High-Frequency Ultrasound Imaging for Examination of Early Dental Caries.

abstract：:Several studies indicated that serotype/biotype c strains are the most common on a global basis, but that regional differences may occur relative to other serotype/biotypes. Of particular interest is the observation that individuals residing in the Middle East have higher incidences of serotype e and d strains relativ...

journal_title：Journal of dental research

authors： Farghaly MM,Eklund S,Loesche WJ

更新日期：1984-01-01 00:00:00

abstract：:The oral cavity contains a rich consortium of exopolysaccharide-producing microbes. These extracellular polysaccharides comprise a major component of the oral biofilm. Together with extracellular proteins, DNA, and lipids, they form the biofilm matrix, which contributes to bacterial colonization, biofilm formation and...

journal_title：Journal of dental research

authors： Cugini C,Shanmugam M,Landge N,Ramasubbu N

更新日期：2019-07-01 00:00:00

abstract：:Relative glycogen synthetic abilities of resting cells of fresh clinical isolates of Actinomyces viscosus and Actinomyces naeslundii originating from dental plaque samples over root surface caries lesions and non-carious sites were studied under anaerobic conditions at a constant pH of 7.0, with U-(14C)-glucose used a...

journal_title：Journal of dental research

authors： Komiyama K,Khandelwal RL,Duncan DE

更新日期：1986-06-01 00:00:00

abstract：:The effect of different doses of polyadenylic and polyuridylic acids (poly A:U) was studied in control rats and in rats exposed to hypoxia. In the control rats, administration of different doses of poly A:U did not change the thickness of the epiphyseal plate or increase the incorporation of 3H-phenylalanine as judged...

journal_title：Journal of dental research

authors： Koo CS,Kim MK,Han SS

更新日期：1976-07-01 00:00:00

abstract：:Periodontitis is a chronic inflammatory disease induced by a biofilm that forms on the tooth surface. Increased periodontal disease is associated with aging. We investigated the effect of aging on challenge by oral pathogens, examining the host response, colonization, and osteoclast numbers in aged versus young mice. ...

journal_title：Journal of dental research

authors： Wu Y,Dong G,Xiao W,Xiao E,Miao F,Syverson A,Missaghian N,Vafa R,Cabrera-Ortega AA,Rossa C Jr,Graves DT

更新日期：2016-04-01 00:00:00

abstract：:The tissue-implant interfaces of functional and non-functional endosseous dental implants were compared histologically for up to one year post-operatively. Nonmineralized connective tissue zones (a "fibrous capsule") existed in all functional interfaces. Direct, or nearly direct, bone apposition to implants occurred i...

journal_title：Journal of dental research

authors： Brunski JB,Moccia AF Jr,Pollack SR,Korostoff E,Trachtenberg DI

更新日期：1979-10-01 00:00:00

abstract：:The solubilities of extracellular polysaccharide fractions produced by 14 oral streptococcal strains were compared in water, aqueous lithium and guanidine salt solutions, dimethyl sulfoxide (DMSO), and a 9:1 DMSO-water mixture. The best results for solubilizing the fractions were obtained with the DMSO-water mixture p...

journal_title：Journal of dental research

authors： Lamberts BL,Meyer TS,Simonson LG

更新日期：1975-07-01 00:00:00

abstract：:The aim of the present in vitro experiments was to determine whether the protection of enamel by topically applied fluoride against demineralization by bacterial acids would depend on the fluoride sensitivity of the bacteria. Glucose-agarose gel suspensions of fluoride-sensitive and fluoride-resistant mutans streptoco...

journal_title：Journal of dental research

authors： van Loveren C,Buijs JF,ten Cate JM

更新日期：1993-08-01 00:00:00

abstract：:Recent evidence implicates endothelin in nociception, but it is unclear how endothelin activates trigeminal ganglion (TRG) neurons. In the present study, we investigated the expression of the endothelin receptors ETA and ETB and endothelin-induced responses in rat TRG neurons. Double-immunofluorescence studies demonst...

journal_title：Journal of dental research

authors： Yamamoto T,Ono K,Hitomi S,Harano N,Sago T,Yoshida M,Nunomaki M,Shiiba S,Watanabe S,Nakanishi O,Inenaga K

更新日期：2013-04-01 00:00:00

abstract：:Samples of a base mental alloy were cast and welded together using a conventional welding procedure. The joints were loaded and placed either in a corrosive environment or in air for varying time periods. The tensile and shear strength of the joints was unaffected by the corrosive environment, and the joints, despite ...

