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European Journal of Oral Sciences

Avani Jain, Baranya Shrikrishna Suprabha, Ramya Shenoy, Arathi Rao
The aim of this study was to investigate whether there is an association between temperament characteristics of preschool children, dental anxiety, and their dental behaviour. A total of 100 children, aged 3-5 yr, who were attending their initial dental visit accompanied by a parent, were included in this cross-sectional study. Dental anxiety of children was measured using the Facial Image Scale. The behaviour of children during the initial oral examination and oral prophylaxis was assessed using Frankl's behaviour rating scale...
February 6, 2019: European Journal of Oral Sciences
David S Brennan, Manasi M Mittinty, Lisa Jamieson
Psychosocial factors may explain variance in health beyond conventional indicators, such as behaviours. This study aimed to examine changes in health associated with perceived stress, social support, and self-efficacy, controlling for sociodemographic characteristics and health behaviour. A random sample of 45- to 54-yr-old subjects was surveyed in 2004-2005, with a follow-up 2 yr later. The outcomes were self-reported changes in oral and general health. Explanatory variables included stress, social support, and perceived health competence with covariates of income, gender, dentition status, toothbrushing, and smoking...
February 2, 2019: European Journal of Oral Sciences
Christopher Riedel, Michael Wendler, Renan Belli, Anselm Petschelt, Ulrich Lohbauer
Rapid Layer Technology (RLT) uses computer-aided design/computer-aided manufacturing (CAD/CAM) to manufacture a veneer layer that is adhesively bonded to the zirconia framework, avoiding firing steps during the fabrication process and thus preventing build-up of residual stresses. This work studied, using sliding contact fatigue, the in vitro lifetime of restorations produced using RLT compared with restorations produced using conventional veneering techniques. Zirconia copings were veneered with a conventional hand-layering method (VM9) using a fast (n = 16) or a slow (n = 16) cooling protocol, or with RLT...
January 16, 2019: European Journal of Oral Sciences
Mario V Vettore, Saousan F H Ahmad, Carolina Machuca, Humberto Fontanini
This study explored the relationships between sex, socio-economic status, social support, social network, dental clinical status, dental pain, oral health-related quality of life (OHRQoL), and self-rated oral health (SROH) in adolescents. A cross-sectional study involving 542 adolescents, aged 12-14 yr, was conducted in Dourados, Brazil, to collect dental clinical measures (dental caries, missing teeth, and dental trauma), as well as measures of social support, social network, dental pain, OHRQoL, and SROH...
January 16, 2019: European Journal of Oral Sciences
Noel Ye Naung, Warwick Duncan, Rohana De Silva, Dawn Coates
Harvesting, expanding, and re-implanting osteogenic mesenchymal stem cells (MSCs) avoids the donor-site morbidity associated with autogenous grafting from bone marrow. Mesenchymal stem cells sourced from the palatal periosteum could be an alternative to isolation of such cells using bone marrow aspiration procedures. For safe use in human therapy, MSCs should be expanded in culture medium that is free from animal or human-derived serum. In this study we localized, quantified, and characterized MSCs from palatal periosteum cultured in serum-free, xeno-free Essential 8 medium...
January 7, 2019: European Journal of Oral Sciences
Magdalena A Osiewicz, Arie Werner, Franciscus J M Roeters, Cornelis J Kleverlaan
Little is known about the wear rate of enamel and dentin opposing resin composite following restoration of the occlusal surface in patients with tooth wear. Hence, the aim of this in vitro study was to evaluate the wear of enamel and dentin surfaces when opposing each of three resin composites in a two-body and three-body wear test. The two-body and three-body wear of dentin, enamel, and three resin composites (Clearfil AP-X, Filtek Z250, and Filtek Supreme) opposing four antagonists (stainless steel and three resin composites) were evaluated using the ACTA wear machine...
