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Study on the conditions of color determination in dentistry. 牙科颜色测定条件研究。
Pub Date : 2023-12-01 DOI: 10.2478/asmj-2023-0011
Szabina Barothi, Zsuzsanna Bardocz-Veres, Krisztina Mártha, Bernadette Kerekes-Máthé
Abstract Introduction: Several variables can impact the choice of shade. Having a thorough understanding of these factors and following the proper selection technique is crucial for achieving favorable esthetic results. Aim of the study: To review the characteristics of esthetic perception of teeth in different lighting conditions, by individuals with different levels of experience in dentistry. Material and methods: Thirty volunteers, dentistry students, and general dentists were recruited. The participants were asked to determine the color of 4 mock-ups containing artificial teeth, under standardized conditions. Therefore, the samples were introduced in a custom-made box and illuminated by two different light conditions (4300 K and 5500 K), and three different colors (black, gray, and pink) were selected as background colors. Results: Our results showed a statistically significant difference between the two examined light conditions, the number of correct color determinations was significantly higher under the light with a color temperature of 5500K (p<0.00001). It can be seen that the gray background color proved to be statistically significantly more beneficial than the black and pink background colors. Conclusions: Among dentistry students and practitioners, environmental changes that affect shade determination have been demonstrated. Further research is still necessary regarding the perception of the esthetic expectations of dental treatments for color determination.
摘要 简介:有几个变量会影响色调的选择。充分了解这些因素并遵循正确的选择技巧对于获得良好的美学效果至关重要。研究目的回顾具有不同牙科经验的个人在不同光线条件下对牙齿的美学感知特征。材料和方法:招募了 30 名志愿者、牙科专业学生和普通牙医。参与者被要求在标准化条件下确定 4 颗包含人造牙齿的模型的颜色。因此,样品被放入一个特制的盒子中,用两种不同的光照条件(4300 K 和 5500 K)照射,并选择三种不同的颜色(黑色、灰色和粉色)作为背景色。结果显示我们的结果表明,两种光照条件之间存在显著的统计学差异,在色温为 5500K 的光照条件下,颜色判断的正确率明显更高(p<0.00001)。可以看出,灰色背景在统计学上明显比黑色和粉色背景更有利。结论:在口腔医学专业的学生和从业人员中,环境变化对色调判断的影响已经得到证实。关于牙科治疗的美学期望对颜色判断的影响,仍需进一步研究。
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引用次数: 0
Occlusal Concepts in Implantology. 种植学中的咬合概念。
Pub Date : 2023-12-01 DOI: 10.2478/asmj-2023-0006
Dragomir Lucian Paul
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引用次数: 0
Systematic Review Regarding The Difference In Dental Plaque Accumulation Associated With Fixed Orthodontic Retainers And Vacuum Formed Removable Retainer. 关于固定正畸保持器和真空成形可摘保持器牙菌斑累积差异的系统性综述
Pub Date : 2023-12-01 DOI: 10.2478/asmj-2023-0008
Enrica Muggianu, Damiano Musilli, Antonella D’Andrea
Abstract Introduction: Orthodontic retention is fundamental to prevent tooth relapse after the treatment. Plaque accumulation is a serious concern, affecting periodontal health. In this study, the effects of fixed retainers with removable vacuum formed retainers on plaque accumulation by evaluating the Plaque Indices were compared. Aim of the study: The aim of the present systematic review is to comprehend which orthodontic retainer between fixed retainers and the removable vacuum formed retainers results in the least amount of plaque accumulation. Material and Methods: For evaluation a literature review was carried out by all the reviewers by consulting PubMed, ScienceDirect, The Lancet, Sciendo, and Google Scholars electronic databases for biomedical and health literature. The articles were selected from 2017 onwards with the restriction of the English language. Results: 5 studies were selected, reporting on a total of 249 patients both males and females who after debonding orthodontic appliances followed up with either a fixed or vacuum formed retainer. Conclusion: Within their limits, the results seem to show that patients who wear Vacuum Formed Retainers tend to accumulate less plaque than the ones that wear Fixed Retainers. However, subsequent studies are required to address this matter and draw a definitive conclusion.
