dental plaque

牙菌斑
  • 文章类型: Journal Article
    背景:固定的正畸矫治器产生斑块停滞区域,导致体积增加,结构,和斑块的组成。这增加了脱钙和白斑病变的机会。拉油,一种古老的做法,涉及在嘴里撒油,在45天后,斑块评分显着降低,在少数非正畸受试者中进行的研究中,唾液变形链球菌浓度降低。目的是比较使用芝麻油拉油和常规口腔卫生的患者正畸托槽周围牙菌斑中变形链球菌的浓度。
    方法:将需要固定正畸治疗的20名受试者分为两组:A组-拉油和B组-对照组。所有受试者都被指示遵循常见的口腔卫生方法,此外,指示A组在放置固定器具后1个月开始进行30天的抽油。从上颌侧切牙的唇表面收集斑块标本,并使用实时聚合酶链反应对变形链球菌进行定量。描述性统计的平均值和标准偏差,配对,并对非配对样本进行t检验分析。
    结果:在T1和T2之间的变形链球菌浓度的比较显示了对照组和研究组两者的显著差异。与对照组相比,实验组显示显著更低的变形链球菌浓度。
    结论:芝麻油提油疗法可显著降低正畸托槽周围牙菌斑中变形链球菌的浓度。
    BACKGROUND: Fixed orthodontic appliances create areas of plaque stagnation leading to an increase in the volume, structure, and composition of plaque. This increases the chances of decalcification and white spot lesions. Oil pulling, an ancient practice involving swishing oil in the mouth, has demonstrated a significant reduction in plaque scores after 45 days, and a reduction in salivary Streptococcus mutans concentration in few studies done in nonorthodontic subjects. The aim was to compare the concentration of S. mutans in plaque around orthodontic brackets in patients using oil pulling with sesame oil and those on routine oral hygiene.
    METHODS: Twenty subjects requiring fixed orthodontic treatment were divided into two equal groups: Group A-Oil pulling and Group B-Control. All subjects were instructed to follow common oral hygiene methods and in addition, Group A was instructed to perform oil pulling for 30 days starting 1 month after placement of fixed appliances. Plaque specimens were collected from labial surfaces of maxillary lateral incisors and quantification of S. mutans was done using real-time polymerase chain reaction. Mean and standard deviations for descriptive statistics, paired, and unpaired sample t-tests were analyzed.
    RESULTS: Comparison of S. mutans concentration between T1 and T2 demonstrated a significant difference in both control and study groups. The experimental group showed significantly lesser S. mutans concentration compared to the control group.
    CONCLUSIONS: Oil-pulling therapy with sesame oil resulted in a statistically significant reduction in the concentration of S. mutans in the plaque around orthodontic brackets.
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  • 文章类型: Journal Article
    背景:牙周病导致口腔菌群失调,增加斑块毒力和氧化应激。氟化亚锡(SnF2)结合脂多糖以降低斑块毒力。这项研究前瞻性评估了SnF2对牙龈炎成人氧化应激的影响。
    方法:这是一个2个月,单中心,单一治疗临床试验。纳入20名“疾病”(>20个出血部位,3个口袋深度≥3mm-4mm)和20名“健康”(≤3个出血部位,口袋深度≤2mm)成年人。指示所有参与者每天两次使用SnF2洁齿剂,持续2个月。口试,基线时进行改良牙龈指数(MGI)检查和牙龈出血指数(GBI)检查,1个月和2个月。龈沟液(GCF),唾液,每次就诊时收集口腔灌洗和龈上斑块以评估:内毒素,蛋白质羰基,L-乳酸脱氢酶(LDH),铁还原抗氧化能力(FRAP),氧化低密度脂蛋白(oxi-LDL),IL-6和C反应蛋白(CRP)。一项子集分析检查了被认为患心血管疾病风险较高的参与者。每组内的基线变化分析是主要感兴趣的。
    结果:与基线相比,疾病组在第1个月(67%)和第2个月(85%)的GBI和第1个月(36%)和第2个月(51%)的MGI有统计学意义上的显著降低(p<0.001)。在基线,与健康组相比,疾病组GCF中的LDH和唾液中的oxi-LDL水平更高(p≤0.01).在第1个月和第2个月,疾病组的唾液总抗氧化能力(FRAP)相对于基线增加(p<0.05),在两个时间点,疾病组的水平均高于健康组(p<0.05)。SnF2治疗在第2个月(p≤0.021)相对于基线降低疾病组和健康组的内毒素(灌洗)。氧化应激标志物的减少,即唾液中的蛋白质羰基,在第1和2个月(p<0.001),在第2个月(p=0.005),疾病组中细胞因子IL-6(灌洗)减少。对冠心病风险较高的参与者的子集分析显示,灌洗中内毒素减少,oxi-LDL,和第2个月唾液中的CRP(p≤0.04)。
    结论:使用SnF2牙粉逆转牙龈炎症,抑制内毒素并减少唾液和牙龈中的一些有害氧化剂产物。
    背景:Clinicaltrials.govNCT05326373,于2022年4月13日注册。
    BACKGROUND: Periodontal disease results in oral dysbiosis, increasing plaque virulence and oxidative stress. Stannous fluoride (SnF2) binds lipopolysaccharides to reduce plaque virulence. This study prospectively assessed SnF2 effects on oxidative stress in adults with gingivitis.
