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Hepatobiliary manifestations following two-stages elective laparoscopic restorative proctocolectomy for patients with ulcerative colitis:A prospective observational study
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作者 Tamer A A M Habeeb Abdulzahra Hussain +24 位作者 Mauro Podda Pasquale Cianci Bruce Ramshaw Khaled Safwat Wesam M Amr Tamer Wasefy Alaa A Fiad Mohamed Ibrahim Mansour Adel Mahmoud Moursi GamalOsman Anass Qasem Mohamed Fawzy Mohamed Ibrahim Abo Alsaad Abd-Elfattah Kalmoush MohammedShaaban Nassar Fawzy M Mustafa Mahmoud Hassib Morsi Badawy Ahmed Hamdy Hamdi Elbelkasi Bassam Mousa Abd-Elrahman M Metwalli Walid A Mawla Mostafa M Elaidy Muhammad Ali Baghdadi Ahmed Raafat 《World Journal of Gastrointestinal Surgery》 SCIE 2023年第2期234-248,共15页
BACKGROUND Hepatobiliary manifestations occur in ulcerative colitis(UC)patients.The effect of laparoscopic restorative proctocolectomy(LRP)with ileal pouch anal anastomosis(IPAA)on hepatobiliary manifestations is deba... BACKGROUND Hepatobiliary manifestations occur in ulcerative colitis(UC)patients.The effect of laparoscopic restorative proctocolectomy(LRP)with ileal pouch anal anastomosis(IPAA)on hepatobiliary manifestations is debated.AIM To evaluate hepatobiliary changes after two-stages elective laparoscopic restorative proctocolectomy for patients with UC.METHODS Between June 2013 and June 2018,167 patients with hepatobiliary symptoms underwent two-stage elective LRP for UC in a prospective observational study.Patients with UC and having at least one hepatobiliary manifestation who underwent LRP with IPAA were included in the study.The patients were followed up for four years to assess the outcomes of hepatobiliary manifestations.RESULTS The patients'mean age was 36±8 years,and males predominated(67.1%).The most common hepatobiliary diagnostic method was liver biopsy(85.6%),followed by Magnetic resonance cholangiopancreatography(63.5%),Antineutrophil cytoplasmic antibodies(62.5%),abdominal ultrasonography(35.9%),and Endoscopic retrograde cholangiopancreatography(6%).The most common hepatobiliary symptom was Primary sclerosing cholangitis(PSC)(62.3%),followed by fatty liver(16.8%)and gallbladder stone(10.2%).66.4%of patients showed a stable course after surgery.Progressive or regressive courses occurred in 16.8%of each.Mortality was 6%,and recurrence or progression of symptoms required surgery for 15%.Most PSC patients(87.5%)had a stable course,and only 12.5%became worse.Two-thirds(64.3%)of fatty liver patients showed a regressive course,while one-third(35.7%)showed a stable course.Survival rates were 98.8%,97%,95.8%,and 94%at 12 mo,24 mo,36 mo,and at the end of the follow-up.CONCLUSION In patients with UC who had LRP,there is a positive impact on hepatobiliary disease.It caused an improvement in PSC and fatty liver disease.The most prevalent unchanged course was PSC,while the most common improvement was fatty liver disease. 展开更多
关键词 COURSES Hepatobiliary manifestations Primary sclerosing cholangitis restorative proctocolectomy
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Laparoscopic restorative proctocolectomy with ileal pouch-anal anastomosis for Peutz-Jeghers syndrome with synchronous rectal cancer 被引量:2
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作者 Min-Er Zhong Bei-Zhan Niu +1 位作者 Wu-Yang Ji Bin Wu 《World Journal of Gastroenterology》 SCIE CAS 2016年第22期5293-5296,共4页
We report on a patient diagnosed with PeutzJeghers syndrome(PJS) with synchronous rectal cancer who was treated with laparoscopic restorative proctocolectomy with ileal pouch-anal anastomosis(IPAA). PJS is an autosoma... We report on a patient diagnosed with PeutzJeghers syndrome(PJS) with synchronous rectal cancer who was treated with laparoscopic restorative proctocolectomy with ileal pouch-anal anastomosis(IPAA). PJS is an autosomal dominant syndrome characterized by multiple hamartomatous polyps in the gastrointestinal tract, mucocutaneous pigmentation, and increased risks of gastrointestinal and nongastrointestinal cancer. This report presents a patient with a 20-year history of intermittent bloody stool, mucocutaneous pigmentation and a family history of PJS, which together led to a diagnosis of PJS. Moreover, colonoscopy and biopsy revealed the presence of multiple serried giant pedunculated polyps and rectal adenocarcinoma. Currently, few options exist for the therapeutic management of PJS with