Alexandria Dental Journal最新文献

{"title":"EVALUATION OF BONE HEALING BY MESENCHYMAL STEM CELLS IN RABBITS (AN EXPERIMENTAL STUDY)","authors":"Fadi Fouad Salib, Magda Mohamed Saleh, R. Mehanna, Marwa Essawy, L. Melek","doi":"10.21608/adjalexu.2024.246336.1431","DOIUrl":"https://doi.org/10.21608/adjalexu.2024.246336.1431","url":null,"abstract":"BACKGROUND: Large bone defects are considered a massive challenge in the field of oral and maxillofacial surgery. Cell Therapy using bone marrow-derived mesenchymal stem cells (BM-MSCs), as an alternative technique, has effective potentialfor bone regeneration. AIM OF THE STUDY : To compare histologically the bone healing rate of critical size defects in rabbit tibia using mesenchymal stem cells versus untreated defects. MATERIALS AND METHODS: Critical-sized defects were prepared on the tibia of rabbits. Experimental groups were divided into 2 groups: (a) Control group; untreated rabbits left for spontaneous healing, (b) collagen sponge with MSCs treated group. Sacrificing of rabbitswas done at 2 and 6-week intervals . RESULTS :Bone defects treated with BM-MSCs showed asignificant increase in the healing rate compared to the control group.Histological examination showed immature bone trabeculae lined with plump active osteoblasts with minimal amount of newly formed blood vessels andalmost no inflammatory cell infiltration at the 2-week interval. Furthermore, at the 6-weeks interval the defects were almost healed with mature thickened dense bone trabeculae lined by fattened osteoblasts with no inflammatory infiltration. CONCLUSION: BM-MSCs are a promissing tool for bone regeneration.","PeriodicalId":7723,"journal":{"name":"Alexandria Dental Journal","volume":"111 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141666828","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}

{"title":"EVALUATION OF THE STABILITY OF IMMEDIATE IMPLANT PLACEMENT IN MANDIBULAR MOLAR INTER-RADICULAR SEPTUM USING OSSEODENSIFICATION TECHNIQUE (CLINICAL TRIAL)","authors":"Eiman Mohamad Malak, S. Osman, L. Melek","doi":"10.21608/adjalexu.2024.241627.1421","DOIUrl":"https://doi.org/10.21608/adjalexu.2024.241627.1421","url":null,"abstract":"BACKGROUND: Immediate implant placement (IIP) is a valid technique for replacement of badly destructed teeth with fewer surgical procedures and increased levels of patient comfort. OBJECTIVES: To evaluate the stability of immediate implant inserted in mandibular molar inter-radicular septum using osseodensification technique. MATERIALS AND METHODS: Ten patients with ten lower molars to be extracted were chosen according to a list of inclusion and exclusion criteria. The participants undergone atraumatic tooth extraction, then the inter-radicular septum was densified using densah burs, immediate implants were installed, followed by bone graft placement in the gap between the implant and the socket walls, and a healing abutment was placed. Interrupted sutures were then placed around the healing abutment. Assessment included measurements of implant stability using the Osstell device immediatel after implant placement and after 3 months post-operatively. Also, bone density surrounding the implant was measured pre-operatively, immediately post-operatively and after 3 months post-operatively. RESULTS: The results revealed that Secondary Stability (ISQ) three months postoperatively with a mean±SD. of 76.20±5.43 was statistically significantly increased compared to Primary Stability (ISQ) immediately after implant insertion with a mean±SD. of 65.20±4.96( p <0.001). The bone density was significantly increased immediately postoperatively and three months postoperatively compared with preoperatively ( p <0.001, p =0.002; respectively). CONCLUSION: Osseodensification using densah burs was found to be an efficient procedure in increasing stability of immediately placed dental implants in molar inter-radicular septum.","PeriodicalId":7723,"journal":{"name":"Alexandria Dental Journal","volume":"102 10","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141667370","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}

