Abstract：
:It has often been hypothesized that a large tongue leads to an enlargement of the mandible and therefore contributes to the development of mandibular prognathism. We examined (1) whether the tongue volume in human subjects with mandibular prognathism was larger than that in subjects with good occlusion and (2) whether the tongue volume and the pharyngeal capacity correlated with the morphological characteristics of dento-skeletal structures. Magnetic resonance images of the tongue and its surrounding structures were recorded for female adult volunteers with good occlusion (control group, n = 10) and patients with mandibular prognathism (test group, n = 16). Lateral cephalograms were obtained for the patients. No significant differences were determined for the tongue volume or the pharyngeal capacity between the two groups. The tongue volume did not correlate with the pharyngeal capacity (r = 0.280, p = 0.166). The tongue volume correlated with the facial angle (r = 0.548, p = 0.028), the Y-axis (r = 0.539, p = 0.031), and the angle nasion-A point-pogonion (r = 0.540, p = 0.031). These results suggest that the tongue volume is accounted for by the combined horizontal and vertical location of the chin and symphysis, but do not support the conventional clinical surmise that large tongue volume is inherent in patients with mandibular prognathism.
journal_name
J Dent Resjournal_title
Journal of dental researchauthors
Yoo E,Murakami S,Takada K,Fuchihata H,Sakuda Mdoi
10.1177/00220345960750120701subject
Has Abstractpub_date
1996-12-01 00:00:00pages
1957-62issue
12eissn
0022-0345issn
1544-0591journal_volume
75pub_type
杂志文章abstract：:A double-blind randomized clinical trial was performed in 6- to 7-yr-old schoolchildren to evaluate, in a 30-mo period, whether the caries increment on the distal surface of the second primary molars adjacent to permanent first molars sealed with fluoride release compounds would be lower with respect to those adjacent...
journal_title：Journal of dental research
pub_type： 杂志文章,随机对照试验
doi：10.1177/0022034514535808
更新日期：2014-07-01 00:00:00
abstract：:Periodontitis is a chronic inflammatory disease affecting oral tissues. The continuous, high production of cytokines by host cells triggered by periodontopathogens is thought to be responsible for the destruction of tooth-supporting tissues. Macrophages play a critical role in this host inflammatory response to period...
journal_title：Journal of dental research
pub_type： 杂志文章
doi：10.1177/154405910608500306
更新日期：2006-03-01 00:00:00
abstract：:The uptake patterns of 90Sr in developing rat molar enamel were studied in vivo and in vitro. Autoradiographic methods were used that preclude loss or translocation of tracers associated with water-soluble compounds in the sections. In eight-day-old rats injected with the tracer, 90Sr uptake in the enamel was signific...
journal_title：Journal of dental research
pub_type： 杂志文章
doi：10.1177/00220345800590121301
更新日期：1980-12-01 00:00:00
abstract：:This study demonstrated a correlation between silicon x-ray counts and area fractions of adherent porcelain as determined by point-counting. This correlation has allowed a method to be devised for measuring area fractions of porcelain adherent to porcelain-fused-to-metal (PFM) fracture surfaces. The described method, ...
journal_title：Journal of dental research
pub_type： 杂志文章
doi：10.1177/00220345830620081801
更新日期：1983-08-01 00:00:00
abstract：:The aim of this study was to investigate the involvement of autoimmune reactions to native and post-translationally modified extracellular matrix components in the pathogenesis of periodontitis. Sera from individuals with aggressive periodontitis (AgP, n = 25), chronic periodontitis (CP, n = 14), and gingivitis (G, n ...
journal_title：Journal of dental research
pub_type： 杂志文章
doi：10.1177/0022034510381903
更新日期：2010-12-01 00:00:00
abstract：:Due, in part, to the unique structure of the tooth, dental pain is initiated via distinct mechanisms. Here we review recent advances in our understanding of inflammatory tooth pain and discuss 3 hypotheses proposed to explain dentinal hypersensitivity: The first hypothesis, supported by functional expression of temper...
journal_title：Journal of dental research
pub_type： 杂志文章,评审
doi：10.1177/0022034513501877
更新日期：2013-11-01 00:00:00
abstract：:Reporting the economic burden of oral diseases is important to evaluate the societal relevance of preventing and addressing oral diseases. In addition to treatment costs, there are indirect costs to consider, mainly in terms of productivity losses due to absenteeism from work. The purpose of the present study was to e...
journal_title：Journal of dental research
pub_type： 杂志文章
doi：10.1177/0022034515602879
更新日期：2015-10-01 00:00:00
abstract：:The pathophysiology of painful temporomandibular disorders is not fully understood, but evidence suggests that muscle pain modulates motor function in characteristic ways. This study tested the hypothesis that activation of nociceptive muscle afferent fibers would be linked to an increased excitability of the human ja...
