Al-Azhar Assiut Dental Journal最新文献_第4页

Effect of Different Nano-Fillers Addition on The Mechanical Properties of Heat-Polymerized Acrylic Resin 不同纳米填料对热聚合丙烯酸树脂力学性能的影响

Al-Azhar Assiut Dental Journal Pub Date : 2022-10-22 DOI: 10.21608/aadj.2022.267266

Mohamed Aboshama, Aly Sayed, Ahmed Elhagali

{"title":"Effect of Different Nano-Fillers Addition on The Mechanical Properties of Heat-Polymerized Acrylic Resin","authors":"Mohamed Aboshama, Aly Sayed, Ahmed Elhagali","doi":"10.21608/aadj.2022.267266","DOIUrl":"https://doi.org/10.21608/aadj.2022.267266","url":null,"abstract":"Aim: To evaluate flexural strength (FS) and micro-hardness of poly(methylmethacrylate) (PMMA) denture base material modified with Zirconium oxide (ZrO2), titanium oxide (TiO2) and zinc oxide (ZnO) nanoparticles powder with different concentration (1.5, 3 and 5% ) Subjects and Methods: Test specimens of PMMA of dimensions (65 ×10 × 2.5 mm) were made from heat-cured acrylic resin served as control group Another nine group were made of PMMA containing 1.5, 3, and 5% (w/w) (ZrO2), (TiO2) and (ZnO) nanoparticles. Two types of mechanical tests were performed on the samples: flexural strength and hardness. Results: Statistical analysis results revealed that non-significant increase in flexural strength of heat cured reinforced with ZrO2 Nps and ZnO Nps for all concentrations. While adding 1.5% and 5% of TiO2 Nps showed significant increase in flexural strength but 3% showed significant decrease values. Results revealed that non-significant decrease in hardness of heat cured reinforced with ZrO2 Nps ,TiO2 Nps, and ZnO Nps for all concentrations except 3% of heat cured reinforced with TiO2 Nps which showed non-significant increase in hardness. Conclusions: It was discovered that adding of 1.5and 5% Tio2 Nps to the used denture base materials would improve the flexural strength of the denture base materials. Also, adding 1.5, 3 and 5 % ZrO2, Tio2, and ZnO Nps reduces the microhardness. of its merits this material has many applications including biomedical and dental prostheses. The main disadvantages of PMMA are its low strength characteristics, which include flexural and impact strengths. (1) Nanotechnology has lately been utilized in the prosthetics scope to material boost objectives (2,3) , which has been confirmed in the research of nanomaterials for enhancing the mechanical characteristics","PeriodicalId":136230,"journal":{"name":"Al-Azhar Assiut Dental Journal","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130352905","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

Comparative Histological Study of Reparative Dentin Formation of Calcium Hydroxide and Zeolite in Pulpotomized Teeth (Histological Study) 氢氧化钙与沸石修复牙本质形成的组织学比较研究(组织学研究)

Al-Azhar Assiut Dental Journal Pub Date : 2022-10-07 DOI: 10.21608/aadj.2022.267275

Hany G. Gobran, Abdel-Azzem A. Ismael, Ibrahim Farouk, A. Abdelwahab, Hany Mahmoud, H. Dameer

{"title":"Comparative Histological Study of Reparative Dentin Formation of Calcium Hydroxide and Zeolite in Pulpotomized Teeth (Histological Study)","authors":"Hany G. Gobran, Abdel-Azzem A. Ismael, Ibrahim Farouk, A. Abdelwahab, Hany Mahmoud, H. Dameer","doi":"10.21608/aadj.2022.267275","DOIUrl":"https://doi.org/10.21608/aadj.2022.267275","url":null,"abstract":"Aim: Zeolites induce the proliferation and differentiation of cells of the osteoblast lineage. Application of zeolite in pulpotomized young permenat teeth had not been investigated. The objective of this study was to investigate histologicaly the capability of zeolite to induce dentin bridge formation and compare it with calcium hydroxide. Subjects and methods: Four dogs aged 12-24 month were included in the present study. In each dog, pulpotomy procedures were carried out in four premolars teeth in each quadrant and restored with one of the experimental materials in a way that teeth in each quadrant restored with one material differ from that of the contralateral quadrant. Specimens were harvested on the sixth week after operation and twelfth week after operative procedures, prepared and examined histologically by H&E (haematoxylin and eosin) stain, there were wide histological differences between the groups of this study along the different intervals of the study. Results: The result of the present study revealed inflammatory response of pulp tissue to both tested materials with various de-grees that were subsided by time only in calcium hydroxide group. Calcium hydroxide has a powerful agent for regenerative effect on pulp tissue with dentin bridge formation. On the contrary; pulp degeneration and necrosis were the end results of pulpotomy with zeolite material. Conclusion: Calcium hydroxide could induce dentin bridge formation while zeolite failed. .","PeriodicalId":136230,"journal":{"name":"Al-Azhar Assiut Dental Journal","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129161565","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

