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Radiographic Outcomes of Mineral Trioxide Aggregate (MTA) with and Without Platelet-Rich Fibrin (PRF) In Direct Pulp Capping: A Clinical Pilot Study 含或不含血小板富集纤维蛋白 (PRF) 的三氧化二铝矿物骨料 (MTA) 直接覆盖牙髓的放射学结果:临床试验研究
IF 0.7 Q4 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2023-12-20 DOI: 10.1177/23202068231210739
Meena Singh, A. Tikku, Promila Verma, Rakesh K. Yadav, Ramesh Bharti, Rhythm Bains
The purpose of the current investigation was to determine by radiographic means if a calcific dentinal bridge had formed following direct pulp capping (DPC) with calcium hydroxide (CH), mineral trioxide aggregate (MTA), or a combination of platelet-rich fibrin (PRF) and MTA. In the beginning, 45 systemically healthy patients who needed DPC and had pulpal exposure were enrolled in the trial. They were then randomly assigned to one of three groups: CH (control, n = 15), MTA ( n = 15), or PRF + MTA ( n = 15). To determine the radiographic density of the dentin immediately underneath the location of pulpal exposure, pre-operative intraoral digital radiographs of the afflicted teeth were acquired. Through sequential imaging, the radiographic evaluation of dentinal bridge formation was performed. All images were studied carefully, keeping the reference point constant. Out of the 45 patients, finally 10 per group were analysed. According to an analysis of variance, difference in mean density values among the various groups was found to be significant [( p = .001). On bi-group comparison (using post-Tukey HSD), difference between CH and PRF + MTA was significant ( p = .001), between MTA and PRF + MTA was significant ( p = .022), and between CH and MTA not significant ( p = .347)]. The PRF + MTA group showed the highest increase in mean density values. The results of the present study suggest that PRF and MTA when used in combination have better radiographic outcomes compared to MTA alone when used as DPC agents.
本次调查的目的是通过放射学手段确定在使用氢氧化钙(CH)、三氧化物矿物质聚合体(MTA)或富血小板纤维蛋白(PRF)和 MTA 混合液直接覆盖牙髓(DPC)后是否形成了钙化牙本质桥。一开始,45 名需要 DPC 并有牙髓暴露的全身健康患者被纳入试验。然后,他们被随机分配到三组中的一组:CH(对照组,n = 15)、MTA(n = 15)或 PRF + MTA(n = 15)。为了确定紧邻牙髓暴露位置下方的牙本质的放射密度,术前采集了患牙的口内数字放射照片。通过顺序成像,对牙本质桥的形成进行放射学评估。在保持参考点不变的情况下,对所有图像进行了仔细研究。在 45 名患者中,最终对每组 10 名患者进行了分析。根据方差分析,发现各组之间的平均密度值差异显著[(P = .001)。在双组比较中(使用后Tukey HSD),CH组和PRF + MTA组之间差异显著(p = .001),MTA组和PRF + MTA组之间差异显著(p = .022),CH组和MTA组之间差异不显著(p = .347)]。PRF + MTA 组的平均密度值增幅最大。本研究结果表明,与单独使用 MTA 作为 DPC 制剂相比,联合使用 PRF 和 MTA 有更好的放射学效果。
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引用次数: 0
Mineralized Collagen Fiber-based Dental Implant: Novel Perspectives 基于矿化胶原纤维的牙科植入物:新视角
IF 0.7 Q4 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2023-11-22 DOI: 10.1177/23202068231199545
R. Senthil, Roy Anitha, Thangavelu Lakshmi
One of the problems that dental bone defects commonly face is less biocompatibility. Therefore, it is important to find effective natural dental materials to increase the rate of cell viability. In the present work, a blend of mineralized collagen fiber (MCF)/silica nanoparticles (Si-NPs) is used to develop a dental implant (DI), for their possible application in dental bone repair. This research study was to develop a technique for the fabrication of DI using natural materials. Accordingly, the present work provides DI, essentially by PVA (6g): MCF (1.5g): Si-NPs (0.8g): CaCO3 (1.0g) slurry into DI with other conventional implants. The DI was characterized by its mechanical, physicochemical, and biocompatibility study. The mechanical analysis was statistically different in all three time periods ( p < .05). Surface characterization of DI was carried out before and after immersion in the SBF. The DI was excellent mechanical properties like compressive strength (24.22 ± 0.32 MPa) and elongation at break (16.51% ± 0.71%). The morphology of the DI showed a good pore size observed. Bioactivity test was observed on the Calcium/Phosphate of the DI. The biocompatibility of the study MTT (3-(4,5-dimethyl) thiazol-2-yl-2,5-dimethyl tetrazolium bromide) assay using the MG63 (human osteoblast cell line) has proven to more viable cell on the DI. The study has devised a process for using fish waste in the preparation of DI. The DI with the required strength, biocompatibility, and bone mineralization properties may be tried as a DI in large animals after obtaining the necessary approval.
