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Dental bonding

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https://www.readbyqxmd.com/read/27896210/comparison-of-the-bonding-strengths-of-second-and-third-generation-light-emitting-diode-light-curing-units
#1
Hee-Min Lee, Sang-Cheol Kim, Kyung-Hwa Kang, Na-Young Chang
OBJECTIVE: With the introduction of third-generation light-emitting diodes (LEDs) in dental practice, it is necessary to compare their bracket-bonding effects, safety, and efficacy with those of the second-generation units. METHODS: In this study, 80 extracted human premolars were randomly divided into eight groups of 10 samples each. Metal or polycrystalline ceramic brackets were bonded on the teeth using second- or third-generation LED light-curing units (LCUs), according to the manufacturers' instructions...
November 2016: Korean Journal of Orthodontics
https://www.readbyqxmd.com/read/27894525/canine-lateral-incisor-transposition-controlling-root-resorption-with-a-bone-anchored-t-loop-retraction
#2
Yu Lin Hsu, Chris H Chang, W Eugene Roberts
A 12-year-old girl presented with a Class II Division 1 malocclusion, complicated by a complete transposition of the maxillary left canine into the position normally occupied by the left lateral incisor. Dental and medical histories were noncontributory. Brackets were bonded on all maxillary teeth, from first molar to first molar, except for the left lateral incisor. Because the lateral incisor was not engaged on the archwire, the tooth was free to physiologically move out of the path of canine root movement...
December 2016: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/27892839/influence-of-adhesive-type-and-placement-technique-on-postoperative-sensitivity-in-posterior-composite-restorations
#3
Trf Costa, M Rezende, A Sakamoto, B Bittencourt, P Dalzochio, A D Loguercio, A Reis
PURPOSE: This double blind, randomized clinical trial compared the postoperative sensitivity of the placement technique (incremental and bulk fill) in posterior composite resin restorations bonded with two different adhesive strategies (self-etch and etch-and-rinse). METHODS: Posterior dental cavities of 72 participants (n=236), with a cavity depth of at least 3 mm, were randomly divided into four groups. The restorations were bonded using either the etch-and-rinse Tetric N-Bond (Ivoclar Vivadent) or the self-etch Tetric N-Bond SE (Ivoclar Vivadent)...
November 28, 2016: Operative Dentistry
https://www.readbyqxmd.com/read/27892627/withdrawn-pulp-management-for-caries-in-adults-maintaining-pulp-vitality
#4
REVIEW
Hiroshi Miyashita, Helen V Worthington, Alison Qualtrough, Alphons Plasschaert
BACKGROUND: There is a range of treatment options for the management of the pulp in extensively decayed teeth. These include direct and indirect pulp capping, pulpotomy or pulpectomy. If the tooth is symptomatic or if there are periapical bone changes, then endodontic treatment is required. However, if the tooth is asymptomatic but the caries is extensive, there is no consensus as to the best method of management. In addition, there has been a recent move towards using alternative materials and methods such as the direct or indirect placement of bonding agents and mineral trioxide aggregate...
November 28, 2016: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/27890356/does-8-methacryloxyoctyl-trimethoxy-silane-8-mots-improve-initial-bond-strength-on-lithium-disilicate-glass-ceramic
#5
Yukinori Maruo, Goro Nishigawa, Kumiko Yoshihara, Shogo Minagi, Takuya Matsumoto, Masao Irie
OBJECTIVES: Dental ceramic surfaces are modified with silane coupling agents, such as γ-methacryloxypropyl trimethoxy silane (γ-MPTS), to improve bond strength. For bonding between lithium disilicate glass ceramic and resin cement, the objective was to investigate if 8-methacryloxyoctyl trimethoxy silane (8-MOTS) could yield a similar performance as the widely used γ-MPTS. METHODS: One hundred and ten lithium disilicate glass ceramic specimens were randomly divided into 11 groups (n=10) according to pretreatment regime...
