Magnification--a new look at a long-known optical property of dentin.

abstract：:The expired air of a group of 48 persons, 40 with and eight without dental amalgam restorations, was analyzed for its mercury content before and after chewing. Expired air samples were collected in polyethylene bags, and a known quantity of each was pumped into the mercury detector for measurement. The results showed ...

journal_title：Journal of dental research

authors： Svare CW,Peterson LC,Reinhardt JW,Boyer DB,Frank CW,Gay DD,Cox RD

更新日期：1981-09-01 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：:Dickkopf-related protein 1 (DKK1) is a potent inhibitor of Wnt/β-catenin signaling. Dkk1-null mutant embryos display severe defects in head induction. Conversely, targeted expression of Dkk1 in dental epithelial cells leads to the formation of dysfunctional enamel knots and subsequent tooth defects during embryonic de...

journal_title：Journal of dental research

authors： Han XL,Liu M,Voisey A,Ren YS,Kurimoto P,Gao T,Tefera L,Dechow P,Ke HZ,Feng JQ

更新日期：2011-11-01 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：:In a standard periodontal treatment strategy with consecutive root planings (per quadrant at a one- to two-week interval), re-infection of a disinfected area might occur before completion of the treatment. This study examines, both clinically and microbiologically, whether a full-mouth disinfection within 24 hours sig...

journal_title：Journal of dental research

authors： Quirynen M,Bollen CM,Vandekerckhove BN,Dekeyser C,Papaioannou W,Eyssen H

更新日期：1995-08-01 00:00:00

abstract：:Previously, in vitro differentiation of odontoblasts was shown for dental pulp stem cells (DPSCs) transfected with bone morphogenetic protein-2 (Bmp2). For this study, we hypothesized that such cells also show potential for mineralized tissue formation in vivo. DPSCs were transfected with Bmp2 and seeded onto a cerami...

journal_title：Journal of dental research

authors： Yang X,van der Kraan PM,Bian Z,Fan M,Walboomers XF,Jansen JA

更新日期：2009-11-01 00:00:00

abstract：:Weanling rice rats were fed either standard laboratory chow or Diet 2000. The animals were sacrificed at 4, 8, 12, and 15 weeks. There was an increasing amount of exposed root surface and root surface caries with age in the animals fed Diet 2000. There was exposed root surface but no caries in the animals fed laborato...

journal_title：Journal of dental research

authors： Doff RS,Rosen S,App G

更新日期：1977-09-01 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：:In this study, we first investigated the expressions of Jagged1, Notch2, the receptor activator of nuclear factor-kappa B ligand (RANKL), and interleukin (IL)-6 in areas of root resorption during experimental tooth movement in rats in vivo. We then assessed the effects of compression force (CF) with or without GSI (an...

journal_title：Journal of dental research

authors： Kikuta J,Yamaguchi M,Shimizu M,Yoshino T,Kasai K

更新日期：2015-01-01 00:00:00

abstract：:Diet is recognized as one of the most important factors affecting the equilibrium of the oral bacterial flora. Studies related to dental caries development have focused mainly on the effect of carbohydrates. In the present work, using swabbing coupled with an immuno-colony-blot assay, we followed the indigenous oral b...

journal_title：Journal of dental research

authors： Blais JF,Lavoie MC

更新日期：1990-03-01 00:00:00

abstract：:The relationship between occlusal stimuli and a hypofunctional periodontal ligament (PDL) structure has been reported, though changes in occlusal recovery conditions were still unclear. Nitric oxide (NO) produced by NO synthase (NOS) is considered a factor for vascular and immune system control, and it increases accor...

journal_title：Journal of dental research

authors： Watarai H,Warita H,Soma K

更新日期：2004-04-01 00:00:00

abstract：:Soft lining materials undergo two processes when immersed in water. Plasticizers and other soluble materials are leached into the water, and water is absorbed by the polymer. The balance between these two processes affects both the compliance and dimensional stability of the materials. ...

