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Assessment of serum and gingival crevicular fluid level of fibroblast growth factor 23 in patients having diseased periodontium with and without end-stage renal disease: A cross-sectional analytical study 成纤维细胞生长因子23在患有和不患有终末期肾病的牙周病患者血清和龈沟液水平的评估:一项横断面分析研究
IF 0.7 Q4 Dentistry Pub Date : 2022-11-01 DOI: 10.4103/jioh.jioh_175_22
Dalia M Ghalwash, Asmaa A Ras, Eman S Khalil, Enji Ahmed
Aim: The aim of this study was to compare serum and gingival crevicular fluid (GCF) levels of fibroblast growth factor 23 (FGF23) in healthy patients with periodontitis versus gingivitis in end-stage renal disease (ESRD) patients undergoing hemodialysis and periodontitis in patients with ESRD undergoing hemodialysis. Materials and Methods: The study design was a cross-sectional analytical study that included a total of 45 patients with periodontal disease that were divided into three groups with 15 in each group. Group I (n = 15) was systemically healthy having periodontitis, group II (n = 15) had ESRD and gingivitis, and group III (n = 15) had ESRD and periodontitis. The clinical parameters for gingivitis and periodontitis, level of FGF in serum, and GCF were all evaluated in the three groups and the results were compared. Results: FGF23 levels in GCF and serum were statistically significantly higher in group III: ESRD with periodontitis (534 ± 92.7) and (448.2 ± 274.5), respectively, followed by group II: ESRD with gingivitis (150 ± 33.4) and (242.1 ± 31.1), respectively, while were significantly lower in group I: healthy patients with periodontitis (53.7 ± 8.1) and (52.9 ± 6.3), respectively, with a significant difference between the three groups with P < 0.001. Conclusion: Periodontitis patients on hemodialysis showed higher clinical scores (plaque index, bleeding on probing %, pocket depth, and clinical attachment loss) as compared with their counterparts with free medical conditions. The adverse effect of both periodontal and renal disease on clinical presentation and inflammatory markers were strongly evident by the high serum and GCF FGF23 levels with ESRD having the strongest impact.
目的:本研究的目的是比较健康牙周炎患者与接受血液透析的终末期肾病(ESRD)患者牙龈炎和接受血液透析的ESRD患者牙周炎的血清和牙龈沟液(GCF)水平。材料和方法:研究设计为横断面分析研究,共纳入45例牙周病患者,分为三组,每组15例。I组(n = 15)为全身健康,有牙周炎,II组(n = 15)有ESRD和牙龈炎,III组(n = 15)有ESRD和牙周炎。评估三组患者牙龈炎、牙周炎的临床指标、血清FGF水平、GCF水平,并进行比较。结果:ESRD合并牙周炎组GCF和血清中FGF23水平分别高于III组(534±92.7)和(448.2±274.5),其次是II组:ESRD合并牙龈炎组(150±33.4)和(242.1±31.1),而I组:健康患者合并牙周炎组(53.7±8.1)和(52.9±6.3),三组间差异均有统计学意义,P < 0.001。结论:接受血液透析治疗的牙周炎患者的临床评分(菌斑指数、探诊出血%、牙袋深度、临床附着丧失)高于无医疗条件的患者。牙周和肾脏疾病对临床表现和炎症标志物的不良影响通过高血清和GCF FGF23水平明显可见,其中ESRD的影响最大。
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引用次数: 0
Assessment of microtensile bond strength of silver diamine fluoride with potassium iodide–treated carious primary dentin restored with glass ionomer cement and/or composite: In vitro study 评价氟化二胺银与碘化钾处理的牙本质用玻璃离子水合物和/或复合材料修复的微拉伸结合强度:体外研究
IF 0.7 Q4 Dentistry Pub Date : 2022-11-01 DOI: 10.4103/jioh.jioh_107_22
JJ Winnier, ZainebM F Haradwala, ArwaM Soni, Ishani Ratnaparkhi, H. Kadhi
Aim: Silver diamine fluoride (SDF) followed by potassium iodide (KI) application helps minimize discoloration; however, such an application may interfere with the bond strength of the restorative material. The aim was to assess the microtensile bond strength (mTBS) of SDF with KI–treated carious primary dentin, which were restored immediately or on the seventh day with glass ionomer cement (GIC) and/or composite resin. Materials and Methods: Thirty-six carious primary molars were collected, and gross debris was removed. Prior to the placement of the restoration, SDF/KI was applied to all the specimens and divided randomly into group I: immediate placement of restoration, and group II: seventh-day placement of restoration (n = 18, per group). Group I was further divided into group Ia: GIC was placed immediately, and group Ib: composite resin was placed. Group II was divided into group IIa: GIC placed on the seventh day, and group IIb: composite placed on the seventh day (n = 9, per group). The specimens were then stored in artificial saliva at 37°C. After 7 days, the specimens were sliced for microtensile strength test using a slow-speed diamond saw (Isomet 1000). The failure mode was evaluated with stereomicroscope at 40× magnification. Results: The mTBS was compared using Kruskal–Wallis test. Group Ib (immediate composite) showed the highest bond strength (1.71 ± 0.80) though this difference was not statistically significant (P = 0.88). The failure modes were compared using chi-square test, which showed no statistically significant difference between the groups. Conclusion: The mTBS showed no difference with the time of placement between the materials.
