含氟封闭剂三年临床防龋效果观察

该研究主要观察含氟封闭剂扔临床防龋效果，并将它同其它几种防龋方法进行了比较。作者将上海市７８６名６－８岁儿童分成四组，分别作四种处理，它们是；含氟封闭剂，普通封闭剂，ＡＰＦＩ凝胶，普通封闭剂加ＡＰＦＩ凝胶。封闭剂在研究开始时使用于第一恒磨牙，ＡＰＦＩ凝胶每半年使用一次。３年后观察这四种防龋方法对儿童牙齿的保护作用，结果显示１；含氟封闭剂对受封闭牙面的防龋效果较普通封闭剂和ＡＰＦＩ凝胶为高；对口腔中     

含氟凝胶防龋效果3年临床研究

含氟凝胶被认为是一种简便有效的防龋措施 ,本文通过1 0 72例 3年的临床观察 ,评价其防龋效果。1　材料与方法1 .1　对象与分组　调查对象为定点在我院体检的四所小学共 1 81 4人。其中男生 92 1人 ,女生 893人 ,年龄 6～ 1 2岁。自然光下常规方法进行口腔检查 ,并重点检查第一恒磨牙。按WHO统一制定的口腔检查登记表进行记录。在每年级中随机抽取两个班作为对照组共 6 0 6人 ,不作任何防龋处理。其余学生接受含氟凝胶处理 ,共 1 2 0 8人。1 .2　含氟凝胶使用方法　使用前漱口 ,清除食物残渣 ,取凝胶一支 ,等份分别置于上下颌牙托内 ,将牙…     

含氟牙膏的防龋机制,研究现状及其发展

含氟牙膏的防龋机制、研究现状及其发展华西医科大学口腔医学院（６１００４１）胡德渝综述刘大维审校一、含氟牙膏的发展概况１９４２年美国Ｄｒ，Ｄｅａｎ［１］报告，含１．０ｐｐｍ氟的饮水显著减少龋病发病率，因而导致了预防医学的一场革命。这不仅捉进了氟化饮水的...     

含氟树脂氟释放率的体外试验

目的 通过观察几种不同浓度含氟树脂氟的释放率,试图寻找一种较为理想的给氟剂量,以达到预防义齿基牙龋的目的。方法 将含ＣａＦ２５％、１０％、１５％、２０％、２５％的树脂块分别放入１００ｍｌ、２００ｍｌ、５００ｍｌ蒸馏水中浸泡。用电位法测量水中氟离子浓度,观察树脂氟的释放速率及释放规律。结果 ２０％的含氟树脂其氟释放速率优于其它浓度的含氟树脂。结论 ＣａＦ２微溶于水,混入固化的树脂中,具有良好缓释氟的     

含氟涂料防龋效果的系统评价

为了解含氟涂料防龋应用的循证医学证据,检索了Cochrane图书馆含氟涂料防龋效果的系统评价。对含氟涂料实用性、有效性、安全性、患者接受性、副作用以及同其他氟化物、防龋剂的比较或联合应用等方面进行综述总结。有限研究证据的汇总结果对很多问题不能明确回答,同时还缺乏患者接受性和含氟涂料副作用等方面的研究数据。     

含氟涂料临床应用研究进展

含氟涂料曾广泛用作洞衬剂及治疗牙体本质过敏,最近的研究表明,它也可作为一种新型的龋病预防材料。本文从含氟涂料的临床用途及效果、防龋机制、安全性及毒性、成本效益评价等几方面综述了它的研究进展,从而提出含氟涂料是一种可以推广使用的龋病预防新材料。     

