Abstract：
:Electrical stimuli at 1 Hz with pulse widths of 0.05, 0.1 and 1 ms with intensities from two to six times sensory threshold (2-6 T) were delivered to the lower lip. The reflex responses were monitored by surface electromyography of the ipsilateral masseter muscle. An excitatory response that was not preceded or followed by an inhibition could be evoked in seven out of ten subjects at intensities below 5 T at all pulse widths. A higher stimulus intensities, the excitation disappeared and/or was preceded by as short-latency inhibition (SLI) or a long-latency inhibition (LLI). The electrical threshold for the excitatory response was statistically lower than the SLI and LLI, especially when longer pulse widths wee used. Three subjects demonstrated a primarily excitatory response, whereas four had a more pronounced inhibitory response. It was concluded that separate populations of myelinated fibres may be responsible for the responses: the lowest-threshold fibres may elicit excitatory responses and fibres with higher thresholds may evoke inhibitory responses. Another possible explanation is that central spatial summation could be responsible for the opening of the inhibitory and excitatory central pathways. The excitatory response may be the result of a reflex pathway similar to that evoked by activation of periodontal mechanoreceptors, and could be responsible for the load compensation mechanisms during chewing and/or positioning of food. The inhibitory responses are well known, and are considered to be a protective reflex.
journal_name
Arch Oral Bioljournal_title
Archives of oral biologyauthors
Brodin P,Türker KSdoi
10.1016/0003-9969(94)90097-3subject
Has Abstractpub_date
1994-08-01 00:00:00pages
701-6issue
8eissn
0003-9969issn
1879-1506pii
0003-9969(94)90097-3journal_volume
39pub_type
杂志文章abstract：:The adherence of streptococci to hydroxyapatite spheroids (HAS) depended upon the strain used, the fermentable carbon source available during bacterial growth, the number of times a clinical isolate had been subcultured on laboratory media and the pre-treatment of the HAS. Sucrose greatly stimulated the secondary colo...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/0003-9969(83)90107-3
更新日期：1983-01-01 00:00:00
abstract：AIMS:Anomalies of tooth number may not be isolated conditions but may have wider associations in the development of the dentition including tooth size. This study aimed to examine links between hypodontia, supernumerary teeth and crown size, considering the effect on the development of the whole dentition and so increa...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/j.archoralbio.2008.05.016
更新日期：2009-12-01 00:00:00
abstract：:Recent reports characterizing the physiological properties of normal human labial acini are reviewed with particular emphasis on mechanisms related to fluid secretion. In contrast to the salivary glands of several experimental animals, human labial acinar cells do not appear to have a1-adrenergic receptors, substance ...
journal_title：Archives of oral biology
pub_type： 杂志文章,评审
doi：10.1016/s0003-9969(99)00044-8
更新日期：1999-05-01 00:00:00
abstract：:A series of unstimulated and stimulated saliva samples from healthy volunteers was tested for EGF by radioimmunoassay. Salivary EGF, like other salivary constituents, was secreted in a diurnal pattern. On stimulation the rate of EGF secretion doubled but the concentration fell by 70% because of dilution by salivary fl...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/0003-9969(90)90032-6
更新日期：1990-01-01 00:00:00
abstract：:A variable capacitance displacement transducer, previously employed for continuously monitoring movements of the rabbit mandibular incisor, was modified for use with the ferret mandibular canine. Comparing this tooth of limited growth with the tooth of continuous growth, similarities were seen in the reactions to extr...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/0003-9969(83)90177-2
更新日期：1983-01-01 00:00:00
abstract：OBJECTIVE:This case-control study aimed to investigate associations between craniofacial pain complaints, somatoform symptoms and chronic diseases. DESIGN:306 subjects were included in this study (174 patients and 132 healthy subjects). The evaluation consisted of demographic data, number of functional and nonfunction...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/j.archoralbio.2020.104892
更新日期：2021-02-01 00:00:00
abstract：:In a previous study, it was shown that tooth germs of neonatal homozygous parathyroid hormone-related protein (PTHrP)-knockout mice are penetrated or compressed by the surrounding alveolar bone, suggesting an important role for PTHrP in the formation and activation of osteoclasts around growing tooth germs. In order t...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/s0003-9969(02)00026-2
