Mansoura Journal of Dentistry最新文献_第4页

Effect of Food Simulating Solvents on Surface Roughness and Microhardness of Bulk Fill Resin Composites. 食品模拟溶剂对散装填充树脂复合材料表面粗糙度和显微硬度的影响。

Mansoura Journal of Dentistry Pub Date : 2022-12-01 DOI: 10.21608/mjd.2022.151667.1065

H. Hal, Ashraf I Ali, Noha El-wassefy, Marmar Montaser

引用次数: 1

Immunohistochemical Assessment of Angiogenesis and Cell Proliferation in Aggressive versus Non-aggressive Central Giant Cell Granuloma. 侵袭性与非侵袭性中央巨细胞肉芽肿血管生成和细胞增殖的免疫组化评价。

Mansoura Journal of Dentistry Pub Date : 2022-12-01 DOI: 10.21608/mjd.2022.150755.1062

Mena Mesiha

引用次数: 0

Soft Metal versus Laser Melting Metal Framework Used for Mandibular All on Four Implant Supported Fixed Complete Denture 软金属与激光熔化金属支架在下颌四根种植固定全口义齿中的应用

Mansoura Journal of Dentistry Pub Date : 2022-12-01 DOI: 10.21608/mjd.2022.156078.1074

Noha Rashed, Noha El Shaheed, W. S. Said Ahmed, Salah A. Hegazy

引用次数: 0

Micro-tensile Bond Strength of Three Different Dual Cure Resin Composites Bonded to Dentin 三种不同双固化树脂复合材料与牙本质的微拉伸结合强度

Mansoura Journal of Dentistry Pub Date : 2022-12-01 DOI: 10.21608/mjd.2022.152216.1066

Atya Alzarouq, R. Mehesen, Ashraf I Ali

引用次数: 0

Evaluation of Microtensile Bond Strength, Microleakage Pattern and Micromorphological Analysis of New Functional Monomer-Based Universal Adhesive Tooth Interface 新型功能单体万能粘接齿界面微拉伸强度评价、微泄漏模式及微形态分析

Mansoura Journal of Dentistry Pub Date : 2022-12-01 DOI: 10.21608/mjd.2022.150206.1069

Hussain Aljanaby, S. Mahmoud, hamdy Hammama

引用次数: 0

Comparative Study Of Protrusive Record Accuracy With And Without George Gauge For Dentulous Cases 有、无乔治测量仪在义齿病例中突出记录准确性的比较研究

Mansoura Journal of Dentistry Pub Date : 2022-11-17 DOI: 10.21608/mjd.2022.270256

A. Mostafa, Noha H El-Shaheed

{"title":"Comparative Study Of Protrusive Record Accuracy With And Without George Gauge For Dentulous Cases","authors":"A. Mostafa, Noha H El-Shaheed","doi":"10.21608/mjd.2022.270256","DOIUrl":"https://doi.org/10.21608/mjd.2022.270256","url":null,"abstract":": Objective: This study aimed to evaluate the accuracy of the George gauge in protrusive records. Materials and Methods: This clinical trial includes a total of 12 dentulous subjects aged 20 to 40 years with no signs of muscular disease or temporomandibular joint disorders were chosen. For each patient, two different protrusive records were created, one with and one without the George gauge, using polyvinyl siloxane materials. The accuracy of these two protrusive records was evaluated by measuring the amount of midline shift in both records with a digital calliper. Then these Protrusive records were used to programme the articulator and determine the specific horizontal condylar angle (HCA) value, as well as panoramic radiographs to compare clinical and radiographic values. Paired sample t-test, and one-way ANOVA test was used for parametric data analysis. SPSS Ver.23 was used for statistical analysis. Results The findings revealed a statistically significant difference in the accuracy of the protrusive record when done conventionally versus with the aid of George Gauge, with George Gauge providing a more accurate record. The angle obtained via panoramic radiographs was steeper than the angle obtained clinically. Conclusions: The George gauge aids in the accurate and simple registration of protrusive records. The condylar guidance angles determined by radiographs were greater than those determined by clinical methods using protrusive records.","PeriodicalId":308616,"journal":{"name":"Mansoura Journal of Dentistry","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114212005","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 expression of BMI-1 in ameloblastoma and dentigerous cyst BMI-1在成釉细胞瘤和牙性囊肿中的表达

Mansoura Journal of Dentistry Pub Date : 2022-09-01 DOI: 10.21608/mjd.2022.259780

Omnia S. Mohamed, Azza A. Elsissi, O. Elkashty

引用次数: 0

Comparison of Cyclic Fatigue Resistance of Three Ni-Ti Rotary Files 三种Ni-Ti旋转锉的抗循环疲劳性能比较

