Chi Yang

Shanghai Jiao Tong University, Shanghai, Shanghai Shi, China

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Publications (140)163.31 Total impact

  • Yiwen Wang · Lingzhi Li · Minjie Chen · Chi Yang
    British Journal of Oral and Maxillofacial Surgery 08/2015; DOI:10.1016/j.bjoms.2015.07.014 · 1.13 Impact Factor
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    ABSTRACT: To describe a new glenoid fossa bone graft technique, and to evaluate its effect on the stability of stock fossa prosthesis implantation in total alloplastic joint replacement surgery. Eight patients who underwent total joint replacement surgery with a Biomet stock prosthesis (Biomet, Warsaw, IN, USA) from November 2013 to April 2014 were included in this study. ProPlan CMF 1.4 software (Materialise NV, Leuven, Belgium) was used to choose the prosthesis size and place it in the right position. The depth of the fossa was measured, and the osteotomy line was designed to cut the bone which overlapped the fossa prosthesis. A bone graft, taken from the bottom of the articular eminence or the condylar neck, was used to fill in the fossa and make a flat plane in combination with the residual eminence for the positioning of the fossa prosthesis. The stability of the fossa prosthesis was evaluated both intra-operatively and postoperatively with computed tomography (CT) scanning after at least 6 months of follow-up. The bone contact area of the fossa prosthesis and the volume of the grafted bone were measured. Fossa prostheses were intra-operatively stable after bone grafting. All patients had stable occlusion after surgery and at follow-up. Postoperative measurement showed that the bone contact area with the fossa prosthesis increased from 52.8% to 88.5% after bone grafting. Postoperative CT measurements (at an average of 9 months after surgery) showed that the bone graft volume decreased by 11.1%. Bone grafts in the glenoid fossa help to improve the stability of Biomet stock fossa prosthesis implantation. Copyright © 2015 European Association for Cranio-Maxillo-Facial Surgery. Published by Elsevier Ltd. All rights reserved.
    Journal of cranio-maxillo-facial surgery: official publication of the European Association for Cranio-Maxillo-Facial Surgery 07/2015; DOI:10.1016/j.jcms.2015.06.048 · 2.60 Impact Factor
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    ABSTRACT: To introduce grafting fixed with the periosteum (dumpling technique) as an alternative surgical technique for augmented corticotomy-assisted orthodontics in the lower anterior region and evaluate the preliminary outcomes. Eleven patients (9 women, 2 men; mean age, 21.4 yr) with a thin alveolus or alveolar defect in the lower anterior region by clinical and radiographic examination underwent an augmented corticotomy using the new dumpling technique. Cone-beam computerized tomography was used to evaluate morphologic changes of the lower anterior ridge before treatment (T0) and 1 week (T1) and 6 months (T2) after the bone-augmentation procedure. Repeated-measures analysis of variance with Bonferroni multiple-comparison test was used to compare variables at each time point. No severe postsurgical complications occurred in any patient. The mean alveolar bone thickness of the labial plate increased from T0 to T1 (P < .001) and decreased from T1 to T2 (P < .001). However, compared with T0, there was still a significant increase in horizontal bone thickness at T2 (P < .05). The vertical alveolar bone level increased from T0 to T1 (P < .001) and was maintained from T1 to T2 (P > .05). No significant differences were found in root length of the lower anterior teeth at these 3 time points (P > .05). In this preliminary study, the dumpling technique for augmented corticotomy-assisted surgical orthodontics showed alveolar bone augmentation by increasing the vertical alveolar height and the horizontal bone thickness in the labial aspect of the anterior mandibular area. However, long-term follow-up is necessary. Copyright © 2015 American Association of Oral and Maxillofacial Surgeons. Published by Elsevier Inc. All rights reserved.
