The Experts below are selected from a list of 147 Experts worldwide ranked by ideXlab platform
Youngkyun Kim - One of the best experts on this subject based on the ideXlab platform.
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clinical evaluation of sinus bone graft in patients with Mucous Retention Cyst
Maxillofacial plastic and reconstructive surgery, 2016Co-Authors: Seongbeom Kim, Pilyoung Yun, Youngkyun KimAbstract:Mucous Retention Cyst refers to a Cyst made by expansion due to the blockage of the salivary gland near the maxillary sinus, and it is surrounded by epithelial cells. Most of them are small; therefore, they cannot be found well and are frequently with antral polyp. The aim of this study was to evaluate the clinical prognosis of sinus bone graft in patients with Mucous Retention Cyst. This study was performed retrospectively on 23 patients who had sinus bone graft. Group 1 was 8 patients (10 sinuses) who had a Mucous Retention Cyst, and group 2 was 15 patients (17 sinuses) who had no pathologic history about the maxillary sinus. For these patients, sinus bone graft was performed using the lateral approach technique. The total 51 implants were placed 6.22 weeks on the average after sinus bone graft. Sinus membrane perforation during operation, postoperative complications, marginal bone loss after restorative function, implant success rate, and survival rate were analyzed. There was no complication in group 1, and there were three complications in group 2. In group 2, two cases of implants failed. The types of postoperative complications consisted of two minor infections and one wound dehiscence. Two implants of total 51 implants were removed, and the survival rate of implants was 96.08 % (group 1 100 %, group 2 93.5 %). The total success rate of implants was 92.2 % (group 1 95 %, group 2 90.3 %). The clinical prognosis was not affected by the presence of Mucous Retention Cyst.
Seongbeom Kim - One of the best experts on this subject based on the ideXlab platform.
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clinical evaluation of sinus bone graft in patients with Mucous Retention Cyst
Maxillofacial plastic and reconstructive surgery, 2016Co-Authors: Seongbeom Kim, Pilyoung Yun, Youngkyun KimAbstract:Mucous Retention Cyst refers to a Cyst made by expansion due to the blockage of the salivary gland near the maxillary sinus, and it is surrounded by epithelial cells. Most of them are small; therefore, they cannot be found well and are frequently with antral polyp. The aim of this study was to evaluate the clinical prognosis of sinus bone graft in patients with Mucous Retention Cyst. This study was performed retrospectively on 23 patients who had sinus bone graft. Group 1 was 8 patients (10 sinuses) who had a Mucous Retention Cyst, and group 2 was 15 patients (17 sinuses) who had no pathologic history about the maxillary sinus. For these patients, sinus bone graft was performed using the lateral approach technique. The total 51 implants were placed 6.22 weeks on the average after sinus bone graft. Sinus membrane perforation during operation, postoperative complications, marginal bone loss after restorative function, implant success rate, and survival rate were analyzed. There was no complication in group 1, and there were three complications in group 2. In group 2, two cases of implants failed. The types of postoperative complications consisted of two minor infections and one wound dehiscence. Two implants of total 51 implants were removed, and the survival rate of implants was 96.08 % (group 1 100 %, group 2 93.5 %). The total success rate of implants was 92.2 % (group 1 95 %, group 2 90.3 %). The clinical prognosis was not affected by the presence of Mucous Retention Cyst.
Anthony R. Mundy - One of the best experts on this subject based on the ideXlab platform.
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the morbidity of buccal mucosal graft harvest for urethroplasty and the effect of nonclosure of the graft harvest site on postoperative pain
The Journal of Urology, 2004Co-Authors: Dan Wood, S. E. Allen, Tamsin Greenwell, Daniela E Andrich, Anthony R. MundyAbstract:ABSTRACT Purpose: We assess the medium and long-term morbidity of buccal mucosal graft (BMG) harvest for urethroplasty, and evaluate the effect of nonclosure of the graft harvest site on postoperative pain. Materials and Methods: A questionnaire was mailed to 110 men who underwent BMG urethroplasty between January 1, 1997 and August 31, 2002. Demographic data and side effects of BMG harvest, including oral pain, sensation and intake, were assessed postoperatively. A prospective study was then performed to compare 20 unselected men whose BMG donor site was closed with a group of 20 men in whom it was left open using a 5-point analog pain score that was completed twice daily for the first 5 postoperative days. Results: A total of 49 men with a median age of 49 years (range 23 to 73) returned questionnaires relating to 57 BMG harvests. Of the graft harvests 47 (83%) were associated with postoperative pain, which was worse than expected in 24 (51%). Of the 57 patients 51 (90%) resumed oral liquid intake within 24 hours and 44 (77%) resumed normal diet within 1 week. Postoperative side effects included perioral numbness in 39 (68%) patients with 15 (26%) having residual numbness after 6 months, initial difficulty with mouth opening in 38 (67%) with 5 (9%) having persistent problems, changes in salivation in 6 (11%) and Mucous Retention Cyst that required excision in 1 (2%). The men in the prospective donor site study had a median age of 51 years (range 24 to 70). Mean pain score for patients with donor site closure was 3.68 and was significantly higher than that for patients without donor site closure (2.26, p Conclusions: Buccal mucosal graft harvest is not a pain-free procedure. Closure of the harvest donor site appears to worsen this pain and it may be best to leave harvest sites open. The main long-term complications are perioral numbness, persistent difficulty with mouth opening and change in salivary function.
Carlos Estrela - One of the best experts on this subject based on the ideXlab platform.
