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20 January 2007, Volume 34 Issue 01 Previous Issue    Next Issue

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Study and Development on Microbial Lectins LIU Yuan1, XIAO Jin1, BAO Jin- ku2, ZHOU Xue- dong1 Inter J Stomatol. 2007, 34 (01):  1-3.  Abstract ( 1746 )   HTML ( 6 )   PDF（pc） (40KB) ( 1801 )   Save Lectins are proteins or glycoproteins that agglutinate cells, including microbial lectins, plant lectins and animal lectins. It has  extraordinary important applications in many fields. The review presents the investigations in recent years on microbial lectins in the fields of categories, characteristics and functions. Meanwhile, the researches on oral microbial lectins are narrated. Related Articles | Metrics

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Resear ch Advancement about the Mechanisms of Acid Toler ance Response of Strepto JIANG Wei, LIANG Jing- ping Inter J Stomatol. 2007, 34 (01):  4-6.  Abstract ( 1476 )   HTML ( 5 )   PDF（pc） (29KB) ( 780 )   Save Acid tolerance is one of the main cariogenecities of Streptococcus mutans, especially its acid tolerance response, is regarded as a significant factor for its life and cariogenecity. With the development of molecular biology, researches about this subject are more and more deeply. This is a review about studies in this field. Related Articles | Metrics

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Development in Study of Quorum Sensing System Mediated by LuxS in Streptococcus mutans WANG Rong, BIAN Zhuan, NIE Min Inter J Stomatol. 2007, 34 (01):  7-9.  Abstract ( 1364 )   HTML ( 6 )   PDF（pc） (29KB) ( 1090 )   Save Quorum sensing system mediated by LuxS based on signal molecule autoinduccers - 2 （ AI - 2） facilitates interspecies communication. This signaling system has been also identified in Streptococcus mutans, which has been concerned as the main pathogenic bacteria in cariogenic biofilm in oral. The development of the effect of LuxS in biofilm formation, virulence factor production and the communication with other oral bacterias of Streptococcus mutans will be introduced in this article. Related Articles | Metrics

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New Progr ess in Resear ch of Quorum Sensing Signal Conduction in Dental Plaque OU Mei- zhen, LING Jun-qi Inter J Stomatol. 2007, 34 (01):  10-10～12.  Abstract ( 1352 )   HTML ( 7 )   PDF（pc） (30KB) ( 1340 )   Save Biofilm is a major exist form of bacteria in nature. In order to coordinate there physiological activity or compete with others in all kinds of nutritions，kinds of signal conduction are used in plaque of the biofilm. Dental plaque correlates closely with dental caries and periodontitis，signal conduction of microorganism in dental plaque has got more and more attention and got some progress in research. In this review，we summarize the research progress in signal conduction in dental plaque in recent years. Related Articles | Metrics

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Infection of Enterococcus faecalis in Root Canal WEN Jing, FAN Bing Inter J Stomatol. 2007, 34 (01):  13-13～15.  Abstract ( 1762 )   HTML ( 11 )   PDF（pc） (33KB) ( 1407 )   Save A recognized pathogen in post- treatment endodontic infections, Enterococcus faecali（s E. faecalis）is frequently isolated both in mixed flora and in monocultures. E. faecalis is rarely present in primary apical periodontitis, but it is the dominant microorganism in root - filled teeth presenting with post - treatment apical periodontitis. It is probably the species that can best adapt to and tolerate the ecologically demanding conditions in the filled root canal. Eradication of E. faecalis from the root canal with chemomechanical preparation and using disinfecting irrigants and antibacterial dressings remains a challenge. Related Articles | Metrics

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Advances on Cells Associated with Cementum XU Xiang- liang1, ZHAO Shi - jie1, GAO Yan2 Inter J Stomatol. 2007, 34 (01):  16-16～18.  Abstract ( 1369 )   HTML ( 5 )   PDF（pc） (27KB) ( 1353 )   Save Cementogenesis on a root surface previously exposed by periodontal disease is a prerequisite for periodontal regeneration. The extent of periodontal regeneration largely depends on the regenerative potential at the root surface. The mechanism of cementogenesis and the exact locations of the cementoblasts or their precursors are still not well known until now. More and more experimental studies have focused on this field. The article reviewed the studies on cells associated with cementum, proposed the viewpoints on the location of cementoblast- precusors and the origin of cementoblasts. In the review, an animal cementoblasts model established for the study on formation mechanism of cementum was also mentioned. Related Articles | Metrics

