含5%硝酸钾牙膏抗牙本质敏感的临床研究

目的:评价含5%硝酸钾牙膏减轻牙本质敏感症状的临床效果。方法:根据随机、双盲、平行设计的试验原则,将63名受试者随机分为试验组(含5%硝酸钾牙膏)和对照组(普通牙膏)进行试验,试验周期为4周。采用视觉模拟疼痛评分法(VAS)分别记录基线和4周后受试牙的牙敏感指数。采用SPSS13.0软件包对数据进行非参数检验。结果:使用牙膏4周后,试验组牙本质敏感VAS值显著低于基线(P<0.05)。与对照组相比,试验组使用牙膏前后牙本质敏感VAS记分之差显著高于对照组(P<0.05)。结论:含5%硝酸钾牙膏具有显著的抗牙本质敏感效果,可改善患者的整体舒适度。     

含NovaMin生物活性材料的牙膏抗牙本质过敏的临床试验

目的评价含NovaMin生物活性材料的牙膏对牙本质过敏的临床效果.方法遵照随机、双盲、对照的原则.按纳入和排除标准将75名受试者随机分成3组实验组含NovaMin生物活性材料的牙膏;阴性对照组不含NovaMin生物活性材料的牙膏和阳性对照组临床已证明抗过敏有效的牙膏.采用VAS记分评价空气刺激以及冷水刺激4颗过敏牙的的敏感程度.结果使用牙膏6周后,试验组和阳性组可显著减少牙本质过敏症状.试验组经空气刺激和冷水刺激的VAS 记分降低率分别为22%和39%,阳性试验组经空气刺激和冷饮水刺激的VAS 记分分别降低了19%和22%.阴性组使用六周后,VAS记分无显著性差异(P>0.05).结论含NovaMin生物活性材料的牙膏和阳性组牙膏有抗牙本质过敏的临床效果.     

8％精氨酸牙膏降低牙本质敏感的临床试验

目的 评价含8％精氨酸的抗敏牙膏控制牙本质敏感的效果.方法 采用随机、对照、双盲的研究方法,牙本质敏感的评价采用冷空气喷吹法,在常温下距离牙面1 cm处用气枪吹压缩空气,由受试者确认是否敏感,采用数字化疼痛评判法(visual analogue scale,VAS)记录受试者的敏感程度.按照纳入和排除标准纳入受试者,基线时共纳入受试者88人,按照性别和年龄将受试者分层随机分为试验组和对照组,每组44人.试验组使用含8％精氨酸的抗敏牙膏,对照组使用含5.53％柠檬酸钾的抗敏感牙膏.基线调查后,用棉签将1 cm长的牙膏涂抹于敏感牙表面并按摩1 min,进行敏感检测.受试者使用分派的牙膏和牙刷每天刷牙2次,每次至少1 min,分别在第3天和1周时接受回访.结果 所有受试者均完成了1周的临床试验研究.试验组和对照组受试者基线时的冷空气喷吹敏感VAS值(分别为55.51 ±8.48、56.67±10.22)和自我评价敏感VAS值(分别为43.75±6.65、41.98±8.53)差异均无统计学意义(P＞0.05).局部涂抹牙膏并按摩1 min,刷牙3d和1周后试验组冷空气喷吹敏感VAS值和自我评价敏感VAS值均较基线时显著下降(P＜0.01),对照组虽有下降但差异均无统计学意义(P＞0.05).与基线相比,试验组冷空气喷吹敏感VAS值和自我评价敏感VAS值的减少程度在3个时间点均显著高于对照组(P＜0.05).结论 含8％精氨酸的抗敏牙膏在单次局部涂抹后能即刻缓解牙本质敏感,刷牙1周后可有效缓解牙本质敏感.     

