WTS database

Title	Pub Year	Author Sort descending	SearchLink
Health effects associated with waterpipe smoking	2015	Department of Pathology and Laboratory Medicine, American University of Beirut, Beirut, Lebanon.; Department of Internal Medicine, American University of Beirut, Beirut, Lebanon Boston University School of Medicine, Boston, Massachusetts, USA.; Department	Read more...
Source Type Print(0) Ref Type Journal Article Periodical, Full Tobacco control Periodical, Abbrev. Tob.Control Pub Date Free Form Mar Volume 24 Suppl 1 Issue Start Page i31 Other Pages i43 Notes LR: 20150326; CI: Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://group.bmj.com/group/rights-licensing/permissions.; JID: 9209612; 059QF0KO0R (Water); OID: NLM: PMC434579 Place of Publication England ISSN/ISBN 1468-3318; 0964-4563 Accession Number PMID: 25661414 Language eng SubFile Journal Article; Review; IM DOI 10.1136/tobaccocontrol-2014-051908 [doi] Output Language Unknown(0) PMID 25661414 Abstract OBJECTIVE: It is widely held that waterpipe smoking (WPS) is not associated with health hazards. However, several studies have documented the uptake of several toxicants and carcinogens during WPS that is strongly associated with harmful health effects. This paper reviews the literature on the health effects of WPS. DATA SOURCES: Three databases-PubMed, MEDLINE and EMBASE-were searched until August 2014 for the acute and long-term health effects of WPS using the terms 'waterpipe' and its synonyms (hookah, shisha, goza, narghileh, arghileh and hubble-bubble) in various spellings. STUDY SELECTION: We included original clinical studies, case reports and systematic reviews and focused on clinical human studies. approximately 10% of the identified studies met the selection criteria. DATA EXTRACTION: Data were abstracted by all three authors and summarised into tables. Abstracted data included study type, results and methodological limitations and were analysed jointly by all three authors. DATA SYNTHESIS: WPS acutely leads to increased heart rate, blood pressure, impaired pulmonary function and carbon monoxide intoxication. Chronic bronchitis, emphysema and coronary artery disease are serious complications of long-term use. Lung, gastric and oesophageal cancer are associated with WPS as well as periodontal disease, obstetrical complications, osteoporosis and mental health problems. CONCLUSIONS: Contrary to the widely held misconception, WPS is associated with a variety of adverse short-term and long-term health effects that should reinforce the need for stronger regulation. In addition, this review highlights the limitations of the published work, which is mostly cross-sectional or retrospective. Prospective studies should be undertaken to assess the full spectrum of health effects of WPS, particularly in view of its growing popularity and attractiveness to youth. Descriptors Links Book Title Database Publisher Data Source Authors El-Zaatari,Z.M., Chami,H.A., Zaatari,G.S. Original/Translated Title URL Date of Electronic 20150206 PMCID PMC4345795 Editors
Pathological findings in spontaneous pneumothorax specimens: does the incidence of unexpected clinically significant findings justify routine histological examination?	2015	Department of Pathology and Laboratory Medicine, University of Vermont/Fletcher Allen Health Care, Burlington, VT, USA.	Read more...