目的:氟化二胺银(SDF)后碘化钾(KI)应用有助于减少变色;然而,这样的应用可能干扰修复材料的粘结强度。目的是评估SDF与ki处理的牙本质的微拉伸结合强度(mTBS),这些牙本质在第7天立即或用玻璃离子水合物(GIC)和/或复合树脂修复。材料与方法:收集36颗患龋的一磨牙,清除残体。在修复体放置前,将所有标本应用SDF/KI,随机分为I组:立即放置修复体,II组:第7天放置修复体(n = 18,每组)。I组进一步分为Ia组:即刻置入GIC, Ib组:置入复合树脂。II组分为IIa组:置入第7天的GIC组,IIb组:置入第7天的composite组(n = 9,每组)。标本保存于37℃人工唾液中。7天后,用慢速金刚石锯(Isomet 1000)切片进行微拉伸强度测试。用40倍体视显微镜观察其失效模式。结果:采用Kruskal-Wallis试验比较mTBS。Ib组(即刻复合)粘结强度最高(1.71±0.80),但差异无统计学意义(P = 0.88)。失效模式比较采用卡方检验,两组间差异无统计学意义。结论:两种材料放置时间对mTBS无显著影响。
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引用次数: 0
Novel endodontic simulation trainer for dental pulpotomy and pulp capping 新型牙髓切开术和盖髓术牙髓模拟训练器
IF 0.7 Q4 Dentistry Pub Date : 2022-11-01 DOI: 10.4103/jioh.jioh_137_22
David Livingstone, Shivasakthy Manivasakan, P. Shivashankarappa
Pulp exposures are the common problems encountered during the management of deep carious lesions in children and adolescents. The clinical skill plays an important role to achieve cooperation, reduced chair side time, and total patient care. This article describes a novel endodontic simulation trainer for dental pulpotomy and pulp capping. The simulator described in the article provides advantages such as life size design, easy to use, and cheaper to fabricate with good functional fidelity. This invention has the advantage that the pellet is replaceable, and so the procedure can be done multiple times simply by replacing it with a new pellet.
