bluuebunny/crossref_metadata_2025_split huggingface dataset:
Symptom provocation in dental anxiety using cross‐phobic video stimulation
Authors: Lueken Ulrike , Hoyer Jürgen , Siegert Jens , Gloster Andrew T. , Wittchen Hans‐Ulrich 
Published: January 2011

Lueken U, Hoyer J, Siegert J, Gloster AT, Wittchen H‐U. Symptom provocation in dental anxiety using cross‐phobic video stimulation.

Eur J Oral Sci 2011; 119: 61–68. © 2011 Eur J Oral SciAlthough video stimulation has been successfully employed in dental phobia, conclusions regarding the specificity of reactions are limited. A novel, video‐based paradigm using cross‐phobic video stimulation was validated based on subjective and autonomic responses. Forty subjects were stratified according to dental anxiety as measured by the Dental Fear Survey (DFS) using a median‐split procedure (high‐DFS and low‐DFS groups). Anxiety stimuli comprised dental‐anxiety scenes and non‐dental‐anxiety control scenes (snake stimuli). Neutral scenes were tailored to each anxiety stimulus. Dental, but not snake, stimuli were rated as more anxiety provoking only in the high‐DFS group. Elevated skin‐conductance amplitudes were observed in the high‐DFS group for dental anxiety vs. neutral videos, but not for snake anxiety vs. neutral videos. State and trait anxiety and autonomic reactivity were correlated according to expectations. Using cross‐phobic video stimulation, it was demonstrated that phobogenic reactions in dental anxiety are specific to the respective stimulus material and do not generalize to other non‐dental‐anxiety control conditions. The validation of the paradigm may support and stimulate future research on the characterization of dental anxiety on different response systems, including its underlying neural substrates.
The relationship among educational achievement, career aspiration, and oral hygiene behaviours in Iranian adolescents
Authors: Dorri Mojtaba , Sheiham Aubrey , Watt Richard G. 
Published: January 2011

Dorri M, Sheiham A, Watt RG. The relationship among educational achievement, career aspiration, and oral hygiene behaviours in Iranian adolescents.

Eur J Oral Sci 2011; 119: 48–54. © 2011 Eur J Oral Sci The objectives of this study were to examine: (i) the association between toothbrushing frequency and educational achievement; (ii) the influence of social status and career aspiration on this association; and (iii) whether educational achievement and career aspiration explain the gender difference in oral hygiene behaviours in Iranian adolescents in Mashhad. The sample population was sixth‐grade adolescents in Mashhad, Iran. Participants completed a 37‐item questionnaire with questions on socio‐demographic variables, frequency of toothbrushing, educational achievement, and their career aspiration. The associations between toothbrushing frequency and other study‐outcome variables were tested using binary logistic regression. The association between toothbrushing frequency and educational achievement was significant only after adjusting for the father’s level of education and the child’s career aspiration. Toothbrushing frequency was highly significantly associated with gender, and this association remained unaltered after adjusting for educational achievement and career aspiration. Career aspiration and toothbrushing frequency were significantly associated. In conclusion, educational achievement was not an independent indicator of reported toothbrushing frequency in Iranian adolescents in Mashhad. Father’s educational level and child’s career aspiration mediated the association between toothbrushing frequency and educational achievement. Educational achievement and career aspiration did not explain the gender difference in toothbrushing behaviours of Iranian adolescents.
Influence of fluoride–detergent combinations on the visco‐elasticity of adsorbed salivary protein films
Authors: Veeregowda Deepak H. , van der Mei Henny C. , Busscher Henk J. , Sharma Prashant K. 
Published: January 2011

