One-step apexification using mineral trioxide aggregate(MTA) has been reported as an alternative treatment modality with more benefits than the use of long-term calcium hydroxide for teeth with open apex.However,ortho...One-step apexification using mineral trioxide aggregate(MTA) has been reported as an alternative treatment modality with more benefits than the use of long-term calcium hydroxide for teeth with open apex.However,orthograde placement of MTA is a challenging procedure in terms of length control.This case series describes the sequence of events following apical extrusion of MTA into the periapical area during a one-step apexification procedure for maxillary central incisor with an infected immature apex.Detailed long-term observation revealed complete resolution of the periapical radiolucent lesion around the extruded MTA.These cases revealed that direct contact with MTA had no negative effects on healing of the periapical tissues.However,intentional MTA overfilling into the periapical lesion is not to be recommended.展开更多
The present investigation assessed the effect of acid etching on marginal adaptation of white- and gray-colored mineral trioxide aggregate (MTA) to apical dentin using microcomputed tomography (micro-CT) and scann...The present investigation assessed the effect of acid etching on marginal adaptation of white- and gray-colored mineral trioxide aggregate (MTA) to apical dentin using microcomputed tomography (micro-CT) and scanning electron microscopy (SEM). Sixty-four extracted single-rooted human maxillary teeth were used. Following root-end resection and apical preparation, the teeth were equally divided into four groups according to the following root end filling materials: (i) white-colored MTA (WMTA), (ii) etched WMTA (EWMTA), (iii) gray-colored MTA (GMTA) and (iv) etched GMTA (EGMTA). After 48 h, the interface between root-end filling materials and the dentinal walls was assessed using micro-CT and SEM. Data were statistically analyzed using the KruskaI-Wallis and Dunn tests. Micro-CT analysis revealed gap volumes between the apical cavity dentin walls and EGMTA, GMTA, EWMTA and WMTA of (0.007 1±0.004) mm3, (0.053±0.002) mm3, (0.003 6±0.001) mm3 and (0.005 9±0.002) mm3 respectively. SEM analysis revealed gap sizes for EGMTA, WMTA, EWMTA and GMTA to be (492.3±13.8) μm, (594.5±17.12)μm, (543.1±15.33) μm and (910.7±26.2)μm respectively. A significant difference in gap size between root end preparations filled with GMTA and EGMTA was found (P〈O.05). No significance difference in gap size between WMTA and EWMTA were found in either SEM or micro-CT analysis. In conclusion, pre-etching of apical dentin can provide a better seal for GMTA but not for WMTA.展开更多
