the three techniques with regard to the 65° implant inclination, no significant difference was seen between technique TA and the control group. Conclusions: Technique TA presented more accurate master casts than TRS and TAA techniques. The angulated implant (65°) tended to generate more imprecise master casts than implants perpendicular to the surface. © 2008 by The American College of Prosthodontists.
dc.languageeng
dc.relationJournal of Prosthodontics
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectDental implants
dc.subjectDental impression materials
dc.subjectDental impression techniques
dc.subjectProsthodontics
dc.subjectacrylic acid resin
dc.subjectadhesive agent
dc.subjectaluminum oxide
dc.subjectbiomedical and dental materials
dc.subjectcalcium sulfate
dc.subjectresin
dc.subjectchemistry
dc.subjectcomparative study
dc.subjectcomputer program
dc.subjectdental etching
dc.subjectdental impression
dc.subjectdenture
dc.subjecthuman
dc.subjectimage processing
dc.subjectimpregum
dc.subjectmaterials testing
dc.subjectstatistics
dc.subjectsurface property
dc.subjecttooth implantation
dc.subjecttooth prosthesis
dc.subjectAcrylic Resins
dc.subjectAdhesives
dc.subjectAluminum Oxide
dc.subjectCalcium Sulfate
dc.subjectDental Abutments
dc.subjectDental Etching
dc.subjectDental Implants
dc.subjectDental Impression Materials
dc.subjectDental Impression Technique
dc.subjectDental Materials
dc.subjectDental Prosthesis Design
dc.subjectHumans
dc.subjectImage Processing, Computer-Assisted
dc.subjectMaterials Testing
dc.subjectResins, Synthetic
dc.subjectSoftware
dc.subjectSurface Properties
dc.titleAccuracy of impression techniques for implants. Part 1 - Influence of transfer copings surface abrasion
dc.typeOtro


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