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  1. Article ; Online: Effect of socioeconomic and malocclusion-related factors on duration of orthodontic treatment by fixed appliance: A retrospective study.

    Shi, Xueming / Wu, Bin / Cao, Dan / Liu, Jingjing / Qian, Xinyao / Liu, Mao / Tang, Miaoning / Yin, Cheng / Liu, Luwei / Yan, Bin

    Orthodontics & craniofacial research

    2023  Volume 26, Issue 4, Page(s) 650–659

    Abstract: Objectives: The aims of this study were to evaluate the effect of related factors that influence orthodontic treatment time and to identify the predictors of orthodontic treatment duration in a Chinese population.: Materials and methods: Information ... ...

    Abstract Objectives: The aims of this study were to evaluate the effect of related factors that influence orthodontic treatment time and to identify the predictors of orthodontic treatment duration in a Chinese population.
    Materials and methods: Information for 29 sociodemographic, malocclusion and orthodontic treatment characteristics was collected. Patients were divided into two groups: the duration ≤24 months group and duration >24 months group. The treatment dates of the initial visit and end of orthodontic treatment were obtained to calculate duration. The data were subjected to univariate and multivariate logistic regression modelling to quantify the association between characteristics and the treatment duration; odds ratios (ORs) and 95% confidence intervals (95% CIs) are reported.
    Results: Of 2120 patients, 704 patients (mean age, 15.9 ± 6.0 years) were included. Age, extraction, Bolton ratio (overall), rotated teeth, overjet and crowding (lower arch) were predictors for duration. The nomogram based on predictive factors exhibited strong discrimination ability, with concordance indices of 0.755 (95% CI = 0.712-0.798) in the training cohort model and 0.717 (95% CI = 0.647-0.787) in the validation cohort model. The calibration curves for the training and validation cohorts showed that the probabilities of the nomogram agreed well with actual probabilities.
    Conclusions: Young age, non-extraction and severe crowding (lower arch) can increase the chance of durations of ≤24 months. Rotated teeth, excessive overjet and Bolton ratio (overall) can increase the chance of durations of >24 months.
    MeSH term(s) Humans ; Child ; Adolescent ; Young Adult ; Adult ; Retrospective Studies ; Orthodontics, Corrective ; Malocclusion/therapy ; Overbite ; Orthodontic Appliances, Fixed ; Socioeconomic Factors
    Language English
    Publishing date 2023-04-10
    Publishing country England
    Document type Journal Article
    ZDB-ID 2076514-9
    ISSN 1601-6343 ; 1601-6335
    ISSN (online) 1601-6343
    ISSN 1601-6335
    DOI 10.1111/ocr.12661
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Zs.A 5412: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
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    Jg. 1995 - 2021: Lesesall (2.OG)
    ab Jg. 2022: Lesesaal (EG)

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  2. Article ; Online: Garnet Structure-Activated Warm White Light Phosphors Ca

    Zhou, Lingbo / Chen, Rujia / Jiang, Xiliang / Zhang, Tianqing / Shi, Xueming / Leng, Zhuang / Yang, Yimin / Zhang, Zhipeng / Zuo, Chunyu / Li, Chun / Yang, Weiling / Lin, Hai / Liu, Lina / Li, Shasha / Zeng, Fanming / Su, Zhongmin

    Inorganic chemistry

    2024  Volume 63, Issue 2, Page(s) 1274–1287

    Abstract: A series of ... ...

    Abstract A series of Ca
    Language English
    Publishing date 2024-01-02
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1484438-2
    ISSN 1520-510X ; 0020-1669
    ISSN (online) 1520-510X
    ISSN 0020-1669
    DOI 10.1021/acs.inorgchem.3c03739
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article: [Three dimensional finite element analysis of tooth movement tendency in maxilla using mini-screw cooperated with upper accentuated-curve to close tooth space].

    Wu, Peirong / Zhu, Xianchun / Yan, Sen / Zhang, Xian / Shi, Xueming

    Hua xi kou qiang yi xue za zhi = Huaxi kouqiang yixue zazhi = West China journal of stomatology

    2012  Volume 30, Issue 6, Page(s) 635–640

    Abstract: Objective: In order to find out the cause of molar intrusion and how to avoid molar intrusion, we analyze the movement tendency of tooth by changing the angles of upper accentuated-curve and the height of free traction hook.: Methods: Spiral CT ... ...

