Abstract：
:The abrasiveness of food is a key determinant in the rate of physiological attrition (dental wear) in humans. With increasing food processing through time, the rate of physiological dental wear in human teeth has decreased markedly. Many consider such wear to be beneficial to oral health and that insufficient wear may result in impaction of the third molars. If enhanced extraoral food processing provides an evolutionary advantage, then it is possible that agenesis of the redundant third molar may follow. One of the aims here was to examine impaction and agenesis of the third molars in four populations of varying antiquity and hence varying dental-wear rates. Paradoxically, whilst there is a decrease in the rate of dental wear with modernity, there is also an increasing prevalence of advanced dental wear due to prolongation of the lifespan of the human dentition. As the effect of dental wear on the curve of Spee was unknown, a second aim was to examine it in an archaeological population with a high rate of dental wear. The results showed an increase in non-eruption and impaction of the third molars with modernity, but did not demonstrate a significant increase in the rate of agenesis. The time period over which impaction and agenesis could be discerned was of the order of 600 years and this may not be sufficient to observe adaptive changes at the genetic level in humans. In molar teeth there was no clear indication of maintenance of the curve of Spee with dental wear. This has potential implications on the design of prostheses for the worn dentition.
journal_name
Arch Oral Bioljournal_title
Archives of oral biologyauthors
Sengupta A,Whittaker DK,Barber G,Rogers J,Musgrave JHdoi
10.1016/s0003-9969(99)00095-3subject
Has Abstractpub_date
1999-11-01 00:00:00pages
925-34issue
11eissn
0003-9969issn
1879-1506pii
S0003-9969(99)00095-3journal_volume
44pub_type
历史文章,杂志文章abstract：:Pulp tissues isolated from rats treated with either colchicine (0.5, 0.75 or 1.0 mg/kg) or beta-lumicolchicine (1.0 mg/kg) for 24 h were incubated in Tyrode buffer. Prostaglandin (PG) I2 and thromboxane (TX) A2 released into the medium were determined by radioimmunoassay as their stable metabolites, 6-keto-PGF1 alpha ...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/0003-9969(88)90063-5
更新日期：1988-01-01 00:00:00
abstract：:The response to stimulation of the parasympathetic innervation to parotid or submandibular glands of reserpinized rats was altered from that of untreated rats. Thus, acute reserpinization, like other types of sympathectomy, resulted in increase in volume of parasympathetically-evoked parotid or submandibular saliva wh...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/0003-9969(84)90040-2
更新日期：1984-01-01 00:00:00
abstract：:This enzyme activity was examined in bone cells cultured for 8-10 days; the calcium concentration was 1.87 +/- 0.05 (n = 10) mM in the control medium and 0.34 +/- 0.02 (n = 10) mM in the low-calcium medium. The activity was significantly lower in the low-calcium group than in the control (p less than 0.01). The cytoso...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/0003-9969(92)90074-i
更新日期：1992-09-01 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：:Dental follicle has been implicated as the origin of alveolar bone, cementum and periodontal ligament, but there is no direct evidence of their cellular lineage. The present pilot study was designed to characterize the phenotype of cultured cells obtained from the dental follicle of neonatal mouse molars. Developing m...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/s0003-9969(99)00033-3
更新日期：1999-09-01 00:00:00
abstract：:Albumin and alpha 2-macroglobulin were analysed in gingival fluid collected by filter paper strips from 6 volunteers before, during and after 10 days of dental plaque accumulation. The two proteins were also determined in samples of venous blood at the beginning of abstention from tooth brushing and 10 days later. A n...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/0003-9969(90)90107-l
更新日期：1990-01-01 00:00:00
abstract：:Sixteen consecutively-born monkeys were used in a longitudinal study to determine the changes occurring in the total number of bacteria in the palatal grooves of the upper left first deciduous molar teeth, following the introduction of a sucrose-based diet. The total number of bacteria recovered from the grooves incre...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/0003-9969(85)90029-9
更新日期：1985-01-01 00:00:00
abstract：:Daily intravenous administration of 50 mg/kg cyclosporin A (CsA), after excision of cheek pouch tumors induced with 9,10-dimethyl-1,2-benzanthracene (DMBA), enhanced the incidence of cervical lymph node metastasis to 93%, a significant increase over the rates observed for animals receiving a dosage of 25 mg/kg (43%), ...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/0003-9969(92)90143-v
更新日期：1992-01-01 00:00:00
abstract：:Calcium and protein kinase C may be directly involved in exocytosis. However, in the rat submandibular gland, cAMP-mediated events appear to be required for mucin secretion. Calcium may be involved, but a direct signal-transduction role for calcium and protein kinase C in regulating such secretion has yet to be establ...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/0003-9969(89)90075-7