含氟涂料与含氟泡沫对儿童龋病预防效果的对比研究

目的比较含氟涂料和含氟泡沫对儿童乳牙龋病的预防效果,为在我国开展乳牙龋病防治工作提供理论依据。方法随机整群抽样的方法抽取2所幼儿园的3~4岁儿童共220名,进行口腔检查,记录患龋情况。随机将这些儿童分为含氟泡沫组和含氟涂料组,分别用氟泡沫和氟保护漆进行龋齿预防,每半年1次,2年共干预4次,每年进行口腔检查,比较2组基线后1年和2年的乳牙新生龋均、新生龋面均及龋齿发病率。结果含氟泡沫组干预1年及2年后新生龋面均分别为2.58±4.36、3.85±5.15;含氟涂料组干预1年及2年后新生龋面均分别为0.95±2.28、1.94±3.32,均显著低于含氟泡沫组(P<0.01)。结论含氟涂料对儿童龋病的预防效果优于含氟泡沫。     

含氟牙膏刷牙后唾液游离氟的变化

本研究采用实验对照研究方法,通过各实验组应用含氟牙膏和空白牙膏刷牙,分别在刷牙前和刷牙后1分钟、15分钟、30分钟和60分钟留取混合唾液标本,采用离子选择电极法测定唾液游离氟,观察各组间唾液游离氟的变化差异,分析含氟牙膏刷牙后唾液游离氟的变化规律。结果表明,刷牙后唾液游离氟呈两个阶段规律性变化,无龋组刷牙后唾液游离氟的变化差异无显著性意义。     

In vitro effectiveness of dental floss in plaque removal

This study was designed to determine whether there was any measurable difference in the effectiveness of bacterial plaque removal between 4 commercially available dental flosses. By means of a highly standardized and controlled in vitro experimental model technique utilizing 50 freshly extracted third molars, the possibility of intra- and inter-individual variability was eliminated. Each tooth was individually mounted in a formatray block and the surface was finished to either a "planed" or "unplaned" surface configuration. The "planed" root surface (dentin) was achieved by using 600 grit wet-sandpaper for tooth surface reduction while the "unplaned" root surface was achieved by using 600 gift wet-sandpaper. The teeth were then individually processed to effect the growth of bacterial plaque (S. mutans) on the prepared surfaces. Each tooth was subsequently disclosed, flossed and photographed without interruption. The flossing was carried out on a flossing machine utilizing a controlled force of 50 g. A controlled direction of the stroke perpendicular to the long axis of the tooth, and a controlled frequency of flossing (2 strokes per trial) was used. The results of the clinical trials were evaluated utilizing Ektachrome slides of the previously flossed and disclosed tooth surfaces. The photographs were projected, measured, and statistically analyzed (Student t-test and paired t-test) for the effectiveness of plaque removal of the 4 dental flosses and the effect of root surface roughness on the ability of the flosses to remove bacterial plaque. It was found that on smooth, "planed" root surfaces, there were no measurable difference among the 4 flosses.(ABSTRACT TRUNCATED AT 250 WORDS)     

Comparison between water flosser and regular floss in the efficacy of plaque removal in patients after single use

ObjectiveThe objective was to compare water flosser and regular floss in the efficacy of plaque removal in patients after single use.Materials and MethodsA randomized controlled clinical trial was conducted to compare the plaque removal efficacy of water flosser and regular floss. Eighty three subjects who met the inclusion criteria were recruited from dental clinic. Silness and Löe plaque index was measured for all the subjects prior to and after the intervention by an examiner who was blind to the type of aid used. The type of floss used was randomly assigned to each side of the oral cavity; unflavored waxed regular floss (oral B) used on one side, while a water flosser (Waterpik® Cordless Plus Water Flosser) was used on the other side. A trained investigator used either unflavored waxed regular floss or water flosser as assigned. Paired t-test was used to compare between the two groups.ResultsThe mean plaque scores at baseline were 1.10(±0.38) and 0.94(±0.38) respectively for regular floss and water flosser. The mean plaque scores were 0.12(±0.13) and 0.12(±0.15) respectively for regular floss and water flosser. There was no statistically significant difference in the plaque scores (p = 0.58) between the groups after the use of respective interdental aids. There was a statistically significant difference in the plaque scores before and after use of interdental aids for both the groups (p < 0.001). Reduction in plaque scores for regular floss and water flosser groups was 89.09% and 87.23% respectively.ConclusionThe results showed that water flosser was as efficient as regular floss in removing interdental plaque on single use. Water flosser could be recommended for subjects lacking manual dexterity, by care takers for better plaque control and subjects with fixed prostheses or undergoing orthodontic treatment.     

