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A comparative biomechanical study of original and compatible titanium bases: evaluation of screw loosening and 3D-crown displacement following cyclic loading analysis

Ožiūnas R, Sakalauskienė J, Jegelevičius D, Janužis G

PURPOSE. This study evaluated screw loosening and 3D crown displacement after cyclic loading of implant-supported incisor crowns cemented with original titanium bases or with three compatible, nonoriginal components. MATERIALS AND...
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Effect of posterior span length on the trueness and precision of 3 intraoral digital scanners: A comparative 3-dimensional in vitro study

Fattouh M, Mohamed Kenawi LM, Fattouh H

Purpose: This in vitro study measured and compared 3 intraoral scanners’ accuracy (trueness and precision) with different span lengths Materials and Methods: Three master casts were prepared to simulate 3 different...
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Implant-supported Full Mouth Rehabilitation Using Customized Non-precious Metal Casting Abutments: A Case Report

Kim S, Lee JI

When treating an edentulous patient, it is difficult to rehabilitate and maintain long-term functionality with an implant-supported fixed prosthesis. This is because resorption of the remaining alveolar bone may cause...
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Joint stability of internal conical connection abutments with or without hexagon indexes: an in vitro study

Lee SW, Cha MS, Lee JH, Cho LR, Park CJ

Purpose: The purpose of this study was to compare the axial displacement of the hexagonal and conical abutment in internal conical connection implant after screw tightening and cyclic loading. Materials...
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Post and core build-ups in crown and bridge abutments: Bio-mechanical advantages and disadvantages

Mamoun J

Dentists often place post and core buildups on endodontically treated abutments for crown and bridge restorations. This article analyzes the bio-mechanical purposes, advantages and disadvantages of placing a core or...
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Fracture resistance of zirconia and resin nano ceramic implant abutments according to thickness after thermocycling

Lee JW, Cha HS, Lee JH

PURPOSE: The aim of this in vitro study is to investigate load bearing capacity of esthetic abutments according to the type of material and wall thickness. MATERIALS AND METHODS: 70 specimens...
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Biocompatibility study of lithium disilicate and zirconium oxide ceramics for esthetic dental abutments

Brunot-Gohin C, Duval JL, Verbeke S, Belanger K, Pezron I, Kugel G, Laurent-Maquin D, Gangloff S, Egles C

PURPOSE: The increasing demand for esthetically pleasing results has contributed to the use of ceramics for dental implant abutments. The aim of this study was to compare the biological response...
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Influence of the accuracy of abutment tooth preparation on the marginal adaptation of Co-Cr alloy copings fabricated with a selective laser sintering technology

Kim SR, Koak JY, Heo SJ, Kim SK, Kim MJ

PURPOSE: The purpose of present study is to examine the correlation between the accuracy of abutment preparation and the marginal adaptation of metal coping. With this view, this study compared...
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The reliability of an easy measuring method for abutment convergence angle with a computer-aided design (CAD) system

Seo YJ, Kwon TK, Han JS, Lee JB, Kim SH, Yeo IS

PURPOSE: The purpose of this study was to evaluate the intra-rater reliability and inter-rater reliability of three different methods using a drawing protractor, a digital protractor after tracing, and a...
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Bacterial adhesion and colonization differences between zirconia and titanium implant abutments: an in vivo human study

de Oliveira GR, Pozzer L, Cavalieri-Pereira L, de Moraes , Olate S, de Albergaria Barbosa JR

  • KMID: 2438858
  • J Periodontal Implant Sci.
  • 2012 Dec;42(6):217-223.
PURPOSE: Several parameters have been described for determining the success or failure of dental implants. The surface properties of transgingival implant components have had a great impact on the long-term...
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The use of definitive implant abutments for the fabrication of provisional crowns: a case series

Bilhan H, Geckili O, Mumcu E

PURPOSE: The anterior region is a challenge for most clinicians to achieve optimal esthetics with dental implants. The provisional crown is a key factor in the success of obtaining pink...
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Comparison of retentive forces of temporary cements and abutment height used with implant-supported prostheses

Lee DH, Suh KW, Ryu JJ

  • KMID: 2118759
  • J Korean Acad Prosthodont.
  • 2008 Jun;46(3):280-289.
STATEMENT OF THE PROBLEM: Recent data regarding the effects the cement type and abutment heights on the retentive force of a prosthetic crown are inconsistent and unable to suggest...
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