牙槽骨缺损通常面临的问题之一是生物相容性较差。因此,寻找有效的天然牙科材料来提高细胞存活率非常重要。本研究利用矿化胶原纤维(MCF)/二氧化硅纳米颗粒(Si-NPs)的混合物来开发一种牙科植入物(DI),以便将其应用于牙科骨骼修复。这项研究旨在开发一种使用天然材料制造 DI 的技术。因此,目前的工作主要通过 PVA(6 克)提供 DI:MCF(1.5 克):Si-NPs(0.8 克):CaCO3(1.0 克)浆料与其他传统植入物一起制成 DI。对 DI 进行了机械、物理化学和生物相容性研究。所有三个时间段的机械分析均存在统计学差异(P < .05)。在 SBF 中浸泡前后,对 DI 进行了表面表征。DI 具有优异的机械性能,如抗压强度(24.22 ± 0.32 兆帕)和断裂伸长率(16.51% ± 0.71%)。DI 的形态显示出良好的孔径。对 DI 的钙/磷酸盐进行了生物活性测试。使用 MG63(人类成骨细胞系)进行的 MTT(3-(4,5-二甲基)噻唑-2-基-2,5-二甲基四唑溴化物)检测证明,DI 上的细胞存活率更高。这项研究设计了一种利用鱼类废弃物制备 DI 的工艺。具有所需强度、生物相容性和骨矿化特性的 DI 可在获得必要批准后作为 DI 在大型动物中试用。
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引用次数: 0
Do Polishing Methods and Colorant Beverages Affect the Color Stainability of 3D-printed Permanent Restorations? 抛光方法和着色剂饮料会影响3d打印永久性修复体的颜色不褪色吗?
Q4 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2023-11-01 DOI: 10.1177/23202068231199551
Bahadır Ezmek, Numan Aydin
Aim: This in vitro study evaluated the effect of polishing methods on the color stainability of 3D-printed permanent restorations while immersed in colorant beverages (distilled water, tea, coffee, and red wine) for 30 days. Materials and Methods: A total of 120-disc-shaped samples (10 mm × 1.5 mm) were fabricated using a stereolithography printer (Formlabs 3B, Formlabs, Massachusetts) with a three-dimensional (3D)-printable permanent resin (Permanent Crown, Formlabs, Massachusetts). The samples were polished with mechanical polishing, Optiglaze (GC Dental Products Corp, Aichi, Japan), or Vita Akzent LC (VITA Zahnfabrik, Bad Säckingen, Germany) ( n = 40). Initial color measurements were performed using a spectrophotometer (VITA Easyshade V; Vita Zahnfabrik). Then the samples were divided into four different subgroups depending on beverages immersed in distilled water, coffee, tea, and red wine ( n = 10). After immersion in beverages for 30 days, color measurements were repeated. Color changes were calculated using the CIEDE2000 color change (Δ E 00 ) formula. Δ E 00 was evaluated according to 50:50% color perceptibility (PT 00 = 0.81) and acceptability (AT 00 = 1.81) thresholds. A two-way analysis of variance (ANOVA), Tukey HSD test with Bonferroni adjustment, and paired-sample t-tests were used for statistical evaluation. Results: The highest ΔE 00 was noted in mechanical polishing groups ( p < .001). Red wine caused the most significant discoloration in the mechanical polishing group ( p < .05). ΔE 00 of mechanical polish groups showed a significantly higher color change than the perceptibility and acceptability thresholds ( p < .001). Optiglaze can reduce 3D-printed permanent restoration discoloration caused by all beverages, Vita Akzent LC can reduce discoloration caused by tea and red wine. Conclusion: Glaze materials can reduce the restoration discoloration caused by colorant beverages.