奥威尔牙膏抗牙本质过敏的疗效研究

目的:评价家庭日常使用奥威尔牙膏后牙本质过敏症状的改善情况。方法:将60名受试者随机分成2组:实验组使用奥威尔牙膏,对照组使用普通牙膏。两组受试者每天刷牙2次共8周,采用VAS记分评价基线0、2、4周和8周受试者的牙本质敏感程度。结果:实验组基线0周时记分为5.92±1.04,4周和8周后为4.39±1.30、3.98±1.19,可显著减少牙本质过敏症状(P<0.05);与对照组4周和8周后记分5.08±1.17、4.65±1.18相比,有显著性差异(P<0.05)。结论:奥威尔牙膏有抗牙本质过敏的效果。     

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目的评价含有NovaMin技术的专业修复牙膏治疗牙本质敏感症的临床疗效。方法选择2011年6月至2012年2月在首都医科大学附属北京口腔医院口腔内科就诊的牙本质敏感症患者76例（228颗患牙）,惠牙随机等分为试验组和对照组,分别采用舒适达专业修复牙膏和氟化钠甘油治疗。观察治疗后30min、l周、3个月和6个月的疗效。结果试验组治疗后30min、1周、3个月及6个月有效率均明显高于对照组（P〈0．05）？结论含NovaMin技术的专业修复牙膏治疗牙本质敏感症的临床效果较好。     

抗龈炎IgY牙膏对牙龈炎、菌斑控制的评价

目的:观察含抗龈炎IgY牙膏对减轻牙龈炎、控制牙菌斑的临床效果.方法:采用随机、对照、双盲研究方法,筛选100名符合试验要求的受试者,随机分为试验组和对照组.试验组使用含抗龈炎IgY牙膏,对照组使用不含抗龈炎IgY的牙膏.在使用前、使用6周和使用12周后,分别记录受试者牙龈指数(gingival index,GI)、菌斑指数(plaqueindex,PI)及牙龈出血指数(bleeding on probing,BOP)情况.采用SPSS 13.0软件包对数据进行统计学分析.结果:使用12周后,试验组GI、BOP与对照组有显著差异(P＜0.05),试验组PI与对照组无显著差异(P＞0.05).结论:含抗龈炎IgY牙膏对改善牙龈炎症状有一定效果.     

NovaMin生物活性玻璃离子牙膏抗牙菌斑和牙龈炎的临床研究

目的：评价NovaMin生物活性玻璃离子牙膏抗牙菌斑和牙龈炎的临床功效。方法：遵照随机、双盲、对照的试验原则,按纳入和排除标准将100名年龄在20～48岁的受试者随机分成试验组（使用NovaMin生物活性玻璃离子牙膏）和空白对照组（使用同一公司生产的普通牙膏）,采用菌斑指数和牙龈出血指数评价受试者的牙龈健康状况。结果：试验组菌斑指数和牙龈出血指数与试验前相比在统计学上有显著性差异,试验6周后牙龈出血指数和菌斑指数分别降低了58．8％和16．4％;而对照组菌斑指数和牙龈出血指数在统计学上无显著性差异（P〉0．05）。结论：本研究提示NovaMin生物活性玻璃离子牙膏能通过减少龈上菌斑和减轻牙龈出血而显著改善牙龈健康状况。     

精氨酸牙膏对成都农村儿童龋病预防效果的研究

目的：研究精氨酸牙膏对成都农村儿童龋病的预防效果,以探索更好的龋病早期干预措施。方法随机抽取成都农村地区小学,按纳入和排除标准完成受试者筛选,将所有受试者随机分为2组,试验组使用含1.5%精氨酸及1450 ppm F-的牙膏,对照组使用含1450 ppm F-的牙膏,对2组受试者进行口腔龋病的全面检查并记录。检查结果均通过epidata软件进行数据录入,使用SPSS 13.0统计软件分析数据。结果1年后,试验组患龋率及龋均明显低于对照组。试验组乳牙新增龋失补牙数（t=1.58,P=0.001）、新增龋失补牙面数（t=1.16,P=0.001）低于对照组,恒牙新增龋失补牙数（t=1.02,P=0.005）、恒牙新增龋失补牙面数（t=1.03,P=0.002）均低于对照组,且差异具有统计学意义。结论含1.5%精氨酸及1450 ppm F-的牙膏较含1450 ppm F-的牙膏对儿童龋病预防效果更显著。     

