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A randomized, clinical split-mouth study comparing conventional techniques to lasers for second-stage implant uncovering 一项比较常规技术和激光用于第二阶段种植体揭露的随机临床裂口研究
Pub Date : 2016-07-01 DOI: 10.4103/2321-1385.196990
A. Rossi, R. Weltman, G. Tribble, S. Kiat-Amnuay
Purpose: This randomized, clinical split-mouth study compared participants′ pain perception, quantified the inflammatory cytokines interleukin (IL)-1 β and IL-6, and assessed changes in the quantity of five periodontal pathogens, after implant uncovering. Materials and Methods: Twelve persons who received bilateral implants participated. After healing, implants were randomly uncovered using either a scalpel (control) or a 940 nm diode laser (experimental). The participants′ pain perception was assessed by questionnaires and visual analog scale. Crevicular fluid was collected around the implants at day 1 and 7, and IL-1 β and IL-6 levels were measured by ELISA. Bacterial samples were collected around the healing abutments at day 1 and 7. Results: A statistically significant difference in change of pain score over time was found. The laser sites showed an increase in pain that continued until day 3, while the scalpel sites showed an increase in pain that declined by day 2. A global health questionnaire showed that patients overwhelmingly preferred the laser to the scalpel. IL-1 β levels were significantly lower in the laser group as compared to the control group at day 1 (387.2 pg/mL vs. 456.2 pg/mL, P = 0.02). No statistically significant differences in IL-6 or bacterial quantities were found between test and control sites. Conclusions: Even though a slightly greater amount of pain was perceived over the first 2 postoperative days, patients significantly preferred the laser to the scalpel. Less inflammatory cytokine production of IL-1 β was found after the 1 st day of healing after laser surgery. Bacterial sampling was similar between test and control groups.
目的:这项随机的临床裂口研究比较了参与者的疼痛感知,量化了炎症细胞因子白细胞介素(IL)-1 β和IL-6,并评估了种植体脱落后五种牙周病原体数量的变化。材料与方法:12例双侧种植体患者参与。愈合后,使用手术刀(对照组)或940 nm二极管激光器(实验组)随机揭开植入物。采用问卷调查和视觉模拟量表评估受试者的疼痛感觉。第1天和第7天采集植入物周围沟液,ELISA法检测IL-1 β和IL-6水平。第1天和第7天分别采集愈合基牙周围的细菌样本。结果:疼痛评分随时间变化差异有统计学意义。激光部位的疼痛增加持续到第3天,而手术刀部位的疼痛增加持续到第2天。一份全球健康调查问卷显示,绝大多数患者更喜欢激光而不是手术刀。与对照组相比,激光组IL-1 β水平在第1天显著降低(387.2 pg/mL比456.2 pg/mL, P = 0.02)。在试验点和对照点之间,IL-6或细菌数量没有统计学上的显著差异。结论:尽管术后前2天疼痛程度稍高,但患者明显倾向于激光手术而不是手术刀。在激光手术后第1天发现炎症细胞因子IL-1 β的产生减少。实验组和对照组的细菌取样情况相似。
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引用次数: 2
Evaluation of root-end cavity preparation using erbium, chromium:yttrium, scandium, gallium, and garnet laser, ultrasonic retrotips, and conventional burs 评价用铒、铬、钇、钪、镓和石榴石激光、超声后向尖端和传统毛刺制备根端腔
Pub Date : 2016-07-01 DOI: 10.4103/2321-1385.196989
Sarika Chaudhry, Sudha Yadav, G. Oberoi, S. Talwar, M. Verma
Aim: To compare root-end cavities prepared with ultrasonics (Group A), with those created by burs in a conventional handpiece (Group B) and erbium, chromium:yttrium, scandium, gallium, and garnet (Er, Cr:YSGG) laser (Group C). Materials and Methods: After root canal instrumentation and filling, apices of 60 single-rooted teeth were resected. Retrograde Class I cavities 3 mm deep were prepared using ultrasonic retro-prep tips (Group A), round burs (Group B), and Er:YSGG laser (Group C). An ultrasonic unit was used with computed tomography-5 retrotip at the frequency of 32 KHz. Laser beam parameters were a pulse of very short duration (100 s), energy of 280 mJ, and repetition rate of 10 Hz. The apical root portion and root-end cavities were replicated and prepared for stereomicroscopic analysis. Results: The degree of chipping associated with the margin of the root-end cavities and the incidence of root face cracks were noted. Marginal chipping of root-end cavities prepared using ultrasonic instrumentation was significantly higher than that produced by bur (P < 0.001) or laser, with laser group showing the least amount of chipping. Conclusion: There was a significant difference between the number of cracks produced by the three methods, with the laser group having the least number of cracks and marginal chipping.