journal_title：Journal of dental research
pub_type： 杂志文章
doi：10.1177/154405910208100915
更新日期：2002-09-01 00:00:00
abstract：:A detailed understanding of the complexity of root canal systems is imperative to ensure successful root canal preparation. The aim of this study was to evaluate the potential and accuracy of a three-dimensional, non-destructive technique for detailing root canal geometry by means of high-resolution tomography. The an...
journal_title：Journal of dental research
pub_type： 杂志文章
doi：10.1177/00220345000790060901
更新日期：2000-06-01 00:00:00
abstract：:The aim of this study was to assess the changes occurring in subgingival biofilm composition and in the periodontal clinical parameters of subjects with periodontitis and type 2 diabetes mellitus (DM) treated by means of scaling and root planing (SRP) only or combined with systemic metronidazole (MTZ) and amoxicillin ...
journal_title：Journal of dental research
pub_type： 杂志文章,随机对照试验
doi：10.1177/0022034516639274
更新日期：2016-07-01 00:00:00
abstract：:Local anesthetic agents may be classified according to their intrinsic anesthetic potency and duration of activity. Procaine and chloroprocaine are relatively weak, short-acting drugs. Lidocaine, mepivacaine, and prilocaine represent agents of intermediate potency and duration of action. Tetracaine, bupivacaine, and e...
journal_title：Journal of dental research
pub_type： 杂志文章
doi：10.1177/00220345810600080903
更新日期：1981-08-01 00:00:00
abstract：:Our long-term objective is to devise methods to improve osteotomy site preparation and, in doing so, facilitate implant osseointegration. As a first step in this process, we developed a standardized oral osteotomy model in ovariectomized rats. There were 2 unique features to this model: first, the rats exhibited an os...
journal_title：Journal of dental research
pub_type： 杂志文章,多中心研究
doi：10.1177/0022034517742631
更新日期：2018-04-01 00:00:00
abstract：:Priming with tumor antigens is one of the most important strategies in cancer immunotherapy. To enhance tumor antigenicity, OK-432, a streptococcal preparation, was coupled to squamous cell carcinoma (KLN-205) by means of a 0.2% glutaraldehyde method. The purpose of this study was to investigate whether OK-432-conjuga...
journal_title：Journal of dental research
pub_type： 杂志文章
doi：10.1177/154405910308200813
更新日期：2003-08-01 00:00:00
abstract：:Vitamin D, an anti-inflammatory mediator, has potential benefits for physical and oral health. Although it is produced endogenously, some individuals have a greater need for dietary and supplemental sources. This repeated-measures cross-sectional study assessed associations between total vitamin D intake and periodont...
journal_title：Journal of dental research
pub_type： 杂志文章
doi：10.1177/0022034513495239
更新日期：2013-08-01 00:00:00
abstract：:To understand the role of betel quid (BQ) in the pathogenesis of oral submucous fibrosis (OSF) and oral cancer, we used DNA damage, cytotoxicity, and cell proliferation assays to study the pathobiological effects of aqueous extracts of three BQ constituents [betel nut (Areca catechu, BN), inflorescence of Piper betle ...
journal_title：Journal of dental research
pub_type： 杂志文章
doi：10.1177/00220345940730050501
更新日期：1994-05-01 00:00:00
abstract：:Tooth enamel is the most highly mineralized tissue in vertebrates. Enamel crystal formation and elongation should be well controlled to achieve an exceptional hardness and a compact microstructure. Enamel matrix calcification occurs with several matrix proteins, such as amelogenin, enamelin, and ameloblastin. Among th...
journal_title：Journal of dental research
pub_type： 杂志文章
doi：10.1177/0022034514547272
更新日期：2014-10-01 00:00:00
abstract：:The development of predictive and rapid methods for the assessment of the anticaries activity of topical fluorides has been a long-standing objective of caries researchers. These methods can provide useful benefits in a number of applications, ranging from the identification of novel agents to progress into clinical t...
journal_title：Journal of dental research
pub_type： 杂志文章,评审
doi：10.1177/002203459207100S19
更新日期：1992-04-01 00:00:00
abstract：:Cytotoxicity of fine cut amalgam was persistent until 24 hours after trituration in vitro, whereas cytotoxicity of spherical amalgam diminished more quickly. Increasing mercury content in spherical amalgam increased cytotoxicity. Possible reactions for the diminution of cytotoxicity of amalgams with time are discussed...
journal_title：Journal of dental research
pub_type： 杂志文章
doi：
更新日期：1975-03-01 00:00:00
abstract：:The adsorption isotherms of benzoic acid on synthetic hydroxyapatite (containing about 1.5 monolayers of physisorbed water) were studied from ethanol, dimethylsulfoxide, p-dioxane, methylene chloride, and benzene to discern the role of solvent in the process. The adsorption is reversible from the first three solvents ...
