Abstract：
OBJECTIVE:Currently there is still a debate about whether peritubular dentine (PTD) is non-collageneous or collageneous tissue. The chemical composition and structure of human PTD and intertubular dentine (ITD) was re-visited in this study. DESIGN:The dentine tubular region including ITD and PTD prepared from human third molars was in situ detected by means of micro-Raman spectroscopy (μRs) and atomic force microscopy (AFM). RESULTS:From the μRs study, it was found that the mineral/matrix ratios (phosphate vs. CH(2)) in PTD were ∼3 times of those in ITD. For the mineral, the differences between PTD and ITD were small, but still detectable. For the organic matrix, the intensity ratios of amide III to CH(2) in ITD were ∼1.5 times of those in PTD, indicating the structural differences. In addition, there was a higher proline/hydroxyproline content in ITD than that in PTD. However, the overall Raman peak contour in the amide regions (I & III) was similar, indicating collagen might still exist in both the ITD and PTD. An in situ AFM observation of the dentinal tubular region during EDTA etching confirmed that dentine collagen ran across from the ITD into the PTD. CONCLUSION:A phenomenon similar to that observed in the dentine-enamel junction is proposed to explain the above results. It is demonstrated that the μRs-AFM approach can be used to provide an insight into the structure of small dental tissues at the micron or sub-micron scale.
journal_name
Arch Oral Bioljournal_title
Archives of oral biologyauthors
Xu C,Wang Ydoi
10.1016/j.archoralbio.2011.09.008subject
Has Abstractpub_date
2012-04-01 00:00:00pages
383-91issue
4eissn
0003-9969issn
1879-1506pii
S0003-9969(11)00287-1journal_volume
57pub_type
杂志文章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：:Medications commonly used in elderly people cause hyposalivation and are associated with an enhanced prevalence of dental caries. Propranolol (a beta-adrenergic antagonist) is a commonly used antihypertensive agent that is prescribed for long-term use. The purpose of this investigation was to compare the effects of th...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/0003-9969(93)90094-3
更新日期：1993-10-01 00:00:00
abstract：:To investigate whether mechanical deformation of osteoblasts exerts an influence upon parathyroid hormone (PTH)-induced bone resorption, the effect of medium conditioned by a statistically stretched, osteoblast-enriched, bone cell population on PTH-induced osteoclast-like cell formation in mouse bone marrow cultures w...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/S0003-9969(97)00001-0
更新日期：1997-03-01 00:00:00
abstract：OBJECTIVE:MicroRNAs (miRNAs) are recognised as important regulators of a variety of fundamental biologic processes. Our study was undertaken to examine the role of MicroRNA-203 (miR-203) in modulating nitric oxide (NO) expression in female Sprague-Dawley rat mandibular condylar chondrocytes (MCCs) via targeting transie...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/j.archoralbio.2012.08.013
更新日期：2013-02-01 00:00:00
abstract：:Transmission electron microscopy showed that when either dentinal phosphoprotein or calcium-treated phosphoprotein or phosvitin were introduced during type I collagen fibrillogenesis the fibrils formed were significantly wider and the cross-banding was more distinct than in the absence of phosphoprotein. The collagen ...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/0003-9969(93)90068-w
更新日期：1993-09-01 00:00:00
abstract：OBJECTIVE:Phosphoryl oligosaccharides of calcium (POs-Ca) are highly soluble calcium source made from potato starch. The aim of this study was to investigate the optimal concentrations of POs-Ca for the remineralization of subsurface enamel lesions in vitro. DESIGN:Demineralized bovine enamel slabs (n=5) were reminera...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/j.archoralbio.2012.07.004
更新日期：2013-02-01 00:00:00
abstract：OBJECTIVE:The literature suggests that females have less adverse effects to infection than males, due to the protective effects of oestrogen. The purpose of our study is to compare the systemic effects of induced periapical lesions between groups of animals with various serum concentrations of oestrogen. METHODS:To in...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/j.archoralbio.2010.09.008
更新日期：2011-02-01 00:00:00
abstract：:The expression and distribution of inducible nitric oxide synthase (iNOS) was examined in 12 samples of human temporomandibular joint (TMJ) with internal derangement (ID) and four control specimens. In the diseased joints, strong or definite iNOS reactivity was expressed in synovial lining and endothelial cells; weake...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/s0003-9969(00)00086-8
更新日期：2001-01-01 00:00:00
abstract：:Extracts of these dental pulps from adult cats contained a non-dialysable agent or agents which could support neurone survival and neurite development for at least three days in neurone-enriched cultures of sympathetic ganglion cells from 11-day chick embryos. The neurone survival-promoting activity differed from nerv...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/0003-9969(87)90104-x
更新日期：1987-01-01 00:00:00
abstract：OBJECTIVE:To investigate the effects of periodontal bacterial lysates on maturation and function of mature monocyte-derived dendritic cells (m-MDDCs) derived from individuals with chronic periodontitis (CP) or healthy periodontal tissue (HP). DESIGN:m-MDDCs derived from peripheral blood monocytes, cultured for 7 days ...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/j.archoralbio.2013.03.013
更新日期：2013-09-01 00:00:00
abstract：:In magnetic-stimulation studies where motor-evoked potentials (MEP) are measured on different occasions, accurate relocation of the stimulation site on the scalp is essential. Here a novel method of locating neural stimulation sites was tested and the reproducibility of MEPs in the human masseter assessed. The heads o...