目的:比较超声法(A组)与常规机头穿刺法(B组)和铒、铬、钇、钪、镓、石榴石(Er, Cr:YSGG)激光法(C组)的根端空腔。材料与方法:对60颗单根牙进行根管预备和充填后,切除根尖。采用超声逆行预备针尖(A组)、圆毛刺(B组)和Er:YSGG激光(C组)制备深度为3mm的逆行I级空腔。超声单元与计算机断层扫描-5逆行尖端配合使用,频率为32 KHz。激光束参数为持续时间极短(100秒)、能量280 mJ、重复频率10 Hz的脉冲。复制根尖部分和根端腔,制备立体显微镜分析。结果:龋裂程度与根端牙槽缘和根面裂纹的发生率有关。超声仪器制备的牙根端牙槽边缘切屑率显著高于超声仪器(P < 0.001)和激光仪器制备的牙根端牙槽边缘切屑率,其中激光仪器组切屑率最低。结论:三种方法产生的裂纹数量差异有统计学意义,激光组产生的裂纹数量最少,切屑边缘较少。
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引用次数: 1
Fibroepithelial hyperplasia excision by diode laser: A novel treatment approach in periodontal therapy 二极管激光纤维上皮增生切除术:一种牙周治疗的新方法
Pub Date : 2016-07-01 DOI: 10.4103/2321-1385.196995
Veena Kalburgi, Shefali Jain, N. Varma
Laser first came into light in 1960 and has been used extensively in various fields of dentistry. Lasers are widely used for a numerous procedures such as de-epithelization, pocket disinfection, frenectomy, scaling and root planing, and surgical procedures such as excision of soft-tissue growths. Improved healing, hemostasis, and sutureless excisions are some of the many advantages of laser over conventional treatment modalities. It is because of these advantages that laser is becoming more and more popular as a treatment option in various aspects of dentistry. We hereby present a case report, where we have used soft-tissue diode laser for surgical management of a fibroepithelial hyperplasia with reactive bone formation, because of its many advantages over conventional methods. Fibroepithelial hyperplasia is most commonly seen at the site of trauma in mouth or in other areas of the body. This polyp is usually not harmful and does not grow in size. However, at times, these tags may need to be surgically excised for esthetic and functional purposes or for the fear of malignancy.
激光于1960年首次出现,并广泛应用于牙科的各个领域。激光被广泛用于许多手术,如去上皮、口袋消毒、系带切除术、刮除和根治,以及软组织生长切除等外科手术。改善愈合,止血和无缝线切除是激光比传统治疗方式的许多优点。正是由于这些优点,激光作为一种治疗选择在牙科的各个方面越来越受欢迎。我们在此提出一个病例报告,其中我们使用软组织二极管激光手术治疗纤维上皮增生反应性骨形成,因为它比传统方法有许多优点。纤维上皮增生最常见于口腔或身体其他部位的创伤部位。这种息肉通常是无害的,也不会变大。然而,有时,为了美观和功能的目的,或者出于对恶性肿瘤的恐惧,这些标签可能需要手术切除。
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引用次数: 0
Surgical diode laser excision for cellular fibroma 细胞纤维瘤的外科二极管激光切除
Pub Date : 2016-01-01 DOI: 10.4103/0976-2868.184605
Veena Kalburgi, Shefali Jain, S. Raghuwanshi
The use of lasers in periodontal treatment has been well documented over the past 10 years. Lasers can be used for initial periodontal therapy and surgical procedures. When used in deep periodontal pockets with associated bony defects, the laser not only removes the diseased granulation tissue and associated bacteria but also it promotes osteoclast and osteoblast activity, often resulting in bone regrowth. Laser is effectively used to perform gingivectomies, gingivoplasties, free gingival graft procedures, crown lengthening, operculectomy, pocket disinfection, and many more. Gingival depigmentation using laser ablation has been recognized as an effective, pleasant, and reliable technique. In terms of esthetic dentistry, the use of the Erbium laser in crown lengthening in the anterior has created an entirely new dimension in smile design.