    METHODS: This was a 2-month, single-center, single-treatment clinical trial. Twenty \"disease\" (> 20 bleeding sites with ≥ 3 pockets 3 mm-4 mm deep) and 20 \"healthy\" (≤ 3 bleeding sites with pockets ≤ 2 mm deep) adults were enrolled. All participants were instructed to use SnF2 dentifrice twice daily for 2 months. An oral examination, Modified Gingival Index (MGI) examination and Gingival Bleeding Index (GBI) examination were conducted at baseline, 1 month and 2 months. Gingival crevicular fluid (GCF), saliva, oral lavage and supragingival plaque were collected at each visit to evaluate: Endotoxins, Protein Carbonyls, L-lactate dehydrogenase (LDH), Ferric reducing antioxidant power (FRAP), Oxidized low density lipoproteins (oxi-LDL), IL-6 and C-reactive protein (CRP). A subset-analysis examined participants considered at higher risk of cardiovascular disease. Change-from-baseline analyses within each group were of primary interest.
    RESULTS: The disease group showed statistically significant reductions in GBI at Month 1 (67%) and Month 2 (85%) and in MGI at Month 1 (36%) and Month 2 (51%) versus baseline (p < 0.001). At baseline, the disease group showed greater LDH in GCF and oxi-LDL levels in saliva versus the healthy group (p ≤ 0.01). Total antioxidant capacity (FRAP) in saliva increased versus baseline for the disease group at Months 1 and 2 (p < 0.05), and levels for the disease group were greater than the healthy group at both timepoints (p < 0.05). SnF2 treatment reduced endotoxins (lavage) for both disease and healthy groups at Month 2 (p ≤ 0.021) versus baseline. There was a reduction in oxidative stress markers, namely protein carbonyl in saliva, at Months 1 and 2 (p < 0.001) for both groups and a reduction in cytokine IL-6 (lavage) in the disease group at Month 2 (p = 0.005). A subset analysis of participants at higher coronary disease risk showed reductions in endotoxins in lavage, oxi-LDL, and CRP in saliva at Month 2 (p ≤ 0.04).
    CONCLUSIONS: SnF2 dentifrice use reversed gingival inflammation, suppressed endotoxins and reduced some harmful oxidant products in saliva and gingiva.
    BACKGROUND: Clinicaltrials.gov NCT05326373, registered on 13/04/2022.
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    文章类型: Journal Article
    目的:使用随机临床试验设计,研究新型洗必泰漱口水的染色预防能力,同时保持疗效。
    方法:98名受试者被招募并完成了一项为期4周的临床研究,该研究评估了新漱口水对牙菌斑的有效性,牙龈炎,以及与市售的氯己定漱口水相比的染色。评估了62名受试者的子集的漱口水对牙菌斑细菌的有效性。
    结果:使用4周后,与市售漱口水相比,新型氯己定漱口水使染色减少42.6%(P<0.05)。两种漱口水对牙龈炎的影响相当,牌匾,和菌斑细菌。
    结论:一种新的漱口水,含0.12%葡萄糖酸氯己定,已开发出可减少污渍,同时保持与市售氯己定漱口水对牙龈炎的同等功效,牌匾,和菌斑细菌。牙科医生在向牙齿容易染色且需要抗牙龈炎和抗牙斑漱口水的患者提出建议时,应考虑这些发现。
    OBJECTIVE: To investigate the stain preventing ability of a new chlorhexidine mouthwash while maintaining efficacy using a randomized clinical trial design.