    Abstract Objective: In order to find out the cause of molar intrusion and how to avoid molar intrusion, we analyze the movement tendency of tooth by changing the angles of upper accentuated-curve and the height of free traction hook.
    Methods: Spiral CT scanning and Mimics 10.0 software were employed in this study to construct the three dimensional finite element model of maxillary teeth, periodontal ligaments and alveolar bone as well as the inch stainless steel upper accentuated-curve archwires with different angles (5 degrees, 10 degrees, 15 degrees, 20 degrees, 25 degrees) and the free traction hook with different height (2.1, 4.0, 5.5 mm). By exerting 1.5 N backward force to analysis the displacement trend of maxillary tooth.
    Results: Upper accentuated-curve archwires made the incisors labially tip, intruse, distally upright and mesilabially torsion; made the canines labially tip, prolong, mesial-tipped and mesi-labially torsion; made the second premolars and the first molars buccal tip, intruse, distal upright and mesi-labially torsion. With the angle of upper accentuated-curve archwires increased, all tooth movement tendency increased; while with the height of free traction hook increased, all tooth movement tendency decreased.
    Conclusion: When the angle of upper accentuated-curve archwires increased, the extent of molar intrusion increased, but when the height of free traction hook increased, the degree of molar intrusion decreased. The degree of molar intrusion was minimum using 5 degrees upper accentuated-curve archwires cooperated with 5.5 mm free traction hook.
    MeSH term(s) Bicuspid ; Bone Screws ; Finite Element Analysis ; Humans ; Incisor ; Maxilla ; Molar ; Periodontal Ligament ; Tooth ; Tooth Movement Techniques
    Language Chinese
    Publishing date 2012-12
    Publishing country China
    Document type Journal Article
    ZDB-ID 1202342-5
    ISSN 1000-1182
    ISSN 1000-1182
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Zs.A 4073: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
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  4. Article: [Influence of different surface treatments on porcelain surface topography].

    Tai, Yinxia / Zhu, Xianchun / Sen, Yan / Liu, Chang / Zhang, Xian / Shi, Xueming

    Hua xi kou qiang yi xue za zhi = Huaxi kouqiang yixue zazhi = West China journal of stomatology

    2013  Volume 31, Issue 1, Page(s) 57–60

    Abstract: Objective: To evaluate the influence of different surface treatments on porcelain surface topography.: Methods: Metal ceramic prostheses in 6 groups were treated according to the different surface treatment methods, and the surface topography was ... ...

    Abstract Objective: To evaluate the influence of different surface treatments on porcelain surface topography.
    Methods: Metal ceramic prostheses in 6 groups were treated according to the different surface treatment methods, and the surface topography was observed through scanning electron microscope (SEM). Group A was the control one (untreated), group B was etched by 9.6% hydrofluoric acid(HF), group C was deglazed by grinding and then etched by 9.6% HF, group D was treated with Nd: YAG laser irradiation(0.75 W) and HF etching, group E was treated with Nd: YAG laser irradiation (1.05 W) and HF etching, and group F was treated with laser irradiation (1.45 W) and HF etching.
    Results: Surface topography was different in different groups. A lot of inerratic cracks with the shapes of rhombuses and grid, and crater with a shape of circle were observed on the ceramic surface after treatment with energy parameters of 1.05 W Nd: YAG laser irradiation and 9.6% HF etching (group E). Surface topography showed a lot of concaves on the inner wall of the cracks, and the concaves with diameter of 1-5 microm could be observed on the inner wall of the holes, which had a diameter of 20 microm under SEM.
    Conclusion: The use of Nd: YAG laser irradiation with the energy parameters of 1.05 W and the HF with a concentration of 9.6% can evenly coarsen the porcelain surface, that is an effective surface treatment method.
    MeSH term(s) Ceramics ; Dental Bonding ; Dental Porcelain ; Hydrofluoric Acid ; Lasers, Solid-State ; Shear Strength ; Surface Properties
    Chemical Substances Dental Porcelain (12001-21-7) ; Hydrofluoric Acid (RGL5YE86CZ)
    Language Chinese
    Publishing date 2013-02
    Publishing country China
    Document type English Abstract ; Journal Article
    ZDB-ID 1202342-5
    ISSN 1000-1182
    ISSN 1000-1182
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Zs.A 4073: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
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    ab Jg. 2022: Lesesaal (EG)

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  5. Article ; Online: Is Acupuncture Effective for Hypertension? A Systematic Review and Meta-Analysis.

    Zhao, Xiao-Feng / Hu, Han-Tong / Li, Jia-Shen / Shang, Hong-Cai / Zheng, Hai-Zhen / Niu, Jian-Fei / Shi, Xue-Ming / Wang, Shu

    PloS one

    2015  Volume 10, Issue 7, Page(s) e0127019

    Abstract: Objective: To determine the efficacy of acupuncture for hypertension.: Method: Seven electronic databases were searched on April 13, 2014 to include eligible randomized controlled trials (RCTs). Data were extracted and risk of bias was assessed. ... ...

