极固宁治疗牙本质敏感症的临床疗效观察

目的 评价双重脱敏剂极固宁治疗牙本质敏感症的临床疗效。方法 采用极固宁对He面和牙颈部敏感的98颗患牙及龋坏备洞后敏感的60颗患牙进行脱敏治疗，观察时刻，1周，1个月疼痛的VAS值。结果 He面和牙颈部脱敏总有效率即刻，1周，1个月分别为93.88%,88.78%,86.73%；洞衬即刻疗效中龋为94．12％，深龋为73．08％，医生和患者的综合临床评价有效率分别为86．73％和80．61％；无明显不良反应。结论 极固宁是治疗牙本质敏感症的有效方法之一。     

MS COAT治疗牙颈部牙本质过敏症的疗效观察

目的观察新型脱敏剂MSCOAT治疗牙颈部牙本质过敏症的短期疗效。方法选取患有牙颈部牙本质过敏症的患者53人,患牙82颗,随机分成MSCOAT处理组和75％氟化钠甘油脱敏剂处理组（对照组）,采用可视分级评价法（VAS法）评价患牙脱敏治疗前、后的敏感性,观察治疗后即刻、治疗后1周、1个月、3个月的疗效。结果与治疗前相比,治疗后即刻、1周、1个月、3个月时MSCOAT治疗组患牙的敏感性显著降低,其VAS降低值明显多于对照组（P〈0．001）,即MSCOAT脱敏效果优于对照组。结论脱敏剂MSCOAT的脱敏效果优于75％氟化钠甘油脱敏剂,是一种临床疗效较好的治疗牙颈部牙本质过敏症的脱敏剂。     

iBOND治疗老年人牙根面敏感症疗效观察

目的：观察单组份自酸蚀粘接剂iBond治疗老年人牙根面敏感症的临床疗效。方法：选取患牙根面敏感症的60-75岁患者50人,患牙106颗,随机分成两组,分别使用iBond和Gluma脱敏治疗,采用VAS法评价脱敏治疗前后的敏感性,观察治疗后即刻、4周、8周的疗效。结果：与治疗前相比,治疗后即刻、4周、8周：iBond治疗组与GLuma治疗组内VAS值均有显著性差异（P〈0.001）,两组间VAS值相比无显著性差异（P〉0.05）。结论：使用单组份自酸蚀粘结剂iBond治疗老年人的牙根面敏感有效。     

奥威尔脱敏剂治疗牙本质敏感症的即刻疗效观察

目的观察脱敏剂奥威尔治疗牙本质敏感症的即刻疗效。方法将68例牙本质敏感症的患者随机分成实验组和对照组,实验组63颗患牙用奥威尔脱敏剂治疗,对照组56颗患牙用极固宁脱敏剂治疗,观察其即刻疗效,计算有效率,进行统计学处理及临床评估。结果实验组和对照组即刻有效率为95.23%、94.64%,1周后有效率为90.48%,91.07%。经统计学分析,2组无显著性差异（P〉0.05）。结论奥威尔治疗牙本质敏感症有较好的疗效,其远期效果有待进一步观察。     

牙本质粘结剂治疗牙本质敏感症的疗效观察

目的 了解光固化牙本质粘结剂治疗牙本质敏感症的效果。方法 比较光固化牙本质粘结剂和局部涂氟化钠即刻、１月、１２月的疗效。结果 酸处理牙面后再行粘结剂治疗牙本质敏感症的近、远期疗效明显优于氟化钠甘油糊剂脱敏法（Ｐ〈０．０１），非酸处理牙面行粘结剂脱敏的疗效也显著高于氟化钠甘油糊剂（Ｐ〈０．０５），但远期疗效不如酸处理组（Ｐ〈０．０１）。结论光固化粘结剂治疗牙本质敏感症疗效好于传统的氟化钠甘油糊剂脱敏     

