keyword
MENU ▼
Read by QxMD icon Read
search

Microleakage

keyword
https://www.readbyqxmd.com/read/28422595/microleakage-of-sealants-after-phosphoric-acid-er-yag-laser-and-air-abrasion-enamel-conditioning-systematic-review-and-meta-analysis
#1
Ana Caroline Fumes, Daniele Lucca Longo, Andiara De Rossi, Tatiana Kelly da Silva Fidalgo, Francisco Wanderley Garcia de Paula E Silva, Maria Cristina Borsatto, Erika Calvano Küchler
PURPOSE: The aim of this systematic review and meta-analysis is to answer the focused question: Does the application of phosphoric acid, Er:YAG laser and air abrasion enamel conditioning methods previous to the oclusal sealant application in human permanent molars influence the microleakage? STUDY DESIGN: A literature research was carried out in the Pubmed Medline, Web of Science, Scopus and Cochrane databases using with the MeSH terms and keyword search strategy...
2017: Journal of Clinical Pediatric Dentistry
https://www.readbyqxmd.com/read/28414171/the-effects-of-water-on-degradation-of-the-zirconia-resin-bond
#2
C Chen, Y Chen, Z Lu, M Qian, H Xie, F R Tay
OBJECTIVES: 10-methacryloyloxydecyldihydrogenphosphate (MDP) containing primers improve bonding of yttria-stabilised tetragonal zirconia (Y-TZP) to methacrylate resins. The present study investigated the role played by water in the deterioration of MDP-mediated zirconia-resin bonds. METHODS: Grit-blasted Y-TZP plates were conditioned with two MDP primers and bonded with resin for shear bond strength (SBS) testing. Additional bonded plates were aged hydrothermally and compared with unaged Y-TZP after 24hours of water-storage or 6 months of water/acid/alkali-storage...
April 13, 2017: Journal of Dentistry
https://www.readbyqxmd.com/read/28392814/microleakage-evaluation-at-implant-abutment-interface-using-radiotracer-technique
#3
Hakimeh Siadat, Mahnaz Arshad, Hossein-Ali Mahgoli, Babak Fallahi
OBJECTIVES: Microbial leakage through the implant-abutment (I-A) interface results in bacterial colonization in two-piece implants. The aim of this study was to compare microleakage rates in three types of Replace abutments namely Snappy, GoldAdapt, and customized ceramic using radiotracing. MATERIALS AND METHODS: Three groups, one for each abutment type, of five implants and one positive and one negative control were considered (a total of 17 regular body implants)...
June 2016: Journal of Dentistry of Tehran University of Medical Sciences
https://www.readbyqxmd.com/read/28387992/influence-of-post-space-preparation-on-the-apical-leakage-of-calamus-single-cone-and-cold-lateral-condensation-obturation-techniques-a-computerized-fluid-filtration-study
#4
Zeynep Özkurt-Kayahan, Güher Barut, Zuhal Ulusoy, Hasan Oruçoğlu, Mehmet Baybora Kayahan, Ender Kazazoğlu, Faruk Haznedaroğlu
PURPOSE: Apical microleakage between the root canal and periapical tissues is considered a common cause of endodontic failure. The aim of this study was to evaluate the apical microleakage of various obturation techniques after immediate post space preparations with different drills. MATERIALS AND METHODS: One hundred twenty human single-rooted teeth were selected for this study. The coronal portions were removed to achieve a uniform length of 15 mm. All root canals were instrumented with ProTaper Next rotary files using crown-down technique...
April 7, 2017: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/28384974/a-comparative-study-of-the-quality-of-apical-seal-in-resilon-epiphany-se-following-intra-canal-irrigation-with-17-edta-10-citric-acid-and-mtad-as-final-irrigants-a-dye-leakage-study-under-vacuum
#5
Saravana Karthikeyan Balasubramanian, Vidya Saraswathi, Nidambur Vasudev Ballal, Shashi Rashmi Acharya, J Sivakumar Sampath, Sandeep Singh
INTRODUCTION: Adequate apical sealing ability of the root canal filling material is an essential requisite for a successful endodontic therapy. Various endodontic irrigants are used for the removal of smear layer before obturating with a solid core material, thereby, reducing microleakage and improving apical seal. Resilon, a synthetic material was developed as an alternative to replace the conventional gutta-percha (standard root canal filling material) and traditional sealers for the obturation of endodontically treated teeth...