synchronous rectal cancer. For this case, we adopted an unconventional surgical strategy and ultimately performed laparoscopic restorative proctocolectomy with IPAA. This procedure is widely considered to be the first-line treatment option for patients with ulcerative colitis or familial adenomatous polyposis. However, there are no previous reports of treating PJS patients with laparoscopic IPAA. Since the operation, the patient has experienced no further episodes of gastrointestinal bleeding and has demonstrated satisfactory bowel control. Laparoscopic restorative proctocolectomy with IPAA may be a safe and effective treatment for patients with PJS with synchronous rectal cancer. 展开更多
关键词 Peutz-Jeghers syndrome LAPAROSCOPY Ileal pouch-anal anastomosis restorative proctocolectomy Multiple polyps in gastrointestinal tract
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Hand-assisted laparoscopic restorative proctocolectomy for ulcerative colitis 被引量:4
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作者 Norimitsu Shimada Hiroki Ohge +7 位作者 Raita Yano Naoki Murao Norifumi Shigemoto Shinnosuke Uegami Yusuke Watadani Kenichiro Uemura Yoshiaki Murakami Taijiro Sueda 《World Journal of Gastrointestinal Surgery》 SCIE CAS 2016年第8期578-582,共5页
AIM To evaluate the utility of hand-assisted laparoscopic restorative proctocolectomy(HALS-RP) compared with the conventional open procedure(OPEN-RP).METHODS Fifty-one patients who underwent restorative total proctoco... AIM To evaluate the utility of hand-assisted laparoscopic restorative proctocolectomy(HALS-RP) compared with the conventional open procedure(OPEN-RP).METHODS Fifty-one patients who underwent restorative total proctocolectomy with rectal mucosectomy and ileal pouch anal anastomosis between January 2008 and July 2015 were retrospectively analyzed.Twentythree patients in the HALS-RP group and twentyfour patients in the OPEN-RP group were compared.Four patients who had purely laparoscopic surgery were excluded.Restorative total proctocolectomy was performed with mucosectomy and a hand-sewn ilealpouch-anal anastomosis.Preoperative comorbidities,intraoperative factors such as blood loss and operative time,postoperative complications,and postoperative course were compared between two groups.RESULTS Patients in both groups were matched with regards to patient age,gender,and American Society of Anesthesiologists score.There were no significant differences in extent of colitis,indications for surgery,preoperative comorbidities,and preoperative medications in the two groups.The median operative time for the HALS-RP group was 369(320-420) min,slightly longer than the OPEN-RP group at 355(318-421) min; this was not statistically significant.Blood loss was significantly less in HALS-RP [300(230-402) m L] compared to OPEN-RP [512(401-1162) m L,P = 0.003].Anastomotic leakage was noted in 3 patients in the HALS-RP group and 2 patients in the OPEN-RP group(13% vs 8.3%,NS).The rates of other postoperative complications and the length of hospital stay were not different between the two groups.CONCLUSION HALS-RP can be performed with less blood loss and smaller skin incisions.This procedure is a feasible technique for total proctocolectomy for ulcerative colitis. 展开更多
关键词 HAND-ASSISTED LAPAROSCOPIC SURGERY ULCERATIVE COLITIS LAPAROSCOPIC SURGERY proctocolectomy
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Cumulative incidence and risk factors for pouch adenomas associated with familial adenomatous polyposis following restorative proctocolectomy
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作者 Hyo Seon Ryu Chang Sik Yu +6 位作者 Young Il Kim Jong Lyul Lee Chan Wook Kim Yong Sik Yoon In Ja Park Seok-Byung Lim Jin Cheon Kim 《World Journal of Gastroenterology》 SCIE CAS 2022年第30期4152-4162,共11页
BACKGROUND The emergence of restorative total proctocolectomy has significantly reduced the lifetime colorectal cancer risk associated with familial adenomatous polyposis(FAP).However,adenomas may develop in the ileal... BACKGROUND The emergence of restorative total proctocolectomy has significantly reduced the lifetime colorectal cancer risk associated with familial adenomatous polyposis(FAP).However,adenomas may develop in the ileal pouch over time and may even progress to carcinoma.We evaluated the cumulative incidence,time to development,and risk factors associated with ileal pouch adenoma.AIM To evaluate the cumulative incidence,time to development,and risk factors