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Role of Fluorine in Development of Dental Apatite in Enamel XU Qiang1, SHI Si- zhen2 Inter J Stomatol. 2007, 34 (01):  19-19～21.  Abstract ( 1333 )   HTML ( 7 )   PDF（pc） (30KB) ( 811 )   Save Fluoride plays an important role in stomatological phylaxiology. Fluorine is like a double- edge sword, on one hand, it can promote the biological mineralization of tooth hard tissue, on the other hand, excessive fluoride intake may insult in pathological change in tooth. The purpose of the present paper is to review the role of fluorine in developing enamel and discuss the effect of fluorine on the crystal of enamel apatite. Related Articles | Metrics

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Effects of the Stress on the Condylar Chondrocytes of Temporomandibular Joint GUO Wei - hua1, LI Song2, XU Yun2 Inter J Stomatol. 2007, 34 (01):  22-22～23,29.  Abstract ( 1489 )   HTML ( 6 )   PDF（pc） (30KB) ( 1710 )   Save The condyle is the important growth area of the temporomandibular joint. Its growth and reconstructing is very pertinent to condylar chondrocytes as the second cartilage. Recently, it gradually receives the researchers′concern that the stress takes effect on the growth，development, injuryand reconstructing of the condylar chondrocytes. Therefore, the author summarizes the effects of the stress on the condylar chondrocytes according to the characteristic of the biological stress. Related Articles | Metrics

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Study of Er .Cr .YSGG Laser for Cur ing Car ies HE Zong- lai, JIN Guang- sheng Inter J Stomatol. 2007, 34 (01):  24-24～26.  Abstract ( 1255 )   HTML ( 3 )   PDF（pc） (28KB) ( 1413 )   Save Er.Cr.YSGG laser is a laser- powered hydrokinetic system of new generation, which is now being gradually searched and applied for curing caries. This review focuses on its work principle, safety issues of clinical applications and its abilities including cutting, etching dental hard tissuse, and cleaning smear layer. Related Articles | Metrics

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Complications Associated with Fr actur ed File Removal LI Sheng, ZHANG Jian，GE Jiu- yu Inter J Stomatol. 2007, 34 (01):  27-27～29.  Abstract ( 1587 )   HTML ( 7 )   PDF（pc） (28KB) ( 1039 )   Save File fracture was a frequent complication of root canal therapy. It may lead to the failure of this therapy. Methods had been tried to remove the file. Varying extents of dentin were removed during this procedure, potentially leading to a series of complications. Related Articles | Metrics

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Effects of Systemic Factor s on the Endodontic Disease LI Rui- min, YE Ling, TAN Hong, HUANG Ding- ming Inter J Stomatol. 2007, 34 (01):  30-30～32.  Abstract ( 1505 )   HTML ( 5 )   PDF（pc） (29KB) ( 1276 )   Save The periapical disease and the pulp disease are the endodontic disease which mostly caused by infection of bacterium and are connected with immune system. Effects of systemic factors on the appearance, evolution, coversion and therapy of the endodontic disease are very important. In this article we sum up the effects under the influence of the factors such as imbalance of hormone, infection of virus, protein calorie malnutrition and other diseases. Related Articles | Metrics

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Treatment Methods Selection for Condylar Fractures YANG Liang, LIU Lei Inter J Stomatol. 2007, 34 (01):  33-33～34,37.  Abstract ( 1735 )   HTML ( 4 )   PDF（pc） (30KB) ( 1433 )   Save The condylar fractures are commonly among all the mandibular fractures. And the treatments are still on argument nowadays. We propose this review to help clinical surgeons for the choice for the treatment programs. Related Articles | Metrics

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Study of Application on Repair ing Alveolar Cleft with Tibia PENG Chong, WANG Yu- jiang Inter J Stomatol. 2007, 34 (01):  35-35～37.  Abstract ( 1287 )   HTML ( 4 )   PDF（pc） (29KB) ( 1099 )   Save It has specific superiority to use autogenous cancellous bone as bone harvesting source to repair alveolar cleft. Now the major autogenous bone harvesting donor site studied in clinic and element are iliac bone, rib, fibula, tibia, skull, zygomatic bone, chin. These years many scholars have done a lot of clinical and elementary study in using tibia as donor site, involving the methods, the site and the instrument of bone harvesting, and they compared the postoperative complications between using tibia and using conventional donor site. The article reviews the study of using tibia as bone harvesting donor site to repair the alveolar cleft. Related Articles | Metrics

