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The expression of matrix metalloproteinase-13 (MMP-13) on xenograft and PRF in bone regeneration 基质金属蛋白酶-13 (MMP-13)在异种骨移植和PRF中的表达
Q3 Dentistry Pub Date : 2023-01-01 DOI: 10.4322/bds.2023.e3366
E. F. Augustina, Nur Riflianty Rivai, Haykal Miftah Gifary
Objective: inflammation may play a role in bone loss by altering the bone remodelling process, favouring bone resorption by osteoclasts over bone synthesis by osteoblasts. Matrix metalloproteinase 13 (MMP-13) has the ability to activate osteoclasts, leading to bone resorption. Regenerative treatments have been widely used in periodontology. When combined with Platelet-rich fibrin (PRF), xenografts will give better results in bone regeneration. The aim of this study was to evaluate the effect of xenograft combined with PRF on MMP-13 expression in a bone defect using an experimentally created bone defect. Material and Methods: eighteen New Zealand rabbits were assigned to three groups. Each group consisted of six New Zealand rabbits. A critical bone defect with a diameter size of 5 mm was created in the right tibia of each rabbit in group 1 (application: xenograft), group 2 (application: PRF), and group 3 (application: xenograft and PRF). The PRF was produced from 5 ml of blood taken from each rabbit’s ears. After 30 days, the rabbits were euthanized. The tissue samples were evaluated by immunohistochemical staining. Results: group 3 showed the lowest mean expression of MMP-13 (4.50) compared to group 1 (20.50) and group 2 (11.70). Group 3 showed a significant difference in the MMP-13 expression compared to group 1 and group 2 (P = 0.000) (P < 0.05). Conclusion: this research showed that the combination of xenograft and PRF had the lowest expression of MMP-13. The application of a xenograft and PRF has better osteogenesis ability in bone regeneration.
目的:炎症可能通过改变骨重塑过程,促进破骨细胞的骨吸收而不是成骨细胞的骨合成,从而在骨丢失中发挥作用。基质金属蛋白酶13 (MMP-13)具有激活破骨细胞,导致骨吸收的能力。再生治疗已广泛应用于牙周病。当与富血小板纤维蛋白(PRF)结合使用时,异种移植物将获得更好的骨再生效果。本研究的目的是评估异种移植物联合PRF对实验性骨缺损中MMP-13表达的影响。材料与方法:18只新西兰兔分为3组。每组6只新西兰兔。1组(应用异种移植物)、2组(应用PRF)和3组(应用异种移植物和PRF)在每只兔的右胫骨形成直径为5mm的临界骨缺损。PRF是从每只兔耳抽取5毫升的血液中产生的。30天后,这些兔子被安乐死。采用免疫组织化学染色对组织样本进行评价。结果:3组MMP-13的平均表达量为4.50,低于1组(20.50)和2组(11.70)。3组MMP-13表达量与1、2组比较差异有统计学意义(P = 0.000) (P < 0.05)。结论:本研究显示异种移植物与PRF联合使用时MMP-13的表达最低。异种移植物和PRF的应用在骨再生中具有较好的成骨能力。
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引用次数: 1
Knowledge and attitudes related to erosive tooth wear of professional wine tasters: a cross-sectional study 专业品酒师牙齿腐蚀磨损的相关知识和态度:一项横断面研究
Q3 Dentistry Pub Date : 2023-01-01 DOI: 10.4322/bds.2023.e3517
Bethania Paludo Oliveira, M. Buzalaf, N. M. Santos, N. C. Silva, T. M. Ventura, J. A. Rodrigues
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引用次数: 0
Wear of dental ceramics 牙科陶瓷的磨损
Q3 Dentistry Pub Date : 2023-01-01 DOI: 10.4322/bds.2023.e3638
N. C. Ramos, M. G. Augusto, L. M. M. Alves, C. Kleverlaan, A. D. Piva
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引用次数: 3
Scientific writing with artificial intelligence: key considerations and alerts 科学写作与人工智能:关键的考虑和警告
Q3 Dentistry Pub Date : 2023-01-01 DOI: 10.4322/bds.2023.e3988
Karolina Aparecida Castilho Fadim, Sérgio Eduardo de Paiva Gonçalves, João Paulo Mendes Tribst
The integration of artificial intelligence (AI) text generators in scientific reports demands careful evaluation of specific ethical considerations. While these AI technologies offer text generation support, addressing the ethical implications is vital. This editorial highlights the need for a thoughtful and responsible approach, emphasizing the establishment of guidelines and best practices by researchers and scientific communities. Collaborative efforts between AI developers, researchers, and ethical committees can ensure the seamless integration of AI technologies while upholding the integrity, quality, and ethical standards of scientific reporting. This text comprehensively summarizes the key considerations to be followed when utilizing artificial intelligence text generators in scientific reports. KEYWORDS Artificial intelligence; Dental society; Ethics; Forecasting; Scientific society.
