WTS database

Title	Pub Year	Author Sort descending	SearchLink
Acute invasive pulmonary aspergillosis, shortly after occupational exposure to polluted muddy water, in a previously healthy subject	2015	Department of Respiratory Medicine, Vallabhbhai Patel Chest Institute, University of Delhi, Delhi, Italia.; Department of Respiratory Medicine, Vallabhbhai Patel Chest Institute, University of Delhi, Delhi, Italia.; Department of Radiology and Imaging, Sa	Read more...
Source Type Print(0) Ref Type Journal Article Periodical, Full Jornal brasileiro de pneumologia : publicacao oficial da Sociedade Brasileira de Pneumologia e Tisilogia Periodical, Abbrev. J.Bras.Pneumol. Pub Date Free Form Sep-Oct Volume 41 Issue 5 Start Page 473 Other Pages 477 Notes LR: 20151120; JID: 101222274; 0 (Antifungal Agents); 304NUG5GF4 (Itraconazole); OID: NLM: PMC4635095; 2015/02/23 [received]; 2015/07/28 [accepted]; ppublish Place of Publication Brazil ISSN/ISBN 1806-3756; 1806-3713 Accession Number PMID: 26578140 Language eng; por SubFile Case Reports; Journal Article; IM DOI 10.1590/S1806-37132015000000108 [doi] Output Language Unknown(0) PMID 26578140 Abstract Invasive pulmonary aspergillosis (IPA) predominantly occurs in severely neutropenic immunocompromised subjects. The occurrence of acute IPA after brief but massive exposure to Aspergillus conidia in previously healthy subjects has been documented, although only six such cases have been reported. The diagnosis was delayed in all six of the affected patients, five of whom died. We report the case of a 50-year-old HIV-negative male, a water pipeline maintenance worker, who presented with acute-onset dyspnea and fever one day after working for 2 h in a deep pit containing polluted, muddy water. Over a one-month period, his general condition deteriorated markedly, despite antibiotic therapy. Imaging showed bilateral diffuse nodules with cavitation, some of which were surrounded by ground-glass opacity suggestive of a halo sign (a hallmark of IPA). Cultures (of sputum/bronchial aspirate samples) and serology were positive for Aspergillus fumigatus. After being started on itraconazole, the patient improved. We conclude that massive exposure to Aspergillus conidia can lead to acute IPA in immunocompetent subjects. Descriptors Links Book Title Database Publisher Data Source Authors Pilaniya,V., Gera,K., Gothi,R., Shah,A. Original/Translated Title URL Date of Electronic PMCID PMC4635095 Editors
Factors affecting shear bond strength of composite resin to fluorosed human enamel	2000	Department of Restorative Dental Sciences, King Saud University College of Dentistry, P.O. Box 60169, Riyadh, 11545, Saudi Arabia.	Read more...
Source Type Print(0) Ref Type Journal Article Periodical, Full Operative dentistry Periodical, Abbrev. Oper.Dent. Pub Date Free Form May-Jun Volume 25 Issue 3 Start Page 216 Other Pages 222 Notes LR: 20071115; JID: 7605679; 0 (Brilliant Enamel); 0 (Composite Resins); ppublish Place of Publication United States ISSN/ISBN 0361-7734; 0361-7734 Accession Number PMID: 11203819 Language eng SubFile Journal Article; D DOI Output Language Unknown(0) PMID 11203819 Abstract The aim of this work was to determine the effects of age, severity of fluorosis, and etching time on the shear bond strength of direct composite resin to human enamel. A total of 117 teeth, freshly extracted from patients in areas of Saudi Arabia endemic for dental fluorosis, were classified according to age ( 0.05). However, the bond was significantly stronger in teeth from patients < 40 years old than from those 40+ years old. Furthermore, at age < 40 years, shear bond strength was significantly higher in teeth etched for 120 seconds than those etched for 60 seconds (p < 0.05), but this was not the case in teeth from the older patients. In teeth with TFI = 1-3, the mode of bond failure was predominantly mixed, but at TFI = 4-6, the bond failure was mostly cohesive in enamel at all ages and etching times. It is, therefore, concluded that both age and etching time affect the shear bond strength of composite resin to fluorosed human enamel. Descriptors Acid Etching, Dental/methods, Adhesiveness, Adult, Age Factors, Analysis of Variance, Composite Resins/chemistry, Dental Bonding, Dental Enamel/ultrastructure, Dental Stress Analysis/instrumentation, Fluorosis, Dental/classification/pathology, Humans, Microscopy, Electron, Scanning, Saudi Arabia, Statistics as Topic, Stress, Mechanical, Surface Properties, Time Factors Links Book Title Database Publisher Data Source Authors Ateyah,N., Akpata,E. Original/Translated Title URL Date of Electronic PMCID Editors
Enhancement of bonding to enamel and dentin prepared by Er,Cr:YSGG laser	2009	Department of Restorative Dentistry and Biomaterials, The University of Texas, Dental Branch at Houston, Houston, TX 77030, USA. ali.obeidi@uth.tmc.edu	Read more...
