Dental Science Updates最新文献_第4页

Relationship between Linear Measurement of Sella-Turcica and Palatally Impacted Canines : Cone Beam Computed Tomographic study 蝶鞍线性测量与腭阻生犬的关系:锥束计算机断层研究

Dental Science Updates Pub Date : 2023-03-01 DOI: 10.21608/dsu.2023.141922.1126

A. Attia, Mohamed Nadim, A. ElKadi

引用次数: 0

Effect Of Two Calcium-Silicate and One Resin Sealers On The Fracture Resistance Of Root Dentin Using Different Treatments In Dog’s Teeth (An In Vivo Study) 两种硅酸钙和一种树脂封口剂对犬牙根质抗折性的影响(体内研究)

Dental Science Updates Pub Date : 2023-03-01 DOI: 10.21608/dsu.2023.122351.1111

S. Ismail, Dalia Fayad, D. Mohamed, Mohamed Eldaharawy

引用次数: 0

Correlation between Cranial Base Angle and Various Types of Sagittal Skeletal Discrepancies 颅底角与不同类型矢状面骨差异的关系

Dental Science Updates Pub Date : 2023-03-01 DOI: 10.21608/dsu.2023.154810.1137

A. Elmasry, Mohamed Adel Nadim, Ahmed Abd El Fattah Ramadan

引用次数: 0

In-vitro evaluation of shear bond strength of different veneering materials to CAD/CAM zirconia ceramics 不同贴面材料与CAD/CAM氧化锆陶瓷剪切结合强度的体外评价

Dental Science Updates Pub Date : 2023-03-01 DOI: 10.21608/dsu.2023.142221.1128

A. ElSayed, Tarek Abdelhamid, Mosaad Elgabarouny, M. Atta

引用次数: 0

Three-Dimensional Evaluation of the Airway Space after Distalization Using Carrière Motion Appliance 使用carriires运动器对远端后气道空间的三维评价

Dental Science Updates Pub Date : 2023-03-01 DOI: 10.21608/dsu.2023.141838.1125

Heba Allah ELGhawy, A. ElKadi, Walaa El gemaey

引用次数: 0

Maxillary Transverse Dimensions in Subjects with Impacted Canine Compared with Normal Subjects using Cone Beam Computed Tomography 锥形束计算机断层扫描对患阻生犬齿者与正常人上颌横向尺寸的比较

Dental Science Updates Pub Date : 2023-03-01 DOI: 10.21608/dsu.2023.148976.1132

Shady Elhamshary, W. Refaat, A. Ramadan

{"title":"Maxillary Transverse Dimensions in Subjects with Impacted Canine Compared with Normal Subjects using Cone Beam Computed Tomography","authors":"Shady Elhamshary, W. Refaat, A. Ramadan","doi":"10.21608/dsu.2023.148976.1132","DOIUrl":"https://doi.org/10.21608/dsu.2023.148976.1132","url":null,"abstract":"Introduction: One of the many causes of maxillary canine impaction is the mechanical obstruction by a small maxillary arch. By introducing Cone Beam Computed Tomography (CBCT) to the orthodontic field, studying such a relation became possible and accurate. Aim: The aim of this study was to compare the maxillary transverse dimensions between subjects with impacted maxillary canines and normal subjects using Cone Beam Computed Tomography. Methods: Cone-beam computed tomographic images of 60 adults were acquired. They were grouped into three groups of 20 each: buccal canine impaction, Palatal canine impaction and a control group. The width of the maxilla was measured skeletally, dentally and alveolar in each group using Dolphin software program. Results: the skeletal width of the maxilla was similar among study groups and control ones. It was found that there was a statistically significant difference between canine impaction groups and control group regarding the premolar width and the premolar alveolar width. As for the molar width and the molar alveolar width, there was no statistically significant difference between them. Conclusion: Premolar dental and alveolar widths of the maxillary arch were significantly smaller in palatal canine impaction subjects than in subjects with buccal impactions or normal subjects. Skeletal, molar dental and molar alveolar widths of maxilla had non-significant difference between canine impaction and normal subjects.","PeriodicalId":11270,"journal":{"name":"Dental Science Updates","volume":"167 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83887617","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: 1

Effect of Two Retreatment Systems on the Bond Strength of TotalFill Bioceramic sealer: An in vitro study 两种再处理系统对全填充生物陶瓷封口剂粘结强度的影响:体外研究

Dental Science Updates Pub Date : 2023-03-01 DOI: 10.21608/dsu.2023.126363.1119

D. Samuel, Dalia Fayad, N. Abdelsalam

{"title":"Effect of Two Retreatment Systems on the Bond Strength of TotalFill Bioceramic sealer: An in vitro study","authors":"D. Samuel, Dalia Fayad, N. Abdelsalam","doi":"10.21608/dsu.2023.126363.1119","DOIUrl":"https://doi.org/10.21608/dsu.2023.126363.1119","url":null,"abstract":"Introduction : Removal of root canal filling from the root canals is important to allow effective irrigation flow inside the root canals, and adaptation of new root canal filling. Aim: to evaluate and compare the efficacy of two rotary retreatment systems (D-Race retreatment kit, Neolix kit) on removal of gutta-percha and bond strength of obturation using Totallfill BC sealer. Materials and methods: Sixty single rooted teeth were decoronated and shaped using Protaper universal system to size F3, then obturated using cold lateral condensation. Roots were divided into two groups according to the type of retreatment kit used. After retreatment, half of the samples were examined under Scanning Electron Microscope (SEM) and the remaining half were reobturated using Totallfill Bioceramic sealer and tested by pushout bond strength test. Data was statistically analyzed by one-and two-way of variance (ANOVA) followed by Tukey’s HSD multiple comparison tests to compare between sub-groups. Results : Findings showed that D-race system is more effective in removing root canal filling material compared to Neolix system. The results also showed that the adaptation of bioceramic sealer is affected by the amount of remaining root canal filling material after retreatment. Conclusions : This study suggested that D-race system is more effective in removing root canal filling material compared to Neolix system. The adaptation of bioceramic sealer is affected by the amount of remaining root canal filling after retreatment.","PeriodicalId":11270,"journal":{"name":"Dental Science Updates","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90950120","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

Effect of Two Remineralizing Agents on Shear Bond Strength of Two Orthodontic Composites: An In-vitro Study 两种再矿化剂对两种正畸复合材料剪切结合强度影响的体外研究

Dental Science Updates Pub Date : 2023-03-01 DOI: 10.21608/dsu.2023.147898.1131

S. Ayad, Hanady Samih, Ahmed Ramadan

引用次数: 0

Effect of Diode laser on debonding of orthodontic ceramic bracket (In Vitro Study) 二极管激光对正畸陶瓷托槽脱粘的影响(体外研究)

Dental Science Updates Pub Date : 2023-03-01 DOI: 10.21608/dsu.2023.131033.1120

Aya Fathi, Walaa El gemaey, A. Ramadan

引用次数: 0

Microbiological Assessment of Diode Laser in comparison to Chemical Disinfection with Selective Caries Removal 二极管激光消毒与化学消毒选择性除龋的微生物学评价

Dental Science Updates Pub Date : 2023-03-01 DOI: 10.21608/dsu.2023.152258.1135

M. AbdelHamid, A. Fawzy, O. Fahmy

引用次数: 0