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Apical extrusion of root canal filling material during the removal of gutta-percha and resilon 杜仲胶和弹性树脂拔除时根管充填材料的根尖挤压
Pub Date : 1900-01-01 DOI: 10.2298/sgs2002091v
Karolina Vukoje, I. Stojšin, I. Kantardzic, O. Janković
Introduction. Root canal filling material may be extruded during retreatment through the apical foramen and cause flare-up or chronic infection. The aim of this study was to compare the apical extrusion of gutta-percha and resilon filling materials during retreatment using hand and rotary instruments. Methods. Sixty extracted single-rooted teeth with single, straight canal were selected. Canals were prepared with ProTaper Universal rotary system to a size F2. Two groups (30 teeth in each) were filled with gutta-percha or resilon points, respectively. In both groups teeth were randomly divided into the three subgroups (10 teeth in each), based on the instruments used for retreatment: Hedstrom hand files and two rotary groups- ProTaper and Twisted File instruments. Apical extrusion was detected visually, using a 4-degree scoring system. Mean scores were calculated and analyzed statistically (t-test and ANOVA). The level of significance was set at p < 0.05. Results. Under tested experimental conditions, the type of canal filling material did not have significant effect on the results of apical extrusion during retreatment. Significantly more material was extruded in the resilon group when manual, Hedstrom file was used (1.80 ? 1.13) than rotary ProTaper (0.60 ? 0.70) and Twisted File (0.50 ? 0.71). Conclusions. The use of a rotary technique is recomended to minimize apical extrusion, especially when resilon obturation material is removed during retreatment.
介绍。再治疗时,根管填充物可能通过根尖孔被挤出,引起急性发作或慢性感染。本研究的目的是比较杜仲胶和弹性填充材料在手工和旋转器械再处理时的根尖挤压。方法。选择拔除的单根牙60颗,采用单根直管。采用ProTaper万能旋转系统制备根管,根管尺寸为F2。两组(每组30颗牙齿)分别用杜仲胶或弹性胶填充。根据再治疗使用的器械,两组牙随机分为三个亚组(每组10颗牙):Hedstrom手锉和两个旋转组- ProTaper和Twisted File器械。采用4度评分系统目视检测根尖挤压。计算平均得分并进行统计学分析(t检验和方差分析)。p < 0.05为显著性水平。结果。在试验条件下,根管填充材料的类型对再治疗时根尖挤压的结果没有显著影响。使用手动Hedstrom锉(1.80 ?1.13)比旋转ProTaper (0.60 ?0.70)和Twisted File (0.50 ?0.71)。结论。推荐使用旋转技术,以尽量减少根尖挤压,特别是在再治疗过程中移除弹性封堵材料时。
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引用次数: 0
The flow rate of endodontic sealers in various consistencies 不同浓度根管封闭剂的流速
Pub Date : 1900-01-01 DOI: 10.2298/sgs2001027i
V. Ilic, R. Petrović, B. Dzeletovic, D. Ilić
Introduction. The flow of endodontic sealer (ES) is the property that characterizes its velocity along the certain surface and depends on the friction force. The aim of this research was to measure the flow rate of three zinc oxide eugenol based ES?s in various consistencies exposed to the load of 2 kg. Material and methods. The experimental group included prepared samples of sealers protocoled by ADA specification No. 57 A) Endomethasone N in liquid:powder ratio of 1:5, 1:6, 1:7 (standard), 1:8 and 1:9 according to the manufacturer brochure depending on the clinical situation; B) Roth 801 as 1:7 (standard) and 1:8 mixtures C) Tubliseal EWT as standard preparation (base-catalyst 1:1). A volume of 0.05 ml sealer was spread on the glass plate and upon applying the load of 2 kg the diameter of sealer was measured. In the control group the sealer samples were loaded only by the weight of glass plate (0.1kg). Results. Based on measured diameters of sealers, all of them satisfied ADA requirements for the flow (d>20mm) (Endomethasone - 20.7-27.8 mm; Roth 801- 29.6-30.0 mm; Tubliseal -39.9 mm). The thin consistency of sealers (1:5, 1:6) showed significantly higher flow than standard mixture (1:7) (p < 0.05). Conclusion. Tubliseal EWT sealer showed the highest flow rate, significantly different than standard mixtures (1:7) of Endomethasone N and Roth 801.