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Med Oral Patol Oral Cir Bucal. 2013 Jan 1;18 (1):e151-7. 3-D sinus Cyst detection e151 Journal section: Clinical and Experimental dentistry Publication Types: Researc
2015Co-Authors: Cleomar Donizeth-rodrigues, Marcia Fonsecada Silveira, Anahelena Goncalvesde Alencar, Alves Garcia-santos-silva, Elismauro Francisco-de-mendonça, Carlos EstrelaAbstract:Three-dimensional images contribute to the diagnosis of Mucous Retention Cyst in maxillary sinu
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three dimensional images contribute to the diagnosis of Mucous Retention Cyst in maxillary sinus
Medicina Oral Patologia Oral Y Cirugia Bucal, 2013Co-Authors: Cleomar Donizethrodrigues, Marcia Fonsecada Silveira, Anahelena Goncalvesde Alencar, Mariaalves Garciasantossilva, Elismauro Franciscodemendonca, Carlos EstrelaAbstract:Objective: To evaluate the detection of Mucous Retention Cyst of maxillary sinus (MRCMS) using panoramic radiography and cone beam computed tomography (CBCT). Study Design: A digital database with 6,000 panoramic radiographs was reviewed for MRCMS. Suggestive images of MRCMS were detected on 185 radiographs, and patients were located and invited to return for followup. Thirty patients returned, and control panoramic radiographs were obtained 6 to 46 months after the initial radiograph. When MRCMS was found on control radiographs, CBCT scans were obtained. Cysts were measured and compared on radiographs and scans. The Wilcoxon, Spearman and Kolmorogov-Smirnov tests were used for statistical analysis. The level of significance was set at 5%. Results: There were statistically significant differences between the two methods (p<0.05): 23 MRCMS detected on panoramic radiographs were confirmed by CBCT, but 5 MRCMS detected on CBCT images had not been iden tified by panoramic radiography. Eight MRCMS detected on control radiographs were not confirmed by CBCT. MRCMS size differences from initial to control panoramic radiographs and CBCT scans were not statistically significant (p= 0.617 and p= 0.626). The correlation between time and MRCMS size differences was not signifi cant (r = -0.16, p = 0.381). Conclusion: CBCT scanning detect MRCMS more accurately than panoramic radiography.
Takashi Saku - One of the best experts on this subject based on the ideXlab platform.
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lymphatic involvement in the histopathogenesis of Mucous Retention Cyst
Pathology Research and Practice, 2007Co-Authors: Sukalyan Kundu, Jun Cheng, Satoshi Maruyama, Makoto Suzuki, Hiroyuki Kawashima, Takashi SakuAbstract:Mucous Retention Cyst results from extravasation of saliva. Our intent was to study the role of lymphatics in its pathogenesis. Twenty-three surgical specimens of Mucous Retention Cyst of the lip were examined for involvement of lymphatic vessels by a comparative immunohistochemical demonstration of lymphatic and blood vascular endothelial cells, as well as lymphatic and salivary contents. Mucous Retention Cysts were histopathologically classified into three stages: early, intermediate, and advanced. In the early stage, there was diffuse extravasation of Mucous material in the interstitium of the lamina propria or the submucosal layer of the oral mucosa. In the intermediate stage, lymphatics, which were clearly revealed and immunohistochemically distinguished from blood vessels by monoclonal antibody D2-40, were dilated and finally ruptured, leaving fragments of lymphatic walls in the periphery of Mucous pools. In the advanced stage, thick Cyst walls of granulation tissue were formed around Mucous Retention. Lymphatics were no longer involved in the granulation tissue wall, which was actively driven by blood vessel formation. The results suggest that the lymphatic rupture seems to contribute to the enlargement in the pathogenesis of Mucous Retention Cyst.
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angiogenesis in Mucous Retention Cyst a human in vivo like model of endothelial cell differentiation in Mucous substrate
Journal of Oral Pathology & Medicine, 2005Co-Authors: Wael Swelam, Hiroko Idayonemochi, Takashi SakuAbstract:Division of Oral Pathology, Department of Tissue Regeneration and Reconstruction, Niigata University Graduate School ofMedical and Dental Sciences, Niigata, JapanBACKGROUND: Mucous Retention Cysts contain a mu-cous pool in the lumina, in which pure angiogenic pro-cesses are occasionally observed. By using this uniquehuman material, our aim was to understand the in vivoangiogenic process.METHODS: Fifteen surgical tissue samples of MucousRetention Cysts of the lip were examined for expression ofvascular endothelial markers and extracellular matrixmolecules by immunohistochemistry and in situ hybrid-ization (ISH).RESULTS: Endothelial cells forming new vascular chan-nels showed immunopositivities for CD31, CD34, vascu-lar endothelial growth factor (VEGF), and vonWillebrand factor (vWF). These newly formed capillarieswere surrounded by tenascin-positive matrices and fur-ther by a dense infiltration of CD68-positive cells withfoamy to epitheloid appearances. Some of these cellswere simultaneously positive for CD34, VEGF, and one ofits receptors, Flk-1, and they showed definite mRNA aswell as protein signals for tenascin. In addition, these cellsoften tended to be aligned, which suggested tubuleformation.CONCLUSION: The results suggest that monocyte/macrophage lineage cells are a major source for endo-thelial cells at least in Mucous Retention Cysts and thattenascin produced by those cells plays an important rolein differentiation of endothelial cells.J Oral Pathol Med (2005) 34: 30–8Keywords: angiogenesis; CD31; CD34; endothelial progenitor;Flk-1; Mucous Retention Cyst; tenascin; vascular endothelialgrowth factor