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Fourier transform infrared spectroscopy for analysis of kidney stones

Khan AH, Imran S, Talati J, Jafri L

PURPOSE: To compare the results of a chemical method of kidney stone analysis with the results of Fourier transform infrared (FT-IR) spectroscopy. MATERIALS AND METHODS: Kidney stones collected between June and...
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The effect of silane treatment timing and saliva contamination on shear bond strength of resin cement to porcelain

Ro YS, Ryu JJ, Suh KW

STATEMENT OF PROBLEM: Porcelain veneers have become a popular treatment modality for aesthetic anterior prosthesis. Fitting porcelain veneers in the mouth usually involve a try-in appointment, which frequently results...
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The effect of light sources and CAD/CAM monolithic blocks on degree of conversion of cement

Çetindemir AB, Şermet B, Öngül D

PURPOSE: To assess the degree of conversion (DC) and light irradiance delivered to light-cured and dual-cured cements by application of different light sources through various types of monolithic computer-aided design...
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Chitosan/Graphene and Poly(D, L-Lactic-co-Glycolic Acid)/Graphene Nano-Composites for Nerve Tissue Engineering

Soltani S, Ebrahimian-Hosseinabadi M, Kharazi AZ

This study aimed at examining and comparing the fabrication process, electrical conductivity, and biological properties of Chitosan/Graphene membranes and poly(D, L-lactic-co-glycolic acid) (PLGA)/Graphene membranes. Nano-composite membranes were made using chitosan...
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Degree of conversion of two dual-cured resin cements light-irradiated through zirconia ceramic disks

Kim MJ, Kim KH, Kim YK, Kwon TY

PURPOSE: The aim of this Fourier transform infrared (FTIR) spectroscopic study was to measure the degree of conversion (DC) of dual-cured resin cements light-irradiated through zirconia ceramic disks with different...
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Combined treatment with minodronate and vitamin C increases bone mineral density and strength in vitamin C-deficient rats

Segawa T, Miyakoshi , Kasukawa Y, Aonuma H, Tsuchie H, Shimada Y

  • KMID: 2309513
  • Osteoporos Sarcopenia.
  • 2016 Mar;2(1):30-37.
OBJECTIVES: Reduced bone quality caused by vitamin C deficiency in older persons may lead to incidental fragility fractures during bisphosphonate treatment, although bisphosphonate increases bone mineral density (BMD). This study...
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Pneumoconiosis in a polytetrafluoroethylene (PTFE) spray worker: a case report with an occupational hygiene study

Lee N, Baek K, Park S, Hwang I, Chung I, Choi W, Jung H, Lee M, Yang S

BACKGROUND: Using analysis of air samples from the workplace, we report on one case of pneumoconiosis in an individual who has been working in a polytetrafluoroethylene (PTFE) spraying process for...
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Degree of Conversion and Polymerization Shrinkage of Low and High Viscosity Bulk-Fill Giomer-based and Resin-based composites

Kim H, Lee J, Kim H, Kwon T, Nam S

The aim of this study was to compare the degree of conversion and polymerization shrinkage of low and high viscosity bulk-fill giomer-based and resin-based composites. Two bulk-fill giomer (Beautifil Bulk...
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The effect of resin thickness on polymerization characteristics of silorane-based composite resin

Son SA, Roh HM, Hur B, Kwon YH, Park JK

OBJECTIVES: This study examined the influence of the resin thickness on the polymerization of silorane- and methacrylate-based composites. MATERIALS AND METHODS: One silorane-based (Filtek P90, 3M ESPE) and two methacrylate-based (Filtek...
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A STUDY ON THE TENSILE STRENGTH OF REINFORCED VENEERING COMPOSITE RESINS FOR CROWN

Ahn SG, Kang DW

  • KMID: 2196023
  • J Korean Acad Prosthodont.
  • 2000 Apr;38(2):226-241.
Recently a new generation of crown and bridge veneering resins containing submicron glass fillers was introduced. These ultrasmall particle hybrid composite materials distinguish themselves, compared with conventional microfill crown and...
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Effect of intracanal medicaments used in endodontic regeneration procedures on microhardness and chemical structure of dentin