Source Type Print(0) Ref Type Journal Article Periodical, Full Lasers in surgery and medicine Periodical, Abbrev. Lasers Surg.Med. Pub Date Free Form Aug Volume 41 Issue 6 Start Page 454 Other Pages 462 Notes CI: Copyright 2009; JID: 8007168; ppublish Place of Publication United States ISSN/ISBN 1096-9101; 0196-8092 Accession Number PMID: 19588530 Language eng SubFile Journal Article; Research Support, Non-U.S. Gov't; IM DOI 10.1002/lsm.20790 [doi] Output Language Unknown(0) PMID 19588530 Abstract BACKGROUND AND OBJECTIVE: Erbium lasers are potential tools to remove caries and dental hard tissue but bond strengths of composites to those preparations are reported to be lower than conventional methods. The purpose of this study was to evaluate the effect of mechanical excavation and/or chemical alteration on bond strength of composites to laser irradiated enamel and dentin. MATERIALS AND METHODS: Seventy-two premolars were ground to obtain flat enamel (E, n = 36) or dentin (D, n = 36) surfaces in both buccal and lingual cusps, divided into: LaserExcavation (LEx), LaserNo-excavation (LNex), and Bur (B) groups. The laser groups were irradiated for 10 seconds by Er,Cr:YSGG laser [4.5 W, 60% air, 80% water (enamel) 3 W, 60% air, 70% water (dentin)]. Irradiated surfaces in the excavation groups (Ex) were then mechanically smoothed with a dental excavator, prepared surfaces were then etched (37% H(3)PO(4)) for 20 or 40 seconds (enamel) and 15 or 30 seconds (dentin), washed (20 seconds), adhesive was applied(Single Bond Plus), and light cured (20 seconds). A composite cylinder (Filtek Supreme Plus) formed, placed and light cured (40 seconds). The specimens were stored (37 degrees C,48 hours), shear bond tested (1 mm/minute), and statistically analyzed (P < 0.05). RESULTS: Mixed-model ANOVA showed significant differences between enamel (P = 0.0091) and between dentin groups (P = 0.0035). Tukey/Kramer showed mean shear bond strength (SBS+/-SE) of EB40 (27.01+/-2.38 MPa) was significantly higher than ELNoExc20 (14.39+/-2.5 MPa) and ELExc40 (14.90+/-2.28 MPa). Also DB30 (17.57+/- 1.67 MPa) and DLExc30 (18.6+/-1.74 MPa) were significantly higher than DLNoExc15 (9.56+/-1.86 MPa). CONCLUSION: Increasing the etching time up to 40 seconds or excavation of the laser prepared surface (but not the combination) may increase the bond strength to the level of conventional methods in enamel but excavation has a greater influence in dentin. Also the combination of both methods [excavation+longer etching time (30 seconds)] exhibit significantly better results in dentin.Mode of failure study showed mechanical excavation in both enamel and dentin can significantly reduce the cohesive failure in tooth structure. Descriptors Adhesiveness/radiation effects, Dental Bonding, Dental Cavity Preparation/methods, Dental Enamel/pathology/radiation effects, Dental Etching, Dentin/pathology/radiation effects, Humans, Lasers, Solid-State, Shear Strength, Tissue Culture Techniques Links Book Title Database Publisher Wiley-Liss, Inc Data Source Authors Obeidi,A., McCracken,M. S., Liu,P. R., Litaker,M. S., Beck,P., Rahemtulla,F. Original/Translated Title URL Date of Electronic PMCID Editors
Resin bond strength and micromorphology of human teeth prepared with an Erbium:YAG laser	2004	Department of Restorative Dentistry and Biomaterials, University of Texas Dental Branch at Houston, 6516 M.D. Anderson Blvd., Suite 493, Houston, Texas 77030-3402, USA. Cynthia.Trajtenberg@uth.tmc.edu	Read more...