Veeregowda DH, van der Mei HC, Busscher HJ, Sharma PK. Influence of fluoride–detergent combinations on the visco‐elasticity of adsorbed salivary protein films. Eur J Oral Sci 2011; 119: 21–26. © 2011 Eur J Oral Sci The visco‐elasticity of salivary‐protein films is related to mouthfeel, lubrication, biofilm formation, and protection against erosion and is influenced by the adsorption of toothpaste components. The thickness and the visco‐elasticity of hydrated films (determined using a quartz crystal microbalance) of 2‐h‐old in vitro‐adsorbed salivary‐protein films were 43.5 nm and 9.4 MHz, respectively, whereas the dehydrated thickness, measured using X‐ray photoelectron spectroscopy, was 2.4 nm. Treatment with toothpaste slurries decreased the thickness of the film, depending on the fluoride–detergent combination involved. Secondary exposure to saliva resulted in a regained thickness of the film to a level similar to its original thickness; however, no association was found between the thickness of hydrated and dehydrated films, indicating differences in film structure. Treatment with stannous fluoride/sodium lauryl sulphate (SnF2/SLS)‐containing toothpaste slurries yielded a strong, immediate two‐fold increase in characteristic film frequency (fc) with respect to untreated films, indicating cross‐linking in adsorbed salivary‐protein films by Sn2+ that was absent when SLS was replaced with sodium hexametaphosphate (NaHMP). Secondary exposure to saliva of films treated with SnF2 caused a strong, six‐fold increase in fc compared with primary salivary‐protein films, regardless of whether SLS or NaHMP was the detergent. This suggests that ionized stannous is not directly available for cross‐linking in combination with highly negatively charged NaHMP, but becomes slowly available after initial treatment to cause cross‐linking during secondary exposure to saliva.
Association of matrix metalloproteinase gene polymorphism with temporomandibular joint degeneration
Authors: Planello Aline C. , Campos Maria I. G. , Meloto Carolina B. , Secolin Rodrigo , Rizatti‐Barbosa Célia M. , Line Sergio R. P. , de Souza Ana P. 
Published: January 2011

Planello AC, Campos MIG, Meloto CB, Secolin R, Rizatti‐Barbosa CM, Line SRP, de Souza AP. Association of matrix metalloproteinase gene polymorphism with temporomandibular joint degeneration.

Eur J Oral Sci 2011; 119: 1–6. © 2011 Eur J Oral Sci Temporomandibular joint (TMJ) degeneration is a frequent cause of orofacial pain. Matrix metalloproteinases (MMPs) degrade extracellular matrix components and play an important role in TMJ degeneration. We investigated the frequency of the MMP1 1G/2G polymorphism (rs1799750), the MMP3 5A/6A polymorphism (rs3025058), and the MMP9 C/T polymorphism (rs3918242) in individuals with TMJ degeneration, in order to analyze the association of polymorphisms in these genes with TMJ degeneration. The population studied comprised 117 healthy controls and 115 individuals diagnosed with TMJ degeneration upon examination of magnetic resonance imaging (MRI) and computed tomography (CT) images. Genotypes were determined using PCR restriction fragment length polymorphism (RFLP). Logistic regression analyses revealed an association between the MMP1 2G/2G genotype and degeneration; in contrast, there was no association between either the MMP3 or the MMP9 genotype and degeneration. Our results may indicate a role for the MMP1 polymorphism in TMJ degeneration.
Influence of administration method on oral health‐related quality of life assessment using the Oral Health Impact Profile
Authors: Reissmann Daniel R. , John Mike T. , Schierz Oliver 
Published: January 2011

Reissmann DR, John MT, Schierz O. Influence of administration method on oral health‐related quality of life assessment using the Oral Health Impact Profile. Eur J Oral Sci 2011; 119: 73–78. © 2011 Eur J Oral SciThe influence of the administration method used to collect oral health‐related quality of life (OHRQoL) data is largely unknown. Therefore, the aim of this study was to determine whether OHRQoL information obtained using the Oral Health Impact Profile (OHIP) differed with different methods of collection (personal interview, via telephone or as a self‐administered questionnaire). The OHRQoL was measured using the German version of the OHIP. The instrument was administered to each of 42 patients using three different methods, in a randomized order, about 1 wk apart. The test–retest reliability coefficient for the repeated OHIP assessment across the three methods of administration, and the magnitude of the variance component for administration method, were determined, characterizing the degree of OHIP score variation that is caused by this factor. Whereas OHIP mean score differences of 3.9 points were present between administration methods, the reliability coefficient of 0.90 (95% CI, 0.85–0.95) indicated that 90% of the OHIP score variation was caused by differences between subjects (and not by the administration method or measurement error). The variance component for administration method explained 0.5% of the OHIP score variation. In conclusion, the method of administration (personal interview, telephone interview or self‐administered questionnaire) did not influence substantially OHIP scores in prosthodontic patients.
Corrosion behaviour and surface analysis of a Co–Cr and two Ni–Cr dental alloys before and after simulated porcelain firing
Authors: Qiu Jing , Yu Wei‐Qiang , Zhang Fu‐Qiang , Smales Roger J. , Zhang Yi‐Lin , Lu Chun‐Hui 
Published: January 2011

Qiu J, Yu W‐Q, Zhang F‐Q, Smales RJ, Zhang Y‐L, Lu C‐H. Corrosion behaviour and surface analysis of a Co–Cr and two Ni–Cr dental alloys before and after simulated porcelain firing.