Source Type Print(0) Ref Type Journal Article Periodical, Full Histopathology Periodical, Abbrev. Histopathology Pub Date Free Form Apr Volume 66 Issue 5 Start Page 675 Other Pages 684 Notes CI: (c) 2014; JID: 7704136; OTO: NOTNLM; 2014/06/30 [received]; 2014/08/07 [accepted]; 2014/12/22 [aheadofprint]; ppublish Place of Publication England ISSN/ISBN 1365-2559; 0309-0167 Accession Number PMID: 25234592 Language eng SubFile Journal Article; Research Support, Non-U.S. Gov't; IM DOI 10.1111/his.12523 [doi] Output Language Unknown(0) PMID 25234592 Abstract AIMS: The utility of routine histological examination of clinically primary spontaneous pneumothorax (SPTX) specimens has been questioned. In this retrospective study, we aimed to assess the clinical significance of unexpected SPTX histopathological findings, to determine whether such findings justify routine histological examination of SPTX specimens. METHODS AND RESULTS: Records and slides from all SPTX resections at our institution from 2002-2012 were reviewed. Clinically significant unexpected histological findings were identified in 8.3% of 72 patients, including: one patient with lung cancer, one with endometriosis, one with Birt-Hogg-Dube (BHD) syndrome, and three with 'bong lung'. Detection of BHD syndrome has the potential to avert advanced renal carcinoma by identifying individuals who should undergo periodic abdominal CT screening. The cost of treating a case of advanced renal carcinoma far exceeds that of histologically examining all SPTX specimens received in a 10-year period at our institution. CONCLUSIONS: Gross examination alone is an inadequate evaluation of SPTX specimens. This is the first study to demonstrate that routine histological examination of SPTX specimens is justified, in that it discloses unexpected findings that are clinically significant and impact on patient management. Descriptors Links Book Title Database Publisher John Wiley & Sons Ltd Data Source Authors Sauter,J.L., Butnor,K.J. Original/Translated Title URL Date of Electronic 20141222 PMCID Editors
The calcineurin inhibitor cyclosporin A exhibits synergism with antifungals against Candida parapsilosis species complex	2014	Department of Pathology and Legal Medicine, School of Medicine, Postgraduate Program in Medical Microbiology and Specialized Medical Mycology Center, Federal University of Ceara, Fortaleza, Ceara, Brazil Department of Clinical Medicine, School of Medicine	Read more...
Source Type Print(0) Ref Type Journal Article Periodical, Full Journal of medical microbiology Periodical, Abbrev. J.Med.Microbiol. Pub Date Free Form Jul Volume 63 Issue Pt 7 Start Page 936 Other Pages 944 Notes LR: 20141120; CI: (c) 2014; JID: 0224131; 0 (Antifungal Agents); 0 (Echinocandins); 0 (Pyrimidines); 0 (Triazoles); 7XU7A7DROE (Amphotericin B); 83HN0GTJ6D (Cyclosporine); F0XDI6ZL63 (caspofungin); JFU09I87TR (Voriconazole); 2014/04/10 [aheadofprint]; ppu Place of Publication England ISSN/ISBN 1473-5644; 0022-2615 Accession Number PMID: 24722799 Language eng SubFile Journal Article; Research Support, Non-U.S. Gov't; IM DOI 10.1099/jmm.0.073478-0 [doi] Output Language Unknown(0) PMID 24722799 Abstract Candida parapsilosis complex comprises three closely related species, C. parapsilosis sensu stricto, Candida metapsilosis and Candida orthopsilosis. In the last decade, antifungal resistance to azoles and caspofungin among C. parapsilosis sensu lato strains has been considered a matter of concern worldwide. In the present study, we evaluated the synergistic potential of antifungals and the calcineurin inhibitor cyclosporin A (Cys) against planktonic and biofilms of C. parapsilosis complex from clinical sources. Susceptibility assays with amphotericin, fluconazole, voriconazole, caspofungin and Cys were performed by microdilution in accordance with Clinical and Laboratory Standards Institute guidelines. Synergy testing against planktonic cells of C. parapsilosis sensu lato strains was assessed by the chequerboard method. Combinations formed by antifungals with Cys were evaluated against mature biofilms in microtitre plates. No differences in the antifungal susceptibility pattern among species were observed, but C. parapsilosis sensu stricto strains were more susceptible to Cys than C. orthopsilosis and C. metapsilosis. Synergism between antifungals and Cys was observed in C. parapsilosis sensu lato strains. Combinations formed by antifungals and Cys were able to prevent biofilm formation and showed an inhibitory effect against mature biofilms of C. parapsilosis sensu stricto, C. metapsilosis and C. orthopsilosis. These results strengthen the potential of calcineurin inhibition as a promising approach to enhance the efficiency of antifungal drugs. Descriptors Links Book Title Database Publisher The Authors Data Source Authors Cordeiro Rde,A., Macedo Rde,B., Teixeira,C.E., Marques,F.J., Bandeira Tde,J., Moreira,J.L., Brilhante,R.S., Rocha,M.F., Sidrim,J.J. Original/Translated Title URL Date of Electronic 20140410 PMCID Editors
Non-touch fittings in hospitals: a possible source of Pseudomonas aeruginosa and Legionella spp	2001	Department of Pathology and Microbiology, Infection Control Team, Krankenhaus der Barmherzigen Schwestern Ried im Innkreis, A-4910 Ried im Innkreis, Austria. milo.halabi@bhs.at	Read more...