更新日期：1989-01-01 00:00:00
abstract：:Osteoclastogenesis is the major cellular event responsible for bone loss and is triggered by inflammation. Acai-berry has proven anti-inflammatory effects. However, there is a lack of evidence for its effects on osteoclastogenesis. Thus, the aim of this study was to determine whether acai-berry extract (ABE) could inh...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/j.archoralbio.2016.03.016
更新日期：2016-08-01 00:00:00
abstract：:Centrifuged deposits of various individual bacteria from type-culture collections and dental plaque samples were immersed in liquid nitrogen for periods of up to 2 years. All the organisms were recovered after storage in liquid nitrogen but Fusobacterium nucleatum (ATCC 10953) and Campylobacter fetus (NCTC 10354) cons...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/0003-9969(84)90095-5
更新日期：1984-01-01 00:00:00
abstract：:Nerve fibres showing CGRP-immunoreactivity were exclusively distributed around blood vessels in the periodontal ligament of normal teeth. The CGRP-positive nerves as well as the vessels were more dense during tooth movement and reached a maximum density and intensity of immunoreaction after 3 days. After that, the imm...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/0003-9969(91)90023-n
更新日期：1991-01-01 00:00:00
abstract：OBJECTIVES:The initiation of the pain sensation experienced following the thermal stimulation of dentine has been correlated with fluid flow in the dentinal tubules. There may be other mechanisms. METHODS:This study examines this possibility using a mathematical model to simulate the temperature and thermal stress dis...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/j.archoralbio.2011.02.011
更新日期：2011-09-01 00:00:00
abstract：OBJECTIVE:Biofilms are complex, multi-species bacterial communities that colonize the oral cavity in the form of plaque and are known to cause dental caries and periodontal disease. Present study demonstrated the potential of three selected medicinal plants against isolated and identified dental biofilm forming strains...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/j.archoralbio.2017.05.011
更新日期：2017-09-01 00:00:00
abstract：:Twenty-five premolars (from Nagoya, Japan < 0.1 parts/10(-6)F in drinking water) were sampled to determine the fluoride content in imbrication lines of Retzius between the grooves and ridges of perikymata on the enamel surface. Eight small windows were formed on each surface in groove and ridge regions using an etched...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/s0003-9969(98)00059-4
更新日期：1998-09-01 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：:Tongue movements in three female Macaca fascicularis, with radio-opaque markers in the tongue, teeth and hyoid, feeding on apple, banana and monkey chow, were recorded using lateral projection cineradiography (+/- 100 f.p.s.) with synchronized frontal view cinephotography (50 f.p.s.). Marker positions were digitized a...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/0003-9969(95)98812-d
更新日期：1995-03-01 00:00:00
abstract：:Masticatory muscle electromyograms (EMGs) were recorded while patients with bulbar myasthenia gravis chewed artificial food and compared with those of patients with ocular myasthenia gravis, patients in clinical remission who had previously suffered from bulbar myasthenia gravis and healthy individuals. Masticatory pe...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/s0003-9969(02)00014-6
更新日期：2002-05-01 00:00:00
abstract：:Growth in body length, skeletal lengths, incisor lengths and molar root lengths were retarded in dwarf mice. The root lengths of third molars were more severely affected than those of other molars. The crown lengths at the enamel-cementum junction of upper and lower molars of most dwarf mice were significantly shorter...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/0003-9969(85)90135-9
更新日期：1985-01-01 00:00:00
abstract：OBJECTIVE:To investigate the relationship between ATP and IL-6 in mechanical stress-induced REX-1 expression in SHEDs. METHODS:Cells were stimulated with mechanical stress (0-2.5 gcm(-2)), IL-6 (0.1-5 ng/ml), or ATP (10-100 μM) for 2h in serum-free media. IL-6 and REX-1 expression was examined by qualitative and quant...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/j.archoralbio.2014.09.008
更新日期：2015-01-01 00:00:00
abstract：:Apoptosis in regressive primary (deciduous) dental primordia was examined in the embryos of Suncus murinus, which is a monophyodont. The primary tooth germs of S. murinus are temporarily formed and disappear during the embryonic period before they are calcified. Most primary tooth germs reach the bell stage and degene...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/s0003-9969(01)00007-3
更新日期：2001-07-01 00:00:00
abstract：OBJECTIVES:To assess the association between the promoter region of serotonin transporter (5-HTTLPR) gene polymorphism and recurrent aphthous stomatitis (RAS) occurrence. DESIGNS:We performed the meta-analysis to determine the potential association between 5-HTTLPR polymorphism and RAS. We retrieved revelant studies f...