牙髓暴露是儿童和青少年在治疗深部龋齿时遇到的常见问题。临床技能在实现合作、减少椅子旁时间和全面的病人护理方面起着重要作用。本文介绍了一种用于牙髓切开术和牙髓盖上的新型牙髓模拟训练器。本文所述的仿真器具有实物尺寸设计、使用方便、制造成本低、功能逼真度好等优点。本发明的优点是颗粒是可更换的,因此只需用新颗粒替换即可多次完成该过程。
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引用次数: 0
The effect of implant length and diameter on primary stability of tilted implant on D4 bone density: An in vitro study 种植体长度和直径对D4骨密度倾斜种植体初始稳定性的影响:体外研究
IF 0.7 Q4 Dentistry Pub Date : 2022-09-01 DOI: 10.4103/jioh.jioh_65_22
Muhammad Baihaqi, Taufik Sumarsongko, Setyawan Bonifacius
Aim: To determine the effect of implant length and diameter on the primary stability of tilted dental implant and D4 bone density. Materials and Methods: Superline implant with different lengths (12 mm and 14 mm) and diameters (4 mm and 5 mm) as well as the path of placement inclinations (0°, 15°, 30°, 45°) were used in this true experimental study design with 48 samples and allocated into 16 groups with repeated three times (based on Federer’s formula). Artificial polyurethane bone blocks, 20 pounds per cubic foot (0.32 g/cm3), were prepared, and each implant was inserted following the manufacturer’s instruction. Primary implant stability was measured using Osstell tool. The procedure was repeated three times for each implant at four different 90° orientation or from buccal, lingual, mesial, and distal. The mean value for implant stability quotient (ISQ) was calculated using statistical analysis. Data distributed normally, and univariate analysis of variance was the statistical formula used to calculate any differences in the primary stability values of each group. Post hoc test was further utilized as a t-test to compare each group, which showed good scores for the primary stability. Results: The results of this study reveal that there was a significant difference in the primary stability of tilted implant at different lengths and diameters. Implants with a length of 14 mm and a diameter of 5 mm at 45° inclination resulted in the highest ISQ score with an average of 72.25. Implants with a length of 12 mm and a diameter of 4 mm at 15° inclination had the lowest ISQ score with an average of 63.58. Implants with an inclination of 45° showed no difference in the mean value of the primary stability against implants in the upright position (0°). Conclusion: The longer and wider the implants in the tilted position have better primary stability in D4 bone density.
目的:确定种植体长度和直径对倾斜种植体初始稳定性和D4骨密度的影响。材料和方法:不同长度的Superline植入物(12 mm和14 mm)和直径(4 mm和5 mm)以及放置倾斜的路径(0°、15°、30°、45°)用于该真实的实验研究设计,共有48个样本,并分为16组,重复三次(基于费德勒公式)。人造聚氨酯骨块,每立方英尺20磅(0.32 g/cm3),并按照制造商的说明插入每个植入物。使用Osstell工具测量初次植入物的稳定性。每个植入物在四个不同的90°方向或从颊侧、舌侧、近中侧和远端重复该程序三次。使用统计分析计算植入物稳定性商(ISQ)的平均值。数据正态分布,单变量方差分析是用于计算各组主要稳定性值差异的统计公式。进一步利用事后检验作为t检验来比较各组,结果显示初级稳定性得分良好。结果:本研究结果表明,不同长度和直径的倾斜植入物的初始稳定性存在显著差异。长度为14的植入物 mm,直径为5 倾斜45°时,ISQ得分最高,平均为72.25。长度为12的植入物 mm,直径为4 mm倾斜15°时的ISQ得分最低,平均为63.58。倾斜45°的植入物与直立位置(0°)的植入物相比,主要稳定性的平均值没有差异。结论:倾斜位种植体越长越宽,D4骨密度的初始稳定性越好。
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引用次数: 0
Prevalence of orthodontic and prosthodontic treatment needs in differently abled population—A systematic review 不同能力人群正畸和修复治疗需求的患病率-一项系统综述
IF 0.7 Q4 Dentistry Pub Date : 2022-09-01 DOI: 10.4103/jioh.jioh_311_21
S. Pradeep, Mysore Dakshayini, H. Thippeswamy, Nanditha Kumar
Aim: This systematic review assesses the severity and complexity of orthodontic treatment needs and prosthodontic requirements among differently abled population. Materials and Methods: An online search was conducted on Medline-PubMed, Cochrane database, and Embase databases from December 1980 to 2020. There were nine and five articles to determine the prevalence of malocclusion and prosthodontic treatment needs, after a thorough evaluation of the severity and complexity of orthodontic treatment needs and prosthodontic requirements for the differently abled population. Results: In this systematic review, the prevalence of orthodontic needs among individuals with special healthcare needs, specifically those with intellectual disability/Down syndrome/cerebral palsy, varied from 18.9% to 62.3%, and from 0% to 46.5% for prosthodontic treatment needs. Conclusions: This study concluded that differently abled individuals have orthodontic and prosthodontic needs far higher than their status. Malocclusion and missing teeth together can harm the individual’s “quality of life” in physical pain and social disabilities.