目的:本体外研究在着色剂饮料(蒸馏水、茶、咖啡和红酒)中浸泡30天,评估抛光方法对3d打印永久修复体颜色不染性的影响。材料和方法:使用立体光刻打印机(Formlabs 3B, Formlabs,马萨诸塞州)和三维(3D)可打印的永久树脂(permanent Crown, Formlabs,马萨诸塞州)制造总共120个圆盘状样品(10 mm × 1.5 mm)。样品用机械抛光、Optiglaze(日本爱ichi GC Dental Products Corp)或Vita Akzent LC(德国Bad Säckingen Vita Zahnfabrik)进行抛光(n = 40)。初始颜色测量使用分光光度计(VITA Easyshade V;维塔Zahnfabrik)。然后,根据浸泡在蒸馏水中的饮料、咖啡、茶和红酒,将样本分为四个不同的亚组(n = 10)。在饮料中浸泡30天后,重复进行颜色测量。使用CIEDE2000颜色变化(Δ E 00)公式计算颜色变化。Δ E 00根据50:50%的颜色感知(PT 00 = 0.81)和可接受性(AT 00 = 1.81)阈值进行评估。采用双向方差分析(ANOVA)、带Bonferroni校正的Tukey HSD检验和配对样本t检验进行统计学评价。结果:机械抛光组ΔE 00最高(p <措施)。在机械抛光组中,红酒引起的变色最为显著(p <. 05)。ΔE 00机械抛光组的颜色变化显著高于可感知和可接受阈值(p <措施)。Optiglaze可以减少所有饮料引起的3d打印永久性修复变色,Vita Akzent LC可以减少茶和红酒引起的变色。结论:釉料可减少因着色剂饮料引起的修复性变色。
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引用次数: 0
The Intraoral Findings of the Patient with Robinow Syndrome and the Related Dental Treatment Approaches: A Case Report Robinow综合征患者的口腔内表现及相关的牙科治疗方法1例报告
Q4 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2023-11-01 DOI: 10.1177/23202068231199538
Fatma Saraç, Aybike Baş, Periş Çelikel, Fatih Şengül
Initially defined by Robinow et al. in 1969, Robinow syndrome is an exceptionally uncommon (1:500,000) hereditary disorder showing five distinct phenotypes. Although skeletal system symptoms are intense in all phenotypes, maxillofacial indications and genital organ hypoplasia are also present. Maxillofacial appearances can be listed as follows: hypertelorism, midface hypoplasia, wide and flat nose, low nasal bridge, downturned oral commissures, low-set ears, and micrognathia. In oral manifestations, gingival hyperplasia, tongue, and dental abnormalities are frequently encountered. The detection of intraoral and extraoral findings by the dentist plays a significant role in the diagnosis of this disease. Additionally, every new case documented will help dentists plan treatment approaches. Therefore, in this case report we aimed to describe the manifestations of a patient with Robinow syndrome who was referred to us by a pediatric cardiologist for her dental treatments and also the treatment approach under general anesthesia.
