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Bond Strength Comparison Among 10-MDP-Containing and Non-10-MDP-Containing Adhesives in Different Degrees of Dental Fluorosis 含10- mdp与不含10- mdp胶粘剂在不同程度氟斑牙中的粘结强度比较
IF 0.5 Q4 Dentistry Pub Date : 2022-09-12 DOI: 10.15517/ijds.2022.52446
Luis Javier Solís-Martínez, Karla Yareli Valles Flores, Nohé Vargas Chávez, O. Almeda-Ojeda, Víctor Hiram Barajas-Pérez, Edgar García-Torres
Dental fluorosis can cause changes in the enamel surface, conditioning its functionality and esthetics. The application of dental adhesives is a treatment option; however, their use on fluorotic teeth can result in limitations. The aim of this study was to compare the shear bond strength of two different adhesives, one with 10-MDP and one without 10-MDP, in different degrees of dental fluorosis.This is an in vitro study on dental enamel samples, a total of 180 samples with the inclusion criteria were treated, randomly divided into two groups of 90, according to the type of dental adhesive, where each group was again divided into three groups of 30 samples, representing different degrees of dental fluorosis according to the Thylstrup-Fejerskov index (Group I: TF1 and TF2; Group II: TF3; Group III: TF4). Normality tests, two-factor ANOVA, and post-hoc tests were used to determine differences between the groups, with a significance level of 95%. As results, a statistically significant difference was shown between the use of dental adhesive with 10-MDP and the three groups of dental fluorosis (p=0.011), in addition, a Tukey post-hoc test on the groups treated with 10-MDP adhesive revealed a statistically significant difference between group I versus group II, and group I versus group III, (p=<0.05). It is concluded that the use of adhesive systems with 10-MDP presents a better shear bond strength on enamel with dental fluorosis grades I and II in the Thylstrup-Fejerskov index.
氟斑牙会引起牙釉质表面的变化,影响其功能和美观。使用牙胶粘剂是一种治疗选择;然而,它们在含氟牙齿上的使用可能会导致局限性。本研究旨在比较含10-MDP和不含10-MDP两种不同黏合剂在不同程度氟牙症中的剪切粘接强度。这是一项牙釉质样品的体外研究,共对180个符合纳入标准的样品进行处理,根据牙胶粘剂的类型随机分为两组,每组90个,其中每组再根据thylstrp - fejerskov指数分为三组,每组30个样品,代表不同程度的氟牙症(第一组:TF1和TF2;第二组:TF3;第三组:TF4)。采用正态性检验、双因素方差分析和事后检验来确定组间差异,显著性水平为95%。结果显示,使用含10-MDP牙胶粘剂与三组氟牙症的差异有统计学意义(p=0.011),并且对使用10-MDP牙胶粘剂组进行Tukey事后检验显示,1组与2组、1组与3组的差异有统计学意义(p=<0.05)。综上所述,10-MDP粘接体系对Thylstrup-Fejerskov指数I级和II级氟牙症牙釉质具有较好的剪切粘接强度。
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引用次数: 0
Patients Satisfaction with Dental Service, School of Dentistry, University of Costa Rica 病人对牙科服务的满意度,哥斯达黎加大学牙科学院
IF 0.5 Q4 Dentistry Pub Date : 2022-09-09 DOI: 10.15517/ijds.2022.52426
Natalia Gutiérrez-Marín, A. López-Soto
The objective of this research was to use the Dental Satisfaction Questionnaire to determine the level of patient’s satisfaction who come to the School of Dentistry of the University of Costa Rica.  The research was conducted with the entire population of patients who received dental care in the Undergraduate Student Clinics of the School of Dentistry between April and September 2021. A digital survey was generated with the questions of the DSQ and sociodemographic variables, which was sent by email.  Descriptive statistics were performed to establish the absolute and relative frequency, as well as measures of central tendency and variability, according to the nature of the variables. The Kolmogorov-Smirnov test was used in the conformity assessment of the data for the normal distribution. The relationships between the scores obtained from the Dental Satisfaction Questionnaire and the sociodemographic variables were analyzed using the Mann-Whitney U Test and the Kruskal-Wallis Test. A response rate of 36% was obtained. 98.5% of the subjects were satisfied with the services received. There was a statistically significant difference between the frequency of visits and the dental satisfaction scale (p=0.001). The scoring by type of clinic with regards to access, pain management, cost and availability were statistically significant (p=0.001, p=0.014, p=0.001, p=0.001, respectively). The differences in the relationship between the age groups and access was significant (p=0.014); in addition to that between education level and cost (p=0.001). A large majority of patients who come to the services of the School of Dentistry UCR are satisfied with the service received.