高露洁脱敏抛光膏即刻改善牙本质敏感的疗效观察

目的评估临床应用高露洁脱敏抛光膏后牙本质敏感的即刻改善效果。方法牙本质敏感患者122例患牙215颗,洁治术后应用高露洁脱敏抛光膏,分别于抛光前、抛光后即刻采用冷空气喷吹法检测患牙的敏感程度,记录视觉模拟疼痛评分（visual analogue scale,VAS）值。结果 122例受试者,男性61例,女性61例,平均年龄（44.20±13.20）岁。患牙215颗,其中前牙86颗,前磨牙63颗,磨牙66颗。应用脱敏抛光膏后,73.95%的患牙敏感症状即刻完全缓解或部分缓解,所有患牙抛光前VAS值为56.52±19.68,抛光后VAS值下降为33.07±22.75,抛光前后差异有统计学意义（P〈0.001）。结论洁治术后应用高露洁抛光膏对即刻改善牙本质敏感有一定的疗效。     

Systemp脱敏剂治疗牙本质敏感症的疗效观察

目的 :观察Systemp脱敏剂治疗牙本质敏感症的临床疗效。 方法 :采用量化观察指标 ,对治疗前后不同时期的观察结果进行统计学分析。结果 :治疗后不同时期、不同牙位牙本质敏感程度均较治疗前明显降低。结论 :Systemp脱敏剂是一种较理想的治疗牙本质敏感症药物     

激光和脱敏剂治疗牙本质敏感症的临床疗效对比

目的对比Nd：YAG激光和Gluma脱敏剂治疗牙本质敏感症的临床疗效。方法 20例牙本质敏感症患者,两例对称的同名患牙分别随机分到激光组和Gluma组。激光组选用的参数为120 mJ,5 Hz,照射时间1 min,Gluma组药物涂擦时间为2 min。记录患者在治疗后即刻、术后1周、术后1个月对探针和气流刺激的视觉模拟评分（visual analogue scale,VAS）。结果术后即刻激光组、Gluma组VAS分别为4.05±0.95、4.75±1.33（P〉0.05）,术后1周激光组、Gluma组VAS分别为3.10±0.91、3.70±1.03（P〉0.05）,提示短期内激光和Gluma对牙本质敏感症的疗效无差异。术后1个月激光组、Gluma组的VAS分别为2.35±0.75、3.20±0.83（P〈0.01）,提示随着时间延长,激光照射可以显著缓解患者的牙本质敏感症状。结论 Nd：YAG激光（120 mJ,5 Hz）照射1 min与脱敏剂Gluma涂擦2 min相比,脱敏效果1周内两者无差异,术后1个月疗效以激光为优。     

YLK型齿科脱敏仪治疗牙本质敏感症的疗效

ＹＬＫ型齿科脱敏仪治疗牙本质敏感症的疗效郭文菊王秀玲张莉君西安市陕西省人民医院（７１００６８）应用中国科学院长春光机所光谱技术公司研制的ＹＬＫ型齿科脱敏仪对牙本质敏感症进行电凝法脱敏，并与氟化钠甘油脱敏的疗效对比。ＹＬＫ型齿科脱敏仪，电源２２０Ｖ，５...     

光固化粘结剂治疗牙颈部牙本质敏感症的疗效观察

采用单盲自身配对对照法，用光固化粘结剂和局部涂布氟化钠治疗牙颈部敏感症，平均疗效分别是７８．５％，６４．６％，经统计学处理，Ｐ〈０．０１，有高度显著性差别。故认为用光固化粘结治疗牙颈部牙本质敏感症优于氟化钠甘油糊剂脱敏法。     

Treating cervical dentin hypersensitivity with fluoride varnish: a randomized clinical study

BACKGROUND: This subject-blind randomized clinical trial tested the efficacy of a new 5 percent sodium fluoride varnish (AllSolutions Fluoride Varnish, Dentsply Professional, York, Pa.) for treatment of cervical dentin hypersensitivity. The authors also compared the test varnish with a control fluoride varnish (Duraphat, Colgate Oral Pharmaceuticals, New York City). METHODS: The study involved application of the test or control varnish to 19 subjects (59 teeth) with tooth sensitivity. The authors applied each product once to each tooth, following manufacturers' instructions. They used a visual analog scale (VAS) to assess subjects' responses to compressed air and ice stimuli at six weeks before baseline, at baseline and at two, eight and 24 weeks after treatment. RESULTS: Mean VAS scores for teeth receiving the test varnish dropped from 34.9 (air) and 68.0 (ice) at baseline to 26.3 (air) and 54.7 (ice) at two weeks after treatment. Mean scores at 24 weeks were 20.6 (air) and 34.8 (ice), representing statistically significant differences from baseline values. For the control varnish, mean VAS scores dropped from 36.9 (air) and 64.2 (ice) at baseline to 32.9 (air) and 47.2 (ice) at two weeks, and to 20.8 (air) and 40.3 (ice) at 24 weeks. The authors analyzed the data for statistical significance, accounting for clustering of teeth within subjects. CONCLUSION AND CLINICAL IMPLICATIONS: The test varnish was effective in reducing cervical dentin hypersensitivity. However, the efficacy was not significantly different from that of the control varnish.     