目的:本系统综述评估不同能力人群正畸治疗需求和修复需求的严重程度和复杂性。材料与方法:从1980年12月至2020年12月在线检索Medline-PubMed、Cochrane数据库和Embase数据库。在对不同能力人群的正畸治疗需求和修复需求的严重程度和复杂性进行全面评估后,分别有9篇和5篇文章确定了错牙合的患病率和修复治疗需求。结果:在本系统综述中,有特殊保健需求的个体,特别是智力残疾/唐氏综合征/脑瘫患者,正畸需求的患病率从18.9%到62.3%不等,修复治疗需求的患病率从0%到46.5%不等。结论:本研究的结论是,不同能力个体的正畸和修复需求远远高于他们的地位。错牙合和缺牙一起会损害个人的“生活质量”,造成身体疼痛和社交障碍。
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引用次数: 0
Surgical obturator as an immediate prosthesis post hemimaxillectomy of palatal squamous cell carcinoma: A case report 腭部鳞状细胞癌半上颌骨切除术后即刻修复的手术闭孔1例
IF 0.7 Q4 Dentistry Pub Date : 2022-09-01 DOI: 10.4103/jioh.jioh_251_21
R. Sitalaksmi, M. Ari, Karina Mundiratri, R. Sanjaya, T. Pramesti, A. Dahlan
Surgical management of oral squamous cell carcinoma results in significant defects in the oral and maxillofacial regions. This case study aims to support the formation of an intraoral defect profile, shorten recovery time, and improve the patient’s psychological aspects by inserting a postoperative surgical obturator. A 44-years-old male presented to Dental Hospital Universitas Airlangga at the referral from General Hospital Dr. Soetomo Head and Neck Surgery Department due to recurrent palatal squamous cell carcinoma. The patient required a surgical obturator to restore anatomical defect post-hemimaxillectomy. Multidiscipline discussion forums were performed to determine the plan for tissue removal, and the prosthodontist designed the surgical obturator. The design was made utilizing the retention of the remaining 17 and 27 teeth with Adams claps. In this case, mechanical retention was achieved by a wire, which was attached to the zygoma bone. The artificial teeth were arranged in the anterior area to improve aesthetic, while in the posterior region, the artificial teeth were not used to minimize the masticatory loading. Surgical obturator improved the masticatory function and psychology of the patient.
口腔鳞状细胞癌的外科治疗会导致口腔颌面部的严重缺陷。本病例研究旨在通过插入术后手术闭孔来支持口内缺损轮廓的形成,缩短恢复时间,并改善患者的心理状况。一名44岁男性因复发性腭鳞状细胞癌,在综合医院Soetomo头颈外科医生的转诊下被送往Airlangga大学牙科医院。患者需要手术闭孔来恢复半上颌骨切除术后的解剖缺陷。进行了多学科讨论论坛,以确定组织切除的计划,修复学家设计了手术闭孔。该设计是利用亚当斯咬合保留剩余的17颗和27颗牙齿。在这种情况下,通过连接到颧骨上的金属丝来实现机械保持。将假牙布置在前部区域以提高美观性,而在后部区域,不使用假牙以最小化咀嚼负荷。手术闭孔改善了患者的咀嚼功能和心理。
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引用次数: 0
Impact of maturation time on the shear bond strength of an alkasite restorative material to pure tricalcium silicate based cement: An in-vitro experimental study 成熟时间对碱土修复材料与纯硅酸三钙基水泥剪切结合强度的影响:体外实验研究
IF 0.7 Q4 Dentistry Pub Date : 2022-09-01 DOI: 10.4103/jioh.jioh_326_21
Arun Mayya, A. George, Anoop Mayya, S. D’souza, Shreemathi S. Mayya
Aim: To evaluate the shear bond strength of pure tricalcium silicate-based cement (Biodentine) to Cention N between two maturation times of Biodentine, namely 12 minutes and 2 weeks. Materials and Methods: 30 acrylic blocks with a hole (3 mm in diameter and 1.5 mm in height) were prepared. Biodentine was mixed according to the manufacturer’s instructions and placed into the holes. The Samples were randomly divided into two groups. In group 1, Cention N was bonded to the Biodentine after 12 mins; in group 2, Cention N was bonded to Biodentine after 2 weeks. A plastic cylinder of height and diameter 2 mm was used to place Cention N over the Biodentine. A universal testing machine was used to measure the shear bond strength of the specimen. Data was analysed using SPSS V15.0. South Asia, Bangalore. Independent sample t-test was applied to compare the mean of the maximum compressive stress of the two groups. Result: Group 2 demonstrated significantly higher shear bond strength values compared to group 1. Lower shear bond strength testing values were observed when Cention N was bonded to an initially set Biodentine. Conclusion: The maturation period of Biodentine has a significant impact on its shear bond strength to Cention N. It is advisable to place the final overlying restoration after waiting for a duration of two weeks to allow the Biodentine maturation to take place.
