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dverse reactions of immunomodulatory therapy should not be ignored. In addition, attention should be paid to the cooperation of multi-disciplinary team, which can diagnose and treat rare cases earlier and more accurately.OBJECTIVE To measure the dimensional data of complete dentures and to design a novel tray for recording maxillomandibular relationship of edentulous patients. METHODS For the measurement, 100 pairs of complete dentures from the clinic were surveyed for the following parameters a1, the distance between the middle fossa of the upper left and right first molars; a2, the anterior-posterior distance between the middle fossa of the upper first molars and the incisal edge; a3, the width of the upper denture; a4, the anterior-posterior length of the upper denture; a51, the height from the mesio-lingual cusp of the right upper first molar to the saddle surface; a52, the height from the central fossa of the right lower first molar to the saddle surface; a6, the height from the notch of the upper lip frenulum to the upper central incisor edge; a7, the least thickness of the labial saddle base in the upper central incisor region. Based on the data, the trays with different sizes were designed and fabricated, and the key and adjusted till the proper vertical dimension, after that, the putty silicone rubber impression material was added around the screw posts to record the horizontal maxillomandibular relationship, finally, the anterior surface of the tray handle was used to record the midline of the face and lower edge of the upper lip at rest and with smile. 7,12Dimethylbenz[aanthracene] CONCLUSION The dimensional data offered reference for the analysis of restoration space in edentulous patients. The tray designed and fabricated in this study may serve as a new tool for recording the maxillomandibular relationship.OBJECTIVE To compare the changes of extracellular space (ECS) structure and local drug distribution in adult brain and aged brain at different drug delivery rates in minimally invasive treatment of encephalopathy by convection enhanced delivery (CED) via ECS pathway. METHODS Thirty-six SD male rats were divided into adult rats group (2-8 months, n=18) and aged rats group (18-24 months, n=18) according to the age of the month. According to the drug rates (0.1 μL/min, 0.2 μL/min, and 0.3 μL/min), they were randomly divided into 3 subgroups, 6 in each subgroup. Gadolinium-diethylene triamine pentaacetic acid (Gd-DTPA) with a concentration of 10 mmol/L were introduced into the caudate nucleus of each group of rats by stereotactic injection. Tracer-based magnetic resonance imaging (MRI) was used to dynamically monitor the diffusion and distribution images of the Gd-DTPA in the brain interstitial system (ISS). Using the self-developed MRI image measurement and analysis system software to process and analyze the obtvelopment of individualized clinical treatment plan for minimally invasive treatment of encephalopathy via ECS pathway.OBJECTIVE The incidence of colorectal stromal tumor is low among digestive tract tumors, therefore the literatures about clinicopathological features and prognosis of colorectal stromal tumor are few at home and abroad. In this study, we performed survival analyses for colorectal stromal tumor. The nomogram made by prognostic factors provided basis for evaluation of prognosis. METHODS The clinico-pathological and prognostic data of colorectal stromal tumor between January 1992 and December 2015 were collected from the surveillance, epidemiology, and end results (SEER) database. The survival analyses were made by SPSS 24.0 software. The nomogram and calibration curve were made by RMS package in R 3.5.2 software. RESULTS In the study, 546 patients with colorectal stromal tumor were included. The median age of onset was 64 years. The regional lymph node metastasis (LNM) rate was 9.4%. The multivariate Cox regression analyses of the 546 cases showed that the older age of onset (>64 years), single or divorce, colo of CSS and OS of the 546 cases were separately 0.71 (95%CI 0.66-0.75) and 0.73 (95%CI 0.70-0.77). The nomogram had more accuracy for predicting OS probability of colorectal stromal tumors. CONCLUSION The prognosis of colorectal stromal tumor was affected by multiple clinicopathological factors. The nomogram provided the basis for predicting the survival probability of patients with colorectal stromal tumor.OBJECTIVE Tissues loss due to periodontal disease is typically treated by a variety of regenerative treatment modalities, including bone grafts, guided tissue regeneration (GTR) and growth factors, to reform the supporting tissues of teeth. Concentrated growth factors (CGF) are produced by centrifuging blood samples at alternating and controlled speeds using a special centrifuge. The purpose of this study was to evaluate whether GTR could improve the effect of CGF combined with bone graft in the treatment of classII furcations of mandibular molars. METHODS In the present study, thirty-five classII furcation involvements were included and randomly divided into two groups. The experimental group (n=17) accepted GTR combined with CGF and bone graft therapy, and the controlled group (n=18) accepted CGF combined with bone graft therapy. The clinical examinations and cone beam computed tomography (CBCT) were performed at baseline and 1 year post-surgery. Comparisons of clinical and CBCT data before and after operatmbined with bone graft in the treatment of classII furcation involvements of mandibular molars.OBJECTIVE To evaluate the gingival thickness and gingival biotype of gingival recession teeth of Chinese population. METHODS A total of 112 non-molar teeth with gingival recession in 34 patients were included. Direct measurement, cone-beam computerized tomography (CBCT) measurement and periodontal probe method were used to evaluate gingival thickness and biotype. Gingival thickness was measured at 2 mm apical to the gingival margin. Direct measurement was performed with a caliper of 0.01 mm resolution and anesthesia needles attached to silicone disk stops. Gingival biotype was assessed by sulcus probing, if the periodontal probe was visible through the gingival tissue, the gingival biotype was thin; If not visible, the gingival biotype was thick. The differences of gingival thickness among different gingival biotype, tooth site and gingival recession type were analyzed respectively. Besides, the results of CBCT measurement was analyzed compared with the direct measurement. RESULTS The average gingival thickness of non-molar recession teeth was (1.