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Research Progresses in Molecular Mechanisms of Perineural Invasion in Adenoid Cys QIAO Bin, TAO Qian Inter J Stomatol. 2007, 34 (01):  38-38～40.  Abstract ( 1402 )   HTML ( 2 )   PDF（pc） (27KB) ( 1101 )   Save Adenoid cystic carcinoma has special biological characteristics and the tumor cells' perineural invasion is the main reason of recurrence after tumor resection. This article is to overview the research progresses in molecular mechanisms of perineural invasion in adenoid cystic carcinoma. Related Articles | Metrics

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Advanced Resear ch on Regener ating Mechanism of Injur ed Facial Nerve DONG Hai, NIE Xin, LIU Lei Inter J Stomatol. 2007, 34 (01):  41-41～43.  Abstract ( 1550 )   HTML ( 4 )   PDF（pc） (28KB) ( 2118 )   Save Facial nerve injury is a very common disease in oral and maxillofacial surgery. It is important to comprehend the regenerating mechanism of injured facial nerve to get ideal functional recovery. It′s known that the regenerating mechanism of injured facial nerve involves much complicated cellular and molecular interactions. The process includes neural axon, neuron and non- neurocyte interaction and signal conduction. It′s reviewed that advanced research on regenerating mechanism of injured facial nerve in this article. Related Articles | Metrics

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Current Treatment of Progressive Hemifacial Atrophy YU Xue-song, LI Ji-hua Inter J Stomatol. 2007, 34 (01):  44-44～46.  Abstract ( 1146 )   HTML ( 1 )   PDF（pc） (29KB) ( 1017 )   Save Progressive hemifacial atrophy is characterized by slowly progressive atrophy of one side of the face, involving skin, soft tissue and bone. No treatment for the atrophy is available to cure. A review of the current treatment methods will be presented and discussed, including reconstructive surgery primarily and medicine. Related Articles | Metrics

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Transforming Growth Factor - α Gene and Nonsyndromic Cleft Lip and Palate MA Jing- zhai, LIANG Shang-zheng Inter J Stomatol. 2007, 34 (01):  47-47～49.  Abstract ( 1417 )   HTML ( 1 )   PDF（pc） (28KB) ( 1185 )   Save Nonsyndromic cleft lip and palat（e NSCLP）is a complex, multi- gene, multi- factor genetic disorder. Many scholars take a lot of study on this disorder from the association of gene and NSCLP to gene interaction, gene- environment interaction. The transforming growth factor- α（ TGF- α） gene is a polypeptidic growth factor, which promotes cell proliferation and transform, It presents high level in the epithelial tissue of the media ledge of the palatal shelves at the time of shelf fusion in mice. The association of TGF- αwith NSCLP, has been proposed as a candidate gene in the etiology of NSCLP. This article reviews the recent progress of the role of TGF- αgene in NSCLP. Related Articles | Metrics

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Utilizing X- ray Cephalometric Architecture Analysis on Evaluation of Anatomical WANG Qian, WANG Tao Inter J Stomatol. 2007, 34 (01):  50-50～52.  Abstract ( 1375 )   HTML ( 3 )   PDF（pc） (29KB) ( 1279 )   Save Obstructive sleep apnea syndrome is a disease with high morbility. The relationship between the disease and the anatomical defects in the cranio- maxillo- facial region and cervical part is very intimate. X- ray cephalometric architecture analysis with the soft tissue filtrating appliance is an effective way to diagnose and evaluate the disease. This paper is a review which summarizes X- ray cephalometric architecture analysis applied to evaluate the OSAS patients′anatomical defect. Related Articles | Metrics

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Molecule Mechanism of Cultivation of Tissue Engineer ing Bone RAO Yan- gang, TIAN Wei- dong Inter J Stomatol. 2007, 34 (01):  53-53～55.  Abstract ( 1524 )   HTML ( 2 )   PDF（pc） (30KB) ( 728 )   Save The bone loss is the common disease in oral facial maxillary. To repair the default is the puzzle in nowadays. But it′s possible to repair the loss with the progress of the tissue engineering and gene. The method could conquer the problem of nowadays. To uncover the effect of the cytokines in and out of the cells on the bone development is very important in the further clinical research. Related Articles | Metrics

