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    Shanghai Journal of Stomatology    2008, 17 (4): 420-424.  
    Abstract236)      PDF (932KB)(28587)      
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    Shanghai Journal of Stomatology    2013, 22 (2): 156-159.  
    Abstract168)      PDF (524KB)(3286)      
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    Shanghai Journal of Stomatology    2008, 17 (6): 648-651.  
    Abstract219)      PDF (652KB)(3268)      
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    Shanghai Journal of Stomatology    2004, 13 (3): 198-200.  
    Abstract294)      PDF (517KB)(3126)      
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    Shanghai Journal of Stomatology    2009, 18 (6): 661-664.  
    Abstract198)      PDF (752KB)(2565)      
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    Shanghai Journal of Stomatology    2008, 17 (4): 380-392.  
    Abstract108)      PDF (547KB)(2044)      
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    Shanghai Journal of Stomatology    2011, 20 (5): 454-458.  
    Abstract104)      PDF (764KB)(1465)      
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    Shanghai Journal of Stomatology    2009, 18 (1): 44-47.  
    Abstract188)      PDF (756KB)(1384)      
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    The effects of psychological nursing on anxiety of patients in the procedure of impacted teeth extraction
    TANG Yi-qun,WAN Peng-bo,QU Dong-lin
    Shanghai Journal of Stomatology    2015, 24 (3): 367-369.  
    Abstract361)   HTML8)    PDF (455KB)(1039)      
    PURPOSE: To investigate the effects of psychological nursing on anxiety of patients during extraction of impacted teeth. METHODS: Seventy patients who required impacted tooth extraction were randomly divided into intervention group (n=35) and control group (n=35). In the intervention group, psychological nursing was performed by special nurses before,during and after the surgical procedure; In the control group, patients were informed the general knowledge of the routine treatment and care. Anxiety was evaluate with anxiety scale at the end of surgical procedure. The data was analyzed with SPSS 13.0 software package for χ2 test. RESULTS: The number of patients with anxiety in the intervention group was significantly reduced compared with the control. The difference was statistically significant (P<0.05). CONCLUSIONS: Psychological nursing assists to relieve anxiety of patients during impacted teeth removal.
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    Comparison of root resorption between self-ligating and conventional brackets using cone-beam CT
    LIU Yun,GUO Hong-ming
    Shanghai Journal of Stomatology    2016, 25 (2): 238-241.  
    Abstract350)   HTML4)    PDF (872KB)(1025)      
    PURPOSE: To analyze the differences of root resorption between passive self-ligating and conventional brackets, and to determine the relationship between passive self-ligating brackets and root resorption. METHODS: Fifty patients were randomly divided into 2 groups using passive self-ligating brackets or conventional straight wire brackets (0.022 system), respectively. Cone-beam CT was taken before and after treatment. The amount of external apical root resorption of maxillary incisors was measured on CBCT images. Student's t test was performed to analyze the differences of root apical resorption between the 2 groups with SPSS17.0 software package. RESULTS: No significant difference(P> 0.05) in root resorption of maxillary incisors was found between passive self-ligating brackets and conventional brackets. CONCLUSIONS: Passive self-ligating brackets and conventional brackets can cause root resorption, but the difference was not significant. Passive self-ligating brackets do not induce more root resorption.
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    Cited: Baidu(9)
    Experts consensus on diagnostic and therapeutic strategies for malocclusions at early developing stage
    FANG Bing, JIN Zuo-lin, BAI Yu-xing, WANG Lin, ZHAO Zhi-he, LI Wei-ran, BAI Ding, HE Hong, LIU Yue-hua, HU Min, SONG Jin-lin, CHEN Li-li, CAO Yang, WU Ting-xi, LI Song, LI Huang, SHI Jie-jun, CHU Feng-ting
    Shanghai Journal of Stomatology    2021, 30 (5): 449-455.   DOI: 10.19439/j.sjos.2021.05.001
    Abstract711)      PDF (861KB)(994)      
    Early orthodontic intervention remains a controversial notion in current dental care regime. Whilst early orthodontic treatment for children is the province for orthodontic specialists, a growing number of general practitioners, who may not possess sufficient specialty knowledge, are also involved, raising the concerns about the propriety and quality of their treatment modalities. However, orofacial development of children and adolescents is in a very complicated environment. Comprehensive theoretical knowledge and a great wealth of practical experience are required to ensure the final treatment effect. The possible complications should be kept under control and fully informed to patients and their parents. In order to unify and standardize early orthodontic treatment protocol and help to promote healthy and orderly development of early orthodontic treatment, this consensus summarized the practical experience of orthodontic experts from many famous colleges and affiliated hospitals for clinical reference.
