Nd:YAG激光辅助复合体治疗根面龋的即刻脱敏作用及临床效果观察

目的：观察Nd：YAG激光辅助Dyract复合体治疗老年人根面龋的即刻脱敏效果及充填修复效果。方法：选择66例老年忠者的162颗临床诊断为根面龋并有牙本质过敏症的患牙，随机分成2组，实验组用脉冲Nd：YAG激光照射窝洞后，用光固化Dyract复合体充填修复，对照组用光固化Dyract复合体直接充填修复。观察2组的即刻脱敏效果及半年、一年的临床充填修复效果，井进行统计学分析。结果：实验组即刻脱敏显效率为90．2％，半年成功率为96．3％，一年成功宰为92．7％；对照组的即刻脱敏显效率、半年成功率、一年成功率分别为76．3％、92．7％，82．5％。2组的即刻脱敏显效率和一年成功率差异有统计学意义。结论：选择合适参数谩置，用脉冲Nd：YAG激光辅助Dyract复合体治疗老年根龋，能减轻术后牙本质敏感症状和提高充填修复的效果，具有临床使用价值。     

三种脱敏剂治疗支托窝牙本质敏感症的疗效比较

目的 探讨三种牙本质脱敏剂对（牙合）支托窝牙本质过敏症疗效.方法 气吹法和数字化疼痛评判法（VAS）检测牙本质敏感患者的敏感程度.选87名共212颗牙（牙合）支托窝牙本质敏感的天然牙,随机用诺华敏（NovaMin）、极固宁（GreenTM Or）和MS Coat进行脱敏,观察连续脱敏4天后即刻、1个月、2个月和3个月的脱敏效果.比较各脱敏剂不同时段内脱敏有效率的差异.结果 脱敏结束1、2个月时,诺华敏脱敏有效率高于极固宁（P＜0.05）;3个月时MS Coat脱敏有效率高于极固宁（P＜0.05）.同一种脱敏剂不同时段比较发现,极固宁在2个月时脱敏有效率低于脱敏后即刻有效率（P＜0.05）,诺华敏在3个月时脱敏有效率低于1个月时脱敏有效率（P＜0.05）.结论 诺华敏和MS Coat脱敏效果优于极固宁;极固宁和诺华敏用于（牙合）支托窝脱敏,有必要分别在脱敏2个月和3个月后再进行脱敏治疗.     

3种脱敏剂治疗超声龈下刮治所致根面牙本质敏感症的疗效观察

目的:评价极固宁、Gluma脱敏剂、75%氟化钠甘油治疗超声龈下刮治所致根面牙本质敏感症的临床疗效,探讨其作用机制.方法:将99例龈下刮冶术所致的774颗根面牙本质过敏症患牙随机分为3组,即极固宁脱敏组、Gluma脱敏剂组和氟化钠甘油脱敏组,分别进行脱敏治疗,观察即刻、1个月疼痛的VAS值.结果:极固宁脱敏组和Gluma脱敏剂的即刻有效率分别为94.32%、93.41%,显著优于氟化钠甘油脱敏组(71.83%),而脱敏后1个月,3组间无显著性差异.结论:极固宁、Gluma脱敏剂对治疗龈下刮治后产生的牙本质过敏有着较为理想疗效.     

极固宁治疗牙本质过敏症的临床疗效观察

目的：评价极固宁治疗牙本质过敏症的临床疗效。方法：采用极固宁（实验组）和双氟涂料（对照组）分别对牙本质过敏症患牙进行治疗，观察即时疗效和3月后有效率，进行统计学分析。结果：即时疗效，3月后有效率实验组分别达95．83％和91．08％，明显高于对照组，有显著性差异（p〈0．01）。结论：极固宁对牙本质过敏症具有较好的疗效。     

BisBlock脱敏剂治疗牙本质过敏疗效观察

目的观察BisBlock脱敏剂治疗牙本质过敏症的疗效。方法牙颈部楔状缺损致敏感患牙240颗,实验组120颗,用BisBlock治疗,对照组120颗用极固宁治疗。结果实验组与对照组的有效率比较:即刻疗效无显著差异,6个月及1年后差异有显著性(P<0.05,P<0.01)。结论BisBlock可用于治疗牙本质过敏症。     

