Sarah El Ashry, Shaimaa Mahfouz Omer, Mohamed Farag
{"title":"The Extent of Secondary Caries Formation around some Restorative Materials: An In Vitro Study","authors":"Sarah El Ashry, Shaimaa Mahfouz Omer, Mohamed Farag","doi":"10.21608/dsu.2023.126033.1140","DOIUrl":"https://doi.org/10.21608/dsu.2023.126033.1140","url":null,"abstract":"","PeriodicalId":474158,"journal":{"name":"Dental Science Updates (Print)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135248359","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}
Noha Elsayed, Enas Hegazy, Mohamed Amin, Mohamed Farag, Shaimaa Omer
{"title":"Efficacy of Combination of Biodentine and Simvastatin as Pulp Capping Materials in Vital Pulpotomy of Primary Molars: Randomized Clinical Trial","authors":"Noha Elsayed, Enas Hegazy, Mohamed Amin, Mohamed Farag, Shaimaa Omer","doi":"10.21608/dsu.2023.187358.1155","DOIUrl":"https://doi.org/10.21608/dsu.2023.187358.1155","url":null,"abstract":"Introduction: Dental caries is a specific disease caused by long-term contact between the host, diet, and microorganisms on the tooth surface. This causes the inorganic parts of the enamel and dentin to break down. Aim: This study aimed to assess the clinical and radiological effectiveness of using Simvastatin in combination with Biodentine as a pulpotomy agent for vital primary molars. Materials and Methods: sixty primary molars in 20 children aged from 4-7 years old were selected from Outpatient Clinic of Pediatric Dentistry Department, Faculty of Dentistry, Suez Canal University and randomly allocated to three groups, Biodentine, Simvastatin and combination of Biodentine and simvastatin. All treated teeth were clinically evaluated at (1M,3Ms,6Ms,9Ms,12Ms) for presence of pain, tender on percussion, swelling/sinus or pathological tooth mobility and evaluated radiographically at (3Ms,6Ms,9Ms,12Ms) for loss of lamina dura, widening in periodontal ligament space presence of external/internal resorption or presence of periapical /furcation radiolucency. Result: The overall success rate was 100%, 5%, and 90% for Biodentine, Simvastatin, and the combination of Biodentine and Simvastatin groups, respectively. After a year of follow-up, the groups had a highly significant difference in overall success rates. Conclusion: After one year follow up Our findings demonstrated remarkable results of combination of Biodentine and simvastatin in pulpotomy of primary teeth. Therefore, combination of Biodentine and simvastatin may be considered as an effective material in pulpotomy of primary teeth because of its successful results. While Simvastatin showed failure clinically and radiographically.","PeriodicalId":474158,"journal":{"name":"Dental Science Updates (Print)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135248555","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 Loading Mini-implant versus Traditional Implant (Clinical and Radiographic Study)","authors":"Abdallah Mokhtar, Tamer Hamed, Mohamed El-Sholkamy","doi":"10.21608/dsu.2023.158093.1141","DOIUrl":"https://doi.org/10.21608/dsu.2023.158093.1141","url":null,"abstract":"Introduction: Replacing lost teeth by employing dental implants has represented a challenge since ancient times. Using mini-implants is more favorable than conventional ones, not only for surgeons but also for patients. Aim: The current study aimed to compare the conventional and mini dental implants regarding primary stability, vertical bone loss after three-and nine-month post-surgery, plaque index, gingival index, and pocket depth in three-and nine-month. Materials and Methods: The current study used two types of dental implants, conventional dental implants (Dentium super line) and mini dental implants (Dentium slim line). Accordingly, two examination groups were defined, Group I and Group II. Each group included eight dental implants in healthy patients aged 31-48. All implants were subjected to clinical and radiographic examinations either before surgery or after surgery. Both conventional and mini-implants were checked based on primary stability, vertical bone loss after three-and nine-months post-surgery, plaque index, gingival index, and pocket depth in three-and nine-months. Results: The results showed no significant differences between the conventional and mini dental implants regarding the primary stability and vertical bone loss in three-and nine months. Also, clinically there is no significant difference in plaque index, gingival index, and pocket depth. Conclusion: The mini-implant can be a promising alternative when the ridge width does not accommodate the conventional type.","PeriodicalId":474158,"journal":{"name":"Dental Science Updates (Print)","volume":"307 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135248366","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}
Mohamed Emetwaly el shazly, Tarek Abdelhamid, Mohamed Osama Atta