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    Cytotoxicity of a novel endodontic treatment material iRoot BP Plus to human gingival fibroblasts
    SHI Shuang1, BAO Zhi-fan1, 2, CHEN Xu1, 2, ZHANG Dan-dan1
    Shanghai Journal of Stomatology    2014, 23 (6): 681-684.  
    Abstract448)   HTML3)    PDF (490KB)(980)      
    PURPOSE: To compare the cytotoxicity of a novel endodontic treatment material iRoot BP Plus and mineral trioxide aggregate (MTA) to human gingival fibroblasts in vitro. METHODS: Cultured human gingival fibroblasts were exposed to multiple concentrations of material elutes (no dilution, 1:2 dilution, and 1:5 dilution). The test material samples were immersed and incubated in the culture medium for 1, 3 or 7 days at 37℃. The proliferation rate was evaluated using methylthiazol tetrazolium (MTT) assay. Cell relative growth rates were presented as . The data was statistically analyzed by factorial design ANOVA using SPSS 20.0 software package. RESULTS: Cell relative growth rates of the eluates of iRoot BP Plus and MTA in different concentrations ranged from 77.31% to 113.82%. The cytotoxicity grade of both materials was 0 or 1 (no cytotoxicity). There was no significant difference in the relative growth rate in different concentrations of iRoot BP plus and MTA eluates under different elution times (Fconcentration*time*material=1.393, P=0.256). CONCLUSIONS: Both iRoot BP Plus and MTA exhibit minimal level of cytotoxicity.
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    Cited: Baidu(2)
    Expression of HIF-1α in the genioglossus associated with induced bilateral intermittent nasal obstruction in young rats
    LIU Jiong, CHEN Jin-dong, NIE Ping, SHENG Xiao, ZHAO Yan-hui, XU Xiao-long, TAO Li, ZHU Min
    Shanghai Journal of Stomatology    2014, 23 (2): 138-142.  
    Abstract197)   HTML2)    PDF (981KB)(969)      
    PURPOSE: To investigate the expression of HIF-1α in the genioglossus associated with induced bilateral intermittent nasal obstruction in young rats. METHODS: Thirty 4-week-old SD rats were employed and equally divided into 3 groups. In group A, both nostrils were occluded by nose plugs. In group B, the right nostril was occluded. In group C, no obstruction of the nose was performed as control group. The obstruction time was from 8 am to 12 am everyday, and the period was 21 d and 55 d. The genioglossus was taken for HE, and immunohistochemical staining was used to detect the expression of HIF-1α. The data was analyzed with SPSS 13.0 software package. RESULTS: The rats were sacrificed at the 21th day and 55th day, respectively. The expression of HIF-1α in group A was significantly higher than that in group B and group C, and became stronger with the increasing of obstruction time. CONCLUSIONS: Oral breathing caused by bilateral intermittent nasal obstruction in young rats results in overexpression of HIF-1α in the genioglossus.
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    Cited: Baidu(1)
    Experimental evaluation of the spraying disinfection efficiency on dental models
    ZHANG Yi, FU Yuan-fei, XU Kan
    Shanghai Journal of Stomatology    2013, 22 (4): 399-401.  