Robinow综合征最初由Robinow等人于1969年定义,是一种异常罕见(1:50万)的遗传性疾病,表现为五种不同的表型。虽然骨骼系统症状在所有表型中都很强烈,但颌面指征和生殖器官发育不全也存在。颌面部表现如下:远视、中脸发育不全、鼻梁宽而平、鼻梁低、口裂下垂、耳位低、小颌。在口腔表现中,经常遇到牙龈增生、舌头和牙齿异常。由牙医检测口腔内和口腔外的发现在本病的诊断中起着重要作用。此外,每一个新的病例记录将有助于牙医计划治疗方法。因此,在这个病例报告中,我们的目的是描述一位患有Robinow综合征的患者的表现,她是由一位儿科心脏病专家转介给我们进行牙科治疗的,以及全身麻醉下的治疗方法。
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引用次数: 0
Effect of Bleaching on the Microhardness and Modulus of Elasticity of ACTIVA BioACTIVE – RESTORATIVE: An In Vitro Study 漂白对ACTIVA生物活性修复体显微硬度和弹性模量的影响:体外研究
Q4 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2023-10-29 DOI: 10.1177/23202068231199543
Sushritha Sricharan, Swaroop Hegde, Narmada J., Indiresha H. Narayana, Chatura Mohan, Nithin K. Shetty
Aim: Bleaching is reported to have a deleterious effect on the physical properties of composite material. There is a lack of studies evaluating the effect of bleaching on ACTIVA BioACTIVE – RESTORATIVE. The aim of this study was to evaluate the effects of bleaching on the microhardness and modulus of elasticity of ACTIVA BioACTIVE – RESTORATIVE. Materials and methods: In this in vitro study, the effect of bleaching on two restorative materials was tested. The two restorative materials ACTIVA BioACTIVE – RESTORATIVE and 3M Filtek Z350 Xt were subjected to bleaching with two concentrations of carbamide peroxide (15% and 35%). Measurements of Microhardness and Modulus of elasticity were recorded before and after the bleaching procedure. Data were checked for normality using the Shapiro–Wilk test. Unpaired t test was applied to compare mean of different variables across groups ( p < .0001). Results: The microhardness and modulus of elasticity was higher among the 3M Filtek Z350 Xt group when compared to ACTIVA BioACTIVE – RESTORATIVE. Approximately 35% carbamide peroxide showed the least values when compared to 15% carbamide peroxide. Conclusion: Within the limitation of this study it can be concluded that 15% and 35% carbamide peroxide significantly decreased the Microhardness and Modulus of Elasticity of ACTIVA BioACTIVE – RESTORATIVE and 3M Filtek Z350 Xt. The deleterious effect was concentration dependent as more effect was noted with 35% Carbamide Peroxide. Therefore, patients have to be advised that the existing composite restoration might become softer after bleaching.
目的:据报道,漂白对复合材料的物理性能有有害影响。目前还没有研究评价漂白对活动性生物活性恢复剂的影响。本研究的目的是评价漂白对ACTIVA BioACTIVE - RESTORATIVE的显微硬度和弹性模量的影响。材料和方法:在体外实验中,研究了漂白对两种修复材料的影响。两种修复材料ACTIVA BioACTIVE - restorative和3M Filtek Z350 Xt用两种浓度的过氧化脲(15%和35%)进行漂白。测定了漂白前后的显微硬度和弹性模量。使用Shapiro-Wilk检验检查数据的正态性。采用非配对t检验比较各组间不同变量的均值(p <。)。结果:与ACTIVA BioACTIVE - RESTORATIVE相比,3M Filtek Z350 Xt组的显微硬度和弹性模量更高。大约35%的过氧化脲与15%的过氧化脲相比值最小。结论:在本研究的限制范围内,可以得出15%和35%过氧化脲显著降低ACTIVA BioACTIVE - RESTORATIVE和3M Filtek Z350 Xt的显微硬度和弹性模量。有害影响是浓度依赖性的,35%过氧化脲的影响更大。因此,必须告知患者,现有的复合修复体在漂白后可能会变得更柔软。
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引用次数: 0
Patient Reported Outcome of Palatal Donor Site After Harvesting Connective Tissue Graft With or Without Platelet-rich Fibrin: A Prospective Clinical Study 有或没有富血小板纤维蛋白的结缔组织移植后腭供体部位患者报告的结果:一项前瞻性临床研究
Q4 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2023-10-29 DOI: 10.1177/23202068231202902
Shashank Yadav, Vivek Kumar Bains, Rohit Madan, Ruchi Srivastava, Sunakshi Soi
Aim: To evaluate the palatal donor site after harvesting connective tissue graft with or without platelet-rich fibrin (PRF). Material and Methods: Forty-two patients requiring connective tissue grafting were randomly divided into two groups: the experimental palatal donor site ( n = 21) received PRF before suturing, and the control palatal donor site ( n = 21) was sutured without any PRF. Results: Among 42 enrolled patients requiring connective tissue grafting, 34 patients completed the study. After 10 days, there was an increase in the average thickness of the palatal surgical test site in PRF-treated patients, whereas it decreased in non-PRF-treated patients. Patients’ response and acceptance for the surgical treatment modality in terms of Patient Comfort Score (PCS) and Patient Appearance Score (PAS) showed less discomfort and better/pleasing appearance in the experimental group after treatment as compared with the control group. “Absolute contour match” of the healing lesion to adjacent mucosa was observed in 76.5% of experimental sites, and no “absolute contour match” was observed with the adjacent non-surgical tissue in the control group, whereas, at 3 and 12 weeks, a 100% “absolute match” with the adjacent tissue was observed for all esthetic parameters in both groups. Conclusion: PRF usage at the donor site seems to be a simple less-invasive approach of high significance resulting in more accelerated physiological healing phenomenon and better early healing response.
