OBJECTIVETo assess the quality of reporting by randomized controlled trial (RCT) related to dental implants in China during 2000 to 2012 by using the revised Jadad scale and consolidated standards of reporting trials (CONSORT) (2010) statement.

METHODSThe following electronic databases were searched: Chinese Biomedical Literature Database, Database for Chinese Technical Periodicals, China National Knowledge Infrastructure, PubMed, and EMBASE. A total of 19 journals of stomatology in China were also searched manually. The qualities of RCT with dental implant published between 2000 and 2012 were assessed using CONSORT (2010) statement and revised Jadad scale.

RESULTSTwenty-eight RCTs related to dental implants were identified. The quality of reporting in 28 articles was low. The mean revised Jadad score was 1.29 ± 0.71 and the CONSORT (2010) score was 9.75 ± 3.60.

CONCLUSIONThe methodological qualities of the included studies on dental implants are generally low, and reporting quality remain unsatisfactory.

Objective To estblish a HPLC method for content determination of ferulic acid in compound prescribe Motherwort Herb capusle. Method The column ZORBAXSB-C18 was used with Acetonitrile-0.2% phosphoric acid aqueous solution (12∶88) as mobile phase, and detective wavelength was 274 nm, the flow rate was 1.0 mL/min. Result Within the range of 0.8～13 ?g, ferulic acid presented a fine linear relationship (r =0.999 99, n =6). The average recovery was 103.0% (RSD=0.4%, n=5). Conclusion The method is suitable, accuracy is high and reproducibility is good, recovery is high, and can control the quality of compound prescribe Motherwort Herb capusle.

Objective To establish a HPLC method for determination of Peoniflorin in Zhongzi Sanda Pill.Method Kromasil-C18 column(5 ?m,4.6 mm?250 mm) was used.Mobile phase was methanol-water(30:70).The detective wavelength was at 230 nm.The flow rate was 1.0 mL/min.Results There was a good linear relationship between the injection amount 0.11～2.14 ?g and a good peak form for Peoniflorin in Zhongzi Sanda Pill.The average recovery rate was 98.2%(RSD=1.72%,n =6).Conclusion This method is convenient,effective and accurate for the quality control of Peoniflorin in Zhongzi Sanda Pill.

Objective: To study the classification of congenital velopharyngeal insufficiency(CVPⅠ).Methods:30 patients with CVPI were divided into 2 groups.The patients in group I were with submucous cleft palate,those in group Ⅱwere without noticible abnormality.A11 patients received oral examination and 1ateral cephalogram examination. ANS-PNS(1ength of hard palate),PNS-U(velar 1ength),PNS-PPW(pharyngeal depth),SPT(thickness of soft palate),need ratio, elongation and upward angle of soft palate were measured. Results:PNS-U was shorter and PNS-PPW was longer in the patients than in the health controls (P

BACKGROUND: Traditional acoustic examination is to make subjective descriptions of abnormal acoustic features, or carry out quantitative analysis of vowels with sensitive consonant utterance only subjected to qualitative analysis.OBJECTIVE: To make quantitative analysis of the acoustic features of sensitive consonants before and after restoration with complete denture. DESIGN: Randomized controlled experiment.SETTING: Department of Prosthodontics; Department of Oral & Maxillofacial Surgery, Ninth People's Hospital of Shanghai Second Medical University.PARTICIPANTS: Totally 30 edentulous patients who received treatment in the Department of Prosthodontics, Ninth People's Hospital of Shanghai Second Medical University, between November 2001 and March 2003-03were enrolled in this study. They were divided into plastic base group and metal base group with 15 patients in each group according to the denture base; the two groups of patients were matched in baseline data such as sex and age. Inclusion criteria: had no history of denture repairing, aged 45-75years, had received certain years of education, could speak Mandarin with out obvious dialect, had no obvious dysaudia (≤ 20dB), and had not received acoustic therapeutic training.METHODS: Plastic base group: the plastic base was 2.0-2.5 mm thick,with smooth anterior palate polished surface. Metal base group: the metal base was 1.0-1.5 mm thick, covering entire palate and forming palatal rugae, which transformed to net base at alveolar ridge side, and cheek base was plastic. The scope of base, the posterior bank of denture, overbite of anterior teeth, coverage degree, occlusal surface and 1/3 vertical range beneath surface were designed conventionally. Utterance of/zi/ and/ji/ by edentulous patients was detected before restoration, at the beginning and after restoration 1, 2, 4, 8 weeks respectively, with the results analyzed with the assistance of computer acoustic analysis system, the linear forecast technology and fast Fourier transformation were used to record the 1st and 3rdformants, the computer acoustic analytic sampling frequency was 10 000 Hz and he step number of linear forecast technology was 12.MAIN OUTCOME MEASURES: The differences in acoustic parameters between the detected utterances/zi/and/ji/.RESULTS: According to the intention-to-treat analysis, 30 patients were enrolled in this experiment and all of them entered the result analysis. ①When utterance/zi/was detected, most of 1st formants were found gradually reduced in plastic base group and metal base group after restoration compared to that before restoration, most obviously at week 8 [(353.67±35.65),(322.60±44.03); (332.27±37.10), (302.20±40.39); P ＜ 0.05]. However,the 3rd formant variance was different between the two groups, presented by gradually ascending in plastic base group and gradually descending in metal base group. ② When the detected utterance was/ci/, changes of the 1st formants in two groups were basically the same as /zi/; moreover the changes of the 3rd formants also displayed different tendency in the two groups.CONCLUSION: Reducing the basal thickness of complete denture and reconstructing palatal rugae will be helpful for the acoustic functional restoration in patients with dentition defects. The computer acoustic analysis system can be used for quantitative analysis of acoustic features of patients before and after restoration with complete denture.