本研究的目的是使用牙科满意度问卷来确定哥斯达黎加大学牙科学院的患者满意度水平。该研究是在2021年4月至9月期间在牙科学院本科生诊所接受牙科护理的全部患者中进行的。数字调查产生了DSQ和社会人口变量的问题,并通过电子邮件发送。根据变量的性质,进行描述性统计以确定绝对频率和相对频率,以及集中趋势和变异性的测量。采用Kolmogorov-Smirnov检验对正态分布的数据进行符合性评定。采用Mann-Whitney U检验和Kruskal-Wallis检验分析牙科满意度问卷得分与社会人口学变量之间的关系。应答率为36%。98.5%的受试者对所获得的服务感到满意。就诊频率与牙科满意度量表差异有统计学意义(p=0.001)。不同类型诊所在可及性、疼痛管理、费用和可得性方面的评分均有统计学意义(p=0.001, p=0.014, p=0.001, p=0.001)。各年龄组与可及性的关系差异有统计学意义(p=0.014);此外,教育水平和成本之间的关系(p=0.001)。绝大多数来UCR牙科学院服务的患者对所获得的服务感到满意。
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引用次数: 0
Estimation of Dental Age Using the Kvaal Method with Digital Panoramic Radiographs in Peruvian Adults 用Kvaal方法和数字全景x线片估计秘鲁成年人的牙龄
IF 0.5 Q4 Dentistry Pub Date : 2022-09-08 DOI: 10.15517/ijds.2022.52413
Heikky N. Izaguirre-López, Daniel G. Suarez-Ponce, Milushka Quezada-Márquez, Violeta A. Nolberto-Sifuentes, Erika R. Alvarado-Muñoz
To determine the accuracy of the Kvaal method in the estimation of dental age through the analysis of digital panoramic radiographs of patients between 20 and 47 years of age who attended the stomatological clinic of the Universidad Científica del Sur, (2018 to 2019), Lima-Perú. 289 digital panoramic radiographs belonging to individuals of both sexes, aged 20 to 47 years were analyzed. Length and width measurements were obtained in the dental and pulp chamber in the upper central incisors. These data were subsequently evaluated by calculating the proportions between the pulp and root length of the upper central incisor by applying the formula of the method of Kvaal et al. to obtain the accuracy of the method in estimating dental age. Applying the formula of Kvaal et al. indicates that the relationship between the width of the pulp and the length of the root has a higher level of significance in relation to others proportions: M mean value of all ratios except T (-0.659) and W-L difference between W and L (-0.643). The coefficient of determination (r²) and standard error of estimation (SEE) using the original Kvaal formula is r²: 0.70, SEE: 4.90 years, then a modified Kvaal formula was proposed for the Peruvian population. The Method of Kvaal et al. has an accuracy of 1.24 in estimating the dental age of individuals, using the upper central incisor in digital panoramic radiographs.