Eur J Oral Sci 2011; 119: 93–101. © 2011 Eur J Oral Sci This study evaluated the corrosion behaviour and surface properties of a commercial cobalt–chromium (Co–Cr) alloy and two nickel–chromium (Ni–Cr) alloys [beryllium (Be)‐free and Be‐containing] before and after a simulated porcelain‐firing process. Before porcelain firing, the microstructure, surface composition and hardness, electrochemical corrosion properties, and metal‐ion release of as‐cast alloy specimens were examined. After firing, similar alloy specimens were examined for the same properties. In both as‐cast and fired conditions, the Co–Cr alloy (Wirobond C) showed significantly more resistance to corrosion than the two Ni–Cr alloys. After firing, the corrosion rate of the Be‐free Ni–Cr alloy (Stellite N9) increased significantly, which corresponded to a reduction in the levels of Cr, molybdenum (Mo), and Ni in the surface oxides and to a reduction in the thickness of the surface oxide film. The corrosion properties of the Co–Cr alloy and the Be‐containing Ni–Cr alloy (ChangPing) were not significantly affected by the firing process. Porcelain firing also changed the microstructure and microhardness values of the alloys, and there were increases in the release of Co and Ni ions, especially for Ni from the Be‐free Ni–Cr alloy. Thus, the corrosion rate of the Be‐free Ni–Cr alloy increased significantly after porcelain firing, whereas the firing process had little effect on the corrosion susceptibility of the Co–Cr alloy and the Be‐containing Ni–Cr alloy.
Molar‐incisor hypomineralization and oral hygiene in 10‐ to‐12‐yr‐old Swedish children born preterm
Authors: Brogårdh‐Roth Susanne , Matsson Lars , Klingberg Gunilla 
Published: January 2011

Brogårdh‐Roth S, Matsson L, Klingberg G. Molar‐incisor hypomineralization and oral hygiene in 10‐ to‐12‐yr‐old Swedish children born preterm.

Eur J Oral Sci 2011; 119: 33–39. © 2011 Eur J Oral Sci Although preterm birth is associated with an increased risk of medical problems and impairments, there is limited knowledge of how this affects oral health. It was hypothesized that when 10–12 yr of age, children who were preterm at birth would present with a higher prevalence of molar‐incisor hypomineralization (MIH), more dental plaque, and a higher degree of gingival inflammation than full‐term control children. Eighty‐two preterm children, born between 24 and 32 wk of gestation, and 82 control children, born between 37 and 43 wk of gestation, were clinically examined for developmental defects in enamel, MIH, dental plaque, and gingival health. In addition, behaviour management problems were evaluated. Information on any aetiological factors with a potential influence on MIH and oral health was collected via questionnaires. Molar‐incisor hypomineralization was more common in preterm children than in controls (38% vs. 16%), as were enamel developmental defects (69.5% vs. 51%). Low gestational age and low birth weight increased the risk of MIH. Preterm children had more plaque, a higher degree of gingival inflammation, and more behaviour‐management problems than controls. In conclusion, oral health problems were more common in preterm children than in control children.
Endometriosis‐Associated Infertility: Double Intrauterine Insemination Improves Fecundity in Patients Positive for Antiendometrial Antibodies
Authors: Subit Michael , Gantt Pickens , Broce Mike , Seybold Dara J. , Randall Gary 
Published: January 2011

Citation  Subit M, Gantt P, Broce M, Seybold DJ, Randall G. Endometriosis‐associated infertility: double intrauterine insemination improves fecundity in patients positive for antiendometrial antibodies. Am J Reprod Immunol 2011; 66: 100–107Problem  Prospective registry study evaluating effects of endometriosis (E) and serum antiendometrial antibodies (AEA) on fecundity in intrauterine insemination (IUI) cycles.Method of study  AEA assays on 572 consecutive women receiving 969 single and 274 double IUI cycles. Logistic regression was utilized.Results  Fecundity was 11.5% (143/1243 cycles). Double IUI improved fecundity with significance achieved in certain study groups. Compared to the AEA− subgroup, all study groups except for the E+ AEA− group had significantly lower fecundity. Two study groups receiving double IUI had significantly increased fecundity, E− AEA+ (OR: 5.1, CI: 1.1–22.7, P = 0.032) and E+ AEA+ (OR: 4.1, CI: 1.2–14.0, P = 0.025) and significant predictors of pregnancy (E− AEA+, OR: 7.8, CI: 1.7–36.2, P = 0.009 and E+ AEA+, OR: 4.2, CI: 1.2–15.1, P = 0.026).Conclusion  Double IUI improves fecundity in AEA+ patients. E‐associated infertility is better diagnosed by the AEA assay than by surgery. Double IUI should be attempted prior to assisted reproductive technologies in AEA+ patients with normal fallopian tubes.
High prevalence of oral human papillomavirus infection in Fanconi’s anemia patients
Authors: de Araujo MR , Rubira‐Bullen IRF , Santos CF , Dionísio TJ , Bonfim CMS , De Marco L , Gillio‐Tos A , Merletti F 
Published: January 2011