Mansoura Journal of Dentistry Pub Date : 2022-09-01 DOI: 10.21608/mjd.2022.259772

Mohamed A. El-Dreny, M. Ibrahim, A. Badr

{"title":"Comparison of Cyclic Fatigue Resistance of Three Ni-Ti Rotary Files","authors":"Mohamed A. El-Dreny, M. Ibrahim, A. Badr","doi":"10.21608/mjd.2022.259772","DOIUrl":"https://doi.org/10.21608/mjd.2022.259772","url":null,"abstract":": Objective: To compare the cyclic fatigue resistance of three Ni-Ti rotary files. Materials and Methods: A number of forty-five different nickel titanium rotary instruments (n = 15) were used in this study. All files were used according to their manufacturers' instructions. A specially designed, custom-made cyclic fatigue testing device was used in this study. The device had a simulated curved root canal within a stainless-steel block with a 45° angle of curvature and 5 mm radius of curvature. The time to fracture (TtF) in seconds was recorded visually using stopwatch. To characterize fracture mode, fractured fragments from each group were examined using a scanning electron microscope (SEM). The collected data were analyzed using one-way analysis of variance (one-way ANOVA) and post-hoc Tukey multiple comparison test with a statistical significance at p < 0.05 to compare the values of time to fracture (TtF) between the tested groups. Results: When comparing the time to fracture among the tested instruments, One-way ANOVA test revealed that there was a statistically significant difference among the three NiTi instruments (p < 0.05). HyFlex EDM had the highest resistance to cyclic fatigue resistance. Scanning electron microscopy analysis showed that the fracture type of all instruments was ductile fracture. Conclusions: According to the results of this study, HyFlex EDM had the highest cyclic fatigue resistance among the Ni-Ti instruments.","PeriodicalId":308616,"journal":{"name":"Mansoura Journal of Dentistry","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115975856","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 between the Effect of Bisphosphonates and Concentrated Growth Factors on Bone Healing Experimental Study 双膦酸盐与浓缩生长因子对骨愈合影响的实验研究

Mansoura Journal of Dentistry Pub Date : 2022-09-01 DOI: 10.21608/mjd.2022.259763

M. A. Naji, Rana M. Nagah, F. Abdel-Rahman, H. Marzook

{"title":"Comparison between the Effect of Bisphosphonates and Concentrated Growth Factors on Bone Healing Experimental Study","authors":"M. A. Naji, Rana M. Nagah, F. Abdel-Rahman, H. Marzook","doi":"10.21608/mjd.2022.259763","DOIUrl":"https://doi.org/10.21608/mjd.2022.259763","url":null,"abstract":": Objective: Objectives: The aim of study was to compare the histological effect of Bisphosphonates (BPH) and Concentrated growth factors (CGFs) in bone defect healing. Materials and Methods: This experimental trial was conducted on 8 adults healthy New Zealand male rabbits weighing (2–3kgs). The rabbits are grouped as following: 4 rabbits in the CGF group and 4 rabbits in the BPH group and then sub-grouped according to sacrification time into 2 and 4 weeks in each rabbit. Two circular bone defects were created in the tibia (so every group have 8 defect). After that, each rabbit was treated by either BPH or CGF. Four rabbits were sacrificed at each of the experimental periods 2 and 4 weeks postoperatively. The right tibia from each animal was immediately removed, fixed with 10% neutral buffered formalin, and dematerialized with Ethylene Diamine Tetra Acetic acid (EDTA). After the complete demineralization, the tibias were processed to H&E and trichrome staining. After that, histological compare the haling between the two groups. Results: Histological evaluation showed more mature bone formation in the CGFs groups compared to BPH groups. In addition, CGFs groups showed favorable regeneration of bone. Histologically, the bone formation in CGFs groups was higher than in the BPH groups. Conclusions: The current study found that proper application of Concentrated growth factors CGF as an osteoconductive material gave better enhancement in osteogenesis and acceleration in bone healing than Bisphosphonates BPH.","PeriodicalId":308616,"journal":{"name":"Mansoura Journal of Dentistry","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124741940","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

Antimicrobial Efficacy of Different Root Canal Irrigants in Primary Teeth: Clinical Study 不同根管冲洗剂对乳牙抗菌效果的临床研究

Mansoura Journal of Dentistry Pub Date : 2022-09-01 DOI: 10.21608/mjd.2022.259776

Nada H. Elmenbawy, A. Wahba, D. Masallat, Salwa M Awad

引用次数: 0