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Study about mechano-chemical gingival displacement with single-cord technique. 单索法机械-化学牙龈移位的研究。
Pub Date : 2020-12-01 DOI: 10.2478/asmj-2020-0011
K. Jánosi, Diana Cerghizan, S. Fulop, Szidónia Molnár, M. Baloș
Abstract Introduction: Besides abutment preparation, the impression is essential in order to achieve an esthetical and functional prosthetic restoration. Proper gingival displacement and abutment finish line exposure is crucial for the proper impression technique. The study aims are to investigate the vertical gingival displacement and if the free gingival margin returns to its original position after seven days by using a retraction cord impregnated with different chemical substances. Materials and method: Our clinical study evaluated on digital photos the modification of the healthy, free gingival margin position on the labial surface of two upper central incisors in the same female patient during the sulcus enlargement with the mechano-chemical method. Results: Statistically significant differences were obtained by comparing the mean values of vertical gingival displacement obtained using a non-impregnated and an impregnated retraction cord with different chemical at each time of the measurements. Conclusion: The mechano-chemical technique is an efficient method for gingival displacement regardless the impregnating solution used.
摘要简介:除了基台准备,印模是必不可少的,以实现美观和功能修复义肢。正确的牙龈位移和基牙终点线暴露对于正确的印模技术至关重要。本研究的目的是用不同化学物质浸透的牵张索,观察牙龈的垂直位移和游离龈缘在7天后是否恢复到原来的位置。材料与方法:本临床研究在数码照片上评价了机械化学法对同一例女性上中切牙龈沟扩大过程中健康游离龈缘在唇面位置的改变。结果:不同化学成分的浸渍和未浸渍牵索每次测量的牙龈垂直位移平均值比较,差异有统计学意义。结论:无论采用何种浸渍液,机械化学技术都是一种有效的牙龈移位方法。
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引用次数: 1
Evaluation of the correlation between impacted canine and malocclusions 阻生犬与错牙合相关性的评价
Pub Date : 2020-06-01 DOI: 10.2478/asmj-2020-0005
S. Pop, L. Contac, Andrei Ghiman, D. Moldovan, V. Suciu, Janos Kantor, D. Bratu, S. Buduru
Abstract Introduction: Tooth impaction is defined as the absence of a tooth on the arch, after its normal eruption age. The main reason canines are impacted is the lack of space required for the tooth to erupt. Aim of study: The main objective of this study is to determine the types of malocclusions associated with canine impaction (Lindauer classification). A secondary objective is to establish the correlation between these parameters and identification of subjects with high risk of canine impaction based on pre-existing malocclusion. Material and methods: This study was performed on a sample of 20 patients, 9 men and 11 women. The dental casts were subject to Angle classification and various measurements such as arch perimeter, Pont’s index, sum of the mesiodistal width of the incisor and arch length were performed. The Lindauer sectorial classification was determined based on the patients’ panoramic radiography. Results: According to the data collected, the Class II /2 malocclusion is more frequent, and it is associated with the impacted canine (approximately 50%). According to the Lindauer classification higher frequency of the impacted canines was found in Sector IV. Conclusion: The diagnosis for impacted canines is often associated with Class II /2 malocclusion, and according to the Sector classification, it is often localised in Sector IV.
