Abstract：
:Inhibitory jaw reflexes are believed to be important for protecting the teeth and temporo-mandibular structures from damage during sudden or forceful biting or mastication. Accordingly, alterations in these reflexes are sometimes implicated in aetiologies proposed for oro-facial pain syndromes, although the association is not well-established. We now aim to develop a method for quantifying objectively inhibitory jaw reflexes evoked by natural tooth contact. In the longer term, this may provide a new approach to examining the association of altered reflexes and clinical conditions. Eighteen subjects gave their written, informed consent, and were recruited to participate in this study. They were instructed to clench their teeth together in response to visual cues. They performed two such tasks twenty times: from the jaw postural position and from a more open position with the jaws set 10mm apart. Both tasks produced a rapid rise then stabilisation in electromyographic activity in the masseter muscle. This was always interrupted by a large inhibitory reflex starting 11.1±1.5 ms (mean±SD) after tooth contact. The inhibitions produced during the second task were similar but of significantly longer duration (24.3±6.4 vs 18.4±6.5 ms, P=0.0003, paired t-test) and greater magnitude (measured as an integral of the waveform: 1577±478 vs 1279±425%.ms, P=0.007, paired t-test). Interestingly, in a minority (13%) of the tasks, a second inhibition with a longer latency (50.9±0.9 ms) was also observed. Thus reflex responses in the masseter muscle to natural tooth contact usually consist of single inhibitory periods. In this respect they are like those induced by externally applied tooth pushing although occasionally there is a second inhibition, reminiscent of that seen with externally applied tooth taps.
journal_name
Arch Oral Bioljournal_title
Archives of oral biologyauthors
Ainine S,Mason AG,Cadden SWdoi
10.1016/j.archoralbio.2011.02.012subject
Has Abstractpub_date
2011-09-01 00:00:00pages
855-63issue
9eissn
0003-9969issn
1879-1506pii
S0003-9969(11)00058-6journal_volume
56pub_type
杂志文章abstract：:Dental fluorosis was evaluated by a classification system, previously shown to be sensitive, and skeletal changes evaluated by bone maturity and structure. Dental fluorosis was more severe in posterior than in anterior teeth in both jaws irrespective of fluoride concentration of the drinking water. There appeared to b...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/0003-9969(82)90004-8
更新日期：1982-01-01 00:00:00
abstract：:Radially directed inter-odontoblastic collagen fibres were observed in ultra-thin sections of the radicular pulp/predentine complex of rat molars. Bundles of fibres crossed the distal junctional complexes of the odontoblasts, went through the whole thickness of the predentine and were incorporated into the mineralized...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/0003-9969(91)90082-6
更新日期：1991-01-01 00:00:00
abstract：OBJECTIVE:The aim of this study was to evaluate whether fluconazole (FLZ) could affect the bioactivity and cellular structure of Candida albicans or Candida glabrata biofilms grown in the presence of FLZ. MATERIALS AND METHODS:Tokens were fabricated using poly(methylmethacrylate) resin (PMMA) in a hot water bath. Sali...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/j.archoralbio.2011.04.006
更新日期：2011-11-01 00:00:00
abstract：:The classical hydrodynamic theory implicated fluid movement as a transducing mechanism in the production of dental sensitivity. This theory assumes that sensitive dentine must be permeable. Various measurements of dentine permeability are discussed, including: (1) factors that influence diffusive permeation across den...