Oral Diseases
17, 572–576Background:  Fanconi’s anemia (FA) is a rare recessive genetic disorder characterized by bone marrow failure, developmental and congenital abnormalities, which frequently evolves to aplastic anemia and neoplasias, primarily acute leukemia and head‐neck carcinomas. Risk of malignancies increases after hematopoietic stem cell transplantation (HSCT), and the role of human papillomavirus (HPV) in FA carcinogenesis have been proposed.Objective:  To investigate prevalence of oral HPV in FA patients without oral malignant lesions.Materials and methods:  After oral examination, 76 subjects without detectable oral malignant lesions were included and classified in four groups: 20 FA submitted to HSCT (I), 22 FA not submitted to HSCT (II), 18 severe aplastic anemia (SAA) submitted to HSCT (III) and 16 healthy subjects (IV). Liquid‐based cytology sampling, HPV screening by polymerase chain reaction and genotyping by reverse hybridization were performed.Results:  The HPV detection rates were: group I 35%, group II 27.3%, group III 38% and group IV 6.25%. Prevalence of high risk HPV types, mainly HPV16, was detected. Compared with control group, suggestions for increased likelihood of being HPV infected in SAA (OR = 9.55, 95% CI: 1.01–125.41) and FA patients submitted to HSCT (OR = 8.08, 0.83–72.29) emerged.Conclusion:  Patients without oral malignant lesions submitted to HSCT, have high prevalence of oral HPV. HPV screening and close follow up should be considered in these patients.
Conservation Value of Cacao Agroforestry Systems for Terrestrial Herbaceous Species in Central Sulawesi, Indonesia
Authors: Cicuzza Daniele , Kessler Michael , Clough Yann , Pitopang Ramadhanil , Leitner Daniela , Tjitrosoedirdjo Sri S. 
Published: January 2011

ABSTRACTTropical secondary forest and agroforestry systems have been identified as important refuges for the local species diversity of birds and other animal groups, but little is known about the importance of these systems for terrestrial herbs. In particular, few studies report how the conversion from tropical forest to technified cacao plantation affects the species richness and the community structure of herbs. We conducted surveys in 43 cacao plantations along the border of the Lore Lindu National Park in Central Sulawesi, ranging from agroforests to technified cacao, categorizing the plantations as rustic cacao, planted shade cacao, and technified cacao. We recorded 91 herb species. Of the 74 species determined to species level, 21 were also found in natural forests, while 53 were recorded only in agricultural habitats. Araceae was the most forest‐dependent plant family while Asteraceae included the highest number of nonforest species. Overall, the presence of forest species was confined to moderately intensively managed rustic and planted shaded plantations. Distance from the forest, which has been identified as a crucial parameter for the diversity and composition of other taxa in cacao agroforests, only played a minimal role for herbs. Our study suggests that native forest herbs maybe more vulnerable to forest conversion than animal groups. The intensification of cacao plantation management increases the presence of weedy species to the detriment of native forest species.
An In Situ Leaf and Branch Warming Experiment in the Amazon
Authors: Doughty Christopher E. 
Published: January 2011

ABSTRACTLeaves and branches of mature trees, lianas, and gap species were warmed in an Amazonian forest for 4 mo to observe the effect of warming on photosynthesis, stomatal conductance, and transpiration. Electric resistance heaters increased air temperatures near the leaves by approximately 2°C. Sunlit leaf temperatures increased by 2–3°C on average, but during some periods leaf temperatures increased by >5°C. Maximum photosynthesis (Amax) decreased significantly in the warmed leaves vs. the control leaves over the 13‐wk study period with an average decrease in Amax of 1.4 μmol/m2s (19% decrease from a mean Amax of 7.2 μmol/m2s) when measured at 30°C and there were no signs of acclimation to higher temperatures within existing leaves. The decline in Amax was likely due to irreversible temperature damage caused by very high leaf temperatures and not due to Ci limitation of carboxylation. Warming had a larger negative impact on Amax in canopy level tree species than other tested functional groups such as lianas or gap species. Transpiration did not significantly increase in the warmed leaves compared with the control group. This study indicates that increased temperatures due to global warming could potentially decrease future tropical forest carbon uptake by a significant amount.Abstract in Portuguese is available at http://www.blackwell‐synergy.com/loi/btp.
A COMPARATIVE STUDY OF THE ENRICHMENT MEDIA FOR RECOVERY AND DETECTION OF SALMONELLA ENTERITIDIS IN KOREAN FOOD SYSTEM
Authors: CHANG YUN HEE , LEE SANG MO 
Published: January 2011