November 24, 2016: Dental Materials: Official Publication of the Academy of Dental Materials
https://www.readbyqxmd.com/read/27889605/posterior-composites-update-on-cavities-and-filling-techniques
#6
J Sabbagh, R J McConnell, M Clancy McConnell
OBJECTIVES: The aim of this paper is to examine cavity design for posterior resin composite restorations and to discuss various resin composite filling techniques. DATA: Literature with regard to cavity preparation for amalgam and resin composite restorations has been reviewed. An overview of available bulkfill resin composite systems is provided and a categorization of these systems according to their clinical application and their intended use is outlined. SOURCES: A literature search was carried out by the authors in Medline...
November 23, 2016: Journal of Dentistry
https://www.readbyqxmd.com/read/27887775/bactericidal-dental-nanocomposites-containing-1-2-3-triazolium-functionalized-poss-additive-prepared-through-thiol-ene-click-polymerization
#7
Saeed Beigi Burujeny, Hamid Yeganeh, Mohammad Atai, Hoshyar Gholami, Marzieh Sorayya
OBJECTIVE: Deterioration of mechanical strength for the dental composite containing ionic bactericidal compounds restricts the widespread utilization of this class of useful materials. This problem is originated from the reduction of the intermolecular interaction of polymeric network due to plasticization effect of absorbed water molecules penetrated between the chain segments. The main goal of this study is the synthesis of the highly efficient bactericidal additive with low hydrophilicity and consequently the least adverse effect on the final mechanical strength of the dental composite...
November 22, 2016: Dental Materials: Official Publication of the Academy of Dental Materials
https://www.readbyqxmd.com/read/27886272/can-long-term-dentine-bonding-created-in-real-life-be-forecasted-by-parameters-established-in-the-laboratory
#8
Heleine M C Rêgo, Thaís S Alves, Eduardo Bresciani, Li-Na Niu, Franklin R Tay, César R Pucci
Tooth-coloured plastic dental fillings secured by adhesives to tooth structures are widely used to fix decayed teeth. Whereas laboratory tests demonstrate rapid deterioration of the ability of the adhesives to stick to dentine, clinical studies show that these fillings are relatively durable. This discrepancy suggests that the parameters used for simulating bond degradation in the laboratory setting do not correlate well with clinical outcomes. The present study examined the long-term tensile bond strength of resin composite fillings performed in real life and under different laboratory-simulated bonding conditions to identify parameters that may be used to forecast the durability of adhesive bonds created in dentine...
November 25, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27881326/minimally-invasive-prosthetic-restoration-of-posterior-tooth-loss-with-resin-bonded-wing-retained-and-inlay-retained-fixed-dental-prostheses-fabricated-from-monolithic-zirconia-a-clinical-report-of-two-patients
#9
Wolfgang Bömicke, Jochen Karl, Peter Rammelsberg
The esthetics and biocompatibility of ceramic resin-bonded fixed dental prostheses (RBFDPs) are regarded as better than those of their metal ceramic counterparts. However, a high incidence of complications in the posterior arches of ceramic RBFDPs initiated a process of continuous and evolving design development. This clinical report describes 2 successful restorations of a missing posterior tooth with monolithic zirconia RBFDPs with 2 different retainer designs: retentively prepared adhesive wings and inlays...
October 27, 2016: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/27881319/influence-of-remaining-tooth-structure-and-restorative-material-type-on-stress-distribution-in-endodontically-treated-maxillary-premolars-a-finite-element-analysis
#10
Junxin Zhu, Qiguo Rong, Xiaoyan Wang, Xuejun Gao
STATEMENT OF PROBLEM: How tooth preparation and material type affect the stress distribution of endodontically treated teeth restored with endocrowns remains unclear. PURPOSE: The purpose of this finite element (FE) study was to determine the influence of the quantity of remaining dental tissues and material type on stress distribution in endodontically treated maxillary premolars using 3-dimensional FE analysis. MATERIAL AND METHODS: Five 3-dimensional FE models were constructed on the basis of the restorative methods used and the quantity of preserved tooth tissues: a sound maxillary premolar, an endodontically treated maxillary premolar restored with composite resin, and endodontically treated maxillary premolars restored with endocrowns with thicknesses of 1...
