BACKGROUND Invaginated teeth pose greater challenges in clinical management because of their complex configuration.With advancements in equipment and materials,such as the dental operation microscope,cone-beam compute...BACKGROUND Invaginated teeth pose greater challenges in clinical management because of their complex configuration.With advancements in equipment and materials,such as the dental operation microscope,cone-beam computed tomography and mineral trioxide aggregate,the preservation rate of type Ⅲ dens invaginatus could be greatly increased.CASE SUMMARY This case report presented a 31-year-old woman with complaints of spontaneous swelling and pain in the right maxillary lateral tooth.With the aid of cone-beam computed tomography,type Ⅲ dens invaginatus with apical periodontitis was diagnosed and confirmed.Three-visit endodontic treatment was performed.In the first visit,the invagination was carefully removed under the dental operation microscope,and chemomechanical preparation was done.In the second visit,mineral trioxide aggregate apical barrier surgery was performed in this tooth.In the third visit,the canal was finally obturated with thermoplastic gutta-percha to recover the crown morphology.A 26-mo follow-up revealed a satisfied outcome both in the radiographic and oral examinations.CONCLUSION In this case,removal of the entire abnormal structure provided great convenience for the follow-up treatment.When confronted with the same clinical case in the future,we can take a similar approach to address it.展开更多
目的:探讨iRoot BP plus与MTA根尖屏障术治疗年轻恒牙慢性根尖周炎的效果。方法:将122例年轻恒牙慢性根尖周炎患者随机分为试验组(n=61,患牙61颗)和对照组(n=61,患牙61颗),试验组行iRoot BP plus根尖屏障术,对照组行MTA根尖屏障术,比较...目的:探讨iRoot BP plus与MTA根尖屏障术治疗年轻恒牙慢性根尖周炎的效果。方法:将122例年轻恒牙慢性根尖周炎患者随机分为试验组(n=61,患牙61颗)和对照组(n=61,患牙61颗),试验组行iRoot BP plus根尖屏障术,对照组行MTA根尖屏障术,比较2组患者术后3、6、9、12个月的旧根尖周指数(old periapical index,O-PAI)、根尖透射区面积、疗效、治疗次数、炎症因子水平。采用SPSS 19.0软件包对数据进行统计学分析。结果:术后12个月,试验组和对照组的O-PAI评级为(1.48±0.36)、(1.71±0.42),根尖透射区面积为(0.51±0.14)、(1.09±0.31),2组O-PAI评级和根尖透射区面积相比差异显著(P<0.05)。术后3、6、12个月,2组患者的O-PAI评级逐渐降低(P<0.05),根尖透射区面积逐渐减少(P<0.05)。术后12个月,试验组和对照组的成功率为98.36%、88.52%,组间差异显著(P<0.05)。试验组和对照组患者的治疗次数为(3.64±0.58)、(4.72±0.61)次,组间差异显著(P<0.05)。术后3个月,试验组和对照组患者的血清hs-CRP水平为(6.89±1.13)、(7.25±1.40)mg/L,与治疗前相比差异显著(P<0.05);治疗3个月后,试验组和对照组患者的血清IL-6水平为(82.04±19.62)、(87.52±20.85)mg/L,与治疗前相比差异显著(P<0.05)。2组患者治疗前、后的血清IL-6、hs-CRP水平组间相比,差异无显著性(P>0.05)。结论:iRoot BP plus根尖屏障术治疗年轻恒牙慢性根尖周炎有助于降低O-PAI指数,减少术后就诊次数,术后成功率更高。展开更多
目的探讨iRoot BP Plus根尖屏障术对年轻恒牙根尖炎患者的治疗效果及安全性。方法选取2020年1月至2021年10月新钢中心医院收治的72例年轻恒牙根尖炎患儿作为研究对象,按照随机数字表法分为对照组与研究组,每组36例。对照组采用Vitapex...目的探讨iRoot BP Plus根尖屏障术对年轻恒牙根尖炎患者的治疗效果及安全性。方法选取2020年1月至2021年10月新钢中心医院收治的72例年轻恒牙根尖炎患儿作为研究对象,按照随机数字表法分为对照组与研究组,每组36例。对照组采用Vitapex根尖诱导成形术治疗,研究组采用iRoot BP Plus根尖屏障术治疗,两组均观察至术后3个月。比较两组临床疗效及局部肿痛程度[视觉模拟评分法(VAS)]、龈沟液内细胞生长因子水平[碱性成纤维细胞生长因子(bFGF)、血管内皮细胞生长因子(VEGF)]、牙根生长发育状况、并发症发生率。结果研究组治疗总有效率为94.44%,高于对照组的77.78%,差异有统计学意义(P<0.05);术后1个月,两组局部肿痛VAS评分低于术前,且研究组低于对照组,差异有统计学意义(P<0.05);术后3个月,两组龈沟液内bFGF、VEGF均高于术前,且研究组高于对照组,差异有统计学意义(P<0.05);术后3个月,两组患牙冠根比及患牙根管壁厚度均高于术前,且研究组高于对照组,差异有统计学意义(P<0.05);研究组术后3个月并发症发生率为5.56%,低于对照组的25.00%,差异有统计学意义(P<0.05)。结论iRoot BP Plus根尖屏障术治疗年轻恒牙根尖炎患者疗效确切,能减轻肿痛等症状,调节龈沟液相关细胞生长因子表达,促进牙根生长发育,且安全性高,值得临床推广应用。展开更多