在过去的10年里,激光在牙周治疗中的使用已经有了很好的记录。激光可用于初始牙周治疗和外科手术。当用于伴有骨缺损的深层牙周袋时,激光不仅可以去除病变的肉芽组织和相关的细菌,而且还可以促进破骨细胞和成骨细胞的活性,通常会导致骨再生。激光有效地用于进行牙龈切除术,牙龈成形术,游离牙龈移植手术,冠延长,包膜切除术,口袋消毒等。使用激光消融术治疗牙龈脱色已被公认为是一种有效、愉快和可靠的技术。在牙科美容方面,使用铒激光在前牙冠延长创造了一个全新的维度在微笑设计。
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引用次数: 1
Comparative evaluation of two surgical techniques using conventional scalpel method and diode laser for treatment outcome of depigmentation: 6 months follow-up study 传统手术刀法与二极管激光两种手术方法治疗色素沉着的疗效比较:6个月随访研究
Pub Date : 2016-01-01 DOI: 10.4103/0976-2868.184600
N. Rajesh, G. Sagar, T. S. S. Kumar, KKrishna Moha Reddy, BShiva Shankar, V. Sandeep
Background: Various surgical techniques can be done for depigmentation but recurrence is the limiting factor for many surgical procedures, and the aim of the present study was to evaluate quantitatively the rate of repigmentation postoperatively after using scalpel and diode lasers for depigmentation. Materials and Methods: A total of 20 systemically healthy patients of 18 males and two females, within the age group of 18-40 years with an esthetic complaint of hyperpigmented gingiva were enrolled in this study. The patients were briefed about the surgical procedure and obtained the informed consent; they were randomly divided into two groups. Group A: 10 patients - depigmentation with scalpel technique. Group B: 10 patients - depigmentation with diode lasers (Biolase; ) and followed for 6 months. Results: The results of this study had shown that there is a statistically significant difference in the pre- and post-operative values in scalpel surgical technique with a (P = 0.005), and there is no statistically significant (P = 0.20) difference in the diode laser technique. Statistical Analysis Used: Wilcoxon Signed rank test and Mann-Whitney test. Conclusion: By using diode lasers, the rate of repigmentation is higher than scalpel method; however, it has been documented that there is minimal postoperative bleeding, pain, wound healing, discomfort, and ease of the procedure with diode laser and finally, each technique has its own advantages and disadvantages.