目的:评价含或不含富血小板纤维蛋白(PRF)结缔组织移植后腭供区移植效果。材料与方法:将42例需要结缔组织移植的患者随机分为两组:实验组腭供区(n = 21)在缝合前接受PRF治疗,对照组腭供区(n = 21)不进行PRF治疗。结果:在42例需要结缔组织移植的患者中,34例患者完成了研究。10天后,接受prf治疗的患者的腭手术试验部位的平均厚度增加,而未接受prf治疗的患者的平均厚度减少。在患者舒适度评分(PCS)和患者外观评分(PAS)方面,实验组患者对手术治疗方式的反应和接受程度与对照组相比,治疗后的不适减少,外观更好/更愉快。76.5%的实验部位愈合病灶与邻近粘膜“绝对轮廓匹配”,对照组与邻近非手术组织无“绝对轮廓匹配”,而在3周和12周时,两组的所有美学参数均与邻近组织100%“绝对匹配”。结论:在供区使用PRF似乎是一种简单、微创、意义重大的方法,可加速生理愈合现象和更好的早期愈合反应。
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引用次数: 0
Orthodontic Management of Children with Beckwith-Wiedemann Syndrome: An Evidence-based Review 儿童Beckwith-Wiedemann综合征的正畸治疗:基于证据的综述
Q4 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2023-10-16 DOI: 10.1177/23202068231204676
Melina Koukou, Luay Jabr, Fawad Javed, Dimitrios Michelogiannakis
Background: Patients with Beckwith-Wiedemann syndrome (BWS) often present with macroglossia and aberrant dentoskeletal features, which may increase the prevalence of malocclusion and complicate conventional orthodontic management (OM). The aim was to comprehensively review the available literature regarding the OM of patients with BWS. Materials and Methods: Indexed databases were searched until February 2023. Clinical studies that addressed the dentoskeletal manifestations and OM of patients with BWS were included. A literature search was performed in accordance with the guidelines of the Preferred Reporting Items for Systematic Reviews and Meta-Analysis. Results: Notably, 8 out of 2,664 initially-identified studies were included. Six of the studies were case reports/case series and two were retrospective clinical studies. A total of 35 patients with BWS who received orthodontic treatment (OT) were included. Common dentoskeletal and soft tissue traits included the presence of macroglossia, obtuse gonial angle, and anterior open bite. Some form of maxillary transverse discrepancy was found in nine patients. The OT modalities that were utilized included extraoral appliances, functional appliances, removable appliances, interarch elastics, and fixed appliances. The outcome of the OT was reported as successful in five studies. The follow-up, as reported by three studies, ranged from 8 months to 6 years, and the results of the OT were maintained. Adjunct interdisciplinary therapeutic procedures included glossectomy, oral physiotherapy, and orthognathic surgery. Conclusions: Based upon limited available evidence, OT in conjunction with tongue reduction surgery and/or myofunctional therapy can be successfully performed in children with BWS to manage various dentoskeletal discrepancies.