{"title":"INVESTIGATING THE EFFECTS OF GLUMA DESENSITIZING AGENT ON REDUCING POST-OPERATIVE SENSITIVITY FOLLOWING COMPOSITE RESTORATIONS","authors":"Nessrin Magdy Abd- Elkader, Waleed Abd EL Meguid El Mahy, Rania Reda Afifi","doi":"10.21608/adjalexu.2024.263797.1467","DOIUrl":"https://doi.org/10.21608/adjalexu.2024.263797.1467","url":null,"abstract":"","PeriodicalId":7723,"journal":{"name":"Alexandria Dental Journal","volume":"23 10","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141387889","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}

{"title":"EVALUATION OF ATRAUMATIC AXIAL TOOTH EXTRACTION USING BENEX SYSTEM IN IMMEDIATE IMPLANT IN MAXILLARY ANTERIOR TEETH. (PROSPECTIVE CLINICAL TRIAL)","authors":"G. I. Mabrouk, M. Fahmy, Adham Alashwah, Yehia Elmahallawy","doi":"10.21608/adjalexu.2024.272613.1477","DOIUrl":"https://doi.org/10.21608/adjalexu.2024.272613.1477","url":null,"abstract":"","PeriodicalId":7723,"journal":{"name":"Alexandria Dental Journal","volume":"223 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141387359","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}

{"title":"EFFECT OF ASPARTAME ON ALBINO RATS’ PAROTID SALIVARY GLANDS (LIGHT MICROSCOPIC STUDY)","authors":"H. E. Elfarnwany, Salwa Abdelsamad Younis, S. El-Darier, A. S. Eissa","doi":"10.21608/adjalexu.2024.246695.1437","DOIUrl":"https://doi.org/10.21608/adjalexu.2024.246695.1437","url":null,"abstract":"","PeriodicalId":7723,"journal":{"name":"Alexandria Dental Journal","volume":"272 51‐54","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141386824","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}

{"title":"EVALUATION OF BONE AUGMENTATION USING AUTOLOGOUS TOOTH SHELL IN THE ESTHETIC ZONE OF NARROW MAXILLA (A CLINICAL STUDY)","authors":"Salma Ahmed fouad Elshenawy, Samraa A. Elsheikh, Marwa G. Noureldin","doi":"10.21608/adjalexu.2024.240808.1424","DOIUrl":"https://doi.org/10.21608/adjalexu.2024.240808.1424","url":null,"abstract":"INTRODUCTION: Following extraction of tooth, the alveolar bone is resorbed in different directions with variant measurements. The decrease in alveolar bone width is higher in amount than alveolar bone height resorption, and is most significant buccally. The autologous tooth shell (ATS) had been of great interest in dental research as for it's low cost and less aggressiveness than Autogenous bone (AB), also it showed similar composition to bone tissue. Furthermore, ATS proved to have osteogenic and osteoconductive characteristics as AB. MATERIALS AND METHODS: A prospective clinical trial was carried on 12 patients of both sexes between the ages of 20-45 years. Patients who were radiologically diagnosed with narrow maxillary ridge in the anterior and/or premolar area. Tooth shells were used to augment the narrow ridge, by fixing them buccally with osteosynthesis screws. Cerabone® bone granules and a resorbable collagen membrane were used. Measurement of horizontal ridge width (HRW) was done both preoperatively (HRW1) and 4 months postoperatively (HRW2) using CBCT. Participant patients were fully informed of the clinical trial and had to sign a written informed consent. RESULTS: The age of the selected sample size varied from 20 to 45 years old, with a mean of 42.08±2.19 , and there were three men and nine females. 10 cases underwent uneventful recovery showing no signs of infection while 2 cases showed dehiscence. ATS persisted and united to the narrow ridge four months after surgery. ATS was utilized in the augmentation of the narrow ridge, from a narrow ridge width HRW1 of mean value 4.46±0.51 mm to the final HRW2 of mean value 6.85±0.63mm after 4 months of surgery. The average horizontal ridge width gain HRWG was 2.40±0.41 mm. Cancellous bone density of augmented maxillary ridge showed minimal or no significant change 4 months post operatively. CONCLUSION: This study showed that autologous tooth shell improves esthetics and bone healing and bone thickness in the esthetic zone of maxilla. ATS is a potential replacement for traditional autologous bone grafts in the future.","PeriodicalId":7723,"journal":{"name":"Alexandria Dental Journal","volume":"213 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141387083","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}