Source Type Print(0) Ref Type Journal Article Periodical, Full The Journal of hospital infection Periodical, Abbrev. J.Hosp.Infect. Pub Date Free Form Oct Volume 49 Issue 2 Start Page 117 Other Pages 121 Notes LR: 20091103; CI: Copyright 2001; JID: 8007166; CIN: J Hosp Infect. 2003 Jan;53(1):77. PMID: 12495690; ppublish Place of Publication England ISSN/ISBN 0195-6701; 0195-6701 Accession Number PMID: 11567556 Language eng SubFile Journal Article; IM DOI 10.1053/jhin.2001.1060 [doi] Output Language Unknown(0) PMID 11567556 Abstract Non-touch fittings are gradually becoming very common in the bathrooms and toilets of public facilities and restaurants. Hospitals and other healthcare facilities have recently started to install these types of water taps to lower water consumption, thus saving costs, and to prevent healthcare workers from touching the tap, thus promoting hygiene. This study analysed the bacteriological water quality of 38 non-touch water taps in different settings in a 450-bed secondary-care hospital in Upper Austria. Two different tap types were installed: 23 taps were without temperature selection and 15 were with temperature selection (cold and warm). A membrane filtration method was used, and the authors screened for both indicator organisms and Pseudomonas aeruginosa in 100 ml water samples. In 10 non-touch taps without temperature selection, the authors also screened for Legionella spp. in 500 ml water samples. Seventy four percent of the taps without temperature selection and 7% of the taps with temperature selection showed contamination with P. aeruginosa (P<0.001). None of the taps showed contamination with indicator organisms. Detailed analysis of the source of contamination revealed that the magnetic valve and the outlet itself were heavily contaminated, whereas the junction from the central pipe system was free of contamination. All 10 analysed taps showed contamination with Legionella spp. It was concluded that the local contamination of non-touch fittings is a result of the low amount of water that flows through the outlet, the low water pressure and the column of water, which is 'still-standing' and has a temperature of about 35 degrees C, thus providing nearly ideal growth conditions for P. aeruginosa. Additionally, the presence of materials such as rubber, PVC, etc. in the fittings enhances the adhesion of P. aeruginosa and thus the production of biofilms. In conclusion, the authors wish to encourage infection control teams to evaluate the use of non-touch fittings in hospitals, especially when they are installed in risk areas. Descriptors Austria, Cross Infection/microbiology/prevention & control, Equipment Design, Equipment and Supplies, Hospital/microbiology, Humans, Legionella/isolation & purification, Pseudomonas aeruginosa/isolation & purification, Water Microbiology Links Book Title Database Publisher The Hospital Infection Society Data Source Authors Halabi,M., Wiesholzer-Pittl,M., Schoberl,J., Mittermayer,H. Original/Translated Title URL Date of Electronic PMCID Editors
Inflammation and intestinal metaplasia of the distal esophagus are associated with alterations in the microbiome	2009	Department of Pathology, New York University School of Medicine, New York, New York, USA.	Read more...
