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Gao Y.,Guangdong Medical College | Lin Z.,Zunyi Medical College | Rodella L.F.,University of Brescia | Buffoli B.,University of Brescia | And 2 more authors.
Journal of Cranio-Maxillofacial Surgery

Introduction The anterior maxillary region is a common site for supernumerary teeth. The aim of this study was to compare the use of piezoelectric ultrasonic bone surgery for the extraction of supernumerary teeth and the use of traditional method using bone chisels.Methods 60 patients with supernumerary anterior maxillary teeth were considered in this study. They were randomly divided into two groups: 1) the control group, in which the supernumerary teeth were extracted using the traditional bone chisels method; 2) the experimental group, in which the supernumerary teeth were extracted using a piezoelectric ultrasonic bone surgery system. The operative time, amount of bleeding and post-operative pain were quantified and compared; in addition, the post-operative swelling was evaluated.Results We observed a significant decrease (P < 0.01) in the amount of bleeding and post-operative pain in the experimental group respect to the control group; but the operative time was significantly increased (P < 0.01) with the use of piezoelectric system. In addition, post-operative swelling resolved more quickly in the experimental group.Conclusion Although the operative time for the extraction of the maxillary anterior supernumerary teeth was longer using the piezoelectric ultrasonic bone surgery system, the amount of bleeding and the post-operative complications were less, so this system could be considered an appropriate surgical method for the extraction of supernumerary teeth. © 2014 European Association for Cranio-Maxillo-Facial Surgery. Published by Elsevier Ltd. All rights reserved. Source

Gao Y.,Longgang District Central Hospital | Wu X.,Longgang District Peoples Hospital | Zhou L.,Longgang District Central Hospital | Jiang A.,Longgang District Central Hospital | And 3 more authors.
Applied Mechanics and Materials

Objective: The aim of the study was to explore most effective way to control infection during implant treatment. Methods: The study was carried out in two implant operating surgeries (Surgery A, Surgery B), which were set up air disinfectant machine and ultraviolet disinfection respectively. For baseline measurements, the number of bacterials in the air of the two surgeries was counted at 5min, 15min, 30min, 45min and 60min before sanitizing. To compare sanitizing effect of static air disinfection, air samples from these surgeries were collected for bacterial cultivation after sanitizing for 5min, 15min, 30min, 45min and 60min, and the the sterilization rate was calculated. To compare dynamic air disinfection, the two surgeries were sterilized before implant surgery, and the air samples were collected at 5min, 15min, 30min, 45min, 60min after implant operation. Results: There were no significant differences between air disinfectant machine and ultraviolet disinfection in static air disinfection (p<0.05). However, air disinfectant machine was more effective in dynamic air disinfection. Conclusion: Air disinfectant machine is the most effective way for the prevention of nosocomial infections. Source

Li P.,Longgang District Peoples Hospital | Zhu Z.-Q.,Longgang District Peoples Hospital | Hou M.,Longgang District Peoples Hospital | Shi Z.-J.,Southern Medical University
Chinese Journal of Tissue Engineering Research