    Journal of oral and maxillofacial surgery: official journal of the American Association of Oral and Maxillofacial Surgeons 06/2015; DOI:10.1016/j.joms.2015.06.147 · 1.28 Impact Factor
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    ABSTRACT: The soft tissue healing patterns of mandibular intracapsular condylar fracture (ICF) after closed treatment have not been well characterized. The purpose of the present study was to classify the injury and healing patterns in adult patients using magnetic resonance imaging (MRI) evaluation. The present study represents a retrospective review of MRI examinations performed on patients treated with closed reduction of an ICF from 2010 to 2013. The MRI scans used for comparison were taken at 1 week and at least 3 months after the injury. These studies were used to identify the common patterns of hard and soft tissue derangements. The predictor variable was the type of soft tissue injuries, categorized as anteromedial displacement of both the disc and the fractured bony fragment, anteromedial displacement of the bony fragment with the disc remaining over the residual ramus, tear of the retrodiscal tissue or capsule, and joint effusion. The outcome variables were the MRI comparisons of the disc position, healing status of the retrodiscal tissue and capsule, and resolution of joint effusions. Twelve patients, all with ICFs, were included in the present study. Immediately after injury, all 17 fractures (100%) showed anteromedial displacement of both the disc and the fractured condylar fragment, and 10 fractures (58.8%) showed anteromedial displacement of the condylar fragment with the disc remaining over the residual condyle. Also, 11 (64.7%) showed evidence of perforation of the retrodiscal tissue, and 7 (41.2%) showed tears in the capsule. Finally, all 17 (100%) exhibited joint effusions. At 3 months after injury, all 17 fractures (100%) continued to exhibit displacement of both the disc and the condylar segments. Also, 15 fractures (88.2%) showed elongation of the disc and thickening of the retrodiscal tissue, 2 fractures (11.8%) had developed osteoid hyperplasia and meniscal perforation, and 6 fractures (35.3%) showed resolution of previous joint effusions. Finally, 17 fractures (100%) showed reactive bone formation at the condylar head. ICFs treated with closed reduction consistently result in a specific pattern of temporomandibular joint pathologic features. These pathologic features are characterized by anteromedial displacement of the articular disc, elongation and thickening of the retrodiscal tissue, and reactive bone formation at the condylar head. The presence of a portion of the disc between the residual condyle and the fossa prevented the development of osteoarthritis and ankylosis. Perforation of the bilaminar tissue and contact between the residual condyle and the fossa promoted osteoarthritic changes and ankylosis. Copyright © 2015 American Association of Oral and Maxillofacial Surgeons. Published by Elsevier Inc. All rights reserved.
    Journal of Oral and Maxillofacial Surgery 05/2015; DOI:10.1016/j.joms.2015.05.030 · 1.28 Impact Factor
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    ABSTRACT: Our aim was to evaluate the effect of a digital template in the preservation of the inferior alveolar neurovascular bundle during osteotomy for benign lesions of the mandible in 6 patients who were treated with mandibular osteotomies during 2013. Computed tomographic (CT) data were imported into ProPlan CMF 1.4 software. The borders of the lesion and the inferior alveolar canal were marked, and a digital template designed to mark the borders, outline the canal, and guide the osteotomy. A mirror image of the unaffected mandible was used to make a stereolithographic model by a rapid prototyping technique to prefabricate the reconstruction plate for the bone graft. The accuracy of the designs and the templates was evaluated during operation and postoperatively by CT. The sensation of the skin was tested using a Neurometer® CPT (current perception threshold) sensory detector (Neurotron Inc, Baltimore USA) to evaluate the function of the preserved inferior alveolar neurovascular bundle during follow up. With the digital template it was possible to guide removal of the bony lesion while accurately protecting the neurovascular bundle. Follow up for a mean of 8 months (range 5 -12) showed good facial symmetry, a stable occlusion, and recovery of sensation in the lower lip on the affected side. We conclude that a digital template can successfully help the resection of benign lesions of the mandible while preserving the function of the inferior alveolar neurovascular bundle. Copyright © 2015 The British Association of Oral and Maxillofacial Surgeons. Published by Elsevier Ltd. All rights reserved.
    British Journal of Oral and Maxillofacial Surgery 05/2015; DOI:10.1016/j.bjoms.2015.04.013 · 1.13 Impact Factor
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    ABSTRACT: This study aimed to evaluate the changes of temporomandibularjoint (TMJ) space in the treatment of disk displacement with reduction (DDWR) for class II cases. Forty-two adolescent patients with unilateral DDWR, who were successfully treated by functional appliance, were selected in this study. Magnetic resonance imaging scans were used before treatment (T1), at the start of treatment (T2), and after functional treatment (T3). Compared with the normal joint, the change of joint space index was calculated. The anterior, posterior, and superior joint spaces were analyzed on the largest sagittal plane among T1, T2, and T3. Student's t-test was used for statistical analysis. The mean treatment period was 10 months (6-16 mo). Functional appliance was effective in eliminating pain and clicking. During the phase of T1, the value of the joint space index of DDWR was significantly higher than that of the control (P < 0.05). There was a significant decrease in the anterior space and an increase in the postsuperior space at T2 (P < 0.01), and then the contrary changes occurred at T3. However, there was a significant increase in the postsuperior space and no significant decrease in the anterior space when T1 and T3 were compared. This study indicates that the TMJ space is well distributed after disk repositioning with functional treatment of DDWR. It is also suggested that the adaptive remodeling in TMJ occurs via functional treatment.