associated with pouch adenoma.METHODS In this retrospective,observational study conducted at a tertiary center,95 patients with FAP who underwent restorative proctocolectomy at our center between 1989 and 2018 were consecutively included.The mean follow-up period was 88 mo.RESULTS Pouch adenomas were found in 24(25.3%)patients,with a median time of 52 mo to their first formation.Tubular adenomas were detected in most patients(95.9%).There were no high-grade dysplasia or malignancies.Of the 24 patients with pouch adenomas,13 had all detected adenomas removed.Among the 13 patients who underwent complete adenoma removal,four(38.5%)developed recurrence.Among 11(45.8%)patients with numerous polyps within the pouch,seven(63.6%)exhibited progression of pouch adenoma.The cumulative risks of pouch adenoma development at 5,10,and 15 years after pouch surgery were 15.2%,29.6%,and 44.1%,respectively.Severe colorectal polyposis(with more than 1000 polyps)was a significant risk factor for pouch adenoma development(hazard ratio,2.49;95% confidence interval:1.04-5.96;P=0.041).CONCLUSION Pouch adenomas occur at a fairly high rate in association with FAP after restorative proctocolectomy,and a high colorectal polyp count is associated with pouch adenoma development. 展开更多
关键词 Adenomatous polyposis coli Familial adenomatous polyposis ADENOMA Intestinal polyps proctocolectomy restorative Ileal pouch anal anastomosis
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Postoperative changes of manometry after restorative proctocolectomy in Korean ulcerative colitis patients
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作者 se heon oh yong sik yoon +5 位作者 jong lyul lee chan wook kim in ja park seok-byung lim chang sik yu jin cheon kim 《World Journal of Gastroenterology》 SCIE CAS 2017年第31期5780-5786,共7页
To investigate the changes of postoperative anal sphincter function and bowel frequency in Korean patients with ulcerative colitis (UC). METHODSA total of 127 patients with UC who underwent restorative proctocolectomy... To investigate the changes of postoperative anal sphincter function and bowel frequency in Korean patients with ulcerative colitis (UC). METHODSA total of 127 patients with UC who underwent restorative proctocolectomy (RPC) during 20 years were retrospectively analyzed. The parameters of anal manometry and bowel frequency were compared according to the 6-mo intervals until 24 mo postoperatively. Manometry was used to measure the maximal squeezing pressure (MSP) and maximal resting pressure (MRP). RESULTSMSP decreased after surgery until 6 mo (157 to 142 mmHg); thereafter, it improved and was recovered to and maintained at the preoperative value at 12 mo postoperatively (142-170 mmHg, P < 0.001). Although the decreased MRP (65 to 56 mmHg) improved after 18 mo (62 mmHg), it did not completely recover to the preoperative value. The decreased rectal capacity after surgery (90 to 82 mL) gradually increased up to 150 mL at 24 mo. Although bowel frequency showed significant gradual decreases at each interval, it was stabilized after 12 mo postoperatively (6.5 times/d). CONCLUSIONPostoperative changes of manometry and bowel frequency after restorative proctocolectomy in Korean patients with UC were not different from those in Western patients with UC. 展开更多
关键词 Ulcerative colitis SURGERY Treatment outcome MANOMETRY Bowel frequency restorative proctocolectomy
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Pouchitis and pre-pouch ileitis developed after restorative proctocolectomy for ulcerative colitis:A case report
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作者 Takashi Iwata Takayuki Yamamoto +1 位作者 Satoru Umegae Koichi Matsumoto 《World Journal of Gastroenterology》 SCIE CAS CSCD 2007年第4期643-646,共4页
We report a case of pouchitis and pre-pouch ileitis, and inflammation in the neo-terminal ileum proximal to the pouch, developed after restorative proctocolectomy for ulcerative colitis. A 35-year old female presented... We report a case of pouchitis and pre-pouch ileitis, and inflammation in the neo-terminal ileum proximal to the pouch, developed after restorative proctocolectomy for ulcerative colitis. A 35-year old female presented with fever and abdominal pain five weeks after ileostomy closure following proctocolectomy. Computed tomography showed collection of feces in the pouch and proximal ileum. A drainage tube was placed in the pouch perianally, and purulent feces were discharged. With antibiotic treatment, her symptoms disappeared, but two weeks later, she repeatedly developed fever and abdominal pain along with anal bleeding. Pouchscopy showed mucosal inflammation in both the pouch and the pre-pouch ileum. The mucosal cytokine production was elevated in the pouch and pre-pouch ileum. With antibiotic and corticosteroid therapy, her symptoms were improved along with improvement of endoscopic inflammation and decrease of mucosal cytokine production. The fecal stasis with bacterial overgrowth is the major pathogenesis of pouchitis and pre-pouch ileitis in our case. 展开更多