    Abstract381)      PDF (419KB)(950)      
    PURPOSE: To evaluate the disinfect effect after spraying a new kind of disinfectant on the dental plaster models. METHODS: The germ-free plaster samples, which were smeared with bacteria compound including Staphylococcus aureus, Escherichia coli, Saccharomyces albicans, Streptococcus mutans and Actinomyces viscosus were sprayed with disinfectants (CaviCide) and glutaraldehyde individually. In one group(5 minutes later) and another group(15 minutes later), the colonies were counted for statistical analysis after sampling, inoculating, and culturing which were used for evaluation of disinfecting efficiency. ANOVA was performed using SPSS12.0 software package. RESULTS: All sample bacteria were eradicated after spraying disinfectants(CaviCide) within 5 minutes and effective bacteria control was retained after 15 minutes. There was significant difference between the disinfecting efficiency of CaviCide and glutaraldehyde. CONCLUSIONS: The effect of disinfection with spraying disinfectants (CaviCide) on dental models is quick and effective.
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    Cited: Baidu(2)
    A study on the thickness of buccal bone in the mandible of different vertical facial type in adults using cone-beam CT
    GU Yong-jia,LU Sheng-nan,XIA Wen-qian,ZHANG Ting,SHI Hui,GAO Mei-qin
    Shanghai Journal of Stomatology    2015, 24 (3): 335-337.  
    Abstract484)   HTML2)    PDF (431KB)(941)      
    PURPOSE: To provide some references of using micro-implant anchorage in clinical orthodontic treatment, the thickness of buccal bone of mandible of different vertical facial type in adults with cone-beam CT(CBCT) were measured. METHODS: Initial 3-dimensional images of 45 adult patients (15 men, 30 women)were reoriented by using a standardized protocol, and divided into 3 groups by angle of mandibular plane (G1: high angle,15 patients; G2: average angle, 15 patients; G3: low angle, 15 patients). After signing the informed consent form, three measurement points were defined at 4, 6, and 8mm from the alveolar crest in each measurement area. Statistical analysis was performed with SPSS11.0 software package. RESULTS: The thickness of buccal bone in mandible was thinner in G1 than in G2, and was thinnest in G3. The cortical bone thickness was thickest at the 8 mm level and thinnest at the 4mm level. CONCLUSIONS: The study suggested that the cortical bone thickness at 4mm level from the alveolar crest was safe for implantation. It is more stable when the distance of implants was more away from the alveolar crest. Patients with low mandibular plane angle should use self-tapping micro-implant anchorage.
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    Cited: Baidu(1)
    Shanghai Journal of Stomatology    2001, 10 (3): 207-209.  
    Abstract218)      PDF (2490KB)(927)      
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    Platelet-rich plasma combined with demineralized freeze-dried bone allografts for periodontal regeneration in the treatment of periodontal defects: a meta-analysis
    HU Ting, YE Guo, FAN Xiao-ping, DENG Xue-yang, LI Wen-hua, XIANG Xue-rong
    Shanghai Journal of Stomatology    2018, 27 (5): 546-553.   DOI: 10.19439/j.sjos.2018.05.022
    Abstract214)      PDF (5374KB)(926)      
    PURPOSE: The aim of this meta analysis was to assess the influence of platelet-rich plasma (PRP)combined with demineralized freeze-dried bone allografts(DFDBA) on regeneration of periodontal periodontal defects by means of evaluating clinical and radiographic outcomes in prospective human clinical trials. METHODS: The following databases such as PubMed, The Cochrane Library, EMbase, CNKI, Wanfang data and VIP data were searched on computer from inception to December, 2016. According to the inclusion and exclusion criteria, two reviewers independently extracted the data,assessed the methodological quality of the included studies. RevMan 5.2 was applied for meta analysis. RESULTS: Six papers were obtained reviewed which included 205 periodontal bone defect sites. Six articles showed that there was no significant difference in probing depth decrease between PRP combined with DFDBA and PRP or DFBDA group[MD=0.35, 95%CI(-0.09,0.79), P=0.12], but there was significant difference in clinical attachment loss increase between the two groups[MD= 0.68,95%CI(0.41,0.94),P<0.00001]. Three articles were included for evaluating bone filling, there was significant difference in the distance from the cemento-enamel junction(CEJ) to the vertical bone defect(BD)(CEJ-BD)[MD=0.71,95%CI(0.46,0.95),P<0.00001]between the two groups; there was also significant difference in the distance from the alveolar crest to the vertical bone defect(AC-BD)[MD=0.64,95%CI(0.41,0.87),P<0.00001]between the two groups. but there was no significant difference in the distance from the cemento-enamel junction(CEJ)to the alveolar crest (AC)(CEJ-AC)[MD=0.03,95%CI(-0.10,0.16),P=0.68between the two groups. CONCLUSIONS: Within the limitations of this meta analysis, PRP combined with DFDBA is superior to PRP or DFDBA alone in clinical attachment loss and bone filling ,but there was no significant difference in probing depth. However, given the limited sample size and quantity of included studies, the above findings still need to be further proved by conducting more high-quality and large-scale RCTs.
