Effect of xylitol consumption on the plaque-saliva distribution of mutans streptococci and the occurrence and long-term survival of xylitol-resistant strains.

abstract：:In two separate experiments, none of the 14 subunits examined consistently ranked dentifrices similarly to the ranking obtained when the individual rat was used as the experimental unit. Arbitrarily dividing the rat into subunits and then comparing results among these subunits may lead to false conclusions since the r...

journal_title：Journal of dental research

authors： Briner WW

更新日期：1976-05-01 00:00:00

abstract：:Lactoferrin is one of a number of multifunctional proteins that are present in or on all mucosal surfaces throughout the body. Levels of lactoferrin are consistently elevated in inflammatory diseases such as arthritis, inflammatory bowel diseases, corneal disease, and periodontitis. Single-nucleotide polymorphisms (SN...

journal_title：Journal of dental research

authors： Fine DH

更新日期：2015-06-01 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 proton probe has been used to map F concentration changes in the enamel of 15 teeth showing clinical evidence of caries. Thin sections through the lesions were microradiographed and measurements made of the surface zone (radiodense) and body (radiolucent) areas. Each section was then scanned with a focused beam of...

journal_title：Journal of dental research

authors： Pearce EI,Coote GE,Larsen MJ

更新日期：1995-11-01 00:00:00

abstract：:The dental follicle (DF) differentiates into the periodontal ligament. In addition, it may be the precursor of other cells of the periodontium, including osteoblasts and cementoblasts. We hypothesized that stem cells may be present in the DF and be capable of differentiating into cells of the periodontium. Stem cells ...

journal_title：Journal of dental research

authors： Yao S,Pan F,Prpic V,Wise GE

更新日期：2008-08-01 00:00:00

abstract：:Setting reactions and compressive strengths of a self-hardening calcium phosphate cement (CPC) were investigated. The CPC consists of tetracalcium phosphate (TTCP) and anhydrous dicalcium phosphate (DCPA). The cement specimens were prepared by mixing 0.7 g of the powder (TTCP 72.9 wt% + DCPA 27.1 wt%) with 0.175 mL of...

journal_title：Journal of dental research

authors： Fukase Y,Eanes ED,Takagi S,Chow LC,Brown WE

更新日期：1990-12-01 00:00:00

abstract：:In mineralizing hamster molars, the influence of several inhibitors on p-NPP-ase has been demonstrated, and compared with their effect on PPi-ase, known to belong to the same enzyme. Whereas the latter activity is much more physiological, p-NPP is a better substrate to distinguish between the effects of bivalent catio...

journal_title：Journal of dental research

authors： Wöltgens JH

更新日期：1977-10-01 00:00:00

abstract：:In an attempt to make a dynamic study of the isoelectric point and the chargeability of human dental enamel, an electrochemical approach was utilized. Zeta potential of three kinds of the enamel was measured by a streaming potential method. As a result, these isoelectric points could be decided. ...

journal_title：Journal of dental research

authors： Kambara M,Asai T,Kumasaki M,Konishi K

更新日期：1978-02-01 00:00:00

abstract：:Recent advances in molecular biology have facilitated analyses of the oral microbiome ("Who are they?"); however, its functions (e.g., metabolic activities) are poorly understood ("What are they doing?"). This review aims to summarize our current understanding of the metabolism of the oral microbiome. Saccharolytic ba...

journal_title：Journal of dental research

authors： Takahashi N

更新日期：2015-12-01 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：:Oral bacteria, including Streptococcus mutans and Streptococcus salivarius, contribute to tooth decay and plaque formation; therefore, it is essential to develop strategies to prevent dental caries and plaque formation. We recently showed that organo-selenium compounds covalently attached to different biomaterials inh...

journal_title：Journal of dental research

authors： Tran P,Hamood A,Mosley T,Gray T,Jarvis C,Webster D,Amaechi B,Enos T,Reid T