Source Type Print(0) Ref Type Journal Article Periodical, Full American Journal of Dentistry Periodical, Abbrev. Am.J.Dent. Pub Date Free Form Oct Volume 17 Issue 5 Start Page 331 Other Pages 336 Notes LR: 20131121; JID: 8806701; 0 (Composite Resins); 0 (Dentin-Bonding Agents); 0 (Filtek Z250); 0 (Resin Cements); 0 (Scotchbond Multi-Purpose Plus); 77B218D3YE (Erbium); ppublish Place of Publication United States ISSN/ISBN 0894-8275; 0894-8275 Accession Number PMID: 15575443 Language eng SubFile Comparative Study; Journal Article; Research Support, Non-U.S. Gov't; D DOI Output Language Unknown(0) PMID 15575443 Abstract PURPOSE: To evaluate the in vitro effect of the Er:YAG laser and high-speed rotary instrumentation on the bond strength of resin composite to human enamel and dentin, and determine which conditioner, either phosphoric acid or a self-etching primer, resulted in higher bond strengths with either of the surface treatments. METHODS: 48 third molars were used. Dentin and enamel specimens were sectioned and polished with 600-grit SiC paper and treated either with carbide bur or an Erbium:YAG laser and treated with one of three different conditions, acid-etch/bonding agent (Scotchbond Multi-Purpose Plus), no etching and same bonding agent, and an experimental self-etching primer (EXL 547). After storage for 48 hours at 37 degrees C and 100% humidity, specimens were prepared in an hourglass shape for microtensile bond test (ca. 1 mm2) and debonded in tension. Areas were measured and bond strengths were calculated for each specimen. Failure modes, micromorphology of surface treatments and bonding interfaces of representative specimens from acid-etched and self-etched groups were analyzed with scanning electron microscopy. Means were compared using three-way analysis of variance, and Scheffe post-hoc test (P < 0.05) was used to determine differences among surface treatments, tooth substrate and conditioners. RESULTS: Dentin prepared with the carbide bur and treated with phosphoric acid followed by the application of Scotchbond Multi-Purpose had the highest bond strengths (35.7 MPa). Enamel and dentin prepared with the Er:YAG laser had the highest bond strengths when the surfaces were acid-etched followed by Scotchbond Multi-Purpose (25.8-21.1 MPa). Carbide bur exhibited higher bond strengths than laser with the use of the experimental self-etching primer but laser showed higher bond strengths than the bur with the use of Scotchbond Multi-Purpose and no etching. The predominant failure mode of most of the treatment conditions was partially adhesive between the bonding resin and enamel or dentin, and partially cohesive within the bonding resin. SEM analysis revealed the absence of a smear layer on laser-treated teeth when compared to untreated control and bur-cut teeth. Descriptors Acid Etching, Dental/methods, Analysis of Variance, Composite Resins, Dental Bonding, Dental Cavity Preparation/methods, Dental Enamel/ultrastructure, Dental High-Speed Technique, Dental Stress Analysis, Dentin/ultrastructure, Dentin-Bonding Agents, Erbium, Humans, Lasers, Materials Testing, Molar, Resin Cements, Smear Layer, Statistics, Nonparametric, Tensile Strength Links Book Title Database Publisher Data Source Authors Trajtenberg,C. P., Pereira,P. N., Powers,J. M. Original/Translated Title URL Date of Electronic PMCID Editors
Effect of nonsurgical periodontal therapy verses oral hygiene instructions on type 2 diabetes subjects with chronic periodontitis: a randomised clinical trial	2014	Department of Restorative Dentistry, Faculty of Dentistry, University of Malaya, 50603 Kuala Lumpur, Malaysia. rathna@um.edu.my.	Read more...
