背景:生物活性物质Biodentine具有良好的抗压强度、粘接强度及较少的微渗漏等诸多优点,已被成功应用于多种临床适应证,然而有关Biodentine是否可促进成骨细胞成骨的研究罕见。目的:研究不同浓度Biodentine对人骨肉瘤细胞MG-63增殖及成...背景:生物活性物质Biodentine具有良好的抗压强度、粘接强度及较少的微渗漏等诸多优点,已被成功应用于多种临床适应证,然而有关Biodentine是否可促进成骨细胞成骨的研究罕见。目的:研究不同浓度Biodentine对人骨肉瘤细胞MG-63增殖及成骨作用的影响。方法:制备不同浓度梯度(1、1/2、1/4、1/8和1/16)的Biodentine浸提液。将人骨肉瘤细胞MG-63分6组培养,分别加入MEM培养液(对照组)及5种浓度的Biodentine浸提液,采用CCK-8法检测培养第1,3,5,7天的细胞增殖,筛选Biodentine浸提液最佳浓度。将人骨肉瘤细胞MG-63分2组培养,分别加入MEM培养液(空白对照组)及最佳浓度的Biodentine材料浸提液(实验组),培养第1,3,5,7天,采用Real-time PCR法检测细胞中成骨因子Runx2 m RNA表达;培养第10,14天行茜素红染色,观察细胞钙化结节形成情况。结果与结论:(1)培养第1,3天时,不同浓度Biodentine材料浸提液组活细胞数量与对照组相比无差异;培养第5天,1浓度材料浸提液组活细胞数量明显低于对照组(P<0.05),1/2、1/4、1/8浓度材料浸提液组活细胞数量与对照组比较无差异,1/16浓度材料浸提液组活细胞数量明显高于对照组(P<0.05),因此实验选择1/16浓度材料浸提液进行后续实验;(2)实验组培养第1,3,5,7天的Runx2 m RNA表达量分别为空白对照组的1.14,5.29,1.08,2.11倍(P均<0.05);(3)培养第10天时,实验组与空白对照组均未见矿化结节;培养第14天,两组均可见矿化结节,实验组的面积更大、颜色更深;(4)结果表明在一定浓度下,Biodentine可促进人骨肉瘤细胞MG-63增殖及成骨活性。展开更多
Mineral trioxide aggregate（MTA） is considered at the present time as the gold standard for root-end filling in endodontic surgery.However, this biocompatible material presents several drawbacks such as a long settin...Mineral trioxide aggregate（MTA） is considered at the present time as the gold standard for root-end filling in endodontic surgery.However, this biocompatible material presents several drawbacks such as a long setting time and handling difficulties. The aim of this article is to present a new commercialized calcium silicate-based material named Biodentine with physical improved properties compared to MTA in a clinical application. Two endodontic microsurgeries were performed by using specific armamentarium（microsurgical instrumentation, ultrasonic tips） under high-power magnification with an operatory microscope. Biodentine was used as a root-end filling in order to seal the root canal system. The two cases were considered completely healed at 1 year and were followed for one more year. The 2-year follow-up consolidated the previous observation with absence of clinical symptoms and radiographic evidence of regeneration of the periapical tissues.展开更多
The success rate of apexification is primarily determined by multiple factors,including the material used,the size of the open apex compared to the length of the root,and the technique used in each case.The main objec...The success rate of apexification is primarily determined by multiple factors,including the material used,the size of the open apex compared to the length of the root,and the technique used in each case.The main objective of this review was to provide an update on the present management of open apex to identify factors and circumstances that may influence the success of apexification using different materials and techniques.Future research on apexification should focus on how to treat open apices with wide periapical lesions without surgery.Previously,the predictability of these parameters with non-surgical procedures was uncertain,but now,with the use of a dental operating microscope,it has become more predictable.Another reason could be that extra visits are no longer required due to major advances in the armamentarium and materials used for apexification.展开更多