目的:评价纯硅酸三钙基水泥(Biodentine)在两个成熟时间(即12分钟和2周)与Cention N的剪切结合强度。材料和方法:30块带孔丙烯酸块(3 直径mm,1.5 高度为mm)。根据制造商的说明混合生物牙本质,并将其放入孔中。将样本随机分为两组。在第1组中,Cention N在12分钟后与生物牙本质结合;在第2组中,Cention N在2周后与Biodentine结合。高度和直径为2的塑料圆柱体 mm将Cention N放置在Biodentine上。使用万能试验机测量试样的剪切结合强度。使用SPSS V15.0对数据进行分析。南亚,班加罗尔。采用独立样本t检验来比较两组的最大压缩应力平均值。结果:与第1组相比,第2组表现出显著更高的剪切结合强度值。当Cention N结合到初始设置的Biodentine时,观察到较低的剪切结合强度测试值。结论:生物牙本质的成熟期对其与Cention N的剪切结合强度有显著影响。建议在等待两周后放置最后的上覆修复体,以使生物牙本质成熟。
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引用次数: 2
Knowledge, attitudes, and practices on oral health prevention associated with sociodemographic factors of adolescent students from a Peruvian-Swiss educational institution 秘鲁-瑞士教育机构青少年学生口腔健康预防知识、态度和实践与社会人口因素的关系
IF 0.7 Q4 Dentistry Pub Date : 2022-09-01 DOI: 10.4103/jioh.jioh_120_22
Clifford Allen-Revoredo, Marysela I Ladera-Castañeda, Nancy Córdova-Limaylla, Gissela Briceño-Vergel, Luis A. Cervantes-Ganoza, C. Cayo-Rojas
Aim: Adolescents experience a period in their lives when major variations in their development occur, in addition to establishing practices and attitudes that will play an important role in their general health care, which will have an impact on their well-being and life quality in the future. Therefore, the aim of this study was to determine how knowledge, attitudes, and practices on oral health prevention are related to sociodemographic factors of adolescent students in a Peruvian-Swiss Educational Institution. Materials and Methods: This observational and cross-sectional study in 154 adolescent students obtained by stratified random sampling was carried out during November to December 2021. A questionnaire validated by the Peruvian Association of Preventive and Social Dentistry (APOPS) was employed. For statistical analysis a Pearson’s chi-square test was applied, in addition to a logit model using odds ratio (OR) to evaluate knowledge, attitudes and practices on oral health prevention with the variables age, sex, academic level, family structure, educational level of parent or guardian, and nationality. A significance level of P < 0.05 was considered. Results: Of all the students, 44.81% presented insufficient knowledge, whereas 26.62% showed an unfavorable attitude and 1.95% reported incorrect practices. On the contrary, knowledge about oral health prevention was significantly associated with age group (P = 0.002), academic level (P = 0.004) and educational level of parent or guardian (P = 0.005). Attitude toward oral health prevention was significantly associated with age group (P = 0.045) and academic level (P = 0.044). Oral health prevention practice was not significantly associated with any factor. Finally, students whose parent or guardian had non-university higher education were significantly 67% less likely (OR = 0.33; confidence interval [CI]: 0.15–0.73) to have poor knowledge of oral health prevention than those whose parent or guardian had university higher education (P = 0.007). Conclusion: Knowledge and attitudes of the students about oral health prevention were associated with age and academic level. In addition, the educational level of parent or guardian was associated with knowledge, such that those students whose parent or guardian had non-university higher education were 67% less likely to have poor knowledge of oral health prevention than those whose parent or guardian had university higher education. Finally, the practice of oral health prevention was not associated with any of the sociodemographic factors considered in this study.