journal_title：Journal of dental research

authors： Braden M,Wright PS

更新日期：1983-06-01 00:00:00

abstract：:The cartilaginous nasal septa of 28 albino rats were marked with pairs of wire implants. Measurements obtained from cephalometric radiographs taken at 30 and 60 days revealed that the implants invariably separatd and did so at a rate that was highly correlated with the growth of the rest of the snout. ...

journal_title：Journal of dental research

authors： Catala AE,Johnston LE Jr

更新日期：1980-08-01 00:00:00

abstract：:Although osteoporosis is a major public health concern, the effect of this condition on oral bone has not been determined. Using the ovariectomized rat as a model, we examined whether acute estrogen depletion affects the mandible of the ovariectomized rat with and without maxillary molar extraction. Twenty-two ovariec...

journal_title：Journal of dental research

authors： Elovic RP,Hipp JA,Hayes WC

更新日期：1994-11-01 00:00:00

abstract：:It has not been established whether transmission of mutans streptococci occurs between unrelated children older than 4 years of age. The aim of the study was to investigate the possible transmission of mutans streptococci genotypes from child to child in kindergarten. We studied 96 children (ages 5-6 yrs) in three San...

journal_title：Journal of dental research

authors： Doméjean S,Zhan L,DenBesten PK,Stamper J,Boyce WT,Featherstone JD

更新日期：2010-01-01 00:00:00

abstract：:We have previously reported the clinical and radiographic findings of a trial in dogs of a new dental implant system after a functional period of eight months. The present report consists of the corresponding qualitative and quantitative histological data. The implant system was fabricated from Ti-6A1-4V and employed ...

journal_title：Journal of dental research

authors： Deporter DA,Watson PA,Pilliar RM,Howley TP,Winslow J

更新日期：1988-09-01 00:00:00

abstract：:The oral microbiota was compared between Romanian adolescents with a high prevalence of caries and no dental care and Swedish caries-active and caries-free adolescents in caries prevention programs and with a low prevalence of caries. Biofilm samples were analyzed by FLX+ pyrosequencing of the V1 to V4 hypervariable r...

journal_title：Journal of dental research

authors： Johansson I,Witkowska E,Kaveh B,Lif Holgerson P,Tanner AC

更新日期：2016-01-01 00:00:00

abstract：:Enamel crystals in the demineralized zones in early caries lesions of human teeth were observed by high-resolution electron microscopy. The enamel crystals frequently exhibited perforations in their centers and defects of various sizes on their lateral surfaces. There were a number of small electron-lucent spots, sugg...

journal_title：Journal of dental research

authors： Tohda H,Takuma S,Tanaka N

更新日期：1987-11-01 00:00:00

abstract：:The destabilizing effect of endodontic treatment upon teeth is still controversial. The purpose of this study was to investigate the effects of different steps of endodontic treatments upon the rigidity of teeth. Extracted untreated central maxillary anterior teeth were loaded (3.75 N), and deformations of the root we...

journal_title：Journal of dental research

authors： Lang H,Korkmaz Y,Schneider K,Raab WH

更新日期：2006-04-01 00:00:00

abstract：:A major extracellular protein of cultured adult human gingival fibroblasts was shown to be fibronectin by indirect immunofluorescence, lactoperoxidase catalyzed iodination and metabolic radiolabeling. Fibronectin preparations from these cells possessed the biological properties of agglutination of sheep red blood cell...

journal_title：Journal of dental research

authors： Baum BJ,Wright WE

更新日期：1980-03-01 00:00:00

abstract：:During the past two decades, some major pitfalls in fluorine analysis have been recognized and overcome. Therefore, it is important that facts be separated from fallacies in published literature on levels and forms of fluorine (ionic, bound, covalent, etc.) in biological materials, in order that correct perceptions of...