journal_title：Archives of oral biology
pub_type： 杂志文章,评审
doi：10.1016/0003-9969(94)90191-0
更新日期：1994-01-01 00:00:00
abstract：OBJECTIVE:Temporomandibular joint osteoarthritis (TMJ-OA) is a degenerative disease characterized by permanent cartilage loss. Articular cartilage is maintained in a low-oxygen environment. The chondrocyte response to hypoxic conditions involves expression of hypoxia inducible factor 1α (HIF-1α), which induces chondroc...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/j.archoralbio.2016.10.028
更新日期：2017-01-01 00:00:00
abstract：OBJECTIVE:To compare the tissue reactions to implanted collagen scaffolds in the palate and the skin of rats. DESIGN:Crosslinked collagen scaffolds were implanted submucoperiosteally in the palate, and subcutaneously on the skull and on the back of 25 rats and evaluated after up to 16 weeks. On H&E-stained sections, t...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/j.archoralbio.2007.11.003
更新日期：2008-04-01 00:00:00
abstract：:An appropriate model was created by the paraperiosteal injection of mustard oil (20% allyl isothiocyanate dissolved in mineral oil) into the periarticular temporomandibular tissue of anaesthetized rats. Inflammation was assessed by the plasma extravasation of Evans' blue dye bound to plasma protein. This was confirmed...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/0003-9969(92)90026-5
更新日期：1992-01-01 00:00:00
abstract：:A large earthquake (8-9 on the Richter scale) and a series of aftershocks took place on 2 March 1985 in Santiago, Chile. The characteristics of over 22,000 births registered in three public hospitals in the same year were reviewed. A significant increase in the rate of facial clefts was found; 2.01 per 1000 births in ...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/0003-9969(94)00146-3
更新日期：1995-01-01 00:00:00
abstract：:An electrophoretic method capable of analysing a small volume (5-10 microliter) of human palatine saliva without prior concentration was developed by combining the high resolution of isoelectric focusing in agarose with a highly sensitive silver protein staining method. Human palatine saliva exhibited 23 protein bands...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/0003-9969(83)90080-8
更新日期：1983-01-01 00:00:00
abstract：OBJECTIVE:The aim of this study was to evaluate the effects of ZnCl(2) on plaque-growth and vitality pattern of dental biofilm and to determine the optimum zinc concentration for the inhibition of plaque formation. DESIGN:Data were collected from nine volunteers for whom a special-designed acrylic appliance was prescr...
journal_title：Archives of oral biology
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.archoralbio.2011.10.001
更新日期：2012-04-01 00:00:00
abstract：:Five well-characterized foods were used to compare two systems for estimating the cariogenic potential of food: human plaque-acidity using interdental metallic touch electrodes, and cariogenicity testing in rats. Both systems identified the same food as the least cariogenic or acidogenic food and identified the same t...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/0003-9969(85)90089-5
更新日期：1985-01-01 00:00:00
abstract：OBJECTIVE:To clarify whether over-eruption of the mandibular third molar can disturb chewing movement. METHODS:Eighteen patients with a unilateral mandibular over-erupted third molar confirmed by both study cast observation and T-scan occlusal detection were selected from a sample of patients with complaints of tempor...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/j.archoralbio.2017.06.012
更新日期：2017-10-01 00:00:00
abstract：:These were characterized in stimulated saliva from 21 healthy volunteers using antibodies specific for human tissue-type plasminogen activator (t-PA) or urokinase. After pre-incubation with immunoglobulins, with and without specific antibodies, the fibrinolytic activity was assayed on fibrin plates containing plasmino...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/0003-9969(87)90097-5
更新日期：1987-01-01 00:00:00
abstract：BACKGROUND:Sophora flavescens AITON (Leguminosae) is a typical traditional Korean medical herb considered to exhibit antibacterial, anti-inflammatory, and antipyretic effects, and is also used for the treatment of skin and mucosal ulcers, sores, diarrhea, gastrointestinal hemorrhage, arrhythmia, and eczema. OBJECTIVE ...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/j.archoralbio.2016.04.001
更新日期：2016-08-01 00:00:00
abstract：:In this present study we have tested the impact of porfimer sodium (Photofrin, AXCAN PHARMA Inc., Quebec, Canada) photoactivated disinfection (PD) on cells of Streptococcus intermedius in suspension. In order to provide basic data to support future clinical studies of PD in dentistry the study used exposure to Quartz-...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/j.archoralbio.2010.07.003
更新日期：2010-10-01 00:00:00
abstract：:Fluorescently labelled latex microspheres (0.01, 0.1 and 1.0 micron dia.) were used to establish whether oral epithelial cells could exhibit an endocytic function. Oral mucosa biopsies were incubated in organ culture at 37 degrees C for 20 h with one of the three sizes of fluorescent microspheres in the medium. Tissue...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/s0003-9969(99)00027-8
更新日期：1999-06-01 00:00:00
abstract：:The interaction between proteins and cell receptors is related to tissue homeostasis such as in salivary glands. In this respect, alterations in hormone levels caused by hyperglycaemic conditions may interfere with this interaction, intensifying the damage caused by diabetes mellitus. Hormone replacement therapy is an...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/j.archoralbio.2011.03.014
更新日期：2011-10-01 00:00:00
abstract：OBJECTIVES:The aim of the present study was to evaluate the effect of two different dosages of alendronate on induced orthodontic movement in an experimental model involving rats with osteoporosis following ovariectomy. DESIGN:Female Wistar rats (Rattus norvegicus) eight weeks of age were divided into four groups (n=1...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/j.archoralbio.2015.02.003
更新日期：2015-05-01 00:00:00
abstract：:The histochemical muscle-fibre composition of the anterior and posterior belly of the human digastric muscle was analysed in young male adults. Both bellies, of differing embryological origin and supplied by different cranial nerves, showed a fibre composition similar to that of normal limb and trunk muscles. Type I, ...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/0003-9969(82)90054-1
更新日期：1982-01-01 00:00:00
abstract：OBJECTIVE:Tenascin is a large extracellular matrix glycoprotein that plays specific role in cell matrix interaction. This protein is mainly attracted because of its oncofetal predominance expression at epithelial-mesenchymal interaction and also been associated with inflammatory response. Thus the aim was to study the ...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/j.archoralbio.2010.11.020
更新日期：2011-07-01 00:00:00
abstract：:Periapical granulomas were induced, with a success rate of about 60% (66 granulomas produced out of 109 roots treated) in mandibular premolars. The average wet weight of the granulomas, 46.1 +/- 34.5 mg (mean +/- SD, n = 22), was sufficient to allow individual specimens to be used for most of the biochemical analyses....