    METHODS: 98 subjects were enrolled and completed a 4-week clinical study that evaluated the effectiveness of the new mouthwash on plaque, gingivitis, and staining as compared to a commercially available chlorhexidine mouthwash. A subset of 62 subjects was evaluated for the effectiveness of the mouthwashes against plaque bacteria.
    RESULTS: After 4 weeks of use, the new chlorhexidine mouthwash reduced staining by 42.6% (P< 0.05) as compared to the commercially available mouthwash. The two mouthwashes were equivalent with regards to their effect on gingivitis, plaque, and plaque bacteria.
    CONCLUSIONS: A new mouthwash, containing 0.12% chlorhexidine gluconate, has been developed that delivers stain reduction while maintaining equivalent efficacy to a commercially available chlorhexidine mouthwash with regards to gingivitis, plaque, and plaque bacteria. These findings should be considered by dental practitioners when making recommendations to patients whose teeth stain easily and need an anti-gingivitis and anti-plaque mouthwash.
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  • 文章类型: Clinical Study
    目的:种植体周围炎治疗的主要斗争是成功清除受感染的种植体表面。这项研究的主要假设是Er,Cr:YSGG激光净化效果研究感染的植入物表面具有各种植入物周围炎缺陷。这项研究的主要目的是确定Er的疗效,Cr:YSGG激光作为各种种植体周围炎模拟缺陷的去污工具。次要目标是比较Er的功效,Cr:YSGG激光在两种方案之间的口腔生物膜去除,第一种方案(2.5分钟时4个周期)和第二种方案(5分钟时5个周期)在各种种植体周围炎模拟缺陷。
    方法:将在24个测试植入物上体内形成斑块生物膜的总共3名受试者分成4个测试组。测试两种天然植入物作为对照。体外缺损模型是计算机辅助设计的,并打印到3D打印模型中,在种植体周围缺损中进行各种处理,分别为15,30,60和90度。
    结果:两者,Cr:50mJ(1.5W/30Hz)的YSGG净化方案,50%空气,和40%的水有效地减少了植入物的总表面积/生物膜比率(%),但与第一个方案(4个周期,2.5分钟)相比,第二个方案的应用持续时间(5个周期,5分钟)明显缩短.
    结论:Er,Cr:YSGG激光是各种种植体周围炎缺陷的有效去污装置。具有更长的应用时间和循环的第二方案(5分钟的5个循环)比第一方案更有效。缺陷角度影响种植体周围炎治疗的去污能力。
    临床医生预计,由于文献中现有证据的明显异质性以及需要建立临床前理论基础,因此对种植体周围炎治疗的合适治疗方式的探索受到限制。与种植体周围炎治疗相关的主要挑战包括成功净化受感染的种植体表面,对具有足够表面粗糙度的处理过的植入物表面没有任何损伤,和植入物表面的生物相容性,这允许成骨细胞在治疗表面生长,是成功的骨整合的关键。因此,这些是预期的经验三合会,需要尊重成功的种植体周围炎治疗。其中一个三联征的失败代表种植体周围炎治疗失败。Er,Cr:YSGG激光器被认为是实现所需三元组的预期装置之一。
    背景:\“Er的功效,CrYSGG激光治疗种植体周围炎。
    结果:政府IDNCT05137821。首次发布日期:2021年11月30日。
    OBJECTIVE: The major struggle in peri-implantitis therapy is the availability of successful decontamination of the infected implant surface. The main hypothesis of this study was the Er,Cr: YSGG laser decontamination efficacy investigation on the infected implant surfaces with various peri-implantitis defects. The primary objective of this study was to decide the efficacy of Er,Cr:YSGG laser as a decontamination tool at various peri-implantitis simulating defects. The secondary objective was to compare the efficacy of the Er,Cr: YSGG laser on oral biofilm removal between two protocols the first protocol (4 cycles at 2.5 min) and the second protocol (5 cycles at 5 min) at various peri-implantitis simulating defects.