Yassen GH, Eckert GJ, Platt JA

OBJECTIVES: This study was performed to investigate the effects of different intracanal medicaments on chemical structure and microhardness of dentin. MATERIALS AND METHODS: Fifty human dentin discs were obtained from intact...
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The effect of 4-hexylresorcinol on xenograft degradation in a rat calvarial defect model

Kang YJ, Noh JE, Lee MJ, Chae WS, Lee SY, Kim SG

BACKGROUND: The objective of this study was to evaluate xenograft degradation velocity when treated with 4-hexylresorcinol (4HR). METHODS: The scapula of a cow was purchased from a local grocery, and discs...
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Degree of conversion of bis-acrylic based provisional crown and fixed partial denture materials

Kim SH, Watts DC

  • KMID: 2321756
  • J Korean Acad Prosthodont.
  • 2008 Dec;46(6):639-643.
STATEMENT OF PROBLEM: The degree of conversion may influence the ultimate mechanical and physical properties of provisional crown and fixed partial denture materials. The high levels of the unreacted residual...
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Temperature changes under demineralized dentin during polymerization of three resin-based restorative materials using QTH and LED units

Mousavinasab SM, Khoroushi , Moharreri , Atai M

  • KMID: 2316889
  • Restor Dent Endod.
  • 2014 Aug;39(3):155-163.
OBJECTIVES: Light-curing of resin-based materials (RBMs) increases the pulp chamber temperature, with detrimental effects on the vital pulp. This in vitro study compared the temperature rise under demineralized human tooth...
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The effect of acrylamide incorporation on the thermal and physical properties of denture resins

Aydogan Ayaz E, Durkan R, Bagis B

PURPOSE: Polymethyl methacrylate (PMMA) is the most commonly used denture base material despite typically low in strength. The purpose of this study was to improve the physical properties of the...
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Surface Coating of Polytetrafluoroethylene with Extracellular Matrix and Anti-CD34 Antibodies Facilitates Endothelialization and Inhibits Platelet Adhesion Under Sheer Stress

Chen L, He H, Wang M, Li X, Yin H

Expanded polytetrafluoroethylene (ePTFE) polymers do not support endothelialization because of nonconductive characteristics towards cellular attachment. Inner surface modification of the grafts can improve endothelialization and increase the long-term patency rate...
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The Alginate Layer for Improving Doxorubicin Release and Radiolabeling Stability of Chitosan Hydrogels

Kwon JI, Lee CM, Jeong HS, Oh PS, Hwang H, Lim ST, Sohn MH, Jeong HJ

PURPOSE: Chitosan hydrogels (CSH) formed through ionic interaction with an anionic molecule are suitable as a drug carrier and a tissue engineering scaffold. However, the initial burst release of drugs...
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A comparative study between degree of conversion and flexural strength of composite resins

Lee SH, Pae AR, Kim SH

  • KMID: 2000684
  • J Korean Acad Prosthodont.
  • 2006 Jun;44(3):333-342.
Statement of problem. Although many studies have been carried out to investigate the correlation between the degree of conversion and the flexural strength of composite resins, there is minimal...
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A Comparison of the Effects of Silica and Hydroxyapatite Nanoparticles on Poly(ε-caprolactone)-Poly(ethylene glycol)-Poly(ε-caprolactone)/Chitosan Nanofibrous Scaffolds for Bone Tissue Engineering

Raeisdasteh Hokmabad V, Davaran S, Aghazadeh , Alizadeh E, Salehi R, Ramazani A

BACKGROUND: The major challenge of tissue engineering is to develop constructions with suitable properties which would mimic the natural extracellular matrix to induce the proliferation and differentiation of cells. Poly(ε-caprolactone)-poly(ethylene...
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Anti-inflammatory activity of a sulfated polysaccharide isolated from an enzymatic digest of brown seaweed Sargassum horneri in RAW 264.7 cells

Sanjeewa K, Fernando I, Kim EA, Ahn G, Jee Y, Jeon YJ

BACKGROUND/OBJECTIVES: Sargassum horneri is an edible brown alga that grows in the subtidal zone as an annual species along the coasts of South Korea, China, and Japan. Recently, an extreme...
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