摘要 简介:正畸固位是防止治疗后牙齿复发的基础。牙菌斑的积累是影响牙周健康的一个严重问题。在这项研究中,通过评估牙菌斑指数,比较了固定保持器和活动真空成型保持器对牙菌斑累积的影响。研究目的本系统综述旨在了解在固定保持器和可摘式真空成形保持器中,哪种正畸保持器导致的牙菌斑累积量最少。材料和方法:为了进行评估,所有审稿人都查阅了PubMed、ScienceDirect、The Lancet、Sciendo和Google Scholars等生物医学和健康文献电子数据库,进行了文献综述。文章选自 2017 年以后,语言限制为英语。结果:共选取了 5 项研究,报告了 249 名男性和女性患者在脱粘正畸装置后使用固定或真空成形保持器进行后续治疗的情况。研究结论在一定范围内,研究结果似乎表明,佩戴真空成形保持器的患者比佩戴固定保持器的患者积累的牙菌斑更少。不过,要解决这个问题并得出明确的结论,还需要后续的研究。
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引用次数: 0
Clinical and practical aspects of the gingival smile. A questionnaire-based survey. 牙龈微笑的临床和实践方面。问卷调查
Pub Date : 2023-12-01 DOI: 10.2478/asmj-2023-0012
Andreea Vlasiu, Cristina-Larisa Friciu, Ana Lazăr, Timea Dakó, Lumința Lazăr
Abstract Introduction: One of the main elements of facial esthetics is represented by the smile. A harmonious proportion between the elements of facial esthetics is an important subject of interest in dentistry. Aim of the study: This research aims to evaluate the impact of the gummy smile on future dental practitioners. Materials and Methods: A survey containing 16 questions was designed to find out the students’ perceptions about the ideal smile and if the gingival smile is considered youthful or unpleasing. The impact on their self-esteem, their willingness to change the gummy smile or not, the nonsurgical and surgical methods of treatment were also evaluated. Results: 212 answers were recorded and analyzed. Nearly three quarters (70.3%) of the respondents believe that having a gummy smile is unesthetic, while only 29.3% considered it to be a sign of youth. Self-esteem can be affected by having a gingival smile, but, according to the results, most of the students (45.8%) said that their daily lives have not been affected by it, 40.6% said that in a small amount, 10.4% said that their self-assurance has been very affected and only 3.3% admitted that the gummy smile distressed their confidence. When asked if they were willing to correct their gingival smile, 51.4% were open to improving it while 48.6% would not change it. Conclusions: Among dentistry students, excessive showing of the gums is believed to be unesthetic rather than a sign of youthfulness. The respondents are generally not affected in their daily life by having a gummy smile. Education regarding the methods of correcting it still needs to be addressed amongst future dental practitioners.
摘要 简介:微笑是面部美学的主要元素之一。面部美学各要素之间的和谐比例是牙科学界关注的一个重要课题。研究目的本研究旨在评估牙龈笑对未来牙科医生的影响。材料和方法:设计了一项包含 16 个问题的调查,以了解学生们对理想微笑的看法,以及牙龈微笑被认为是年轻的还是不美观的。此外,还评估了对学生自尊心的影响、他们是否愿意改变牙龈笑、非手术和手术治疗方法。结果:共记录并分析了 212 个答案。近四分之三(70.3%)的受访者认为牙床笑不美观,只有 29.3% 的受访者认为牙床笑是年轻的标志。牙龈笑可能会影响自尊,但结果显示,大多数学生(45.8%)表示日常生活没有受到牙龈笑的影响,40.6%的学生表示影响不大,10.4%的学生表示自信心受到很大影响,只有 3.3%的学生承认牙龈笑影响了他们的自信心。当被问及是否愿意矫正牙龈笑时,51.4% 的人愿意改善牙龈笑,48.6% 的人不愿意改变牙龈笑。结论牙科学专业的学生认为牙龈过度外露不美观,而不是年轻的标志。受访者一般不会因为牙龈笑而影响日常生活。有关矫正方法的教育仍需在未来的牙科医生中开展。
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引用次数: 0
Evaluation of the therapeutic performance of ICON infiltration resin in the treatment of White Spot Lesions in esthetic dental areas. Clinical Report. 评估 ICON 浸润树脂在治疗牙科美容区白斑病中的治疗效果。临床报告。
Pub Date : 2023-12-01 DOI: 10.2478/asmj-2023-0009
A. Stoica, O. Stoica, Timea Dakó, Andrea-Csinszka Kovăcs-Ivăcson, M. Monea, Zsuzsanna Bardocz-Veres
Abstract White spot lesions, pathologically characterized by enamel demineralization, present a significant challenge in dentistry. Notably, intervention at the white spot stage is crucial to impede further lesion progression. Recent advances studies have demonstrated the effectiveness of flowable resin infiltration as a minimally invasive alternative to traditional treatment modalities. This technique allows for the concurrent treatment of multiple lesions in a single appointment, circumventing the necessity for local anesthesia or extensive cavity preparation. Clinically, this method has shown consistent stability, evidenced by maintained enamel integrity, enhanced rigidity, and preservation of adjacent healthy dental tissues. Additionally, the aesthetic outcomes of this approach are noteworthy, with a gradual diminution of lesion visibility over time. The present case report elucidates the long-term clinical outcomes and the efficaciousness of the Icon kit in the targeted management of specific white spot lesion pathologies.