{"title":"Marginal Integrity of Temporary Bridges Constructed by CAD/CAM, Three Dimentional Printer and Conventional Method","authors":"Mohamed Emetwaly el shazly, Tarek Abdelhamid, Mohamed Osama Atta","doi":"10.21608/dsu.2023.194261.1161","DOIUrl":"https://doi.org/10.21608/dsu.2023.194261.1161","url":null,"abstract":"Introduction: Temporary restorations are very important in fixed prosthodontic rehabilitation, especially when long-term treatment is needed. Aim: This study aimed to compare the vertical marginal gap of temporary bridges constructed by CAD/CAM, 3D printing and conventional method. Material and methods: The mandibular right second premolar and second molar of a dentoform acrylic resin cast was prepared to receive full coverage fixed partial denture. The model was scanned with Ceramill Map 400 optical scanner. A STL file was transferred to Ceramill motion 2 milling machine to mill twenty-one working models. One model was scanned by In Eos X5 scanner and twenty one standardized full contour temporary bridges were constructed by three different techniques. The bridges (n=21) were grouped into three groups (n=7); group A (CAD/CAM), group B (3D printing ) and group C (Conventional). The retainers marginal gaps were measured using a digital stereomicroscope. Bridges were cemented using Temp Bond NE cement then their vertical marginal gaps were remeasured. Data were analyzed by one way ANOVA and Post Hoc Tests at p≤0.05. Results: The highest mean value was reported with the conventional samples (120.42±6.95 µm) and the lowest value was reported with the 3D printed samples (68.98±9.93 µm) before cementation, while after cementation the highest mean value was reported with the conventional samples (216.6±14.15 µm) and no statistically significant difference between the 3D printed samples and CAD/CAM samples. Data were analyzed by one way ANOVA and Post Hoc Tests at p ≤ 0.05. Conclusion: The method of fabrication of temporary bridges had an effect on the vertical marginal gap.","PeriodicalId":474158,"journal":{"name":"Dental Science Updates (Print)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135248352","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 Sandblasting on Retention of Lingual Fixed Retainers: An in Vitro Study","authors":"Mohamed ElGendy, Hanady Samih, Ahmed Ramdan","doi":"10.21608/dsu.2023.170922.1147","DOIUrl":"https://doi.org/10.21608/dsu.2023.170922.1147","url":null,"abstract":"Introduction : Lingual fixed retainers are one of the commonest retention appliances used today. However, wires may debond or break causing relapse. Sandblasting was introduced as a method of enhancing bonding of wires to avoid these shortcoming. Aim : The aim of this study was to evaluate the effect of enamel sandblasting before acid etching and wire sandblasting on the retention of two different lingual fixed retainers. Materials and Methods : Fifty six acrylic blocks, each one contained two primary bovine incisor teeth contacting each others, were used in testing shear bond strength of 0.016x0.022 multistranded st.st. dead soft wire and twisted 0.032 coaxial wire. Blocks were divided equally into 2 main groups according to type of wire used; Each group was subdivided into 4 subgroups of 7 blocks to test the effect of sandblasting to either the wire or enamel on the shear bond strength of rectangular and round wire. Wires were bonded on lingual surfaces of teeth using Reliance LCR adhesive. Shear bond strength was tested using Instron testing machine. Results : It was found that there was statistically significant difference between sandblasted wire bonded to non-sandblasted enamel and non-sandblasted wire bonded to sandblasted enamel for both types of wires. This showed that enamel sandblasting before acid etching didn’t increase bond strength of non-sandblasted wires. Conclusions : Sandblasted wires bonded to non-sandblasted enamel showed highest mean shear bond strength values over other groups. There was no significant difference in shear bond strength between both types of wires. Sandblasting enamel before acid etching didn’t increase shear bond strength of the wires.","PeriodicalId":474158,"journal":{"name":"Dental Science Updates (Print)","volume":"130 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135248373","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}
Ayman Mohamed, Mohamed Eid, Eman Elsharrawy, Mohammed Hammed
{"title":"Comparative Study between Low Level Laser Therapy and Ultrasound Therapy for minimizing Postoperative Trismus after Surgical Removal of Mandibular Third Molars","authors":"Ayman Mohamed, Mohamed Eid, Eman Elsharrawy, Mohammed Hammed","doi":"10.21608/dsu.2023.165491.1144","DOIUrl":"https://doi.org/10.21608/dsu.2023.165491.1144","url":null,"abstract":"Introduction: Oral and maxillofacial surgeons regularly perform the procedure of extracting impacted mandibular 3 rd molars. Unfavorable postoperative side effects, like trismus in the first few days following surgery, are frequently linked to this procedure. Aim: In this study, conservative treatment, low-level laser therapy, and ultrasound therapy were compared to each other and standard dental care following the surgical removal of an impacted 3 rd mandibular molar. Materials and methods: Participants in this study included 30 healthy individuals who had previously