摘要简介:牙嵌塞的定义是牙弓上牙齿的缺失,超过其正常的出牙年龄。犬科动物受影响的主要原因是牙齿长出所需的空间不足。研究目的:本研究的主要目的是确定与犬嵌塞相关的错咬合类型(Lindauer分类)。第二个目标是建立这些参数与基于先前存在的错颌嵌塞高风险受试者的识别之间的相关性。材料与方法:本研究共纳入20例患者,其中男9例,女11例。对牙模进行角度分类,测量牙弓周长、庞氏指数、切牙近远端宽度和牙弓长度之和。根据患者的全景x线片确定Lindauer扇形分类。结果:根据所收集的资料,II /2类错牙合发生率较高,且与阻生犬齿相关(约占50%)。根据Lindauer分类,阻生犬在IV区出现的频率较高。结论:阻生犬的诊断通常与II /2类错颌合有关,根据扇区分类,通常局限于IV区。
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引用次数: 2
In vitro study about the abutment axial wall’s convergence 基台轴壁收敛的体外研究
Pub Date : 2020-06-01 DOI: 10.2478/asmj-2020-0004
Diana Cerghizan, Adriana-Elena Crăciun, A. Albu, M. Baloș, K. Jánosi
Abstract Introduction: The total convergence of the axial walls is the angle made between the opposing axial walls of an abutment. The lower the taper value, the better the retention of the crowns is. Obtaining a proper convergence of the axial wall is a challenge for dental practitioners due to limited access and low visibility, but it also greatly depends on the clinician’s practical skills. This study aims to compare the total convergence of axial walls obtained after tooth preparation done by different experience practitioners in various positions of the patient and different working time (different days of the week, various parts of the day). Materials and methods: To perform this study, 40 acrylate model teeth have been prepared by two last year dental students and two prosthetists. All of them performed two teeth preparations per day in every working day of a week. All the prepared teeth have been photographed, and digitally measured. Results: The extremely statistically significant difference was found in the two beginners’ case, the values of the second beginner being much higher, as in the two experienced operators, where the values are higher for the second prosthetist. Conclusion: The total convergence of the axial wall did not depend on the operators’ experience or education level.
摘要导言:轴墙的总辐合是指桥台相对的轴墙之间的夹角。锥度值越小,冠的固位效果越好。由于通道有限和能见度低,获得轴壁的适当收敛对牙科医生来说是一个挑战,但这也很大程度上取决于临床医生的实践技能。本研究旨在比较不同经验的医师在患者不同体位、不同工作时间(一周中的不同天数、一天中的不同时段)进行牙齿准备后所获得的轴向壁总收敛度。材料和方法:为了进行这项研究,两名去年的牙科学生和两名修复师准备了40颗丙烯酸酯模型牙齿。所有患者均于每周每个工作日每日进行两次牙齿预备。所有准备好的牙齿都已拍照,并进行了数字测量。结果:在两个初学者的情况下发现了极具统计学意义的差异,第二个初学者的值要高得多,因为在两个经验丰富的操作人员中,第二个假体的值更高。结论:轴壁的总会聚与操作者的经验和教育水平无关。
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引用次数: 1
Endo-perio lesions: diagnosis and interdisciplinary treatment options 腹膜内病变:诊断和跨学科治疗方案
Pub Date : 2020-06-01 DOI: 10.2478/asmj-2020-0002
Timea Dakó, A. Lazar, C. Bică, L. Lazăr
Abstract About 50% of tooth loss is caused by either endodontic infection, periodontal disease or the combination of the two in the form on endo-perio lesions (EPL). Combined EPL develop due to the intimate anatomic and functional relation between endodontic and periodontal tissues. Both the pulp and periodontium share the same embryologic and anatomic origin. The various pathways connecting the two, added up to the extremely alike microorganisms in both illnesses’ etiology, create a complex condition in which interdisciplinary approach is required. Despite numerous decades of literature describing these lesions, they remain a continuous challenge for practitioners in both diagnosing and managing. The purpose of this article is to present a comprehensive review of various aspects of the combined EPL and to emphasize the importance of making a correct diagnosis and adopting the appropriate treatment method in the management of these challenging situations.
