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Effect of tack cure time on polymerization shrinkage of dual-cure resin cement

Choi Y, Heo YK, Jung JH, Chang HS

When luting indirect restorations with dual-cure resin cement (DCRC), excess cement can be easily removed by performing tack cure of DCRC for a few seconds. The purpose of this study...
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Assessment of the radiant emittance of damaged/contaminated dental lightcuring tips by spectrophotometric methods

Balhaddad AA, Garcia I, Collares F, Felix CM, Ganesh N, Alkabashi Q, Massei W, Strassler H, Melo MA

Objectives: This study investigated the effects of physically damaged and resin-contaminated tips on radiant emittance, comparing them with new undamaged, non-contaminated tips using 3 pieces of spectrophotometric laboratory equipment. Materials and...
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Real time measurement of the transmittance change of composite during light curing

Oh HJ, Choi GW, Lee CH, Lim BS, Lee IB

The purpose of this study was to measure the transmittance change of composites during light curing in real time according to different shades and thicknesses. An instrument using pulse width...
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Comparison of polymerization shrinkage of dual-cure core build-up resin according to shade and curing mode

Choi Y, Lee K, Chang HS

Polymerization shrinkage of composite resin is closely related to direct or indirect restoration failure. Many studies have reported that curing mode affects polymerization, but few studies have reported whether polymerization...
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Evaluation of the Changes in Polymerization of TheraCal LC with Various Light-curing Time and Distance

Bae S, Lee J, Ra J

The purpose of this study was to evaluate polymerization of TheraCal LC, one of the tricalcium silicate cements. To measure the Vickers hardness number (VHN), the specimens were cured at...
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Alyssin and Iberin in Cruciferous Vegetables Exert Anticancer Activity in HepG2 by Increasing Intracellular Reactive Oxygen Species and Tubulin Depolymerization

Pocasap P, Weerapreeyakul N, Thumanu K

To determine the chemopreventive potential of alyssin and iberin, the in vitro anticancer activities and molecular targets of isothiocyanates (ITCs) were measured and compared to sulforaphane in hepatocellular carcinoma cell...
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The influence of nanofillers on the properties of ethanol-solvated and non-solvated dental adhesives

da Cruz LB, Oliveira M, Saraceni C, Lima AF

OBJECTIVES: The aim of this study was to evaluate the influence of different concentrations of nanofillers on the chemical and physical properties of ethanol-solvated and non-solvated dental adhesives. MATERIALS AND METHODS:...
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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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Evaluation of polymerization ability of resin-based materials used for teeth splinting

Lee JG, Kim SY, Lee JK, Kim JW, Park SH, Cho KM

PURPOSE: The aim of this study was to evaluate the polymerization ability of resin-based materials used for teeth splinting according to the thickness of cure. MATERIALS AND METHODS: For this study,...
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The effect of thermocycling on the degree of conversion and mechanical properties of a microhybrid dental resin composite

Ghavami-Lahiji M, Firouzmanesh M, Bagheri H, Jafarzadeh Kashi TS, Razazpour , Behroozibakhsh M

OBJECTIVE: The purpose of this study was to investigate the degree of conversion (DC) and mechanical properties of a microhybrid Filtek Z250 (3M ESPE) resin composite after aging. METHOD: The specimens...
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Effect of polymerization method and fabrication method on occlusal vertical dimension and occlusal contacts of complete-arch prosthesis

Lima AP, Vitti RP, Amaral M, Neves AC, da Silva Concilio LR

PURPOSE: This study evaluated the dimensional stability of a complete-arch prosthesis processed by conventional method in water bath or microwave energy and polymerized by two different curing cycles. MATERIALS AND METHODS:...
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Post space preparation timing of root canals sealed with AH Plus sealer

Kim HR, Kim YK, Kwon TY

OBJECTIVES: To determine the optimal timing for post space preparation of root canals sealed with epoxy resin-based AH Plus sealer in terms of its polymerization and influence on apical leakage. MATERIALS...
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Actual duration of patient-reported mucositis: Far longer than 2 to 4 weeks and may be avoidable altogether

McCullough RW

The impression that oral mucositis is a brief 14–28 day-consequence of chemoradiation is misguided. Clinically significant patient-reported oral mucositis may last 46 to 102 days depending on the treatment schedule...
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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 effects of dentin bonding agent formulas on their polymerization quality, and together with tooth tissues on their microleakage and shear bond strength: an explorative 3-step experiment

Erfan M, Jafarzadeh-Kashi TS, Ghadiri M, Rakhshan V

PURPOSE: Bonding agents (BA) are the crucial weak link of composite restorations. Since the commercial materials' compositions are not disclosed, studies to formulize the optimum ratios of different components are...
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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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Effects of immediate and delayed light activation on the polymerization shrinkage-strain of dual-cure resin cements

Lee SY, Kim SH, Ha SR, Choi YS, Kim HK

PURPOSE: This study was designed to compare the amount of polymerization shrinkage of dual-cure resin cements according to different polymerization modes and to determine the effect of light activation on...
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Polymerization behavior and thermal characteristics of two new composites at five temperatures: refrigeration to preheating

Jafarzadeh-Kashi TS, Mirzaii M, Erfan M, Fazel A, Eskandarion S, Rakhshan V

PURPOSE: Heat of composite polymerization (HP) indicates setting efficacy and temperature increase of composite in clinical procedures. The purpose of this in vitro experimental study was to evaluate the effects...
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Evaluation of polymerization shrinkage stress in silorane-based composites

Ryu SJ, Cheon JH, Min JB

OBJECTIVES: The purpose of this study was to evaluate the polymerization shrinkage stress among conventional methacrylate-based composite resins and a silorane-based composite resin. MATERIALS AND METHODS: The strain gauge method was...
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Effect of two-phase fabrication method for the optimum fit of light-polymerized record bases

Huh JB, Kang MG, Shin SW, Ryu JJ

PURPOSE: The aims of this study were to suggest a method of fabrication of the record base using a light-polymerized resin by applying the two-phase fabrication method for the improvement...
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