即刻牙本质封闭对预备后牙本质敏感程度的影响

目的评价牙本质即刻封闭技术对牙体预备后活髓基牙牙本质敏感程度的影响。方法30例患者行后牙三单位固定义齿修复,每例口内有2颗活髓后牙参与实验,基牙随机分为实验组和对照组。实验组在基牙预备后行即刻牙本质封闭,随后取模。对照组在基牙预备后常规取模,不进行即刻牙本质封闭。1周后行最终修复,全冠粘接后1周、1个月、6个月、12个月和18个月时检查记录患者的牙本质敏感程度,并进行统计学分析。结果固定义齿粘接后1周及1个月,实验组出现敏感基牙数少于对照组（1周：Z=-1.88,P=0.03;1个月：Z=-2.15,P=0.02）。粘接后6、12及18个月两组敏感发生率间差异无统计学意义（6个月：Z=-0.69,P=0.30;12个月：Z=-0.41, P=0.69;18个月：Z=-0.42,P=0.52）。比较两组敏感程度结果显示,实验组敏感的基牙,敏感程度主要为1度;对照组主要为1度及2度。1周及1个月观察点两组疼痛程度差异有统计学意义（1周：P＜0.05,1个月P=0.027）。结论活髓基牙牙体预备后行即刻牙本质封闭,可有效降低术后短期内牙本质过敏的发生率,减小患者的术后不适感。     

我国城市地区成人牙本质敏感的流行病学调查

目的 调查我国城市地区20～69岁成人牙本质敏感的患病状况及其影响因素,以期为临床提供资料.方法 调查对象为北京、上海、广州、武汉、成都、西安共6个城市20～69岁居民,采用多阶段、分层、等容鼍随机抽样的方法,样本来自6个城市的36个抽样点.调查内容包括牙本质敏感的临床检查和问卷调查.牙本质敏感的诊断结合了受检者的自我感觉和临床上冷空气喷吹敏感检查.临床检查是在常温下,距离牙面1 cm处气枪吹压缩空气,受检者确认是否敏感或疼痛.结果 7939名20～69岁成人完成了牙本质敏感的临床检查和问卷调查.在调查人群中,40.7%(3230/7939)的受检者自述有牙本质敏感的症状,结合气枪吹气诊断并排除龋齿等其他引起疼痛的疾病,受检人群牙本质敏感的患病率为29.7%(2354/7939),人均牙本质敏感牙数为1.4颗.50～59岁年龄组人群牙本质敏感的患病率最高,为39.1%(622/1592).牙本质敏感好发于前磨牙,最常见的引起牙本质敏感的刺激因素为冷刺激.女性、受教育程度低、有牙龈退缩、附着丧失及胃食管反流史等因素与牙本质敏感的发生有关.结论 我国城市地区20～69岁成人牙本质敏感很常见,应得到口腔专业人员的关注.     

The effect of fluoride and strontium application on dentin: in vivo and in vitro studies.

The effectiveness of topical 2% sodium fluoride applied with and without 10% strontium chloride pretreatment was compared in patients complaining of tooth hypersensitivity. In addition the radiopacity of 2% sodium fluoride and 25% strontium chloride treated dentin was studied in vitro. Reduction of sensitivity to cold and mechanical stimuli was evaluated during a period of 3 months by pain scoring in the exposed cervical dentin of homologous teeth on the two sides of the jaws. There was a significant decrease in the sensitivity of the exposed cervical dentin after treatment with sodium fluoride solution with or without pretreatment with strontium chloride solution. At the end of the experimental period the combined strontium and fluoride treatment was found to be more effective than that of fluoride alone in reducing sensitivity to cold. The increase in radiodensity of dentin samples immersed in strontium chloride was statistically significant, while there was no significant increase in density for the samples immersed in sodium fluoride solutions. A mineralization process is possibly the effective means by which fluoride or strontium diminishes sensitivity of dentin.     