更新日期：2013-05-01 00:00:00

abstract：:Previous investigations have shown a clear association between the presence of the enzyme aspartate aminotransferase (AST) in gingival crevicular fluid (GCF) and clinical evidence of periodontal disease in humans, as well as in the beagle dog model. This paper describes a 26-week study that uses the beagle dog model o...

journal_title：Journal of dental research

authors： Cohen RL,Alves ME,Crawford JM,McSwiggin T,Chambers DA

更新日期：1991-06-01 00:00:00

abstract：:Light propagation in human dentin exhibits a strong directional dependence featuring the long-known optical magnification property. We hypothesized that this anisotropic effect is caused by multiple scattering at the dentin tubules, and not by fiberoptic effects, as had been previously assumed. We performed measuremen...

journal_title：Journal of dental research

authors： Kienle A,Michels R,Hibst R

更新日期：2006-10-01 00:00:00

abstract：:Significant associations between atherosclerosis and both Porphyromonas gingivalis, a major periodontopathogen, and the respiratory pathogen, Chlamydia pneumoniae, have been shown. Many individuals with evidence of atherosclerosis demonstrate seropositivity to these pathogens. The aim of the present study was to exami...

journal_title：Journal of dental research

authors： Ford PJ,Gemmell E,Timms P,Chan A,Preston FM,Seymour GJ

更新日期：2007-01-01 00:00:00

abstract：:The effects of oral rinses on enamel fluoride uptake, caries, and plaque pH in rats were investigated by use of (1) an acidic calcium phosphate solution (CPS) saturated with dicalcium phosphate dihydrate (DCPD) and (2) a 1% fluoride solution. Osborne-Mendel rats, 19 days of age, were randomly assigned to one of four m...

journal_title：Journal of dental research

authors： Schreiber CT,Shern RJ,Chow LC,Kingman A

更新日期：1988-06-01 00:00:00

abstract：:The biogenetic formation of mineral crystals, one aspect of biomineralization, is a multistep process of apatite formation throughout the growth of dentin tissue. An important step is the transformation of the non-mineralized predentin matrix to mineralizing dentin matrix and its biological control. In this study, the...

journal_title：Journal of dental research

authors： Wiesmann HP,Plate U,Zierold K,Höhling HJ

更新日期：1998-08-01 00:00:00

abstract：:Urinary catecholamines have been used to measure emotionally stressful states which may affect the development of dental caries. This study investigates the hypothesis that children with and without dental caries do not differ significantly in the mean values of urinary catecholamines such as epinephrine, norepinephri...

journal_title：Journal of dental research

authors： Vanderas AP,Manetas C,Papagiannoulis L

更新日期：1995-10-01 00:00:00

abstract：:The anticaries effect of professional fluoride (F) application has been attributed to calcium-fluoride-like deposits (CaF(2)) formed on enamel, but this has not been clearly demonstrated. We hypothesized that CaF(2) formed on plaque-free enamel by F application would reduce enamel demineralization due to the increase ...

journal_title：Journal of dental research

authors： Tenuta LM,Cerezetti RV,Del Bel Cury AA,Tabchoury CP,Cury JA

更新日期：2008-11-01 00:00:00

abstract：:Proteolytic hydrolysis of casein and porcine or bovine glycoproteins by S mutans was demonstrated in the present study. Caseinolytic activity was found in both the soluble contents of the cells and the cellular debris after rupture of the cells. However, caseinolytic activity could not be demonstrated after growth in ...

journal_title：Journal of dental research

authors： Cowman RA,Perrella MM,Fitzgerald RJ

更新日期：1976-05-01 00:00:00

abstract：:There is a large variability between and among individuals in the physiology of mastication, but it is not known whether this produces a similar variability in the particle sizes of food boluses at the end of the chewing process. Food boluses obtained just before swallowing were analyzed in ten subjects (aged 36.7 +/-...

journal_title：Journal of dental research

authors： Peyron MA,Mishellany A,Woda A

更新日期：2004-07-01 00:00:00

abstract：:Sensitivity or pain of the mucoperiosteum covering the mandibular edentulous ridge is often thought to limit bite forces in complete-denture wearers. Therefore, bite forces with mandibular implant-retained overdentures may depend on the degree of implant support. This study analyzed the effects of different degrees of...

