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Microleakage

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https://www.readbyqxmd.com/read/28222209/effect-of-different-intermediary-bases-on-microleakage-of-a-restorative-material-in-class-ii-box-cavities-of-primary-teeth
#1
Faika Y Abdelmegid, Fouad S Salama, Waleed M Al-Mutairi, Saud K Al-Mutairi, Sultan O Baghazal
INTRODUCTION: The aim of this in vitro study was to assess and compare the effect of different intermediary bases on microleakage between tooth and a nanocomposite interface in Class II box cavities in primary teeth. METHODS: Standard Class II box cavities were prepared in 52 primary molars and randomly divided into 9 groups according to the intermediary base used (Multicore Flow, Fuji II LC, SDR, Smart Dentin Replacement, and Biodentine). All specimens were subjected to thermocycling and prepared for microleakage testing and evaluation...
February 21, 2017: International Journal of Artificial Organs
https://www.readbyqxmd.com/read/28210443/evaluation-of-the-effect-of-adding-micro-hydroxyapatite-and-nano-hydroxyapatite-on-the-microleakage-of-conventional-and-resin-modified-glass-ionomer-cl-v-restorations
#2
Farahnaz Sharafeddin, Negar Feizi
BACKGROUND: Pulpal reaction to restorative materials depends on marginal microleakage, which is a dynamic phenomenon that allows bacteria and fluids to traverse across the tooth-restoration interface. Glass-ionomer cement (GIC) exhibits low microleakage due to direct bonding to tooth structures. Hydroxyapatite (HAP) based on the similarity with tooth structure may decrease the microleakage. The aim of this in vitro study was to evaluate marginal microleakage of a mixture of conventional and resin-modified glass-ionomer (RMGI) with micro- and nano-HAP...
February 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/28209018/letter-to-editor-coronal-microleakage-of-the-resilon-and-gutta-percha-obturation-materials-with-epiphany-se-sealer-an-in-vitro-study
#3
Saravanakarthikeyan Balasubramanian, J S Sivakumar
No abstract text is available yet for this article.
December 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28188664/an-in-vitro-investigation-of-pre-treatment-effects-before-fissure-sealing
#4
Mahshid Bagheri, Peter Pilecki, Salvatore Sauro, Martyn Sherriff, Timothy F Watson, Marie Therese Hosey
BACKGROUND: Fissure sealants prevent occlusal caries in permanent molars. Enamel preparation methods are used before fissure sealing. AIMS: To investigate effects of bioglass air-abrasion pre-treatment with and without an adhesive, on fissure enamel of permanent teeth, with respect to etchability, microleakage and microtensile bond strength. DESIGN: Half of the occlusal surfaces of 50 extracted premolars underwent bioglass air-abrasion. Dye was applied to the entire occlusal surface...
February 10, 2017: International Journal of Paediatric Dentistry
https://www.readbyqxmd.com/read/28182040/the-effect-of-acrylate-based-dental-adhesive-solvent-content-on-microleakage-in-composite-restorations
#5
Mahboubeh Mirzakhani, Sayed Mostafa Mousavinasab, Mohammad Atai
BACKGROUND: This study aimed to evaluate the effect of different percentages of ethanol solvent of an experimental methacrylate-based dentin bonding agent containing polyhedral oligomeric silsesquioxanes (POSS) on the microleakage of resin composite restorations. MATERIALS AND METHODS: In this experimental study, 42 extracted human premolar teeth used and 84 standard Class V cavities were prepared on the buccal and lingual surfaces of the teeth. The teeth were divided into 6 groups of 7...
November 2016: Dental Research Journal
https://www.readbyqxmd.com/read/28174365/assessment-of-coronal-leakage-of-temporary-restorations-in-root-canal-treated-teeth-an-in-vitro-study
#6
Pankaj K Srivastava, Ajay Nagpal, Gaurav Setya, Sunil Kumar, Alankrita Chaudhary, Kuldeep Dhanker
INTRODUCTION: Coronal leakage is one of the constant concerns in routine dental practice. It is one of the factors responsible for the failure of root canal therapy. Permanent restorations should be given as soon as possible after the completion of root canal therapy. If unavoidable, provisional restoration should be given in such a way that it maximally reduced the leakage of microorganisms and fluids from the external environment into the canal space. Hence, we evaluated the effect of saliva on the coronal leakage of temporary restorations...