脉冲YAG激光治疗牙本质过敏症的临床与动物实验观察

应用脉冲ＹＡＧ激光治疗牙本质过敏症患者８２例（１５４个患牙（并与氟化钠脱敏疗法进行了自身对比观察。结果表明激光脱敏的即刻有效率达１００％，１月后有效率仍维持在９７．２６％；氟化钠脱敏即刻有效率为６８．７４％，为了解脉冲ＹＡＧ激光照射后对牙髓的影响，应用４只兔的前牙进行了模拟临床照射实验并观察了照射后牙髓的组织学变化，认为脉冲ＹＡＧ激光治疗牙本质过敏症具有见次快、安全、方便的特点。     

三种脱敏剂治疗牙本质过敏症的临床疗效观察

目的 研究新型牙本质脱敏剂MS Coat用于牙齿咬合面过度磨耗致牙本质过敏症的疗效。方法 选择咬合面牙本质过敏患者64例，患牙184颗，分别应用MS Coat脱敏剂、极固宁及塑化液对[牙合]面过敏区进行处理，观察即刻疗效以及1个月、3个月后的持续效果。结果 三种脱敏剂的即刻有效率均较高，分别是：93％、92％、88％，疗效相似；1个月后观察为89％、88％、75％，3个月时观察MS Coat及极固宁组疗效相似，塑化液组疗效下降，临床治疗有效率分别为88％、87％、66％。结果经统计学分析，差异具有统计学意义。结论 三种脱敏剂的即刻脱敏效果均较高，但3个月后MS Coat和极固宁组疗效较高，塑化液组疗效下降，提示MS Coat是一种较适合的牙本质脱敏剂。     

四种治疗牙本质过敏方法的临床效果研究

目的 通过使用极固宁(A组)、75%氟化钠甘油 (B组)、50%麝香草酚溶液(C组)和自酸蚀粘接剂(D组)治疗牙本质过敏症,观察脱敏疗效.方法 将128例患者中诊断牙本质过敏的240颗牙随机分为 A、B、C、D 4组, 分别用4种脱敏方法治疗1疗程, 即刻及3个月后观察比较疗效.结果 A组即刻及3个月后脱敏有效率均显著优于 B、C、D组 (P＜0.01). 结论 极固宁为相对快速,有效的牙本质脱敏剂.     

MS Coat脱敏剂治疗牙本质敏感症的临床效果

目的探讨MS Coat脱敏剂治疗牙本质敏感症的临床效果。方法牙本质敏感症患者57例96颗患牙分为3组,MSCoat脱敏组34颗、极固宁脱敏组32颗,75%氟化钠甘油组30颗。对比治疗后即刻、治疗后3个月的临床疗效。结果治疗后即刻,MSCoat脱敏组、极固宁脱敏组、75%氟化钠甘油组的有效率分别为94.12%、93.75%、70.00%;治疗后3个月,3组有效率分别为88.24%、87.50%、60.00%。治疗后即刻及治疗后3个月比较,MSCoat脱敏组与极固宁脱敏组疗效差异均无统计学意义,而与75%氟化钠甘油组差异有统计学意义。结论 MSCoat治疗牙本质敏感症确切有效。     

极固宁脱敏剂治疗牙本质过敏100例临床体会

目的 观察极固宁脱敏剂在治疗牙本质过敏中的疗效。方法 门诊随机抽取100颗牙本质过敏患牙,用极固宁脱敏剂两种液体先后涂于干燥牙齿表面,吹干。结果 100例牙本质过敏患牙用极固宁脱敏剂治疗后6个月、1年、1年半有效率分别为86.33％、75.78％、45.00％。结论 极固宁脱敏剂具有双重作用,操作方法简单,疗效显著。     

脉冲Nd:YAG激光联合锶强化生物活性玻璃对牙本质过敏症的疗效评价

目的观察脉冲Nd:YAG激光联合锶强化生物活性玻璃治疗牙本质过敏症的临床效果。方法将89例患者156颗患牙随机分为3组,试验组(52颗):患牙涂锶强化生物活性玻璃并加用Nd:YAG激光照射;对照A组(49颗):仅用脉冲Nd:YAG激光照射;对照B组(55颗):仅涂抹锶强化生物活性玻璃。对比3组在治疗后即刻、1个月及3个月的疗效差异。结果3组患牙治疗后即刻疗效比较差异无显著性(P>0.05);随访1、3个月试验组总有效率优于对照A、对照B组,差异均有统计学意义(P<0.05,P<0.01),同时1个月及3个月时对照A组的有效率优于单纯生物凝胶组(P<0.05)。VAS疼痛值检测显示出不同时段试验组较两对照组治疗效果差异明显(P<0.05)。结论脉冲Nd:YAG激光联合锶强化生物活性玻璃治疗牙本质过敏症比单一的治疗方法具有更佳的临床效果。     