Source Type Print(0) Ref Type Journal Article Periodical, Full BMC oral health Periodical, Abbrev. BMC Oral Health. Pub Date Free Form 25-Jun Volume 14 Issue Start Page 79 Other Pages 6831-14-79 Notes LR: 20150805; ClinicalTrials.gov/NCT01951547; JID: 101088684; 0 (Anti-Infective Agents, Local); 0 (Hemoglobin A, Glycosylated); 0 (Mouthwashes); 9007-41-4 (C-Reactive Protein); R4KO0DY52L (Chlorhexidine); OID: NLM: PMC4082680; 2014/03/12 [received]; 2014/ Place of Publication England ISSN/ISBN 1472-6831; 1472-6831 Accession Number PMID: 24965218 Language eng SubFile Comparative Study; Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't; D; IM DOI 10.1186/1472-6831-14-79 [doi] Output Language Unknown(0) PMID 24965218 Abstract BACKGROUND: 40 subjects with type 2 diabetes and moderate to severe CP were randomly distributed to groups receiving either NSPT or OHI. Periodontal parameters, glycosylated haemoglobin (HbA1c) and high-sensitivity C-reactive protein (hs-CRP) were evaluated at baseline, 2- and 3-months intervals. METHODS: 40 subjects with type 2 diabetes and moderate to severe CP were randomly distributed to groups receiving either NSPT or OHI. Periodontal parameters, glycosylated haemoglobin (HbA1c) and high-sensitivity C-reactive protein (hs-CRP) were evaluated at baseline, 2- and 3-months intervals. RESULTS: 15 subjects from NSPT group and 17 from OHI group completed the study. The difference in plaque index (PI) between NSPT and OHI groups were significant at 2 months recall (p = 0.013). There was no significant difference between NSPT and OHI group for all other clinical periodontal parameters, HbA1c and CRP levels. At 3 months post-therapy, periodontal parameters improved significantly in both groups with sites with probing pocket depth (PPD) /= 50% reduction in PPD showed significant reductions of HbA1c and hs-CRP levels (p = 0.004 and p = 0.012). CONCLUSION: NSPT significantly reduced PI at 2 months post-therapy as compared to OHI. Both NSPT and OHI demonstrated improvements in other clinical parameters as well as HbA1c and CRP levels. TRIAL REGISTRATION: ClinicalTrials.gov: NCT01951547. Descriptors Links Book Title Database Publisher Data Source Authors Raman,R.P., Taiyeb-Ali,T.B., Chan,S.P., Chinna,K., Vaithilingam,R.D. Original/Translated Title URL Date of Electronic 20140625 PMCID PMC4082680 Editors
Evaluation of microtensile and tensile bond strength tests determining effects of erbium, chromium: yttrium-scandium-gallium-garnet laser pulse frequency on resin-enamel bonding	2016	Department of Restorative Dentistry, Faculty of Dentsitry, Karadeniz Technical University, Trabzon, Turkey.; Department of Restorative Dentistry, Faculty of Dentsitry, Biruni University, Istanbul, Turkey.; Department of Restorative Dentistry, Faculty of D	Read more...
Source Type Print(0) Ref Type Journal Article Periodical, Full Nigerian journal of clinical practice Periodical, Abbrev. Niger.J.Clin.Pract. Pub Date Free Form Sep-Oct Volume 19 Issue 5 Start Page 585 Other Pages 590 Notes JID: 101150032; ppublish Place of Publication India ISSN/ISBN 1119-3077 Accession Number PMID: 27538544 Language eng SubFile Journal Article; IM DOI 10.4103/1119-3077.188702 [doi] Output Language Unknown(0) PMID 27538544 Abstract OBJECTIVES: The aim of the present study was to compare two different bond strength test methods (tensile and microtensile) in investing the influence of erbium, chromium: yttrium-scandium-gallium-garnet (Er, Cr: YSGG) laser pulse frequency on resin-enamel bonding. MATERIALS AND METHODS: One-hundred and twenty-five bovine incisors were used in the present study. Two test methods were used: Tensile bond strength (TBS; n = 20) and micro-TBS (muTBS; n = 5). Those two groups were further split into three subgroups according to Er, Cr: YSGG laser frequency (20, 35, and 50 Hz). Following adhesive procedures, microhybrid composite was placed in a custom-made bonding jig for TBS testing and incrementally for muTBS testing. TBS and muTBS tests were carried out using a universal testing machine and a microtensile tester, respectively. RESULTS: Analysis of TBS results showed that means were not significantly different. For muTBS, the Laser-50 Hz group showed the highest bond strength (P Descriptors Links Book Title Database Publisher Data Source Authors Yildirim,T., Ayar,M.K., Yesilyurt,C., Kilic,S. Original/Translated Title URL Date of Electronic PMCID Editors
Bond strength of adhesive systems to Er,Cr:YSGG laser-irradiated dentin	2011	Department of Restorative Dentistry, Piracicaba Dental School, Campinas State University, SP, Brazil.	Read more...