journal_title：Journal of dental research

authors： MacEntee MI,Hawbolt EB,Zahel JI

更新日期：1981-02-01 00:00:00

abstract：:Ten dental casting alloys were tested for alloy-element release into cell-culture medium, and this release was related to alloy composition, alloy microstructure, and alloy cytotoxicity (previously determined). Cell-culture medium was analyzed for alloy elements by flame atomic absorption. Concentrations of elements i...

journal_title：Journal of dental research

authors： Wataha JC,Craig RG,Hanks CT

更新日期：1991-06-01 00:00:00

abstract：:Epithelial-mesenchymal interactions are required for tooth formation. Bone morphogenetic protein 4 (Bmp4) is a crucial signaling molecule during this process. For better understanding of the role of the Bmp4 gene during tooth development, we studied the mechanisms that control its temporal and spatial expression durin...

journal_title：Journal of dental research

authors： Feng JQ,Zhang J,Tan X,Lu Y,Guo D,Harris SE

更新日期：2002-01-01 00:00:00

abstract：:Intra-oral wounds, like wounds in children, demonstrate privileged healing when compared with adult wounds at extra-oral sites. This study investigated whether this preferential healing is related to an increased ability of oral mucosal fibroblasts to reorganize extracellular matrix (ECM) when compared with their derm...

journal_title：Journal of dental research

authors： Stephens P,Davies KJ,al-Khateeb T,Shepherd JP,Thomas DW

更新日期：1996-06-01 00:00:00

abstract：:Carbamide peroxide (CP) is widely used as a tooth-whitening agent in self-administered tooth-bleaching products. In this study, the effects of 5% and 10% CP on dentinal collagen structure and chemical properties were evaluated in vitro. Thirty-five intact teeth were exposed to 2 whitening protocols (2 or 4 h daily) wi...

journal_title：Journal of dental research

authors： Redha O,Strange A,Maeva A,Sambrook R,Mordan N,McDonald A,Bozec L

更新日期：2019-04-01 00:00:00

abstract：:The range of substrates transported by the sugar-binding protein-dependent msm (multiple sugar metabolism) system of S. mutans was investigated. By determining the ability of unlabeled sugar to compete with radiolabeled melibiose transport, we have demonstrated that the transported sugars included a number of carbohyd...

journal_title：Journal of dental research

authors： Tao L,Sutcliffe IC,Russell RR,Ferretti JJ

更新日期：1993-10-01 00:00:00

abstract：:Levels of mutans streptococci in plaque samples from margins of Class II amalgam (Dispersalloy), composite (P-10), and glass-ionomer (Ketac Silver) restorations were compared. Fifty-one children, each having one of the restorations in a permanent first molar, were part of an inter-individual comparison, giving 17 rest...

journal_title：Journal of dental research

authors： Svanberg M,Mjör IA,Orstavik D

更新日期：1990-03-01 00:00:00

abstract：:During the setting of a resin composite cement (RCC) used as an adhesive between a resin-bonded bridge and tooth structure, the adhesion may be disrupted by the development of shrinkage stress. The aim of this study was to investigate the influence of the shrinkage stress of three different RCCs on their adhesive and ...

journal_title：Journal of dental research

authors： Verzijden CW,Feilzer AJ,Creugers NH,Davidson CL

更新日期：1992-02-01 00:00:00

abstract：:Zirconia-based restorations often fracture from chipping and/or delamination of the porcelain veneers. We hypothesized that veneer chipping/delamination is a result of the propagation of near-contact-induced partial cone cracks on the occlusal surface under mastication. Masticatory loading involves the opposing tooth ...

journal_title：Journal of dental research

authors： Kim JW,Kim JH,Janal MN,Zhang Y

更新日期：2008-12-01 00:00:00

abstract：:Locally applied bisphosphonates may improve the fixation of metal implants in bone. However, systemic bisphosphonate treatment is associated with a risk of osteonecrosis of the jaw (ONJ). We hypothesized that local delivery of bisphosphonate from the implant surface improves the fixation of dental implants without com...

journal_title：Journal of dental research

authors： Abtahi J,Agholme F,Sandberg O,Aspenberg P

更新日期：2013-03-01 00:00:00

abstract：:A radiotracer technique was used to study silver and gold diffusion into dental porcelain under experimental conditions close to the real conditions in prosthetic laboratories for porcelain bakes. It was clearly shown that these non-oxidizable elements were able to diffuse into the ceramic as well as oxidizable ones. ...