介绍。牙髓密封剂(ES)的流动特性是表征其沿一定表面的速度,并取决于摩擦力。本研究的目的是测量三种氧化锌丁香酚基ES?不同浓度的S暴露在2kg的负荷下。材料和方法。实验组:根据临床情况,根据生产厂家说明书,采用美国药典规范No. 57 A .制备的密封剂样品,液粉比分别为1:5、1:6、1:7(标准)、1:8、1:9;B) Roth 801为1:7(标准)和1:8混合物C) Tubliseal EWT为标准制剂(碱-催化剂1:1)在玻璃板上铺上体积为0.05 ml的封口剂,施加2kg的载荷后测量封口剂的直径。对照组仅以玻璃板的重量(0.1kg)装载封口机样品。结果。根据测量的密封剂直径,它们都满足ADA对流量的要求(d>20mm)(内多米松- 20.7-27.8 mm;罗斯801- 29.6-30.0毫米;管状-39.9毫米)。薄稠度为1:5、1:6的密闭剂流量显著高于标准混合液(1:7)(p < 0.05)。结论。Tubliseal EWT封口剂的流量最高,显著高于Endomethasone N和Roth 801的标准混合物(1:7)。
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引用次数: 0
Edentulism in the elderly in Montenegro 黑山老年人的牙髓主义
Pub Date : 1900-01-01 DOI: 10.2298/sgs2002083p
Z. Popović
Introduction. For the first time in Montenegro, a survey was conducted to examine the oral health status of the elderly. Materials and methods. The study included 170 subjects of both genders, average age 72.32 ? 6.85 years. The research methodology was in line with the WHO methodological guidelines for epidemiological studies of national oral pathology. For statistical analysis of data IBM STATISTICS 20 was used. Descriptive and inferential statistical methods, Tamhane T2 post hoc tests, ?2 test were applied. The homogeneity of the dispersions was checked by the Leven test. The significance level was set to 0.05. Results. The DMFT value was 29.417 ? 3.81 (MT: 26.25 ? 6.95; FT: 2.68 ? 3.98; DT: 0.63 ? 1.56) and it was significantly higher in women, smokers and people who did not visit the dentist regularly. The percentage of edentulous persons was 46.47%. The index of dental rehabilitation - IRD was 73.86%. The average age of dentures was 11 years. Conclusion. The state of oral health of the elderly in Montenegro is not at satisfactory level, which is reflected in the high percentage of edentulous people and unfavorable structure of DMFT.