    METHODS: A total of 3 subjects whose plaque biofilms formed in-vivo on twenty-four tested implants were divided into four tested groups. Two native implants were tested as controls.The in vitro defect model was computer-aided designed and printed into a 3D-printed model with various anulations in peri-implant infrabony defects, which were 15,30,60,and 90 degrees.
    RESULTS: Both Er, Cr: YSGG decontamination protocols at 50 mJ (1.5 W/30 Hz), 50% air, and 40% water were effective at reducing the total implant surface area/ biofilm ratio (%), but the second protocol had a markedly greater reduction in the duration of application (5 cycles at 5 min) than did the first protocol (4 cycles at 2.5 min).
    CONCLUSIONS: The Er, Cr: YSGG laser is an effective decontamination device in various peri-implantitis defects. The second protocol(5 cycles at 5 min) with greater application time and circles is more effective than the first one. The defect angulation influence the decontamination capability in peri-implantitis therapy.
    UNASSIGNED: Clinicians anticipate that the exploration of suitable therapeutic modalities for peri-implantitis therapy is limited by the obvious heterogeneity of the available evidence in the literature and need for a pre-clinical theoretical basis setup. The major challenges associated with peri-implantitis therapy include the successful decontamination of the infected implant surface, the absence of any damage to the treated implant surface with adequate surface roughness, and the biocompatibility of the implant surface, which allows osteoblastic cells to grow on the treated surface and is the key for successful re-osseointegration. Therefore, these are the expected empirical triads that need to be respected for successful peri-implantitis therapy. Failure of one of the triads represents a peri-implantitis therapeutic failure. The Er, Cr: YSGG laser is regarded as one of the expected devices for achieving the required triad.
    BACKGROUND: \"Efficacy of Er,Cr YSGG Laser in Treatment of Peri-implantitis\".
    RESULTS: gov ID NCT05137821. First Posted date: 30 -11-2021.
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  • 文章类型: Journal Article
    目的:本研究旨在比较采用振荡旋转技术和微振动的Oral-B®iO™电动牙刷与传统的振荡旋转牙刷的清洁效果。
    方法:30名成年参与者被随机分配使用带刷头的iO™电动牙刷或带Cross-Action刷头的传统摆动旋转牙刷Oral-B®Genius®。在家庭使用指定产品28天之前和之后评估口腔卫生指数(Rustogi改良的海军菌斑指数和牙龈出血指数)。指示参与者在研究期间避免牙间卫生。经过2周的冲洗期,在交叉设计中重复进行临床研究.
    结果:所有30名参与者完成了研究,没有辍学。使用28天后,与传统的振荡旋转牙刷相比,iO™在统计学上显示出显着较低的牙菌斑水平(25.09%vs.30.60%,p=0.029)。这种差异在边缘和近似区域尤其明显。牙龈出血指数无明显差异。
    结论:与传统的振荡旋转技术相比,Oral-B®iO™电动牙刷显示出增强的牙斑去除效率。
    结论:本研究强调了先进牙刷技术对减少牙菌斑的潜在益处,并鼓励进一步研究。
    OBJECTIVE: This study aimed to compare the cleansing efficacy of the Oral-B® iO™ electric toothbrush incorporating oscillating-rotating technology with microvibrations - with a traditional oscillating-rotating toothbrush.
    METHODS: Thirty adult participants were randomly assigned to use the iO™ electric toothbrush with the brush head iO™ Ultimate Clean or the traditional oscillating-rotating toothbrush Oral-B® Genius® with the Cross-Action brush head. Oral hygiene indices (Rustogi Modified Navy Plaque Index and Gingival Bleeding Index) were assessed before and after 28 days of home use of the assigned product. Participants were instructed to refrain from interdental hygiene during the study period. After a 2-week washout period, the clinical investigation was repeated in a crossover design.
    RESULTS: All 30 participants completed the study with no dropouts. After 28 days of use, the iO™ showed statistically significantly lower plaque levels than the conventional oscillating-rotating toothbrush (25.09% vs. 30.60%, p = 0.029). This difference was particularly noticeable in marginal and approximal areas. There were no significant distinctions in gingival bleeding indices.