January 4, 2019: European Journal of Oral Sciences
Nebu Philip, H M H N Bandara, Shaneen J Leishman, Laurence J Walsh
Dark-colored fruit berries are a rich source of polyphenols that could provide innovative bioactive molecules as natural weapons against dental caries. High-quality extracts of cranberry, blueberry, and strawberry, and a combination of the three berry extracts (Orophenol), were used to treat 24-h-old Streptococcus mutans biofilms. The grown biofilms were treated with the berry extracts at concentrations ranging from 62.5 to 500 μg ml-1 . Treated biofilms were assessed for metabolic activity, acidogenicity, biovolumes, structural organization, and bacterial viability...
December 28, 2018: European Journal of Oral Sciences
Anne N Åstrøm, Stein A Lie, Gunnar Ekback, Ferda Gülcan, Sven Ordell
Focusing on Swedish and Norwegian cohorts of community-dwelling older adults between age 65 and 70, this study aimed to identify predictors of the prevalence and incident cases of daytime and night-time xerostomia. It was hypothesized that the prevalence increases with increasing age and is higher in women than in men and that the prevalence of persistent xerostomia and the 5-yr-incident cases are higher in people with consistent use of medication and need for health care. Of the Norwegian participants who completed the 2007 survey (age 65 yr), 70% (n = 2,947) participated in 2012...
December 25, 2018: European Journal of Oral Sciences
Akimasa Tsujimoto, Yusuke Shimatani, Kie Nojiri, Wayne W Barkmeier, Mark D Markham, Toshiki Takamizawa, Mark A Latta, Masashi Miyazaki
The purpose of this study was to evaluate whether surface wetness would influence the bonding effectiveness of universal adhesives in etch-and-rinse mode. All-Bond Universal (AB), G-Premio Bond (GP), Prime & Bond Active (PB), and Scotchbond Universal Adhesive (SU) were evaluated. Initial bond strengths and bond-fatigue strengths of universal adhesives to both wet and dry enamel and dentin in etch-and-rinse mode were determined. Scanning electron microscopy observations of the adhesive interfaces were also conducted...
December 11, 2018: European Journal of Oral Sciences
Geum-Jun Han, Jun-Min Kim, Byeong-Hoon Cho, Yunchan Hwang, Hae-Young Kim
This study aimed to evaluate the improvement in strength and durability of the bond between dentin and composite resins following plasma drying of the etched dentin surface using non-thermal atmospheric pressure plasma. Plasma drying was applied to the etched dentin before applying adhesive. Conventional wet-bonding and helium (He) gas-dried bonding schemes were used as control groups. The bond strength of the composite resin to dentin was measured as the microtensile bond strength at 24 h after bonding and after 10,000 cycles of thermocycling...
December 9, 2018: European Journal of Oral Sciences
Jiawei Zhang, Shuhao Xu, Yanggen Zhang, Shujuan Zou, Xiaobing Li
Mechanical stretch commonly promotes craniofacial suture remodeling during interceptive orthodontics. The mechanical responses of osteoblasts in craniofacial sutures play a role in suture remodeling. Moreover, the extracellular matrix (ECM) produced by osteoblasts is crucial for the transduction of mechanical signals that promote cell differentiation. Therefore, we aimed to investigate the effect of mechanical stretch on cell viability and ECM-related gene-expression changes in human osteoblasts. Human calvarial osteoblasts (HCObs) were subjected to 2% deformation...
November 26, 2018: European Journal of Oral Sciences
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No abstract text is available yet for this article.
February 2019: European Journal of Oral Sciences
(no author information available yet)
No abstract text is available yet for this article.
December 2018: European Journal of Oral Sciences
(no author information available yet)
No abstract text is available yet for this article.
December 2018: European Journal of Oral Sciences
Kosuke Kusaba, Futoshi Komine, Junichi Honda, Kei Kubochi, Hideo Matsumura
This study investigated the effect of preparation design on the marginal and internal adaptation of laminate veneers (LVs) fabricated from translucent zirconia. Thirty-three resin teeth were prepared for LVs of three designs: window preparation (WP); incisal shoulder preparation (ISP); and incisal palatal chamfer preparation (IPP). Marginal adaptation was evaluated by measuring the vertical discrepancy between the LV margin and the finish line at 60 points. The internal adaptation was assessed by measuring the internal space width as the distance between the LV and the tooth at cervical, central, and incisal sites after sectioning...