为了确定Kvaal方法在估计牙齿年龄方面的准确性,通过分析在universsidad Científica del Sur牙科诊所就诊的20至47岁患者的数字全景x线片(2018年至2019年),Lima-Perú。本文分析了年龄在20 ~ 47岁的289张男女数字全景x线片。测量上中切牙牙室和牙髓室的长度和宽度。然后应用Kvaal等人的计算公式计算上中切牙牙髓与牙根长度的比例来评估这些数据,以获得该方法估算牙龄的准确性。应用Kvaal等人的公式可知,牙髓宽度与根长之间的关系相对于其他比例具有较高的显著性:除T(-0.659)和W-L之间的差值(-0.643)外,所有比例的均值均为M。采用原Kvaal公式的决定系数(r²)和估计标准误差(SEE)为r²:0.70,SEE: 4.90年,然后提出了秘鲁人口的修正Kvaal公式。Kvaal等人的方法在使用数字全景x线照片上的上中切牙估计个体牙齿年龄的准确性为1.24。
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引用次数: 1
Foreign Body Granuloma in the Maxillofacial Region: Report of an Unusual Case 颌面部异物肉芽肿1例报道
IF 0.5 Q4 Dentistry Pub Date : 2022-09-07 DOI: 10.15517/ijds.2022.52388
Mónica Orozco-Gallardo, E. Gutiérrez-Cortés, S. J. Vázquez-Alcaraz, A. D. Valdivia
This paper aimed to present a clinical case presenting an unusual periapical radiolucent lesion, its approach and treatment, and as an element of differential diagnosis in periapical pathology. Foreign body granuloma (FBG) is a tissue reaction that is triggered by the deposit of a foreign material affecting the skin and internal organs that the immune system tries to delimit and, if possible, eliminate. FBG may constitute a complication of a surgical procedure or a new pathology for the patient, which precedes an iatrogenic event causing diagnostic difficulties. This study presented an unusual periapical radiolucent lesion in a male patient with a periapical radiolucent area found in panoramic radiography; the lesion was enucleated, histopathologically confirming an FBG, which was the result of a biomaterial used in surgery for nasal polyps and deviated septum performed years before. This case shows us a very unusual presentation of an FBG within the maxillary bone after surgery for nasal polyps and deviated septum. The appropriate use of the available imaging tools and histopathological study and interpretation is emphasized, to be able to carry out a successful long-term treatment with the lowest chances of recurrence. In addition, an interdisciplinary approach is very important, which leads us to the comprehensive treatment of the patient. The proper use of diagnostic and imaging methods that we currently have, as well as knowledge of differential diagnoses, is essential to successfully diagnose and treat injuries in the maxillofacial area.
本文报告一罕见的根尖周围放射性病变的临床病例,其方法和治疗,并作为根尖周围病理鉴别诊断的一个要素。异物肉芽肿(FBG)是一种组织反应,由影响皮肤和内部器官的外来物质沉积引发,免疫系统试图划定并在可能的情况下消除。FBG可能是外科手术的并发症或患者的新病理,先于引起诊断困难的医源性事件。本研究报告一位男性患者在全景x线摄影中发现一个不寻常的根尖周围放射透光病变;病变被去核,组织病理学证实为FBG,这是多年前用于鼻息肉和鼻中隔偏曲手术的生物材料的结果。本病例向我们展示了鼻息肉和鼻中隔偏曲手术后上颌骨内异常的FBG。强调适当使用可用的成像工具和组织病理学研究和解释,以便能够以最低的复发机会进行成功的长期治疗。此外,跨学科的方法是非常重要的,这导致我们对病人的综合治疗。正确使用我们目前拥有的诊断和成像方法,以及鉴别诊断的知识,对于成功诊断和治疗颌面部损伤至关重要。
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引用次数: 0
COVID-19 Pandemic and Dental Research: the Two Sides of the Aftermath COVID-19大流行和牙科研究:后果的两面
IF 0.5 Q4 Dentistry Pub Date : 2022-08-23 DOI: 10.15517/ijds.2022.52233
D. Chavarría-Bolaños
.
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引用次数: 0
Knowledge, Attitudes and Practices Related to Oral Health in First-Year University Students of the Paraíso Campus of the University of Costa Rica 哥斯达黎加大学Paraíso校区一年级学生口腔健康相关知识、态度和行为
IF 0.5 Q4 Dentistry Pub Date : 2022-08-19 DOI: 10.15517/ijds.2022.52197
J. Barahona-Cubillo, Cinthya Rojas-Brenes, Cristina Barboza-Solís
People’s knowledge, attitudes, and practices related to health are built throughout life, particularly during childhood and adolescence, and they reflect the practices of their family and social circle. The aim of this study was to identify the levels of knowledge, attitudes, and practices related to oral health of first-year university students at the Paraíso Campus of the University of Costa Rica. This was done through a questionnaire of closed questions that would allow oral health educational strategies to be established in the future for this population group. For this purpose, a cross-sectional descriptive study was conducted, where 70 first-year students of the Paraíso Campus participated in the first semester of the year 2019.  For data collection, a survey of 22 closed questions on knowledge, attitudes, and practices about oral health was applied, and a score on oral health knowledge was subsequently performed, based on the answers to the questions. According to the results, the level of knowledge shown about oral health is low, since the average knowledge score (7.02 points) was less than half of the maximum score (17 points). The greatest deficiency in knowledge was evidenced in topics, such as, dental biofilm, gingivitis, use of fluorides, and the role of saliva. In addition, several practices that affect the condition of the oral cavity were identified, such as harmful habits, inadequate nutrition, and poor oral hygiene habits. In this study, a general lack of knowledge was identified regarding basic concepts of oral health in young university students, who are not clear about the role of some protective or risk factors related to the main oral diseases.