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
目的比较iRoot BP Plus与三氧化矿物聚合体(MTA)在恒牙深龋直接盖髓术中的临床疗效。方法选取82例单颗恒牙深龋露髓患者为研究对象,根据使用盖髓剂不同分为对照组和观察组,各41例。观察组采用iRoot BP Plus直接盖髓,对照组采用MTA直接...目的比较iRoot BP Plus与三氧化矿物聚合体(MTA)在恒牙深龋直接盖髓术中的临床疗效。方法选取82例单颗恒牙深龋露髓患者为研究对象,根据使用盖髓剂不同分为对照组和观察组,各41例。观察组采用iRoot BP Plus直接盖髓,对照组采用MTA直接盖髓。比较两组术后不同时间点治疗成功率,直接盖髓操作时间,钙化桥形成情况及牙冠变色发生情况。结果所有患者术后均连续随访12个月,无失访病例。观察组术后3、6、12个月治疗成功率分别为97.56%、97.56%、95.12%,对照组为95.12%、92.68%、92.68%;两组术后3、6、12个月治疗成功率比较差异均无统计学意义(P>0.05)。观察组患者直接盖髓操作时间为(2.58±0.40)min,对照组为(4.42±0.56)min;观察组患者直接盖髓操作时间短于对照组,差异有统计学意义(t=17.120,P=0.000<0.05)。术后连续随访12个月,观察组钙化桥总形成率为95.12%,对照组为90.24%,两组钙化桥总形成率比较差异无统计学意义(P>0.05);观察组牙冠变色率为0,低于对照组的56.10%,差异有统计学意义(P<0.05)。结论iRoot BP Plus与MTA应用于恒牙深龋直接盖髓术中均具有显著的临床疗效,能提高治疗成功率,但iRoot BP Plus在减少操作时间、避免牙冠变色方面更具优势,是临床上更为理想的直接盖髓剂。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
目的 探讨生物陶瓷材料iRoot BP Plus和三氧化矿物聚合体(mineral trioxide aggregate,MTA)应用于成熟恒牙直接盖髓术的效果,为临床提供参考。方法 因深龋或可复性牙髓炎去腐后露髓的成熟恒牙75颗,患者74例,随机分为两组,每组37例患者,...目的 探讨生物陶瓷材料iRoot BP Plus和三氧化矿物聚合体(mineral trioxide aggregate,MTA)应用于成熟恒牙直接盖髓术的效果,为临床提供参考。方法 因深龋或可复性牙髓炎去腐后露髓的成熟恒牙75颗,患者74例,随机分为两组,每组37例患者,试验组使用iRoot BP Plus(iRoot组),对照组使用MTA(MTA组)作为盖髓剂。术后1、3、6、12个月进行临床评价及影像学分析。比较两组治疗成功率,并分析性别、年龄、牙位、洞型、穿髓孔数目、大小等因素对直接盖髓术疗效的影响。结果 12个月后完成复诊60例患者61颗患牙(i Root组30例患者31颗,MTA组30例患者30颗),iRoot组的成功率90.3%,MTA组成功率为90.0%,两组成功率差异无统计学意义(P>0.05),性别、年龄、牙位、洞型、穿髓孔数目、大小等因素对两组疗效的影响均无统计学意义(P>0.05)。结论 iRoot BP Plus与MTA用于因龋露髓成熟恒牙直接盖髓术效果均良好,但iRoot操作较为简便。展开更多
目的:探讨根管充填及修复材料(iRoot BP plus)和三氧化物凝聚体(MTA)根管修复材料用于牙髓血运重建术治疗年轻恒牙根尖感染的临床疗效。方法:选取医院口腔科收治的40例年轻恒牙根尖感染患者,按照随机数表法将其分为观察组和对照组,每组2...目的:探讨根管充填及修复材料(iRoot BP plus)和三氧化物凝聚体(MTA)根管修复材料用于牙髓血运重建术治疗年轻恒牙根尖感染的临床疗效。方法:选取医院口腔科收治的40例年轻恒牙根尖感染患者,按照随机数表法将其分为观察组和对照组,每组20例。所有患者均运用牙髓血运重建术进行治疗,其中观察组选用iRoot BP plus材料封闭根管上端,对照组选用MTA材料进行根管上端的封闭。比较两组患者的临床疗效、治疗周期、就诊次数、咀嚼恢复时间及根尖感染痊愈时间,比较两组患者的根管壁厚度、牙根长度以及患者对治疗的满意度。结果:牙髓血运重建术后,观察组治疗总有效率为95%,显著高于对照组的60%,差异有统计学意义(χ^(2)=8.326,P<0.05)。观察组与对照组相比,治疗周期、就诊次数、咀嚼恢复时间和根尖痊愈时间均显著缩短,差异具有统计学意义(t=12.492,t=10.424,t=6.524,t=11.907;P<0.05)。治疗后观察组患者的牙冠根长度显著长于对照组,根管壁厚度优于对照组,差异有统计学意义(t=8.742,t=7.048;P<0.05)。观察组患者咬合度、牙齿色泽、咀嚼能力及整体美观度4项满意度评分均显著高于对照组,差异有统计学意义(t=5.437,t=5.093,t=7.591,t=6.852;P<0.05)。结论:在运用牙髓血运重建术治疗年轻恒牙根尖感染时,iRoot BP plus材料较MTA材料更具有优势,可更有效提高患者的临床疗效和治疗满意度。展开更多