October 27, 2016: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/27881315/cad-cam-implant-supported-fixed-complete-dental-prosthesis-with-titanium-milled-molars-a-clinical-report
#11
Abdulaziz AlHelal, Bader AlBader, Mathew T Kattadiyil, Antoanela Garbacea, Periklis Proussaefs
Implant-supported fixed complete dental prostheses have been associated with a high implant success rate in long-term studies. However, they have also been associated with a high frequency of prosthetic complications. The most frequent and primary prosthetic complication has been the fracture or wear of the occlusal surface of acrylic resin teeth that are typically attached to a metal framework. The design of the framework in this clinical report involved the incorporation of metal occlusal surfaces for the posterior first molars to the framework...
October 27, 2016: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/27878896/bonding-performance-of-universal-adhesives-to-er-cr-ysgg-laser-irradiated-enamel
#12
Muhammet Kerim Ayar, Fatih Erdemir
Universal adhesives have been recently introduced for use as self-etch or etch-and-rinse adhesives depending on the dental substrate and clinical condition. However, their bonding effectiveness to laser-irradiated enamel is still not well-known. Thus, the aim of this study was to compare the shear bond strength (SBS) of universal adhesives (Single Bond Universal; Nova Compo-B Plus) applied to Er,Cr:YSGG laser-irradiated enamel with SBS of the same adhesives applied in self-etch and acid-etching modes, respectively...
November 23, 2016: Microscopy Research and Technique
https://www.readbyqxmd.com/read/27875051/clinical-significance-of-bis-gma-and-hema-orthodontic-resins-bonding-to-enamel-and-ceramic-materials
#13
Timothy Reichheld, Gregory Monfette, Ronald D Perry, Matthew Finkelman, Eric Gheewalla, Gerard Kugel
The advancement of new ceramic materials for dental crowns has prompted the need for improved methods of bonding orthodontic brackets to these surfaces. Currently, lithium-disilicate is the primary material being used for anterior crowns, while zirconia is the primary material being used in the posterior. The purpose of this study was to compare the shear bond strength of HEMA (Assure® Universal Bonding Resin) and bis-GMA (Assure® PLUS All Surface Bonding Resin) orthodontic bonding resins on enamel, lithium-disilicate, and zirconia materials...
November 2016: Compendium of Continuing Education in Dentistry
https://www.readbyqxmd.com/read/27874155/phase-down-of-amalgam-awareness-of-minamata-convention-among-jordanian-dentists
#14
Mohammad A Al-Rabab'ah, Mohammad A Bustani, Ameen S Khraisat, Faleh A Sawair
To assess the knowledge of Jordanian dentists toward phase down of dental amalgam as recommended by the Minamata Convention, and their training and competency in placing posterior composites.  Methods: This study was conducted through structured questionnaire interviews with randomly selected cohort of dentists in Jordan between March 2015 and June 2015. Out of 230 dentists who were invited, 196 (85.2%) agreed to participate. Dentists were asked if they know about the Minamata Convention. They were also asked about their training in placement of posterior composite...
December 2016: Saudi Medical Journal
https://www.readbyqxmd.com/read/27871482/push-out-bond-strength-of-fiber-posts-to-intraradicular-dentin-using-multimode-adhesive-system
#15
Siavash Savadi Oskoee, Mahmoud Bahari, Soodabeh Kimyai, Saeed Asgary, Katayoun Katebi
INTRODUCTION: Because there is little information about bond strength of fiber posts cemented with a universal adhesive system (UAS) with different resin cements, the aim of this study was to compare the effect of different bonding strategies in the application of UASs on push-out bond strength of fiber posts to intraradicular dentin. METHODS: Seventy-two single-rooted teeth were randomly divided into 6 groups: self-adhesive resin cement (SAC), dual-cure resin cement (DCC), UAS in the etch-and-rinse (E&R) mode and SAC (E&R + SAC), UAS in the self-etch (SE) mode and SAC (SE + SAC), UAS in the E&R mode and DCC (E&R + DCC), and UAS in the SE mode and DCC (SE + DCC)...