AIM:To investigate whether miRNA-155(miR-155)dysregulates apical junctional complex(AJC)protein expression in experimental severe acute pancreatitis(SAP).METHODS:Twenty-four male BALB/c mice were randomly assigned to ...AIM:To investigate whether miRNA-155(miR-155)dysregulates apical junctional complex(AJC)protein expression in experimental severe acute pancreatitis(SAP).METHODS:Twenty-four male BALB/c mice were randomly assigned to two groups:the SAP group(n=12)receiving sequential intraperitoneal injection of 50μg/kg caerulein and 10 mg/kg lipopolysaccharide over 6h,and the control group(n=12)receiving intraperitoneal injection of normal saline.Animals were sacrificed3 h following the last injection for collection of blood samples and pancreas and distal ileal segment specimens.Routine pancreas and intestine histology was used to assess SAP pathology and intestinal epithelial barrier damage.Levels of serum amylase,diamine oxidase(DAO),and tumor necrosis factor(TNF)-αwere determined using commercial kits.Total RNA samples were isolated from intestinal epithelial specimens and reversely transcribed into cDNA.miR-155 and RhoA mRNA expression profiles were determined using quantitative real-time polymerase chain reaction.Target genes for miR-155 were predicted using the miRTarBase database,RNA22 and PicTar computational methods.Western blotting was performed to quantitate the protein expression levels of the target gene RhoA,as well as zonula occludens(ZO)-1 and E-cadherin,two AJC component proteins.RESULTS:Intraperitoneal injection of caerulein and lipopolysaccharide successfully induced experimental acute pancreatic damage(SAP vs control,10.0±2.0vs 3.2±1.2,P<0.01)and intestinal epithelial barrier damage(3.2±0.7 vs 1.4±0.7,P<0.01).Levels of serum amylase(21.6±5.1 U/mL vs 14.3±4.2 U/mL,P<0.01),DAO(21.4±4.1 mg/mL vs 2.6±0.8 mg/mL,P<0.01),and TNF-α(61.0±15.1 ng/mL vs 42.9±13.9 ng/mL,P<0.01)increased significantly in SAP mice compared to those in control mice.miR-155 was significantly overexpressed in SAP intestinal epithelia(1.94±0.50 fold vs 1.03±0.23 fold,P<0.01),and RhoA gene containing three miR-155-specific binding sites in the three prime untranslated regions was one of the target genes for miR-155.RhoA(22.7±5.8 folds vs 59.6±11.6 folds,P<0.01),ZO-1(46±18 folds vs68±19 folds,P<0.01),and E-cadherin proteins(48±15 folds vs 77±18 folds,P<0.01)were underexpressed in SAP intestinal epithelia although RhoA mRNA expression was not significantly changed in SAP(0.97±0.18 folds vs 1.01±0.17 folds,P>0.05).CONCLUSION:TNF-α-regulated miR-155 overexpression inhibits AJC component protein syntheses of ZO-1,and E-cadherin by downregulating post-transcriptional RhoA expression,and disrupts intestinal epithelial barrier in experimental SAP.展开更多
目的 探讨和比较生物陶瓷材料无机三氧化矿物凝聚体(mineral trioxide aggregate, MTA)和iRoot BP plus在成年根尖孔未闭合患牙形成根尖屏障中的临床应用效果。方法 将200颗根尖孔未闭合恒牙根尖周炎患牙随机分为两组,分别采用MTA和iRoo...目的 探讨和比较生物陶瓷材料无机三氧化矿物凝聚体(mineral trioxide aggregate, MTA)和iRoot BP plus在成年根尖孔未闭合患牙形成根尖屏障中的临床应用效果。方法 将200颗根尖孔未闭合恒牙根尖周炎患牙随机分为两组,分别采用MTA和iRoot BP plus制备根尖屏障。比较两种生物陶瓷材料在制备根尖屏障时的操作时间,分析不同根尖孔破坏类型、根尖区病变范围、根尖区充填情况以及患者年龄段对治疗成功率的影响。结果 iRoot BP plus组制备根尖屏障的操作时间比MTA组短,差异有统计学意义(P<0.05);不同根尖孔破坏类型、根尖区病变范围、根尖区充填情况以及患者年龄段对治疗成功率并无显著影响(P>0.05)。结论 MTA和iRoot BP plus在治疗根尖孔未闭合恒牙根尖周炎的临床效果相似,但iRoot BP plus的操作性更好。展开更多