Plaque removal by dental floss or toothpicks

Abstract. The amount of plaque accumulation was assessed in an intraindividual study comprising 10 individuals. During different 2-week periods, the test subjects used nylon floss (unwaxed, waxed and specially treated), silk floss (unwaxed and waxed), Superfloss®, or triangular toothpicks for interdental tooth cleaning. Only teeth in contact with neighboring ones and with open interdental spaces were included in the study. The plaque removal of the interdental aids used was registered by estimating the amount of plaque present at the end of each experimental period according to a Plaque Index (Silness & Löe 1964) modified for plaque registration on 10 surface units around each tooth. In general, dental floss had a higher plaque removing potential than triangular toothpicks, especially on lingual axial surfaces.     

The effect of tensile strength on the clinical effectiveness and patient acceptance of dental floss.

This study compared the clinical effectiveness and subjective approval of 2 waxed dental flosses that differed significantly in tensile strength and wax content. At the initial appointment, subjects (20 1st-year dental students) were instructed to stop interproximal cleaning on 2 contralateral quadrants in order to allow plaque to accumulate on these surfaces for 1 week. 1 week later, subjects were instructed to begin flossing these 2 contralateral quadrants with 1 of the 2 types of floss for the next 1-week period, while withdrawing interproximal cleaning on the opposite 2 contralateral quadrants. After flossing these 2 quadrants for 1 week, the subjects began flossing the opposite 2 contralateral quadrants with the same floss. After 2 weeks of flossing contralateral quadrants, the 1st floss was withdrawn and replaced with the alternative floss for another similar 2-week trial period. At the end of each 2-week trial period, subjects completed subjective questionnaires concerning the floss they had used during the previous 2-week period. Pre- and post-flossing plaque indices were calculated for each week for both flosses, and compared statistically by a repeated measures analysis of variance. The results showed that both flosses significantly reduced interproximal plaque deposits, and had equal subjective approval. However, neither the greater-strength nor the lower-wax content of the experimental floss was associated with an increase in clinical effectiveness or with a change in subjective approval.     

Knowledge and awareness assessment of cross-contamination of dental floss containers in King Saud University dental hospital clinics

IntroductionInfection control procedures are implemented in dental clinics to reduce the risk of cross-contamination; saliva, blood, or airborne droplets containing infective agents are example of direct contamination, while indirect exposure via contact with contaminated surfaces and dental equipments such as dental chair, tray, faucet, air syringe, suction tip, gutta percha, paper points, retraction cords, and dental floss containers. Dental floss is known to be an integral part of most dental procedures.ObjectivesThe objective of this study was to assess the knowledge and awareness regarding cross-contamination of dental floss containers among a selected population of dental assistants in dental clinics at King Saud University (KSU).Material and MethodsA swab was taken from 60 dental floss containers selected by simple random sampling among 60 different dental clinics at KSU and culture test was done using a charcoal transport swab to identify the type of bacteria that might be present on the dental floss containers. Also a Google forms questionnaire which consisted of 20 multiple choice questions, including demographic questions on gender, nationality, and professional experience, followed by questions to evaluate different infection control concepts and practices.ResultsThis study included 70 dental assistants, most of whom were female (94.3 %). A significant number (41.4 %) of the dental assistants have never heard of OSHA course, and most of them (77.1 %) have never taken an OSHA course. Some participants who attended > 2 infection control courses (37.8 %) did not disagree that it is a waste of material to use new gloves to clean each clinic. Regarding the laboratory results for the collected samples, the highest frequency was noted for Staphylococcus hominis (27.8 %).ConclusionThe present study concluded that there is still further need for implementation of infection control programs and raising more awareness regarding this subject.     