December 2016: Journal of Endodontics
https://www.readbyqxmd.com/read/27871481/impacts-of-contracted-endodontic-cavities-on-instrumentation-efficacy-and-biomechanical-responses-in-maxillary-molars
#16
Brent Moore, Konstantinos Verdelis, Anil Kishen, Thuan Dao, Shimon Friedman
INTRODUCTION: Recently, we reported that in mandibular molars contracted endodontic cavities (CECs) improved fracture strength compared with traditional endodontic cavities (TECs) but compromised instrumentation efficacy in distal canals. This study assessed the impacts of CECs on instrumentation efficacy and axial strain responses in maxillary molars. METHODS: Eighteen extracted intact maxillary molars were imaged with micro-computed tomographic imaging (12-μm voxel), assigned to CEC or TEC groups (n = 9/group), and accessed accordingly...
December 2016: Journal of Endodontics
https://www.readbyqxmd.com/read/27866696/equivalent-young-s-modulus-of-composite-resin-for-simulation-of-stress-during-dental-restoration
#17
Jung-Hoon Park, Nak-Sam Choi
OBJECTIVES: For shrinkage stress simulation in dental restoration, the elastic properties of composite resins should be acquired beforehand. This study proposes a formula to measure the equivalent Young's modulus of a composite resin through a calculation scheme of the shrinkage stress in dental restoration. METHODS: Two types of composite resins remarkably different in the polymerization shrinkage strain were used for experimental verification: the methacrylate-type (Clearfil AP-X) and the silorane-type (Filtek P90)...
November 17, 2016: Dental Materials: Official Publication of the Academy of Dental Materials
https://www.readbyqxmd.com/read/27862353/glutaraldehyde-collagen-cross-linking-stabilizes-resin-dentin-interfaces-and-reduces-bond-degradation
#18
Joshua Lee, Camila Sabatini
This study evaluated the stability of resin-dentin interfaces treated with glutaraldehyde-containing agents, and assessed collagen degradation in dentin matrices treated with Gluma. Microtensile bond strength (μTBS) was evaluated 24 h and 6 months after treatment with three desensitizers (Gluma Desensitizer, Gluma Desensitizer Power Gel, and MicroPrime G) and two etch-and-rinse adhesives (Comfort Bond & Desensitizer and iBond TE). Demineralized beams of human dentin were treated with water or Gluma, and the degradation of collagen in these beams was assessed by quantification of the dry mass loss and of the amount of hydroxyproline released from hydrolyzed specimens after 1 or 4 wk...
November 16, 2016: European Journal of Oral Sciences
https://www.readbyqxmd.com/read/27859654/promotion-of-resin-bonding-to-dental-zirconia-ceramic-using-plasma-deposition-of-tetramethylsilane-and-benzene
#19
Geum-Jun Han, Jae-Hoon Kim, Byeong-Hoon Cho, Kyu-Hwan Oh, Je-Jun Jeong
The aim of this study was to investigate the effects of plasma-enhanced deposition of an organosilane and benzene on resin bonding to a dental zirconia ceramic. A total of 70 zirconia specimens, which were polished before sintering, were randomly divided into five groups according to surface treatments before applying a dental adhesive (each group, n = 14): group 1, no previous treatment (control); group 2, plasma deposition with tetramethylsilane (TMS); group 3, plasma deposition with benzene; group 4, sequential plasma deposition with TMS and benzene; and group 5, a zirconia primer (Z-Prime Plus)...
November 16, 2016: European Journal of Oral Sciences
https://www.readbyqxmd.com/read/27847158/effect-of-interim-cement-application-on-bond-strength-between-resin-cements-and-dentin-immediate-and-delayed-dentin-sealing
#20
Vinícius C Brigagão, Luis F D Barreto, Kellem A S Gonçalves, Marina Amaral, Rafael P Vitti, Ana C C Neves, Laís R Silva-Concílio
STATEMENT OF PROBLEM: Despite the advances in materials and techniques, adhesion to dentin is challenging because of the complex composition of dentin's mineral, organic, and fluid phases. PURPOSE: The purpose of this in vitro study was to evaluate the bond strength of 2 different resin cements (conventional and self-adhesive) with or without previous dentin sealing and the effect of interim cement. MATERIAL AND METHODS: Forty-five molars were embedded into acrylic resin blocks and a flat dentin surface was exposed...
November 12, 2016: Journal of Prosthetic Dentistry
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