背景:各种手术技术可用于脱色,但复发是许多手术的限制因素,本研究的目的是定量评估手术后使用手术刀和二极管激光脱色后的再色素沉着率。材料与方法:选取年龄在18-40岁,以牙龈色素沉着为审美主因的全身健康患者20例,男18例,女2例。向患者简要介绍手术过程并取得患者的知情同意;他们被随机分成两组。A组:10例患者-手术刀技术脱色。B组:10例患者采用二极管激光(Biolase;)脱色,随访6个月。结果:本研究结果显示,手术刀技术的术前、术后数值差异有统计学意义(P = 0.005),而二极管激光技术的术前、术后数值差异无统计学意义(P = 0.20)。统计分析采用:Wilcoxon sign rank检验和Mann-Whitney检验。结论:二极管激光法比手术刀法恢复色素沉着率高;然而,有文献记载,二极管激光手术术后出血、疼痛、伤口愈合、不适最小,而且手术容易,最后,每种技术都有自己的优点和缺点。
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引用次数: 4
Comparison of microhardness and micromorphology of enamel following a fissurotomy procedure using three different laser systems: An in vitro study 三种不同激光系统对裂隙切开术后牙釉质显微硬度和显微形态的比较:一项体外研究
Pub Date : 2016-01-01 DOI: 10.4103/0976-2868.184601
R. Pavithra, P. Sugavanesh, G. Lalithambigai, T. Arunkulandaivelu, P. Madan Kumar
Aim: To compare the microhardness and microstructural changes induced in pits and fissure following a fissurotomy procedure using three different light amplification by stimulated emission of radiation (LASER) systems. Materials and Methods: Thirty caries free premolars, extracted atraumatically for orthodontic treatment were included in the study. Using a diamond low-speed disc, enamel blocks containing the pits and fissure were cut from the tooth and divided into three groups containing 10 samples in each (G1 - diode, G2 - carbon dioxide [CO 2 ], and G3 - erbium). The enamel blocks were mounted using self-cure acrylic resin and irradiated using the three LASER systems at lower energy densities. Post irradiation, the microhardness of enamel in the pit and fissure region was measured using Vickers microhardness test. Scanning electron microscopy analysis was done to check the microstructural changes of the lased enamel. Data obtained were subjected to Kolmogorov-Smirnov test and ANOVA with statistical significance set at P ≤ 0.05. Results: All three groups showed an increase in microhardness when compared to the value taken as control (control - 209.6, diode - 237.56 ± 19.27, CO 2 -294.92 ± 29.38, erbium - 264.39 ± 11.83). ANOVA test revealed a highly significant (P = 0.001) difference between the means of the three groups. Tukey post-hoc analysis showed that CO 2 LASER showed a higher increase in microhardness followed by erbium and diode LASER. Conclusion: This study revealed that the increase in microhardness and microstructural changes obtained with CO 2 LASER was higher than the other two LASER systems. Furthermore, diode LASER can be used as a viable option for fissurotomy procedure as it improves the hardness of enamel, with a homogenous sealing effect of the pits and fissure.
目的:比较三种不同的受激辐射(LASER)系统在裂隙切开术后引起的凹痕和裂隙显微硬度和显微结构变化。材料与方法:选取30颗无龋前磨牙,采用无外伤拔牙进行正畸治疗。使用金刚石低速圆盘,从牙齿上切下含有凹坑和裂缝的牙釉质块,分成三组,每组10个样本(G1 -二极管,G2 -二氧化碳[CO 2], G3 -铒)。釉质块采用自固化丙烯酸树脂安装,并使用三个激光系统在较低的能量密度下照射。辐照后,采用维氏显微硬度试验测定牙槽区和牙裂区牙釉质的显微硬度。用扫描电镜观察激光照射后牙釉质的显微结构变化。获得的数据进行Kolmogorov-Smirnov检验和方差分析,P≤0.05为有统计学意义。结果:与对照组(对照组- 209.6,二极管- 237.56±19.27,co2 -294.92±29.38,铒- 264.39±11.83)相比,三组显微硬度均有所提高。方差分析(ANOVA)显示,三组的平均值差异极显著(P = 0.001)。Tukey事后分析表明,co2激光的显微硬度增加幅度较大,其次是铒激光和二极管激光。结论:CO 2 LASER系统的显微硬度提高和显微组织变化明显高于其他两种激光系统。此外,二极管激光可以作为一种可行的选择,用于裂隙切开术,因为它提高了牙釉质的硬度,具有均匀的凹坑和裂隙密封效果。
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引用次数: 4
Laser-assisted cosmetic dentistry 激光辅助牙科美容
Pub Date : 2016-01-01 DOI: 10.4103/0976-2868.184602
Saurabh Gupta, Rubina Khatoon
A 30-year old female patient had reported with compromised aesthetics in the region of 21. On clinical examination, it was observed that the tooth (21) was discolored and supra-erupted. Also, the gingival margin level was severely affected. On radiographic examination it was found that the tooth was endodontically treated before. Laser gingivectomy was carried out to maintain the level and flow of gingival margin, and a metal free zirconia crown was given resulting highly promising dental outcome.