极固宁治疗牙齿感觉过敏症的临床疗效观察

目的 :评价极固宁 (GreenTMOr)治疗牙齿感觉过敏症的临床疗效。方法 :采用随机分组对照试验 ,以双氟涂料为对照 ,分别观察实验组和对照组的即时疗效和半年后有效率 ,并进行统计学分析。结果 :即时疗效、半年有效率实验组分别达 96 .82 %和 92 .5 2 % ,明显高于对照组的 6 6 .2 5 %和 43.75 % ,统计学分析相差显著 (P 0 .0 1)。结论 :极固宁对牙齿感觉过敏症的治疗具有较好的疗效 ,值得临床推广应用。     

激光照射加窝沟封闭治疗中老年人早期根面龋的临床观察

目的：观察Nd:YAG激光照射后光敏窝沟封闭剂封闭,治疗中老年人早期根面龋的临床效果。方法：用脉冲Nd:YAG激光照射龋损区,然后用光敏窝沟封闭剂封闭,定期复查。结果：治疗组83例早期根面龋齿中,成功69例,有效11例,失败3例,疗效明显优于对照组。结论:Nd:YAG激光照射后用窝沟封闭剂封闭对早期根面龋有较好的疗效。     

Post-operative symptoms and healing after endodontic treatment of infected teeth using pulsed Nd: YAG laser

Abstract— Forty-four teeth in 38 patients, diagnosed with chronic apical periodontitis, were endodontically treated. Root canals were shaped using a step-back technique with 5% NaOCl and 3% H₂O₂ as irrigants. In half of the teeth the canal terminus was irradiated with pulsed Nd:YAG laser (1 W, 15 pps, 1 s). All canals were then obturated with laterally condensed gutta-percha points and sealer, and final radiographs were obtained. Occurrence of spontaneous pain was recorded 1 day after treatment. Percussion pain was recorded after 1 week, and then at 3 and 6 months after treatment. Radiographic follow-up was performed at 3 and 6 months. Percussion pain was significantly less ( P >0.05) in the laser-treated group than in the control group, both 1 week and 3 months after treatment. Other differences between the groups were not significant. These results suggested that the clinical application of pulsed Nd: YAG laser might be advantageous for the treatment of infected root canals.     

2种方法联合治疗牙本质敏感症的临床研究

目的研究奥威尔脱敏糊剂和Nd:YAG激光以及它们联合作用在治疗牙本质敏感症中的作用。方法选择40例患者,共207颗患牙,分别进入空白组、奥威尔组、激光组、奥威尔+激光组联合组,每组10例患者。采用数字化疼痛评判法记录患者在治疗前、治疗后30 min、1周、6个月时的敏感程度。结果奥威尔组在治疗后30 min和1周时脱敏效果最明显,而激光组在治疗1周和6个月后效果明显。联合组在治疗后每个时间点效果均显著。空白对照组未发现明显改变。结论奥威尔和激光治疗均能对牙本质敏感症产生明显疗效。如果两者结合,效果会更好。     

Post-operative symptoms and healing after endodontic treatment of infected teeth using pulsed Nd:YAG laser.

Forty-four teeth in 38 patients, diagnosed with chronic apical periodontitis, were endodontically treated. Root canals were shaped using a step-back technique with 5% NaOCl and 3% H2O2 as irrigants. In half of the teeth the canal terminus was irradiated with pulsed Nd:YAG laser (1 W, 15 pps, 1 s). All canals were then obturated with laterally condensed gutta-percha points and sealer, and final radiographs were obtained. Occurrence of spontaneous pain was recorded 1 day after treatment. Percussion pain was recorded after 1 week, and then at 3 and 6 months after treatment. Radiographic follow-up was performed at 3 and 6 months. Percussion pain was significantly less (P < 0.05) in the laser-treated group than in the control group, both 1 week and 3 months after treatment. Other differences between the groups were not significant. These results suggested that the clinical application of pulsed Nd:YAG laser might be advantageous for the treatment of infected root canals.     