    CONCLUSIONS: The Oral-B® iO™ electric toothbrush displayed enhanced plaque removal efficiency compared to a conventional oscillating-rotating technology.
    CONCLUSIONS: This study highlights the potential benefits of advanced toothbrush technologies for plaque reduction and encourages further research.
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  • 文章类型: Journal Article
    美国唾液M18给药已被证明对牙周健康提供积极的影响;然而,对于益生菌的最佳给药时间仍未达成共识.这项研究旨在评估三个月的益生菌补充剂对探查出血的影响,牙龈发炎的迹象,和牙科生物膜。62名符合条件的牙龈炎患者参加了这项安慰剂对照,双盲试验,随机分配到M18或对照组。主要结果是牙龈状况的变化(牙龈指数,胃肠道;牙龈出血指数,GBI)在1、2和3个月的锭剂施用后以及一个月的洗脱后。次要结局包括Quigley-Hein菌斑指数的变化(由Turesky等人修改。)在服用锭剂1、2和3个月后和冲洗后。总的来说,60人完成了研究(M18组和对照组分别为31和29人,分别)。未报告严重不良事件。益生菌补充剂导致1个月时牙龈出血显著减少(效应大小1.09[CI95%:0.55-1.63]),2个月(效应大小0.78[CI95%:0.26-1.30]),和3个月(效应大小0.67[CI95%:0.15-1.18])和2个月(效应大小0.63[CI95%:0.12-1.14])和3个月(效应大小0.55[CI95%:0.03-1.05])时牙菌斑积聚显着减少。三个月补充益生菌可显著减少牙龈出血和生物膜积累;然而,不会有持久的效果,表明长期摄入益生菌的需要。
    S. salivarius M18 administration has been proven to provide positive effects on periodontal health; however, there is still no consensus on the optimum duration of probiotic administration. This study aimed to evaluate the effect of three months of probiotic supplementation on bleeding on probing, signs of gingival inflammation, and dental biofilm. Sixty-two eligible individuals with gingivitis were enrolled in this placebo-controlled, double-blind trial and randomly allocated to the M18 or control groups. Primary outcomes were changes in gingival condition (gingival index, GI; gingival bleeding index, GBI) after 1, 2, and 3 months of lozenges administration and after a one-month washout. Secondary outcomes included changes in the Quigley-Hein plaque index (modified by Turesky et al.) after 1, 2, and 3 months of lozenges administration and after a washout. In total, 60 individuals completed the study (31 and 29 in the M18 group and the control group, respectively). No severe adverse events were reported. Probiotic supplementation resulted in a significant decrease in gingival bleeding at 1 month (effect size 1.09 [CI95%: 0.55-1.63]), 2 months (effect size 0.78 [CI95%: 0.26-1.30]), and 3 months (effect size 0.67 [CI95%: 0.15-1.18]) and a significant reduction in dental plaque accumulation at 2 months (effect size 0.63 [CI95%: 0.12-1.14]) and 3 months (effect size 0.55 [CI95%: 0.03-1.05]). A three-month supplementation with the probiotic resulted in a significant reduction in gingival bleeding and biofilm accumulation; however, a long-lasting effect is not expected, indicating the need for probiotic intake on a long-term basis.
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  • 文章类型: Journal Article
    牛膝(Apamarga)和Trachysperammi(Ajwain)已在许多临床条件下使用,它显示有价值的特性,可替代氯己定(CHX)治疗牙龈炎。因此,这项研究旨在评估以牛膝和茶精(AA+TA)为基础的草药漱口水的效果,0.2%CHX,和安慰剂漱口水对牙龈健康的影响,使用定量实时PCR(RT-PCR)对特定牙周病原体(牙龈卟啉单胞菌和连翘膜)的菌斑控制和抗菌活性。
    这是一项随机对照非劣效性试验,涉及108名牙菌斑诱发牙龈炎儿童,随机分为三组,每组36名儿童:A组,AA+TA漱口水;B组,CHX漱口水;和C组,安慰剂漱口水.记录基线时的牙龈指数和菌斑指数,第7天和第21天在基线和21天后,采用RT-PCR来确定每个噬斑样品的细菌计数。
    从基线到第7天和第21天,所有三组的牙龈和牙菌斑评分均逐渐显着降低。然而,安慰剂组在第7天至第21天的评分无显著差异.此外,与安慰剂组相比,干预21天后接受CHX和AA+TA漱口水的组牙龈卟啉单胞菌和连翘T.