关键词 Mucosal cytokines POUCHITIS Pre-pouchileitis restorative proctocolectomy Ulcerative colitis
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Role of ileostomy in restorative proctocolectomy
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作者 Gianluca Pellino Guido Sciaudone +1 位作者 Silvestro Canonico Francesco Selvaggi 《World Journal of Gastroenterology》 SCIE CAS CSCD 2012年第15期1703-1707,共5页
Restorative proctocolectomy(RP) is the treatment of choice in patients affected with refractory ulcerative colitis or familial adenomatous polyposis.Surgery in elective settings is often performed in 2 stages,fashioni... Restorative proctocolectomy(RP) is the treatment of choice in patients affected with refractory ulcerative colitis or familial adenomatous polyposis.Surgery in elective settings is often performed in 2 stages,fashioning an ileostomy which is closed 2-3-mo later.It is still debated whether omitting ileostomy could offer advantages in the management of patients undergoing RP. 展开更多
关键词 restorative proctocolectomy ILEOSTOMY Ulcerative colitis Familial adenomatous polyposis Ileopouch-anal anastomosis
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Restorative proctocolectomy with ileal pouch-anal anastomosis for ulcerative colitis:A narrative review 被引量:4
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作者 Luigi Sofo Paola Caprino +1 位作者 Franco Sacchetti Maurizio Bossola 《World Journal of Gastrointestinal Surgery》 SCIE CAS 2016年第8期556-563,共8页
Restorative proctocolectomy with ileal pouch-anal anastomosis(RP-IPAA) is the gold standard surgical treatment for ulcerative colitis.However,despite the widespread use of RP-IPAA,many aspects of this treatment still ... Restorative proctocolectomy with ileal pouch-anal anastomosis(RP-IPAA) is the gold standard surgical treatment for ulcerative colitis.However,despite the widespread use of RP-IPAA,many aspects of this treatment still remain controversial,such as the approach(open or laparoscopic),number of stages in the surgery,type of pouch,and construction type(hand-sewn or stapled ileal pouch-anal anastomosis).The present narrative review aims to discuss current evidence on the short-,mid-,and long-term results of each of these technical alternatives as well as their benefits and disadvantages.A review of the MEDLINE,EMBASE,and Ovid databases was performed to identify studies published through March 2016.Few large,randomized,controlled studies have been conducted,which limits the conclusions that can be drawn regarding controversial issues.The available data from retrospective studies suggest that laparoscopic surgery has no clear advantages compared with open surgery and that one-stage RP-IPAA may be indicated in selected cases.Regarding 2- and 3-stage RP-IPAA,patients who underwent these surgeries differed significantly with respect to clinical and laboratory variables,making any comparisons extremely difficult.The long-term results regarding the pouch type show that the W- and J-reservoirs do not differ significantly,although the J pouch is generally preferred by surgeons.Hand-sewn and stapled ileal pouch-anal anastomoses have their own advantages,and there is no clear benefit of one technique over the other. 展开更多
关键词 ULCERATIVE colitis total proctocolectomy ILEAL POUCH ANAL ANASTOMOSIS surgery laparoscopic
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Root Canal Treatment Outcome and Restorative Condition of Teeth Treated by Undergraduates—A Clinical and Radiographic Evaluation
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作者 Gabriela Tonet Bassani Bartelle Dianeia Miranda dos Reis +1 位作者 Thiago Oliveira Gamba Fabiana Vieira Vier-Pelisser 《Open Journal of Stomatology》 2023年第9期257-270,共14页