背景:Beckwith-Wiedemann综合征(BWS)患者通常表现为巨舌和异常的牙骨骼特征,这可能增加错牙合的患病率,并使传统的正畸治疗(OM)复杂化。目的是全面回顾有关BWS患者OM的现有文献。材料和方法:检索索引数据库至2023年2月。纳入了有关BWS患者牙骨骼表现和OM的临床研究。根据系统评价和荟萃分析的首选报告项目指南进行文献检索。结果:值得注意的是,2,664项最初确定的研究中有8项被纳入。其中6项研究为病例报告/病例系列,2项为回顾性临床研究。本研究共纳入35例接受正畸治疗的BWS患者。常见的牙骨骼和软组织特征包括大舌骨、钝角和前开咬的存在。在9例患者中发现了某种形式的上颌横向差异。使用的OT方式包括口外矫治器、功能性矫治器、可移动矫治器、弓间弹性矫治器和固定矫治器。在五项研究中,OT的结果被报道为成功的。据3项研究报道,随访时间从8个月到6年不等,OT的结果得到了维持。辅助的跨学科治疗程序包括舌骨切除术、口腔物理治疗和正颌手术。结论:基于有限的现有证据,OT结合舌缩小手术和/或肌功能治疗可以成功地治疗BWS儿童的各种牙骨骼差异。
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引用次数: 0
Computed Tomographic Study of Variants of Deviated Nasal Septum in Adult Population: A Descriptive, Cross-sectional, Hospital-based Study 成人鼻中隔变异的计算机断层扫描研究:一项描述性、横断面、基于医院的研究
Q4 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2023-10-14 DOI: 10.1177/23202068231205080
Kosha N. Thakker, Shilpa J. Parikh, Pritesh B. Ruparelia
Background: Deviated nasal septum (DNS) is an influential variant of the sinonasal region due to its possible association with varied sinonasal pathologies, mid-facial (skeletal or occlusal) disharmonies and orofacial pain disorders. The aim of the study is to document the prevalence of DNS and to observe and assess the radiographic attributes of its types in adults. Materials and Methods: It is a descriptive cross-sectional study in which, after getting ethical approval, computed tomography paranasal sinus volumes of 100 adult subjects are collected from the medical college on the basis of convenience sampling. Paediatric subjects and patients with a previous history of mid-facial trauma, malignancy or surgery are excluded from the study. DICOM data thus collected are retrospectively analysed by RadiAnt DICOM viewer to determine the prevalence of DNS to study its association across gender and with increased (>1 mm) mucosal thickening of the maxillary sinus. DNS is recorded by Mladina’s classification and by septal deviation angle, and association is studied by the Chi-square test and Mann–Whitney U test. Results: The overall prevalence of DNS is 82%. Association of deviated septum with gender and mucosal thickening of the sinus lining is not statistically significant. Overall type V (spur) deviation is most common; however, in subjects with thickened mucosal lining type III (“C” or reverse “C”), deviation is found to be most prevalent. All the cases of type VI deviation have a tilted nasal floor, a finding of dental surgeon’s interest. “Bridging Spur,” an uncommon form of spur deformity, is also recorded in one case. Conclusions: Deviated septum is far more common than straight septum in the adult population. Types III, II and IV are more frequent in subjects with increased mucosal thickening. Association of type VI with tilted floor and rare variants like “Bridging spur” is also reported.
背景:鼻中隔偏曲(DNS)是一种有影响的鼻窦变型,它可能与各种鼻窦病变、面部中部(骨骼或咬合)不和谐和口面部疼痛疾病有关。该研究的目的是记录DNS的患病率,并观察和评估其类型在成人中的放射学特征。材料与方法:本研究为描述性横断面研究,经伦理批准,在方便抽样的基础上,从医学院校收集100名成年受试者的鼻窦ct容积。儿科受试者和既往有面部中外伤、恶性肿瘤或手术史的患者被排除在研究之外。收集的DICOM数据通过RadiAnt DICOM查看器进行回顾性分析,以确定DNS的患病率,并研究其与性别和上颌窦粘膜增厚增加(>1 mm)的关系。DNS采用Mladina分类法和间隔偏角法记录,并采用卡方检验和Mann-Whitney U检验研究相关性。结果:DNS总患病率为82%。鼻中隔偏曲与性别及窦内粘膜增厚的关系无统计学意义。整体V型(直刺)偏差最常见;然而,在III型(“C”或反“C”)粘膜衬里增厚的受试者中,偏差最为普遍。所有VI型偏差的病例都有鼻底倾斜,这是牙科医生感兴趣的发现。“桥接骨刺”,一种不常见的骨刺畸形,也记录在一个病例中。结论:成人鼻中隔偏曲远比鼻中隔直多见。III型、II型和IV型在粘膜增厚增加的受试者中更为常见。VI型与倾斜地板和罕见变异如“桥接骨刺”的关联也有报道。
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引用次数: 0
Comparison of the Efficacy of 17% EDTA and 17% EDTA-S as Root Conditioning Agents: An in vitro Study 17% EDTA和17% EDTA- s作为根部调理剂的体外研究
Q4 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2023-10-13 DOI: 10.1177/23202068231202195
T. Anurag, Mohan Kumar Pasupuleti, Gautami S. Penmetsa, Sruthima N.V.S. Gottumukkala, K.S.V. Ramesh, Vivek Bypalli