    与CHX相比,AA+TA漱口水在抗牙龈炎和抗牙斑特性方面表现出非劣效性,提示当与机械斑块控制措施结合使用时,它可能适合作为CHX的替代品。
    UNASSIGNED: Achyranthes aspera (Apamarga) and Trachyspermum ammi (Ajwain) have been used in many clinical conditions, and it displays valuable properties as an alternative to Chlorhexidine (CHX) in the management of gingivitis. Therefore, this study aims to assess the effect of Achyranthes aspera and Trachyspermum ammi (AA + TA) based herbal mouthwash, 0.2 % CHX, and placebo mouthwash on gingival health, plaque control and antibacterial activity against specific periodontal pathogens (Porphyromonas gingivalis and Tannerella forsythia) using quantitative real-time PCR (RT-PCR).
    UNASSIGNED: This was a randomized controlled non-inferiority trial involving 108 children with plaque-induced gingivitis who were randomly assigned to three groups of 36 children each: Group A, AA + TA mouthwash; Group B, CHX mouthwash; and Group C, placebo mouthwash. Gingival index and plaque index were recorded at baseline, 7th and 21st day. RT-PCR was employed to determine the bacterial counts of each plaque sample at baseline and after 21 days.
    UNASSIGNED: All three groups exhibited a gradual and significant reduction in both gingival and plaque scores from baseline to days 7 and 21. However, the placebo group did not demonstrate a significant difference in scores between days 7 and 21. Furthermore, a significant reduction in bacterial counts of P. gingivalis and T. forsythia was observed in the groups receiving CHX and AA + TA mouthwash after 21 days of intervention compared to the placebo group.
    UNASSIGNED: AA + TA mouthwash demonstrated non-inferiority in anti-gingivitis and anti-plaque properties compared to CHX, suggesting its potential suitability as an alternative to CHX when used in conjunction with mechanical plaque control measures.
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  • 文章类型: Journal Article
    目的:本研究旨在研究使用壳聚糖纳米颗粒(ClAlPc/Ch)包裹的光敏剂氯酞菁铝对口腔变形链球菌生物膜的抗菌光动力疗法(aPDT)在三个预照射时间内的效果。
    方法:在牛牙块上培养变形链球菌菌株(ATCC25,175)的生物膜,并在连续三天内每天三次暴露于10%蔗糖溶液1分钟。将样品随机分为五个处理组(n=5):(I)使用ClAlPc/Ch进行aPDT,预照射时间为5分钟(F5),(II)使用ClAlPc/Ch的aPDT,预照射时间为15分钟(F15),(III)使用ClAlPc/Ch的aPDT,预辐照时间为30分钟(F30),(IV)0.12%二葡萄糖酸氯己定(CHX),和(V)0.9%盐水溶液(NaCl)。治疗后,收集在每个样本上形成的变形链球菌生物膜以确定活细菌的数量(菌落形成单位(CFU)/mL)。使用Shapiro-Wilk检验和方差分析(ANOVA)和TukeyHSD检验分析活菌数(α=0.05)来分析数据的正态性。
    结果:单向方差分析显示各组之间存在差异(p=0.0003),TukeyHSD后测显示CHX对变形链球菌的微生物减少量最高,与F5和F15组没有统计学差异,而NaCl组的微生物减少率最低,统计学上与F30组相似。
    结论:结果表明,在5-15分钟的预照射时间使用时,由ClAlPc/Ch介导的aPDT可以是控制变形链球菌致龋生物膜的有效方法,是0.12%CHX的替代品。
    OBJECTIVE: This study aimed to investigate the efficiency of antimicrobial photodynamic therapy (aPDT) on Streptococcus mutans biofilm in the oral cavity using the photosensitizer chloroaluminum phthalocyanine encapsulated in chitosan nanoparticles (ClAlPc/Ch) at three preirradiation times.