journal_title：Journal of dental research

authors： Fontijn-Tekamp FA,Slagter AP,van't Hof MA,Geertman ME,Kalk W

更新日期：1998-10-01 00:00:00

abstract：:The sensitizing potential of three periodontal dressing materials was evaluated by the guinea pig maximization test. The results indicated a difference in the sensitization rate of the three materials. ...

journal_title：Journal of dental research

authors： Haugen E,Hensten-Pettersen A

更新日期：1978-11-01 00:00:00

abstract：:Much research has been devoted to the study of etched enamel, since it is critical to bonding. Currently, there are no precise data regarding the etched-enamel specific surface area. The aim of this study was to characterize, by two different methods, the surface of human dental enamel in vitro after being etched. It ...

journal_title：Journal of dental research

authors： Orellana MF,Nelson AE,Carey JP,Heo G,Boychuk DG,Major PW

更新日期：2008-06-01 00:00:00

abstract：:The distribution, genetic relatedness, and peptidase activity in hydrolyzing N-benzoyl-L-arginine-p-nitroanilide by Capnocytophaga species isolated from calculus- and non-calculus-formers were determined in this study. The proportion and prevalence of Capnocytophaga species were higher in plaque samples from the calcu...

journal_title：Journal of dental research

authors： Morita M,Yamamoto T,Watanabe T

更新日期：1991-07-01 00:00:00

abstract：:The effect of toothbrushes on soft tissue abrasion was measured using hamster cheek pouch tissue brushed mechanically for various intervals. The detection of protein removed during brushing was used as an index of tissue abrasion. The method was found to be sensitive in detecting the effects of brush load, number of s...

journal_title：Journal of dental research

authors： Alexander JF,Saffir AJ,Gold W

更新日期：1977-07-01 00:00:00

abstract：:Alendronate (ALN) is an antiresorptive agent widely used for the treatment of osteoporosis. Its suppressive effect on osteoclasts has been extensively studied. However, the effect of ALN on bone formation is not as clear as its effect on resorption. The objective was to determine the effect of short-term ALN on bone f...

journal_title：Journal of dental research

authors： Tanoue R,Koi K,Yamashita J

更新日期：2015-09-01 00:00:00

abstract：:Odontoblasts, with their strategic arrangement along the outermost compartment of the dentin-pulp complex, have been suggested to have sensory function. In addition to their primary role in dentin formation, growing evidence shows that odontoblasts are capable of sensing mechanical stimulation. Previously, we found th...

journal_title：Journal of dental research

authors： Won J,Vang H,Kim JH,Lee PR,Kang Y,Oh SB

更新日期：2018-08-01 00:00:00

abstract：:Temperature elevations were measured in the pulp chamber of full cast crown preparations during impression taking with modelling compound in copper bands. Uncontrolled flaming, controlled flaming, and water heating of the bands produced temperatures of 53, 44, and 41.5 C, respectively. The time involved in restoring t...

journal_title：Journal of dental research

authors： Grajower R,Kaufman E,Stern N

更新日期：1975-03-01 00:00:00

abstract：:Khat-chewing has been associated with oral lesions including oral cancer, but the mechanisms leading to their development are not known. We hypothesized that khat interferes with the physiological processes of the oral mucosa, such as cell proliferation and differentiation, and aimed at investigating the effects of kh...

journal_title：Journal of dental research

authors： Lukandu OM,Neppelberg E,Vintermyr OK,Johannessen AC,Costea DE

更新日期：2010-03-01 00:00:00

abstract：:Cross-sectional areas of the masseter, temporalis and medial, and lateral pterygoid muscles were determined in 16 subjects by means of computer tomography. In each subject three scans were made, intersecting the thickest part of the muscles at right angles to the fiber direction. The masseter and medial pterygoid musc...

journal_title：Journal of dental research

authors： Weijs WA,Hillen B

更新日期：1984-09-01 00:00:00