约50%的牙齿脱落是由牙髓感染、牙周病或两者结合引起的,表现为牙周内病变(EPL)。由于牙髓组织与牙周组织在解剖和功能上的密切联系,导致了合并牙周病的发展。牙髓和牙周组织具有相同的胚胎学和解剖学起源。连接两者的各种途径,加上两种疾病病因中极其相似的微生物,创造了一个复杂的条件,需要跨学科的方法。尽管有数十年的文献描述了这些病变,但它们仍然是从业者在诊断和管理方面的持续挑战。本文的目的是对联合EPL的各个方面进行全面的回顾,并强调在这些具有挑战性的情况下做出正确诊断和采用适当治疗方法的重要性。
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引用次数: 3
Self-reported tooth and implant prognosis evaluation based on radiographic bone loss: a cross sectional study 基于x线骨丢失的自我报告牙齿和种植体预后评估:一项横断面研究
Pub Date : 2020-06-01 DOI: 10.2478/asmj-2020-0003
D. Clark-Perry, Jaimie Baybrook, R. Catunda, L. Levin
Abstract Introduction: Tooth prognosis evaluation involves continual assessments to guide patient-centered treatment plans. This means that the tooth prognosis may dictate whether a tooth is restored, extracted, or maintained. Aim of study: The aim of this work was to evaluate current trends in tooth prognosis evaluation based on radiographic bone loss amongst dental practitioners. Material and Methods: A survey including demographic questions and ten radiographs (vertical bitewings or peri-apical) showing bone loss around teeth and implants were distributed to dental practitioners. Practitioners were asked to determine the prognosis of the tooth or implant and suggest a percentage describing the likelihood of the tooth or implant surviving for ten years. Results: One of the ten radiographs provided for assessment was given good to fair prognosis by 100% of the participants. Only three out of the ten radiographs presented had strong suggestions for tooth retention. Recommendation for extraction by dental practitioners varied from 1-66% across the radiographs. Furthermore, practitioners predicted a 0% chance of ten-year survival for many of the teeth. Conclusions: Assessing prognosis based on radiographs only, is insufficient and clinical data provides invaluable information to establishing tooth prognosis. Dental professionals should understand that compromised teeth can outlive dental implants and our role as dental professionals is to prevent and treat oral diseases to preserve the dentition as long as possible.
摘要简介:牙齿预后评估包括持续评估,以指导以患者为中心的治疗计划。这意味着牙齿的预后可以决定牙齿是否被修复、拔出或维持。研究目的:本研究的目的是评估目前牙科医生基于放射学骨质流失的牙齿预后评估趋势。材料和方法:一项调查包括人口统计问题和十张显示牙齿和种植体周围骨质流失的x线片(垂直咬翼或根尖周围)分发给牙科医生。从业人员被要求确定牙齿或种植体的预后,并建议描述牙齿或种植体存活十年的可能性的百分比。结果:提供评估的10张x线片中有1张被100%的参与者给予良好到一般的预后。10张x线片中只有3张强烈建议保留牙齿。牙科医生的拔除建议在不同的x光片上从1-66%不等。此外,从业人员预测许多牙齿十年存活的机会为0%。结论:仅根据x线片评估预后是不充分的,临床数据为建立牙齿预后提供了宝贵的信息。牙科专业人员应该明白,受损的牙齿可能比种植牙更长寿,作为牙科专业人员,我们的角色是预防和治疗口腔疾病,以尽可能长时间地保护牙齿。
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引用次数: 0
Light technology potential in reducing secondary infections in the dental office 光技术在减少牙科诊所继发感染方面的潜力
Pub Date : 2020-06-01 DOI: 10.2478/asmj-2020-0001
E. S. Bechir
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引用次数: 0
Rehabilitation of the frontal teeth with palatal veneers by using T-Scan occlusal analysis - case report 用t -扫描分析腭贴面修复额牙的咬合效果- 1例报告
Pub Date : 2020-06-01 DOI: 10.2478/asmj-2020-0006
K. Jánosi, A. Albu, Adriana-Elena Crăciun, Diana Cerghizan
Abstract Pathological tooth wear occurs in young patients. The rehabilitation of these teeth must be performed accurately, considering the occlusal relationships and the correct distribution of the masticatory forces. The therapeutic approach must be as minimally invasive as possible. In this case presentation, six palatal veneers were realized for the aesthetic and functional rehabilitation of a young patient’s upper frontal teeth. The restorations were made on refractory casts, from feldspathic ceramics, allowing a proper esthetic. The occlusal rehabilitation involves the mounting of the casts in a semi-adjustable articulator. The six veneers were adapted functionally by using the Bio-Art A7 Plus articulator. Due to the adhesive techniques and the existing interocclusal space at this level, the teeth’s preparation was limited to the enamel. The deep chamfer was placed equigingivally. During the try-in of the restorations, the esthetic evaluation was done. The adhesive technique was used to bond the veneers to the tooth surfaces. After the cementation, the esthetical results were evaluated. During the prosthodontic treatment, T-Scan III digital analysis was performed to detect occlusal problems, to establish the treatment directions, and to evaluate the results. Conclusions: The use of the adhesively bonded feldspathic palatal veneers allows a successful esthetic and functional rehabilitation. The digital occlusal analysis, realized using the T-Scan system, improves the prosthodontic treatment quality and durability.