{"title":"APICAL MICROLEAKAGE OF ROOT END RESECTED TEETH AFTER ORTHOGRADE OBTURATION USING A BIOCERAMIC SEALER: AN IN VITRO BACTERIOLOGICAL STUDY","authors":"M. M. Mansour, Sybel M. Moussa, Marwa A. Meheissen, Mahmoud Aboelseoud","doi":"10.21608/adjalexu.2024.266923.1475","DOIUrl":"https://doi.org/10.21608/adjalexu.2024.266923.1475","url":null,"abstract":"BACKGROUND: E ndodontic surgery becomes a practical choice when non-surgical interventions are ineffective or are not expected to yield improved results. Limited access and technical challenges may prevent the implementation of controlled retrograde procedures in certain teeth . AIM OF THE STUDY: The objective was to compare bacterial microleakage of root end resected teeth after orthograde obturation using a single cone technique with a bioceramic sealer versus MTA retrofilling. MATERIALS AND METHODS: Thirty human extracted maxillary incisors were prepared and divided randomly into three groups. In group1, the canals were filled using the single cone technique with bioceramic sealer, followed by root resection 3 mm from the apex. Group 2 received standard retrograde ultrasonic preparation and retrograde obturation with mineral trioxide aggregate (MTA) and group 3 negative control. Subsequently, the roots were placed in a sterile experimental model and filled coronally with E. faecalis bacterial suspension for 30 days. Turbidity and the time taken for turbidity in the broth were analyzed to assess bacterial microleakage from the canal . RESULTS: The study revealed that there was no statistically significant difference in bacterial microleakage observed between the two test groups . CONCLUSION: Performing root end resection following a single cone technique obturation, along with a bioceramic sealer, may offer a favorable alternative approach when compared to the established gold standard MTA retrograde obturation.","PeriodicalId":7723,"journal":{"name":"Alexandria Dental Journal","volume":"12 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141273228","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}

{"title":"EVALUATION OF IMMEDIATE LOADED IMPLANTS PLACED USING THE SOCKET SHIELD TECHNIQUE IN THE ESTHETIC ZONE (A RANDOMIZED CONTROLLED CLINICAL TRIAL)","authors":"Mohamed Shehata, Adham Alashwah, Rania Ahmed, Ahmed Ahmed","doi":"10.21608/adjalexu.2023.192795.1351","DOIUrl":"https://doi.org/10.21608/adjalexu.2023.192795.1351","url":null,"abstract":"INTRODUCTION: Once teeth are extracted, the alveolar bone with the labial bone plate reduction occurs as a consequence of the absence of blood flow. The socket-shield technique )SST) was introduced to end these consequences. OBJECTIVES: Our goal was to compare between the conventional approach and the SST perspectives; clinical and radiographical. MATERIALS AND METHODS: 20 individuals were parted into 2 groups; the study group: The (SST) with immediate loading was applied 10 implants in the anterior maxilla. The control group: 10 implants were instantly placed using immediate implant placement (IIP) along with the immediate loading. For both groups, CBCT-scans were pre-operatively evaluated and 6 months period for evaluating the dimensional changes within the labial bone plates including both the vertical and horizontal bone loss (VBL, HBL), measuring of clinical attachment loss (CAL), the dental implant stability quotients (DISQs) and the pink esthetic scores (PES), RESULTS: The mean Dental Implant Stability (DISQ) was 77.92+2.44 and 75.14+2.34 in control and study groups respectively 6 months postoperatively, the average HBL bone level 6 months postoperative in Group 1 was 6.88+0.97mm, and in Group 2 was 6.74+0.93mm. While mean VBL level after 6 months of follow up in Groups 1 and 2 was 0.93+0.57mm, and 1.55+0.85mm respectively. The mean PES in Group 1 was 12.10+0.57 after 6 months, while in Group 2 was 7.80+1.14. The mean CAL 6 months Post-operatively in Group 1 and Group 2 was 0.90+0.57mm and 1.50+0.85mm respectively. There was high statistically significant difference between the study and control group. CONCLUSIONS: The technique of socket-shield was conserved the labial root part","PeriodicalId":7723,"journal":{"name":"Alexandria Dental Journal","volume":"31 9","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141007785","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}

