氧化锌丁香油膏剂间接盖髓方法的探讨

间接盖髓术常用于治疗深龋引起的可复性牙髓炎以及鉴别慢性牙髓炎与可复性牙髓炎的诊断性治疗。本文旨在对氧化锌丁香油膏剂的两种间接盖髓方法进行比较研究。     

可见光固化氢氧化钙直接盖髓的临床观察

可见光固化氢氧化钙直接盖髓的临床观察广东省口腔医院（５１０２６０）张雄南海市人民医院黄庆荣氢氧化钙在口腔科被用于盖髓、保髓以来，大量的研究结果证明［１、２］：氢氧化钙具有一定的抗菌性，并可促进牙髓组织修复和牙本质桥的形成。长期以来，国内临床上用于盖髓...     

光固化氢氧化钙盖髓的临床应用研究

目的:比较光固化氢氧化钙盖髓和糊剂氢氧化钙盖髓在临床中的应用效果.方法:选择深龋近髓,去龋穿髓和意外穿髓患牙120个,随机分成2组,分别用光固化氢氧化钙及糊剂氢氧化钙盖髓,分层充填.治疗后3个月对两种方法的疗效进行评价.结果:对于深龋近髓或穿髓病例,两种治疗方法的成功率无显著性差异,但对于意外穿髓病例光固化氢氧化钙盖髓成功率显著高于糊剂氢氧化钙盖髓组.结论:光固化氢氧化钙对于意外穿髓的盖髓效果优于糊剂氢氧化钙盖髓.     

医用胶加氢氧化钙间接盖髓术的临床应用评估

氰基丙烯酸酯类医用胶经实验发现具有良好的生物学特性：对机体无毒，对组织无刺激，有一定的抑菌作用，对组织粘接力强，封闭性能好．这种材料在外科领域应用较多．而在牙体牙髓病研究中，多见于国外文献的报道，内容涉及牙本质过敏的治疗，牙齿表面发育沟的封闭，直接盖...     

氟化钙间接盖髓的临床研究

氟化钙间接盖髓的临床研究广州医学院第一附属医院（５１０１２０）吉建新动物实验表明［１］，氟化钙与牙髓组织具有良好的生物相容性，能促进牙髓组织形成修复性牙本质，具有临床应用价值。本文报告了使用氟化钙作为盖髓剂，治疗恒牙深龋的疗效。材料和方法１．病例：本...     

氢氧化钙樟脑酚糊剂盖髓的疗效分析

目的 研究用樟脑酚液调拌氢氧化钙成糊剂保护暴露牙髓。方法 对未受污染或新鲜露髓的恒牙,用樟脑酚液调拌氢氧化钙成糊剂直接盖髓、双层垫底、永久充填,观察1～2年的疗效。结果 160颗患牙除12颗失败外,其余148颗牙充填后咀嚼功能恢复,牙髓活力正常。结论 樟脑酚液调拌氢氧化钙的糊剂盖髓是一种保存活髓治疗的有效方法。     

钙乐(Calar)光固化氢氧化钙盖髓垫底材料的临床应用研究

目的：评价钙乐光固化氢氧化钙（VLC Calar）盖髓垫底的临床效果。方法：在临床选择深龋近髓（61牙），重度楔状缺损（33牙）、深龋穿髓（32牙）和意外穿髓（22牙），用VLC Calar进行垫底及盖髓，并以氢氧化钙制剂作为对照，其上用玻璃离子水门汀垫底，银汞合金或玻璃离子水门汀充填修复。术后半年复查。结果：应用VLC Calar后的成功率为：深龋近髓间接盖髓88.9%，重度楔状缺损间接盖髓95.5%，深龋穿髓直接盖髓52.2%，意外穿髓直接盖髓85.7%，成功率与对照材料无显著性差异，但VLC Calar黏附性好，易充填，能快速固化。结论：钙乐（Calar）光固化氢氧化钙用于间接盖髓及意外穿髓的盖髓效果较好，但用于深龋穿髓的直接盖髓效果较差。     

几种氢氧化钙盖髓剂Ca~(++)释放的比较研究

本文采用络合滴定法测定六种可固化氢氧化钙盖髓剂在蒸馏水中浸泡1天、2天,1周及2周后Ca~(++)释放情况。结果表明,六种盖髓剂在四个测定期均能测出Ca~(++)的释放,而且随着时间的延长其浓度均有增高的趋势。不同材料在各个测定期其Ca~(++)的释放量不同,据根Ca~(++)释放量可把材料分为3组,第1组为释放量多的,有VLC Dycal、VLC Calar和Calar;第2组为释放量中等水平,只有GD;第3组为Ca~(++)释放量较少,有VLC GD和Dycal。六种材料在2天测试期内Ca~(++)释放速度最快。另外,材料的固化方式对Ca~(++)释放量无相关性。     