    METHODS: Biofilms of Streptococcus mutans strains (ATCC 25,175) were cultivated on bovine tooth blocks and exposed to a 10% sucrose solution three times a day for 1 min over three consecutive days. The samples were randomly distributed into five treatment groups (n = 5): (I) aPDT with ClAlPc/Ch with a preirradiation time of 5 min (F5), (II) aPDT with ClAlPc/Ch with a preirradiation time of 15 min (F15), (III) aPDT with ClAlPc/Ch with a preirradiation time of 30 min (F30), (IV) 0.12% chlorhexidine digluconate (CHX), and (V) 0.9% saline solution (NaCl). After treatment, the S. mutans biofilms formed on each specimen were collected to determine the number of viable bacteria (colony-forming units (CFU)/mL). Data were analyzed for normality using the Shapiro-Wilk test and the analysis of variance (ANOVA) and Tukey HSD tests to analyze the number of viable bacteria (α = 0.05).
    RESULTS: The one-way ANOVA showed a difference between the groups (p = 0.0003), and the Tukey HSD posttest showed that CHX had the highest microbial reduction of S. mutans, not statistically different from the F5 and F15 groups, whereas the NaCl group had the lowest microbial reduction statistically similar to the F30 group.
    CONCLUSIONS: The results demonstrate that aPDT mediated by ClAlPc/Ch when used at preirradiation times of 5-15 min can be an effective approach in controlling cariogenic biofilm of S. mutans, being an alternative to 0.12% CHX.
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  • 文章类型: Journal Article
    目的:确定视频技术口腔卫生建议(OHA)是否改善了诊断为牙龈炎的个体的临床牙菌斑和探查出血(BOP)评分,与3个月后的常规OHA相比。
    方法:这种并行,随机双臂治疗,单中心研究,评估了轻度-中度牙龈炎成年参与者在基线和3个月时的Turesky菌斑指数(TPI)和BOP。符合条件的智能手机参与者在基线时被随机分配到干预(量身定制的视频OHA),或控制(常规OHA)。通过问卷调查记录口腔卫生(OH)习惯/态度。所有参与者每天两次使用带有抗牙龈炎牙膏的手动牙刷。
    结果:57名参与者完成了研究。3个月后,两组牙龈健康(BOP)均得到改善,干预组的基线变化明显更大(12.21%vs6.80%,p<0.05)。干预组TPI评分下降幅度大于对照组,但差异没有达到显著性(1.15vs0.92,p=0.079).OH习惯和态度在基线时相似,3个月后观察到两组之间几乎没有差异,然而,齿间刷的使用频率显着增加,与对照组相比,干预组的口腔健康自评在该时间点显着降低(p<0.05)。
    结论:单独定制的教学视频与使用抗牙龈炎牙膏和齿间刷的适当刷牙相结合,与在一般牙科服务中使用常规OHA的抗牙龈炎牙膏刷牙相比,在3个月内显著改善了参与者的牙龈健康状况。这项研究证明了使用当代方法个性化定制的方法改变OH行为和提供OHA的好处。
    结论:OHA通常在短时间内进行口头传递。这项研究证明了具有个性化OHA的视频技术可以提高OH的依从性并赋予个人权力,接收者接收个人视觉提示,能够重播建议和技术重申。这种现实世界的技术可以更好地用于一般的牙科实践。
    OBJECTIVE: To determine whether video-technology oral hygiene advice (OHA) improved clinical plaque and bleeding on probing (BOP) scores in individuals diagnosed with gingivitis, compared to conventional OHA after 3-months.
    METHODS: This parallel, randomised 2-arm treatment, single-centre study, assessed Turesky Plaque Index (TPI) and BOP at baseline and 3-months in adult participants with mild-moderate gingivitis. Eligible participants with smartphones were randomised at baseline to intervention (tailored video OHA), or control (conventional OHA). Oral hygiene (OH) habits/attitudes were recorded with a questionnaire. All participants used a manual toothbrush with anti-gingivitis toothpaste twice daily.