人们与健康有关的知识、态度和做法是在一生中,特别是在童年和青春期形成的,它们反映了其家庭和社交圈的做法。本研究的目的是确定Paraíso哥斯达黎加大学校园一年级大学生的口腔健康知识、态度和实践水平。这是通过一份封闭式问题调查问卷来完成的,这将使未来为这一人群制定口腔健康教育策略。为此,我们进行了一项横断面描述性研究,在2019年的第一学期,Paraíso校区的70名一年级学生参加了这项研究。为了收集数据,对22个关于口腔健康的知识、态度和实践的封闭式问题进行了调查,随后根据问题的答案对口腔健康知识进行了评分。结果显示,对口腔健康的知识水平较低,平均知识得分(7.02分)不到满分(17分)的一半。知识的最大不足体现在诸如牙齿生物膜、牙龈炎、氟化物的使用和唾液的作用等主题上。此外,还发现了一些影响口腔状况的习惯,如有害的习惯、营养不足和不良的口腔卫生习惯。本研究发现,青年大学生普遍对口腔健康的基本概念缺乏了解,对一些与主要口腔疾病相关的保护或危险因素的作用不清楚。
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引用次数: 0
Retromolar Canal Diagnosed by Cone-Beam Computed Tomography and its Influence in Inferior Alveolar Nerve Block 锥形束ct诊断磨牙后管及其对下牙槽神经阻滞的影响
IF 0.5 Q4 Dentistry Pub Date : 2022-08-17 DOI: 10.15517/ijds.2022.52179
E. Costa, J. H. Fortes, P. Cruvinel, H. Gaêta-Araujo, Lucas Moreira Mendonça, B. N. de Freitas, V. Pedrazzi, C. Oliveira-Santos, C. Tirapelli
The aim of this study was to observed the anesthetic efficacy of the alveolar nerve block on nine patients that CBCT diagnosed unilateral retromolar canal on a double-blind, split-mouth approach. The assessments of patient response to thermal (pulp vitality test) and pressure (compression of soft tissue) stimuli were carried out before and 5 minutes after the inferior alveolar nerve block procedure, using both visual analog scale (VAS) and Mc Gill pain questionnaires (McG). The mean percentage of patient response decreased after alveolar nerve block, according to both VAS and McG, and was statistically similar among hemi mandibles with and without retromolar canal (Wilcoxon>0.05); however, those without retromolar canal presented greater reduction in patient response in 6 out of 9 cases. Therefore, the retromolar canal is not a determinant factor of inferior alveolar nerve block failure.