February 1, 2017: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/28160094/marginal-adaptation-and-microleakage-of-a-bulk-fill-composite-resin-photopolymerized-with-different-techniques
#7
Vania Stephanie Sánchez Gamarra, Gilberto Antonio Borges, Luiz Henrique Burnett Júnior, Ana Maria Spohr
The purpose of this study was to investigate the marginal adaptation and microleakage of SonicFill composite with different photopolymerization techniques. Class II cavities were prepared in 40 premolars and divided into groups according to the photopolymerization technique (n = 10): G1:1200 mW/cm(2) for 20 s; G2:1200 mW/cm(2) for 40 s; G3:Soft-start with 650 mW/cm(2) for 5 s and 1200 mW/cm(2) for 15 s; G4:Soft-start with 650 mW/cm(2) for 10 s and 1200 mW/cm(2) for 30 s. The cavities were restored with OptiBond FL adhesive and SonicFill...
February 3, 2017: Odontology
https://www.readbyqxmd.com/read/28131414/diversity-of-enterococcus-faecalis-genotypes-from-multiple-oral-sites-associated-with-endodontic-failure-using-repetitive-sequence-based-polymerase-chain-reaction-and-arbitrarily-primed-polymerase-chain-reaction
#8
Maraísa G Delboni, Brenda P F A Gomes, Priscila A Francisco, Fabrício B Teixeira, David Drake
INTRODUCTION: The aim of this study was to evaluate the diversity and similarity of Enterococcus faecalis genotype isolates from multiple oral sites using repetitive sequence-based polymerase chain reaction and arbitrarily primed polymerase chain reaction (AP-PCR). METHODS: Forty-two endodontically treated teeth with apical periodontitis were selected. A total of 126 microbial samples were collected from 3 different sites (saliva, pulp chamber, and root canals, all n = 42) during the nonsurgical retreatment procedures...
January 25, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28127325/effect-of-re-etching-of-oxalate-occluded-dentin-on-microleakage-of-composite-resin-restorations
#9
Aida Saffarpour, Maryam Ghavam, Anna Saffarpour, Kimiya Sadighi, Mohammad Javad Kharazifard
OBJECTIVES: This study aimed to assess the effect of re-etching of desensitized dentin for five and 10 seconds on marginal microleakage of composite restorations. MATERIALS AND METHODS: Class V cavities (4×2×2mm) were prepared on the buccal surfaces of 64 third molars and randomly divided into four groups of 16. In the control group, Single Bond (SB) adhesive was applied after etching. In BB+SB group, after application of BisBlock (BB) desensitizer agent (which needs etching), SB adhesive was used...
September 2016: Journal of Dentistry of Tehran University of Medical Sciences
https://www.readbyqxmd.com/read/28127314/effect-of-chlorhexidine-application-protocol-on-durability-of-marginal-seal-of-class-v-restorations
#10
Anna Saffarpour, Aida Saffarpour, Mohammad Javad Kharazifard, Atoussa Entezami Rad
OBJECTIVES: This study aimed to evaluate the effect of chlorhexidine (CHX) application protocol on durability of marginal seal of class V composite restorations. MATERIALS AND METHODS: Class V cavities (4×2×1.5mm) were prepared in the buccal surfaces of 160 human third molars. The teeth were randomly divided into five groups (n=32) of (G1) CHX+rinse+etching, (G2) CHX+etching, (G3) etching+CHX+rinse, (G4) etching+ CHX, and (G5) etching alone as the control group...
August 2016: Journal of Dentistry of Tehran University of Medical Sciences
https://www.readbyqxmd.com/read/28127313/effect-of-lactic-acid-on-microleakage-of-class-v-low-shrinkage-composite-restorations
#11
Sedigheh Sadat Hashemikamangar, Seyed Jalal Pourhashemi, Zohre Nekooimehr, Mehrzad Gholampur Dehaki, Mohamad Javad Kharazifard
OBJECTIVES: To assess the effect of lactic acid (LA) on microleakage of silorane-based composite restorations and methacrylate-based composites with self-etch and etch-and-rinse bonding systems. MATERIALS AND METHODS: Class V cavities were prepared in 120 extracted human teeth, divided into four groups and restored as follows: 1. Silorane-based composite+P90 adhesive system (P90); 2. Filtek Z250+SE Bond (Z250SE); 3. Filtek Z350+SE Bond (Z350SE) and 4. Filtek Z250+Single Bond (Z250SB)...