目的:青少年在一生中经历一段发展发生重大变化的时期,除此之外,他们还会形成对其一般保健发挥重要作用的做法和态度,这将对他们今后的福祉和生活质量产生影响。因此,本研究的目的是确定秘鲁-瑞士教育机构青少年学生的口腔卫生预防知识、态度和实践与社会人口因素之间的关系。材料与方法:本研究采用分层随机抽样的方法,于2021年11月至12月对154名青少年学生进行观察性横断面研究。采用了秘鲁预防和社会牙科协会(APOPS)验证的问卷。统计分析采用Pearson卡方检验,并采用比值比(OR)建立logit模型,以年龄、性别、学历、家庭结构、父母或监护人教育程度、国籍等变量评价口腔健康预防知识、态度和行为。以P < 0.05为显著性水平。结果:44.81%的学生表示知识不足,26.62%的学生表示态度不好,1.95%的学生表示做法不正确。口腔健康预防知识与年龄(P = 0.002)、学历(P = 0.004)、父母或监护人文化程度(P = 0.005)有显著相关。口腔健康预防态度与年龄(P = 0.045)、学历(P = 0.044)有显著相关。口腔卫生预防实践与任何因素均无显著相关。最后,父母或监护人接受过非大学高等教育的学生的可能性显著降低67% (or = 0.33;可信区间[CI]: 0.15-0.73)与父母或监护人受过大学或高等教育的儿童相比,其口腔卫生预防知识较差(P = 0.007)。结论:大学生口腔健康预防知识和态度与年龄、学历有关。此外,父母或监护人的教育程度与知识相关,例如父母或监护人受过非大学高等教育的学生,其口腔卫生预防知识贫乏的可能性比父母或监护人受过大学高等教育的学生低67%。最后,口腔健康预防的实践与本研究中考虑的任何社会人口因素无关。
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引用次数: 2
Breastfeeding and bottle-feeding as risk factors for dental caries and malocclusions in children with deciduous dentition: A scoping review 母乳喂养和奶瓶喂养是乳牙列儿童龋齿和错牙合的危险因素:范围界定综述
IF 0.7 Q4 Dentistry Pub Date : 2022-09-01 DOI: 10.4103/jioh.jioh_88_22
Jazmin Amores-Esparza, Victoria Altamirano-Mora, Inés Villacís-Altamirano, C. Montesinos-Guevara
Aim: To identify the available evidence on the effects that breastfeeding and/or bottle-feeding may have on the presence of early childhood caries (ECC) and malocclusion in children with deciduous dentition. Materials and Methods: A systematic search was carried out in different databases, including PubMed, Cochrane Library, Lilacs, and Epistemonikos, up to January 6, 2022. Studies were independently selected by two reviewers according to title, abstract, and full-text analysis. Disagreements were solved by a third reviewer. Results: A total of 1343 studies were found from the initial search, of which 42 studies were included in this study. Results are controversial, 14 studies concluded that prolonged breastfeeding and bottle-feeding at night increase the risk of caries, 7 studies mentioned that breastfeeding could be a protective factor for dental caries development in children under 6 years, 20 studies concluded that children who were breastfed for less than 6 months have a higher risk of developing malocclusions compared with children who were breastfed for a longer time and children who were bottle-fed compared with children who were breastfed had a higher prevalence of malocclusions, mainly anterior open-bite. Four studies found no significant association between breastfeeding and/or bottle-feeding with the development of dental caries and malocclusion. Conclusion: Most included studies concluded that the presence of ECC may be associated with bottle-feeding and prolonged breastfeeding, but reasons still need further development. Regarding malocclusions, most studies concluded that prolonged breastfeeding could be a protective factor for its development, whereas a high frequency and duration of bottle consumption could lead to deformations in the maxillary bone, mainly anterior open-bite. However, results are still controversial.