在科学报告中整合人工智能(AI)文本生成器需要仔细评估具体的伦理考虑。虽然这些人工智能技术提供了文本生成支持,但解决伦理问题至关重要。这篇社论强调需要一种深思熟虑和负责任的方法,强调由研究人员和科学界建立指导方针和最佳实践。人工智能开发人员、研究人员和伦理委员会之间的协作努力可以确保人工智能技术的无缝集成,同时维护科学报告的完整性、质量和道德标准。本文全面总结了在科学报告中使用人工智能文本生成器时应遵循的关键考虑因素。关键词人工智能;牙科社会;道德规范;预测;科学的社会。
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引用次数: 0
Calcifying odontogenic cyst with AOT-like features: a case report and literature review 具有aot样特征的牙源性钙化囊肿1例并文献复习
Q3 Dentistry Pub Date : 2023-01-01 DOI: 10.4322/bds.2023.e3823
Lorena Vieira SACRAMENTO, Ianna Josefa Valeska de Aniz CASTRO, Leonardo M. G. FIGUEIREDO, Braúlio CARNEIRO, Jean Nunes dos SANTOS, Águida Cristina Gomes HENRIQUES
Odontogenic lesions are a heterogeneous group of diseases that presents differences in their biological behavior and the occurrence of variable inductive interactions. Calcifying odontogenic cyst (COC), or Gorlin’s cyst, is a well-recognized example of these lesions. We describe a case of COC with AOT-like areas and highlights its morphological diversity. A 60-year-old pheoderma man presented with a large swelling in the anterior buccal region of the mandible. Panoramic radiography revealed a well-defined, unilocular, radiolucent lesion associated with important root resorption. Complete enucleation of the lesion was performed and the histopathological findings met the criteria for the diagnosis of COC, although the cyst exhibited unusual AOT-like features. The patient has been recurrence free for 6 months after surgery. COCs with AOT-like features are rare, and reflect the multipotentiality and complexity of the inductive effects of the odontogenic epithelium with the ectomesenchyme. Enucleation seems to be the most indicated treatment, similar to classical COC. KEYWORDS Adenomatoid odontogenic tumor; Calcifying odontogenic cyst; Odontogenic cysts; Oral pathology; Oral surgery.
