Abstract:
:Recent studies of the manipulation and reduction of food in the human mouth have used lateral-projection videofluorography (VFG) and so have concerned antero-posterior food movement. To determine the degree to which (a) food was chewed bilaterally as opposed to unilaterally, (b) the frequency of side changes, (c) the contribution of tongue and cheek activity to food manipulation, and (d) the effect of food consistency on these activities, nine young adults were recorded eating 7g cubes of four foods (banana, biscuit [cookie] and two types of meat: "tender" and "tough") in the postero-anterior projection. Videotapes recorded at 30 frames/s were acquired to disk; data were analysed as single frames and in slow-motion. As expected, the meat samples, being fibrous, required more chewing and manipulation, allowing details of the process to be established. Food was ingested in the midline; the tongue then positioned the cube on the occlusal plane of one side by a combination of pushing, tilting and twisting movements before any occlusal contact (stage I transport). During processing, food was kept on the occlusal surface by a combination of rhythmic tongue-pushing moving the food buccally (41% of cycles), and cheek-pushing (28% of cycles) returning it in the lingual direction. This reciprocating movement ensured that different parts of the food were subjected to occlusal force in successive cycles. Bilateral chewing was common and associated with either: (a) a near-symmetrical closing movement with tooth-food-tooth contact occurring almost simultaneously on both sides, or (b) an identifiable "active side" but a jaw movement extended medially to carry the lower molars through a power stroke on the "balancing" side. During the sequence, food requiring further chewing might be moved to the erstwhile balancing-side (balancing-side shift); or across the mouth to the tooth row or vestibule on the other side and "stored" for later reduction (segregation shift). Towards the end of the sequence, triturated material was moved to the midline (aggregation shift) for bolus formation and deglutition. While distinct patterns of mediolateral and vertical jaw movements seem to be associated with shift and transport cycles, these connections have not yet been established with sufficient robustness to support predictions of intra-oral events from jaw movement profiles alone.
journal_name
Arch Oral Bioljournal_title
Archives of oral biologyauthors
Mioche L,Hiiemae KM,Palmer JBdoi
10.1016/s0003-9969(02)00007-9subject
Has Abstractpub_date
2002-04-01 00:00:00pages
267-80issue
4eissn
0003-9969issn
1879-1506pii
S0003996902000079journal_volume
47pub_type
杂志文章abstract:OBJECTIVE:Our study aimed to investigate the role of interleukin (IL)-17 in dental pulp inflammation and the relationship between WNT5A and IL-17. METHODS:Immunohistochemical staining was used to detect the expression of tumor necrosis factor-α (TNF-α), WNT5A and IL-17 in pulp tissues. Anti-IL-17 neutralizing antibody...
journal_title:Archives of oral biology
pub_type: 杂志文章
doi:10.1016/j.archoralbio.2019.05.003
更新日期:2019-07-01 00:00:00
abstract:OBJECTIVE:To compare the effectiveness and acceptability of a newly developed pediatric sialometer as an alternative to the conventional spitting method. METHODS:A clinical study was carried out with healthy children (G1; n = 30) and oncological children (G2; n = 30). A newly developed pediatric sialometer was compare...
journal_title:Archives of oral biology
pub_type: 杂志文章
doi:10.1016/j.archoralbio.2020.104847
更新日期:2020-10-01 00:00:00
abstract::The present study was designed to investigate the mechanical properties and load-relaxation of these discs in compression. Eight discs were used for the experiments. Compression was applied to specimens up to the specified strain, and a series of load-relaxation tests was conducted on each specimen from 0.25% strain t...
journal_title:Archives of oral biology
pub_type: 杂志文章
doi:10.1016/s0003-9969(99)00097-7
更新日期:1999-12-01 00:00:00
abstract::Histatins 1, 3 and 5 are the major members of a histidine-rich protein family present in human salivary secretions. These proteins are distinct from many salivary proteins in their high positive charge density at neutral pH, and their antibacterial and antifungal properties. In this study, the hydroxyapatite adsorptio...