介绍。在黑山首次进行了一项调查,以检查老年人的口腔健康状况。材料和方法。该研究包括170名男女受试者,平均年龄为72.32岁。6.85年。研究方法符合世卫组织关于国家口腔病理学流行病学研究的方法学指南。使用IBM STATISTICS 20对数据进行统计分析。采用描述性和推断性统计方法、Tamhane T2事后检验、2检验。用Leven试验检验了分散体的均匀性。显著性水平设为0.05。结果。DMFT值为29.417 ?3.81(马太福音:26.25 ?)6.95;Ft: 2.68 ?3.98;Dt: 0.63 ?1.56),而在女性、吸烟者和不定期看牙医的人群中,这一比例明显更高。无牙者占46.47%。口腔康复指数- IRD为73.86%。假牙的平均年龄为11岁。结论。黑山老年人的口腔健康状况并不令人满意,这反映在无牙人口比例高和DMFT结构不利上。
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引用次数: 0
Stability and solubility test of endodontic materials 根管材料的稳定性和溶解度试验
Pub Date : 1900-01-01 DOI: 10.2298/sgs2204169m
Ivan Matović, J. Vucetic
Introduction. Good physicochemical properties of endodontic materials are one of the main preconditions for successful endodontic treatment. Modern endodontic materials are expected to have good adhesiveness, stability and low solubility in order to enable high-quality and permanent obturation of the root canal. The aim of this study was to test in vitro the stability and degree of solubility of two endodontic materials: Mineral Trioxide Aggregate (MTA) and Gutta Flow. Materials and methods. The solubility of endodontic materials Mineral Trioxide Aggregate - MTA (Angelus) and Gutta Flow (Colthane) was tested by the aging method using artificial saliva according to the prescription of Ira and Shannon. Twelve samples of single-rooted teeth (6 MTA, 6 Gutta Flow) were used. The samples were analyzed after 7, 14, 21, 28 and 35 days. After obturation, the samples were longitudinally cut and filled with auto-polymerizing acrylate and stored in artificial saliva at a temperature of 37? ?} 2? C. Results. The results of the analysis of the longitudinal sections of the roots through MTA and Gutta Flow showed the absence of damage to both endodontic materials after 14 days of exposure to the artificial saliva. The appearance of the first morphological damage, as well as the weakening of the bonding with dentin wall, were observed on the 21st day with Gutta Flow, and on the 28th day with MTA from the beginning of the experiment. After a period of 35 days, both materials showed increased porosity, solubility and breaking of the bond with dentin wall of the root canal. Conclusion. Based on the obtained results, it can be concluded that MTA showed lower solubility and better adhesiveness with dentin wall of the tooth root canal than Gutta Flow.
介绍。牙髓材料良好的理化性能是牙髓治疗成功的主要前提之一。现代根管材料应具有良好的粘连性、稳定性和低溶解度,以实现高质量和永久的根管封闭。本研究的目的是在体外测试两种根管材料:矿物三氧化物聚集体(MTA)和Gutta Flow的稳定性和溶解度。材料和方法。根据Ira和Shannon的处方,采用人工唾液老化法测定了根管材料Mineral Trioxide Aggregate - MTA (Angelus)和Gutta Flow (Colthane)的溶解度。使用单根牙12颗(MTA 6颗,Gutta Flow 6颗)。分别于第7、14、21、28、35天进行分析。封闭后,纵向切割样品,填充自聚合丙烯酸酯,并在37℃的温度下储存在人工唾液中。} 2 ?c的结果。通过MTA和Gutta Flow对牙根纵切面的分析结果显示,暴露于人工唾液14天后,两种根管材料均未受到损伤。Gutta Flow和MTA分别在实验开始的第21天和第28天观察到第一次形态学损伤的出现,以及与牙本质壁结合的减弱。35天后,两种材料的孔隙度、溶解度均有所增加,且与根管牙本质壁的结合断裂。结论。综上所述,与Gutta Flow相比,MTA具有较低的溶解度和较好的与牙本质管壁的粘附性。
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引用次数: 0
Efficacy of removing calcium hydroxide deposits from endodontic instruments prior to sterilization using different cleaning methods 使用不同清洁方法去除消毒前根管器械上氢氧化钙沉积物的效果
Pub Date : 1900-01-01 DOI: 10.2298/sgs2301007p
J. Popović, Marija Nikolić, A. Mitić, Nenad Stošić, Radomir Barac, Antonije Stankovic, Aleksandra Milovanović
Introduction. Endodontic instruments during root canal treatment come into contact with dentinal debris, irrigation solutions and medication agents, which reminants should be eliminated before sterilization. The aim of the study was to verify the effectiveness of different cleaning methods for removing calcium hydroxide paste residues from the surfaces of the working parts of hand instruments, as well as to propose an effective protocol for cleaning endodontic instruments before sterilization. Material and methods. Forty-two new hand endodontic instruments were used to remove calcium hydroxide paste from the filled canals of extracted teeth. After contamination with medication, they were divided into the four groups and subjected to individual decontamination methods - mechanical, chemical and ultrasonic, as well as a combined protocol. The instruments were then observed under a light microscope. The effectiveness of the methods was evaluated based on the amount of residual matter on the surface of the working parts of the instruments. Results. The combined protocol showed a statistically significant difference in the achieved level of cleanliness compared to mechanical (?2 = 12.00 p < 0.05) and chemical methods (?2 = 12.00 p < 0.05), but there was no statistically significant difference compared to ultrasonic cleaning in disinfectant solution (?2 = 2.4 p > 0.05). By applying combined protocol, instruments with completely clean surfaces were found, as well as the lowest values of contamination at the level of the entire group of instruments (8.33%). Conclusion. The protocol that consisted of mechanical cleaning with a sponge soaked in chlorhexidine gluconate, chemical soaking in sodium hypochlorite, and ultrasonic cleaning in a disinfectant showed the best efficiency in removing calcium hydroxide residues.