BACKGROUND Pulp revascularization is a novel way to treat immature teeth with periapical disease,and the technique has become increasingly well established in recent years.By puncturing the periapical tissue,bleeding ...BACKGROUND Pulp revascularization is a novel way to treat immature teeth with periapical disease,and the technique has become increasingly well established in recent years.By puncturing the periapical tissue,bleeding is induced,and a blood clot is formed in the root canal.The blood clot acts as a natural bioscaffold onto which mesenchymal stem cells from periapical tissue can be seeded and restore pulp vascularity,thus promoting root development as well as apical closure.Although the effect of pulp revascularization is ideal,there are certain requirements for the apical condition of the teeth.The apical barrier technique and apexification are still indispensable for teeth that cannot achieve ideal blood clot formation.In addition,a meta-analysis of several clinical studies concluded that pulp revascu-larization has no significant advantages over other treatments.CASE SUMMARY A 10-year-old girl complained of pain in the right upper and lower posterior teeth for 2 d.Clinical and radiological examinations revealed that both the right maxillary and mandibular second premolars were immature with periapical radiolucency.The right maxillary second premolar was treated by pulp revascu-larization,while the right mandibular second premolar was treated by conven-tional apical barrier surgery after revascularization failed.The purpose of this report is to compare the different root maturation processes induced by the pulp revascularization and apical barrier techniques in the same patient in homonymous teeth from different jaws.Twelve months of follow-up showed that the apical foramen of both teeth presented a clear tendency to close;however,the tooth treated with pulp revascularization showed a significant increase in root length as well as root canal wall thickness.CONCLUSION For the treatment of nonvital immature teeth,pulp revascularization showed a superior therapeutic effect in comparison with the apical barrier technique.展开更多
目的探究口腔显微镜下应用生物陶瓷材料IRoot BP Plus根尖屏障术治疗慢性根尖周炎伴根尖未闭合患者的效果。方法选取慢性根尖周炎伴根尖未闭合的患者60例作为研究对象,采用随机数字表分为3组,各20例。A组在常规治疗的基础上进行口腔显...目的探究口腔显微镜下应用生物陶瓷材料IRoot BP Plus根尖屏障术治疗慢性根尖周炎伴根尖未闭合患者的效果。方法选取慢性根尖周炎伴根尖未闭合的患者60例作为研究对象,采用随机数字表分为3组,各20例。A组在常规治疗的基础上进行口腔显微镜下的IRoot BP Plus根尖屏障术治疗,B组进行常规治疗,C组在常规治疗的基础上进行根管填充治疗。比较3组口腔治疗操作时间和患者术后疼痛时间,治疗前后血清炎性因子[C反应蛋白(CRP)、白介素6(IL-6)、白介素1β(IL-1β)、肿瘤坏死因子α(TNF-α)]水平以及根尖周指数。结果A组术后疼痛时间显著短于B组和C组(均P<0.001),且B组术后疼痛时间又短于C组(P<0.001);治疗后1个月,A组血清CRP,IL-6,IL-1β和TNF-α水平均显著低于B组和C组(P<0.05或P<0.001);治疗后3个月及治疗后6个月,A组根尖周指数显著低于B组及C组(P<0.05或P<0.001)。结论口腔显微镜下生物陶瓷IRoot BP Plus根尖屏障术用于慢性根尖周炎伴根尖未闭合患者可缓解其术后疼痛,减轻炎症反应并改善根尖状况。展开更多
基金the Priority Academic Program Development of Jiangsu Higher Education Institutions,No.PAPD2018-87.