Source Type Print(0) Ref Type Journal Article Periodical, Full Photomedicine and laser surgery Periodical, Abbrev. Photomed.Laser Surg. Pub Date Free Form Nov Volume 29 Issue 11 Start Page 747 Other Pages 752 Notes LR: 20141120; JID: 101222340; 0 (Dentin-Bonding Agents); 2011/09/16 [aheadofprint]; ppublish Place of Publication United States ISSN/ISBN 1557-8550; 1549-5418 Accession Number PMID: 21923283 Language eng SubFile Journal Article; Research Support, Non-U.S. Gov't; IM DOI 10.1089/pho.2010.2983 [doi] Output Language Unknown(0) PMID 21923283 Abstract OBJECTIVE: The purpose of this study was to evaluate the effects of Er,Cr:YSGG laser irradiation and different adhesive procedures on bond strength of two bonding agents to dentin. BACKGROUND DATA: Studies have shown that laser-irradiated dentinal tissue yields lower bond strengths than does nonirradiated dentin. In this study, different treatment methods of laser irradiating dentin were studied to enhance the bond strength of bonding agents to nonirradiated dentin. METHODS: Third molars were wet ground with SiC until the occlusal flat dentin surface was exposed, and the teeth were randomly assigned to six groups (n=5). A two-step self-etching primer (Clearfil SE Bond, G1) and a two-step etch-and-rinse adhesive (Single Bond Plus, G2) were applied to the nonirradiated dentin surface according to manufacturer's instructions, as control groups. In G3 and G4, the same adhesives were applied after Er,Cr:YSGG laser irradiation, whereas in G5 and G6 adhesives were applied after Er,Cr:YSGG laser irradiation, phosphoric acid etching, and NaOCl deproteinization of etched dentin. The Er,Cr:YSGG laser worked at 2.78??m and the repetition rate was fixed at 20?Hz. Composite blocks were built on bonded surfaces and the teeth were stored for 24?h at 37?C. Restored teeth were vertically and serially sectioned to obtain bonded specimens for the bond strength test. Data were analyzed by two-way ANOVA and Tukey test (?=5%). RESULTS: Laser irradiation reduced bond strengths for the two adhesives, regardless of acid etching and deproteinization of dentin post-irradiation (p Descriptors Links Book Title Database Publisher Data Source Authors Carvalho,A.O., Reis,A.F., de Oliveira,M.T., de Freitas,P.C., Aranha,A.C., Eduardo Cde,P., Giannini,M. Original/Translated Title URL Date of Electronic 20110916 PMCID Editors
Shear bond strength of a sealant to contaminated-enamel surface: influence of erbium : yttrium-aluminum-garnet laser pretreatment	2008	Department of Restorative Dentistry, Ribeirao Preto School of Dentistry, University of Sao Paolo (USP), Sao Paulo, Brazil.	Read more...