更新日期：2002-09-01 00:00:00
abstract：:The effect of a reduced functional dentition on the development of the mandibular disc in young rabbits was studied by measuring cell proliferation within the disc following tooth extraction. Maxillary and mandibular incisor teeth were extracted from 18 animals at 5 weeks of age. At 12 weeks the rabbits received 0.25 ...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/0003-9969(94)90003-5
更新日期：1994-09-01 00:00:00
abstract：OBJECTIVE:The aim of this study was to test the hypothesis that patients with persistent dentoalveolar pain disorder (PDAP) expresses somatosensory abnormalities through quantitative sensory testing (QST), when compared to healthy controls; and that individuals with PDAP do not have somatosensory alterations after appl...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/j.archoralbio.2015.02.027
更新日期：2015-07-01 00:00:00
abstract：OBJECTIVES:A resin infiltrant was employed for the treatment of active white spot lesions due to its ability to penetrate into the enamel pores and prevent the progression of the lesion. However, limited information is available about its mechanical effect on different artificial enamel lesions as well as on its resist...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/j.archoralbio.2018.07.011
更新日期：2018-11-01 00:00:00
abstract：OBJECTIVE:Low-level laser therapy (LLLT) has been reported to be responsible for promoting photostimulatory and photobiomodulatory effects in vivo and in vitro, stimulating cell growth, increasing cell metabolism, improving cell regeneration and invoking an anti-inflammatory response. This study was performed in order ...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/j.archoralbio.2012.02.012
更新日期：2012-08-01 00:00:00
abstract：:An immunofluorescence study of the expression of keratin 14 (K14) during the formation of filiform papillae was performed and the progress of keratinization of the epithelium of the rat tongue was monitored on semi-ultrathin sections by laser-scanning microscopy. Differential interference contrast (DIC) images were al...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/s0003-9969(03)00118-3
更新日期：2003-08-01 00:00:00
abstract：OBJECTIVE:To investigate the antimicrobial effect of alpha-bisabolol and tea tree oil alone and in combination against the halitosis-associated Gram-positive bacillus Solobacterium moorei. DESIGN:The inhibitory activity of alpha-bisabolol and tea tree oil against the reference strain S. moorei CCUG39336 and four clini...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/j.archoralbio.2012.08.001
更新日期：2013-01-01 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：:This study was undertaken to reveal detailed changes in fluoride distribution at different developmental stages of upper incisor enamel under various fluoride administration regimes. Four groups of Wistar rats received water containing 0, 25, 50 and 100 parts/10(6) fluoride respectively for 10 weeks. Five different en...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/0003-9969(88)90119-7
更新日期：1988-01-01 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：:Micelles represent macromolecular structures in saliva and the aim of this study was to identify salivary proteins that occur in these globular particles. Micelles were isolated from whole saliva (WS) collected from three individuals and analysed in different experiments. Samples were subjected to polyacrylamide gel e...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/j.archoralbio.2003.11.007
更新日期：2004-05-01 00:00:00
abstract：:Homologous tooth transplants evoke immunogenic rejection against antigens within donor periodontal ligaments cells and ground substance. Eight maxillary incisors of 6 juvenile animals were extracted, crowns and pulps removed by gutta percha; the roots were incubated serially in enzyme solutions and glutaraldehyde at 3...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/0003-9969(82)90128-5
更新日期：1982-01-01 00:00:00
abstract：OBJECTIVE:To test the hypothesis that experimental occlusal interferences increase the nerve growth factor (NGF) levels in periodontal tissues and cause an up-regulation of preprotachykinin-A (PPTA) mRNA. BACKGROUND:NGF is related to hyperalgesia and inflammation. PPTA mRNA, a primer of substance P, is a possible fact...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/j.archoralbio.2010.08.007
更新日期：2010-12-01 00:00:00