本研究的目的是观察9例双盲、裂口入路CBCT诊断为单侧磨牙后管的患者的牙槽神经阻滞的麻醉效果。采用视觉模拟量表(VAS)和McG疼痛问卷(McG)评估患者在下牙槽神经阻滞手术前和手术后5分钟对热(牙髓活力测试)和压力(软组织压迫)刺激的反应。根据VAS和McG,患者在牙槽神经阻滞后的平均反应百分比下降,在有和没有后磨牙管的半下颌之间具有统计学意义相似(Wilcoxon>0.05);然而,没有后磨牙管的患者在9例中有6例患者反应更大。因此,磨牙后管不是下牙槽神经阻滞失败的决定性因素。
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引用次数: 0
Prevalence of Tooth Loss, Bleeding on Probing and Malocclusion as Oral Disease Indicators in Costa Rican Male Adolescents: a Cross Sectional Study 哥斯达黎加男性青少年牙齿脱落、探牙出血和错牙合患病率作为口腔疾病指标:一项横断面研究
IF 0.5 Q4 Dentistry Pub Date : 2022-07-19 DOI: 10.15517/ijds.2022.51871
J. Barahona-Cubillo, Cinthya Rojas-Brenes, Tony Sánchez-Achío, Sonia Stradi-Granados, Cristina Barboza-Solís
The evidence to characterize oral health during adolescence in Costa Rica is limited. This lack of adequate research makes it difficult to develop appropriate health policies for this subgroup of the population. This is particularly important because adolescence is the period during which good health habits must take root in order to foster good physical and cognitive development. This study aims to determine the prevalence of tooth loss, bleeding on probing and malocclusion in Costa Rican male adolescents at the “Colegio Técnico Profesional San Agustín” (St. Augustine’s Technical High School) located in the province of Cartago. Data was collected from 428 male adolescents aged 12-22 years in a cross-sectional study during 2019. Prevalence of tooth loss was calculated as the number of individuals having lost at least one tooth. The average number of teeth lost by individuals was also recorded. The bleeding on probing was an indicator used as a proxy parameter for monitoring periodontal health where the presence of bleeding on probing and calculus was also recorded. Malocclusion was measured using the Dental Aesthetic Index (DAI). The results showed that the prevalence of tooth loss, bleeding on probing and malocclusion was of 19%, 70.0% and 98%, respectively. It was also found that 81% of the participants had all their teeth, 11% had lost 1 tooth, 8% had lost more than one tooth of which 0.5% had lost more than 5 teeth. Considering a general classification of periodontal problems based on bleeding on probing and presence of calculus, the prevalence of periodontal problems increases to 92%. Regarding the DAI, the category identifying a very severe malocclusion was the most prevalent in the sample (88%). It is alarming the high prevalence of tooth loss, bleeding on probing, and malocclusions in a sample of Costa Rican male adolescents, compared to similar studies in other countries. The overarching conclusion of this study is that oral diseases represent an important health problem that urgently need proper public health action.
哥斯达黎加青少年口腔健康特征的证据有限。由于缺乏充分的研究,因此难以为这一人口亚群制定适当的卫生政策。这一点尤其重要,因为青春期是良好的健康习惯必须扎根的时期,以便促进良好的身体和认知发展。本研究的目的是确定位于carago省的“Colegio tsamicnico professionalsan Agustín”(圣奥古斯丁技术高中)的哥斯达黎加男性青少年牙齿脱落、探牙出血和错牙合的患病率。在2019年的一项横断面研究中,从428名12-22岁的男性青少年中收集了数据。牙齿脱落的患病率计算为至少失去一颗牙齿的人数。每个人的平均牙齿脱落数也被记录下来。探诊出血是监测牙周健康的一个指标,同时也记录了探诊和牙石出血的情况。采用牙美容指数(DAI)测量错牙合。结果显示,牙周脱落率为19%,牙探出血率为70.0%,牙合错率为98%。81%的人牙齿完好,11%的人牙齿脱落1颗,8%的人牙齿脱落1颗以上,其中0.5%的人牙齿脱落超过5颗。考虑到牙周问题的一般分类基于探诊出血和结石的存在,牙周问题的患病率增加到92%。关于DAI,识别非常严重错颌畸形的类别在样本中最普遍(88%)。与其他国家的类似研究相比,令人震惊的是,哥斯达黎加男性青少年样本中牙齿脱落、探牙时出血和咬合错误的发生率很高。本研究的总体结论是,口腔疾病是一个重要的健康问题,迫切需要采取适当的公共卫生行动。
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引用次数: 0
Irrigation Protocols Effects on Radicular Dentin: Cleaning, Disinfection and Remaining Ultrastructure 冲洗方案对根状牙本质的影响:清洁、消毒和剩余超微结构
IF 0.5 Q4 Dentistry Pub Date : 2022-07-19 DOI: 10.15517/ijds.2022.51869
Jessie F. Reyes-Carmona
A successful endodontic treatment requires a combination of satisfactory mechanical instrumentation, adequate irrigation protocols, and three-dimensional obturation of the canal system. Irrigation is considered the most critical procedure to ensure cleaning and disinfection. To date, a large variety of irrigants has been proposed. However, sodium hypochlorite (NaOCl) remains the gold standard. In order to achieve complete cleaning and disinfection, final irrigation with EDTA and ultrasonic devices has been used as an ideal protocol. Most endodontic research focuses on the cleaning and antibacterial properties of the irrigant solutions. Recent evidence demonstrated that the irrigation protocols cause erosion, affecting the radicular dentin ultrastructure. This article aims to describe the clinical features of the present knowledge concerning the effect of irrigation protocols on radicular dentin.