journal_title:Archives of oral biology
pub_type: 杂志文章
doi:10.1016/s0003-9969(03)00012-8
更新日期:2003-05-01 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:OBJECTIVE:The aim of the present study was to investigate the correlation between IL-25 expression and disease severity, and the potential immunoregulatory role of IL-25 expression in oral lichen planus (OLP). MATERIALS AND METHODS:The oral mucosal tissue samples obtained from OLP patients and healthy controls (HCs) w...
journal_title:Archives of oral biology
pub_type: 杂志文章
doi:10.1016/j.archoralbio.2018.11.015
更新日期:2019-02-01 00:00:00
abstract::This study sought to determine if the diet-induced changes in submandibular salivary glands can be reversed. Two groups of male weanling Sprague-Dawley rats were fed purified diets containing 9% butter + 1% corn oil (group I, control) or 9% ethyl ester concentrate of n-3 fatty acids + 1% corn oil (group II, experiment...
journal_title:Archives of oral biology
pub_type: 杂志文章
doi:10.1016/0003-9969(93)90209-5
更新日期:1993-05-01 00:00:00
abstract::Thirty rats were divided into 3 equal groups. Following 9 days of induced unimpeded eruption, a single partial pulp resection was performed on the repeatedly-shortened lower left incisor of one group. A total of 3 resections, each repeated after 48 h, was performed on the animals in a second group. The lower left inci...
journal_title:Archives of oral biology
pub_type: 杂志文章
doi:10.1016/0003-9969(83)90127-9
更新日期:1983-01-01 00:00:00
abstract:OBJECTIVE:We investigated the residual antibiofilm effects of different concentrations of double antibiotic paste (DAP) applied on radicular dentin for 1 or 4 weeks. DESIGN:Dentin samples were prepared (n=120), sterilized and pretreated for 1 or 4 weeks with the clinically used concentration of DAP (500mg/mL), low con...
journal_title:Archives of oral biology
pub_type: 杂志文章
doi:10.1016/j.archoralbio.2016.06.006
更新日期:2016-10-01 00:00:00
abstract::Designing a temporomandibular joint (TMJ) total prosthesis requires the assessment of joint displacements for open/close movements. Current knowledge presents disc-condyle motions as involving both translation and rotation but there may be substantial variations from human to human. The aim of this study is to discrim...
journal_title:Archives of oral biology
pub_type: 杂志文章
doi:10.1016/j.archoralbio.2007.11.010
更新日期:2008-05-01 00:00:00
abstract::Salivary gland intralobular ducts are responsible for the modification of the electrolyte composition of the primary fluid secreted by the acini. However, the intracellular messengers that regulate this and other intralobular duct cell processes have not been fully characterized. To investigate the possibility that cA...
journal_title:Archives of oral biology
pub_type: 杂志文章
doi:10.1016/s0003-9969(96)00028-3
更新日期:1996-07-01 00:00:00
abstract:INTRODUCTION:Covalently bound functional GAGs orchestrate tissue mechanics through time-dependent characteristics. OBJECTIVE:The role of specific glycosaminoglycans (GAGs) at the ligament-cementum and cementum-dentin interfaces within a human periodontal complex were examined. Matrix swelling and resistance to compres...
journal_title:Archives of oral biology
pub_type: 杂志文章
doi:10.1016/j.archoralbio.2015.11.021
更新日期:2016-03-01 00:00:00
abstract::There is evidence to suggest that some reimplanted and autotransplanted teeth are reinnervated, but the time-course of reinnervation and the properties and source of the reinnervating axons are not known. This reinnervation has been investigated using electrophysiological techniques in 6 adult cats. In each cat, one l...
journal_title:Archives of oral biology
pub_type: 杂志文章
doi:10.1016/0003-9969(83)90172-3
更新日期:1983-01-01 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 evaluate the association between polymorphisms in DLX1, DLX2, MMP13, TIMP1 and TIMP2 genes with dental fluorosis (DF) phenotype. DESIGN:Four hundred and eighty one subjects (108 with DF and 373 DF free) from 6 to 18 years of age were recruited. This population lived in Rio de Janeiro, a city with fluorida...