journal_title：Journal of dental research
pub_type： 杂志文章
doi：10.1177/00220345860650051601
更新日期：1986-05-01 00:00:00
abstract：:The type of attachment that is used in oral rehabilitation by means of implant-retained mandibular overdentures may influence the retention and the stability of the denture. In this study, we examined the hypothesis that a better retention and stability of the denture improve the oral function. Eighteen edentulous sub...
journal_title：Journal of dental research
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1177/154405910208100305
更新日期：2002-03-01 00:00:00
abstract：:Autoimmune responses to heat-shock protein 60 (HSP60) contribute to the progression of atherosclerosis, whereas immunization with HSP60 may induce atheroprotective responses. We assessed the capacity of an atheroprotective vaccine that targeted a recombinant HSP60 from Porphyromonas gingivalis (rGroEL) to induce a pro...
journal_title：Journal of dental research
pub_type： 杂志文章
doi：10.1177/0022034514523784
更新日期：2014-04-01 00:00:00
abstract：:Limited cure depth is a drawback of light-activated composites. We hypothesize that curing light transmission and cure depth are influenced by monomer reactivity and filler/resin refractive index mismatch. Light transmission throughout cure was recorded for composites based on strontium (refractive index 1.51) or bari...
journal_title：Journal of dental research
pub_type： 杂志文章
doi：10.1177/154405910808700115
更新日期：2008-01-01 00:00:00
abstract：:Chemical bonding between dental porcelains and alloys results from interdiffusion of porcelain and metal ions. An interfacial diffusion zone is created which, most likely, has properties different from those of bulk materials. The changed interface might affect experimental measurements of thermo-mechanical strain. To...
journal_title：Journal of dental research
pub_type： 杂志文章
doi：10.1177/00220345830620051701
更新日期：1983-05-01 00:00:00
abstract：:The number of molars selected for prophylactic removal varies widely among general dental practitioners and oral surgeons. To understand the basis for such variations, we investigated two hypotheses: (1) Individual judgment strategies will differ concerning the use of cues (items of information), and (2) few dentists ...
journal_title：Journal of dental research
pub_type： 杂志文章
doi：10.1177/00220345000790121101
更新日期：2000-12-01 00:00:00
abstract：:Cell therapies utilizing mesenchymal stem cells (MSCs) could overcome limitations of traditional treatments for reconstructing craniofacial tissues. This large-scale study explored a standardized methodology for the isolation and clinical-scale expansion of alveolar bone marrow-derived MSCs (aBMSCs). We harvested 103 ...
journal_title：Journal of dental research
pub_type： 杂志文章
doi：10.1177/0022034513510530
更新日期：2014-01-01 00:00:00
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
pub_type： 杂志文章
doi：10.1177/00220345810600090601
更新日期：1981-09-01 00:00:00
abstract：:Erupting first permanent molars of 5 1/2 to 6 1/2 year-olds are eminently suited for the clinical testing of potential caries-inhibiting techniques. Due to the rapid onset of caries in these teeth, accurate monitoring of new materials/regimes can be instituted and meaningful data obtained within one year of trial comm...
journal_title：Journal of dental research
pub_type： 临床试验,杂志文章
doi：10.1177/002203457705600301011
更新日期：1977-10-01 00:00:00
abstract：:The work described considers the effects on calcified tissues of those concentrations of fluoride which are not overtly cyto-toxic, i.e., in the general region of up to 1-2 mumol/L. Plasma fluoride concentrations or those of the cellular environment are considered rather than dietary levels. The effect of fluoride ion...
journal_title：Journal of dental research
pub_type： 杂志文章,评审
doi：10.1177/00220345900690S134
更新日期：1990-02-01 00:00:00
abstract：:Samples of dental plaque obtained from the interproximal tooth surfaces of seven young men showed considerable variation in the prevalence and anatomic site distribution of the potentially cariogenic microorganism S mutans. Multiple application of 10% SnF2 topical solution and saline solution delivered to interproxima...
journal_title：Journal of dental research
pub_type： 杂志文章
doi：10.1177/00220345770560010301
更新日期：1977-01-01 00:00:00
abstract：:Elemental analysis of two precious alloyceramic systems revealed the accumulation of Sn atoms within the interaction zone of couples subjected to a range of metal oxidation time; and varying total firing times. The source of Sn atoms which accumulated within the interaction zone was the opaque porcelain layer which co...
journal_title：Journal of dental research
pub_type： 杂志文章
doi：10.1177/00220345770560090301
更新日期：1977-09-01 00:00:00