The Efficacy of Three Desensitizing Agents Used to Treat Dentin Hypersensitivity

BackgroundIn a single-center, double-masked, split-mouth–designed, clinical short-term trial, the authors assessed the clinical responses of teeth with dentin hypersensitivity (DH) after treating the teeth with one of three desensitizing agents across four weeks.MethodsThe authors selected 131 teeth with DH in 11 participants. The authors assessed DH of the teeth by using tactile stimuli and air stimuli and had the participants record the level of sensitivity by means of a visual analog scale (VAS). The authors then treated the teeth with one of three desensitizing agents (Pain-Free [Parkell, Edgewood, N.Y.], BisBlock [Bisco, Schaumburg, Ill.], Seal & Protect [Dentsply DeTrey, Konstanz, Germany]) that they applied according to the manufacturers' instructions. The authors used a split-mouth–designed study in which the teeth in different quadrants of the participants' mouths received different desensitizing agents. The authors also conducted DH evaluations at 10 minutes after treatment and at one, two, three and four weeks. The authors analyzed data statistically by using Mann-Whitney U and Kruskal-Wallis tests.ResultsThe results of the statistical analysis showed that all VAS scores at the posttreatment evaluation periods were reduced significantly compared with those at baseline (P < .05). More teeth were sensitive to air stimuli than to tactile stimuli. The mean VAS scores for DH in the mandibular teeth were significantly higher than for those in maxillary teeth immediately after treatment (for tactile stimuli) and two weeks after the first application (for air stimuli) (P < .05)ConclusionsAll three desensitizing agents were effective in relieving DH up to four weeks, independent of their application procedures. There was, however, a significant reduction in mean sensitivity scores of teeth that had been treated with Seal & Protect and Pain-Free compared with those of BisBlock at weeks two, three and four.Clinical ImplicationsThe study results should be considered with caution, as it is not clear how many of the pain relief effects were related to the natural desensitization of teeth over time.     

Evaluating the Effect of an Ozone Delivery System on the Reversal of Dentin Hypersensitivity: A Randomized,Double-blinded Clinical Trial

The aim of this study was to evaluate the effect of an ozone delivery system (HealOzone; KaVo, Biberach, Germany) in reducing dentin hypersensitivity. An 8-week, 3-visit, triple-blinded, randomized controlled clinical trial with 2 HealOzone machines (ozone/air) involving 44 subjects was conducted. The pain in response to tactile stimulus or desiccation was assessed by using a 100-mm visual analogue scale. Also, the global subjects' perception of sensitivity was assessed at each visit by using the visual analogue scale. No subjects reported an increase in pain or any adverse effect. All subjects reported a clinically significant reduction of pain at each follow-up relative to baseline; however, the difference between the study groups was not statistically significant. The effect of treatment of hypersensitive teeth with ozone reduces the pain sensation, but this effect cannot be distinguished from the placebo treatment. There was a large placebo effect that narrowed the range over which to detect treatment differences.     

两种参数设置的激光联合氟化物治疗牙本质敏感症的临床评价

目的比较两种不同参数设置的激光联合氟化物治疗牙本质敏感症的临床效果。方法 60例患者,270颗面磨耗导致牙本质敏感症的患牙,随机分为:Nd:YAG激光治疗(A组)、Er:YAG激光治疗(B组)和多乐氟组(C组),根据激光输出功率不同分为低功率组(A1、A2、B1、B2组),高功率组(A3、A4、B3、B4组),其中A2,A4、B2,B4组为激光与多乐氟联用。采用数字化疼痛评判法(visual analogue scale, VAS)记录其在治疗前、治疗后5 min、1周、1个月、3个月和6个月的牙齿敏感程度,并进行统计学分析。结果各实验组治疗前VAS评分差异无统计学意义;A4组疼痛降低86.9%,明显优于其他实验组(P<0.01);A2、A4组(疼痛分别降低76.9%、86.9%)疗效优于A1、A3组(疼痛分别降低66.6%、73.7%),A3疗效优于A1组(P<0.01);Er:YAG激光治疗组是否联合氟化物治疗或增加输出功率对疗效无明显影响(P>0.05);A1、B1组疼痛降低(66.6%、62%)差异无统计学意义(P>0.05),A3、B3组仅在即刻(70...     