August 2016: Journal of Dentistry of Tehran University of Medical Sciences
https://www.readbyqxmd.com/read/28127158/comparison-of-microleakage-and-penetration-depth-between-hydrophilic-and-hydrophobic-sealants-in-primary-second-molar
#12
Pritesh N Gawali, Vishwas B Chaugule, Amey M Panse
INTRODUCTION: Optimal pit and fissure sealing is determined by surface preparation techniques and choice of materials. The performance of pit and fissure sealant materials has been intensively investigated, yet no single product is reported as an ideal sealant. In children, moisture control during cavity preparation is always a big challenge, and hence, hydrophilic sealants have been developed. AIM: To compare the microleakage and penetration depth of hydrophilic and hydrophobic sealants using acid-etching on dry and moist surfaces...
October 2016: International Journal of Clinical Pediatric Dentistry
https://www.readbyqxmd.com/read/28117858/tooth-bleaching-effects-%C3%A2-on-the-adhesive-interface-%C3%A2-of-composite-restorations
#13
Lorena Silva, Geraldo Thedei, Maria Angélica Menezes-Oliveira, Ruchele D Nogueira, Vinicius Geraldo-Martins
The objective of this study was to evaluate the effects of different bleaching techniques on the tooth-restoration interface of composite restorations. Cavities (3 x 3 x 2 mm) were prepared in 100 bovine incisor fragments, which were etched with a conventional adhesive system and restored with a nanocomposite. The fragments were randomly divided into five groups (n = 20): Control (no bleaching), At-home bleaching (HB) (10% hydrogen peroxide [HP]), In-office bleaching (OB) (35% HP), LED-activated bleaching (LB) (35% HP activated by LED), and Laser-activated bleaching (LaB) (35% HP activated by diode laser, λ = 880 nm)...
2017: International Journal of Esthetic Dentistry
https://www.readbyqxmd.com/read/28117855/marginal-sealing-of-a-porcelain-%C3%A2-laminate-veneer-luted-with-%C3%A2-three-different-resin-cements-%C3%A2-on-fluorosed-teeth
#14
Fereshteh Shafiei, Mahtab Memarpour, Zahra Jowkar
AIM: The purpose of this study was to investigate the sealing ability of three different resin cements for the luting of a porcelain laminate veneer (PLV) to the enamel and dentin of fluorosed teeth. MATERIALS AND METHOD: Thirty incisors with moderate fluorosis according to the Thylstrup-Fejerskov Index (TFI = 4 to 6) received a veneer preparation with dentin margins at the gingival third. The IPS Empress (Ivoclar Vivadent) veneers were luted to the teeth of three groups (n = 10) using three different resin cements: Group 1: Excite DSC/Variolink II - etch-and-rinse (E&R), Group 2: ED Primer II/Clearfil Esthetic - self-etch (SE), Group 3: RelyX Unicem - self-adhesive (SA)...
2017: International Journal of Esthetic Dentistry
https://www.readbyqxmd.com/read/28116427/-study-of-dental-apex-sealing-effects-after-post-space
#15
Zhen-Zhen Qu, Xiao-Guang Li, Qing Wang
PURPOSE: To evaluate the sealing ability of three different lengths of root canal fillings after post space and two different obturation techniques by using a glucose leakage test, and provide theoretical basis for clinical selection of best collocation of root canal filling methods and residual root canal filling materials. METHODS: One hundred and thirty-two extracted single-root teeth were randomly divided into 6 experimental groups(n=20 each), positive(n=6)and negative controls(n=6)...