Source Type Print(0) Ref Type Journal Article Periodical, Full Gastroenterology Periodical, Abbrev. Gastroenterology Pub Date Free Form Aug Volume 137 Issue 2 Start Page 588 Other Pages 597 Notes LR: 20150201; GR: R01 AI063477/AI/NIAID NIH HHS/United States; GR: R01 AI063477-05/AI/NIAID NIH HHS/United States; GR: R01 CA097946/CA/NCI NIH HHS/United States; GR: R01 CA097946-04/CA/NCI NIH HHS/United States; GR: R01AI063477/AI/NIAID NIH HHS/United Sta Place of Publication United States ISSN/ISBN 1528-0012; 0016-5085 Accession Number PMID: 19394334 Language eng SubFile Comparative Study; Journal Article; Research Support, N.I.H., Extramural; Research Support, U.S. Gov't, Non-P.H.S.; AIM; IM DOI 10.1053/j.gastro.2009.04.046 [doi] Output Language Unknown(0) PMID 19394334 Abstract BACKGROUND & AIMS: Gastroesophageal reflux causes inflammation and intestinal metaplasia and its downstream sequelum adenocarcinoma in the distal esophagus. The incidence of esophageal adenocarcinoma has increased approximately 6-fold in the United States since the 1970s, accompanied with a significant increase in the prevalence of gastroesophageal reflux disease (GERD). Despite extensive epidemiologic study, the cause for GERD and the unexpected increases remain unexplainable. Microbes are among the environmental factors that may contribute to the etiology of GERD, but very little research has been done on the esophageal microbiome, particularly in its relation to GERD. This is the first comprehensive reported correlation between a change in the esophageal microbiome and esophageal diseases. METHODS: Biopsy samples of the distal esophagus were collected from 34 patients. Host phenotypes were histologically defined as normal, esophagitis, or Barrett's esophagus (intestinal metaplasia). Microbiomes from the biopsy samples were analyzed by bacterial 16S ribosomal RNA gene survey and classified into types using unsupervised cluster analysis and phenotype-guided analyses. Independence between host phenotypes and microbiome types were analyzed by Fisher exact test. RESULTS: Esophageal microbiomes can be classified into 2 types. The type I microbiome was dominated by the genus Streptococcus and concentrated in the phenotypically normal esophagus. Conversely, the type II microbiome contained a greater proportion of gram-negative anaerobes/microaerophiles and primarily correlated with esophagitis (odds ratio, 15.4) and Barrett's esophagus (odds ratio, 16.5). CONCLUSIONS: In the human distal esophagus, inflammation and intestinal metaplasia are associated with global alteration of the microbiome. These findings raise the issue of a possible role for dysbiosis in the pathogenesis of reflux-related disorders. Descriptors Adult, Analysis of Variance, Barrett Esophagus/genetics/microbiology/pathology, Biopsy, Needle, Case-Control Studies, Confidence Intervals, Esophagitis/genetics/microbiology/pathology, Female, Gastroesophageal Reflux/microbiology/pathology/physiopathology, Humans, Immunohistochemistry, Intestinal Mucosa/microbiology/pathology, Intestinal Neoplasms/microbiology/pathology, Male, Metagenome/genetics/physiology, Metaplasia/pathology, Middle Aged, Odds Ratio, Precancerous Conditions/pathology, Streptococcus/genetics/pathogenicity, Tissue Culture Techniques Links Book Title Database Publisher Data Source Authors Yang,L., Lu,X., Nossa,C. W., Francois,F., Peek,R. M., Pei,Z. Original/Translated Title URL Date of Electronic 20090423 PMCID PMC2963147 Editors
Microbiome and potential targets for chemoprevention of esophageal adenocarcinoma	2016	Department of Pathology, New York University School of Medicine, New York, NY, USA.; Department of Pathology, New York University School of Medicine, New York, NY, USA.; Department of Veterans Affairs New York Harbor Healthcare System, New York, NY, USA;	Read more...
Source Type Print(0) Ref Type Journal Article Periodical, Full Seminars in oncology Periodical, Abbrev. Semin.Oncol. Pub Date Free Form Feb Volume 43 Issue 1 Start Page 86 Other Pages 96 Notes LR: 20160315; CI: Published by Elsevier Inc.; GR: R01 CA159036/CA/NCI NIH HHS/United States; GR: R01CA159036/CA/NCI NIH HHS/United States; GR: R03 CA159414/CA/NCI NIH HHS/United States; GR: R03CA159414/CA/NCI NIH HHS/United States; GR: U01 CA182370/CA/NCI Place of Publication United States ISSN/ISBN 1532-8708; 0093-7754 Accession Number PMID: 26970127 Language eng SubFile Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't; Review; IM DOI 10.1053/j.seminoncol.2015.09.005 [doi] Output Language Unknown(0) PMID 26970127 Abstract Esophageal cancer is one of the deadliest cancers, with a dismal prognosis. It is increasingly recognized that esophageal cancer is a heterogeneous disease. It can be subdivided into two distinct groups: squamous cell carcinoma and adenocarcinoma, based on histological appearance. In the Western world, the incidence of squamous cell carcinoma was considerably higher than esophageal adenocarcinoma (EA) until the 1990s when, due