间接盖髓及早期充填预防年轻恒牙冠折后牙髓炎的临床效果观察

目的　了解Timeline间接盖髓及早期充填修复对预防年轻恒牙外伤冠折后发生牙髓炎的临床作用。方法　试验对象为 10 2颗冠折、未露髓的年轻恒前牙。试验组 70颗 ,予Timeline氢氧化钙制剂间接盖髓后行光固化树脂修复 ;对照组 32颗 ,行简单调牙合及Glumas脱敏处理。结果　对照组牙髓炎的发生率达 4 3.7% ;而试验组牙髓炎发生率仅为 4 .3% ,两者比较差异有显著性意义 (P <0 .0 1)。结论　采用Timeline氢氧化钙制剂间接盖髓后光固化树脂修复的方法能有效地预防年轻恒牙外伤冠折后牙髓炎的发生     

医用胶加氢氧化钙直接盖髓2年临床疗效分析

医用胶加氢氧化钙直接盖髓２年临床疗效分析徐逸敏周建国马晓蓬吕玉麟宋培智临床应用发现，用医用胶加氢氧化钙治疗深龋的间接盖髓术１年的成功率为８５．３％。动物实验证明牙髓组织对上述盖髓剂的反应是成牙本质细胞层次减少，牙髓轻度至中度充血，无明显炎细胞浸润，牙...     

可乐丽菲露SE BOND用于直接盖髓术的组织学评价

目的:对可乐丽菲露SEBOND在人体用于直接盖髓术进行组织学评价。方法:选择24名志愿者共45颗健康人第三磨牙,41颗在牙合面制备Ⅰ类洞并在洞底作人工穿髓孔,然后分为2组,实验组以可乐丽菲露SEBOND盖髓,对照组以氢氧化钙盖髓。4颗作为空白对照。所有实验牙齿分别在盖髓后的7、30、90d后拔除并进行组织学检测。结果:实验组和对照组志愿者均未出现术后实验牙齿敏感症状。病理检测显示,在7d和30d的观察期内2组均有轻度到中度的炎性反应,但可乐丽菲露SEBOND组的炎性反应较氢氧化钙组轻,其组织学评价分级上的差别有统计学意义(P<0.05)。在90d的观察期内2组均无明显的炎性反应,而牙本质桥的形成在氢氧化钙组显著多于可乐丽菲露SEBOND组,氢氧化钙组7例标本中有6例标本有牙本质桥的形成,可乐丽菲露SEBOND组7例标本中有3例形成,其差别有统计学意义(P<0.05)。结论:可乐丽菲露SEBOND对牙髓的刺激性较小,但诱导牙本质形成的能力较氢氧化钙弱。     

A retrospective study of direct pulp capping with calcium hydroxide compounds

Abstract Direct pulp capping with calcium hydroxide compounds was performed on 510 human teeth. Pulp had been exposed as a result of cavity preparation in 70% of cases, and by removal of carious dentine in 15%. For the remaining 15% of the cases no information on the cause of exposure was available. The teeth were clinically and radiographically controlled 1, 3, 6 and 12 months after treatment and at the stopping date. 245 cases were available for clinical examination. Information on the remaining cases was obtained from the records. Using the life table method, the trial time was calculated for each case as the time from dale of treatment to the date of failure, the date of last contact or the stopping date. The data were analyzed according to cause of perforation, age of patient and type of tooth. Five-year survival was 82% No significant difference in survival was observed between non-carious and small carious exposures. Young teeth and molars showed a higher survival rate when the longer observation periods were considered.     

恒磨牙MTA直接盖髓术的临床疗效观察

目的：观察MTA在磨牙深龋意外露髓时直接盖髓术的临床疗效。方法：磨牙深龋意外露髓病例60例60个患牙,随机分为治疗组和对照组,分别用MTA和氢氧化钙进行直接盖髓术,治疗后1、3、6个月复查,观察盖髓术后临床成功率,并进行统计学分析。结果：治疗组的成功率为83．3％,明显高于对照组的成功率53．3％,组间比较差异有统计学意义（P＜0．05）。结论：MTA应用于磨牙深龋意外露髓直接盖髓术时临床疗效好。     

Newly developed resinous direct pulp capping agent containing calcium hydroxide (MTYA1-Ca)

AIM: The aim of this study was to evaluate a newly developed resin (MTYA1-Ca) for direct pulp capping. METHODOLOGY: The powder of MTY1-Ca is composed of 89.0% microfiller, 10.0% calcium hydroxide and 1.0% benzoyl peroxide and was mixed with liquid (67.5% triethyleneglycol dimethacrylate, 30.0% glyceryl methacrylate, 1.0% o-methacryloyl tyrosine amide, 1.0% dimethylaminoethylmethacrylate, and 0.5% camphorquinone). The shear bond, diametral tensile, bending and compressive strengths were measured. The alkaline activity of the elute dissolved from MTYA1-Ca was calculated. Cell viability by MTT assay and alkaline phosphatase (ALPase) activity were evaluated from dental pulp fibroblast reaction to the eluate dissolved from MTYA1-Ca. Histopathological studies of the response to exposed dental pulp of beagle dogs were completed with Dycal as a control. RESULTS: The physical properties of MTYA1-Ca were significantly superior to those of Dycal. It was impossible to measure these properties with Dycal because of poor physical properties. Both MTYA1-Ca and Dycal maintained high levels of alkaline activity (pH 10.96-12.20) over the 168-h duration of the study. Cell viability by MTT assay in the intact eluate of MTYA1-Ca was significantly higher than that of Dycal, whilst ALPase showed no difference between MTYA1-Ca and Dycal. A dentine bridge formed more slowly under MTYA1-Ca than under Dycal, but similar amounts had formed at 90 days. CONCLUSIONS: MTYA1-Ca has the potential to be used as a direct pulp capping material.     