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Progression of Vascularization in Bone Tissue Engineering of emporomandibular Joi JIAO Guo- hua, ZHANG Zhi - guang Inter J Stomatol. 2007, 34 (01):  56-56～58.  Abstract ( 1290 )   HTML ( 2 )   PDF（pc） (27KB) ( 583 )   Save Tissue engineering is a subject which produces bio- succedaneum using the principle and method of engineering and life science to repair, to maintain and/or to improve the function of the organism. Temporomandibular joint is susceptive to tumor and other diseases, result in tissue defect but difficult to restore. Tissue engineering has being desired to deal with the puzzle. Related Articles | Metrics

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Progress of the Relationship between Bruxism and Temporomandibular Disorders LI Xue- ling, LIN Xue- feng Inter J Stomatol. 2007, 34 (01):  59-59～61.  Abstract ( 1459 )   HTML ( 3 )   PDF（pc） (28KB) ( 2145 )   Save Both bruxism and temporomandibular disorde（rs TMD）are common oral diseases. It is difficult for dentists to make an appropriate diagnosis and treatment since their etiologies are not clear. Many researchers have tried their efforts to evaluate the relationship between bruxism and TMD. But they didn′t reach an agreement. In this article， the relationship between bruxism and TMD, and the mechanism that TMD may arise from bruxism are reviewed. Related Articles | Metrics

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Application of Zir conia Cer amics in Dental Use JIN En- long, JIAO Yan- jun Inter J Stomatol. 2007, 34 (01):  62-62～64.  Abstract ( 1662 )   HTML ( 5 )   PDF（pc） (27KB) ( 1671 )   Save Zirconia ceramics has been used in dental field for several years because of its high intensity, tenacity, excellent biocompatibility and the nearly perfect outlook. This review focuses on the research present status of zirconia ceramics in stomatology, the practical problems and the prospects of the researches on zirconia ceramics. Related Articles | Metrics

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Clinical Application of Porcelain Repair Techniques HUANG Hai - rong, WANG Ge Inter J Stomatol. 2007, 34 (01):  65-65～67.  Abstract ( 1286 )   HTML ( 5 )   PDF（pc） (30KB) ( 611 )   Save In 1980s, the technique of placing porcelain- fused- to- metal restorations spread in dentistry. The single crown and bridge restorations consisted of non- precious alloys such as Ni- Cr alloys are widely used due to superior aesthetic appearance and good mechanical properties. However, fracture of the porcelain has occurred in function because of the porcelain brittle, tooth preparation, laboratory mistakes and so on. One option is to remake the restoration itself, which is both costly and time consuming. An alternative method is to repair the deficiency using one of the bonding systems and composite resins. This article is to review the clinical application of porcelain repair techniques. Related Articles | Metrics

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Development of the Study of Fer rule Effect MENG Qing- fei, CHEN Ya- ming Inter J Stomatol. 2007, 34 (01):  68-68～70.  Abstract ( 1233 )   HTML ( 3 )   PDF（pc） (29KB) ( 1006 )   Save It has been proposed that the use of a ferrule as part of the core or artificial crown may be of benefit in reinforcing the endodontically treated teeth restored with post- and- core systems. The purpose of this article is to review the types and designs of the ferrule and to identify the factors that influence the ferrule effect. Related Articles | Metrics

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Association of the Dental Wedge- shaped Defect with Its Occlusal Abrasion in 1 839 ZHANG Lan, LIU Qian，HUANG Ding- ming Inter J Stomatol. 2007, 34 (01):  71-74.  Abstract ( 1381 )   HTML ( 3 )   PDF（pc） (35KB) ( 1164 )   Save Objective To investigate the association of the dental wedge-shaped defect（non- carious cervical lesion）with its abrasion in Chinese 1 839 premolars. Methods To observe the morphology of non-carious cervical lesions and the situation of abrasion on the occlusal surface. The depth and width of cervical lesions were measured. Results Wedge-shaped defect was found in 644 premolars and the incidence was 35.02%. There was significant difference in incidence of lesion among different kinds of premolars（P<0.05）. And the incidence of cervical lesion between teeth with and without abrasion was different（ P<0.05）. As abrasion on the occlusal surface developed, the depth and width of lesions increased（P<0.01）. The morphology of lesion was related to abrasion on the occlusal surface（P<0.05）Conclusion The development of wedge- shaped defect in premolar is associated with its occlusal abrasion. Related Articles | Metrics