journal_title：Journal of dental research

authors： Venkateswarlu P

更新日期：1990-02-01 00:00:00

abstract：:A procedure for measuring nasal airway resistance using posterior rhinorheometry is described. Baseline nasal airway resistances +/- 1 S.D. at an airflow of 0.5 L/sec were found to be 1.077 +/- 0.683 cm H2O for inhalation and 1.359 +/- 0.792 cm H2O for exhalation. Application of either cold water (4 to 6 C) or warm wa...

journal_title：Journal of dental research

authors： Martin JS,Tansy MF

更新日期：1977-11-01 00:00:00

abstract：:The effect of enamel matrix proteins on the seeded growth of enamel apatite crystals was studied in stable supersaturated solutions at pH 7.4 and 37 degrees C. Of the two major protein classes in the enamel matrix, the enamelins were considerably more effective than the amelogenins in retarding seeded growth. However,...

journal_title：Journal of dental research

authors： Doi Y,Eanes ED,Shimokawa H,Termine JD

更新日期：1984-02-01 00:00:00

abstract：:Clinical evidence is lacking regarding the influence of the amount of residual coronal dentin and of post placement on the failure risk of endodontically compromised teeth. The aim of this prospective clinical trial was to assess whether these factors significantly affect the two-year survival of restored pulpless pre...

journal_title：Journal of dental research

authors： Ferrari M,Cagidiaco MC,Grandini S,De Sanctis M,Goracci C

更新日期：2007-08-01 00:00:00

abstract：:Changes in stimulated and non-stimulated whole saliva flow rates were measured in 11 Hodgkin's disease patients who received therapeutic doses of radiation to a mantle field at the M. D. Anderson Hospital in Houston, Texas. Salivary flow rates were examined before, during, and after radiotherapy. Mean flow rate reduct...

journal_title：Journal of dental research

authors： Bucher JA,Fleming TJ,Fuller LM,Keene HJ

更新日期：1988-02-01 00:00:00

abstract：:Pilocarpine (P) is of potential utility in the treatment of xerostomia. Because optimal development of P dosage forms for humans requires that its pharmacokinetics and pharmacodynamics be defined, this intravenous study of its disposition and associated salivary responses was performed. In a hospital setting, two heal...

journal_title：Journal of dental research

authors： Tanzer JM,Kramer PA,Schulman P,Willard AK

更新日期：1995-12-01 00:00:00

abstract：:Previous studies have shown that fluoride affected the formation of apatite in spontaneous precipitations from unstable calcium phosphate solutions partly through its effect on the stability of such nonapatitic precursors as octacalcium phosphate, Ca8H2(PO4)6.5 H2O. The present study shows that fluoride had a comparab...

journal_title：Journal of dental research

authors： Eanes ED

更新日期：1980-02-01 00:00:00

abstract：:Stress-induced changes imparted in a 'dentin-bonded-crown' material during sintering, annealing, pre-cementation surface modification, and resin coating have been visualized by profilometry. The hypothesis tested was that operative techniques modify the stressing pattern throughout the material thickness. We polished ...

journal_title：Journal of dental research

authors： Isgró G,Addison O,Fleming GJ

更新日期：2010-01-01 00:00:00

abstract：:Current challenges in adhesive dentistry include over-hydrophilic bonding formulations, which facilitate water percolation through the hybrid layer and result in unreliable bonded interfaces. This study introduces nanogel-modified adhesives as a way to control the material's hydrophobic character without changing the ...

journal_title：Journal of dental research

authors： Morães RR,Garcia JW,Wilson ND,Lewis SH,Barros MD,Yang B,Pfeifer CS,Stansbury JW

更新日期：2012-02-01 00:00:00

abstract：:The temporomandibular joint (TMJ) undergoes degenerative changes among patients who suffer from arthritis, and yet the pathogenesis of TMJ osteoarthritis and rheumatoid arthritis is poorly understood. We hypothesized that sustained inflammation in the TMJ induces structural abnormalities, and accordingly characterized...

journal_title：Journal of dental research

authors： Wang XD,Kou XX,Mao JJ,Gan YH,Zhou YH

更新日期：2012-05-01 00:00:00