摘要 白斑病的病理特征是釉质脱矿,是牙科领域的一大挑战。值得注意的是,在白斑阶段进行干预对于阻止病变进一步发展至关重要。最近的研究表明,可流动树脂浸润作为传统治疗方式的微创替代方法非常有效。这种技术可以在一次预约中同时治疗多个病变,避免了局部麻醉或大量牙洞准备的必要性。在临床上,这种方法显示出一贯的稳定性,表现为保持釉质的完整性、增强硬度和保留邻近的健康牙体组织。此外,这种方法的美学效果也值得关注,随着时间的推移,病变的可见度会逐渐降低。本病例报告阐明了 Icon 套件在有针对性地治疗特定白斑病变方面的长期临床效果和有效性。
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引用次数: 0
Quantification of flowability and hydrophilicity of elastomeric impression materials. 量化弹性印模材料的流动性和亲水性。
Pub Date : 2023-12-01 DOI: 10.2478/asmj-2023-0010
Csaba Dudás, Zsuzsanna Bardocz-Veres, Balázs-Zoltán Metz, Róbert Opra, Mária Henrietta Dudas, Bernadette Kerekes-Máthé
Abstract Introduction: Flowability and hydrophilicity are essential properties of accurate impressions and casts. Aim of study: This study aimed to quantify these characteristics of elastomeric impression materials. Material and Methods: A total number of eight impression materials, including vinyl polysiloxane (PVS), polyether (PE), and condensation silicone (CS) were thoroughly investigated in this study. The flowability of elastomers was proven with the shark fin test (SFT), and the hydrophilicity was determined with contact angle (CA) measurements. Results: The shark fins’ (SF) of VPSs presented 11.57 mm (SD 3.49), while the PE 11.37 mm (SD 5.06) and CS 8.1 mm average values. Some of the products showed better flowability. Based on 128 measured CAs, the examined polyethers had the lowest CAs which indicate good hydrophilicity. Conclusions: A good performance of an impression material in one of the involved tests (SFT and CA) does not mean a similar result in the other analysis. All investigated impression materials could be considered hydrophilic as their CA was lower than 90°. The SFTs of light-bodied VPSs and PEs suggest reliable use of them in dental practice.
摘要 简介:流动性和亲水性是精确印模和铸模的基本特性。研究目的本研究旨在量化弹性印模材料的这些特性。材料与方法:本研究对乙烯基聚硅氧烷(PVS)、聚醚(PE)和缩合硅氧烷(CS)等八种印模材料进行了深入研究。弹性体的流动性由鲨鱼鳍试验(SFT)证明,亲水性由接触角(CA)测量确定。研究结果VPS 的鲨鱼鳍(SF)平均值为 11.57 毫米(SD 3.49),而 PE 的鲨鱼鳍(SF)平均值为 11.37 毫米(SD 5.06),CS 的鲨鱼鳍(SF)平均值为 8.1 毫米。一些产品显示出更好的流动性。根据测得的 128 个 CA 值,所研究的聚醚的 CA 值最低,这表明它们具有良好的亲水性。结论印模材料在其中一项测试(SFT 和 CA)中表现良好,并不意味着在其他分析中也有类似的结果。所有调查的印模材料都可以被认为是亲水性的,因为它们的 CA 都低于 90°。轻质 VPS 和 PE 的 SFT 值表明在牙科实践中使用它们是可靠的。
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引用次数: 0
Evaluation of the tensile properties of polished and unpolished 3D SLA- and DLP-Printed specimens used for surgical guides fabrication. 用于外科导向器制造的抛光和未抛光的3D SLA和dlp打印标本的拉伸性能评估。
Pub Date : 2023-06-01 DOI: 10.2478/asmj-2023-0003
S. Pop, M. Dudescu, L. Contac, Radu Vasile Pop
Abstract Introduction: The fundamental mechanical properties of 3D printed surgical guides used in orthodontics represent an important indicator for the accuracy of the insertion of skeletal anchorage devices. The tensile strength of devices printed by stereolithography (SLA) and digital light processing (DLP) methods, respectively, is influenced by factors such as finishing process. Aim of the study: This study illustrates a comparison of the tensile strength in two different types of 3D printed devices (SLA, DLP respectively) undergoing or not a standard process of polishing. Material and methods: Twenty-four specimens obtained according to ASTM D638-14 (Standard Test Method for Tensile Properties of Plastics) were used for the evaluation of tensile strength. Four groups of 6 samples from each category were created: SLA