Objective To observe the effect of hyperthyroidism decoction on thyroid hormone and thyroid pathological changes of ex-perimental hyperthyroid rats. Methods 40 rats were randomly divided into four groups: Normal group,hyperthyreosis model group, western drugs control group and hyperthyroidism decoction group. The model rats were constructed by drenching Youjiale. Hyperthyroidism decoction group were given hyperthyroidism decoction of respective dosage, western drugs control group were given propylthiouracil. The serum contents of T3, T4, FT3, FT4 and TSH were determined by radio-immunity method, the thyroid pathological changes effected by hyperthyroidism de-coction were observed. Results Compared with model group, the contents of serum T3, T4, FT3, FT4, of hyperthyroidism decoction group were decreased, while the contents of serum TSH were increased. Hyperthyroidism decoction may improve thyroid pathological changes of ex-perimental hyperthyroid rats. Conclusion Hyperthyroidism decoction can effectively improve the thyroid function of experimental hyperthy-roid rats.

Objective To investigate the effect of di-2-ethylhexyl phthalate (DEHP) on the proliferation of SK-N-SH human neuroblastoma cells and its underlying mechanism. Methods Cells were cultured in estrogen-free improved Dulbecco's Modified Eagle's Medium and then divided into 5 groups: no treatment (control group); treated with 17β-estradiol (E_2 group); treated with DEHP (DEHP group); treated with both E_2 and phosphatidylinositol-3-kinases (PI3K) inhibitor LY294002 (E_2 + LY294002 group); treated with both DEHP and LY294002 (DEHP + LY294002 group). The absorbance value (AV) was measured on day 0, 2, and 5. DNA proliferation index (PI) and apoptotic index (AI) were determined by flow cytometry on day 5. Caspase-3 protein, protein-serine-threonine kinase (Akt) and phosphor-Akt (Ser473) protein expression were analyzed by Western blot on day 5. Results The AV of All groups increased on day 2, and 5. The AV of E_2 and DEHP groups were higher than that of the control group (P<0. 001), but the AV of E_2 + LY294002 and DEHP + LY294002 groups were lower than those of E_2 and DEHP groups (P<0.01) on day 2 and 5. On day 5, PI of E_2 and DEHP groups were also higher than that of control (P<0.01). However, PI of E_2 + LY294002 and DEHP + LY294002 groups were lower than those of E_2 and DEHP group (P<0.01) on day 5. There was no significant difference in AI and caspase-3 protein expression among the groups. At the same time, phosphor-Akt (Ser473) protein expression of E_2 and DEHP groups increased obviously, compared with the control group. Compared with E_2 and DEHP groups, E_2 + LY294002 and DEHP + LY294002 groups decreased significantly. However, Akt protein expression was equal among those groups. Conclusions DEHP can promote the growth of SK-N-SH cells to a level similar to that of E_2, with activation of the PI3K/Akt signaling pathway.