Background: The aim was to evaluate the nonsurgical Root Canal Treatment (nRCT) outcome, the restorative condition and the relationship between the coronal restoration quality and the outcome of teeth endodontic treat... Background: The aim was to evaluate the nonsurgical Root Canal Treatment (nRCT) outcome, the restorative condition and the relationship between the coronal restoration quality and the outcome of teeth endodontic treated by undergraduates at the University of Caxias do Sul School of Dentistry (UCS-SD), Brazil, between 2019 and 2021. Materials and Methods: Data from the endodontically treated cases were retrieved, and the patients were recalled for a follow-up appointment at the university. The endodontic diagnosis, radiographs, and the presence of definitive restorations were analyzed in the clinical records. During the follow-up appointment, endodontically treated teeth were classified as present or absent. The nRCT was classified as successful (complete or incomplete healing) or failure (uncertain or unsatisfactory healing). Coronal restoration was classified as absent or present. When it was present, it was classified as permanent or temporary, and its quality as adequate or inadequate restoration. The results were presented as percentages. Results: A total of 257 teeth were endodontically treated. The most prevalent diagnosis was Chronic Apical Periodontitis (33.33%) and the most commonly treated teeth were premolars (46.15%). A total of 52 (21%) treated teeth were clinically and radiographically reexamined. The success rate for the nRCT was 98.08%. About 61.54% of this sample had a definitive composite resin restoration. Conclusion: The nRCT success rate was high. Special attention should be given to the presence and quality of the definitive restoration. Clinical Implications: There was no statistically significant impact between the coronal restoration and the nRCT success (P > 0.05). 展开更多
关键词 Periapical Periodontitis Permanent Dental Restoration Permanent Dental Filling Root Canal Obturation Treatment Outcome
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Autoimmune enteropathy and primary biliary cholangitis after proctocolectomy for ulcerative colitis:A case report and review of the literature 被引量:1
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作者 Qing-Yang Zhou Wei-Xun Zhou +4 位作者 Xi-Yu Sun Bin Wu Wei-Yang Zheng Yue Li Jia-Ming Qian 《World Journal of Gastroenterology》 SCIE CAS 2021年第29期4929-4938,共10页
BACKGROUND Autoimmune enteropathy(AIE)and primary biliary cholangitis(PBC)are both immune-mediated diseases.AIE or PBC complicated with ulcerative colitis(UC)are rare.There are no cases of AIE and PBC diagnosed after ... BACKGROUND Autoimmune enteropathy(AIE)and primary biliary cholangitis(PBC)are both immune-mediated diseases.AIE or PBC complicated with ulcerative colitis(UC)are rare.There are no cases of AIE and PBC diagnosed after proctocolectomy for UC reported before,and the pathogenesis of these comorbidities has not been revealed.CASE SUMMARY A middle-aged woman diagnosed with UC underwent subtotal colectomy and ileostomy due to the steroid-resistant refractory disease,and a restorative proctectomy with ileal pouch-anal anastomosis and proximal neoileostomy was postponed due to active residual rectal inflammation in January 2016.A few months after the neoileostomy,she began to suffer from recurrent episodes of watery diarrhea.She was diagnosed with postcolectomy enteritis and stoma closure acquired a good therapeutic effect.However,her symptoms of diarrhea relapsed in 2019,with different histological features of endoscopic biopsies compared with 2016,which showed apoptotic bodies,a lack of goblet and Paneth cells,and villous blunting.A diagnosis of AIE was established,and the patient’s stool volume decreased dramatically with the treatment of methylprednisolone 60 mg/d for 1 wk and tacrolimus 3 mg/d for 4 d.Meanwhile,her constantly evaluated cholestatic enzymes and high titers of antimitochondrial antibodies indicated the diagnosis of PBC,and treatment with ursodeoxycholic acid(16 mg/kg per day)achieved satisfactory results.CONCLUSION Some immune-mediated diseases may be promoted by operation due to microbial alterations in UC patients.Continuous follow-up is essential for UC patients with postoperative complications. 展开更多
关键词 Autoimmune enteropathy Primary biliary cholangitis Ulcerative colitis proctocolectomy Bacterial translocation Case report
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Acute optic neuritis: a clinical paradigm for evaluation of neuroprotective and restorative strategies?