Comparing Masticatory Efficiency of Implant Supported Overdenture With Two Different Denture Base Materials 两种不同基托材料种植覆盖义齿咀嚼效率的比较

Al-Azhar Assiut Dental Journal Pub Date : 2022-10-07 DOI: 10.21608/aadj.2022.267267

M. Mansour, M. Quassem, Y. Baraka, O. Helaly

{"title":"Comparing Masticatory Efficiency of Implant Supported Overdenture With Two Different Denture Base Materials","authors":"M. Mansour, M. Quassem, Y. Baraka, O. Helaly","doi":"10.21608/aadj.2022.267267","DOIUrl":"https://doi.org/10.21608/aadj.2022.267267","url":null,"abstract":"Aim: This clinical study was conducted to evaluate the effect of using different denture base material on masticatory efficiency in implant supported complete mandibular overdenture. Subjects and methods : Twelve completely edentulous patients were selected for this study according to inclusion and exclusion criteria that affect implant success or masticatory system. History taking, clinical, and radiographic evaluation were done for each patient. Preoperative cone beam computerized tomography (CBCT) was done for each to determine bone height and width. Each patient received two implants in the inter-foraminal area of mandible, three months later lower denture was converted into mandibular overdenture. Patients were grouped in two groups Group I: patients were received a complete mandibular overdenture constructed of conventional heat cured acrylic resin denture base. Group II: patients were received a complete mandibular overdenture constructed of flexible denture base material (polyamide). Evaluation of masticatory efficiency were done for each group by calculating chewing numbers and times. All evaluations were done at the time of implant placement, three months, six months, twelve, eighteen and twenty-four months of implant placement. One-way ANOVA with post hoc turkey test was used for multiple time comparison. Results: The chewing number and times was non-significant between the two groups. Conclusion: The denture base has no effect on masticatory efficiency of mandibular implant supported overdentures.","PeriodicalId":136230,"journal":{"name":"Al-Azhar Assiut Dental Journal","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131108355","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

Association of DEXA with EDX in Evaluation of Inorganic Bone Components After Application of Nano bone For Repair of Bone Defect DEXA与EDX在纳米骨修复后无机骨成分评价中的关联研究

Al-Azhar Assiut Dental Journal Pub Date : 2022-10-07 DOI: 10.21608/aadj.2022.267279

Nehad J. Ahmad, Naglaa Elkilania

{"title":"Association of DEXA with EDX in Evaluation of Inorganic Bone Components After Application of Nano bone For Repair of Bone Defect","authors":"Nehad J. Ahmad, Naglaa Elkilania","doi":"10.21608/aadj.2022.267279","DOIUrl":"https://doi.org/10.21608/aadj.2022.267279","url":null,"abstract":"Aim: The aim of this study is to correlate DEXA and EDX in assessment the varia-tions in chemical composition in terms of the main elements comprising the bone mineral {calcium (Ca), and phosphorus (P)} after application of Nano bone for Repair of bone defect. Subjects and Methods: A bone drill defect was created in the right tibia (two holes in each tibia) of 48 rabbits; upper hole was left empty while the lower hole was packed with NanoBone. 24 animals were sacrificed 2 weeks after surgery; the remaining animals were sacrificed after 4 weeks. Half of the bone specimens prepared for the routine laboratory processing, histological and histomorphometric, while The remaining specimens were scanned by Dual-energy X-ray absorptiometry (DEXA) for bone mineral density measurement and then used for bone mineral composition determination by Energy Dispersive X-ray Analyses (EDX). The measurements of DEXA and EDX have been compared after that, data were submitted to ANOVA and Tukey’s test. Results: DEXA showed a strong positive correlation with EDX and histological analysis. Conclusion: Energy-dispersive X-ray microanalysis (EDX) is a useful quan-titative tool for the analysis of Ca and P in bone in a non-invasive way. non-collag-enous proteins and proteoglycans account for a small total weight of organic component, though they still have an important role in osteo-blast differentiation and tissue mineralization (2) . The mineralized phase of the bone is composed of hydroxyl- apatite [Ca,o (PO4)6(OH):] in","PeriodicalId":136230,"journal":{"name":"Al-Azhar Assiut Dental Journal","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123300379","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