目的探讨不同生物活性盖髓材料在年轻恒牙不可复性牙髓炎活髓切断术中的临床效果。方法选取2021-12至2022-12在秦皇岛市海港医院口腔科就诊,诊断为不可复性牙髓炎的年轻恒牙患儿126例(142颗患牙),按就诊顺序编号,采用随机数字表法分为3...目的探讨不同生物活性盖髓材料在年轻恒牙不可复性牙髓炎活髓切断术中的临床效果。方法选取2021-12至2022-12在秦皇岛市海港医院口腔科就诊,诊断为不可复性牙髓炎的年轻恒牙患儿126例(142颗患牙),按就诊顺序编号,采用随机数字表法分为3组:A组(42例,患牙49颗)应用iRoot BP Plus,B组(42例,患牙46颗)应用Biodentine,C组(42例,患牙47颗)应用三氧化矿物凝聚体(MTA)进行活髓切断治疗。于术后24 h、72 h采用视觉模拟评分法(VAS)评价各组患儿的疼痛程度,术后3、6、12个月随访比较3组患牙的治疗成功率、牙本质桥形成率、牙齿变色率及牙龈健康状况,对各组疗效进行评价。结果术后24h、72h各组患儿均未出现中、重度疼痛,24 h轻度疼痛发生率各组差异无统计学意义(P>0.05);同时段内各组间成功率、牙本质桥形成率与牙龈健康状况的差异均无统计学意义(P>0.05);各组牙齿变色率分别为3个月:A组(0%),B组(2.22%),C组(45.65%);6个月:A组(2.17%),B组(2.44%),C组(54.55%);12个月:A组(4.55%),B组(4.88%),C组(69.77%),A组与B组的差异无统计学意义(P>0.05),A组与C组、B组与C组的差异有统计学意义(P<0.05)。结论三种不同生物活性盖髓材料用于年轻恒牙不可复性牙髓炎活髓切断治疗中术后疼痛发生率低、程度轻,临床效果满意且无显著性差异,应用iRoot BP Plus、Biodentine的牙齿变色率显著低于MTA。展开更多
背景:研究显示,牙髓治疗后牙齿尤其是磨牙牙齿的存留率明显低于活髓牙,失牙危险比为7.4∶1。随着组织再生观念的进步与生物医用材料的发展,人们开始寻求提高牙齿存留率的新型牙髓治疗方式。目的:文章就各种生物材料的临床效果、应用现...背景:研究显示,牙髓治疗后牙齿尤其是磨牙牙齿的存留率明显低于活髓牙,失牙危险比为7.4∶1。随着组织再生观念的进步与生物医用材料的发展,人们开始寻求提高牙齿存留率的新型牙髓治疗方式。目的:文章就各种生物材料的临床效果、应用现状及研究前景做一综述,以帮助临床医师在活髓保存中选择合适的生物材料。方法:以中文检索词“活髓保存,氢氧化钙,MTA,iRoot BP Plus,Biodentine,TheraCal LC,BioAggregate”检索CNKI、万方数据库;以英文检索词“vital pulp therapy,MTA,iRoot BP Plus,Biodentine,TheraCal LC,BioAggregate”检索PubMed数据库,检索时间范围重点为2011年1月至2021年11月。通过阅读文献题目、摘要及全文筛选,最后纳入56篇文献进行综述。结果与结论:①在微创治疗中,为改善预后并且提高牙齿的保存期,除了追求剩余牙体硬组织的完整性外,应尽量保留健康的牙髓组织,活髓保存不仅对根尖未发育完善的年轻恒牙具有重要意义,对于根尖发育完善的恒牙也意义重大;②氢氧化钙是临床上应用时间最长的盖髓剂,其效果稳定、价格低廉,但无法严密封闭牙髓,所诱导形成的牙本质桥存在隧道样缺损,预后不佳;③三氧化矿物凝聚体的生物相容性优于氢氧化钙,封闭性好,能有效控制炎症,同时也存在着价格高、凝固时间长、可能导致牙冠变色等问题;④近年来,iRoot BP Plus、Biodentine、TheraCal LC、BioAggregate等新型生物材料也逐渐走入临床视野,展现出了光明的前景,仍有待于进一步的临床研究。然而无论使用何种盖髓材料,适应证的准确选择是成功保留健康牙髓组织的关键。展开更多
文摘背景:生物活性物质Biodentine具有良好的抗压强度、粘接强度及较少的微渗漏等诸多优点,已被成功应用于多种临床适应证,然而有关Biodentine是否可促进成骨细胞成骨的研究罕见。目的:研究不同浓度Biodentine对人骨肉瘤细胞MG-63增殖及成骨作用的影响。方法:制备不同浓度梯度(1、1/2、1/4、1/8和1/16)的Biodentine浸提液。将人骨肉瘤细胞MG-63分6组培养,分别加入MEM培养液(对照组)及5种浓度的Biodentine浸提液,采用CCK-8法检测培养第1,3,5,7天的细胞增殖,筛选Biodentine浸提液最佳浓度。将人骨肉瘤细胞MG-63分2组培养,分别加入MEM培养液(空白对照组)及最佳浓度的Biodentine材料浸提液(实验组),培养第1,3,5,7天,采用Real-time PCR法检测细胞中成骨因子Runx2 m RNA表达;培养第10,14天行茜素红染色,观察细胞钙化结节形成情况。结果与结论:(1)培养第1,3天时,不同浓度Biodentine材料浸提液组活细胞数量与对照组相比无差异;培养第5天,1浓度材料浸提液组活细胞数量明显低于对照组(P<0.05),1/2、1/4、1/8浓度材料浸提液组活细胞数量与对照组比较无差异,1/16浓度材料浸提液组活细胞数量明显高于对照组(P<0.05),因此实验选择1/16浓度材料浸提液进行后续实验;(2)实验组培养第1,3,5,7天的Runx2 m RNA表达量分别为空白对照组的1.14,5.29,1.08,2.11倍(P均<0.05);(3)培养第10天时,实验组与空白对照组均未见矿化结节;培养第14天,两组均可见矿化结节,实验组的面积更大、颜色更深;(4)结果表明在一定浓度下,Biodentine可促进人骨肉瘤细胞MG-63增殖及成骨活性。
文摘Mineral trioxide aggregate（MTA） is considered at the present time as the gold standard for root-end filling in endodontic surgery.However, this biocompatible material presents several drawbacks such as a long setting time and handling difficulties. The aim of this article is to present a new commercialized calcium silicate-based material named Biodentine with physical improved properties compared to MTA in a clinical application. Two endodontic microsurgeries were performed by using specific armamentarium（microsurgical instrumentation, ultrasonic tips） under high-power magnification with an operatory microscope. Biodentine was used as a root-end filling in order to seal the root canal system. The two cases were considered completely healed at 1 year and were followed for one more year. The 2-year follow-up consolidated the previous observation with absence of clinical symptoms and radiographic evidence of regeneration of the periapical tissues.