Source Type Print(0) Ref Type Journal Article Periodical, Full Journal of esthetic and restorative dentistry : official publication of the American Academy of Esthetic Dentistry ...[et al.] Periodical, Abbrev. J.Esthet.Restor.Dent. Pub Date Free Form Volume 20 Issue 6 Start Page 386 Other Pages 92; discussion 393-4 Notes JID: 101096515; 0 (Pit and Fissure Sealants); ppublish Place of Publication Canada ISSN/ISBN 1496-4155; 1496-4155 Accession Number PMID: 19120785 Language eng SubFile Comparative Study; Journal Article; Research Support, Non-U.S. Gov't; D DOI 10.1111/j.1708-8240.2008.00214.x [doi] Output Language Unknown(0) PMID 19120785 Abstract BACKGROUND: Salivary contamination is one of the factors that can disturb the sealing process and interfere in the longevity of pit and fissure sealants. Erbium : yttrium-aluminum-garnet (Er : YAG) laser could influence the bond strength of enamel and increase the acid resistance. PURPOSE: To evaluate the influence of Er : YAG laser on the shear bond strength of a sealant to a salivary contaminated enamel surface. METHODS: Twenty-four third molars had the roots sectioned 2 mm coronal to the cementoenamel junction. The crowns were mesiodistally sectioned providing 48 halves that were embedded in polyester resin. Enamel was flattened and a 2-mm diameter bonding area was demarcated. Specimens were randomly assigned to two groups according to the superficial pretreatment-37% phosphoric acid (A) and Er : YAG laser (80 mJ/2 Hz) + phosphoric acid (L), which were subdivided into two groups (N = 12), without salivary contamination (C) and with salivary contamination (SC). To contaminate the specimens, 0.25 mL of human fresh saliva was applied for 20 seconds and then dried. Fluroshield sealant was applied in all specimens. After storage, shear bond strength of samples were tested in a universal testing machine. RESULTS: Means in MPa were: AC-14.61 (+/-2.52); ASC-6.66 (+/-2.34); LC-11.91 (+/-1.34); and LSC-2.22 (+/-0.66). Statistical analysis revealed that surfaces without salivary contamination and with acid treatment had the highest mean (p < 0.05). The group with salivary contamination treated by Er : YAG laser followed by phosphoric acid application presented the lowest bond values (p < 0.05). CONCLUSIONS: The phosphoric acid etching under dry condition yielded better bonding performance. Er : YAG laser was not able to increase the effectiveness of conventional acid etching of enamel in the bond of sealants in both dry and wet conditions. CLINICAL SIGNIFICANCE: Under the conditions of this study, the conventional etching protocol (phosphoric acid without salivary contamination) is still preferable to laser-conditioning enamel surface prior to sealant application. Descriptors Acid Etching, Dental/methods, Dental Bonding/instrumentation/methods, Dental Enamel/drug effects/radiation effects, Dental Etching/instrumentation/methods, Humans, Lasers, Solid-State, Pit and Fissure Sealants, Random Allocation, Saliva/radiation effects, Shear Strength, Surface Properties Links Book Title Database Publisher Data Source Authors Lepri,T. P., Souza-Gabriel,A. E., Atoui,J. A., Palma-Dibb,R. G., Pecora,J. D., Milori Corona,S. A. Original/Translated Title URL Date of Electronic PMCID Editors
Influence of Nd:YAG laser on the bond strength of self-etching and conventional adhesive systems to dental hard tissues	2013	Department of Restorative Dentistry, Sao Jose dos Campos School of Dentistry, UNESP- Univ Estadual Paulista, Sao Paulo, Brazil.	Read more...
Source Type Print(0) Ref Type Journal Article Periodical, Full Operative dentistry Periodical, Abbrev. Oper.Dent. Pub Date Free Form Jul-Aug Volume 38 Issue 4 Start Page 447 Other Pages 455 Notes JID: 7605679; 0 (Composite Resins); 0 (Dental Materials); 0 (Dentin-Bonding Agents); 0 (Filtek Z250); 0 (Phosphoric Acids); 0 (Xeno III); 0 (single bond); 059QF0KO0R (Water); 454I75YXY0 (Bisphenol A-Glycidyl Methacrylate); E4GA8884NN (phosphoric acid); 20 Place of Publication United States ISSN/ISBN 1559-2863; 0361-7734 Accession Number PMID: 23215546 Language eng SubFile Comparative Study; Journal Article; D DOI 10.2341/11-383-L [doi] Output Language Unknown(0) PMID 23215546 Abstract PURPOSE: The aim of this study was to investigate the influence of Nd:YAG laser on the shear bond strength to enamel and dentin of total and self-etch adhesives when the laser was applied over the adhesives, before they were photopolymerized, in an attempt to create a new bonding layer by dentin-adhesive melting. MATERIAL AND METHODS: One-hundred twenty bovine incisors were ground to obtain flat surfaces. Specimens were divided into two substrate groups (n=60): substrate E (enamel) and substrate D (dentin). Each substrate group was subdivided into four groups (n=15), according to the surface treatment accomplished: X (Xeno III self-etching adhesive, control), XL (Xeno III + laser Nd:YAG irradiation at 140 mJ/10 Hz for 60 seconds + photopolymerization, experimental), S (acid etching + Single Bond conventional adhesive, Control), and SL (acid etching + Single Bond + laser Nd:YAG at 140 mJ/10 Hz for 60 seconds + photopolymerization, experimental). The bonding area was delimited with 3-mm-diameter adhesive tape for the bonding procedures. Cylinders of composite were fabricated on the bonding area using a Teflon matrix. The teeth were stored in water at 37 degrees C/48 h and submitted to shear testing at a crosshead speed of 0.5 mm/min in a universal testing machine. Results were analyzed with three-way analysis of variance (ANOVA; substrate, adhesive, and treatment) and Tukey tests (alpha=0.05). ANOVA revealed significant differences for the substrate, adhesive system, and type of treatment: lased or unlased (p Descriptors Links Book Title Database Publisher Data Source Authors Marimoto,A.K., Cunha,L.A., Yui,K.C., Huhtala,M.F., Barcellos,D.C., Prakki,A., Goncalves,S.E. Original/Translated Title URL Date of Electronic 20121205 PMCID Editors
Shear bond strength of composite bonded to erbium:yttrium-aluminum-garnet laser-prepared dentin	2009	Department of Restorative Dentistry, School of Dentistry, Hacettepe University, Sihhiye, 06100, Ankara, Turkey. sgurgan@hacettepe.edu.tr	Read more...