成功的根管治疗需要令人满意的机械器械、适当的灌洗方案和根管系统的三维封闭相结合。灌溉被认为是确保清洁和消毒的最关键的程序。迄今为止,已经提出了各种各样的灌溉方法。然而,次氯酸钠(NaOCl)仍然是黄金标准。为了达到彻底的清洗和消毒,采用EDTA和超声装置进行最终冲洗是一种理想的方案。大多数牙髓学研究集中在冲洗液的清洁和抗菌性能上。最近的证据表明,灌溉方案造成侵蚀,影响根状牙本质的超微结构。这篇文章的目的是描述的临床特点,目前的知识有关的影响冲洗方案对根状牙本质。
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引用次数: 0
Stress Distribution in Occlusal Veneers with Different Finish Lines When Applying Vertical and Tangential Forces 施加垂直力和切向力时不同终点线咬合贴面的应力分布
IF 0.5 Q4 Dentistry Pub Date : 2022-07-18 DOI: 10.15517/ijds.2022.51841
Jimmy Aliaga, Rosa S. Caro M., Mónica Hermoza N.
To evaluate stress distribution when applying vertical and tangential forces to 1mm thick occlusal veneers with different finish lines preparations, using the finite element method. One extracted third molar was prepared for occlusal veneers, firstly without any bevel. It was scanned in order to design two groups of lithium disilicate (G1A, G2A) and composite resin (G1B, G2B) occlusal veneers. Then, the third molar preparation was modified, beveling the finish line and it was subsequently scanned again to design the occlusal veneer groups with bevel (LD: G3A, G4A and CR: G3B, G4B). The four groups were subjected to different forces (400 N vertical and 900 N tangential). At 400 N, the non-beveled veneers showed slightly higher Von Mises stress values (G1A: 783 MPa and G1B 736.5 MPa) than the beveled veneers (G3A: 685.7 MPa and G3B: 675.8 MPa). However, when 900 N tangential forces were applied, the beveled occlusal veneers showed higher Von Mises stress values (G4A: 4297 MPa and G4B: 4133 MPa) than the non-beveled occlusal veneers (G2A: 2581.1 MPa and G2B: 3519.1 MPa). Furthermore, it was observed that the tissue under the occlusal veneers with bevel showed higher Von Mises stress values than the models without any bevel. Beveled and non-beveled occlusal veneers of lithium disilicate and composite resin presented similar stress distribution values when vertical forces of 400 N were applied; whereas with tangential forces of 900 N applied near to the finish line, the beveled groups presented notably higher stress values than the non-beveled groups. However, both finish line preparations presented adequate values for possible clinical performance.
采用有限元法对不同终点线制备的1mm厚咬合贴面施加垂直力和切向力时的应力分布进行评价。拔出一颗第三磨牙用于咬合贴面,首先没有任何斜面。扫描后设计两组二硅酸锂(G1A, G2A)和复合树脂(G1B, G2B)咬合贴面。然后,对第三磨牙进行修饰,使终点线呈斜角,随后再次扫描,设计有斜角的咬合贴面组(LD: G3A, G4A和CR: G3B, G4B)。四组小鼠分别受到400 N垂直力和900 N切向力的作用。在400 N时,非斜面贴面的Von Mises应力值(G1A: 783 MPa, G1B: 736.5 MPa)略高于斜面贴面(G3A: 685.7 MPa, G3B: 675.8 MPa)。然而,当施加900 N切向力时,坡口咬合贴片的Von Mises应力值(G4A: 4297 MPa和G4B: 4133 MPa)高于非坡口咬合贴片(G2A: 2581.1 MPa和G2B: 3519.1 MPa)。此外,我们还观察到,有斜角的咬合贴面下的组织比没有斜角的咬合贴面下的组织具有更高的Von Mises应力值。当垂直力为400 N时,斜口和非斜口的二硅酸锂和复合树脂咬合贴面的应力分布值相似;而在终点线附近施加900牛切向力时,斜面组的应力值明显高于非斜面组。然而,两种终点线制剂对可能的临床表现都有足够的价值。
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引用次数: 1
期刊
Odovtos - International Journal of Dental Sciences
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