abstract：:The functioning lower jaw is a prerequisite of the ongoing secondary chondrogenesis in the mammalian mandibular condyle. Does the articular function also initiate secondary chondrogenesis in the mandible? The angular process of the fetal mammalian mandible possesses a large secondary cartilage without any apparent art...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/0003-9969(93)90154-e
更新日期：1993-01-01 00:00:00
abstract：:In the hard palate, sagittally oriented capillary loops, 8-10 microns in diameter and 70-250 microns high, extended perpendicularly from a subcapillary plexus to the connective tissue papillae. These loops formed a well-delineated vascular spine beneath the rugal crests. Capillary loop density was estimated to be 200-...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/0003-9969(91)90088-c
更新日期：1991-01-01 00:00:00
abstract：:Porphyromonas gingivalis, an important pathogen in periodontitis, produces extracellular vesicles that aggregate with Actinomyces viscosus cells. A 40-kDa outer membrane protein (OMP)-coding gene from P. gingivalis was cloned and the protein was found to be localized in these vesicles. The recombinant 40-kDa OMP did n...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/0003-9969(92)90078-m
更新日期：1992-09-01 00:00:00
abstract：:The peroxidase activity in human whole saliva is due to salivary peroxidase and, in some cases, myeloperoxidase; it is usually determined by spectrophotometric methods based on the rate of oxidation of chromogen substrates. Thiocyanate ion, a normal component of saliva, interferes with these kinetic assays by competin...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/0003-9969(86)90095-6
更新日期：1986-01-01 00:00:00
abstract：:Various fruit juices with relatively low pH are known to have erosive effects on human tooth enamel in a reasonably short time. Honey, also with a relatively low pH, could do the same, but scanning electron microscopy showed no erosion of enamel by honey over a period of 30 min, neither did Knoop microhardness tests s...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/0003-9969(94)90110-4
更新日期：1994-02-01 00:00:00
abstract：:Parotid salivation was stimulated by infusion of bethanechol chloride into anaesthetized brushtail possums to ascertain maximal flow rates, salivary composition and dietary adaptations of salivary function. Secretion rates for one gland ranged from 5.3 +/- 0.16 to 84.3 +/- 3.20 microliters/min (2.4 +/- 0.07 to 37.8 +/...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/0003-9969(94)90127-9
更新日期：1994-04-01 00:00:00
abstract：:Most authorities agree that the hydrodynamic theory of dentine sensitivity best explains the stimulus-response relations of most painful stimuli. However, as the usual hydrodynamic stimuli are so different, it has been impossible to compare them. The equivalency of hydrodynamic stimuli can be evaluated from measuremen...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/s0003-9969(96)00059-3
更新日期：1996-11-01 00:00:00
abstract：:There was a statistically significant shift towards increased proportions of type I Langerhans cells (containing many Langerhans-cell granules) and reduced proportions of both type II Langerhans cells (containing few granules) and indeterminate cells in diseased oral epithelium when compared to healthy oral epithelium...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/0003-9969(86)90004-x
更新日期：1986-01-01 00:00:00
abstract：INTRODUCTION:Intact neural supply is necessary for tooth eruption. Sympathetic denervation accelerates or decelerates the eruption rate depending on the tooth condition (intact or injured). The aim of this study is to reexamine the role of the sympathetic innervation, through the observation of the effects of pre or po...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/j.archoralbio.2018.02.003
更新日期：2018-05-01 00:00:00
abstract：:Epidermal growth-factor receptor (EGF-r) has been identified on basilar cells of stratified squamous epithelia and skin adnexa in man. Recent studies have mapped EGF-r to various oral cells in animals; however, complete mapping of EGF-r in normal human oral mucosa has not been done. Normal tissues from eight sites in ...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/0003-9969(93)90079-2
更新日期：1993-09-01 00:00:00
abstract：:Histatins are human salivary antifungal proteins that are prone to extensive enzymatic degradation upon their release into the oral cavity. Histatin proteolysis, leading to the disappearance of the intact protein can be expected to have functional consequences. Histatin 5, comprising 24 residues, is the smallest of th...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/j.archoralbio.2006.06.005
更新日期：2006-12-01 00:00:00