文摘BACKGROUND Invaginated teeth pose greater challenges in clinical management because of their complex configuration.With advancements in equipment and materials,such as the dental operation microscope,cone-beam computed tomography and mineral trioxide aggregate,the preservation rate of type Ⅲ dens invaginatus could be greatly increased.CASE SUMMARY This case report presented a 31-year-old woman with complaints of spontaneous swelling and pain in the right maxillary lateral tooth.With the aid of cone-beam computed tomography,type Ⅲ dens invaginatus with apical periodontitis was diagnosed and confirmed.Three-visit endodontic treatment was performed.In the first visit,the invagination was carefully removed under the dental operation microscope,and chemomechanical preparation was done.In the second visit,mineral trioxide aggregate apical barrier surgery was performed in this tooth.In the third visit,the canal was finally obturated with thermoplastic gutta-percha to recover the crown morphology.A 26-mo follow-up revealed a satisfied outcome both in the radiographic and oral examinations.CONCLUSION In this case,removal of the entire abnormal structure provided great convenience for the follow-up treatment.When confronted with the same clinical case in the future,we can take a similar approach to address it.
文摘目的:探讨iRoot BP plus与MTA根尖屏障术治疗年轻恒牙慢性根尖周炎的效果。方法:将122例年轻恒牙慢性根尖周炎患者随机分为试验组(n=61,患牙61颗)和对照组(n=61,患牙61颗),试验组行iRoot BP plus根尖屏障术,对照组行MTA根尖屏障术,比较2组患者术后3、6、9、12个月的旧根尖周指数(old periapical index,O-PAI)、根尖透射区面积、疗效、治疗次数、炎症因子水平。采用SPSS 19.0软件包对数据进行统计学分析。结果:术后12个月,试验组和对照组的O-PAI评级为(1.48±0.36)、(1.71±0.42),根尖透射区面积为(0.51±0.14)、(1.09±0.31),2组O-PAI评级和根尖透射区面积相比差异显著(P<0.05)。术后3、6、12个月,2组患者的O-PAI评级逐渐降低(P<0.05),根尖透射区面积逐渐减少(P<0.05)。术后12个月,试验组和对照组的成功率为98.36%、88.52%,组间差异显著(P<0.05)。试验组和对照组患者的治疗次数为(3.64±0.58)、(4.72±0.61)次,组间差异显著(P<0.05)。术后3个月,试验组和对照组患者的血清hs-CRP水平为(6.89±1.13)、(7.25±1.40)mg/L,与治疗前相比差异显著(P<0.05);治疗3个月后,试验组和对照组患者的血清IL-6水平为(82.04±19.62)、(87.52±20.85)mg/L,与治疗前相比差异显著(P<0.05)。2组患者治疗前、后的血清IL-6、hs-CRP水平组间相比,差异无显著性(P>0.05)。结论:iRoot BP plus根尖屏障术治疗年轻恒牙慢性根尖周炎有助于降低O-PAI指数,减少术后就诊次数,术后成功率更高。
文摘目的探讨iRoot BP Plus根尖屏障术对年轻恒牙根尖炎患者的治疗效果及安全性。方法选取2020年1月至2021年10月新钢中心医院收治的72例年轻恒牙根尖炎患儿作为研究对象,按照随机数字表法分为对照组与研究组,每组36例。对照组采用Vitapex根尖诱导成形术治疗,研究组采用iRoot BP Plus根尖屏障术治疗,两组均观察至术后3个月。比较两组临床疗效及局部肿痛程度[视觉模拟评分法(VAS)]、龈沟液内细胞生长因子水平[碱性成纤维细胞生长因子(bFGF)、血管内皮细胞生长因子(VEGF)]、牙根生长发育状况、并发症发生率。结果研究组治疗总有效率为94.44%,高于对照组的77.78%,差异有统计学意义(P<0.05);术后1个月,两组局部肿痛VAS评分低于术前,且研究组低于对照组,差异有统计学意义(P<0.05);术后3个月,两组龈沟液内bFGF、VEGF均高于术前,且研究组高于对照组,差异有统计学意义(P<0.05);术后3个月,两组患牙冠根比及患牙根管壁厚度均高于术前,且研究组高于对照组,差异有统计学意义(P<0.05);研究组术后3个月并发症发生率为5.56%,低于对照组的25.00%,差异有统计学意义(P<0.05)。结论iRoot BP Plus根尖屏障术治疗年轻恒牙根尖炎患者疗效确切,能减轻肿痛等症状,调节龈沟液相关细胞生长因子表达,促进牙根生长发育,且安全性高,值得临床推广应用。