    RESULTS: 57 participants completed the study. Both groups had improved gingival health (BOP) after 3-months, change from baseline being significantly greater in the intervention group (12.21% vs 6.80 %, p < 0.05). TPI scores decreased more in the intervention than control group, but the difference did not reach significance (1.15 vs 0.92, p = 0.079). OH habits and attitudes were similar at baseline and few differences between the groups were observed after 3-months, however frequency of interdental brush use was significantly increased, while self-rated oral health was significantly decreased in the intervention as compared to control group at this timepoint (p < 0.05).
    CONCLUSIONS: The combination of an individually tailored instructional video with appropriate toothbrushing using anti-gingivitis toothpaste and interdental brush, significantly improved participants\' gingival health over 3-months compared to brushing with an anti-gingivitis toothpaste with conventional OHA as delivered in the general dental services. This study demonstrates the benefit of changing OH behaviour and delivering OHA using an individually tailored approach with contemporary methodology.
    CONCLUSIONS: OHA is usually verbally delivered over short time periods. This study demonstrates video technology with individualised OHA improves OH adherence and empowers individuals, the recipient receiving personal visual cues with ability to replay advice and technique reiteration. This real-world technology could be better utilised in general dental practice.
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  • 文章类型: Journal Article
    本研究的目的是评估念珠菌的存在,这是导致儿童早期龋齿(ECC)和严重儿童早期龋齿(S-ECC)的病因之一,在6岁及以下儿童的牙菌斑和唾液中。
    我们的研究涉及60名符合纳入标准的参与者。根据临床检查,我们把他们分成三组,每个由20个孩子组成:S-ECC,ECC,和无龋齿的群体。我们在诊所就诊期间收集了儿童的牙菌斑和唾液样本。在实验室里,我们使用Liofilchem®-ChromaticTM念珠菌(RosetodegliAbruzzi,意大利)培养基并鉴定了念珠菌。
    患有S-ECC(40%)和ECC(30%)的儿童的唾液中念珠菌的存在与没有龋齿的儿童相比具有统计学意义(p<0.05)。观察,我们发现,与无龋齿的儿童相比,S-ECC(25%)和ECC(15%)的儿童仅在牙菌斑中存在更高的念珠菌(p>0.05)。在S-ECC组中,我们检测到白色念珠菌,光滑念珠菌,克鲁斯念珠菌,和唾液中的热带念珠菌,而在牙菌斑中发现了白色念珠菌。在ECC组中,白色念珠菌,光滑念珠菌,和克鲁斯念珠菌被检测到,而在无龋儿童中未检测到念珠菌。
    重要的是要考虑唾液和牙菌斑中念珠菌的存在,因为它可能在ECC的发病机制中起作用。这些发现表明,识别和预防念珠菌定植可能对个人风险评估有价值,并可能有助于减少ECC。
    UNASSIGNED: The aim of this study is to evaluate the presence of candida, which is one of the etiological factors contributing to early childhood caries (ECC) and severe early childhood caries (S-ECC), in the dental plaque and saliva of children aged 6 years and younger.
    UNASSIGNED: Our study involved 60 participants who met the inclusion criteria. Based on clinical examinations, we divided them into three groups, each consisting of 20 children: S-ECC, ECC, and caries-free groups. We collected dental plaque and saliva samples from the children during clinic visits. In the laboratory, we assessed these samples for the presence of candida using the Liofilchem® - ChromaticTM Candida (Roseto degli Abruzzi, Italy) medium and identified Candida species.
    UNASSIGNED: The presence of Candida in the saliva of children with S-ECC (40%) and ECC (30%) was statistically significant compared to children without caries (p<0.05). Observationally, we found a higher presence of candida only in the dental plaque of children with S-ECC (25%) and ECC (15%) compared to children without caries (p>0.05). In the S-ECC group, we detected Candida albicans, Candida glabrata, Candida krusei, and Candida tropicalis in saliva, while Candida albicans was found in dental plaque. In the ECC group, Candida albicans, Candida glabrata, and Candida krusei were detected, whereas Candida was not detected in children without caries.
    UNASSIGNED: It is important to consider the presence of Candida in both saliva and dental plaque, as it potentially plays a role in the pathogenesis of ECC. These findings suggest that identifying and preventing Candida colonization may be valuable for individual risk assessment and could contribute to reducing ECC.
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