牙源性病变是一组异质性疾病,在其生物学行为和各种诱导相互作用的发生方面存在差异。钙化牙源性囊肿(COC),或Gorlin囊肿,是这些病变的一个公认的例子。我们描述了一例具有aot样区域的COC,并强调了其形态多样性。一个60岁的男子出现了一个大的肿胀在前颊区域的下颌骨。全景x线摄影显示病灶清晰,单眼,透光,伴有重要的牙根吸收。尽管囊肿表现出不寻常的aot样特征,但对病变进行了完全去核,组织病理学结果符合COC的诊断标准。术后6个月无复发。具有aot样特征的COCs是罕见的,反映了牙源性上皮与外间质诱导作用的多能性和复杂性。与经典COC类似,去核似乎是最适合的治疗方法。腺瘤样牙源性肿瘤;牙源性钙化囊肿;牙原性囊肿;口腔病理学;口腔外科。
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引用次数: 0
Analysis of biofilm formation by Candida albicans in different types of orthodontic fixed appliances and devices 白色念珠菌在不同类型正畸固定矫治器及装置中形成生物膜的分析
Q3 Dentistry Pub Date : 2023-01-01 DOI: 10.4322/bds.2023.e3440
Ellen Eduarda Fernandes, Daniela Fernandes Lobo Molica Oliveira, R. P. Jóias, P. A. Diniz, P. P. Barros, A. O. C. Jorge, W. Oliveira, S. Rode
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引用次数: 0
Dental care for patients with special needs at a private higher education institute 在私立高等教育机构为有特殊需要的病人提供牙科护理
Q3 Dentistry Pub Date : 2023-01-01 DOI: 10.4322/bds.2023.e3646
A. L. F. Ricardo, Rosemeire-Arai Yoshida, R. Guaré, C. Cardoso, S. Lopes, K. Fardim, A. Costa, Maria Teresa Santos
{"title":"Dental care for patients with special needs at a private higher education institute","authors":"A. L. F. Ricardo, Rosemeire-Arai Yoshida, R. Guaré, C. Cardoso, S. Lopes, K. Fardim, A. Costa, Maria Teresa Santos","doi":"10.4322/bds.2023.e3646","DOIUrl":"https://doi.org/10.4322/bds.2023.e3646","url":null,"abstract":"","PeriodicalId":37577,"journal":{"name":"Brazilian Dental Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86486501","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
Comparison of obturation quality, instrumentation time and post-operative pain using manual K-files and pediatric rotary files in primary molars a double blinded randomised clinical trial 一项双盲随机临床试验:手工k锉和小儿旋转锉在初级磨牙上的封闭质量、内固定时间和术后疼痛的比较
Q3 Dentistry Pub Date : 2023-01-01 DOI: 10.4322/bds.2023.e3497
L. Lakshmanan, M. Ramakrishnan, G. Jeevanandan
Objective: to compare the quality of obturation, instrumentation time and post-operative pain after pulpectomy in primary molars using manual K-files, Kedo-S and Kedo-S Square rotary file systems. Material and Methods: a double blinded randomized control trial was conducted in 45 children, who were indicated for pulpectomy in any one of the primary mandibular molars. The canal preparation was done using either hand K-files, Kedo-S files, or Kedo-S Square files based on the groups assigned. The time taken for instrumentation was recorded using a stopwatch. The quality of obturation was evaluated using post-operative radiograph and post-operative pain was assessed with modified Wong-Baker Faces Pain scale. Results: instrumentation time was minimum in rotary Kedo-S Square files (53.23 ± 9.60 seconds) followed by Kedo-S files (82.70 ± 11.86 seconds). The preparation time was maximum with manual K-files (121.43 ± 20.18 seconds). Kedo-S square files provided a higher number of optimally filled canals (66.4%). All the three instrumentations equally showed the tendency to produce voids in the obturation. Rotary files Kedo-S Square followed by Kedo-S showed less post-operative pain compared to K-files. Conclusion: the use of pediatric rotary instruments for canal preparation during pulpectomy will result in better quality of obturation in reduced time with least post-operative pain.