文摘The success rate of apexification is primarily determined by multiple factors,including the material used,the size of the open apex compared to the length of the root,and the technique used in each case.The main objective of this review was to provide an update on the present management of open apex to identify factors and circumstances that may influence the success of apexification using different materials and techniques.Future research on apexification should focus on how to treat open apices with wide periapical lesions without surgery.Previously,the predictability of these parameters with non-surgical procedures was uncertain,but now,with the use of a dental operating microscope,it has become more predictable.Another reason could be that extra visits are no longer required due to major advances in the armamentarium and materials used for apexification.
文摘目的探讨不同生物活性盖髓材料在年轻恒牙不可复性牙髓炎活髓切断术中的临床效果。方法选取2021-12至2022-12在秦皇岛市海港医院口腔科就诊,诊断为不可复性牙髓炎的年轻恒牙患儿126例(142颗患牙),按就诊顺序编号,采用随机数字表法分为3组:A组(42例,患牙49颗)应用iRoot BP Plus,B组(42例,患牙46颗)应用Biodentine,C组(42例,患牙47颗)应用三氧化矿物凝聚体(MTA)进行活髓切断治疗。于术后24 h、72 h采用视觉模拟评分法(VAS)评价各组患儿的疼痛程度,术后3、6、12个月随访比较3组患牙的治疗成功率、牙本质桥形成率、牙齿变色率及牙龈健康状况,对各组疗效进行评价。结果术后24h、72h各组患儿均未出现中、重度疼痛,24 h轻度疼痛发生率各组差异无统计学意义(P>0.05);同时段内各组间成功率、牙本质桥形成率与牙龈健康状况的差异均无统计学意义(P>0.05);各组牙齿变色率分别为3个月:A组(0%),B组(2.22%),C组(45.65%);6个月:A组(2.17%),B组(2.44%),C组(54.55%);12个月:A组(4.55%),B组(4.88%),C组(69.77%),A组与B组的差异无统计学意义(P>0.05),A组与C组、B组与C组的差异有统计学意义(P<0.05)。结论三种不同生物活性盖髓材料用于年轻恒牙不可复性牙髓炎活髓切断治疗中术后疼痛发生率低、程度轻,临床效果满意且无显著性差异,应用iRoot BP Plus、Biodentine的牙齿变色率显著低于MTA。
文摘背景:研究显示,牙髓治疗后牙齿尤其是磨牙牙齿的存留率明显低于活髓牙,失牙危险比为7.4∶1。随着组织再生观念的进步与生物医用材料的发展,人们开始寻求提高牙齿存留率的新型牙髓治疗方式。目的:文章就各种生物材料的临床效果、应用现状及研究前景做一综述,以帮助临床医师在活髓保存中选择合适的生物材料。方法:以中文检索词“活髓保存,氢氧化钙,MTA,iRoot BP Plus,Biodentine,TheraCal LC,BioAggregate”检索CNKI、万方数据库;以英文检索词“vital pulp therapy,MTA,iRoot BP Plus,Biodentine,TheraCal LC,BioAggregate”检索PubMed数据库,检索时间范围重点为2011年1月至2021年11月。通过阅读文献题目、摘要及全文筛选,最后纳入56篇文献进行综述。结果与结论:①在微创治疗中,为改善预后并且提高牙齿的保存期,除了追求剩余牙体硬组织的完整性外,应尽量保留健康的牙髓组织,活髓保存不仅对根尖未发育完善的年轻恒牙具有重要意义,对于根尖发育完善的恒牙也意义重大;②氢氧化钙是临床上应用时间最长的盖髓剂,其效果稳定、价格低廉,但无法严密封闭牙髓,所诱导形成的牙本质桥存在隧道样缺损,预后不佳;③三氧化矿物凝聚体的生物相容性优于氢氧化钙,封闭性好,能有效控制炎症,同时也存在着价格高、凝固时间长、可能导致牙冠变色等问题;④近年来,iRoot BP Plus、Biodentine、TheraCal LC、BioAggregate等新型生物材料也逐渐走入临床视野,展现出了光明的前景,仍有待于进一步的临床研究。然而无论使用何种盖髓材料,适应证的准确选择是成功保留健康牙髓组织的关键。