Comparative Evaluation of Nd:YAG Laser and Fluoride Varnish for the Treatment of Dentinal Hypersensitivity

IntroductionVarious methods and materials are used in the treatment of dentin hypersensitivity. The aim of this randomized prospective controlled clinical trial was to evaluate and compare the desensitizing effects of the neodymium-doped yttrium aluminium garnet (Nd:YAG) laser and fluoride varnish by considering the degree of pre- and posttreatment pain, discomfort, and functional complications.MethodsTwenty patients with clinically diagnosed cervical dentin hypersensitive teeth were included and randomly allocated to either the application of fluoride varnish (group fluoride) or Nd:YAG laser (100 mJ, 20 Hz; group Nd:YAG). The assessment of pain and discomfort was performed by a visual analog scale after an air blast at baseline, immediately after treatment, and at patient visits on weeks 1, 2, 3, and 4.ResultsLaser treatment resulted in significant improvements of discomfort immediately after treatment and after 1 week. At the 2-, 3-, and 4-week examination, the discomfort in group fluoride decreased up to nearly 75% to 85% of baseline scores, whereas the effect of the laser stayed nearly unchanged. The visual analog scale scores for pain at 4 weeks examination were significantly lower in the fluoride group compared with those in the laser group (p < 0.05).ConclusionsNd:YAG laser is a suitable tool for the immediately successful reduction of dentinal hypersensitivity and has better patient satisfaction and shorter treatment time.     

Short-term assessment of the Nd:YAG laser with and without sodium fluoride varnish in the treatment of dentin hypersensitivity--a clinical and scanning electron microscopy study

BACKGROUND: The aim of the present study was to evaluate clinically and under scanning electron microscopy (SEM) the efficacy of Nd:YAG laser irradiation alone and in combination with 5% sodium fluoride varnish in the management of dentin hypersensitivity. Methods: The study was conducted on 40 patients divided into four groups who had at least one tooth of Grade III mobility with clinically elicitable dentin hypersensitivity. Following the pretreatment assessment of hypersensitivity using the visual analog scale (VAS) and cold air blast test, the selected tooth in all the groups received 1% citric acid treatment for 1 minute. Group 1 patients received no further treatment; group 2, 3, and 4 patients received additional treatment with 5% sodium fluoride varnish, Nd:YAG laser for 2 minutes, and a combination of 5% sodium fluoride varnish and Nd:YAG laser, respectively. Two hours following treatment, hypersensitivity was again assessed, and the teeth were extracted, sectioned, and scanned using scanning electron microscopy (SEM). RESULTS: The mean VAS score in group 1 showed a 27% increase from baseline, but groups 2, 3, and 4 showed a decrease of 33%, 44%, and 62%, respectively. The mean cold air blast score showed a 22% increase in group 1, but values decreased by 43%, 50%, and 83% in groups 2, 3, and 4, respectively. The number of patent tubules also progressively decreased from group 1 through group 4. CONCLUSIONS: The combination of Nd:YAG laser and 5% sodium fluoride varnish seems to show an impressive efficacy, when compared to either treatment alone, in treating dentin hypersensitivity. The SEM findings seem to relate to the clinical findings in that reduction in number/patency of tubules was associated with improvement in treatment efficacy.     

Nd:YAG激光联合康复新液治疗糜烂型OLP疗效纵向观察

目的:评价Nd:YAG激光联合康复新液治疗糜烂型口腔扁平苔藓的纵向疗效。方法:对121例临床经病理确诊的口腔糜烂型扁平苔藓患者随机分为两组,A组41例,使用Nd:YAG激光局部照射联合康复新液湿敷治疗;B组40例,采取康复新液局部湿敷治疗;C组40例,单纯使用Nd:YAG激光局部照射治疗。3组均定期随访24 月,进行统计学分析。结果:3组病例于治疗后2周、1月、6月、24月给予疗效评定。实验A组与B、C两组治疗后2周与1月相比,复发率差异无显著性,显效率差异有统计学意义(P<0.05);治疗后6月及24月实验A组与 B、C两组显效率和复发率比较均有统计学意义(P<0.05)。结论:在合适的照射频率、照射角度、照射时间下,脉冲 Nd:YAG 激光联合康复新液治疗糜烂型扁平苔藓可以迅速达到治疗效果,控制远期复发,提高治愈成功率。