Objectives: The study’s objective is to assess the capacity of 17% EDTA (ethylene diamine tetraacetic acid) and 17% EDTA-S (sodium lauryl sulphate) on periodontally infected root surfaces as well as their capacity to remove the smear layer. Methods: Groups A (EDTA) and B (EDTA-S) were randomly selected from among 40 single-rooted teeth that had to be extracted due to the mobility. Sections of these teeth were subjected to a 3-minute “Active Burnishing Technique” treatment with 17% EDTA and 17% EDTA-S, followed by a 2-minute saline washing, and then investigated by using an electron microscope. The teeth’s root surface changes were evaluated using Sampaio’s Index, surface morphology, smear layer presence, dentinal tubule patency, and other factors. The results of this study were statistically examined using the paired “t” test. The significance threshold was established at P-value = .05. Results: The outcomes demonstrated that Group B benefited statistically from the elimination of the smear layer and the patency of the dentinal tubules ( P < .01). In the EDTA and EDTA-S groups, there were 85.508.75 and 91.706.20 patent dentinal tubules revealed, respectively. The total surface area exposed by EDTA was 163.88 ± 24.68 and EDTA-S was 182.91 ± 28.16 with a P-value <.01. Conclusion: According to the study’s findings, as compared to EDTA, EDTA-S is more successful at exposing dentinal tubules and removing the smear layer, making it a useful root conditioning agent.
目的:本研究的目的是评估17% EDTA(乙二胺四乙酸)和17% EDTA- s(十二烷基硫酸钠)在牙周感染的根表面的能力以及它们去除涂片层的能力。方法:从40颗因活动而必须拔除的单根牙中随机选择A组(EDTA)和B组(EDTA- s)。将这些牙齿切片用17% EDTA和17% EDTA- s进行3分钟的“主动抛光技术”处理,然后进行2分钟的生理盐水洗涤,然后使用电子显微镜进行观察。采用Sampaio’s指数、牙根表面形态、涂片层有无、牙本质小管通畅等指标评价牙根表面变化。本研究结果采用配对“t”检验进行统计学检验。显著性阈值设为p值= 0.05。结果:结果显示,B组在涂片层消除和牙本质小管通畅方面有统计学上的获益(P <. 01)。EDTA组和EDTA- s组分别有85.508.75个和91.706.20个未闭牙髓小管。EDTA总暴露表面积为163.88±24.68,EDTA- s为182.91±28.16,p值为0.01。结论:与EDTA相比,EDTA- s在暴露牙本质小管和去除涂抹层方面更成功,是一种有用的牙根调理剂。
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引用次数: 0
Occlusal Contact Changes With Traumatic Occlusion After Orthodontic Treatment: A Prospective Study 正畸治疗后创伤性咬合的咬合接触改变:一项前瞻性研究
Q4 DENTISTRY, ORAL SURGERY & MEDICINE Pub Date : 2023-10-02 DOI: 10.1177/23202068231190202
None Sowmithra Devi S, Shantha Sundari
Aim: The aim of this study was to evaluate trauma from occlusion in patients undergoing orthodontic treatment through assessment of fremitus, pocket depth, gingival biotype, and occlusal contacts pre-orthodontic treatment (T0) and post-orthodontic treatment (T1). Materials and Methods: This prospective randomized trial included 40 participants selected based on a simple random sampling method, of which 27 were women and 13 were men with ages ranging from 25 to 40 years. All the participants were clinically checked for gingival recession, fremitus, pocket depth, gingival biotype, and occlusal contacts obtained via digital intraoral scans and fed to 3Shape software to perform the occlusal mapping analysis for pre-orthodontic treatment (T0) and post-orthodontic treatment (T1). T-Scan occlusal analysis was performed to check the force levels pertaining to each tooth. A paired t-test was done to find out the changes in fremitus, pocket depth, gingival biotype, and number of occlusal contacts between T0 and T1. Results: Results of paired t-tests showed a statistically significant difference for fremitus between T0 and T1 ( p < .05). Gingival biotype and pocket depth did not show any improvement post-orthodontic treatment (T1) ( p > .05). Number of traumatic occlusal contacts reduced at T1 for incisors and canines showing a statistically significant difference between T0 and T1 ( p < .05). Conclusion: Orthodontic treatment helps in relieving the traumatic occlusal contacts, especially in the incisors and canine regions. As the teeth are relieved from traumatic occlusal contacts, fremitus also has shown to have drastically improved at the end of orthodontic treatment. Gingival biotype and pocket depth might take a longer time to regenerate and improve, which requires long-term observation.