Evaluation of Different Histologic Reactions in Dentin-Pulp Organs after Stimulation with Laser, MTA, and TheraCal as Pulp Capping Therapies 激光、MTA和TheraCal作为盖髓治疗刺激牙本质-牙髓器官后不同组织学反应的评价

Al-Azhar Assiut Dental Journal Pub Date : 2022-10-07 DOI: 10.21608/aadj.2022.267270

E. Elwardany, H. Sherif, M. Ali, Hany Mahmoud, A. Abdallah

{"title":"Evaluation of Different Histologic Reactions in Dentin-Pulp Organs after Stimulation with Laser, MTA, and TheraCal as Pulp Capping Therapies","authors":"E. Elwardany, H. Sherif, M. Ali, Hany Mahmoud, A. Abdallah","doi":"10.21608/aadj.2022.267270","DOIUrl":"https://doi.org/10.21608/aadj.2022.267270","url":null,"abstract":"Aims: to assess the different histologic reactions in dentin-pulp organs in the pulp of mongrel dogs after stimulation with Low-Level Laser (LLL), mineral trioxide aggregate (MTA), and TheraCal light-cured (LC) as capping therapies and compare it with the conventional calcium hydroxide (Ca(OH)) cement material . Subjects and Methods: Eight male mongrel dogs weighing 10-15 kg and 12-18 months old were chosen for this study. The pulp exposure was done via the preparation of a class V cavity on the buccal surface of the premolar teeth. In each doge, the premolar teeth were involved and assigned to four different groups based on the treatment procedure (group 1: LLL; group 2: MTA; group 3: TheraCal LC; and group 4; Ca(OH). The histological reactions at the site of exposure and the mid-region (including odontogenic zones, pulp cores, and supposed tertiary dentin formation) were recorded at 3 different follow-up periods (7, 14, and 42 days). Results: The histological finding showed different histological reactions in the dentin-pulp organs at the site of exposure and the mid-region in response to the different capping materials at different follow-up periods with a higher positive effect with Laser, and MTA followed by TheraCal LC, and Ca(OH) at different follow-up periods. Conclusion: The use of Laser, and MTA as pulp-capping therapies has a considerable positive histological reaction on the dentin-Pulp organs when compared with TheraCal and Ca(OH). of proper healing of exposed dental pulp comprise restructuring of the injured pulp tissues, differentiation of newly odon-toblastic-like cells (ODLCs) from the sub-odontoblastic cells, and con-sequently healing of the dentin tissues via formation of what is called “reparative dentin”. (2,3)","PeriodicalId":136230,"journal":{"name":"Al-Azhar Assiut Dental Journal","volume":"96 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115091228","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

Comparing Post-Operative Pain of Nanohybrid and Bulk Fill Composite Resin Restorations (In-vivo Study) 纳米复合材料与大块填充复合树脂修复体术后疼痛比较(体内研究)

Al-Azhar Assiut Dental Journal Pub Date : 2022-10-01 DOI: 10.21608/aadj.2022.267285

A. A. Abd El-Ghany, Walaa Alsamoully, Galal Eldeen Mosaad, M. Hafez

{"title":"Comparing Post-Operative Pain of Nanohybrid and Bulk Fill Composite Resin Restorations (In-vivo Study)","authors":"A. A. Abd El-Ghany, Walaa Alsamoully, Galal Eldeen Mosaad, M. Hafez","doi":"10.21608/aadj.2022.267285","DOIUrl":"https://doi.org/10.21608/aadj.2022.267285","url":null,"abstract":"Aim: Post-operative pain is one of the main disadvantages of composite resin restorations, so the study will evaluate it after one day one week, and one month postoperatively. Subjects and methods: A total No. of 60 patients were selected randomly for the study, class II cavity preparation was performed with two different placement techniques; Bulk fill Tetric Evo-ceram and Nanohybrid composite Z250 XT. Two different adhesive systems were used Self Etch Clearfill SE and Adper Single bond. Post-operative pain is evaluated at one day, one week, and one month post-operative. One-way ANOVA analysis was used for statistics of the results. Results : From the results of the study there was no statistically significant difference between the tested groups, but it was noticed that all the groups gave higher results after one day postoperative, and all of them are decreasing after one week and more decreasing after one month post-operative. It was recorded that bulk fill has decreased postoperative pain and also self-etch groups have the lowest values than total-etch groups in both types of composite resin restorations. Conclusion: Post-operative pain and hypersensitivity in both bulk fill and incremental placement techniques is decreasing with time, and the adhesive system has no significant role in decreasing post-operative pain and hypersensitivity. may lead to Post-operative sensitivity and it could lead to early failure of composite resin restorations.","PeriodicalId":136230,"journal":{"name":"Al-Azhar Assiut Dental Journal","volume":"128 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133820750","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