介绍。根管治疗过程中,根管器械会接触到牙本质碎片、冲洗液和药物,在消毒前应清除残留物。本研究的目的是验证不同的清洁方法对去除手工器械工作部件表面氢氧化钙膏体残留物的有效性,并提出一种有效的根管器械灭菌前清洁方案。材料和方法。使用42个新的手根管器械将氢氧化钙膏从拔牙后填充的根管中去除。在被药物污染后,他们被分成四组,并接受单独的净化方法——机械、化学和超声波,以及综合方案。然后在光学显微镜下观察这些仪器。根据仪器工作部件表面残留物质的数量来评估方法的有效性。结果。联合方案显示,与机械(?2 = 12.00 p < 0.05)和化学方法(?2 = 12.00 p < 0.05),但与消毒液超声清洗(?2 = 2.4 p > 0.05)。采用联合方案,发现仪器表面完全清洁,整个组仪器水平的污染值最低(8.33%)。结论。用海绵浸泡葡萄糖酸氯己定进行机械清洗,用次氯酸钠进行化学浸泡,用消毒剂进行超声波清洗,去除氢氧化钙残留物的效果最好。
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引用次数: 0
The role of tag questions in medical encounters 附加疑问句在医学接触中的作用
Pub Date : 1900-01-01 DOI: 10.2298/SGS2004208S
D. Sinadinović
The discourse of medical encounters is deemed to be an excellent example of both institutional talk and discourse of power. Asking questions is probably the most prominent characteristic of doctor- patient interaction and this paper deals with tag questions as one of the question types that can be found in almost every medical encounter. We will explore tag questions by reviewing current research results in the field of medical discourse and by comparing and discussing examples from transcribed medical encounters in English and Serbian. It will be discussed how often tag questions are used in both corpora, whether doctors and patients use them in the same way and what role these questions have in a medical encounter. Finally, having in mind that getting to ask any question in institutional talk requires a certain amount of power, we will also try to determine if using tag questions affects doctor and patient?s positions in a medical encounter.
医疗遭遇的话语被认为是制度话语和权力话语的一个很好的例子。提问可能是医患互动中最突出的特征,本文讨论的标签问句是几乎在每一次医疗接触中都能找到的问题类型之一。我们将通过回顾医学话语领域的当前研究成果,并通过比较和讨论来自英语和塞尔维亚语转录的医学遭遇的例子来探索标记问题。我们将讨论标签疑问句在两个语料库中使用的频率,医生和患者是否以相同的方式使用它们,以及这些问题在医疗遇到中的作用。最后,考虑到在机构谈话中提出任何问题都需要一定的权力,我们还将尝试确定使用附加疑问句是否会影响医生和病人?医疗事故中的S位。
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引用次数: 0
Oral manifestation of ulcerative colitis 溃疡性结肠炎的口腔表现
Pub Date : 1900-01-01 DOI: 10.2298/sgs2202089d
Aleksa Djurickovic, Mirjana Djuricković
Introduction. Ulcerative colitis is an inflammatory bowel disease. Primary involvement is the colon. Changes in the oral cavity may occur as the part of extraintestinal manifestations of the disease. Most common are aphthous ulcers, angular cheilitis and pyostomatitis vegetans which is a specific marker of ulcerative colitis. Case report. This case describes a 53-year-old patient who developed oral lesions as the part of ulcerative colitis. The patient was without symptoms of ulcerative colitis at the time of reporting to the dentist. After a few days, ulcerative colitis activated. Conclusion. Changes that occur in the oral cavity may precede intestinal. It is very important that a dentist recognizes such changes and refers the patient to a gastroenterologist.