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作者 Sara S.Qureshi Elliot M.Frohman 《Neural Regeneration Research》 SCIE CAS CSCD 2015年第10期1599-1601,共3页
What makes the acute optic neuritis model unique in an era of trials for neuroprotective and myelin repair agents?Acute optic neuritis(AON)is a common,and often the earliest manifestation of central nervous system... What makes the acute optic neuritis model unique in an era of trials for neuroprotective and myelin repair agents?Acute optic neuritis(AON)is a common,and often the earliest manifestation of central nervous system(CNS)inflammatory demyelinating disorders like multiple sclerosis (MS) and neuromyelitis optica (NMO). 展开更多
关键词 RNFL a clinical paradigm for evaluation of neuroprotective and restorative strategies VEP
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Twelve-month evaluation of the atraumatic restorative treatment approach for class Ⅲ restorations:An interventional study
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作者 Madhuniranjanswamy Mahalakshmamma Shivanna Shabana Ganesh +4 位作者 Sanjeev Balappa Khanagar Sachin Naik Darshan Devang Divakar Abdulaziz Abdullah Al-Kheraif Chitra Jhugroo 《World Journal of Clinical Cases》 SCIE 2020年第18期3999-4009,共11页
BACKGROUND Atraumatic restorative treatment(ART)may be appropriate for populations without accessibility and affordability.More data are required regarding the success rate of ART in anterior teeth.AIM To evaluate the... BACKGROUND Atraumatic restorative treatment(ART)may be appropriate for populations without accessibility and affordability.More data are required regarding the success rate of ART in anterior teeth.AIM To evaluate the clinical performance of restoring class III cavities in anterior teeth of permanent dentition using the ART approach.METHODS A longitudinal interventional field study was carried out at two rural primary health centers,Tumkur district,India.A total of 54 teeth in 39 patients were evaluated for the survival rate of class III restorations in permanent anterior teeth using the ART approach in children and adult populations.Evaluation of ART restoration was carried out using Frencken J criteria,the mean procedure time,patient acceptance and reported pain severity during the ART approach were evaluated using a visual analog scale.Calculation of the cost of ART was also performed.RESULTS The mean time taken to perform the ART procedure was 14.79±5.8 min with the majority of patients reporting only mild pain.At 6 mo follow-up,72.2%remained in a good state,but this reduced to 27%at 12 mo.The cumulative survival rate of the restorations was 94.4%at 6 mo and 80.9%at 12 mo follow-up.Estimation of the direct cost for a single class III restoration was 186.50 INR(2.64 USD).CONCLUSION ART may be a good comprehensive option for basic oral health care for underserved or inaccessible populations,and preventive care for patients. 展开更多
关键词 Atraumatic restorative treatment Anterior teeth COMPOSITE Glass ionomer cement Permanent dentition Rural area
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Handling iron in restorative neuroscience
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作者 Lisa Junl Routhe Torben Moos 《Neural Regeneration Research》 SCIE CAS CSCD 2015年第10期1558-1559,共2页
The transition metal iron exerts essential roles in the central nervous system(CNS)for oxygen transport,myelin formation,and synthesis of neurotransmitters.Being redox active,iron switches between ferrous and ferric... The transition metal iron exerts essential roles in the central nervous system(CNS)for oxygen transport,myelin formation,and synthesis of neurotransmitters.Being redox active,iron switches between ferrous and ferric states.Switching between oxygen states also makes iron an important inducer of reactive oxygen species through the Fenton and Haber-Weiss reactions. 展开更多
关键词 Handling iron in restorative neuroscience
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Evaluation of 4 different bone graft substitutes and autogenous bone grafting in root-end resection osteotomies after retrograde root-filling with Intermediate Restorative Material(IRM):An experimental study in dogs
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作者 Dan-Ake Walivaara Peter Abrahamsson 《Open Journal of Stomatology》 2013年第2期203-208,共6页
Purpose: To investigate the periapical tissue response after root end filling with intermediate restorative material (IRM) and filling of the root-end resection bone defects with autogenous bone or a bone graft substi... Purpose: To investigate the periapical tissue response after root end filling with intermediate restorative material (IRM) and filling of the root-end resection bone defects with autogenous bone or a bone graft substitute in comparison to empty controls. Materials and Methods: Vital roots of the second, third and fourth mandibular premolars in six healthy mongrel dogs were apectomized. The root canals were prepared and sealed with IRM following a standardized surgical procedure. The resection bone defects were either filled with autogenous bone (PB) or one of the bone graft substitutes;CERAMENTTM|BONE VOID FILLER, ChronOS?, TigranTM PTG, Easygraft? CLASSIC or left empty. After 120 days the animals were sacrificed and the specimens were analyzed radiologically and histologically. Kruskal-Wallis and Mann-Whitney tests were performed for statistical evaluation. Results: 34 sections were analyzed histologically. The evaluation revealed a variation in the outcome amongst the tested options, regarding reestablishment of the periapical bone healing and inflammatory infiltration in the sections. According to the tested variables, there was no statistical significant difference between the materials when comparing all groups as a whole. When comparing individual materials to each other there was statistical differences among some of the tested materials. Conclusion: The healing outcome after periapical surgery of a five-wall resection defect could not be increased by infill with autogenous bone or bone graft substitutes. The most important factor for the healing outcome in periapical surgery is the quality of the root-end sealing. The healing outcome after some of the tested bone substitutes, might be improved by longer healing time. 展开更多