    Journal of Craniofacial Surgery 03/2015; 26(2):e78-81. DOI:10.1097/SCS.0000000000001392 · 0.68 Impact Factor
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    ABSTRACT: The objective of this study was to present a functional surgery for retrieval of displaced root fragments from the maxillary sinus while preserving the alveolar bone. Twenty-one patients with associated root fragments displaced into the maxillary sinus after tooth extraction were collected and reviewed retrospectively. All patients included in the study were subjected to surgical removal of the displaced root by the use of piezosurgery. In case the root fragment was barely detectable, endoscopy would be helpful. Eleven roots were removed via small windows and 10 roots via large windows. Endoscopy was used in 2 patients. Granulomatous tissues were found around 6 root fragments, and cyst formation was found in 1 patient. Only 1 patient had sinusitis temporarily. No patients developed complications such as facial paresthesia, facial asymmetry, or infection. The functional surgery for the retrieval of a displaced root from the maxillary sinus is recommended owing to quick recovery, preservation of alveolar bone, and minimal complications.
    Journal of Craniofacial Surgery 02/2015; 26(2). DOI:10.1097/SCS.0000000000001286 · 0.68 Impact Factor
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    ABSTRACT: Dentigerous cyst (DC) in the maxillary sinus is rarely seen. Several complications are observed after the Caldwell-Luc operation, which is combined with endoscopy. Still, a more perfect treatment method is yet to be discovered. The purpose of this study was to explore and assess a new functional surgical treatment with fewer complications, which not only insured normal maxillary sinus cilia restoration and bony integrity but also did little damage to maxillary sinus natural ostium. Dentigerous cyst in the maxillary sinuses of 20 patients had conditions diagnosed through radiographic imaging and the locating of bone windows' positions according to preoperative 3-dimensional computed tomography (CT) (3D CT). All the patients underwent a functional surgery in which a bony lid was created anteriolaterally of maxillary sinus with piezosurgery and reimplanted by titanium plates after enucleating the cyst, leaving the maxillary sinus mucosa in place with or without endoscope's assistance. Therapeutic efficacy was evaluated by clinical examination and radiographic imaging at regular intervals; the longest follow-up was 24 months. All the patients recovered except for one, who underwent plate removal and radical maxillary sinusotomy owing to infection. Patients were asymptomatic, and CT images showed integrated maxillary bone. Extrusion deformation of the sinus was improved to different extents after 6 to 24 months of follow-up. Functional surgery for the treatment of DC in the maxillary sinus is a new approach and has the advantages of less surgical trauma, restoration of mucosa and bony wall, and more satisfactory results.
    Journal of Craniofacial Surgery 02/2015; 26(2). DOI:10.1097/SCS.0000000000001287 · 0.68 Impact Factor
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    ABSTRACT: Pigmented villonodular synovitis is an uncommon benign tumor-like proliferative lesion with an undetermined origin. Involvement of the temporomandibular joint is uncommon. Although pigmented villonodular synovitis is a benign lesion, it can grow with an aggressive pattern, and it extends extra-articularly in most of the reported cases, about one-third of them exhibiting intracranial involvement. The authors reported an additional case of a 47-year-old woman with intracranial extension, who had a history of joint pain and trismus. The preoperative diagnosis was made with arthroscopy. The lesion was completely excised via preauricular approach and condylotomy. The bone defect was covered by the pedicled temporalis myofascial fat flap. The patient has been symptom-free for 40 months postoperatively.
    Journal of Craniofacial Surgery 02/2015; 26(2). DOI:10.1097/SCS.0000000000001341 · 0.68 Impact Factor
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    ABSTRACT: This study aims to identify significant predictors of 3 outcomes in the aged patients and non-elderly with multi-space infections of the head and neck: the number of incisions, the length of hospital stay, and complications. A retrospective study was conducted on 242 patients receiving treatment for severe multi-space infections of the head and neck region. Study variables were categorized as demographics, clinical parameters, and laboratory values. The outcome variables were the number of incisions, length of hospital stay, and complications. Multivariate linear and logistic regression techniques were used to measure associations between study variables and the outcome variables. Statistical analyses of the results between groups were performed using the Student t test and χ. Multivariate analyses, controlling for confounding variables, indicated that the number of spaces affected was a predictor of the number of incisions and complications in the elderly group. In the non-elderly group, the number of spaces affected was a predictor of the number of incisions and length of hospital stay. Admission blood glucose level and admission white blood cell count were the predictors of complications in the non-elderly. This study identifies different study variables as predictors of outcomes in treating multi-space infections of the head and neck in the elderly and non-elderly group. The number of spaces affected is the most important predictor.