介绍。溃疡性结肠炎是一种炎症性肠病。主要受累部位为结肠。口腔的改变可能是该疾病肠外表现的一部分。最常见的是口腔溃疡,角状口唇炎和植物性脓口炎,这是溃疡性结肠炎的特殊标志。病例报告。这个病例描述了一个53岁的病人谁发展的口腔病变溃疡性结肠炎的一部分。在向牙医报告时,患者没有溃疡性结肠炎的症状。几天后,溃疡性结肠炎发作。结论。发生在口腔的变化可能先于肠道。牙医认识到这种变化并将患者转介给胃肠病学家是非常重要的。
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引用次数: 0
Multidisciplinary approach in the rehabilitation of partial edentulousness - adjunctive orthodontic and subsequent prosthodontic treatment 多学科方法在部分无牙康复-辅助正畸和随后的修复治疗
Pub Date : 1900-01-01 DOI: 10.2298/sgs2201031s
Irma Secerbegovic-Srna, V. Biočanin
Introduction. Malocclusions in partially edentulous patients represent a special rehabilitation challenge in dentistry. In patients who, in addition to orthodontic problem, also have a certain number of missing teeth, it is necessary to approach in a multidisciplinary manner. This approach implies a synergy of conservative, orthodontic and prosthetic treatment. The aim of this paper was to present a patient with partial edentulism including upper left canine palatally located that was successfully rehabilitated with orthodontic and subsequent fixed prosthodontic treatment. Case report. The clinical examination of the 24-year-old patient was followed by additional orthodontic analysis that included analysis of study models, X-rays, and photographs. The patient was found to have ectopic teeth 13 and 23, reverse overbite of the tooth 12, and tooth 26 was extracted in childhood. Due to the prevalence of carious lesions and tooth destruction, the attending dentist planned extraction of teeth 16, 14, 24, 25. It was decided to conduct adjunctive orthodontic treatment in order to achieve tooth levelling and move teeth to the positions planned in the previous analysis. After completion of orthodontic treatment, fixed prosthodontic work was done to achieve complete functional and aesthetic rehabilitation.
介绍。部分无牙患者的错牙合是牙科康复的一个特殊挑战。对于除正畸问题外,还存在一定数量缺牙的患者,需要多学科联合就诊。这种方法意味着保守,正畸和假体治疗的协同作用。本文的目的是介绍一个病人部分全牙症包括上左犬齿腭位,成功地恢复正畸和随后的固定修复治疗。病例报告。对这名24岁的患者进行临床检查后,进行了额外的正畸分析,包括分析研究模型、x光片和照片。患者13、23号牙异位,12号牙反向覆咬,26号牙幼年拔除。由于龋齿的流行和牙齿的破坏,主治牙医计划拔牙16,14,24,25。我们决定进行辅助正畸治疗,以达到牙齿水平,并将牙齿移动到前面分析中计划的位置。正畸治疗完成后,进行固定修复工作,实现功能和美观的完全康复。
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引用次数: 0
Immediate complete denture: A case report 即刻全口义齿1例报告
Pub Date : 1900-01-01 DOI: 10.2298/sgs2203132t
Ljiljana Tihacek-Sojic, Luka Zupac, Minja Milicic-Lazic
An immediate denture is a temporary or permanent removable denture fabricated in the presence of natural teeth. Patients diagnosed with periodontitis are usually indicated for this type of dentures. Fabrication according to the specific protocol can enhance functional, phonetic, and aesthetic rehabilitation immediately after tooth extraction. Laboratory procedures have few specificities in comparison to conventional complete dentures, but the most important one is trimming the cast according to previously examined periodontal status. Following the production protocol, it is possible to provide functional, phonetic and aesthetic rehabilitation of the patient immediately after tooth extraction. In addition, it is possible to achieve proper remodeling of the residual alveolar ridge owing to the direct contact of the denture base with the extraction wound during the consolidation period. The aim of this paper is to present clinical and laboratory procedures in the process of making immediate complete denture.