polished, SLA unpolished, DLP polished and DLP unpolished. After removing the support, finishing was performed to obtain smooth surfaces, according to the manufacturer’s recommendation. Type V specimen was used to perform tensile tests in accordance with the standard procedures ASTM D638-14 which recommends at least five specimens to be tested for each sample. One-way analysis of variance (ANOVA) and t-test showed statistically significant results at p < 0.05. SPSSv17 software was used for statistical analysis of the numerical variables, and also descriptive statistics were performed. Results: The measurements included: tensile strength (maximum load), tensile stress at maximum load and tensile strain at maximum load. The maximum load (tensile strength) of the polished specimens was lower, both for the SLA and DLP, with no statistical significance results. Conclusions: The conclusions indicated differences between maximum load and tensile stress at maximum load between polished and unpolished specimens, in both SLA and DLP groups. Althought the polishing process reduces the tensile strenght, the data analysis did not present statistically significant results.
摘要导读:用于正畸的3D打印手术导板的基本力学性能是骨骼锚定装置插入准确性的重要指标。采用立体光刻(SLA)和数字光处理(DLP)方法印刷的器件的抗拉强度分别受到整理工艺等因素的影响。研究目的:本研究比较了两种不同类型的3D打印设备(分别为SLA和DLP)在进行或不进行标准抛光过程中的抗拉强度。材料和方法:根据ASTM D638-14(塑料拉伸性能标准试验方法)获得的24个试样用于拉伸强度的评估。从每个类别中创建四组6个样品:SLA抛光,SLA未抛光,DLP抛光和DLP未抛光。移除支架后,根据制造商的建议进行整理以获得光滑的表面。V型试样按照ASTM D638-14的标准程序进行拉伸试验,该标准程序建议每个试样至少测试5个试样。单因素方差分析(ANOVA)和t检验显示p < 0.05有统计学意义。采用SPSSv17软件对数值变量进行统计分析,并进行描述性统计。结果:测量包括:抗拉强度(最大载荷)、最大载荷下的拉应力和最大载荷下的拉应变。抛光试样的最大载荷(抗拉强度)均低于抛光后的SLA和DLP,但结果无统计学意义。结论:在SLA组和DLP组中,抛光组和未抛光组的最大载荷和最大载荷下的拉伸应力存在差异。虽然抛光过程降低了抗拉强度,但数据分析没有出现统计学上显著的结果。
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引用次数: 1
The power of digital dentistry 数字牙科的力量
Pub Date : 2023-06-01 DOI: 10.2478/asmj-2023-0001
Diana Cerghizan, Janosi Kinga Maria
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引用次数: 0
The influence of the prosthetic abutments colour in the aesthetics of the frontal teeth. A case report. 义齿基台颜色对前牙美观的影响。一份病例报告。
Pub Date : 2023-05-20 DOI: 10.2478/asmj-2023-0004
Denisa Tabita Sabău, R. Juncar, Abel Emanuel Moca, M. Juncar
Abstract Introduction: Prosthetic restorations in the frontal teeth, in addition to functional and prophylactic requirements, must respond in a special way to aesthetic needs. This desideratum is a challenge, especially when the support for the future prosthetic parts is not characterized by a uniformity of color. This paper wants to highlight the importance of the color of prosthetic abutments, in the case of single restorations, for the frontal teeth. Case presentation: This manuscript presents the clinical case of a patient, with different prosthetic abutments, namely: a hybrid implant abutment - titanium and zirconium (lateral incisor - 1.2), nonvital natural teeth (central incisors – 1.1 and 2.1) and a vital natural tooth (lateral incisor – 2.2). Three single ceramic crowns on zirconium were confectioned, one with implant support and the other two on dental support, and a veneer for the vital lateral incisor. Conclusions: The prosthodontist must develop the best prosthetic solution for each individual case, together with the technician, so that the aesthetic results are not negatively influenced by the different colors of the existing prosthetic abutments.