目的:比较手工k -锉、Kedo-S和Kedo-S Square旋转锉对一磨牙髓切除术后封闭质量、内固定时间和术后疼痛的影响。材料与方法:对45例患儿进行双盲随机对照试验,这些患儿适用于任意一颗下颌磨牙的牙髓切除。根据分配的组,使用了手k文件、Kedo-S文件或Kedo-S Square文件进行管道准备。仪器所用的时间用秒表记录下来。采用术后x线片评价封堵质量,采用改良的Wong-Baker Faces疼痛量表评价术后疼痛。结果:旋转式Kedo-S方形锉入样时间最短(53.23±9.60秒),其次为Kedo-S锉(82.70±11.86秒)。手工K-files的制备时间最长(121.43±20.18秒)。Kedo-S方形锉提供了更多的最佳填充管(66.4%)。所有三种仪器均显示出在闭孔中产生空隙的趋势。旋转锉Kedo-S Square与Kedo-S锉相比,术后疼痛减轻。结论:在取髓术中,使用儿童旋转器械预备椎管,可以在更短的时间内获得更好的封堵质量,术后疼痛最小。
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引用次数: 0
Effect of Thymoquinone on skeletal muscle regeneration via assessment of Pax-7 and Myo-D expression in the DMBA-treated hamster pouch 通过测定Pax-7和Myo-D在dba处理的仓鼠眼袋中的表达,百里醌对骨骼肌再生的影响
Q3 Dentistry Pub Date : 2023-01-01 DOI: 10.4322/bds.2023.e3620
Sara A Swidan, Samia Elazab, M. Hassan
Objective: Pax-7 and Myo-D regulate satellite cells’ activation and differentiation, thus muscle regeneration following damage. This research aimed to investigate the effect of Thymoquinone (TQ) on skeletal muscle regeneration following 7,12-dimethylbenz-(a)-anthracene (DMBA)-induced injury in the hamster buccal pouch via immunohistochemical assessment of Pax-7 and Myo-D expression. Material and Methods: 65 male golden Syrian hamsters were divided into 3 groups: Group 1: (n=5) received no treatment. Group 2: (n=20) served as a positive control. The left buccal pouches were painted with the carcinogen 3/week/ 6weeks. Group 3: (n=40) were subdivided into two equal sub-groups as follows: Group 3a: (n=20) were given one i.p. TQ injection. Group 3b: (n=20) were given two i.p. TQ injections. Five animals from each group (2 and 3) were euthanized at 24, 48 hrs, one, and two weeks after the last injection. A blood sample (2 ml) was withdrawn for assessment of TNF-α levels in serum. Serial sections of the pouches were examined histologically (H&E), and immunohistochemically (IHC) for the detection of Pax-7 and Myo-D proteins. Results: double i.p injections of TQ resulted in a significant elevation in the level of TNF-α from the second-day post-injection with a progressive formation of the muscle fibers (MFs) and mononuclear cells (MNCs) around the deeper blood vessels. At 14 days, no statistically significant difference was found between this group and group ‘2’, while the difference remained significant compared to groups ‘1’ and ‘3a’. The muscle fibers were more mature and compact. IHC results showed positive expression of the perivascular mononuclear cells (MNCs) to both Pax-7 and Myo-D with positive reactivity of the peripheral nuclei of muscle fibers to Pax-7 compared to the negative reaction in the positive control group. Conclusion: early and two TQ injections had a promising effect on the induction of striated muscle regeneration, mainly by non-myogenic stem cells.