一名30岁女性患者在21岁区域报告美学受损。在临床检查中,观察到牙齿(21)变色和上牙。龈缘水平也受到严重影响。x线检查发现这颗牙齿以前做过牙髓治疗。采用激光牙龈切除术,维持龈缘的水平和流动,并给予无金属氧化锆冠,取得了良好的牙科效果。
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引用次数: 0
Fibrous hyperplasia: Two case reports 纤维增生:2例报告
Pub Date : 2016-01-01 DOI: 10.4103/0976-2868.184604
Kshitij V Pardeshi, Neha M Mirchandani, A. Agrawal, T. Kale
Fibrous hyperplasia is a nonneoplastic lesion of fibrous connective tissue origin considered to be a histologic variant of fibroma that causes esthetic and functional problems. The choice of treatment should always be founded on basic principles of pathology and sound surgical judgment. Diode lasers have several distinct advantages over other therapy, as they provide a bloodless field and also allow histological examination without distortion, resulting in a painless postoperative period and no collateral damage to adjacent tissues. This article present two cases of fibrous hyperplasia occurring on gingiva and labial mucosa in the second decade of life, treated by diode laser therapy with 1 year follow-up and no recurrence.
纤维增生是一种起源于纤维结缔组织的非肿瘤性病变,被认为是纤维瘤的一种组织学变体,可引起审美和功能问题。治疗的选择应始终建立在病理的基本原则和良好的手术判断。与其他治疗方法相比,二极管激光有几个明显的优势,因为它们提供了一个无血的领域,也允许组织学检查没有扭曲,导致术后无痛,对邻近组织没有附带损害。本文报告两例二十年后发生于牙龈及唇黏膜的纤维性增生,经二极体激光治疗,随访1年,无复发。
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引用次数: 2
810 nm diode laser: A reliable tool for periodontal surgeries 810纳米二极管激光器:牙周手术的可靠工具
Pub Date : 2016-01-01 DOI: 10.4103/0976-2868.184603
M. Sawai
Periodontics deals with surgeries of the gingiva and soft tissues in the vicinity of teeth. In Periodontics, the amount of gingiva is a critical factor in maintaining the health of periodontium. A very minimal loss of gingiva can at times produce esthetic problems or can be difficult to maintain for the patient. So any periodontal surgical procedure should be directed towards minimal loss of soft tissues. Periodontal procedures conducted with scalpel cause pain, post operative edema, scaring and would lead to soft tissue loss postoperatively. Hence, a tool which can efficiently conduct periodontal surgeries with minimal loss of soft tissue is required. In this facet, a soft tissue diode laser is the most appropriate tool. It can be very conveniently used for frenectomy, gingivectomy, vestibuloplasty, epulis excision, gingival depigmentation and second stage implant surgery. This article emphasizes that a diode laser is a suitable instrument for oral soft tissue surgeries.
牙周病涉及牙龈和牙齿附近软组织的手术。在牙周病中,牙龈的数量是维持牙周组织健康的关键因素。非常小的牙龈损失有时会产生美学问题,或者对患者来说很难维持。因此,任何牙周外科手术都应尽量减少软组织的损失。用手术刀进行牙周治疗会引起疼痛、术后水肿、瘢痕,并导致术后软组织丢失。因此,需要一种既能有效地进行牙周手术,又能使软组织损失最小的工具。在这方面,软组织二极管激光器是最合适的工具。它可以非常方便地用于系带切除术、牙龈切除术、前庭成形术、牙龈切除术、牙龈脱色术和二期种植手术。本文强调二极管激光是口腔软组织手术的理想仪器。
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引用次数: 3
Retraction: Effectiveness of 904 nm gallium arsenide diode laser in treatment of oral lichen planus: Report of two cases 撤回:904 nm砷化镓二极管激光治疗口腔扁平苔藓2例疗效报告
Pub Date : 2016-01-01 DOI: 10.4103/0976-2868.172186
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引用次数: 0
期刊
Journal of Dental Lasers
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