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Inhalation risk assessment of naphthalene emitted from deodorant balls in public toilets

Jung Y, Kim PG, Kwon JH

The inhalation of naphthalene used as deodorant balls in public toilets could be an important cancer risk factor. The atmospheric concentration of naphthalene in public toilets (C(in)) was estimated both...
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An innovative method in venous coronary cast technique

Shanthini , Suma HY

Polyurethane foam (PU foam) is a new material which is being used in producing both macro-anatomical and micro-anatomical specimens. PU foam is simple to use, without need for special equipment....
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Development of a Novel Spawn (Block Spawn) of an Edible Mushroom, Pleurotus ostreatus, in Liquid Culture and its Cultivation Evaluation

Zhang WR, Liu SR, Kuang YB, Zheng SZ

Mushroom cultivation has gained increased attention in recent years. Currently, only four types of spawn, including sawdust spawn, grain spawn, liquid spawn, and stick spawn, are commonly available for mushroom...
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Evaluating Pedicle-Screw Instrumentation Using Decision-Tree Analysis Based on Pullout Strength

Varghese V, Krishnan V, Kumar GS

STUDY DESIGN: A biomechanical study of pedicle-screw pullout strength. PURPOSE: To develop a decision tree based on pullout strength for evaluating pedicle-screw instrumentation. OVERVIEW OF LITERATURE: Clinically, a surgeon’s understanding of the...
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Testing Pullout Strength of Pedicle Screw Using Synthetic Bone Models: Is a Bilayer Foam Model a Better Representation of Vertebra?

Varghese V, Krishnan V, Kumar GS

STUDY DESIGN: A biomechanical study. PURPOSE: A new biomechanical model of the vertebra has been developed that accounts for the inhomogeneity of bone and the contribution of the pedicle toward the...
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Comparison of Calcium Alginate and Polyurethane Foam Used as Nasal Packings after Endonasal Dacryocystorhinostomy

Choi S, Seo Y, Ko JS, Song YJ, Yoon JS

PURPOSE: To compare the effectiveness of calcium alginate (Algi-pack®)and polyurethane foam (Nasopore®), two types of absorbable packing used for nasal packing after endonasal dacryocystorhinostomy. METHODS: We performed a retrospective chart review...
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Comparison of the Pullout Strength of Different Pedicle Screw Designs and Augmentation Techniques in an Osteoporotic Bone Model

Kiyak G, Balikci T, Heydar AM, Bezer M

STUDY DESIGN: Mechanical study. PURPOSE: To compare the pullout strength of different screw designs and augmentation techniques in an osteoporotic bone model. OVERVIEW OF LITERATURE: Adequate bone screw pullout strength is a...
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Efficacy and Safety of Autologous Stromal Vascular Fraction in the Treatment of Empty Nose Syndrome

Kim DY, Hong HR, Choi EW, Yoon SW, Jang YJ

OBJECTIVES: Regenerative treatment using stem cells may serve as treatment option for empty nose syndrome (ENS), which is caused by the lack of turbinate tissue and deranged nervous system in...
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Two Cases of Corneal Edema Due to Vaporized Amine

Hwang Y, Cho YK

PURPOSE: We report two cases of corneal edema in patients who presented with bilateral blurry vision due to vaporized amines while working in a polyurethane processing plant. CASE SUMMARY: A 28-year-old...
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Methods used in the study, Evaluation of a polyurethane foam dressing impregnated with 3% povidone-iodine (Betafoam) in a rat wound model, led to unreliable results

Benskin LL

No abstract available.
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Evaluation of a polyurethane foam dressing impregnated with 3% povidone-iodine (Betafoam) in a rat wound model

Lee JW, Song KY

PURPOSE: The purpose of this study was to evaluate the efficacy of Betafoam in terms of wound healing and safety. METHODS: Fifty-four male adult Sprague-Dawley rats (weight, 200–250 g) were used...
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Biomechanical Comparison of Inter-fragmentary Compression Pressures: Lag Screw versus Herbert Screw for Anterior Odontoid Screw Fixation

Park JW, Kim KT, Sung JK, Park SH, Seong KW, Cho DC

OBJECTIVE: The purpose of the present study was to compare inter-fragmentary compression pressures after fixation of a simulated type II odontoid fracture with the headless compression Herbert screw and a...
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Establishment of a Dental Unit Biofilm Model Using Well-Plate

Yoon HY, Lee SY

The water discharged from dental unit waterlines (DUWLs) is heavily contaminated with bacteria. The development of efficient disinfectants is required to maintain good quality DUWL water. The purpose of this...
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Comparison of mechanical and biological properties of zirconia and titanium alloy orthodontic micro-implants

Choi HW, Park YS, Chung SH, Jung MH, Moon W, Rhee SH

OBJECTIVE: The aim of this study was to compare the initial stability as insertion and removal torque and the clinical applicability of novel orthodontic zirconia micro-implants made using a powder...
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Mechanical evaluation of the use of conventional and locking miniplate/screw systems used in sagittal split ramus osteotomy

Vieira Santos ZTB, Goulart DR, Sigua-Rodriguez EA, Pozzer L, Olate S, Albergaria-Barbosa JR

OBJECTIVES: The aim of this study was to compare the mechanical resistance of four different osteosyntheses modeled in two different sagittal split ramus osteotomy (SSRO) designs and to determine the...
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Accuracy of several implant bite registration techniques: an in-vitro pilot study

Park DH, Park JM, Choi JW, Kang ES, Bae EB, Jeon YC, Jeong CM, Yun MJ, Huh JB

PURPOSE: This study evaluated the accuracies of different bite registration techniques for implant-fixed prostheses using three dimensional file analysis. MATERIALS AND METHODS: Implant fixtures were placed on the mandibular right second...
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The Effect of Polyurethane Scaffold Surface Treatments on the Adhesion of Chondrocytes Subjected to Interstitial Perfusion Culture

Raimondi M, Bertoldi S, Caddeo S, Farè S, Arrigoni C, Moretti M

The purpose of this study was to measure chondrocytes detachment from cellularized constructs cultured in a perfusion bioreactor, and to evaluate the effect of different scaffold coatings on cell adhesion...
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Developing a Dental Unit Waterline Model Using General Laboratory Equipments

Yoon HY, Lee SY

Water supplied through dental unit waterlines (DUWLs) has been shown to contain high number of bacteria. To reduce the contamination of DUWLs, it is essential to develop effective disinfectants. It...
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Primary implant stability in a bone model simulating clinical situations for the posterior maxilla: an in vitro study

Han HC, Lim HC, Hong JY, Ahn SJ, Han JY, Shin SI, Chung JH, Herr Y, Shin SY

PURPOSE: The aim of this study was to determine the influence of anatomical conditions on primary stability in the models simulating posterior maxilla. METHODS: Polyurethane blocks were designed to simulate monocortical...
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A Case of Nasal Cavity Foreign Bodies by Inhalation of Polyurethane Foam

Lee JH, Park JS, Lee KC, Hong SJ

Foreign bodies in the nasal cavity are commonly encountered in otorhinolaryngologic practice, particularly among children and mentally handicapped patients. Such foreign bodies include plastic toys, pebbles, seeds, buttons, and many...
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