{"title":"Comparison of Autogenous Fresh Demineralized Dentin and Beta-Tricalcium Phosphate in Immediate Implant Placement of Mandibular Molars (Randomized Clinical Controlled Trial)","authors":"Ahmed Abulhassan, Gaffar El Halawani, Ossama Sweedan","doi":"10.21608/adjalexu.2023.216442.1389","DOIUrl":"https://doi.org/10.21608/adjalexu.2023.216442.1389","url":null,"abstract":"INTRODUCTION: Autogenous fresh demineralized dentin, a graft used in immediate implant placement, has proven successful. It shares a similar chemical composition to human bone, making it biocompatible and capable of promoting osteoinductive and osteoconductive properties. β-tricalcium phosphate (β-TCP) is a widely employed synthetic bone graft material for filling gaps during immediate implant placement, particularly in posterior molars. OBJECTIVES: To compare the clinical and radiographic effects of fresh demineralized dentin and β-tricalcium phosphate as graft materials on bone density, crestal bone loss, and implant stability used in alveolar bone regeneration for immediate implant placement in mandibular molars. MATERIALS AND METHODS: The study included sixteen patients with unrestorable mandibular molars recruited and randomly allocated into two equal groups. The study group received fresh Demineralized Dentin Grafting (DDG), while the control group received β-tricalcium phosphate. All patients were followed clinically and radiologically for six months to assess parameters such as implant stability, crestal bone loss, and bone density. RESULTS: Crestal bone loss was significantly higher in the β-tricalcium phosphate group compared wtih the DDG group. Implant stability was significantly higher in the DDG group compared with the β-tricalcium phosphate group; the percentage change of bone density was significantly higher in the DDG group compared with the β-Tri Calcium Phosphate group. CONCLUSION: Autogenous fresh demineralized dentin may be a more favorable graft material compared to β-tricalcium phosphate for alveolar bone regeneration in immediate implant placement of mandibular molars. Fresh demineralized dentin was associated with superior crestal","PeriodicalId":7723,"journal":{"name":"Alexandria Dental Journal","volume":"314 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141012391","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}

{"title":"EVALUATION OF COMPUTER ASSISTED DESIGN COMPUTER ASSISTED MANUFACTUREING (CAD/CAM) OSTEOTOMY GUIDE IN BILATERAL MANDIBULAR SAGITTAL SPLIT OSTEOTOMY (A RANDOMIZED CONTROLLED CLINICAL TRIAL)","authors":"Ahmed Shararah, A. Sharara, Samraa A. Elsheikh, Adham Alashwah, Marwa G. Noureldin","doi":"10.21608/adjalexu.2023.222909.1398","DOIUrl":"https://doi.org/10.21608/adjalexu.2023.222909.1398","url":null,"abstract":"INTRODUCTION: The introduction of CAD/CAM technology in orthognathic surgery planning has facilitated the procedure and enabled more predictable results. This study was designed to introduce and evaluate the clinical use of a CAD/CAM surgical guide for bilateral sagittal split osteotomy (BSSO) in the correction of dentofacial deformity cases with skeletal class 2 or 3. AIM OF THE STUDY: To evaluate the efficiency of guided osteotomy in orthognathic surgery. Materials and Methods: This study was conducted on 20 patients who underwent bilateral sagittal osteotomy (BSO) procedures. Ten patients (the control group) were treated with the conventional method, without an osteotomy guide. The other 10 patients (the study group) were treated with a CAD/CAM bone-borne guide. Postoperative patient evaluation was performed clinically by comparing the operation time post operative pain and sensory nerve involvement at 1 week, 2 weeks, and 3 months. Radiographic evaluation was performed by computed tomography (CT) at 1 month postoperatively. RESULTS: The surgical outcome revealed the satisfactory correction of their skeletal deformity. The study group showed significantly better results than control group concerning operation time, Visual Analogue Scale, and sensory nerve involvement (p ≤ 0.05.) CONCLUSION: Within the limitations of this study, it can be considered that CAD /CAM osteotomy guide for BSSO is superior to non-guided BSSO regarding the operation time and sensory nerve involvement.","PeriodicalId":7723,"journal":{"name":"Alexandria Dental Journal","volume":"345 7","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141012093","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}