基金Supported by The research grants from Shanghai Municipal Science and Technology CommissionNo.114119b2900+1 种基金Shanghai Municipal Key Laboratory of Pancreatic DiseaseNo.P2012006
文摘AIM:To investigate whether miRNA-155(miR-155)dysregulates apical junctional complex(AJC)protein expression in experimental severe acute pancreatitis(SAP).METHODS:Twenty-four male BALB/c mice were randomly assigned to two groups:the SAP group(n=12)receiving sequential intraperitoneal injection of 50μg/kg caerulein and 10 mg/kg lipopolysaccharide over 6h,and the control group(n=12)receiving intraperitoneal injection of normal saline.Animals were sacrificed3 h following the last injection for collection of blood samples and pancreas and distal ileal segment specimens.Routine pancreas and intestine histology was used to assess SAP pathology and intestinal epithelial barrier damage.Levels of serum amylase,diamine oxidase(DAO),and tumor necrosis factor(TNF)-αwere determined using commercial kits.Total RNA samples were isolated from intestinal epithelial specimens and reversely transcribed into cDNA.miR-155 and RhoA mRNA expression profiles were determined using quantitative real-time polymerase chain reaction.Target genes for miR-155 were predicted using the miRTarBase database,RNA22 and PicTar computational methods.Western blotting was performed to quantitate the protein expression levels of the target gene RhoA,as well as zonula occludens(ZO)-1 and E-cadherin,two AJC component proteins.RESULTS:Intraperitoneal injection of caerulein and lipopolysaccharide successfully induced experimental acute pancreatic damage(SAP vs control,10.0±2.0vs 3.2±1.2,P<0.01)and intestinal epithelial barrier damage(3.2±0.7 vs 1.4±0.7,P<0.01).Levels of serum amylase(21.6±5.1 U/mL vs 14.3±4.2 U/mL,P<0.01),DAO(21.4±4.1 mg/mL vs 2.6±0.8 mg/mL,P<0.01),and TNF-α(61.0±15.1 ng/mL vs 42.9±13.9 ng/mL,P<0.01)increased significantly in SAP mice compared to those in control mice.miR-155 was significantly overexpressed in SAP intestinal epithelia(1.94±0.50 fold vs 1.03±0.23 fold,P<0.01),and RhoA gene containing three miR-155-specific binding sites in the three prime untranslated regions was one of the target genes for miR-155.RhoA(22.7±5.8 folds vs 59.6±11.6 folds,P<0.01),ZO-1(46±18 folds vs68±19 folds,P<0.01),and E-cadherin proteins(48±15 folds vs 77±18 folds,P<0.01)were underexpressed in SAP intestinal epithelia although RhoA mRNA expression was not significantly changed in SAP(0.97±0.18 folds vs 1.01±0.17 folds,P>0.05).CONCLUSION:TNF-α-regulated miR-155 overexpression inhibits AJC component protein syntheses of ZO-1,and E-cadherin by downregulating post-transcriptional RhoA expression,and disrupts intestinal epithelial barrier in experimental SAP.