February 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28377645/comparative-evaluation-of-bond-strength-and-microleakage-of-standard-and-expired-composite-at-resin-dentin-interface-an-in-vitro-study
#6
Nidhi Talreja, Shilpy Singla, N D Shashikiran
BACKGROUND: Evaluation of bond strength and microleakage caused by polymerization shrinkage provides a screening mechanism and an indication of the potential for the clinical success of composite restorations. AIM: The aim of this study was to determine the effect on shear bond strength and microleakage of standard and expired composites. MATERIALS AND METHODS: Selected specimens were etched using 37% phosphoric acid for 15 seconds and were randomly divided into four groups...
January 2017: International Journal of Clinical Pediatric Dentistry
https://www.readbyqxmd.com/read/28318391/models-of-caries-formation-around-dental-composite-restorations
#7
J L Ferracane
The main reason cited for the replacement of dental composite restorations is the recurrence of caries. Numerous models-both in vitro, with acid gels or bacterial biofilms, and in situ, with dental appliances-have been used to study caries formation around dental composites. The literature shows that many factors may affect caries formation, including marginal gap formation, gap size, the local chemical environment, the durability of the bonded interface, the extent of bacterial penetration, and the presence of mechanical loading...
April 2017: Journal of Dental Research
https://www.readbyqxmd.com/read/28298989/effects-of-different-intra-canal-medicaments-on-the-push-out-bond-strength-of-endodontic-sealers
#8
Sahar Shakouie, Shahriar Shahi, Mohammad Samiei, Amin-Salem Milani, Mohammad-Frough Reyhani, Sara Paksefat, Mahsa Eskandarinekhad, Negin Ghasemi
BACKGROUND: One of the essential properties of the root canal sealers is the adhesion to root canal dentin and their higher bond strength decreases the microleakage. The aim of the present study was to compare the effect of Different Intracanal medicaments on the push out bond strength of AH26 and MTA Fillapex sealers. MATERIAL AND METHODS: A total of 104 one-rooted extracted human teeth were divided into 4 (n=26) experimental groups. After the cleaning and shaping, the root canals were filled with Ca(OH)2, triantibiotic paste (TAP), Metapex or 2% chlorhexidine gel for two weeks...
March 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/28298983/effect-of-thermocycling-and-varying-polymerization-techniques-on-the-restorative-interface-of-class-v-cavities-restored-with-different-composite-resin-systems
#9
Jefferson-Ricardo Pereira, Lindomar-Corrêa Júnior, Marcus-Vinicius-Reis Só, Newton-Fahl Júnior
BACKGROUND: To evaluate marginal microleakage of two composite resins - a methacrylate- and a silorane-based submitted to different polymerization techniques and thermocycling. MATERIAL AND METHODS: Ninety-six class V cavities were prepared in sound human molars and restored under different polymerization and thermocycling regimens. The adhesive systems employed were Adper Scotchbond Multipurpose and Filtek P-90 for cavities restored with Z250 and P-90. The specimens were restored with Z250 or P-90, and divided into 3 subgroups with different polymerization techniques...
March 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/28275787/-comparative-study-of-microleakage-by-using-different-finished-lines-in-selective-laser-melting-metal-crowns
#10
Yan Peng, Qun Zhong, Xue-Ying Wu, Jia-Wei Weng
PURPOSE: To evaluate microleakage of SLM Co -Cr alloy metal crown with two types finished line (chamfer and shoulder), compared with conventional fabrication of Co -Cr alloy metal crowns. METHODS: Thirty healthy non-carious human molars were selected and randomly assigned to 3 groups, 10 in each. Teeth in group A and C received a chamfer finish line preparation, whereas teeth in group C received a shoulder finish line. Conventional Co -Cr alloy metal crowns were fabricated for group A when SLM metal crowns were made for group B and group C...