journal_title：Archives of oral biology
pub_type： 杂志文章,meta分析
doi：10.1016/j.archoralbio.2019.104555
更新日期：2020-01-01 00:00:00
abstract：:Gingival crevicular fluid (GCF) was collected into capillary tubes from healthy gingiva and sites of advanced periodontitis. Following digestion with Pronase E, the glycosaminoglycans were isolated by successive precipitation into 5% cetylpyridinium chloride and 95% ethanol. Unsaturated disaccharide isomers of chondro...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/0003-9969(95)00038-q
更新日期：1995-08-01 00:00:00
abstract：:Cementum of teeth previously analysed for fluoride was re-examined in order to determine whether or not periodontal disease had affected the thickness of the tissue. In the periodontally diseased teeth the cementum was thinner than normal in the middle region of the root. The apical cementum, however, was significantl...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/0003-9969(92)90132-r
更新日期：1992-08-01 00:00:00
abstract：OBJECTIVE:It was aimed to investigate the in vivo effects of local injection of sclerostin protein on orthodontic tooth movement. DESIGN:A total of 48 rats underwent orthodontic mesialization of the maxillary first molars on both sides. Local injection was given at the compression side in the alveolar bone on both max...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/j.archoralbio.2018.12.011
更新日期：2019-03-01 00:00:00
abstract：:A high molecular-weight mucin was purified from human submandibular-sublingual saliva. The purity of the mucin preparation was demonstrated by the absence of other salivary proteins, by antibody reactivity and by gel electrophoresis. After reduction with mercaptoethanol a putative link component with approximate Mr 15...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/0003-9969(90)90041-8
更新日期：1990-01-01 00:00:00
abstract：:Two experimental approaches were used to examine the relationship between c-fos gene expression and tissue proliferative responses. Beta-Adrenergic and muscarinic receptor stimulation yielded equivalent levels of c-fos expression, although only beta-adrenergic receptor agonists are reported as capable of eliciting DNA...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/0003-9969(89)90088-5
更新日期：1989-01-01 00:00:00
abstract：:Samples of gingival crevicular fluid (GCF) were collected in 30 volunteers with inflamed gingiva, using either capillary tubes (cGCF) or Durapore strips (sGCF). They were examined, together with samples of serum from the same patients, by sodium dodecyl sulphate-polyacrylamide gel electrophoresis and/or by two-dimensi...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/s0003-9969(96)00076-3
更新日期：1996-08-01 00:00:00
abstract：:Normal function of the lateral pterygoid muscle is not well understood. The principal aim of this study was to determine whether there is a progressive decrease in lateral pterygoid activity as the condyle moves posteriorly and superiorly during the return phase of a contralateral or protrusive jaw movement, as would ...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/s0003-9969(00)00011-x
更新日期：2000-06-01 00:00:00
abstract：:Internal derangement (ID) in the temporomandibular joint (TMJ) comprises a group of clinical problems with relatively high prevalence. However, the temporal changes in gene expression of condylar cartilage during continuous ID remain unclear. The aim of the current study is to investigate by microarray analysis, the d...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/j.archoralbio.2016.11.006
更新日期：2017-02-01 00:00:00