Source Type Print(0) Ref Type Journal Article Periodical, Full Lasers in medical science Periodical, Abbrev. Lasers Med.Sci. Pub Date Free Form Jan Volume 24 Issue 1 Start Page 117 Other Pages 122 Notes LR: 20141120; JID: 8611515; 0 (Acrylic Resins); 0 (Adhesives); 0 (Composite Dental Resin); 0 (Composite Resins); 0 (Polyurethanes); 2007/06/08 [received]; 2007/10/22 [accepted]; 2007/12/12 [aheadofprint]; ppublish Place of Publication England ISSN/ISBN 0268-8921; 0268-8921 Accession Number PMID: 18074164 Language eng SubFile Journal Article; IM DOI 10.1007/s10103-007-0532-0 [doi] Output Language Unknown(0) PMID 18074164 Abstract The purpose of this study was to evaluate the dentin bond strength to resin composite following erbium:yttrium-aluminum-garnet (Er:YAG) laser preparation using different adhesive systems. Seventy dentin specimens prepared from human molar teeth were randomly assigned to seven groups of ten. The first five groups were prepared with an Er:YAG laser 2940 nm at the manufacturer's recommended settings and (1) acid etched, and etch-and-rinse adhesive Excite was applied; (2) Excite was applied; (3) two-step self-etching adhesive AdheSE was applied; (4) laser etched (120 mJ/10 Hz), and Excite was applied; (5) laser etched, and AdheSE was applied. The last two groups were added as controls (prepared with a diamond bur): (6) acid etched, and Excite was applied; (7) AdheSE was applied. Nanohybrid composite cylinders 4 mm x 2 mm were bonded to the dentin surfaces. After the specimens had been stored in distilled water and had undergone thermocycling, the shear bond strength was tested and the data were analyzed statistically. The Duncan multiple comparison test showed that specimens prepared with a diamond bur and with acid and Excite applied showed the highest mean bond strength (13.01 +/- 2.09 MPa), followed by those prepared with Er:YAG and with AdheSE applied (11.5 +/- 3.59 MPa) and those prepared with a diamond bur and with AdheSE applied (10.75 +/- 1.95 MPa), but there were no significant differences among them (P > 0.05). Er:YAG-prepared specimens, with acid, Excite (3.28 +/- 0.95 MPa) and specimens that were laser etched and with AdheSE applied (3.37 +/- 0.63 MPa) showed the lowest mean values for bond strength (P < 0.05). The results suggested that dentin surfaces prepared with Er:YAG laser may provide comparable composite resin bond strengths depending on the adhesives used. Descriptors Acrylic Resins, Adhesives, Composite Resins, Dental Bonding, Dentin/radiation effects, Humans, In Vitro Techniques, Lasers, Solid-State, Molar, Polyurethanes Links Book Title Database Publisher Data Source Authors Gurgan,S., Kiremitci,A., Cakir,F. Y., Yazici,E., Gorucu,J., Gutknecht,N. Original/Translated Title URL Date of Electronic 20071212 PMCID Editors

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