Objective: To establish an LC-MS/MS method for the determination of 4-( 4-amino-3-fluorophenoxy )-N-methylpyri-dine-2-carboxamide ( AFP-PMA) as a genotoxic impurity in regorafenib. Methods: The content of AFP-PMA was determined by an LC-MS/MS method. A Waters XBridge Shield RP18 column was adopted to separate the samples and the column temperature was 50℃. The mobile phase consisted of 5 mmol·L-1ammonium acetate aqueous (A)-acetonitrile (B) with gradient elution (0~9 min, 5%B→90%B) at a flow rate of 1. 0 ml·min-1. An electrospray ionization source (ESI) was used in a positive-ion and multiple reactions monitoring mode. The ion channel was m/z 262. 2→244. 1. Results:The standard curve was linear within the range of 2. 41-980. 90 ng·ml-1(r=0. 9998) and the limit of quantification was 8. 02 ng·ml-1. The limit of detection was 2. 41 ng·ml-1, which was e-quivalent to 0.000241% for the concentration of regorafenib. The average recovery was 100.95% and RSD was 2.37% (n=9). Conclusion:The method has good specificity, promising accuracy and high sensitivity, which can be used for determining the trace genotoxic impurity AFP-PMA in regorafenib.

Objective To investigate the clinical effect and safety of EEG biofeedback therapy combined with mirtazapine in the treatment of depressive disorder.Methods 124 patients with depressive disorder were selected and randomly divided into the observation group and the control group,62 cases in each group.The control group was given mirtazapine treatment,while the observation group was given EEG biofeedback therapy combined with mirtazapine.All the two groups were treated for 8 weeks.Before and 2,4,8 weeks after treatment,the clinical effects in the two groups were evaluated by Hamilton depression scale (HAMD),Montgomerie depression rating scale (MADRS) and the clinical global impression scale (CGI).The side effects scale(TESS) assessment was used to assess the side effects.And the serum norepinephrine (NE),5-hydroxytryptamine (5-HT) and dopamine (DA) levels were measured before and 8 weeks after treatment.Results The total effective rate of the observation group was 87.5％,which was significantly higher than 66.1％ in the control group (x2 =7.213,P ＜ 0.05).In the two groups,2,4,8 weeks after treatment,the HAMD scores were significantly lower than those before treatment (t =9.391,19.349,26.349,5.026,12.610,19.518,all P ＜ 0.05),the M ADRS scores were significantly lower than those before treatment (t =8.646,22.190,33.101,4.986,13.185,25.959,all P ＜ 0.05),and the CGI scores were significantly lower than those before treatment(t =17.471,29.482,42.256,13.136,28.358,35.661,all P ＜ 0.05).In the observation group,after treatment for 2,4,8 weeks,the HAMD scores were significantly lower than those in the control group(t =4.093,4.537,5.655,all P ＜ 0.05),and the MADRS scores were significantly lower than those in the control group (t =3.622,9.740,7.490,all P ＜ 0.05),while the CGI scores were significantly lower than those in the control group(t =8.608,11.024,12.598,all P ＜ 0.05).After treatment,the levels of 5-HT,NE and DA were (148.5 ± 4.9) ng/mL,(60.6 ± 4.2) ng/L and (78.0 ± 4.1) ng/L in the observation group,which were significantly higher than before treatment [(79.8 ± 4.3) ng/mL,(30.3 ± 4.0) ng/L and (43.5 ± 4.0) ng/L,t =82.977,41.134,46.837,all P ＜ 0.05].In the control group after treatment,the levels of 5-HT,NE and DA were (125.4 ± 4.1) ng/mL,(40.2 ± 4.0)ng/L and (50.3 ± 4.3)nig/L,which were significantly higher than those before treatment [(79.2 ± 3.9)ng/mL,(30.5 ±4.1)ng/L and (43.2 ±3.6)ng/L,t =64.287,13.334,9.969,all P ＜0.05],but which those in the observation group increased more significantly (t =28.469,27.695,36.286,all P ＜ 0.05).4 weeks and 8 weeks after treatment,the TESS scores in the observation group were (3.0 ± 1.0) points and (4.3 ± 1.2) points,which in the control group were (2.8 ± 1.2) points and (4.1 ± 1.3) points,there were no significant differences in terms of TESS scores (t =1.150,0.846,all P ＞ 0.05).Conclusion EEG biofeedback therapy combined with mirtazapine in the treatment of depression is better,the adverse reactions is not significantly increased,and it also has higher clinical safety compared with mirtazapine alone.

Objective:To study the a feasibility of modified pharyngoplasty in the treatment of velopharyngeal insufficiency.Methods:30 cases of velopharyngeal insufficiency were treated with a modified pharyngoplasty followed by speech training.The effects of the treatment were evaluated by blowing test (BT),chinese articulation inteligibility test (CIT) and hypernasality observation(HO).Results:Before and after treatment BT was 1～26 and 8～40,CIT(%) 20～60 and 47～82,HO(cases) 30 and 3,respectively.Conclusions:The modified pharyngoplastic surgery is feasible in the treatment of velophayngeal insufficiency.