病理性牙齿磨损常见于年轻患者。考虑到咬合关系和咀嚼力的正确分布,必须准确地进行这些牙齿的康复。治疗方法必须尽可能做到微创。在这个案例中,六个腭贴面实现了审美和功能康复的年轻患者的上门牙。修复是由长石陶瓷制成的耐火铸件,使其具有适当的美感。咬合康复包括在半可调关节器中安装铸型。使用Bio-Art A7 Plus关节器对六个贴面进行功能调整。由于粘接剂技术的限制和牙合间隙的存在,牙齿的准备仅限于牙釉质。深槽是等距放置的。在修复体的试入过程中,对修复体进行了美学评价。采用粘接技术将贴面与牙齿表面粘接。胶结后评价美观效果。修复治疗过程中进行T-Scan III数字分析,发现咬合问题,确定治疗方向,并对结果进行评价。结论:粘接长石腭贴面的使用可以成功地实现美观和功能的恢复。利用T-Scan系统实现的数字咬合分析,提高了修复治疗的质量和耐久性。
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引用次数: 1
The role of carious lesions in the occurrence of pathological modifications in deep periodontal level – radiographic evaluation 龋损在深牙周水平病理改变发生中的作用-影像学评价
Pub Date : 2019-12-01 DOI: 10.2478/asmj-2019-0008
A. Lazar, A. Vlasa, Bukhari Csilla, Buka Imola, L. Lazăr
Abstract In the etiology of periodontal disease, dental caries act as a favoring factor. The purpose of our study was to evaluate the role of untreated or incorrectly treated carious lesions in the occurrence of pathological changes in the periodontal support. Material and methods: In order to evaluate the impact of the dental caries in the appearance of destructive lesions at the periodontal level, we examined 378 X-rays. The radiographies were selected based on the presence of approximal dental cavities, untreated or incorrectly treated and we appreciated the association of these factors with the presence and the level of bone resorption of the interdental septum. Results: On the 378 radiographies we examined, it was discovered the presence of 398 approximal carious lesions, of which 146 were associated with bone resorption. The examined radiographies permitted us to evaluate 1512 fillings inserted in second class cavities, of which 1103 were correctly done, and 309 were incorrect and associated with bone resorption phenomena. Incorrectly done restorations were associated with bone resorption phenomena due to the lack of contact with the adjacent tooth for 213 of these, and because of an inaccurate adaptation at the level of the gingival threshold for 96. Conclusions: The dentist has to pay a special attention to the approximal coronary restorations because these can favor the retention of bacterial plaque and, in most cases, can lead to bone loos in the alveolar ridge area.