目的比较生物陶瓷材料iRoot BP Plus与三氧化矿物聚合物(MTA)用作牙齿活髓切断术盖髓剂的疗效差异。方法检索PubMed、Web of Science、Cochrane Library、CNKI、万方数据库和维普数据库中收录的iRoot BP Plus与MTA用于牙齿活髓切断术治...目的比较生物陶瓷材料iRoot BP Plus与三氧化矿物聚合物(MTA)用作牙齿活髓切断术盖髓剂的疗效差异。方法检索PubMed、Web of Science、Cochrane Library、CNKI、万方数据库和维普数据库中收录的iRoot BP Plus与MTA用于牙齿活髓切断术治疗的随机对照试验(RCT),检索时间为数据库建库至2023年3月。由2名成员严格按照纳入和排除标准独立进行筛选,结局指标包括临床成功率、盖髓操作时间、牙本质桥形成率及牙变色率。利用Cochrane偏倚风险评价工具进行文献质量评价,使用Stata 15.0软件对被纳入的文献进行Meta分析。结果最终纳入18篇RCT,Meta分析结果显示:1)术后3、6、12个月iRoot BP Plus组与MTA组之间临床成功率的差异无统计学意义(P>0.05);2)iRoot BP Plus组的盖髓操作时间明显小于MTA组(P<0.05);3)术后3个月,iRoot BP Plus组的牙本质桥形成率高于MTA组(P<0.05);4)末次随访iRoot BP Plus组牙变色率显著低于MTA组(P<0.05)。结论iRoot BP Plus用于牙齿活髓切断术的临床成功率与MTA相近,但较MTA盖髓操作时间更短,发生牙变色的概率更低。展开更多
目的:比较三氧矿化物凝聚体(MTA)和生物陶瓷(iRoot BP Plus)对乳牙深龋露髓后行活髓切断术的疗效影响。方法:纳入乳牙深龋露髓的患牙126颗,随机平均分为A组和B组(n=63)。A组用MTA覆盖活髓切断术牙髓组织断面,B组则使用iRoot BP Plus覆盖...目的:比较三氧矿化物凝聚体(MTA)和生物陶瓷(iRoot BP Plus)对乳牙深龋露髓后行活髓切断术的疗效影响。方法:纳入乳牙深龋露髓的患牙126颗,随机平均分为A组和B组(n=63)。A组用MTA覆盖活髓切断术牙髓组织断面,B组则使用iRoot BP Plus覆盖;比较2种材料的临床疗效,术后1、3、6、12、18月观察患牙的牙齿变色、牙髓、牙周膜及根分叉病变情况、根管内钙化情况以及根管的内外吸收情况,术后无任何不适症状视为治疗有效。结果:A组和B组成功率分别为96.8%和98.4%(P>0.05);牙齿变色率分别为100%和0%(P<0.05)。结论:用MTA和iRoot BP Plus作为乳牙活髓切断术盖髓剂,都能很好的保留乳牙根髓,但是iRoot BP Plus有更好的临床操作性并能避免乳牙出现牙体变色。展开更多
基金supported by the National Research Foundation(NRF) of Koreafunded by the Ministry of Education,Science and Technology(MEST) (No.2011-0014231,Dr.Seok-Wood Chang),Korea
文摘One-step apexification using mineral trioxide aggregate(MTA) has been reported as an alternative treatment modality with more benefits than the use of long-term calcium hydroxide for teeth with open apex.However,orthograde placement of MTA is a challenging procedure in terms of length control.This case series describes the sequence of events following apical extrusion of MTA into the periapical area during a one-step apexification procedure for maxillary central incisor with an infected immature apex.Detailed long-term observation revealed complete resolution of the periapical radiolucent lesion around the extruded MTA.These cases revealed that direct contact with MTA had no negative effects on healing of the periapical tissues.However,intentional MTA overfilling into the periapical lesion is not to be recommended.