舒适达牙膏治疗活髓基牙预备后牙本质敏感症的疗效观察

目的：探讨舒适达牙膏治疗活髓基牙预备后牙本质敏感症的疗效。方法：采用自身配对设计将63例患者126颗基牙随机分为舒适达牙膏治疗组和普通牙膏对照组,观察即刻、10d后、3个月后的临床疗效。结果：实验组各阶段的治疗有效率均显著高于对照组（P〈0.05）。结论：舒适达牙膏能有效缓解活髓基牙预备后的牙本质敏感症状。     

氟化泡沫治疗龈下刮治后牙齿敏感的疗效观察

目的：比较龈下刮治后使用氟化泡沫对减轻牙齿敏感的临床效果。方法：选择牙周洁治后患者100例,分为试验组（50例）和对照组（50例）,试验组在龈下刮治后1周连续使用2次氟化泡沫脱敏,对照组单纯进行龈下刮治,观察治疗后1、2、3个月两组PD、VAS值及牙髓电活力值的变化情况。结果：龈下刮治后3个月,试验组和对照组PD均显著降低（P〈0.05）,两组间无统计学差异;与对照组相比,试验组的VAS值显著降低（1.96±1.78）及牙髓电活力值显著增高（32.11±11.16）,差异有统计学意义（P〈0.05）。结论：氟化泡沫在龈下刮治后应用可以起到减轻牙本质敏感的效果。     

Comparative investigation of the desensitizing efficacy of a new dentifrice containing 5.5% potassium citrate: an eight-week clinical study

OBJECTIVE: This double-blind clinical study was designed to investigate the relative effectiveness of a new desensitizing test dentifrice containing 5.5% potassium citrate, 1.14% sodium monofluorophosphate (MFP) and 10% high-cleaning silica (HCS) in a silica base for reducing dentinal hypersensitivity over an eight-week period, to that of a commercially available desensitizing positive control dentifrice containing 3.75% potassium chloride, 0.32% sodium fluoride and 0.3% triclosan in a silica base. METHODOLOGY: A total of 80 subjects were entered into the study, and stratified into two balanced groups according to their baseline mean thermal (air blast) and baseline mean tactile (Yeaple Probe) sensitivity scores. The two groups were randomly assigned to use either the test dentifrice containing potassium citrate/MFP/HCS, or the positive control dentifrice containing potassium chloride/sodium fluoride/triclosan. The two groups were well balanced with regard to their mean baseline thermal and tactile sensitivity scores, sex and age. Subjects were instructed to brush their teeth twice daily (morning and evening) for one minute with their assigned dentifrice and a commercially available soft-bristled toothbrush. Dentinal hypersensitivity examinations, which included tactile sensitivity and thermal sensitivity, were conducted at baseline, four weeks, and eight weeks. Examinations were conducted by the same dental examiner on the subjects at each examination. RESULTS: After four weeks' use of their assigned products, those subjects in the test dentifrice group demonstrated no statistically significant difference for controlling dentinal hypersensitivity as compared to the positive control dentifrice group in tactile and air blast. After eight weeks' use of their assigned products, those subjects in the test dentifrice group again demonstrated no statistically significant difference in tactile and air blast sensitivity as compared to the positive control dentifrice group. CONCLUSION: The results of this double-blind clinical study indicate that the use of a commercially available test dentifrice containing 5.5% potassium citrate, 1.14% sodium monofluorophosphate and 10% high-cleaning silica in a silica base demonstrates no statistically significant difference in tactile and air blast sensitivity compared to the commercially available desensitizing positive control dentifrice containing 3.75% potassium chloride, 0.32% sodium fluoride and 0.3% triclosan in a silica base.     