目的:Pax-7和Myo-D调节卫星细胞的激活和分化,从而促进损伤后的肌肉再生。本研究旨在通过免疫组化检测Pax-7和Myo-D的表达,探讨百里醌(TQ)对7,12-二甲基苯-(a)-蒽(DMBA)诱导的仓鼠颊袋损伤后骨骼肌再生的影响。材料与方法:65只雄性金色叙利亚仓鼠分为3组:第一组:(n=5)不给药。第二组(n=20)为阳性对照。左颊袋涂刷致癌物3次/周/ 6周。第3组(n=40)分为2个等分组:第3a组(n=20)给予TQ注射液1 ig。3b组(n=20)给予TQ注射2次。最后一次注射后24、48小时、1、2周,每组5只(2、3)实施安乐死。抽取2ml血样,评估血清中TNF-α水平。对囊袋的连续切片进行组织学(H&E)和免疫组织化学(IHC)检查,以检测Pax-7和Myo-D蛋白。结果:从注射后第2天开始,双ig注射TQ导致TNF-α水平显著升高,血管深部周围肌肉纤维(MFs)和单个核细胞(MNCs)逐渐形成。第14天,该组与“2”组之间无统计学差异,而与“1”组和“3a”组相比差异仍有统计学意义。肌纤维更加成熟致密。免疫组化结果显示血管周围单核细胞(mnc)对Pax-7和Myo-D均有阳性表达,与阳性对照组相比,肌纤维外周核对Pax-7有阳性反应。结论:早期和两次注射TQ对诱导横纹肌再生有良好的效果,主要是由非肌源性干细胞诱导。
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引用次数: 0
Evaluating the efficacy of Etoricoxib in reducing post-operative pain associated with minor oral surgery. A randomized clinical trial 评价依托昔布减轻小口腔手术术后疼痛的疗效。一项随机临床试验
Q3 Dentistry Pub Date : 2023-01-01 DOI: 10.4322/bds.2023.e3854
Yusra Hameed AL-MUKHTAR, Zaid Hazim DELEME, Ahmed Salih KHUDHUR
Etoricoxib, a new cyclooxygenase-2-selective inhibitor has demonstrated a rapid onset analgesic effect for relieving acute pain especially when prescribed as a pre-emptive medication. On these bases, this study may provide useful information and guidance for clinicians working in the field of oral surgery, as regards handling odontogenic pain and postoperative pain precisely with cyclooxygenase-2 inhibitors. Objective: the study aimed to measure the quantifiable efficacy of Etoricoxib in reducing post-extraction pain in subjects undergoing minor oral surgical intervention as compared to Naproxen (a traditional NSAID) which is commonly used to control postoperative pain. Material and Methods: a 120 mg film-coated tablet of Etoricoxib was given to each of the twenty patients representing the study group, and a 500 mg tablet of Naproxen was given to each of the other twenty subjects representing the positive control group. According to manufacturer instructions, the tablets were given to the subjects 30 minutes pre-operatively (before dental extraction). Post-operative pain was assessed for each subject using eleven points from zero to ten, visual analog scale. Results: showed no statistically significant difference between Etoricoxib and Naproxen in decreasing post-extraction odontogenic pain, suggesting that Etoricoxib is as efficient as Naproxen in the control of discomfort with dental origin taking into consideration the patient’s status when prescribing the medication. Conclusion: this study suggests that Etoricoxib can be handled as a pre-emptive medication to reduce post-operative pain for subjects seeking traditional or surgical extraction of any of their teeth. KEYWORDS Etoricoxib; Pain; Oral surgery; Clinical Trial
依托妥昔布(Etoricoxib)是一种新型环氧化酶-2选择性抑制剂,具有快速镇痛作用,可缓解急性疼痛,特别是作为先发制人的药物。在此基础上,本研究可以为口腔外科的临床医生提供有用的信息和指导,以准确地使用环氧化酶-2抑制剂处理牙源性疼痛和术后疼痛。目的:本研究旨在衡量与萘普生(一种传统的非甾体抗炎药)相比,Etoricoxib在减轻小口腔手术患者拔牙后疼痛方面的可量化疗效,萘普生通常用于控制术后疼痛。材料与方法:作为研究组的20例患者每人给予Etoricoxib薄膜包衣片120mg,作为阳性对照组的20例患者每人给予萘普生片剂500mg。根据制造商的说明,这些药片在术前30分钟(拔牙前)给予受试者。术后疼痛采用视觉模拟量表从0到10的11分对每个受试者进行评估。结果:依托昔布与萘普生在减少拔牙后牙源性疼痛方面差异无统计学意义,说明依托昔布在控制牙源性不适方面与萘普生一样有效。结论:本研究表明,对于寻求传统或手术拔牙的受试者,依托妥昔布可以作为一种先发制人的药物来减少术后疼痛。关键词Etoricoxib;疼痛;口腔外科;临床试验
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引用次数: 0
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Brazilian Dental Science
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