文摘The present investigation assessed the effect of acid etching on marginal adaptation of white- and gray-colored mineral trioxide aggregate (MTA) to apical dentin using microcomputed tomography (micro-CT) and scanning electron microscopy (SEM). Sixty-four extracted single-rooted human maxillary teeth were used. Following root-end resection and apical preparation, the teeth were equally divided into four groups according to the following root end filling materials: (i) white-colored MTA (WMTA), (ii) etched WMTA (EWMTA), (iii) gray-colored MTA (GMTA) and (iv) etched GMTA (EGMTA). After 48 h, the interface between root-end filling materials and the dentinal walls was assessed using micro-CT and SEM. Data were statistically analyzed using the KruskaI-Wallis and Dunn tests. Micro-CT analysis revealed gap volumes between the apical cavity dentin walls and EGMTA, GMTA, EWMTA and WMTA of (0.007 1±0.004) mm3, (0.053±0.002) mm3, (0.003 6±0.001) mm3 and (0.005 9±0.002) mm3 respectively. SEM analysis revealed gap sizes for EGMTA, WMTA, EWMTA and GMTA to be (492.3±13.8) μm, (594.5±17.12)μm, (543.1±15.33) μm and (910.7±26.2)μm respectively. A significant difference in gap size between root end preparations filled with GMTA and EGMTA was found (P〈O.05). No significance difference in gap size between WMTA and EWMTA were found in either SEM or micro-CT analysis. In conclusion, pre-etching of apical dentin can provide a better seal for GMTA but not for WMTA.
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.
文摘目的比较iRoot BP Plus与三氧化矿物聚合体(MTA)在恒牙深龋直接盖髓术中的临床疗效。方法选取82例单颗恒牙深龋露髓患者为研究对象,根据使用盖髓剂不同分为对照组和观察组,各41例。观察组采用iRoot BP Plus直接盖髓,对照组采用MTA直接盖髓。比较两组术后不同时间点治疗成功率,直接盖髓操作时间,钙化桥形成情况及牙冠变色发生情况。结果所有患者术后均连续随访12个月,无失访病例。观察组术后3、6、12个月治疗成功率分别为97.56%、97.56%、95.12%,对照组为95.12%、92.68%、92.68%;两组术后3、6、12个月治疗成功率比较差异均无统计学意义(P>0.05)。观察组患者直接盖髓操作时间为(2.58±0.40)min,对照组为(4.42±0.56)min;观察组患者直接盖髓操作时间短于对照组,差异有统计学意义(t=17.120,P=0.000<0.05)。术后连续随访12个月,观察组钙化桥总形成率为95.12%,对照组为90.24%,两组钙化桥总形成率比较差异无统计学意义(P>0.05);观察组牙冠变色率为0,低于对照组的56.10%,差异有统计学意义(P<0.05)。结论iRoot BP Plus与MTA应用于恒牙深龋直接盖髓术中均具有显著的临床疗效,能提高治疗成功率,但iRoot BP Plus在减少操作时间、避免牙冠变色方面更具优势,是临床上更为理想的直接盖髓剂。