to a dramatic increase, the incidence of EA surpassed that of squamous cell carcinoma. EA typically follows a well-established stepwise evolution from chronic inflammation due to reflux esophagitis (RE) that progresses to metaplasia (Barrett's esophagus [BE]) to dysplasia, which often culminates in EA. The pathophysiology of EA is complex and involves diverse factors, including gastroesophageal reflux, gastric acid secretion, dysfunction of the antireflux barrier, gastric emptying disturbances, and abnormalities in esophageal defense mechanisms. The current understanding of the etiology of EA is mainly derived from epidemiological studies of risk factors such as cigarette smoking, obesity, gastroesophageal reflux disorders (GERD), and low fruit and vegetable consumption. Numerous studies have been done, but the factors that drive the dynamic increase in the incidence of EA remain elusive. The advent of widespread antibiotic use occurred in the 1950s, preceding the surge of EA. Based on this temporal sequence, it has been hypothesized that antibiotics alter the microbiome to which the esophagus is exposed in patients who have GERD and that chronic exposure to this abnormal microbiome (ie, changes in species diversity or abundance) accounts for the increase in EA. If changes in the proposed factors alter the stepwise progression (RE-BE-dysplasia-EA), they may represent potential targets for chemoprevention. New discoveries will help improve our understanding of the biology and pathogenesis of these cancers, and aid in finding novel therapeutic targets. Descriptors Links Book Title Database Publisher Data Source Authors Neto,A.G., Whitaker,A., Pei,Z. Original/Translated Title URL Date of Electronic 20150907 PMCID PMC4789168 Editors
Growth-supporting activity for Legionella pneumophila in tap water cultures and implication of hartmannellid amoebae as growth factors	1988	Department of Pathology, School of Medicine, University of Pittsburgh, Pennsylvania 15261.	Read more...
Source Type Print(0) Ref Type Journal Article Periodical, Full Applied and Environmental Microbiology Periodical, Abbrev. Appl.Environ.Microbiol. Pub Date Free Form Nov Volume 54 Issue 11 Start Page 2677 Other Pages 2682 Notes LR: 20131001; JID: 7605801; OID: NLM: PMC204355; ppublish Place of Publication UNITED STATES ISSN/ISBN 0099-2240; 0099-2240 Accession Number PMID: 3214153 Language eng SubFile Journal Article; IM DOI Output Language Unknown(0) PMID 3214153 Abstract Photosynthetic cyanobacteria, heterotrophic bacteria, free-living amoebae, and ciliated protozoa may support growth of Legionella pneumophila. Studies were done with two tap water cultures (WS1 and WS2) containing L. pneumophila and associated microbiota to characterize growth-supporting activity and assess the relative importance of the microbiota in supporting multiplication of L. pneumophila. The water cultures were incubated in the dark at 35 degrees C. The growth-supporting factor(s) was separated from each culture by filtration through 1-micron-pore-size membrane filters. The retentate was then suspended in sterile tap water. Multiplication of L. pneumophila occurred when both the retentate suspension and the filtrate from either culture were inoculated into sterile tap water. L. pneumophila did not multiply in tap water inoculated with only the filtrate, even though filtration did not reduce the concentration of L. pneumophila or heterotrophic bacteria in either culture. Growth-supporting activity of the retentate suspension from WS1 was inactivated at 60 degrees C but unaffected at 0, 25, and 45 degrees C after 30-min incubations. Filtration experiments indicated that the growth-supporting factor(s) in WS1 was 2 to 5 micron in diameter. Ciliated protozoa were not detected in either culture. Hartmannellid amoebae were conclusively demonstrated in WS2 but not in WS1. L. pneumophila multiplied in tap water inoculated with the amoebae (10(3)/ml) and the 1-micron filtrate of WS2. No multiplication occurred in tap water inoculated with the filtrate only. Growth-supporting activity for L. pneumophila may be present in plumbing systems; hartmannellid amoebae appear to be important determinants of multiplication of L. pneumophila in some tap water cultures. Descriptors Animals, Hartmannella/growth & development, Legionella/growth & development, Temperature, Water Microbiology, Water Supply Links Book Title Database Publisher Data Source Authors Wadowsky,R. M., Butler,L. J., Cook,M. K., Verma,S. M., Paul,M. A., Fields,B. S., Keleti,G., Sykora,J. L., Yee,R. B. Original/Translated Title URL Date of Electronic PMCID PMC204355 Editors
Self-etch bonding agent beneath sealant: Bond strength for laser-irradiated enamel	2013	Department of Pediatric Clinics, Preventive and Community Dentistry, Dental School of Ribeirao Preto, University of Sao Paulo, Ribeirao Preto, SP, 14040-904, Brazil.; Department of Pediatric Clinics, Preventive and Community Dentistry, Dental School of Ri	Read more...