journal_title:Archives of oral biology
pub_type: 杂志文章
doi:10.1016/j.archoralbio.2017.01.009
更新日期:2017-04-01 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::Porphyromonas gingivalis is strongly associated with periodontal disease. Significant titres of specific IgG antibodies to P. gingivalis can be found in healthy individuals and those with periodontitis. In this study, 22 outer membrane antigens ranging from 15.5 to 107.6 kDa were recognized by sera from persons with p...
journal_title:Archives of oral biology
pub_type: 杂志文章
doi:10.1016/0003-9969(95)00063-u
更新日期:1995-10-01 00:00:00
abstract::The purpose of this study was firstly to characterize the changes occurring in size and form of the mineralizing maxillary second primary molar and first permanent molar crowns, and secondly to determine if similar changes in size and form characterize enamel apposition in the crowns of these teeth. Twenty-five primar...
journal_title:Archives of oral biology
pub_type: 杂志文章
doi:10.1016/s0003-9969(98)00034-x
更新日期:1998-07-01 00:00:00
abstract:OBJECTIVE:To what extent is the current knowledge about regulatory and patterning processes gained from research on animal models (predominantly mouse) applicable to describe certain aspect of human prenatal dental development? METHODS:3D-reconstructions were produced from serial sections of human dental primordia (Ra...
journal_title:Archives of oral biology
pub_type: 杂志文章
doi:10.1016/j.archoralbio.2004.10.013
更新日期:2005-02-01 00:00:00
abstract::Although it is well known that somatostatin (SRIF) modulates several digestive functions, there are only a few reports about its effect on the salivary glands. Here, the action of SRIF parotid secretion was studied, in vivo and in vitro, in male Wistar rats. In vivo SRIF infusion (35 microg/kg per hr) inhibited the pa...
journal_title:Archives of oral biology
pub_type: 杂志文章
doi:10.1016/s0003-9969(99)00035-7
更新日期:1999-07-01 00:00:00
abstract::By comparing the results of force matching between the jaw and the thumbs, whether subjects have any knowledge about the magnitude of exerted forces irrespective of the motor system was studied. Subjects were asked to match isometric forces of their own choice exerted by flexion of one of the thumbs with the jaw, and ...
journal_title:Archives of oral biology
pub_type: 杂志文章
doi:10.1016/0003-9969(92)90111-k
更新日期:1992-10-01 00:00:00
abstract:OBJECTIVE:When eating solids, stage II transport (St2Tr) propels triturated food into the pharynx for bolus formation and storage before swallowing. Although the existence of St2Tr is acknowledged, the reason for its existence remains unclear. Understanding it may facilitate development of food appropriate for individu...
journal_title:Archives of oral biology
pub_type: 杂志文章
doi:10.1016/j.archoralbio.2017.05.013
更新日期:2017-09-01 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:OBJECTIVE:The purpose of this study was to compare tooth components (enamel and dentin) in Familial Dysautonomia (FD) and Down syndrome (DS) in order to assess the extent to which each was affected. DESIGN:The design was cross-sectional. The sample consisted of 20 FD patients and 45 DS patients. The control group comp...
journal_title:Archives of oral biology
pub_type: 杂志文章
doi:10.1016/j.archoralbio.2004.02.008
更新日期:2004-08-01 00:00:00
abstract::Glycosaminoglycans specifically regulate the amount of calcium released from bone cultures; the mechanisms responsible for this regulation are not known. Media from glycosaminoglycan-stimulated bone organ cultures were analysed to determine (1) if specific calcium-releasing substances were selectively produced, and (2...
journal_title:Archives of oral biology
pub_type: 杂志文章
doi:10.1016/0003-9969(90)90081-k
更新日期:1990-01-01 00:00:00
abstract:OBJECTIVE:This study aimed to examine and compare the anti-caries effects of citrus lemon oil (CLO) and limonene in rats. METHODS:The minimal inhibitory concentrations of CLO and limonene were measured using the disk diffusion method. The rats were infected with Streptococcus sobrinus and assigned into four groups: (1...
journal_title:Archives of oral biology
pub_type: 杂志文章
doi:10.1016/j.archoralbio.2020.104851
更新日期:2020-10-01 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: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::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::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