journal_title：Archives of oral biology
pub_type： 临床试验,杂志文章
doi：10.1016/s0003-9969(98)00050-8
更新日期：1998-08-01 00:00:00
abstract：:Types of etching patterns and histological appearances were examined in acid-etched, NaF-treated caries-like lesions of enamel. Etching patterns similar to those for etched-sound enamel were found. Remineralization was limited to the surface zone and superficial portion of the body of the lesion following acid-etching...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/0003-9969(84)90004-9
更新日期：1984-01-01 00:00:00
abstract：:The effect of chronic mandibular protrusion on the collagenolytic and phosphatase activity of several mandibular bone sites and the condylar cartilage was evaluated. Ninety-three male Sprague-Dawley rats were equally divided into two experimental and one control group. One experimental group wore a protrusive applianc...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/0003-9969(89)90067-8
更新日期：1989-01-01 00:00:00
abstract：AIM:This study was planned to investigate whether smoker patients with inflammatory periodontal disease exhibit different salivary concentrations of C-telopeptide pyridinoline cross-links of type I collagen (ICTP) and osteocalcin (OC) compared to the non-smoker and/or ex-smoker counterparts. METHODS:Whole saliva sampl...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/j.archoralbio.2009.09.009
更新日期：2009-12-01 00:00:00
abstract：:Green tea is a leading beverage in the Far East for thousands of years; it is regarded for a long time as a health product. Green tea is important source of polyphenol antioxidants. Polyphenols including epigallocatechin 3 gallate (EGCG) constitute the most interesting components in green tea leaves. Green tea has the...
journal_title：Archives of oral biology
pub_type： 杂志文章,评审
doi：10.1016/j.archoralbio.2011.11.017
更新日期：2012-05-01 00:00:00
abstract：OBJECTIVE:To study and compare the relationships between mean chewing cycle duration, selected cephalometric variables representing mandibular length, face height, etc., measured in women and in their teenage or young-adult biological daughters. DESIGN:Daughters were recruited from local high schools and the Universit...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/j.archoralbio.2015.08.004
更新日期：2015-11-01 00:00:00
abstract：OBJECTIVE:Acidic diets are advocated as main risk factor for tooth erosion, which could be prevented, or at least controlled, if patients were early advised. It is important to identify, hence, if possible dietary constituents regionally consumed on large scale, such as tucupi, a low-pH yellowish-green color and strong...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/j.archoralbio.2015.10.021
更新日期：2016-01-01 00:00:00
abstract：:Cell migration and replication associated with odontoblast replacement occurring soon after pulp exposure in primate teeth were studied. Class 5 cavity preparations resulting in pulp exposures were restored with a calcium hydroxide-containing capping agent and amalgam. Eighty-four and 96 h after this the animals were ...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/0003-9969(90)90093-p
更新日期：1990-01-01 00:00:00
abstract：:Electromyographic recordings (EMG) obtained from intramuscular electrodes inserted in the lateral pterygoid muscle (lat. pt.) of 29 juvenile and adolescent monkeys were assessed in relation to the recorded activity of three jaw elevating muscles, temporalis, masseter and medial pterygoid, and a jaw muscle depressor, t...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/0003-9969(82)90087-5
更新日期：1982-01-01 00:00:00
abstract：BACKGROUND AND OBJECTIVE:Dental pulp repair is a common process triggered by microbial and mechanical challenges. Matricellular modulators, such as periostin, are key for extracellular matrix stability and tissue healing. In the scope of the dental pulp, periostin expression has been reported during development and act...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/j.archoralbio.2015.02.008
