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Comparison of fracture strength after thermomechanical aging between provisional crowns made with CAD/CAM and conventional method

Reeponmaha T, Angwaravong O, Angwarawong T

PURPOSE. The objectives of this study were to evaluate the fracture strength and fracture patterns of provisional crowns fabricated from different materials and techniques after receiving stress from a simulated...
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Comparison analysis of fracture load and flexural strength of provisional restorative resins fabricated by different methods

Cho WT, Choi JW

PURPOSE: This study was undertaken to compare fracture and flexural strength of provisional restorative resins fabricated by additive manufacturing, subtractive manufacturing, and conventional direct technique. MATERIALS AND METHODS: Five types of...
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Effect of glide path preparation with PathFile and ProGlider on the cyclic fatigue resistance of WaveOne nickel-titanium files

Uslu G, Ä°nan U

OBJECTIVES: The aim of this study was to investigate the effect of glide path preparation with PathFile and ProGlider nickel-titanium (NiTi) files on the cyclic fatigue resistance of WaveOne NiTi...
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Critical evaluation of fracture strength testing for endodontically treated teeth: a finite element analysis study

Uzunoglu-Özyürek E, Küçükkaya Eren S, Eraslan O, Belli S

OBJECTIVES: The aim of this study was to investigate whether the diameter and direction of the plunger and simulation of the periodontal ligament (PDL) affected the stress distribution in endodontically...
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The effect of heat to remove cement on implant titanium abutment and screw

Yi HG, Gil KS, Lee JJ, Ahn SG, Seo JM

PURPOSE: The purpose of this study was to investigate the effect of heat applied to disintegrate cement on the removal torque value and fracture strength of titanium abutment and abutment...
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In vitro study of fracture strength of provisional crown materials

Karaokutan I, Sayin G, Kara O

PURPOSE: The purpose of this report was to evaluate the effect of the fabrication method and material type on the fracture strength of provisional crowns. MATERIALS AND METHODS: A master model...
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Axial wall thickness of zirconia abutment in anterior region

Moon SJ, Heo YR, Lee GJ, Kim HJ

PURPOSE: The purpose of this study was to evaluate the proper axial thickness of zirconia abutment applied to implant in the anterior region. MATERIALS AND METHODS: Zirconia abutments were prepared at...
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Bond and fracture strength of metal-ceramic restorations formed by selective laser sintering

Bae EJ, Kim JH, Kim WC, Kim HY

PURPOSE: The purpose of this study was to compare the fracture strength of the metal and the bond strength in metal-ceramic restorations produced by selective laser sintering (SLS) and by...
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Comparative study of fracture strength depending on the occlusal thickness of full zirconia crown

Jang SA, Kim YY, Park WH, Lee YS

PURPOSE: The purpose of this study was to compare the fracture strength of traditional metal-ceramic crowns and full zirconia crowns according to the occlusal thickness. MATERIALS AND METHODS: A mandibular first...
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Comparative fracture strength analysis of Lava and Digident CAD/CAM zirconia ceramic crowns

Kwon TK, Pak HS, Yang JH, Han JS, Lee JB, Kim SH, Yeo IS

PURPOSE: All-ceramic crowns are subject to fracture during function. To minimize this common clinical complication, zirconium oxide has been used as the framework for all-ceramic crowns. The aim of this...
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In vitro evaluation of fracture strength of zirconia restoration veneered with various ceramic materials

Choi YS, Kim SH, Lee JB, Han JS, Yeo IS

PURPOSE: Fracture of the veneering material of zirconia restorations frequently occurs in clinical situations. The purpose of this in vitro study was to compare the fracture strengths of zirconia crowns...
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A comparative study on the fracture behavior of zironia, glass infiltrated alumina and PFM full crown system

Lee SH, Ahn JS, Kim MH, Lim BS

PURPOSE: The purpose of this study was to compare the fracture behavior of Zironia, glass infiltrated Alumina and PFM full crown system. MATERIALS AND METHODS: Fifteen crowns for each of 3...
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The effects of short-term application of calcium hydroxide on dentin fracture strength

Shin EJ, Park YJ, Lee BN, Jang JH, Chang HS, Hwang IN, Oh WM, Hwang YC

OBJECTIVES: This in vitro study investigated whether short-term application of calcium hydroxide in the root canal system for 1 and 4 wk affects the fracture strength of human permanent teeth. MATERIALS...
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Fracture strength of zirconia ceramic crowns according to tooth position

Lee IS, Kim JM, Dong JK

  • KMID: 2321770
  • J Korean Acad Prosthodont.
  • 2010 Apr;48(2):94-100.
PURPOSE: The purpose of this study was to compare the fracture strength of the zirconia ceramic crowns according to tooth position. MATERIAL AND METHODS: After 10 metal dies were made for...
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A study on the fracture strength of collarless metal-ceramic fixed partial dentures

Yoon JW, Kim SH, Lee JB, Han JS, Yang JH

PURPOSE: The objective of this study was to evaluate fracture strength of collarless metal-ceramic FPDs according to their metal coping designs. MATERIALS AND METHODS: Four different facial margin design groups were...
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Fracture load and marginal fitness of zirconia ceramic coping by design and coloration

Shin MR, Kim MJ, Oh SC

PURPOSE: The purpose of this study was to compare the marginal fitness and fracture load of the zirconia copings according to the design with different thickness and coloration. MATERIAL AND METHODS:...
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Fracture resistance of the three types of undermined cavity filled with composite resin

Choi HS, Shin DH

It was reported that esthetic composite resin restoration reinforces the strength of remaining tooth structure with preserving the natural tooth structure. However, it is unknown how much the strength would...
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Comparative study in fracture strength of zirconia cores fabricated with three different CAD/CAM systems

Shin ES, Lee YS, Park WH

  • KMID: 2321739
  • J Korean Acad Prosthodont.
  • 2008 Feb;46(1):22-30.
PURPOSE: The purpose of this study is to compare three different CAD/CAM systems through the fracture strength of zirconia core and to evaluate the clinical availability of each system. MATERIAL...
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Fracture strength of tie wings in a newly-developed polycarbonate bracket

Sun MK, Lee KH, Hwang HS

  • KMID: 2273343
  • Korean J Orthod.
  • 2007 Jun;37(3):204-211.
OBJECTIVE: With an increasing demand for esthetic orthodontic appliances, the interest in polycarbonate brackets has also increased. However, polycarbonate bracket wings are prone to fracture. The purpose of this study...
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Comparative study on the fracture strength of metal-ceramic versus composite resin-veneered metal crowns in cement-retained implant-supported crowns under vertical compressive load

Pae A, Jeon KA, Kim MR, Kim SH

  • KMID: 2195651
  • J Korean Acad Prosthodont.
  • 2007 Jun;45(3):295-302.
STATEMENT OF PROBLEM: Fracture of the tooth-colored superstructure material is one of the main prosthetic complications in implant-supported prostheses. PURPOSE: The purpose of this in vitro study was to compare the...
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