目的:研究三氧化矿物凝聚体(MTA)、iRoot BP Plus(iRooT)以及氢氧化钙(Ca(OH)2)三种材料在年轻恒牙活髓切断术中的临床疗效。方法:将60例需要接受年轻恒牙活髓切断术的患者(60颗患牙)按照使用材料不同随机分为三组:MTA组、iRooT组和Ca(O...目的:研究三氧化矿物凝聚体(MTA)、iRoot BP Plus(iRooT)以及氢氧化钙(Ca(OH)2)三种材料在年轻恒牙活髓切断术中的临床疗效。方法:将60例需要接受年轻恒牙活髓切断术的患者(60颗患牙)按照使用材料不同随机分为三组:MTA组、iRooT组和Ca(OH)2组,每组20例(20颗患牙),比较三组患者术后3个月和6个月手术成功率、牙本质桥形成和牙齿变色发生率、牙根管壁厚度、牙齿功能和美观度、以及血清基质金属蛋白酶-3(MMP-3)和白细胞介素-8(IL-8)水平。结果:(1)三组患者仅术后6个月临床治疗成功率存在显著差异(P<0.05);(2)Ca(OH)2组术后牙本质桥形成率显著低于其他两组(P<0.05),而牙齿变色发生率显著低于MTA组(P<0.05)和显著高于iRooT组(P<0.05)。(3)三组患者治疗后牙根管壁厚度均较治疗前显著增加,且治疗后Ca(OH)2组患牙根管壁厚度增加显著低于MTA组和iRooT组(P<0.05)。(4)Ca(OH)2组患者术后6个月牙齿舒适功能、固定功能和咀嚼功能评分均显著低于MTA组和iRooT组(P<0.05),而牙齿美观度评分显著低于iRooT组(P<0.05)和显著高于MTA组(P<0.05)。(5)三组患者术后6个月血清MMP-3和IL-8均显著低于术前(P<0.05),并且MTA组患者血清MMP-3和IL-8水平显著高于iRooT组(P<0.05)和显著低于CaOH组(P<0.05)。结论:iRoot BP Plus和MTA材料应用于年轻恒牙活髓切断术均具有较高的远期成功率,但MTA材料远期牙齿变色率较高因而影响牙齿美观度。展开更多
Background Squamous cell carcinoma (SCC) of the tongue maxillofacial region. To provide clinical evidence for selective analyzing the characteristics and correlation of factors of occult with SCC of the tongue. is o...Background Squamous cell carcinoma (SCC) of the tongue maxillofacial region. To provide clinical evidence for selective analyzing the characteristics and correlation of factors of occult with SCC of the tongue. is one of the most common cancers in the oral and neck dissection in management of cN0 patients by cervical lymph node metastases (OCLNM) in patients Methods From 2002 to 2006, 100 consecutive patients with SCC of the tongue were reviewed by analyzing the characteristics of OCLNM, diameter of the tumor, T classifications, depth of invasion, forms of growth, pathological grade and degree of differentiation. Results The rate of OCLNM in 100 patients with SCC of the tongue was 22%. The most common region with OCLNM was level Ⅱ in the ipsilateral neck, followed by levels Ⅰ and Ⅲ. There were 51.61% (16/31) of OCLNM in level Ⅱ and 87.10% (27/31) of OCLNM in levels Ⅰ-Ⅲ. There was no significant correlation between the diameter of tumor and OCLNM (P 〉0.05). OCLNM was statistically significantly correlated with the depth of invasion, forms of growth, pathological grade and degree of differentiation (P 〈0.05). The rate of occult metastases increased with the increased pathological grade, the decreased degree of differentiation and the increased depth of invasion. Conclusions The most common regions with OCLNM in cN0 patients with SCC of the tongue were levels Ⅰ-Ⅲ in the ipsilateral neck. Supraomohyoid neck dissection should be the elective treatment to the neck in patients with cN0 SCC of the tongue by consideration of the clinical and pathological factors for the depth of invasion, forms of growth, pathological grade, and degree of differentiation.展开更多
文摘目的:研究三氧化矿物凝聚体(MTA)、iRoot BP Plus(iRooT)以及氢氧化钙(Ca(OH)2)三种材料在年轻恒牙活髓切断术中的临床疗效。方法:将60例需要接受年轻恒牙活髓切断术的患者(60颗患牙)按照使用材料不同随机分为三组:MTA组、iRooT组和Ca(OH)2组,每组20例(20颗患牙),比较三组患者术后3个月和6个月手术成功率、牙本质桥形成和牙齿变色发生率、牙根管壁厚度、牙齿功能和美观度、以及血清基质金属蛋白酶-3(MMP-3)和白细胞介素-8(IL-8)水平。结果:(1)三组患者仅术后6个月临床治疗成功率存在显著差异(P<0.05);(2)Ca(OH)2组术后牙本质桥形成率显著低于其他两组(P<0.05),而牙齿变色发生率显著低于MTA组(P<0.05)和显著高于iRooT组(P<0.05)。(3)三组患者治疗后牙根管壁厚度均较治疗前显著增加,且治疗后Ca(OH)2组患牙根管壁厚度增加显著低于MTA组和iRooT组(P<0.05)。(4)Ca(OH)2组患者术后6个月牙齿舒适功能、固定功能和咀嚼功能评分均显著低于MTA组和iRooT组(P<0.05),而牙齿美观度评分显著低于iRooT组(P<0.05)和显著高于MTA组(P<0.05)。(5)三组患者术后6个月血清MMP-3和IL-8均显著低于术前(P<0.05),并且MTA组患者血清MMP-3和IL-8水平显著高于iRooT组(P<0.05)和显著低于CaOH组(P<0.05)。结论:iRoot BP Plus和MTA材料应用于年轻恒牙活髓切断术均具有较高的远期成功率,但MTA材料远期牙齿变色率较高因而影响牙齿美观度。
文摘Background Squamous cell carcinoma (SCC) of the tongue maxillofacial region. To provide clinical evidence for selective analyzing the characteristics and correlation of factors of occult with SCC of the tongue. is one of the most common cancers in the oral and neck dissection in management of cN0 patients by cervical lymph node metastases (OCLNM) in patients Methods From 2002 to 2006, 100 consecutive patients with SCC of the tongue were reviewed by analyzing the characteristics of OCLNM, diameter of the tumor, T classifications, depth of invasion, forms of growth, pathological grade and degree of differentiation. Results The rate of OCLNM in 100 patients with SCC of the tongue was 22%. The most common region with OCLNM was level Ⅱ in the ipsilateral neck, followed by levels Ⅰ and Ⅲ. There were 51.61% (16/31) of OCLNM in level Ⅱ and 87.10% (27/31) of OCLNM in levels Ⅰ-Ⅲ. There was no significant correlation between the diameter of tumor and OCLNM (P 〉0.05). OCLNM was statistically significantly correlated with the depth of invasion, forms of growth, pathological grade and degree of differentiation (P 〈0.05). The rate of occult metastases increased with the increased pathological grade, the decreased degree of differentiation and the increased depth of invasion. Conclusions The most common regions with OCLNM in cN0 patients with SCC of the tongue were levels Ⅰ-Ⅲ in the ipsilateral neck. Supraomohyoid neck dissection should be the elective treatment to the neck in patients with cN0 SCC of the tongue by consideration of the clinical and pathological factors for the depth of invasion, forms of growth, pathological grade, and degree of differentiation.