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Objective To explore the clinical effect of autogenous bone,allograft bone and BMP synthetic bone in the treatment of lum-bar spondylolisthesis,and provide more basis to choose transplant material.Methods A total of 96 patients with lumbar spondylolisthesis were chosen as research subjects,who were cured in our hospital from January 2014 to January 2015.They were divided into group A(who were treated with autogenous bone),group B(who were treated with allograft bone)and group C(who were treated with BMP synthetic bone), according to prospective study method.The indicators of the operation,postoperative adverse reactions,change of intervertebral disc height and bone graft fusion rate of three groups were compared.Results Difference of the operation indexes of three groups had no statistical sig-nificance(P >0.05).The incidences of adverse reactions in group A and group C had no statistically significant difference(P >0.05),but both less than that in group B,with statistically significant difference(P 0.05),but both more than that in group B,with statistically significant difference(P 0.05).And the fusion rates of group A and C in each period were significantly higher than that of group B,with statistically significant difference(P 0.05),but both better than that of group B,with statistically significant difference (P <0.05).Conclusion BMP synthetic bone used in lumbar spondylolisthesis has the same clinical effect as autologous bone.But BMP synthetic bone has faster bone graft fusion rate than autologous bone.And it is beneficial to patients’recovery.
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<p><b>OBJECTIVE</b>To investigate the influence of parathyroid hormone and estrogen on alveolar bone metabolism of castrated female rats.</p><p><b>METHODS</b>Sixty-six female Wistar rats which were healthy and 4 months old were divided into two groups, with group SHAM (n = 18) and group ovariectomy (OVX) (n = 48). After 8 weeks of ovariectomy, the osteoporosis model was confirmed by examing 8 ovariectomized and sham-operated rats. The rest 10 rats in group SHAM were the control group (group A). The rest 40 rats in group OVX were divided into ovariectomized group (group B), ovariectomized and treated with estrogen (group C), ovariectomized and treated with parathyroid hormone (group D), ovariectomized and treated with estrogen and parathyroid hormone (group E) at random with 10 in each group. Group A and B injected physiological saline (1 mL x kg(-1)), group C injected estradiol benzoate (10 microg x kg(-1)), group D injected parathyroid hormone (20 microg x kg(-1)), group E injected parathyroid hormone (20 microg x kg(-1)) and estradiol benzoate (10 microg x kg(-1)). The intraperitoneal injection were maken every other day to rats in each group, which continued for 8 weeks. The bone mineral density (BMD), bone histomorphology and serum Ca, P, alkaline phosphatase (ALP) were measured after therapy.</p><p><b>RESULTS</b>After 8 weeks of ovariectomy, the lumbar BMD of ovariectomized rats were significantly declined compared with those of the sham-operated rats (P < 0.05). Eight weeks later after the drug use, the BMD, %Tb.Ar, Tb.Th, Tb.N in group C, D, E were slightly elevated compared to group B, especially the group E (P < 0.05). Serum calcium and phosphorus values did not change significantly (P > 0.05). ALP values in group B was significantly higher than that in group A (P < 0.05).</p><p><b>CONCLUSION</b>Intermittent application of parathyroid hormone in small doses can increase alveolar BMD of castration rats and improve their bone structure. And it can have synergy effects on the treatment of osteoporosis if it is used combining with estrogen.</p>
Subject(s)
Animals , Female , Rats , Alkaline Phosphatase , Bone Density , Estradiol , Estrogens , Osteoporosis , Ovariectomy , Parathyroid Hormone , Rats, Sprague-Dawley , Rats, WistarABSTRACT
<p><b>OBJECTIVE</b>To evaluate the accuracy and repeatability of alveolar bone height measurement in vitro by cone beam computed tomography (CBCT), and to provide theoretical application of CBCT in periodontal clinic.</p><p><b>METHODS</b>Eight dry mandibles with 236 selected markers were scanned by CBCT scanner, and the distance from alveolar ridge crest to cemento-enamel junction were measured on every marker by the images of CBCT. Meanwhile the distances on the dry mandibles were measured directly by vernier caliper. All the data were analyzed by SPSS 13.0 statistics software.</p><p><b>RESULTS</b>There was no significant difference between the two repeated measurements by the CBCT images (P >0.05), and no significant difference were found between the measurement by the CBCT images and by vernier caliperas well (P > 0.05).</p><p><b>CONCLUSION</b>The CBCT images could demonstrate the three-dimensional relationships between tooth and alveolar bone accurately. As far as the height of alveolar bone measurement was concerned, CBCT show good accuracy and repeatability in vitro.</p>
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Humans , Alveolar Process , Cone-Beam Computed Tomography , In Vitro Techniques , Mandible , Software , ToothABSTRACT
Through analyzing the employment situation of pharmaceutical engineering specialty,a variety of employment-oriented practice mode of combining learning with working has been explored,including internships,school-enterprise cooperation,personal contact przctice,combined with the dual selections fair,co-culture with other universities,and attending postgraduate exanl with a research proiect model.As a result,the implementation of these models led to improve students'professional operating skills and eventually encourage graduates to start a career smoothly
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Objective: To evaluate the effect of Twin-block function al appliance in the treatment of transmissible obstructive sleep apnea syndrome (O SAS). Methods: 7 cases of OSAS, aged 8.6～13.2 years, with sk e letal Angle II malocclusion were treated with Twin-block fuctional appliance fo r 13 months on an average. The position of the mandible, tongue, soft palate,hyo id bone and the radius vector of the upper airway was measured by lateral cepha lometric radiographs, the indexes of sleep condition, breath function and cardio vascular system were measured by polysomnography before and after treatment. Results: At the end of the treatment, the average increase in the radius of upper airway was 4.84 mm (P
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Objective:To evaluate the effect of passive smoking on the incidence of children's asthma in our country and abroad.Methods: Based on the 3 Chinese major science literature databases and MEDLINE database,8 articles were selected among all the articles of case control study during 1994 to 2003.The results of 8 Logistic regression on the cause of children's asthma were analyzed by General Variance Based method of meta analysis. Results: The pools regression coefficient b G was 1.101,OR was 3.007, ? 2 was 22.49 ( P