摘要在牙周病的病因学中,龋齿是一个有利因素。我们的研究目的是评估未经治疗或不正确治疗的龋齿病变在牙周支持发生病理变化中的作用。材料和方法:为了评估龋齿对牙周水平破坏性病变外观的影响,我们检查了378张x光片。x线片的选择是基于是否存在未治疗或治疗不当的近似蛀牙,我们很欣赏这些因素与牙间隔的存在和骨吸收水平的联系。结果:我们检查了378张x线片,发现398个近似龋齿病变,其中146个与骨吸收有关。通过检查x线片,我们评估了1512个第二类腔内的填充物,其中1103个是正确的,309个是不正确的,并且与骨吸收现象有关。不正确的修复与骨吸收现象有关,因为其中213例与邻近牙齿缺乏接触,96例由于牙龈阈值水平的不准确适应。结论:牙医师必须特别注意冠状动脉近端修复,因为这有利于细菌菌斑的保留,在大多数情况下,可能导致牙槽嵴区域的骨渗漏。
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引用次数: 0
Taking dental impressions of dental medicine students: with and without vomiting reflex 牙医学生牙印:有无呕吐反射
Pub Date : 2019-12-01 DOI: 10.2478/asmj-2019-0009
M. Cristina, Székely Melinda, T. Sirbu, Moldovan Iunia-Beatrice
Abstract Introduction: It is a well-known fact that during a dental impression, some patients suffer from the gag reflexes. Aim of the study: Even if the main tendency is to use medication, our goal is to find a way to combat it. Material and methods: With the help of our 155 volunteering students, from UMFST Târgu Mureș, who agreed on having their dental impression taken, using alginate material, we tried to combat the gag reflex, using the following techniques: the high-leg method, salt crystals, as well as using a special impression tray. Results: When we applied all of these methods, great attention was payed, as we diligently wrote everything down. After all the work was done, we obtained the following results: 130 did not show any vomiting signs, 17 of them presented moderate vomiting reflex and only 8 of them have shown extreme vomiting reflex, leading to the point where the impression could not be performed. Conclusions: On the one hand, for the less informed people, these techniques present a better outcome; on the other hand, however, we wish to highlight one thing: the skills of the doctor are of utmost importance.
摘要简介:这是一个众所周知的事实,在牙印模,一些患者遭受呕吐反射。研究目的:即使主要倾向是使用药物,我们的目标是找到一种方法来对抗它。材料和方法:在我们的155名志愿者学生的帮助下,他们同意使用海藻酸盐材料进行牙印模,我们尝试使用以下技术来对抗呕吐反射:高腿法,盐晶体,以及使用特殊的印模托盘。结果:当我们应用所有这些方法时,我们非常注意,因为我们努力地把所有的东西都写下来。所有工作完成后,我们得到了以下结果:130例患者没有任何呕吐迹象,其中17例出现中度呕吐反射,只有8例出现极端呕吐反射,导致无法进行印象。结论:一方面,对于信息较少的人来说,这些技术呈现出更好的结果;然而,另一方面,我们希望强调一件事:医生的技能是最重要的。
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引用次数: 0
Comparative study of the comfort in patients rehabilitated with three types of partial dentures 三种类型局部义齿修复患者舒适性的比较研究
Pub Date : 2019-12-01 DOI: 10.2478/asmj-2019-0010
F. Bechir, Ilinca Suciu
Abstract Introduction: At present, the researchers are targeted to improve and increase the biocompatibility of dental materials that are in direct contact with biological tissues. The biocompatibility of the dental materials that contact the tissues of the oral cavity present relevance for the patient, clinician, dental technician, and manufacturer. Aim of the study: The aim of this study was represented by the comparative research regarding the comfort of the patients wearing removable partial prostheses with clasps made of wire and flexible polymers. Material and Methods. Patients wearing partial dentures from Meliodent heat-cured acrylic resins with wipla wire clasps, flexible partial dentures made from Valplast and dentures with clasps of CuSil silicone rubber participated in this study. The research was performed on 3 groups, of 8 patients each, in which comfort levels (according to 5 criteria) were determined, after 6, 12, 18, respectively 24 months of the partial removable prostheses insertion in the oral cavity. Results. Presence of decubitus lesions of the oral mucosa in the clasps areas was noticed mostly in the Valplast polyamide dentures (37.5%), existence of color changes at the base of prostheses and of clasps area appeared in 37.5% of the third group (CuSil PAD) patients, no patient included in the study presented allergic reactions and at the third and fourth recall, only 1 patient of all groups complained of unpleasant taste in the oral cavity. Conclusion. The removable prosthetic restorations with clasps made of flexible polymers and CuSil gaskets of silicone rubber, although initially much more comfortable and therefore much better accepted by patients, after two years were no longer active, could not be activated and necessited technical restorations, compared to those made of wipla wire clasps, which were activated with pliers, or, in the case of fracture, were replaced by the technician in the dental laboratory.