Effect of a desensitizing dentifrice on dentinal hypersensitivity

Abstract The objective of this study was to assess the effectiveness of a dentifrice with 2% dibasic sodium citrate in poloxamer 407 in decreasing dentinal hypersensitivity. The test toothpaste was compared with a control toothpaste containing 0.76% sodium monofluorophosphate in a 6-week double-blind clinical trial. A total of 75 hypersensitive teeth were examined in the test group, while 100 hypersensitive teeth were in the control group. Changes in hypersensitivity levels were monitored after 6 weeks, using thermal, chemical and mechanical stimuli. At the end of 6 weeks, the test dentifrice was not significantly more effective than the control in decreasing dentinal hypersensitivity. Of the stimuli used, cold was the most effective in eliciting a hypersensitive response, followed by chemical stimulation and air. Heat and toothbrushing caused the least discomfort.     

Effect of a desensitizing dentifrice on dentinal hypersensitivity

The objective of this study was to assess the effectiveness of a dentifrice with 2% dibasic sodium citrate in poloxamer 407 in decreasing dentinal hypersensitivity. The test toothpaste was compared with a control toothpaste containing 0.76% sodium monofluorophosphate in a 6-week double-blind clinical trial. A total of 75 hypersensitive teeth were examined in the test group, while 100 hypersensitive teeth were in the control group. Changes in hypersensitivity levels were monitored after 6 weeks, using thermal, chemical and mechanical stimuli. At the end of 6 weeks, the test dentifrice was not significantly more effective than the control in decreasing dentinal hypersensitivity. Of the stimuli used, cold was the most effective in eliciting a hypersensitive response, followed by chemical stimulation and air. Heat and toothbrushing caused the least discomfort.     

Clinical evaluation of a potassium nitrate dentifrice for the treatment of dentinal hypersensitivity

Abstract The effectiveness of a 5% potassium nitrate dentifrice as a daily home treatment for dentinal hypersensitivity was evaluated in a double-blind study in 36 Japanese subjects who complained of cold and/or tactile hypersensitivity. The subjects were divided into 2 groups, with 18 being given a 5% potassium nitrate dentifrice (treated group) and the other 18 a vehicle paste (control group). Both groups were instructed to brush their teeth 2 × a day. The hypersensitivity levels of the affected teeth were assessed by 2 stimuli, one tactile and the other cold air, and by the perception of pain. The results of all 3 assessment methods indicated that the potassium nitrate dentifrice significantly decreased the level of hypersensitivity at weeks 4, 8, and 12. In the treated group, a rapid decrease of positive scores for both the cold air stimulus and the subjective symptoms appeared from week 2. Although a significant decrease of the assessment score was also observed in the control group, the reduction rate of the score was much greater in the treated group by ail 3 assessment methods at weeks 4, 8, and 12. Complete relief of subjective symptoms throughout the 12 weeks’examination was noted in 67% of the subjects in the treated group, but in only 6% in the control group. These results suggest the usefulness of a 5% potassium nitrate dentifrice in Japanese patients with dentinal hypersensitivity.     

Use of multiple sensitivity measurements and log it statistical analysis to assess the effectiveness of a potassium-citrate-containing dentifrice in reducing dentinal hypersensitivity

A potassium citrate-SMFP containing dentifrice was tested in a double-blind 8-week clinical trial on subjects with a history of dentinal hypersensitivity. A dentifrice containing SMFP but no potassium salt was used as the control and a 2nd test dentifrice containing potassium nitrate-SMFP was assessed at the same time. The sensitivity of the subjects was evaluated at 0, 3 and 8 weeks using electrical and tactile methods plus a 1-s air blast. The sensitivity scores for each subject at each examination were summarised as a proportion of the examined teeth deemed sensitive. Assessment of any effects of the dentifrices was via an analysis of covariance of the logit transformation of these proportions with the baseline value as the covariate. The use of this novel method of analysis had the advantage of taking into account changes in sensitivity of all of the teeth, both sensitive and non-sensitive, since electrical measurements indicated effects on both. Of the original 120 subjects, 111 completed the trial and the 3 dentifrice groups remained well balanced for age, sex and sensitivity. All 3 dentifrice groups showed statistically significant reductions in sensitivity over the 8 weeks. However, the potassium citrate-SMFP dentifrice was significantly more effective than either the control SMFP dentifrice, or the potassium nitrate-SMFP dentifrice, at reducing sensitivity after 3 weeks, and this difference plus further sensitivity reduction with all 3 dentifrices was observed after 8 weeks.     