即时义齿是在天然牙齿存在的情况下制造的临时或永久可移动义齿。诊断为牙周炎的患者通常需要使用这种类型的假牙。根据特定的方案制作可以在拔牙后立即增强功能,语音和美学的康复。与传统的全口义齿相比,实验室程序几乎没有特异性,但最重要的是根据先前检查的牙周状况修剪铸型。根据生产方案,可以在拔牙后立即为患者提供功能,语音和美学康复。此外,由于义齿基托与拔牙创面在巩固期直接接触,残牙槽嵴有可能实现适当的重塑。本文的目的是介绍在制作即时全口义齿过程中的临床和实验室程序。
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引用次数: 0
Biochemical markers in saliva in patients with oral cancer 口腔癌患者唾液中的生化标志物
Pub Date : 1900-01-01 DOI: 10.2298/SGS2004201A
Biljana Andjelski-Radičević, I. Dozic
Head and neck cancers account for 3% of all human cancers and are mainly localized in the oral cavity. Early detection of cancer is extremely important for reducing mortality and morbidity from this disease. In addition to clinical trials and histopathological findings, in the last two decades, with technological development, more specific and sensitive methods have been used in the analysis of salivary markers. The aim of this study was to present a wide range of analyzed markers in saliva: different protein markers (total proteins, albumin, defensins, staterin, cystatins), epithelial and molecular markers (CA125, CA19-9, TPA, CEA, CYFRA 21-1, CD44), enzymes (LDH, ALP, MMP, SOD), cytokines (IL-6, IL-8, IL-1?, TNF-?), oxidative stress markers (8-OHdG, MDA), non-enzymatic antioxidants (glutathione, uric acid, albumin, vitamin C and E) etc. Collecting saliva is simple and painless for the patient, it does not require expensive equipment or specially trained staff, and it is possible to take saliva several times and in unlimited quantities. Extensive research that is increasingly being done with modern techniques indicates that saliva may be useful for early detection of the disease in the near future.
头颈部癌症占所有人类癌症的3%,主要局限于口腔。癌症的早期发现对于降低这种疾病的死亡率和发病率极为重要。除了临床试验和组织病理学发现,在过去的二十年中,随着技术的发展,更多的特异性和敏感性的方法已被用于分析唾液标志物。本研究的目的是分析唾液中广泛的标记:不同的蛋白质标记(总蛋白、白蛋白、防御素、他汀素、胱他汀素)、上皮和分子标记(CA125、CA19-9、TPA、CEA、CYFRA 21-1、CD44)、酶(LDH、ALP、MMP、SOD)、细胞因子(IL-6、IL-8、IL-1?(TNF-?)、氧化应激标志物(8-OHdG、MDA)、非酶抗氧化剂(谷胱甘肽、尿酸、白蛋白、维生素C和E)等。收集唾液对病人来说简单无痛,不需要昂贵的设备或经过专门培训的工作人员,而且可以多次无限量地采集唾液。越来越多使用现代技术进行的广泛研究表明,在不久的将来,唾液可能有助于早期发现这种疾病。
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引用次数: 0
期刊
Serbian Dental Journal
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