Evaluation of The Effect of Platelet Rich Fibrin (PRF) Combined With Collagen Membrane in Management of Gingival Recession 富血小板纤维蛋白联合胶原膜治疗牙龈萎缩的疗效评价

Al-Azhar Assiut Dental Journal Pub Date : 2022-10-01 DOI: 10.21608/aadj.2022.267295

Hossam Ibrahim, Mohamed Al ashmawy, Salem Waly, K. Hassan

{"title":"Evaluation of The Effect of Platelet Rich Fibrin (PRF) Combined With Collagen Membrane in Management of Gingival Recession","authors":"Hossam Ibrahim, Mohamed Al ashmawy, Salem Waly, K. Hassan","doi":"10.21608/aadj.2022.267295","DOIUrl":"https://doi.org/10.21608/aadj.2022.267295","url":null,"abstract":"Aim: The purpose of this study was to evaluate the efficacy of the (PRF) combined with collagen membrane in the management of gingival recession compared to the use of (PRF) alone. Subjects and methods: 10 sites including at least one tooth with Miller’s class II or class III buccal/labial gingival recession defect after phase I therapy were divided randomly into 2 groups, Group (I) was treated with open flap surgery while using (PRF) and Group (II) was treated with open flap surgery while using (PRF) combined with collagen membrane. Clinical parameters were recorded at baseline, 3and 6 months postoperatively. Results: both treatment groups showed no significant root coverage, Probing sulcus depth (PSD) reduction, Clinical attachment level (CAL) gain 6-months after surgery when compared with baseline between two groups. However, there was a significant increase of Height of keratinized gingiva (HKG) between (Group I) and (Group II) at 3-months and 6-months. Conclusion: Both the treatment modalities proved to be effective techniques in treatment of root coverage and Using of PRF + Collagen membrane showed superior effect compared to PRF alone, suggest that PRF + Collagen membrane can provide additional benefits not in the treatment of gingival recession but in increasing of the width of attached gingiva for complete root coverage. When dealing with class defects, root coverage is unlikely to be achieved (2) .","PeriodicalId":136230,"journal":{"name":"Al-Azhar Assiut Dental Journal","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114334618","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

Up Awareness of undergraduate dental students in Upper Egypt faculties about COVID 19 viral infection 提高上埃及大学牙科专业本科生对COVID - 19病毒感染的认识

Al-Azhar Assiut Dental Journal Pub Date : 2022-10-01 DOI: 10.21608/aadj.2022.267328

Z. Shatat, Mohammed Attia, Ahmed Abdel Emam, M. Youssef

{"title":"Up Awareness of undergraduate dental students in Upper Egypt faculties about COVID 19 viral infection","authors":"Z. Shatat, Mohammed Attia, Ahmed Abdel Emam, M. Youssef","doi":"10.21608/aadj.2022.267328","DOIUrl":"https://doi.org/10.21608/aadj.2022.267328","url":null,"abstract":"Aim: Coronavirus disease (COVID-19) was first to appear in Wuhan, China, in 2019. Being highly contagious, it started to spread rapidly throughout the entire world causing fear and anxiety among all nations with a very high mortality rate. Dentists are considered at an extremely substantial risk to be infected among all health care workers because they are working in close contact with their patients and also because of being regularly exposed to the aerosols, droplets and saliva splashing out of the patients’ mouth. Subjects and Methods : This study was based on a questionnaire to assess the knowledge of the graduating dental students about the signs and symptoms of (COVID-19) infection and also to evaluate their awareness about the precautions and infection control measures required during the dental treatment to keep them safe and control the spread of the disease. A well-constructed and validated questionnaire was formed and its link was sent to dental students in all year grades at different universities in Upper Egypt. The data were collected, tabulated, and statistically analyzed by SPSS (Statistical Package for Social Sciences). Results: Result showed significant valued regarding that the dental students have a good understanding of COVID-19 and the precautions. Conclusion: As a result, it was concluded that the dental students have a good understanding of COVID-19 and the precautions that must be taken to provide adequate dental treatment for patients during the pandemic.","PeriodicalId":136230,"journal":{"name":"Al-Azhar Assiut Dental Journal","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127151096","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