更新日期：2015-05-01 00:00:00
abstract：OBJECTIVE:To investigate the functional mechanism of microRNA-182 (miR-182) in head and neck squamous cell carcinoma (HNSCC). DESIGN:HNSCC and normal samples were used to check both p53 and miR-182 expression. Two cancer cell lines with overexpression of miR-182 were used to check cell proliferation and migration. In ...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/j.archoralbio.2016.09.012
更新日期：2017-01-01 00:00:00
abstract：:The changes in masseter EMG and biting force evoked by electrical stimulation of the lip were measured in normal people. Stimulation at noxious intensities elicited a characteristic, biphasic inhibitory response in the masseter EMG and a transient reduction in the biting force. The pattern of masseter inhibition and f...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/0003-9969(85)90083-4
更新日期：1985-01-01 00:00:00
abstract：OBJECTIVES:Dental caries is the most common chronic infectious disease in children. Streptococcus mutans, the main cariogenic bacterial species, produces persisters, nongrowing dormant variants of regular cells associated with chronicity of diseases. We hypothesized that the recurrent nature of caries, particularly wit...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/j.archoralbio.2019.104601
更新日期：2020-02-01 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：:Plaque grown on terylene gauze in the mouths of 5 volunteers was treated with a mineralizing solution intermittently for 4 days to deposit fluorhydroxyapatite. Control plaque grown simultaneously was not treated. Sixteen hours after the last treatment, plaque gauzes were incubated in 0.28 M glucose under N2 at 37 degr...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/0003-9969(84)90073-6
更新日期：1984-01-01 00:00:00
abstract：:The lesion of microhypoplasia of an unerupted tooth was composed of small, irregularly distributed crystals, similar to those of immature and hypomineralized enamel. The lesion appeared to be a defect of crystal growth and maturation, probably involving a partial and momentary failure of the operating cycle of an amel...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/0003-9969(84)90055-4
更新日期：1984-01-01 00:00:00
abstract：OBJECTIVES:Dental evolution affects the geometry of the tooth, but the adaptive relevance of these changes is related to tooth sharpness, complexity, and relief (topography). On a set of laboratory mice, we assessed how wear related to age and food consistency affected molar geometry and topography. DESIGN:Three group...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/j.archoralbio.2017.04.028
更新日期：2017-09-01 00:00:00
abstract：:Salivary proteins and glycoproteins that participate in the formation of 2-h in vivo enamel pellicle were determined utilizing polyacrylamide gel electrophoresis [sodium dodecyl sulphate (SDS)-PAGE and anionic PAGE]/Western transfer analyses, and specific radiolabelling/SDS-PAGE fluorography. The sensitivity of these ...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/0003-9969(89)90070-8
更新日期：1989-01-01 00:00:00
abstract：OBJECTIVES:To explore the role of rostral ventromedial medulla (RVM) orexin 1 receptors (OX1R) on orofacial nociception -induced anxiety and locomotion in rats. DESIGN:Forty two adult male Wistar rats (220-270 gr) were randomly divided into 7 groups (n = 6) as follows: untreated control, capsaicin, capsaicin vehicle-t...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/j.archoralbio.2020.104778
更新日期：2020-08-01 00:00:00
abstract：:Eight primary incisors obtained from a child with dentinogenesis imperfecta (DI) type II were examined histologically using light microscopy and scanning electron microscopy. In both the DI and control teeth, large dentinal canals were observed along the midline of the crown distributed mesial-distally and coursing to...
journal_title：Archives of oral biology
pub_type： 杂志文章
doi：10.1016/0003-9969(85)90116-5
更新日期：1985-01-01 00:00:00