目的:本研究的目的是通过评估正畸治疗前(T0)和正畸治疗后(T1)的牙根松度、牙袋深度、牙龈生物类型和咬合接触来评估正畸治疗患者的咬合创伤。材料与方法:本前瞻性随机试验采用简单随机抽样法选取40例受试者,其中女性27例,男性13例,年龄25 ~ 40岁。通过数字口腔内扫描检查所有参与者的牙龈退行、牙龈炎、牙袋深度、牙龈生物型和咬合接触,并将其输入3Shape软件,进行正畸前治疗(T0)和正畸后治疗(T1)的咬合映射分析。进行t扫描咬合分析以检查与每颗牙齿相关的力水平。配对t检验观察T0与T1间牙龈炎、牙袋深度、牙龈生物型、咬合接触次数的变化。结果:配对t检验结果显示,T0和T1之间的ffresus差异有统计学意义(p <. 05)。正畸治疗后,牙龈生物型和牙袋深度没有任何改善(T1) (p >. 05)。T1时门牙和犬齿创伤性咬合接触次数减少,T0和T1间差异有统计学意义(p <. 05)。结论:正畸治疗有助于缓解创伤性咬合接触,尤其是门牙和犬齿区域。由于牙齿从创伤性咬合接触中解脱出来,在正畸治疗结束时也显示出明显改善。牙龈生物型和牙龈袋深度可能需要较长时间才能再生和改善,需要长期观察。
{"title":"Occlusal Contact Changes With Traumatic Occlusion After Orthodontic Treatment: A Prospective Study","authors":"None Sowmithra Devi S, Shantha Sundari","doi":"10.1177/23202068231190202","DOIUrl":"https://doi.org/10.1177/23202068231190202","url":null,"abstract":"Aim: The aim of this study was to evaluate trauma from occlusion in patients undergoing orthodontic treatment through assessment of fremitus, pocket depth, gingival biotype, and occlusal contacts pre-orthodontic treatment (T0) and post-orthodontic treatment (T1). Materials and Methods: This prospective randomized trial included 40 participants selected based on a simple random sampling method, of which 27 were women and 13 were men with ages ranging from 25 to 40 years. All the participants were clinically checked for gingival recession, fremitus, pocket depth, gingival biotype, and occlusal contacts obtained via digital intraoral scans and fed to 3Shape software to perform the occlusal mapping analysis for pre-orthodontic treatment (T0) and post-orthodontic treatment (T1). T-Scan occlusal analysis was performed to check the force levels pertaining to each tooth. A paired t-test was done to find out the changes in fremitus, pocket depth, gingival biotype, and number of occlusal contacts between T0 and T1. Results: Results of paired t-tests showed a statistically significant difference for fremitus between T0 and T1 ( p < .05). Gingival biotype and pocket depth did not show any improvement post-orthodontic treatment (T1) ( p > .05). Number of traumatic occlusal contacts reduced at T1 for incisors and canines showing a statistically significant difference between T0 and T1 ( p < .05). Conclusion: Orthodontic treatment helps in relieving the traumatic occlusal contacts, especially in the incisors and canine regions. As the teeth are relieved from traumatic occlusal contacts, fremitus also has shown to have drastically improved at the end of orthodontic treatment. Gingival biotype and pocket depth might take a longer time to regenerate and improve, which requires long-term observation.","PeriodicalId":43017,"journal":{"name":"Journal of Advanced Oral Research","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135900243","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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Journal of Advanced Oral Research
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