Source Type Print(0) Ref Type Journal Article Periodical, Full European journal of dentistry Periodical, Abbrev. Eur.J.Dent. Pub Date Free Form Jul Volume 7 Issue 3 Start Page 289 Other Pages 295 Notes LR: 20140616; JID: 101303672; OID: NLM: PMC4053617; OTO: NOTNLM; ppublish Place of Publication India ISSN/ISBN 1305-7456 Accession Number PMID: 24926208 Language eng SubFile Journal Article DOI 10.4103/1305-7456.115412 [doi] Output Language Unknown(0) PMID 24926208 Abstract OBJECTIVES: This study evaluated the in vitro shear bond strength (SBS) of a resin-based pit-and-fissure sealant (Fluroshield [F], Dentsply/Caulk) associated with either an etch-and-rinse (Adper Single Bond 2 [SB], 3M/ESPE) or a two-step self-etch adhesive system (Adper SE Plus [SE], 3M/ESPE) on Er: YAG laser-irradiated enamel. MATERIALS AND METHODS: Seventeen sound third molar crowns were embedded in acrylic resin, and the mesial-distal enamel surfaces were flattened. The enamel sites were irradiated with a 2.94-mum wavelength Er: YAG laser (120 mJ, 4 Hz, noncontact mode/17 mm, 20 s). The specimens were randomly assigned to three groups according to the bonding technique: I - 37% phosphoric acid etching + SB + F; II - SE + F and III - F applied to acid-etched enamel, without an intermediate layer of bonding agent. In all of the groups, a 3-mm diameter enamel-bonding site was demarcated and the sealant cylinders were bonded. After 24 hours in distilled water, the shear bond strength was tested at a crosshead speed of 0.5 mm/minute. The data were analyzed by one-way ANOVA and Tukey's test. The debonded specimens were examined with a stereomicroscope to assess the failure modes. RESULTS: The mean SBS values in MPa were I = 6.39 (+/-1.44); II = 9.50 (+/-2.79); and III = 5.26 (+/-1.82). No statistically significant differences were observed between groups I and III; SE/F presented a significantly higher SBS than that of the other groups (P = 0.001). With regard to the failure mode, groups I (65%) and II (75%) presented adhesive failures, while group III showed 50% adhesive failure. Cohesive failure did not occur. CONCLUSION: The application of the two-step self-etch bonding agent (Adper SE Plus) beneath the resin pit-and-fissure sealant placement resulted in a significantly higher bond strength for the Er:YAG laser-irradiated enamel. Descriptors Links Book Title Database Publisher Data Source Authors Borsatto,M.C., Giuntini Jde,L., Contente,M.M., Gomes-Silva,J.M., Torres,C.P., Galo,R. Original/Translated Title URL Date of Electronic PMCID PMC4053617 Editors
Comparative evaluation of shear bond strength of composite resin bonded to acid etched or Nd:Yag lased enamel	2011	Department of Pediatric Dentistry, Govt. Dental College and Hospital, Mumbai, India. mm_goswami@yahoo.com	Read more...