journal_title：Journal of dental research

authors： Moya F,Payan J,Bernardini J,Moya EG

更新日期：1987-12-01 00:00:00

abstract：:The microstructures of (beta + gamma) silver-tin alloys are especially influenced by both homogenization temperature and subsequent heat treatment. When the alloy is cooled from homogenization temperatures above approximately 200 degrees C, lenticular regions of the ordered orthorhombic gamma phase precipitate from wi...

journal_title：Journal of dental research

authors： Abbott JR,Miller DR,Netherway DJ

更新日期：1985-05-01 00:00:00

abstract：:Contact angle measurements on layers of bacteria were used to determine the bacterial surface free energy (gamma b) of a variety of oral streptococcal strains, both without and after being coated with human whole saliva. At least four isolates of each species, either freshly isolated or laboratory strains, were used. ...

journal_title：Journal of dental research

authors： Weerkamp AH,van der Mei HC,Busscher HJ

更新日期：1985-10-01 00:00:00

abstract：:Three strain combinations of in-bred mice representing strong and moderate histocompatibility barriers were used to determine if tooth allotransplants evoked strong or weak immunologic memory as measured by the second-set donor-strain skin graft technique. At issue was whether the anatomic site of engraftment could in...

journal_title：Journal of dental research

authors： Riviere GR

更新日期：1984-01-01 00:00:00

abstract：:Apoptosis plays important roles in various stages of organogenesis. In this study, we hypothesized that apoptosis would play an important role in tooth morphogenesis. We examined the role of apoptosis in early tooth development by using a caspase inhibitor, z-VAD-fmk, concomitant with in vitro organ culture and tooth ...

journal_title：Journal of dental research

authors： Kim JY,Cha YG,Cho SW,Kim EJ,Lee MJ,Lee JM,Cai J,Ohshima H,Jung HS

更新日期：2006-06-01 00:00:00

abstract：:Acculturation is a complex phenomenon that can serve as a proxy for cultural norms and behaviors affecting care-seeking, prevention behaviors, and, ultimately, health outcomes. The purpose of this study was to assess the effect of acculturation on the oral health of Haitian immigrants in New York City. We hypothesized...

journal_title：Journal of dental research

authors： Cruz GD,Shore R,Le Geros RZ,Tavares M

更新日期：2004-02-01 00:00:00

abstract：:Dental composites develop residual stresses during polymerization due to shrinkage. These stresses may change with time because of relaxation and water sorption in the oral environment. This phenomenon is likely dependent on the composition of the materials, specifically their hydrophilic characteristics, and could re...

journal_title：Journal of dental research

authors： Park JW,Ferracane JL

更新日期：2014-02-01 00:00:00

abstract：:The relative contribution of the matrix of dentin to the physical properties of dentin is unknown but thought to be small. The objective of this study was to test the hypothesis that the demineralized matrix of dentin contributes little to the strength of dentin by measuring and comparing the ultimate tensile strength...

journal_title：Journal of dental research

authors： Sano H,Ciucchi B,Matthews WG,Pashley DH

更新日期：1994-06-01 00:00:00

abstract：:Inferior alveolar nerve (IAN) injury induces persistent ectopic pain which spreads to a wide area in the orofacial region. Its exact mechanism remains unclear. We investigated the involvement of nitric oxide (NO) in relation to ectopic orofacial pain caused by IAN transection (IANX). We assessed the changes in mechani...

journal_title：Journal of dental research

authors： Sugiyama T,Shinoda M,Watase T,Honda K,Ito R,Kaji K,Urata K,Lee J,Ohara K,Takahashi O,Echizenya S,Iwata K

更新日期：2013-12-01 00:00:00

abstract：:Laser-Raman spectra of synthetic apatites containing from zero to 12.4 wt% carbonate ions and enamel apatite are reported. Special attention is paid to the correlation between the intensities of the carbonate, phosphate, and hydroxyl modes and the carbonate content in the apatites. The data presented here indicate tha...

journal_title：Journal of dental research

authors： Nishino M,Yamashita S,Aoba T,Okazaki M,Moriwaki Y

更新日期：1981-03-01 00:00:00

abstract：:Retinoic acid-inducible gene I (RIG-I) is a cytosolic pattern recognition receptor involved in the sensing of RNA viruses and the initiation of antiviral responses. Fusobacterium nucleatum, a Gram-negative anaerobic bacterium associated with periodontal disease, is capable of invading cells. We hypothesized that F. nu...

journal_title：Journal of dental research

authors： Lee P,Tan KS

更新日期：2014-02-01 00:00:00