Efficacy of a 3% potassium nitrate desensitizing mouthwash in the treatment of dentinal hypersensitivity.

BACKGROUND: Potassium nitrate has been used previously in a dentifrice or gel to alleviate dentinal hypersensitivity. The aim of this study was to compare a 3% potassium nitrate/0.2% sodium fluoride mouthwash with a 0.2% sodium fluoride control mouthwash in a 6-week double-blind study. METHODS: Fifty subjects were evaluated using 2 tactile methods and cold air sensitivity (dental air syringe), along with subjective perception of pain (0 to 10 scale) at baseline and at 2 and 6 weeks. RESULTS: There was a general decrease in dentinal hypersensitivity levels in both groups over the 6-week study period as demonstrated by all 4 methods of assessment. There was also a statistically significant difference in decrease in sensitivity between the groups. CONCLUSIONS: This study showed that a 3% potassium nitrate/0.2% sodium fluoride mouthwash appears to have therapeutic potential to alleviate dentinal hypersensitivity.     

Efficacy of strontium chloride in dental hypersensitivity

Controlled stimuli were used to evaluate a commercially available dentifrice containing 10% strontium chloride hexahydrate for efficacy in alleviating the symptoms of uncomplicated dentinal hypersensitivity. Sixty-one subjects with hypersensitivity were included in the 12-week, double-blind, parallel, comparative (placebo) study. Levels of hypersensitivity in affected teeth were assessed by three methods: thermally controlled cold air stimulus, tactile stimulus with an electronic pressure sensitive probe, and subjective response. The results from all three methods of assessment indicated that the strontium chloride dentifrice, in comparison with a placebo, reduced dentinal hypersensitivity to a significantly greater degree. This therapeutic response to the active agent was apparent within 2 weeks and increased continuously thereafter for the length of the study. One can conclude that the regular at-home use of a dentifrice containing 10% strontium chloride hexahydrate is an effective means for reducing the discomfort and pain engendered by thermal and tactile stimuli in patients with dentinal hypersensitivity.     

Clinical evaluation of a dentifrice containing calcium sodium phosphosilicate (novamin) for the treatment of dentin hypersensitivity

PURPOSE: To evaluate the efficacy of a dentifrice containing calcium sodium phosphosilicate (NovaMin) study versus a placebo and a commercially-available SrCl2 containing dentifrice for the treatment of dentin hypersensitivity. METHODS: This was a 6-week, randomized, parallel-arm, double-blind clinical study. 71 subjects ranging in age from 21 to 56 years old completed the study. Evaporative and thermal stimuli were used to measure pain using a VAS scale. Measurements were obtained at baseline, 2 weeks and 6 weeks. RESULTS: The placebo and the NovaMin groups showed a statistically significant decrease in sensitivity by both measures after 6 weeks (P < 0.05). The SrCl2 group showed a statistically significant decrease from baseline at the 2-week time point, but not at the 6-week time point for the evaporative stimulus. The percent reduction in sensitivity at 6 weeks for the NovaMin test group was 35% for air and 39% for cold water stimulus, versus 11% for air and 22% for cold water for the SrCl2 paste. The reductions for the placebo paste were 21% for the air stimulus and 18% for water. A cross tabulation measure of the reduction in sensitivity at each time point for all three treatments showed that the NovaMin product was more effective than either of the other products. For the air stimulus in the NovaMin group, 58% of subjects improved at each time point compared with 26% for the SrCl2 group and 20% for the placebo group. These results demonstrate that the NovaMin dentifrice was more effective at reducing sensitivity compared with a commercial dentifrice and placebo control.