    Journal of Craniofacial Surgery 02/2015; 26(2). DOI:10.1097/SCS.0000000000001465 · 0.68 Impact Factor
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    ABSTRACT: Myositis ossificans (MO) is a disease where heterotropic bone forms within a muscle or other type of soft tissue. MO is classified into two groups, MO progressiva and post-traumatic MO. It rarely occurs in the masticatory muscles and thus, only 20 cases involving the masticatory muscles have been reported since 2001. The majority of the reported cases occurred due to trauma, repeated injury or surgical manipulation. However, in a small number of cases, no specific traumatic event was identified as the cause of MO. To the best of our knowledge, this is the first case of post-infectious MO to be reported in the medial and lateral pterygoid muscles.
    Oncology letters 02/2015; 9(2):920-926. DOI:10.3892/ol.2014.2710 · 0.99 Impact Factor
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    ABSTRACT: Our aim was to assess the efficacy of piezoelectric corticotomy for orthodontic traction of mandibular third molars close to the inferior alveolar nerve. Thirty patients with impacted third molars close to the nerve were included in the study, 15 of whom were treated with conventional orthodontic traction and 15 with piezoelectric corticotomy. We recorded duration of treatment including exposure and orthodontic traction, and time to the final extraction. Postoperative complications including trismus, swelling, and pain were also noted. Alveolar bone levels mesial and distal to the second molars were evaluated on cone-beam computed tomographic (CT) images. Student's t test was used to assess the significance of differences between the groups. After orthodontic treatments all impacted third molars were successfully removed from the inferior alveolar nerve without neurological damage. The mean (SD) duration of surgical exposure in the piezoelectric corticotomy group was significantly longer than that in the conventional group (p = 0.01). The mean (SD) duration of traction was 4 (2.3) months after piezoelectric corticotomy, much shorter than the 7.5 (1.3) months in the conventional group (p = 0.03). There were no significant differences in postoperative complications between the groups. There was a significant increase in the distal alveolar height of second molars after treatment in both groups (p < 0.01). We conclude that the use of piezoelectric corticotomy allows more efficient and faster traction of third molars with a close relation between the root and the inferior alveolar nerve, although it took longer than the traditional technique.
    British Journal of Oral and Maxillofacial Surgery 01/2015; 53(4). DOI:10.1016/j.bjoms.2015.01.002 · 1.13 Impact Factor
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    ABSTRACT: To evaluate the types of synovial condromatosis (SC) of tempromandibular joint (TMJ) on MRI and their potential aggressive behavior. 144 patients with pure SC of TMJ were included in. On MRI, 3 types of the lesion included loose body, homogeneous mass, and mixture of both loose body and homogeneous mass. Bony evaluations included 4 stages of erosion: without erosion, chondral breakdown, bony absorption and bony perforation. 47 (32.6%) cases were categorized in the type of loose body, 71 (49.3%) cases in the type of homogeneous mass, and 26 (18.1%) cases in the type of mixture. 80% of bony perforation belonged to the type of homogeneous mass and 20% belonged to the type of mixture. 2 patients were found recurrence. The types of homogeneous mass and mixture of both on MRI were more aggressive. Homogeneous mass with bony erosion on MRI had potential recurrence. Copyright © 2015 European Association for Cranio-Maxillo-Facial Surgery. Published by Elsevier Ltd. All rights reserved.