Platelet-Rich Fibrin Combined with Perforated Versus Non-Perforated Collagen Membrane in Treatment of Class II Gingival Recession (A Comparative Clinical Study) 富血小板纤维蛋白联合穿孔与非穿孔胶原膜治疗II类牙龈萎缩(一项临床比较研究)

Al-Azhar Assiut Dental Journal Pub Date : 2022-10-01 DOI: 10.21608/aadj.2022.267323

Mahmoud Abd-Elsamee, M. Edrees, Ibraheem Mowafey

{"title":"Platelet-Rich Fibrin Combined with Perforated Versus Non-Perforated Collagen Membrane in Treatment of Class II Gingival Recession (A Comparative Clinical Study)","authors":"Mahmoud Abd-Elsamee, M. Edrees, Ibraheem Mowafey","doi":"10.21608/aadj.2022.267323","DOIUrl":"https://doi.org/10.21608/aadj.2022.267323","url":null,"abstract":"Aim: This study aims to evaluate the efficacy of platelet rich fibrin (PRF) in combination with perforated versus non-perforated collagen membrane in treatment of class II gingival recession. Subjects and Methods : fourteen patients having at least one tooth with Miller’s Class II buccal/labial gingival recession defect after phase I therapy were classified into two groups, group 1 was treated with coronally advanced flap (CAF) combined with PRF membrane along with perforated collagen membrane and group 2 was treated with CAF combined with PRF membrane along with non-perforated collagen membrane. Clinical parameters were recorded at baseline, 1, 3 and 6 months postoperatively. Results: Both treatment groups showed significant root coverage, probing pocket depth (PPD) reduction, clinical attachment (CAL) gain and increase in width of keratinized gingiva (WKG) 6 months after surgery compared with baseline. However, there was a highly significant increase in WKG and CAL gain when collagen membrane was perforated. Conclusion: The perforated collagen membrane demonstrated clinical advantages beyond that achieved by the non-perforated one.","PeriodicalId":136230,"journal":{"name":"Al-Azhar Assiut Dental Journal","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134584168","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

A Comparison of Osseous Defects Healing After Surgical Enucleation of Periapical Lesions in The Presence of Hydroxyapatite and Nanohydroxyapatite (A Clinical Study) 羟基磷灰石与纳米羟基磷灰石对根尖周围病变去核术后骨缺损愈合的影响(临床研究)

Al-Azhar Assiut Dental Journal Pub Date : 2022-10-01 DOI: 10.21608/aadj.2022.267292

Amira Elkholly, M. Negm, Reham Hassan, N. Kamel

{"title":"A Comparison of Osseous Defects Healing After Surgical Enucleation of Periapical Lesions in The Presence of Hydroxyapatite and Nanohydroxyapatite (A Clinical Study)","authors":"Amira Elkholly, M. Negm, Reham Hassan, N. Kamel","doi":"10.21608/aadj.2022.267292","DOIUrl":"https://doi.org/10.21608/aadj.2022.267292","url":null,"abstract":"Aim: to evaluate the bone healing in failed endodontically treated teeth after surgical enucleation of periapical lesions and packing of hydroxyapatite, and nanohydroxyapatite powder periapically. Subjects and methods: the study was established on sixteen patients having periapical radiolucency in single rooted teeth. The selected teeth were divided into two groups: Group A and Group B; of 8 teeth each. All the teeth were retreated in two visits. In the first visit the old filling was removed then irrigation with sodium hypochlorite was done. Di-antibiotic paste (ciprofloxacin and metronidazole) was used to fill the canals for 10 days. In the second visit the canals were obturated with Pro Taper gutta-percha points and root canal sealer followed by surgical intervention in the same day. Apicoectomy and periapical curettage were established. In both the groups, after preparation of root end cavity, it was filled with MTA followed by place-ment of regeneration material in the curetted periapical defect (hydroxyapatite (group A) and nanohydroxyapatite (group B)). In both groups, patients recall visits were scheduled at 1, 3, and 6 months time intervals for clinical and radiological evaluation. Results: after one month; there was a statistically significant difference between the median percentage changes in lesions size in the two groups. After three and six months; there was no statistically significant difference between the two groups. Conclusion: It was concluded that nanohydroxyapatite produced faster bone regeneration in the first three months than hydroxyapatite. However, hydroxyapatites produce bone regeneration after six months. cysts or abscesses 2, 3 . Endodontic therapy success depends on complete periapical repair and regeneration. Most of the time periapical lesions may achieve successful healing after non-surgical root canal treatment 4 . However, some cases with persisting symptoms or recurrent infection requires periradicular","PeriodicalId":136230,"journal":{"name":"Al-Azhar Assiut Dental Journal","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132727387","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