MTA用于年轻恒前牙直接盖髓术的临床效果观察

目的 观察三氧化矿物聚合体(mineral trioxide aggregate,MTA)应用于年轻恒前牙意外露髓时直接盖髓术的临床效果,分析影响疗效的因素.方法 上、下颌恒前牙意外露髓病例64例,68颗患牙,随机分为试验组和对照组,分别用MTA和氢氧化钙进行直接盖髓,术后定期复查,观察24个月,对盖髓术后活髓保存成功率进行统计学分析.结果 试验组成功率为91.4%,对照组成功率为60.6%,2组比较差异具有统计学意义(P<0.05);性别、颌位、露髓原因、穿孔部位、直径等因素对疗效无影响(P>0.05).结论 MTA是较理想的直接盖髓材料.     

Histological evaluation of direct pulp capping with a self-etching adhesive and calcium hydroxide on human pulp tissue

Aim  To evaluate human pulp tissue response following direct pulp capping with a self-etching adhesive: Clearfil SE BOND (SB).
Methodology  Forty-five sound teeth from 20 subjects were used. Forty-one teeth had their pulp mechanically exposed at the base of a Class 1 cavity preparation and were divided into two groups: group 1, teeth were capped with SB ( n  = 21), and group 2, with calcium hydroxide cement (CH) ( n  = 20). Four teeth were maintained intact as an untreated control group. After 7, 30 and 90 days, respectively, 15 teeth were extracted and processed for light microscopic examination. Pulp healing and bacterial microleakage were assessed by haematoxylin and eosin, Masson trichrome and Brown and Brenn stain techniques. The data were analysed statistically by using the Mann–Whitney U test.
Results  After the 7-day observation period, the inflammatory reaction in the SB group was slight and significantly less severe than that of the CH group ( P  < 0.05). After the 30- and 90-day observation periods, the inflammatory reaction was slight in both groups, but specimens with dentine bridge formation in the SB group were significantly less common than those in the CH group ( P  < 0.05).
Conclusions  Clearfil SB had good biocompatibility with human pulp tissue, but its ability to induce reparative dentine was significantly lower than that of calcium hydroxide.     

年轻恒牙冠折后Ca(OH)_2护髓的疗效观察

目的：观察年轻恒牙釉—牙本质折断后,使用Ｃａ（ＯＨ）２制剂护髓的疗效及影响疗效的因素。方法：对１９８８～１９９５年间因釉—牙本质折断而在北医大口腔医院儿科就诊的５２例（６４个牙）患儿的病历资料进行了临床回顾性分析。其中４８例５９个牙使用Ｃａ（ＯＨ）２制剂进行间接盖髓术护髓。结果：使用Ｃａ（ＯＨ）２间接盖髓,其成功率为７８％;外伤牙的受伤程度及外伤后的就诊时间影响其疗效。结论：年轻恒牙釉—牙本质折断后,使用Ｃａ（ＯＨ）２做护髓剂成功率高     

Influence of age on the behavior of dental pulp of dog teeth after capping with an adhesive system or calcium hydroxide

Abstract  – This study evaluated histomorphologically the influence of chronological age of the dog on the dental pulp-healing process after capping with the All Bond 2 system or with calcium hydroxide paste. The animals were divided according to age into young and adult groups. Class 5-type cavities were prepared, and the pulp was submitted to an exposure of a diameter of 0.5 mm. The pulp of the teeth was then protected with the adhesive system or with a calcium hydroxide paste. Sixty days after treatment, the results obtained with the adhesive system in the young group were significantly better than those in the adult group. With calcium hydroxide, the results were similar for both groups. The pulp treated with calcium hydroxide exhibited a complete hard tissue bridge and a pulp without inflammatory reaction, a fact not observed when the adhesive system was used. In conclusion, the chronological age of the pulp influenced the comparative results only for the adhesive system ( P  = 0.1), and the total results were better with calcium hydroxide than with the All Bond 2 system ( P  = 0.01).     

Direct pulp capping: a review

Abstract The healthy pulp has good healing potential when it is exposed, although the exact repair mechanism is still undetermined, and it is not material-specific. Calcium hydroxide appears to promote the healing process and is the most widely accepted capping material. Paste-type calcium hydroxide formulations are more consistent in promoting healing of pulp exposures than cement forms where bacterial microleakage is eliminated. The prognosis for pulp capping with calcium hydroxide is good if the pulp has no pre-existing symptoms of pain, and the environment provided for it is suitable. This requires the absence of blood clots and bacterial contamination. Where there are some symptoms of pain in a vital tooth, pretreatments with suitable materials improve the prognosis.