    Journal of Cranio-Maxillofacial Surgery 01/2015; 43(3). DOI:10.1016/j.jcms.2015.01.011 · 2.60 Impact Factor
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    ABSTRACT: The goal of the study was to investigate the production of COL2A1, SOX9, ALP, Runx2, Ihh and PTHrP in mandibular condylar chondrocytes under static pressure stimuli
    Archives of Oral Biology 01/2015; 60(4). DOI:10.1016/j.archoralbio.2015.01.003 · 1.88 Impact Factor
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    ABSTRACT: Objective: We aimed to investigate the correlation between the disc status in MRI and different types of traumatic temporomandibular joint (TMJ) ankylosis. Methods: 51 consecutive patients (69 joints), diagnosed as traumatic TMJ ankylosis with a residual condyle (types A2 and A3), were included in this study. All patients had a preoperative MRI, which was reviewed to determine the disc shape, length, and position. The results were compared using the Mann-Whitney test. Results: There were 37 joints of type A2 ankylosis and 32 joints of type A3. All joints of type A2 and 27 joints of type A3 (84.4%) definitely had a discernible disc, while 5 joints of type A3 had no discernible discs. Among the discernible discs, the lateral disc of type A2 and the whole disc of type A3 had severe deformity, while the medial disc of type A2 had mild deformity. The mean (SD) disc length in type A2 was 10.88 (1.19) mm, while in type A3 it was 7.50 (0.82) mm. There was a significant difference between types A2 and A3 (P<0.05). As for the disc position, the intermediate position was found in all joints. Conclusions: There is a correlation between the disc status and different types of traumatic TMJ ankylosis. Therefore, we need to have an MRI examination to help treatment planning and predict the postoperative TMJ functions.
    Dento-maxillo-facial radiology. Supplement 01/2015; 44(4):20140201. DOI:10.1259/dmfr.20140201
  • Qin Zhou · Chi Yang · Min-Jie Chen
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    ABSTRACT: Osteochondroma represents the largest group of benign tumors of bone, which usually develops in long bones and relatively uncommon in the craniofacial region. The condyle and coronoid tip are the most common sites of occurrence in the mandible, but both sides of condyle involved has never been reported. Here, we describe a case of osteochondroma arising from the bilateral mandibular condyle.
    International Journal of Clinical and Experimental Medicine 01/2015; 8(2):2989-92. · 1.42 Impact Factor
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    ABSTRACT: To analyze primary intra- and juxta-articular vascular malformations of the temporomandibular joint. This study retrospectively reviewed eight patients (seven venous malformations and one lymphatico-venous malformation) who were treated for intra- or juxta-articular vascular malformations of the temporomandibular joint from November 2005 to January 2011. All patients underwent magnetic resonance imaging (MRI) preoperatively. According to MRI findings, vascular malformations involving TMJ could be divided into 3 types; homogenous, lacunar and mixed types. All patients underwent surgical resection, and the final clinical diagnoses were confirmed by postoperative histopathology and immunohistochemical examinations. All treated patients had no clinical or radiographic signs of recurrence. Owing to the lower incidence and nonspecific clinical presentations, preoperative diagnosis of vascular malformations involving the TMJ region is very difficult. The classification based on MRI manifestations is proposed first, then it may greatly help in the initial diagnosis. Surgical resection is considered the first option for these TMJ lesions with excellent results.
    International Journal of Clinical and Experimental Medicine 01/2015; 8(2):2247-53. · 1.42 Impact Factor
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    ABSTRACT: The objective of this study was to radiographically quantify bone height and bone density in patients with periodontitis after fixed orthodontic treatment using cone beam computed tomography (CBCT). A total of 81 patients including 40 patients with chronic periodontitis (group 1) and 41 patients with normal periodontal tissues (group 2) were selected. CBCT scanning for anterior teeth were taken before and after orthodontic treatment. Measurements of bone height and bone density were performed using CBCT software. The group 1 presented a statistically lesser bone density and bone height when compared to group 2 before treatment. There was a significant loss of bone density for both groups after orthodontic treatment, but bone density loss was significantly greater in the group 1. There was no statistically significant bone height change in two groups after treatment. This study demonstrated that orthodontic treatment can preserve bone height but not capable of maintaining bone density, especially for patients with periodontitis. It is indicated that the change of bone density may be more susceptible than that of bone height when radiographically evaluating bone status under this combined periodontal and orthodontic therapy.