December 2016: Shanghai Kou Qiang Yi Xue, Shanghai Journal of Stomatology
https://www.readbyqxmd.com/read/28275786/-effects-of-repeated-firing-on-microleakage-of-selective-laser-melting-ceramic-crowns
#11
Qun Zhong, Yan Peng, Xue-Ying Wu, Jia-Wei Weng
PURPOSE: To investigate the effects of repeated firing on microleakage of selective laser melting ceramic crowns. METHODS: Fifty molars were randomly divided into 2 groups (25 teeth in each group). Teeth in group A received a chamfer finish line preparation, whereas teeth in group B received a shoulder finish line. After SLM metal crowns were fabricated, all the crowns received initial oxidation step, opaque firing, dentin firing and glaze firing, then crowns in each group were randomly divided into 5 sub-groups according to different time of clinical firings...
December 2016: Shanghai Kou Qiang Yi Xue, Shanghai Journal of Stomatology
https://www.readbyqxmd.com/read/28274050/effect-of-calcium-hydroxide-based-intracanal-medicaments-on-the-apical-sealing-ability-of-resin-based-sealer-and-guttapercha-obturated-root-canals
#12
Rithima R Sokhi, M V Sumanthini, Vanitha U Shenoy, Mohit A Bodhwani
INTRODUCTION: Calcium Hydroxide (CH) is one of the most commonly used intracanal medicaments which can be used with various vehicles. AIM: The aim of this in vitro study was to evaluate the effect of three CH based intracanal medicaments on the apical sealing ability of AH Plus - guttapercha obturation. MATERIALS AND METHODS: Crowns of 100 extracted single rooted human teeth were sectioned at the Cemento-Enamel Junction (CEJ) to a standardized length...
January 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28257259/microleakage-and-shear-bond-strength-of-composite-restorations-under-cycling-conditions
#13
R F Zanatta, M Lungova, A B Borges, Crg Torres, H-G Sydow, A Wiegand
OBJECTIVES: The aim of this study was to evaluate microleakage and shear bond strength of composite restorations under different cycling conditions. METHODS AND MATERIALS: Class V cavities were prepared in the buccal and lingual surfaces of 30 human molars (n=60). A further 60 molars were used to prepare flat enamel and dentin specimens (n=60 each). Cavities and specimens were divided into six groups and pretreated with an adhesive (self-etch/Clearfil SE Bond or etch-and-rinse/Optibond FL)...
March 2017: Operative Dentistry
https://www.readbyqxmd.com/read/28253189/microleakage-and-shear-bond-strength-of-a-new-sealant-containing-prereacted-glass-ionomer-particles
#14
Samuel N Durham, Erik J Meyers, Clifton W Bailey, Kraig S Vandewalle
A new fluoride-releasing sealant system is claimed to allow easier and faster placement while providing high bond strengths without the need for phosphoric acid etching. A study was designed to compare the microleakage and shear bond strength of a self-etching, Giomer-based sealant system with those of a traditional resin sealant. Group 1 received traditional sealant applied after use of a 35% phosphoric acid etchant; group 2 received Giomer sealant after use of a self-etching primer; and group 3 received Giomer sealant after the addition of an initial phosphoric acid etching step and placement of the primer...
March 2017: General Dentistry
https://www.readbyqxmd.com/read/28248689/microleakage-at-different-implant-abutment-connections-under-unloaded-and-loaded-conditions
#15
João Paulo da Silva-Neto, Marcel Santana Prudente, Talita Souza Dantas, Plinio Mendes Senna, Ricardo Faria Ribeiro, Flávio Domingues das Neves
PURPOSE: This study evaluated the microleakage at different implant-abutment (I-A) connections under unloaded and loaded conditions. MATERIALS AND METHODS: Forty implants, specially designed with an opening at the apex, were grouped according to the I-A and screw device: external hexagon implants with titanium (EH) or EH diamond-like carbon screws fixing the abutment; internal hexagon implants with titanium screws (IH); and Morse taper implants with solid (MT) or MT passing screws (MTps) abutments...
February 28, 2017: Implant Dentistry
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
#16
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
#17
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
#18
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
#19
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
#20
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
keyword
keyword
49264
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"