文摘目的 探讨和比较生物陶瓷材料无机三氧化矿物凝聚体(mineral trioxide aggregate, MTA)和iRoot BP plus在成年根尖孔未闭合患牙形成根尖屏障中的临床应用效果。方法 将200颗根尖孔未闭合恒牙根尖周炎患牙随机分为两组,分别采用MTA和iRoot BP plus制备根尖屏障。比较两种生物陶瓷材料在制备根尖屏障时的操作时间,分析不同根尖孔破坏类型、根尖区病变范围、根尖区充填情况以及患者年龄段对治疗成功率的影响。结果 iRoot BP plus组制备根尖屏障的操作时间比MTA组短,差异有统计学意义(P<0.05);不同根尖孔破坏类型、根尖区病变范围、根尖区充填情况以及患者年龄段对治疗成功率并无显著影响(P>0.05)。结论 MTA和iRoot BP plus在治疗根尖孔未闭合恒牙根尖周炎的临床效果相似,但iRoot BP plus的操作性更好。
基金Supported by The Natural Science Foundation of Shaanxi Province,China,No.2022JM-447.
文摘BACKGROUND Pulp revascularization is a novel way to treat immature teeth with periapical disease,and the technique has become increasingly well established in recent years.By puncturing the periapical tissue,bleeding is induced,and a blood clot is formed in the root canal.The blood clot acts as a natural bioscaffold onto which mesenchymal stem cells from periapical tissue can be seeded and restore pulp vascularity,thus promoting root development as well as apical closure.Although the effect of pulp revascularization is ideal,there are certain requirements for the apical condition of the teeth.The apical barrier technique and apexification are still indispensable for teeth that cannot achieve ideal blood clot formation.In addition,a meta-analysis of several clinical studies concluded that pulp revascu-larization has no significant advantages over other treatments.CASE SUMMARY A 10-year-old girl complained of pain in the right upper and lower posterior teeth for 2 d.Clinical and radiological examinations revealed that both the right maxillary and mandibular second premolars were immature with periapical radiolucency.The right maxillary second premolar was treated by pulp revascu-larization,while the right mandibular second premolar was treated by conven-tional apical barrier surgery after revascularization failed.The purpose of this report is to compare the different root maturation processes induced by the pulp revascularization and apical barrier techniques in the same patient in homonymous teeth from different jaws.Twelve months of follow-up showed that the apical foramen of both teeth presented a clear tendency to close;however,the tooth treated with pulp revascularization showed a significant increase in root length as well as root canal wall thickness.CONCLUSION For the treatment of nonvital immature teeth,pulp revascularization showed a superior therapeutic effect in comparison with the apical barrier technique.
文摘目的探究口腔显微镜下应用生物陶瓷材料IRoot BP Plus根尖屏障术治疗慢性根尖周炎伴根尖未闭合患者的效果。方法选取慢性根尖周炎伴根尖未闭合的患者60例作为研究对象,采用随机数字表分为3组,各20例。A组在常规治疗的基础上进行口腔显微镜下的IRoot BP Plus根尖屏障术治疗,B组进行常规治疗,C组在常规治疗的基础上进行根管填充治疗。比较3组口腔治疗操作时间和患者术后疼痛时间,治疗前后血清炎性因子[C反应蛋白(CRP)、白介素6(IL-6)、白介素1β(IL-1β)、肿瘤坏死因子α(TNF-α)]水平以及根尖周指数。结果A组术后疼痛时间显著短于B组和C组(均P<0.001),且B组术后疼痛时间又短于C组(P<0.001);治疗后1个月,A组血清CRP,IL-6,IL-1β和TNF-α水平均显著低于B组和C组(P<0.05或P<0.001);治疗后3个月及治疗后6个月,A组根尖周指数显著低于B组及C组(P<0.05或P<0.001)。结论口腔显微镜下生物陶瓷IRoot BP Plus根尖屏障术用于慢性根尖周炎伴根尖未闭合患者可缓解其术后疼痛,减轻炎症反应并改善根尖状况。