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/0003-9969(89)90151-9
更新日期：1989-01-01 00:00:00
abstract：:The crown and root morphology, and bilateral occurrence of human deciduous lower first molars that exhibited a triangular occlusal outline, taken from excavated samples of Japanese, Jomonese and Iraqi origin, were investigated. The crowns of triangular teeth had smaller mesiodistal and larger buccolingual diameters th...
journal_title：Archives of oral biology
pub_type： 历史文章,杂志文章
doi：10.1016/0003-9969(95)00131-x
更新日期：1996-04-01 00:00:00
abstract：:The activity of 6-phosphofructo-1-kinase (PFK-1), an important regulatory enzyme of glycolysis, was determined after injection of the sialagogue pilocarpine. The fructose-2,6-bisphosphate content of the glands and 6-phosphofructo-2-kinase (PFK-2) activity were also measured. The increase in PFK-1 activity after piloca...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/0003-9969(92)90104-g
更新日期：1992-01-01 00:00:00
abstract：BACKGROUND:Variances in fibroblasts' α2β1 integrin intensity may lead to altered adhesion to type I collagen and consequently to suppression of phagocytosis which may be one of the mechanisms for drug induced gingival overgrowth. The present study aimed to evaluate the genotype and allele frequencies of α2 integrin +80...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/j.archoralbio.2013.12.003
更新日期：2014-03-01 00:00:00
abstract：:Smears of buccal mucosa, dorsal surface of the tongue and floor of mouth were taken from 10 patients with histologically confirmed oral lichen planus and 12 healthy age- and sex-matched controls. In buccal smears, no significant differences in cytoplasmic and nuclear areas were observed between lesional, adjacent non-...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/0003-9969(95)00106-9
更新日期：1996-01-01 00:00:00
abstract：OBJECTIVE:Nonsyndromic cleft lip with or without cleft palate (NSCL/P) is a birth defect for which several genes susceptibility genes been proposed. Consequently, it has been suggested that many of these genes belong to common inter-related pathways during craniofacial development gene-gene interaction. We evaluated th...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/j.archoralbio.2018.04.009
更新日期：2018-07-01 00:00:00
abstract：OBJECTIVE:Replacement teeth in reptiles and mammals develop from a successional dental lamina. In monophyodont (single generation) species such as the mouse, no successional lamina develops. We have selected a reptilian monophyodont species - the Veiled Chameleon (Chamaeleo calyptratus) - to investigate whether this is...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/j.archoralbio.2012.10.019
更新日期：2013-02-01 00:00:00
abstract：:The localization of cathepsin L and rat salivary cystatin-3 (RSC-3) in rat osteoclasts (rat femoral and alveolar bones) treated with or without E-64 (control) was examined immunocytochemically. In osteoclasts pretreated with E-64, immunoreactivity for cathepsin L was very weak extracellularly compared to that in the c...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/s0003-9969(97)00003-4
更新日期：1997-04-01 00:00:00
abstract：OBJECTIVE:Accumulating evidence suggests an association between periodontitis and several systemic diseases, such as atherosclerosis. In the lesions of these diseases, nucleotide-binding domain leucine-rich repeat-containing protein 3 (NLRP3), apoptosis-associated speck-like protein containing a caspase activation and ...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/j.archoralbio.2019.104625
更新日期：2020-02-01 00:00:00
abstract：:Cell shape in salivary glands is affected by mechanical forces. In the acini and ducts cell shape is modified by the contractions of the myoepithelial cells in both the secretory and ductal portions of the glands. At the organ level shape changes are due to muscle contraction during mastication, food intake and speech...
journal_title：Archives of oral biology
pub_type： 杂志文章,评审
doi：
更新日期：1999-05-01 00:00:00