    Abstract Objective: To determine the efficacy of acupuncture for hypertension.
    Method: Seven electronic databases were searched on April 13, 2014 to include eligible randomized controlled trials (RCTs). Data were extracted and risk of bias was assessed. Subgroup analyses and meta- analysis were performed.
    Results: 23 RCTs involving 1788 patients were included. Most trials had an unclear risk of bias regarding allocation concealment, blinding, incomplete outcome data and selective reporting. Compared with sham acupuncture plus medication, a meta-analysis of 2 trials revealed that acupuncture as an adjunct to medication was more effective on systolic (SBP) and diastolic (DBP) blood pressure change magnitude (n=170, SBP: mean difference (MD)= -7.47,95% confidence intervals (CI):-10.43 to -4.51,I2 =0%; DBP: -4.22,-6.26 to -2.18, 0%).A subgroup analysis of 4 trials also showed acupuncture combined with medication was superior to medication on efficacy rate (n=230, odds ratio (OR)=4.19, 95%CI: 1.65 to 10.67, I2 =0%). By contrast, compared with medication, acupuncture alone showed no significant effect on SBP /DBP after intervention and efficacy rate in the subgroup analysis. (7 trials with 510 patients, SBP: MD=-0.56, 95%CI:-3.02 to 1.89,I2 =60%; DBP: -1.01,-2.26 to 0.24, 23%; efficacy rate: 10 trials with 963 patients, OR=1.14, 95% CI: 0.70 to 1.85, I2 =54%).Adverse events were inadequately reported in most RCTs.
    Conclusion: Our review provided evidence of acupuncture as an adjunctive therapy to medication for treating hypertension, while the evidence for acupuncture alone lowing BP is insufficient. The safety of acupuncture is uncertain due to the inadequate reporting of it. However, the current evidence might not be sufficiently robust against methodological flaws and significant heterogeneity of the included RCTs. Larger high-quality trials are required.
    MeSH term(s) Acupuncture Therapy/methods ; Antihypertensive Agents/therapeutic use ; Blood Pressure/drug effects ; Combined Modality Therapy ; Humans ; Hypertension/physiopathology ; Hypertension/therapy ; Randomized Controlled Trials as Topic ; Treatment Outcome
    Chemical Substances Antihypertensive Agents
    Language English
    Publishing date 2015-07-24
    Publishing country United States
    Document type Journal Article ; Meta-Analysis ; Research Support, Non-U.S. Gov't ; Review ; Systematic Review
    ZDB-ID 2267670-3
    ISSN 1932-6203 ; 1932-6203
    ISSN (online) 1932-6203
    ISSN 1932-6203
    DOI 10.1371/journal.pone.0127019
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article: Effects of alcohol intake on penile structure and function in rats.

    Gan, Xiu-guo / Shi, Xue-ming / Liu, Rui / An, Rui-hua / Wang, Yong-quan

    Chinese medical sciences journal = Chung-kuo i hsueh k'o hsueh tsa chih

    2007  Volume 22, Issue 3, Page(s) 192–195

    Abstract: Objective: To investigate the effects of alcohol intake on penile structure and function in rats.: Methods: Thirty adult male Wistar rats were randomly divided into two groups: control group and alcohol intake group. They were administered with 2 mL ... ...

    Abstract Objective: To investigate the effects of alcohol intake on penile structure and function in rats.
    Methods: Thirty adult male Wistar rats were randomly divided into two groups: control group and alcohol intake group. They were administered with 2 mL of normal saline and 40% alcohol solution respectively through gastric tubes every day. Three months later, the animal model of alcohol intake was evaluated by modified Nayagida's method, and the effects of alcohol on the rats were studied by sexual behavior, the number of apomorphine-induced penile erection, level of testosterone in the sera, and the content of penile smooth muscle.
    Results: The scores of animal model of alcohol intake evaluated by Nayagida's method were 0.66 +/- 2.05 in the control group and 9.26 +/- 5.50 in the alcohol intake group (P < 0.05), which indicated that an animal model of alcohol intake was successfully established. Sexual behavior, the number of apomorphine-induced penile erection, testosterone level in the sera, and the content of penile smooth muscle of the alcohol intake group were all statistically different as compared with the control group (P < 0.05).
    Conclusion: Alcohol intake induces sexual dysfunction in rats, which may be due to the decline of testosterone level in the sera and decline of penile smooth muscle.
    MeSH term(s) Animals ; Ethanol/adverse effects ; Female ; Male ; Penis/anatomy & histology ; Penis/drug effects ; Penis/physiology ; Rats ; Rats, Wistar ; Sexual Behavior, Animal ; Testosterone/blood
    Chemical Substances Ethanol (3K9958V90M) ; Testosterone (3XMK78S47O)
    Language English
    Publishing date 2007-09
    Publishing country China
    Document type Journal Article
    ZDB-ID 1083365-1
    ISSN 1001-9294
    ISSN 1001-9294
    Database MEDical Literature Analysis and Retrieval System OnLINE

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