    International Journal of Clinical and Experimental Medicine 01/2015; 8(2):2385-91. · 1.42 Impact Factor
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    ABSTRACT: The study was aimed to determine and optimize the parameters for the MR fast imaging employing steady-state acquisition (FIESTA) sequence, which was to obtain an acceptable image to evaluate the value of the movement of the temporomandibular joint (TMJ). In this investigation, 20 volunteers were examined to determine and optimize the parameters of the FIESTA sequence. Then, 160 TMJs from 80 patients with temporomandibular joint disorders (TMD) of clinical suspicion were consecutively performed by both static MRI and dynamic FIESTA MRI on the oblique sagittal position. The FIESTA MR images of TMJs were obtained from a slow, consecutive, free and open-closed movement. Based on the cycles of TMJ movements during the process of FIESTA MRI (90seconds), we classified all TMJs into 2 groups: cycles of open-closed mouths less than or equal to 3 (group 1) and more than 3 (group 2). Each image was marked level 1-3 by its quality. Meanwhile, the location of articular disc, mandibular condyle, motive artifact, "jumping sign" and the joint effusion in each TMJ were assessed respectively. By dynamic FIESTA MRI among 160 TMJs, 92 TMJs (57.50%) were in group 1 and 68 TMJs were (42.50%) in group 2. There were statistically significant differences between group 1 and group 2(p<0.05). It was shown that the number of "level 3" in group 1 was greater than group 2, and the number of "level 1" in group 1 was less than group 2. The phenomenon of motion artifact and "jumping sign" were much significantly higher in group 2 than those in group 1 (p<0.01). Furthermore, in all of the "jumping sign" cases, the phenomenon of "jumping sign" was significantly higher in group ADDwR than in group ADDw/oR (p<0.01). There was a statistically significant correlation between disc-condyle complex in "jumping sign" phenomenon and group ADDwR (r=0.621, p<0.05). The data with the false matching rate of 31.52% showed that the maximum motion range on the dynamic imaging was greater than the static imaging. Among 160 TMJs, joint effusions of 37 TMJs (23.13%) were identified by dynamic FIESTA-MRI. Among 79 TMJs with ADDw/oR(anterior disc displacement without reduction),42 sides were operated with Maxillofacial arthroscopy surgery. The surgical result was in agreement with the MR result. Most TMJs images with a slow free open-close movement (cycles≦3) could be successfully obtained by the dynamic FIESTA MRI. The FIESTA MRI might be considered as an additional method to evaluate the movement of the articular disk and the mandibular condyle. Copyright © 2014. Published by Elsevier Inc.
    Magnetic Resonance Imaging 11/2014; 33(3). DOI:10.1016/j.mri.2014.10.013 · 2.02 Impact Factor
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    ABSTRACT: To investigate the prevalence of mandibular asymmetry (MA) within the symptomatic unilateral anterior disc displacement (ADD) patients, and analyze the influence TMJ factors of the MA severity.Methods Patients aged under 20 years old with symptomatic unilateral ADD and asymptomatic volunteers with normal disc-condyle relationship diagnosed by magnetic resonance imaging (MRI) were included in this study. Posteroanterior cephalometric radiographs were taken to measure MA. Condylar height, disc length and disc displacement were measured by MRI. The prevalence and severity of MA were compared between the ADD and the control groups. The correlation between the severity of MA with the amount of condylar height shortage, disc deformity and distance of disc displacement were also evaluated within the ADD group.ResultsThere were 165 cases in the unilateral ADD group, and 156 cases in the control group. One hundred and nineteen cases had MA which accounted 72.12% (119/165) in the ADD group; while in the control group, only 25.64% (40/156) exhibited MA. The mean horizontal menton deviation and condylar height shortage in the unilateral ADD group were significantly larger than that in the control group (5.62mm vs. 4.19mm; 3.14mm vs. 1.32mm, p<0.01). The severity of MA was significantly correlated with the amount of disc displacement, disc deformity and condylar height shortage (correlation coefficient: 0.80, 0.70, and 0.82).ConclusionMA is much more common and severe in young unilateral ADD patients. The severity of MA is correlated with the height of condyle and the status of the disc.
    Journal of Cranio-Maxillofacial Surgery 10/2014; 43(1). DOI:10.1016/j.jcms.2014.10.013 · 2.60 Impact Factor

Publication Stats

435 Citations
163.31 Total Impact Points

Institutions

  • 2009–2015
    • Shanghai Jiao Tong University
      • • Department of Oral and Maxillofacial Surgery
      • • School of Medicine
      Shanghai, Shanghai Shi, China
    • Binzhou Medical University
      Pei-chen, Shandong Sheng, China
  • 2010–2014
    • Xin Hua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine
      Shanghai, Shanghai Shi, China
  • 2012–2013
    • Renji Hospital
      Shanghai, Shanghai Shi, China
    • Shanghai Putuo District People's Hospital
      Shanghai, Shanghai Shi, China
  • 2008–2013
    • Center For Oral & Maxillofacial Surgery
      Georgia, United States
  • 2002–2007
    • Second Military Medical University, Shanghai
      Shanghai, Shanghai Shi, China