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Surface characterization of calcium phosphate coating formed on chitosan and alkali-treaDted titanium metal

Park KH, Lee WY, Song HJ, Park YJ

The calcium phosphate coating on various pretreated metals was prepared by soaking in modified simulated body fluid (m-SBF) solution. The coating structure and its surface morphologies were determined by x-ray...
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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 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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In Vivo Biocompatibility and Improved Compression Strength of Reinforced Keratin/Hydroxyapatite Scaffold

Fan J, Yu MY, Lei TD, Wang YH, Cao FY, Qin X, Liu Y

A rapid freezing/lyophilizing/reinforcing process is suggested to fabricate reinforced keratin/hydroxyapatite (HA) scaffold with improved mechanical property and biocompatibility for tissue engineering. The keratin, extracted from human hair, and HA mixture...
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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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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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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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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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Insights into the Therapeutic Potential of Heparinized Collagen Scaffolds Loading Human Umbilical Cord Mesenchymal Stem Cells and Nerve Growth Factor for the Repair of Recurrent Laryngeal Nerve Injury

Pan Y, Jiao G, Yang J, Guo R, Li J, Wang C

Recurrent laryngeal nerve (RLN) injury can result in unilateral or bilateral vocal cords paralysis, thereby causing a series of complications, such as hoarseness and dyspnea. However, the repair of RLN...
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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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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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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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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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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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Investigation of flexural strength and cytotoxicity of acrylic resin copolymers by using different polymerization methods

Sahin O, Ozdemir AK, Turgut M, Boztug A, Sumer Z

PURPOSE: The aim of this study was to appraise the some mechanical properties of polymethyl methacrylate based denture base resin polymerized by copolymerization mechanism, and to investigate the cytotoxic effect...
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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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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 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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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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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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