December 2018: European Journal of Oral Sciences
Guido Sterzenbach, Martin Rosentritt, Hendrik Meyer-Lueckel, Kerstin Bitter, Michael Naumann
The influence of a fiber post-restored abutment tooth on the load capability of a three-unit zirconia framework cantilever fixed dental prosthesis (cFDP) was evaluated after simulated clinical function. Human lower sound premolars (n = 64) were distributed, in equal numbers, to four experimental groups: two vital abutment teeth (group I; control); mesial abutment tooth post-restored (group II); distal abutment tooth post-restored (group III); and mesial and distal abutment teeth post-restored (group IV). All specimens received an adhesively luted three-unit cFDP of veneered zirconia...
December 2018: European Journal of Oral Sciences
Anneli Skjold, Christian Schriwer, Marit Øilo
Zirconia-based restorations are showing an increase as the clinicians' preferred choice at posterior sites because of the strength and esthetic properties of such restorations. However, all-ceramic restorations fracture at higher rates than do metal-based restorations. Margin design is one of several factors that can affect the fracture strength of all-ceramic restorations. The aim of this study was to assess the effect of preparation and crown margin design on fracture resistance. Four groups of bilayer zirconia crowns (with 10 crowns in each group) were produced by hard- or soft-machining technique, with the following four different margin designs: chamfer preparation (control); slice preparation; slice preparation with an additional cervical collar of 0...
November 22, 2018: European Journal of Oral Sciences
Michal Jágr, Peter Ergang, Statis Pataridis, Marta Kolrosová, Martin Bartoš, Ivan Mikšík
The dentin-enamel junction (DEJ) is the border where two different mineralized structures - enamel and dentin - meet. The protein-rich DEJ, together with the inner enamel region of mature teeth, is known to exhibit higher fracture toughness and crack growth resistance than bulk phase enamel. However, an explanation for this behavior has been hampered by the lack of compositional information for the DEJ and the adjacent enamel organic matrix (EOM). We studied proteomes of the DEJ and EOM of healthy human molars and compared them with dentin and enamel proteomes from the same teeth...
November 22, 2018: European Journal of Oral Sciences
Di Wu, Mei Wang, Xingang Wang, Yong-Biao Zhang, Tao Song, Ningbei Yin, Zhenmin Zhao
Single-nucleotide polymorphisms (SNPs) in protein-coding regions of genes which were previously reported to be associated with nonsyndromic cleft lip, with or without palate involvement (NSCL/P), were investigated. Twelve candidate loci [platelet-derived growth factor C (PDGFC), platelet-derived growth factor subunit A (PDGFA), platelet-derived growth factor receptor alpha (PDGFRA), glycine receptor alpha 2 (GLRA2), glycine receptor beta (GLRB), ATP binding cassette subfamily A member 4 (ABCA4), MAF bZIP transcription factor B (MAFB), interferon regulatory factor 6 (IRF6), CCDC26 long non-coding RNA (CCDC26), paired box 7 (PAX7), ventral anterior homeobox 1 (VAX1), and netrin 1 (NTN1)] covering 1...
November 21, 2018: European Journal of Oral Sciences
Siri F Kvalheim, Victoria Xenaki, Arild Kvalheim, Stein-Atle Lie, Mihaela C Marthinussen, Gunhild V Strand, Daniela E Costea
The majority of severely ill patients experience dry mouth. For institutionalized patients, this condition is commonly treated using glycerol as a lubricant. However, because of its possibly desiccating effect, some countries do not advocate the use of glycerol. This study aimed to investigate dose-dependent effects of glycerol on homeostasis and tissue integrity of in vitro-reconstructed normal human buccal mucosa (RNHBM). Primary keratinocytes and fibroblasts were isolated and expanded from biopsies of mucosa from eight healthy volunteers...
November 19, 2018: European Journal of Oral Sciences
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