关键词 Bone Graft Substitutes Periapical Surgery Autogenous Bone Intermediate restorative Material
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Risk aspects of dental restoratives: From amalgam to tooth-colored materials 被引量:1
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作者 Roland Frankenberger Franklin Garcia-Godoy +2 位作者 Peter E Murray Albert J Feilzer Norbert Kr?mer 《World Journal of Stomatology》 2013年第1期1-11,共11页
Dental materials' choice of patients has considerably changed. Whereas cast gold and amalgam have been the predominant biomaterials for decades, today toothcolored materials like resin-based composites and ceramic... Dental materials' choice of patients has considerably changed. Whereas cast gold and amalgam have been the predominant biomaterials for decades, today toothcolored materials like resin-based composites and ceramics are more and more successful. However, are we going to replace a good but biologically questionable material(amalgam) with an equal material(resin composite) being more esthetic but also biologically questionable? For amalgam, long-term clinical studies reported some significant hints that in single cases amalgam may be a health hazard for patients, finally Norway banned amalgam completely. The main advantage of a resin-based composite over amalgam is its tooth-like appearance and more or less absence of extensive preparation rules. For many years it was believed that resin-based composites may cause pulpal injury. However, pulpal injury associated with the use of resin-based composites is not correlated with their cytotoxic properties. Nevertheless, resin-based composites and other dental materials require rigorous safety evaluation and continuous monitoring to prevent adverse events similar like with amalgam. Because of nonbiocompatible pulp responses to resin-based composites and amalgam, they should not be placed in direct contact with the dental pulp. The less dentin remaining in the floor of preparations between resin-based composites or other dental materials is more likely to cause pulpitis. Percentage of patients and dental practitioners who display allergic reactions is between 0.7% and 2%. The release of cytotoxic monomers from resin-based materials is highest after polymerization and much lower after 1 wk. Substances released from resin-based composites have been shown to be toxic in cytotoxicity tests. Nevertheless, in vitro cytotoxicity assays have shown that amalgam has greater toxic effects than resin-based composites, sometime 100-700-fold higher. Altogether, the risk of side-effects is low, but not zero, especially for dental personnel. 展开更多
关键词 EXPOSURES restoratives AMALGAM Resinbased composites Adhesives
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Integration of Campus Greening and Restorative Landscape Construction in Vocational Colleges
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作者 XUE Lin GU Qiang 《Journal of Landscape Research》 2019年第5期27-28,31,共3页
This paper introduced the campus greening and construction of restorative landscapes,and then the principles of integrating campus greening and construction of restorative landscape for vocational colleges.Furthermore... This paper introduced the campus greening and construction of restorative landscapes,and then the principles of integrating campus greening and construction of restorative landscape for vocational colleges.Furthermore,the means and prospects of integrating campus greening and restorative landscape construction were proposed. 展开更多
关键词 CAMPUS GREENING restorative landscape construction VOCATIONAL COLLEGE INTEGRATION
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An <i>in vitro</i>study of antimicrobial agents incorporated into interim restorative materials
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作者 Arely Denisse Garza Garza Violet I. Haraszthy +3 位作者 Jane D. Brewer Edward Monaco Jennifer Kuracina Joseph J. Zambon 《Open Journal of Stomatology》 2013年第1期94-98,共5页
Aim: To test the hypothesis that antimicrobial agents can be incorporated into bis-acryl resin and that the material will inhibit bacterial growth in vitro. Materials and Methods: 0.5%, 1% and 2% triclosan (5-chloro-2... Aim: To test the hypothesis that antimicrobial agents can be incorporated into bis-acryl resin and that the material will inhibit bacterial growth in vitro. Materials and Methods: 0.5%, 1% and 2% triclosan (5-chloro-2-(2,4-dichlorophenoxy)phenol) and 0.05% 0.01% and 0.15% cetylpyridinium chloride were incorporated into bis-acryl resins and molded into 1 mm × 10 mm discs. The discs were placed on bacterial culture media inoculated with Aggregatibacter actinomycetemcomitans strain Y4, Porphyromonas gingivalis strain SUNYaB A7A1-28 or Streptococcus gordonii strain 10558, incubated and examined for growth inhibition. Results: Triclosan-containing bisacryl resin discs produced dose-dependent zones of growth inhibition for A. actinomycetemcomitans but not S. gordonii or P. gingivalis. Cetylpyridinium chloride-containing discs produced dose-dependent zones of growth inhibition for Porphyromonas gingivalis and Streptococcus gordonii but not A. actinomycetemcomitans. Conclusion: Triclosan and cetylpyridinium chloride can be incorporated into bis-acryl resin and can inhibit the growth of plaque bacteria in a dose dependent manner. Bis-acryl resin containing antimicrobial agents may inhibit in vivo plaque accumulation and gingival inflammation. 展开更多