Source Type Print(0) Ref Type Journal Article Periodical, Full Journal of the Indian Society of Pedodontics and Preventive Dentistry Periodical, Abbrev. J.Indian Soc.Pedod.Prev.Dent. Pub Date Free Form Apr-Jun Volume 29 Issue 2 Start Page 140 Other Pages 143 Notes LR: 20131121; JID: 8710631; 0 (Composite Resins); 0 (Dental Materials); 0 (Phosphoric Acids); 0 (Z100 composite resin); 0 (single bond); 059QF0KO0R (Water); 454I75YXY0 (Bisphenol A-Glycidyl Methacrylate); 7631-86-9 (Silicon Dioxide); C6V6S92N3C (Zirconium Place of Publication India ISSN/ISBN 1998-3905; 0970-4388 Accession Number PMID: 21911953 Language eng SubFile Comparative Study; Journal Article; D DOI 10.4103/0970-4388.84687 [doi] Output Language Unknown(0) PMID 21911953 Abstract AIMS: In vitro evaluation of the shear bond strength of composite resin bonded to enamel which is pretreated using acid etchant or pulsed Nd:YAG. Qualitative morphological changes in enamel surfaces were observed under a scanning electron microscope (SEM). MATERIALS AND METHODS: 60 extracted human teeth were divided in two groups of 30 each (Groups A and B). In Group A, prepared surface of enamel was etched using 35% phosphoric acid (Scotchbond, 3M). In Group B, enamel was surface treated by a surgical Nd:YAG laser beam (Medilas 4060 Fibertom) at 0.8 W, 10 Hz, for 10 s with 80 mJ/pulse power. Bonding agent (single bond dental adhesive, 3M) was applied over the test areas on 20 samples of Groups A and B each, and light cured. Composite resin (Z 100, 3M) was applied onto the test areas as a 3 mm diameter cylinder, and light cured. The samples were tested for shear bond strength. Remaining 10 samples from each group were observed under SEM for morphological changes. RESULTS: The mean shear bond strength was 20.00 MPa (+/- 1.93) and 13.28 MPa (+/-1.97) for Group A and B, respectively. The difference in mean values was statistically significant between Groups A and B (P Descriptors Links Book Title Database Publisher Data Source Authors Goswami,M., Singh,A. Original/Translated Title URL Date of Electronic PMCID Editors
Resin adhesion on the primary ground enamel. (2) Influence of the etched enamel	1990	Department of Pediatric Dentistry, Nagasaki University School of Dentistry.	Read more...
Source Type Print(0) Ref Type Journal Article Periodical, Full Shoni shikagaku zasshi.The Japanese journal of pedodontics Periodical, Abbrev. Shoni Shikagaku Zasshi Pub Date Free Form Volume 28 Issue 4 Start Page 907 Other Pages 917 Notes LR: 20131121; JID: 0136612; 0 (Composite Resins); 0 (Dental Cements); 0 (Phosphoric Acids); 0 (Resin Cements); 454I75YXY0 (Bisphenol A-Glycidyl Methacrylate); 90881-69-9 (Scotchbond); E4GA8884NN (phosphoric acid); ppublish Place of Publication JAPAN ISSN/ISBN 0583-1199; 0583-1199 Accession Number PMID: 2151977 Language jpn SubFile English Abstract; Journal Article; D DOI Output Language Unknown(0) PMID 2151977 Abstract The purpose of this study was to investigate the influence of the etching times on the adhesion of the resin on the primary ground enamel. Fifty extracted and frozen bovine mandibular primary incisors were used. The etchant used in this study was 37% phospholic acid gel and the etching times were 0, 10, 20, 30 and 60 seconds. All of the specimens were washed with an air water spray after etching. The bonding agent and composite resin used in this study were Dual Cured Scotch Bond and Silux (3M Co.). Shear bond strengths on the ground enamel were measured. After the shear bond strength test, all the test surfaces of the enamel and resin specimens were observed using the SEM. The results of this study were compared with the previous results using Photo Bond and Photo Clearifil A (Kurarey Co.). 1) The etching time which showed the highest bond strength was 20 seconds (76.77 +/- 12.99 Mpa). 2) When the enamel was etched with all of the etching times, the bond strength were significantly higher than that of the enamel without etching (p less than 0.01). 3) In the etched groups, there was no significant difference among the bond strengths with all of the etching times categories. 4) In the etched groups, the longer the etching times, the lower the standard deviations were. 5) On the enamel specimens after the shear bond strength test, the frequency of the resin tags fractured inside of the enamel prisms was higher in the group which showed a lower bond strength. 6) For the same etching times, significant difference between the bond strengths of Silux and those of Photo Clearfil A was obtained only with the 20 seconds of etching time (p less than 0.01) and the bond strength of Silux was higher. Descriptors Acid Etching, Dental, Animals, Bisphenol A-Glycidyl Methacrylate, Cattle, Composite Resins, Dental Bonding, Dental Cements, Dental Enamel/ultrastructure, Microscopy, Electron, Scanning, Phosphoric Acids, Resin Cements, Tensile Strength, Time Factors Links Book Title Database Publisher Data Source Authors Hosoya,Y., Nakamura,N., Ando,K., Matsui,T., Kashima,C., Goto,G. Original/Translated Title URL Date of Electronic PMCID Editors

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