摘要简介:门牙修复体除了功能和预防要求外,还必须以特殊的方式满足审美需求。这种愿望是一个挑战,特别是当支持未来的假肢部件的特点是不均匀的颜色。本文想强调的是,在单一修复的情况下,义肢基台的颜色对前牙的重要性。病例介绍:本文介绍了一名患者的临床病例,患者使用不同的假体基牙,即:混合种植基牙-钛和锆(侧门牙- 1.2),非重要天然牙(中门牙- 1.1和2.1)和重要天然牙(侧门牙- 2.2)。三个单一的陶瓷冠在锆上被配制,一个有种植体支持,另外两个有牙齿支持,并为重要的侧切牙贴面。结论:义齿医师必须与技师一起针对每个病例制定最佳的义肢解决方案,以免现有义肢基台颜色的不同对美学效果产生负面影响。
{"title":"The influence of the prosthetic abutments colour in the aesthetics of the frontal teeth. A case report.","authors":"Denisa Tabita Sabău, R. Juncar, Abel Emanuel Moca, M. Juncar","doi":"10.2478/asmj-2023-0004","DOIUrl":"https://doi.org/10.2478/asmj-2023-0004","url":null,"abstract":"Abstract Introduction: Prosthetic restorations in the frontal teeth, in addition to functional and prophylactic requirements, must respond in a special way to aesthetic needs. This desideratum is a challenge, especially when the support for the future prosthetic parts is not characterized by a uniformity of color. This paper wants to highlight the importance of the color of prosthetic abutments, in the case of single restorations, for the frontal teeth. Case presentation: This manuscript presents the clinical case of a patient, with different prosthetic abutments, namely: a hybrid implant abutment - titanium and zirconium (lateral incisor - 1.2), nonvital natural teeth (central incisors – 1.1 and 2.1) and a vital natural tooth (lateral incisor – 2.2). Three single ceramic crowns on zirconium were confectioned, one with implant support and the other two on dental support, and a veneer for the vital lateral incisor. Conclusions: The prosthodontist must develop the best prosthetic solution for each individual case, together with the technician, so that the aesthetic results are not negatively influenced by the different colors of the existing prosthetic abutments.","PeriodicalId":120290,"journal":{"name":"Acta Stomatologica Marisiensis Journal","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129083809","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
The link between Noncarious Cervical Lesions (NCCL) and gingival recession. Etiology and treatment. A narrative review. 宫颈非龋齿病变(NCCL)与牙龈萎缩之间的联系。病因及治疗。叙述性评论
Pub Date : 2023-03-08 DOI: 10.2478/asmj-2023-0002
L. Lazăr, Z. Makkai, Timea Dakó, M. Suciu, A. Lazar
Abstract Noncarious cervical lesions (NCCL) have a multifactorial etiology. The terms abfraction, abrasion, and erosion are also used to describe the same lesion. NCCLs can lead to gum recession which is one of the most frequent gingival defects. NCCLs generally also involve loss of tooth structure. Therefore, treatments should be planned and performed in an interdisciplinary manner. When NCCL is minimal, the choise to use simple direct restorations is the main therapeutic option. If it is serious, microsurgical treatment or, more precisely, interdisciplinary treatment might be necessary. Root coverage by microsurgical methods is the most challenging esthetic procedure. There are many techniques available of which we must always choose the method that can ensure and control root coverage in the long term.
宫颈非龋齿性病变(NCCL)具有多因素病因。术语剥离、磨损和侵蚀也用于描述相同的损伤。ncls可导致牙龈萎缩,这是最常见的牙龈缺陷之一。ncls通常还包括牙齿结构的丧失。因此,治疗应以跨学科的方式进行计划和实施。当NCCL是最小的,选择使用简单的直接修复是主要的治疗选择。如果病情严重,可能需要显微外科治疗,或者更准确地说,需要跨学科治疗。显微外科方法覆盖牙根是最具挑战性的美容手术。有许多技术可供选择,我们必须始终选择能够长期保证和控制根系覆盖的方法。
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引用次数: 0
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Acta Stomatologica Marisiensis Journal
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