关键词 Interim RESTORATIONS Bis-Acryl Resin TRICLOSAN CETYLPYRIDINIUM Chloride
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Effect of Polishing Procedure on the Roughness and Bacterial Adhesion of Provisional Restorative Materials
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作者 Néstor Usiel Lara-Jara Gabriel Fernando Romo-Ramírez +5 位作者 María del Pilar Goldaracena-Azuara Antonio Aragón-Piñ a Claudia Butrón-Téllez Girón María Verónica Méndez-González Ana María González-Amaro 《Microscopy Research》 2018年第2期9-18,共10页
Provisional prosthetic restoration materials are exposed to oral cavity producing on the surface biofilm where different factors such as surface roughness and porosity can condition their formation and organization an... Provisional prosthetic restoration materials are exposed to oral cavity producing on the surface biofilm where different factors such as surface roughness and porosity can condition their formation and organization and can create stagnation areas that promote the bonding of organic particles, thus facilitating the formation and maturation of the biofilm. The purpose of this study was to compare surface roughness of two provisional prosthetic restorations materials and their bacterial susceptibility. In this study, two provisional restoration materials were used in two groups, A polymethyl methacrylate acrylic (NicTone MDC DENTAL) and B bis-acryl resin (Protemp 4 ESPE 3M). A total of 80 samples (40 samples of each material) were in thick plates of 10 × 10 mm and 2 mm high. 20 samples of each material were polished, while 20 were left unpolished. Subsequently, the samples were observed by Atomic Force Microscopy for their evaluation of surface roughness. The values were analyzed with t-test, Mann-Whitney U test and Kruskal Wallis test. The samples were microbiologically inoculated with the strains obtained and identified from a provisional polymethyl methacrylate acrylic restoration in a patient, in order to observe bacterial adhesion using a Scanning Electron Microscope. Two strains, Enterococcus faecalis and Pseudomona luteola, were identified. The presence of the microorganisms was observed on the surface of both materials, either polished or unpolished, with a lower level of microorganism adhesion found on the bis-acrylic resin. There was a significant difference about surface roughness in the groups A and B with p -8). We found that the polished bis-acrylic resin showed lower surface roughness and bacterial adhesion in comparison with the polymethyl methacrylate. 展开更多
关键词 Surface Analysis BACTERIAL ADHESION Provisional Fixed RESTORATION
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The Spiritual Principles of Restorative Justice and the Efficiency Principles of Modern Capitalism:A Path Towards Reconciliation?
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作者 Nikos Valance 《Journal of Philosophy Study》 2019年第11期675-682,共8页
Restorative justice represents a paradigm shift away from a retributive approach to justice to one of restoration as a way of healing the harms to individuals and communities that have been affected by crime.It works ... Restorative justice represents a paradigm shift away from a retributive approach to justice to one of restoration as a way of healing the harms to individuals and communities that have been affected by crime.It works from a recognition and acceptance of the interrelationships and interdependencies of individuals within a community.Sustainable development operates from the same point of view,recognizing that to heal and sustain the physical environment,interrelationships and interdependencies must be recognized.In the restorative process,in order for a healing to take place the victim’s voice is made prominent and the offender must take responsibility and be accountable for the harm that has occurred.In the context of more and more acceptance by corporations of the importance of sustainability,and by inference the acceptance of the paradigm shift that sustainability relies on,will corporations become ready to participate in restorative processes? 展开更多
关键词 restorative justice sustainable development corporations restorative practices paradigm shift CAPITALISM whole systems
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Judicial Protection and Restorative Justice of the Support Rights and Interests for the Elderly Rights——Taking the Sample of Judgement Documents from 2013-2018 as Analysis Object
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作者 赵树坤 殷源 LU Mimi(译) 《The Journal of Human Rights》 2019年第4期437-456,共20页
The support rights and interests of the elderly is one of the core issues of an aging society.Judging from the judgment documents on support dispute cases in recent years,maintenance disputes mainly occur in the kinsh... The support rights and interests of the elderly is one of the core issues of an aging society.Judging from the judgment documents on support dispute cases in recent years,maintenance disputes mainly occur in the kinship structure of parents and children,the support obligators are mainly men,the content of support is mainly material appeals.In the judicial process,there are some characteristics worth studying,such as lawyers,intervention,judges,thinking,reasoning and expression.In view of this,the current development direction of the judicial protection of elderly’s rights and interests in China should be carried out around the goal of"restorative justice"and efforts should be made,such concept renewal,system improvement and spiritual support prospect. 展开更多
关键词 the elderly SUPPORT RIGHTS and interests restorative JUSTICE
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