Abstract  This study was performed to establish standard methods and media for detecting S. Enteritidis in Korean style foods. For the preliminary experiment, the enrichment procedures for the recovery of acid or heat injured S. Enteritidis was compared. In the mixed culture system, Salmonella Enteritidis ATCC 13076, Shigella sonnei ATCC 9290, Staphylococcus aureus ATCC 25923, Listeria monocytogenes ATCC 19111, Escherichia coli ATCC 25922 were used. S. Enteritidis in food system were evaluated by using 5 different preenrichment media (TSB: Tryptic Soy Broth, LB: Lactose Broth, BPW: Buffered Peptone Water, SB: Selenite Broth, SCB: Selenite Cystine Broth) and 2 different enrichment media (TT: Tetrathionate Broth, RV: Rappaport and Vassiliadis).TSB was the most effective medium to detect acid and heat injured S. Enteritidis after 6 h incubation, but SB and SCB were also effective after 24 h incubation. For the recovery of heat injured S. Enteritidis at 65C, 5 pre‐enrichment media did not show significant differences (P<0.05). But after 6 h incubation, TSB and BPW were more effective than other media for the recovery of heat injured S. Enteritidis at 60C. BPW, TSB and TT were most effective for detecting S. Enteritidis in Kimbob (rice roll with lover), salad, Japchae (Chinese noodle with vegetable), mussel, pan‐fried fish fillet, broiler carcasses, ground pork and Jokbal (boiled pork hock). TSB and TT were most effective for milk and eggs, and SCB was also effective for broiler carcasses.
Flow measurement with multi‐instrumentation in a tidal‐affected river
Authors: Kimura N. , Liu Wen‐Cheng , Wu Chin H. , Bechle Adam J. , Chen Wei‐Bo , Huang Wei‐Cher 
Published: January 2011

AbstractFlow measurements in a tidal‐affected river provide important information of cyclic flow pattern characteristics in temporal and spatial variations. Reliability and accuracy of measured flow data can provide for numerical model calibration and verification. In the present study, we measured tidally affected river flow in the Danshui River of northern Taiwan during the 2008 summer and fall. The measured flow data, produced by both state of the art and conventional instruments including particle tracking velocimetry (PTV), acoustic Doppler profiler (ADP), horizontal acoustic Doppler current profiler (H‐ADCP) and Price‐type current metre (PCM) were compared and correlated during several tidal cycles. The mean flows by ADP were similar to that by PCM and highly correlated with those by PTV and H‐ADCP. Index velocity rating between ADP and H‐ADCP separately computed during the flood and ebb tides shows good correlation for the ebb tide and poor correlation for the flood tide due to subsurface maximum velocity in the middle‐ to near‐bottom layers.
Survival in extreme environments – on the current knowledge of adaptations in tardigrades
Authors: Møbjerg N. , Halberg K. A. , Jørgensen A. , Persson D. , Bjørn M. , Ramløv H. , Kristensen R. M. 
Published: January 2011

AbstractTardigrades are microscopic animals found worldwide in aquatic as well as terrestrial ecosystems. They belong to the invertebrate superclade Ecdysozoa, as do the two major invertebrate model organisms: Caenorhabditis elegans and Drosophila melanogaster. We present a brief description of the tardigrades and highlight species that are currently used as models for physiological and molecular investigations. Tardigrades are uniquely adapted to a range of environmental extremes. Cryptobiosis, currently referred to as a reversible ametabolic state induced by e.g. desiccation, is common especially among limno‐terrestrial species. It has been shown that the entry and exit of cryptobiosis may involve synthesis of bioprotectants in the form of selective carbohydrates and proteins as well as high levels of antioxidant enzymes and other free radical scavengers. However, at present a general scheme of mechanisms explaining this phenomenon is lacking. Importantly, recent research has shown that tardigrades even in their active states may be extremely tolerant to environmental stress, handling extreme levels of ionizing radiation, large fluctuation in external salinity and avoiding freezing by supercooling to below −20 °C, presumably relying on efficient DNA repair mechanisms and osmoregulation. This review summarizes the current knowledge on adaptations found among tardigrades, and presents new data on tardigrade cell numbers and osmoregulation.