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    Shanghai Journal of Stomatology    2003, 12 (4): 260-262.  
    Abstract314)      PDF (647KB)(917)      
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    Classification for mandibular deviation and facial asymmetry and its clinical significance
    SHEN Gang
    Shanghai Journal of Stomatology    2021, 30 (1): 1-6.   DOI: 10.19439/j.sjos.2021.01.001
    Abstract1252)      PDF (4956KB)(917)      
    Judged from the clinical manifestations, etiological mechanisms and jaw morphological structures, malocclusions with mandibular deviation and facial asymmetry are classified into three main categories, i.e., those with mandibular positioning factors, those with mandibular condyle defects, and those with jaw congenital deformities. In the first category, three subtypes, including mandibular rotation caused by dentitional irregularities, by dental compensation and by habitual posturing, are further defined. In the second category, mandibular deviation caused by condylar asymmetrical resorption or hyperplasia are defined as the two subtypes. The third category is further divided into two subtypes, i.e., jaw and facial asymmetry resulting from maxillary or mandibular structural deformities. The prime goal of orthodontic therapy is to displace and restore the deviated mandible to its right position, followed by correction of occlusal intercuspation. As an important procedure of the whole treatment protocol, It is critical to detect and localize the correct mandibular position by manipulation and then register it by wax pattern and articulator transferring. For the cases with mandibular functional elements and condylar asymmetrical length, the treatment modalities include orthopedic repositioning of the mandible by using occlusal and bite plane, SGTB and SGHB therapies; for cases with growth and developmental anomalies, orthognathic intervention should be an optimal solution.
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    Experimental evaluation of pure traditional Chinese medical mouth rinse on skin and mucosa stimulation and bacteriostatic-bactericidal effect
    MA Mu-zhi, LIU Zhao-jun, LU Jia-tong, CHEN Gong-pei, YU Fei, ZHENG Yuan-na
    Shanghai Journal of Stomatology    2014, 23 (5): 561-565.  
    Abstract566)   HTML2)    PDF (1119KB)(913)      
    PURPOSE: To observe the stimulating effect of pure traditional Chinese medical mouth rinse (PTCMMR) on skin and mucosa and to evaluate the efficacy of PTCMMR on inhibiting and killing oral common bacteria. METHODS: PTCMMR and normal saline (NS) were separately dripped onto 14 five-month rabbits' left and right eyes for 7 days, and were smeared on the left and right side of buttocks, abdomens, back of 10 seven-month guinea pigs (after hair removal) once a day for comparison between the two sides. Five animals were sacrificed after 3 and 7 days of smearing to make pathological sections. Bacterium suspension with Staphylococcus aureus, Escherichia coli, Candida albicans, Pseudomonas aeruginosa and Streptococcus B were dropped to nutrient solution containing different concentrations of PTCMMR or compound Borax solution to observe the growth situation of bacteria. Inhibition zone diameters were measured after 18h of incubation within 37℃ incubator. The data was statistically analyzed using SPSS 17.0 software package. RESULTS: There was no obvious change such as redness, dermatitis between rabbits’ left eye conjunctiva and the control group. The bacteriostatic and bactericidal effect of anaerobe and aerobe with dropping of PTCMMR was stronger than that of control group. CONCLUSIONS: PTCMMR has no stimulation to skin and mucosa, while it has strong efficacy to inhibit and kill oral common bacteria.
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    Cited: Baidu(2)