BACKGROUND: The outcomes of SL-Plus® stem in primary total hip arthroplasty have been proved good, but whether SLR-Plus® revision stem can obtain a good outcome in revision hip arthroplasty needs more studies. OBJECTIVE: To observe the clinical results of revision hip arthroplasty with Zweymüller SLR-plus® stem. METHODS: Revision hip arthroplasty of 41 hips in 39 patients was performed from November 1997 to May 2013 using SLR-plus® stem. There were 26 hips (male) and 15 hips (female). They were at the age of 34-73 years old, 53 on average. In the 41 hips, 36 cemented and 5 uncemented femoral prostheses were used. Prosthetic changes on radiographs were observed. In accordance with Brooker classification, heterotopic ossification was classified to record the region and incidence of heterotopic ossification. Hip joint function was evaluated using Harris Hip Score, and survival rate of the prosthesis was analyzed. RESULTS AND CONCLUSION: A total of 31 patients (33 hips) were followed up for 1 to 16 years. The mean preoperative Harris hip score of 34 (range, 13-64) points improved to 85 (range, 55-94) points at the time of final follow-up. 32 hips (97%) had an excellent result. A 1 mm width radiolucent line was found in 1 femoral component without any symptom. Osteolysis and migration were seen in 1 hip, which needed re-revision. Heterotopic ossification developed in 9 hips, including 2 hips of Brooker grade 1, 4 hips of grade 2 and 3 hips of grade 3. Nore-infection was found. Kaplan-Meier survivorship was 92% with radiographic loosening as the end point. Results demonstrated that the SLR-Plus® stem has sufficient immediate and long-term stability, which is reliable for patients undergoing hip revision surgery. © 2014 Journal of Clinical Rehabilitative Tissue Engineering Research. All rights reserved. Source

Hu W.-X.,Longgang District Peoples Hospital | Hu W.-X.,Southern Medical University | Huang X.-H.,Longgang District Peoples Hospital
International Journal of Ophthalmology

AIM: To observe the clinic characters of early stage of the Posner-Schlossman syndrome to aid the diagnosis. METHODS: Select 31 patients 31 eyes from 2004-06 to 2011-02 with Posner-Schlossman syndrome whose signs and symptoms can be observed in early stage in our hospital. Having got records within the first 24 hours and succedent two days, which include vision, hyperemia of the eyeball, corneal edema, keratic precipitates (KP), Dyndall's sign, pupillary light reflex, intraocular pressure. Main symptoms and diagnosis of the day were recorded as well. RESULTS: Although all 31 patients could be diagnosed as Posne-Schlossman syndrome eventually, in the first 24 hours only 15 patients'(48%) diagnosis were Posner-Schlossman syndrome, in the succedent two days 23 (74%) and 29 patients'(93%) diagnosis were Posner-Schlossman syndrome in sequence. CONCLUSION: Posner-Schlossman syndrome can be divided into three types clinically: typical Posner-Schlossman syndrome, KP type and high-intraocular-pressure type. The last two types are more difficult to diagnose in early stage. KP and distending feeling of the eyeball are important signs and symptoms. Source

Tang W.B.,Longgang District Peoples Hospital
Zhongguo shi yan xue ye xue za zhi / Zhongguo bing li sheng li xue hui = Journal of experimental hematology / Chinese Association of Pathophysiology

This study was aimed to explore the correlation of mean platelet volume (MPV), fibrinogen (FIB) and blood rheology with the youth patients with cerebral infarction, so as to provide the basis for the clinical early diagnosis and treatment. The 109 patients with cerebral infarction aged between 18 - 45 were divided into three group: the large (> 10 cm(3)), middle (4 - 10 cm(3)) and small (< 4 cm(3)) area infarction; 30 healthy persons were served as control group. All the four groups were subjected to 16 examinations, such as MPV, FIB, and rheology (Lηb, Mηb, Hηb, ηp, Lηr, Mηr, Hηr, KVE, EAI, ERI, EDI, EEI, HCT, ESR). The results showed that all the MPV, FIB and rheology indexes of the different infarction groups were higher than those of healthy control group (P < 0.05). The MPV, FIB and rheology indexes in the large area infarction group were all higher than those in the small area infarction group (P < 0.05). The indexes of MPV, FIB and rheology in the various cerebral infarction area groups obviously decreased, but those did not reach to the level in the healthy control group (P < 0.05). The MPV, FIB content and rheology level correlated with infarction areas (r = 0.36, 0.29 and 0.48, respectively). It is concluded that the serious intensity of youth patients with cerebral infarction positively correlated with the levels of MPV, FIB and rheology indexes. Regular examination of above mentioned index may be useful to prevent youth patients from cerebral infraction. Source

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