Power toothbrushes, gender, and dentin hypersensitivity

Power toothbrushes require less force for plaque removal than manual brushes. In addition, in vitro studies have indicated that brushing with low force could occlude patent dentin tubules by formation of a smear layer. Hence, lessening the force necessary to remove plaque may reduce dentin hypersensitivity. However, it was recently suggested that the use of an oscillating/rotating power toothbrush could decrease tooth sensitivity as compared to a sonic power toothbrush. Therefore, the objective of the present research was to compare the effect on dentin hypersensitivity of two different types of power brushes, the Optiva Sonicare and the Braun Oral B Ultra Plaque Remover. The null hypothesis was tested in an 8-week, randomized, parallel group, examiner-blind clinical trial. Fifty-nine subjects with a history of dentin hypersensitivity participated. Dentin hypersensitivity-associated pain was elicited using tactile and evaporative stimuli and assessed using a visual analog scale (VAS) instrument. Clinical examinations were carried out at screening and baseline and repeated after 8 weeks of twice daily use of the power brushes. Data analysis was performed on VAS scores obtained at the final visit following adjustment for group differences at baseline. A 35% to 40% reduction in pain as compared to baseline was observed in both treatment groups. Treatment-related differences were not statistically significant. A gender-related effect on dentin hypersensitivity was observed using the tactile stimulus and may merit further investigation. Received: 19 October 1999 / Accepted: 20 January 2000     

三种粘接剂粘接不同牙本质的微拉伸粘接强度比较

目的采用微拉伸粘接强度实验测定3种牙本质粘接剂粘接楔状缺损处硬化牙本质的粘接强度。方法选择有典型楔状缺损并因牙周病拔除的上颌前磨牙30颗作为实验组，正常上颌前磨牙30颗作为对照组，使用粘接剂A（全酸蚀粘接剂Scotchbond Multi—Purpose）、B（一步法自酸蚀粘接剂Adper Prompt L-Pop）和C（两步法自酸蚀粘接剂Contax）处理硬化牙本质和正常牙本质表面，相应树脂修复。测试两组试件的微拉伸粘接强度。结果粘接剂A、B、C粘接硬化牙本质的微拉伸粘接强度分别为46．805MPa、39．045MPa、29．852MPa。粘接剂A和C与硬化牙本质的微拉伸粘接强度低于正常牙本质，而粘接剂B与之相反，差异有统计学意义（P〈0．05）。结论牙颈部楔状缺损处硬化牙本质由于结构上的特殊性可造成粘接困难。酸性强有利于粘接剂与硬化牙本质的粘接。     

The clinical effect of amorphous calcium phosphate (ACP) on root surface hypersensitivity

Dentin hypersensitivity is a transient condition that often resolves with the natural sclerotic obturation of dentin tubules. A method of rapidly forming calcium phosphate compounds within these tubules can mimic sclerosis and lead to rapid reduction in hypersensitivity. Amorphous calcium phosphates (ACP) can be formed in situ by the sequential application of calcium and phosphate solutions. In this clinical study, 30 patients with reported dentin hypersensitivity were randomly assigned to parallel treatment or placebo groups. In the experimental treatment group, ACP was formed by topical application of a 1.5 mol/L aqueous solution of CaCl2 followed by topical application of 1.0 mol/L aqueous K3PO4. The placebo group was treated with a topical application of 1.0 mol/L aqueous solution of KCl followed by topical application of distilled water. Treatments were repeated at the 7-day and 28-day recall appointments. Response to air and tactile stimuli were measured immediately before treatment using a visual analog scale initially on day 1, then on days 7, 28 and 180. The results showed that both the experimental and placebo treatments resulted in a reduction in hypersensitivity at 180 days. However, the ACP treatment group showed a much more rapid reduction in hypersensitivity over time. The change in sensitivity was much more apparent using the air stimulus than the tactile stimulus. These results show that topical placement of ACP can rapidly reduce dentin hypersensitivity.