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。
文摘目的 探讨生物陶瓷材料iRoot BP Plus和三氧化矿物聚合体(mineral trioxide aggregate,MTA)应用于成熟恒牙直接盖髓术的效果,为临床提供参考。方法 因深龋或可复性牙髓炎去腐后露髓的成熟恒牙75颗,患者74例,随机分为两组,每组37例患者,试验组使用iRoot BP Plus(iRoot组),对照组使用MTA(MTA组)作为盖髓剂。术后1、3、6、12个月进行临床评价及影像学分析。比较两组治疗成功率,并分析性别、年龄、牙位、洞型、穿髓孔数目、大小等因素对直接盖髓术疗效的影响。结果 12个月后完成复诊60例患者61颗患牙(i Root组30例患者31颗,MTA组30例患者30颗),iRoot组的成功率90.3%,MTA组成功率为90.0%,两组成功率差异无统计学意义(P>0.05),性别、年龄、牙位、洞型、穿髓孔数目、大小等因素对两组疗效的影响均无统计学意义(P>0.05)。结论 iRoot BP Plus与MTA用于因龋露髓成熟恒牙直接盖髓术效果均良好,但iRoot操作较为简便。
基金2022年度内蒙古自治区卫生健康科技计划(202202170)“iRoot BP plus和MTA用于牙髓血运重建术在治疗年轻恒牙根尖感染的临床疗效对比”。
文摘目的:探讨根管充填及修复材料(iRoot BP plus)和三氧化物凝聚体(MTA)根管修复材料用于牙髓血运重建术治疗年轻恒牙根尖感染的临床疗效。方法:选取医院口腔科收治的40例年轻恒牙根尖感染患者,按照随机数表法将其分为观察组和对照组,每组20例。所有患者均运用牙髓血运重建术进行治疗,其中观察组选用iRoot BP plus材料封闭根管上端,对照组选用MTA材料进行根管上端的封闭。比较两组患者的临床疗效、治疗周期、就诊次数、咀嚼恢复时间及根尖感染痊愈时间,比较两组患者的根管壁厚度、牙根长度以及患者对治疗的满意度。结果:牙髓血运重建术后,观察组治疗总有效率为95%,显著高于对照组的60%,差异有统计学意义(χ^(2)=8.326,P<0.05)。观察组与对照组相比,治疗周期、就诊次数、咀嚼恢复时间和根尖痊愈时间均显著缩短,差异具有统计学意义(t=12.492,t=10.424,t=6.524,t=11.907;P<0.05)。治疗后观察组患者的牙冠根长度显著长于对照组,根管壁厚度优于对照组,差异有统计学意义(t=8.742,t=7.048;P<0.05)。观察组患者咬合度、牙齿色泽、咀嚼能力及整体美观度4项满意度评分均显著高于对照组,差异有统计学意义(t=5.437,t=5.093,t=7.591,t=6.852;P<0.05)。结论:在运用牙髓血运重建术治疗年轻恒牙根尖感染时,iRoot BP plus材料较MTA材料更具有优势,可更有效提高患者的临床疗效和治疗满意度。
文摘目的比较生物陶瓷材料iRoot BP Plus与三氧化矿物聚合物(MTA)用作牙齿活髓切断术盖髓剂的疗效差异。方法检索PubMed、Web of Science、Cochrane Library、CNKI、万方数据库和维普数据库中收录的iRoot BP Plus与MTA用于牙齿活髓切断术治疗的随机对照试验(RCT),检索时间为数据库建库至2023年3月。由2名成员严格按照纳入和排除标准独立进行筛选,结局指标包括临床成功率、盖髓操作时间、牙本质桥形成率及牙变色率。利用Cochrane偏倚风险评价工具进行文献质量评价,使用Stata 15.0软件对被纳入的文献进行Meta分析。结果最终纳入18篇RCT,Meta分析结果显示:1)术后3、6、12个月iRoot BP Plus组与MTA组之间临床成功率的差异无统计学意义(P>0.05);2)iRoot BP Plus组的盖髓操作时间明显小于MTA组(P<0.05);3)术后3个月,iRoot BP Plus组的牙本质桥形成率高于MTA组(P<0.05);4)末次随访iRoot BP Plus组牙变色率显著低于MTA组(P<0.05)。结论iRoot BP Plus用于牙齿活髓切断术的临床成功率与MTA相近,但较MTA盖髓操作时间更短,发生牙变色的概率更低。
文摘目的:比较三氧矿化物凝聚体(MTA)和生物陶瓷(iRoot BP Plus)对乳牙深龋露髓后行活髓切断术的疗效影响。方法:纳入乳牙深龋露髓的患牙126颗,随机平均分为A组和B组(n=63)。A组用MTA覆盖活髓切断术牙髓组织断面,B组则使用iRoot BP Plus覆盖;比较2种材料的临床疗效,术后1、3、6、12、18月观察患牙的牙齿变色、牙髓、牙周膜及根分叉病变情况、根管内钙化情况以及根管的内外吸收情况,术后无任何不适症状视为治疗有效。结果:A组和B组成功率分别为96.8%和98.4%(P>0.05);牙齿变色率分别为100%和0%(P<0.05)。结论:用MTA和iRoot BP Plus作为乳牙活髓切断术盖髓剂,都能很好的保留乳牙根髓,但是iRoot BP Plus有更好的临床操作性并能避免乳牙出现牙体变色。