摘要导读:目前,研究人员的目标是改善和增加与生物组织直接接触的牙科材料的生物相容性。与口腔组织接触的牙科材料的生物相容性对患者、临床医生、牙科技师和制造商都具有相关性。研究目的:本研究的目的是通过对使用金属丝卡环和柔性聚合物卡环的可拆卸部分义肢患者的舒适性进行比较研究。材料和方法。本研究采用Meliodent热固化丙烯酸树脂义齿配wipla金属卡环、Valplast柔性义齿和CuSil硅橡胶卡环义齿。研究分为3组,每组8例患者,分别在部分可摘义齿插入口腔6、12、18、24个月后,根据5项标准测定患者的舒适度。结果。Valplast聚酰胺义齿患者(37.5%)最多发现卡环区口腔黏膜出现褥疮病变,第三组(CuSil PAD)患者中37.5%出现假体基部和卡环区颜色变化,研究中没有患者出现过敏反应,第三次和第四次回忆时,所有组中只有1例患者抱怨口腔味道不佳。结论。使用柔性聚合物和硅橡胶CuSil衬垫制成的可移动义肢修复体,虽然最初更舒适,因此更容易被患者接受,但两年后,与使用钳子激活的wipla金属丝卡环相比,不再活跃,无法激活,需要技术修复,或者在骨折的情况下,由牙科实验室的技术人员更换。
{"title":"Comparative study of the comfort in patients rehabilitated with three types of partial dentures","authors":"F. Bechir, Ilinca Suciu","doi":"10.2478/asmj-2019-0010","DOIUrl":"https://doi.org/10.2478/asmj-2019-0010","url":null,"abstract":"Abstract Introduction: At present, the researchers are targeted to improve and increase the biocompatibility of dental materials that are in direct contact with biological tissues. The biocompatibility of the dental materials that contact the tissues of the oral cavity present relevance for the patient, clinician, dental technician, and manufacturer. Aim of the study: The aim of this study was represented by the comparative research regarding the comfort of the patients wearing removable partial prostheses with clasps made of wire and flexible polymers. Material and Methods. Patients wearing partial dentures from Meliodent heat-cured acrylic resins with wipla wire clasps, flexible partial dentures made from Valplast and dentures with clasps of CuSil silicone rubber participated in this study. The research was performed on 3 groups, of 8 patients each, in which comfort levels (according to 5 criteria) were determined, after 6, 12, 18, respectively 24 months of the partial removable prostheses insertion in the oral cavity. Results. Presence of decubitus lesions of the oral mucosa in the clasps areas was noticed mostly in the Valplast polyamide dentures (37.5%), existence of color changes at the base of prostheses and of clasps area appeared in 37.5% of the third group (CuSil PAD) patients, no patient included in the study presented allergic reactions and at the third and fourth recall, only 1 patient of all groups complained of unpleasant taste in the oral cavity. Conclusion. The removable prosthetic restorations with clasps made of flexible polymers and CuSil gaskets of silicone rubber, although initially much more comfortable and therefore much better accepted by patients, after two years were no longer active, could not be activated and necessited technical restorations, compared to those made of wipla wire clasps, which were activated with pliers, or, in the case of fracture, were replaced by the technician in the dental laboratory.","PeriodicalId":120290,"journal":{"name":"Acta Stomatologica Marisiensis Journal","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130144889","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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Acta Stomatologica Marisiensis Journal
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