October 2016: Shanghai Kou Qiang Yi Xue, Shanghai Journal of Stomatology
https://www.readbyqxmd.com/read/28116425/-effects-of-mmps-inhibitors-on-microleakage-with-wet-bonding-technique
#16
Cong Zhao, Shuang Chi, He Li, Tian-Bo Li, Zhi-Min Zhang
PURPOSE: To observe the effects of matrix metalloproteinases(MMPs) inhibitors on microleakage with wet bonding technique. METHODS: Twenty-seven premolars were randomly assigned to 3 groups. Class Ⅴ cavities were prepared in the neck of the teeth and treated with distilled water, 2% chlorhexidine (CHX) or 2% monocycline (MI) for 60 seconds. Resin was used to restore the prepared cavities following application of luting agent. Samples in each group were soaked for 1 h with 10% NaClO and then 2 layers of nail polish were applied, followed by treatment with 50wt% ammoniated silver nitrate (ASN), and developing solution in turn...
October 2016: Shanghai Kou Qiang Yi Xue, Shanghai Journal of Stomatology
https://www.readbyqxmd.com/read/28112852/investigation-of-the-er-yag-laser-and-diamond-bur-cavity-preparation-on-the-marginal-microleakage-of-class-v-cavities-restored-with-different-flowable-composites
#17
Elif Bahar Tuna, Emre Ozel, Yelda Kasimoglu, Erhan Firatli
The purpose of this study was to evaluate the efficiency of the Er:YAG laser and diamond bur cavity preparation on the marginal microleakage of Class V cavities. Group 1: bur preparation (bp) + Vertise Flow (VF); Group 2: laser preparation (lp) + VF; Group 3: bp + Adper Easy One (AEO) + Filtek Ultimate Flowable Composite (FUFC); Group 4: lp + AEO + FUFC; Group 5: bp + Clearfil S3 Bond (CSB) + Clearfil Majesty Flow (CMF); Group 6: lp + CSB + CMF. Data were analyzed by Kruskal-Wallis and Mann-Whitney U tests (p < ...
January 23, 2017: Microscopy Research and Technique
https://www.readbyqxmd.com/read/28070263/evaluating-the-microshear-bond-strength-and-microleakage-of-flowable-composites-containing-zinc-oxide-nano-particles
#18
Koorosh Teymoornezhad, Homayoun Alaghehmand, Ghazaleh Daryakenari, Soraya Khafri, Mitra Tabari
INTRODUCTION: Preventive resin restorations (PRR) are the conservative choice for the most common carious lesions in children. Thus, new age flowable resin composites with higher filler content are readily used. The aim of this study was to evaluate the microshear bond strength and microleakage of two flowable resin composites containing different percentages of nano zinc oxide (NZnO) particles, which have proven to have antimicrobial properties. METHODS: This experimental in-vitro study was carried out in the Dental Material Research Center of Babol University of Medical Sciences in 2015...
November 2016: Electronic Physician
https://www.readbyqxmd.com/read/28052214/effect-of-silver-nanoparticle-added-pit-and-fissure-sealant-in-the-prevention-of-dental-caries-in-children
#19
Enid Karina Salas-López, Mauricio Pierdant-Pérez, Juan Francisco Hernández-Sierra, Facundo Ruíz, Peter Mandeville, Amaury J Pozos-Guillén
OBJECTIVE: The objective of this study was to evaluate the effects of pit and fissure sealant mixed with silver nanoparticles on dental caries, by means of monthly measurement of fluorescence with DIAGNOdent over six months. STUDY DESIGN: This study was divided in two phases: experimental and clinical. In the experimental phase, the adhesion and microleakage of the pit and fissure sealant experiment were evaluated. Two groups of 10 teeth, without serious carious lesions, were included...
2017: Journal of Clinical Pediatric Dentistry
https://www.readbyqxmd.com/read/28052208/microleakage-evaluation-of-composite-restorations-following-papain-based-chemo-mechanical-caries-removal-in-primary-teeth
#20
Marwa Abdel Hafez, Mona Elkateb, Sonia El Shabrawy, Amel Mahmoud, Omar El Meligy
AIM: To evaluate the microleakage of composite restorations following Papain-based chemo-mechanical caries removal compared to the conventional drilling method. The characteristic of the hybrid layer was also studied using scanning electron microscopy. STUDY DESIGN: The sample included thirty freshly extracted and exfoliated primary molars with open proximal carious dentin lesions. Teeth were divided into two equal groups, according to method of caries removal. Following caries removal, cavity preparations were restored with composite resin...
2017: Journal of Clinical Pediatric Dentistry
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