undergone surgery to extract partially or completely impacted mandibular third molars. They were split into ten groups of ten patients using a randomization process. After having an impacted third molar surgically removed from their mouths, 10 patients in Group A; were given analgesics and antibiotics to treat their pain. In group B patients, an impacted lower third molar was surgically removed, and intraoral, and extraoral low-level laser therapy was also administered. There were ten patients in this group (LLLT). Group C : After the previous medications were prescribed, ten patients with an impacted lower 3 rd molar surgically removed were given low-intensity pulsed ultrasound therapy extra orally. This was done after the impacted lower 3 rd molar had been surgically removed. After surgery, patients’ truisms were evaluated two and seven days later. Results: The outcomes demonstrated that conservative treatment, ultrasound application, and low-level laser therapy all statistically significantly (p ˂ 0.05) decreased trismus. Conclusion: LLLT is more effective than ultrasound and conservative treatment at reducing trismus after surgery to remove impacted mandibular 3 rd molars.","PeriodicalId":474158,"journal":{"name":"Dental Science Updates (Print)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135248406","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":"Accuracy of Cone Beam Computed Tomography in Volumetric Evaluation of the Mandibular Condyle","authors":"Nehal Ezz, Ahmad El Rawdy, Gihan El-Desouky","doi":"10.21608/dsu.2023.155611.1139","DOIUrl":"https://doi.org/10.21608/dsu.2023.155611.1139","url":null,"abstract":"Introduction: The final size of the mandible and several malocclusions are significantly influenced by the condyle. Recently, there has been a lot of interest in using CBCT imaging to evaluate condyle shape and volume. In order to suggest its use in clinical decision-making, it is required to confirm that the information received from CBCT is accurate and trustworthy for measuring condylar volume. Aim: To assess the precision of cone-beam computed tomography’s volumetric analysis of the mandibular condyle (CBCT) in comparison with real physical volumetric measurements (gold standard). Materials and Methods: The present study was conducted on 6 dry human mandibles including 12 condyles. Volumetric measurements of each condyle were carried out using CBCT by automatic segmentation. A replica model of the condyle was obtained and utilized to evaluate the condyle’s actual physical volume using the water displacement method (gold standard). The radiographic volumetric measurements of the condyles were compared to the real volumetric measurements and assessed for accuracy. Results: Condylar real physical and CBCT volumetric measurements showed very good intra and inter observer agreement . Condylar volume assessment showed higher CBCT values in comparison to the physical ones with a mean error = 0.34 cm 3 , denoting an overestimation in CBCT readings =17.74 %. Despite the fact that the mean physical and CBCT measures were statistically different, the correlation coefficient (r) showed a strong direct correlation between physical and CBCT volume estimations. Conclusion: CBCT volumetric measurements using automatic segmentation is a reproducible, fast and feasible method for volume segmentation of mandibular condyles. However, for application in the dental office, clinicians should be cautious when planning treatment procedures involving condylar volume assessment since CBCT tends to significantly overestimate the obtained measurements.","PeriodicalId":474158,"journal":{"name":"Dental Science Updates (Print)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135248380","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}
Nada El Mowafy, Gehan El Desouky, mohamed nadim, asmaa abdullah
{"title":"Accuracy Of Cone Beam Computed Tomography In Horizontal Linear Skull Measurements","authors":"Nada El Mowafy, Gehan El Desouky, mohamed nadim, asmaa abdullah","doi":"10.21608/dsu.2023.155016.1138","DOIUrl":"https://doi.org/10.21608/dsu.2023.155016.1138","url":null,"abstract":"Introduction: Over the past century, craniometric measurements have been considered of great significance in the field of dentistry, especially in the field of orthodontics and orthognathic surgery. Over the last decade, the usage of Cone Beam Computed Tomography (CBCT) has tremendously escalated to overcome the drawbacks of 2D imaging techniques. Accordingly, it has been the focus of many studies to evaluate the accuracy of this radiographic technique in obtaining linear skull measurements. Aim : The aim of this study was to determine the reliability of linear measurements obtained from CBCT in comparison to direct skull measurements. Materials and Methods: This study was conducted on twelve dry human skulls. Three direct horizontal linear parameters were obtained between certain identified landmarks on each skull using a digital caliper. The skulls were subjected to CBCT examination. The measurements were obtained from CBCT 3D Volume Rendering (3D VR) images, then