A comparative study of effectiveness in plaque removal by Super Floss® and waxed dental floss

The effectiveness of Super Floss and waxed dental floss as proximal surface cleansing agents was compared in 34 subjects. Each subject used 1 agent twice daily for 2 weeks followed by the other agent used with the same frequency and for the same period. The order in which the agents were used was selected at random. Plaque was stained by erythrosin, and a plaque index of Wolffe used. Super Floss was found to be superior to waxed dental floss in removing proximal plaque, but neither was 100% effective. Some plaque was present in 49.9% of the proximal surfaces when Super Floss had been used and on 54.7% when the waxed dental floss had been used. Both agents cleaned distal surfaces better than mesial surfaces, proximal surfaces of anterior teeth more effectively than those of posterior teeth, the coronal half of the proximal surfaces better than the apical half and the facial half more efficiently than the lingual half. No differences were found between maxillary teeth and mandibular teeth. Subjects used more lengths of Super Floss than of waxed dental floss, indicating its relative 'brittleness'. However, the majority of subjects preferred Super Floss, mainly because it was thicker and felt more abrasive.     

The effectiveness of 3 types of dental floss for interdental plaque removal

Abstract. The relative effectiveness of waxed dental floss, dental tape and Superfloss as proximal plaque removal aids were compared in 20 subjects. Each subject used each of the three interdental aids for I week. The order of use was randomly selected. Interdental plaque scores were recorded at baseline, weeks 1, 2 and 3. At the end of week 3, subjects answered a questionnaire to ascertain their subjective responses to the 3 types of dental floss they had used. The use of all 3 types of dental floss resulted in significant improvement in mterproximal plaque scores compared to baseline scores. Improvement in plaque scores, in decreasing order were: dental tape, dental floss and Superfloss. Dental tape was significantly more efficient than Superfloss ( p = 0.003). There were no significant differences observed between the effectiveness of dental tape and waxed floss ( p = 0.059). and waxed dental Hoss and Superfloss ( p = 0.143). Regardless of the type of dental floss used, patients removed plaque more efficiently from buccal inter-proximal areas compared to lingual/palatal interproximal areas ( p < 0.001) and from anterior teeth than posterior teeth ( p < 0.001). Subjective responses indi-cated that 50% of subjects preferred dental tape. 40% waxed dental floss and only 10% preferred Superfloss.     

Use of dental floss by Finnish students

In order to elucidate dental care behavior related to interdental cleaning, a group of first-year students were invited to a free dental examination. 186 of the students invited (76%) were examined clinically and roentgenologically. The mean DMFS-index of the students was 22.6 (+/- 12.6). They were also asked about their use of dental floss. 35% of the students reported using dental floss, but only 2% reported daily usage. 45% of the students had been taught how to use dental floss, and 83% of these had been taught by dental personnel. Teaching had no effect on the reported frequency of use. There were no statistically significant differences in the occurrence of dental plaque and gingivitis between those who used dental floss and those who did not. The subjects were unable to use dental floss on 1 out of every 3 filled proximal surfaces of the first molars. No correlation could be found between dental caries experience and the reported use of dental floss.     

Efficacy of plaque-removal using interdental brushes and waxed dental floss

Abstract – The plaque-removing efficacy when using waxed dental floss and three interdental brushes was compared in an intraindividual clinical trial. Nine adult patients treated for periodontal disease, with a reduced but healthy periodontium and large interdental spaces were subjects in the study. Each subject tested the four interdental cleaning aids in random sequence over a 2-wk period. The duration of the study was 8 wk. The results indicated that the use of interdental brushes is preferable to that of dental floss in cleaning interdental areas where the papilla is missing. No difference in achieved cleanliness was noted after use of the different interdental brushes tested. No gingival damage or damage to the hard tissue of the teeth was observed after use of interdental brushes or dental floss.