目的:确定母乳喂养和/或奶瓶喂养可能对乳牙列儿童早期龋齿(ECC)和错牙合的影响的现有证据。材料和方法:系统检索不同的数据库,包括PubMed、Cochrane Library、Lilacs和Epistemonikos,截止到2022年1月6日。研究由两位审稿人根据标题、摘要和全文分析独立选择。分歧由第三位审稿人解决。结果:初始检索共发现1343项研究,其中42项研究被纳入本研究。结果是有争议的,14项研究得出结论,长时间母乳喂养和晚上用奶瓶喂养会增加患龋齿的风险,7项研究提到母乳喂养可能是6岁以下儿童龋齿发展的保护因素,20项研究得出结论,母乳喂养少于6个月的儿童与母乳喂养较长时间的儿童相比,发生错牙合的风险更高,奶瓶喂养的儿童与母乳喂养的儿童相比,错牙合的患病率更高,主要是前牙开咬。四项研究发现,母乳喂养和/或奶瓶喂养与龋齿和错牙合的发展没有显著关联。结论:大多数纳入的研究认为ECC的存在可能与奶瓶喂养和母乳喂养时间延长有关,但原因仍有待进一步研究。对于牙合畸形,大多数研究认为,长时间的母乳喂养可能是其发育的保护因素,而高频率和长时间的奶瓶消费可能导致上颌骨变形,主要是前开咬。然而,结果仍然存在争议。
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引用次数: 0
Comparison of tensile and shear bond strengths of layering porcelain with VITA Suprinity after different surface treatment methods: An in vitro study 不同表面处理方法对VITA-Supinity层状陶瓷拉伸和剪切结合强度的比较:体外研究
IF 0.7 Q4 Dentistry Pub Date : 2022-09-01 DOI: 10.4103/jioh.jioh_75_22
A. Shishehian, Farnoush Fotovat, Banafsheh Poormoradi, S. Khazaei, M. Farhadian, Hirbod Gilandoust
Background: For all-ceramic restorations to last a long time, the ceramic veneering and substructure need to have a strong sufficient bond. This research compared how two different surface treatments affected the tensile and shear bond strengths of zirconium-reinforced lithium silicate and porcelain (Suprinity). Materials and Methods: A total of 120 samples were divided into three groups at random: control(no surface treatment),aluminium oxide sandblasting, Erbium, Chromium-doped Yttrium, Scandium, Gallium, and Garnet (Er, Cr: YSGG) laser irradiation, and 60 samples to evaluate tensile bond strength and 60 samples to evaluate shear bond strength. By using one-way ANOVA and the post-hoc Tukey’s test, the tensile and shear bond strength between Suprinity and porcelain (VITA VM 11) was analyzed in all groups. Results: The maximum and minimum tensile bond strength was seen in sandblasting group (7.86 ± 2.22 Mpa) and control group (4.88 ± 1.58 Mpa), respectively (P < 0.001). The amount of shear bond strength in the laser group, sandblast group, and control group was (5.16 ± 1.66 Mpa),(5.00 ± 1.34 Mpa),(4.39 ± 1.54 Mpa) respectively (P = 0.252). In tensile and shear bond strength tests, most failures were cohesive in VITA VM 11 layering porcelain (65.0% vs. 66.7%) followed by mixed failures (33.3% vs. 20%). Conclusion: Suprinity and layering porcelain produced higher tensile bonds as a result of Al2O3 sandblasting and Er, Cr: YSGG laser irradiation. While no pure adhesive failure was seen, cohesive failure was predominant.
背景:为了使所有陶瓷修复体都能持续很长时间,陶瓷贴面和底层结构需要有足够牢固的结合。这项研究比较了两种不同的表面处理如何影响锆增强硅酸锂和陶瓷(Suprinity)的拉伸和剪切结合强度。材料和方法:将120个样品随机分为三组:对照组(无表面处理)、氧化铝喷砂、掺铒、铬钇、钪、镓和石榴石(Er,Cr:YSGG)激光照射,60个样品评估拉伸结合强度,60个样本评估剪切结合强度。通过单因素方差分析和事后Tukey检验,分析了各组Suprinity和瓷器(VITA VM 11)之间的拉伸和剪切结合强度。结果:喷砂组的抗拉结合强度最高,最低(7.86 ± 2.22Mpa)和对照组(4.88 ± 1.58Mpa)(P<0.001)。激光组、喷砂组和对照组的剪切结合强度为(5.16 ± 1.66兆帕),(5.00 ± 1.34兆帕),(4.39 ± 1.54Mpa)(P=0.252)。在拉伸和剪切结合强度测试中,VITA VM 11分层瓷的大多数失效是内聚失效(65.0%对66.7%),其次是混合失效(33.3%对20%)。结论:Al2O3喷砂和Er,Cr:YSGG激光照射后,表层和分层瓷具有较高的拉伸结合强度。虽然没有发现纯粘合失效,但内聚失效占主导地位。
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Journal of International Oral Health
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