compared to the real skull measurements and statistically assessed for accuracy. Results: The results of the current study revealed very good intra and inter-observer agreement regarding all the assessed linear measurements obtained from gold standard and CBCT scans. In addition, CBCT showed non-significant underestimated values with difference ranging from (-0.13 mm, -0.10 %) to (-0.32 mm, -0.34 %) in comparison to direct skull measurements (gold standard). Conclusion: Linear measurements derived from CBCT are accurate and reliable and can be confidently used for different maxillofacial clinical applications especially in orthodontics.","PeriodicalId":474158,"journal":{"name":"Dental Science Updates (Print)","volume":"193 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135248547","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":"Assessment of Cleaning Ability of Two Rotary Files in Different Motions: A SEM vitro study","authors":"Ahmed Rakha, Marwa Sharaan, mai Ragab","doi":"10.21608/dsu.2023.194249.1160","DOIUrl":"https://doi.org/10.21608/dsu.2023.194249.1160","url":null,"abstract":"Introduction: Adequate cleaning and shaping is mandatory to achieve successful endodontic treatment. Smear layer is formed because of dentin cutting and consists of pulp tissue remnants, dentin chips and bacteria which must be removed before root canal obturation. Continuous improvement in Ni-Ti rotary instrument is crucial to decrease the working time, cost and provide safer shaping process. Aim: This study meant to evaluate the cleaning action of AF F-One blue and RECIPROC blue files to eliminate smear layer using Scanning-Electron Microscope. Materials and Methods: This study was conducted on 60 Disto-buccal root canals of extracted human permanent maxillary molars. Roots were prepared using RECIPROC blue file in half the samples and AF-F one blue file in the other half, roots were then divided vertically and examined using scanning electron microscope then scores were recorded using Hulsman scoring system, the mean number of both groups was tested using Mann–Whitney U-tests at significant levels of 0.05 (P value ≤0.05). The existence of smear layer in both groups was compared by chi-square test. Results: No significant difference was detected between the two systems concerning root canal cleanliness according to the Mann-Whitney statistical test (P>0.05) . Conclusion: The new flat sided design file AF F-One blue seems to be a promising rotary file system but need further in-vivo studies with larger sample size.","PeriodicalId":474158,"journal":{"name":"Dental Science Updates (Print)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135248988","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":"Three-Dimensional Evaluation of Morphologic Differences of Maxillary Lateral Incisor and Canine in Palatal versus Buccal Impacted Canine","authors":"Alaa Barakat, Waleed Refaat, Wael Selim, Abbadi Elkadi","doi":"10.21608/dsu.2023.187684.1156","DOIUrl":"https://doi.org/10.21608/dsu.2023.187684.1156","url":null,"abstract":"Introduction: The morphological differences between buccally and palatally impacted maxillary canines and their adjacent lateral incisors have always been thought to be an indicating factor for the impaction site. Aim: The present study was conducted to compare the morphological differences of maxillary canine and adjacent lateral incisor in buccally versus palatally impacted canine cases using Cone Beam Computed Tomography (CBCT). Material and Methods: Forty -two CBCT scans of patients having unilateral impacted maxillary canine were collected from the archives of the Oral Radiology department, Faculty of Dentistry, Suez Canal University. The scans were divided into two buccal and palatal impaction study groups, each comprising 21 scans. The contra-lateral normally erupted canine side was used as control for comparison with each study group. The following parameters were evaluated using OnDemand3DApp software for both the canine and the adjacent lateral incisor in the study and control groups: Mesiodistal width of the crown, Anatomic height of the crown, Length of the root, Volume of the crown, Volume of the root and Density of the bone surrounding the maxillary canine. Results: Buccally impacted canines and their adjacent lateral incisors showed increase in morphological parameters compared to their control side. Palatally impacted canines showed no statistically significant differences compared to the control side, while their adjacent lateral incisor showed a decrease in size compared to the control side. Conclusion: Buccally impacted canines and the adjacent lateral incisors are larger in size compared to normal erupted corresponding canines in unilateral impacted canine cases. Palatally impacted canines are of equal size as their unimpacted canines, while their adjacent lateral incisors are smaller in size than their counterparts.","PeriodicalId":474158,"journal":{"name":"Dental Science Updates (Print)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135248339","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}