Al-Azhar University, Faculty of Dental Medicine, Girls BranchAl-Azhar Dental Journal for Girls2537-03083420161001The Effect of using Cross-Linking Agent with Nano-Adhesive on the Bonding to Sound and Caries Affected Dentin247256517810.21608/adjg.2016.5178ENMohamedAbdelaalLecturer of Operative Dentistry, Faculty of Oral and Dental Medicine, Nahda UniversityMahaNiazyProfessor and head of Operative Dentistry Department, Faculty of Dental Medicine Al-Azhar University, Girls BranchRandaHafezProfessor of Operative Dentistry, Faculty of Oral and Dental Medicine, Cairo UniversityAsmaaYassenAssociate Professor of Operative Dentistry, Faculty of Oral and Dental Medicine, Cairo UniversityJournal Article20180201Aim: This study was designed to evaluate the microtensile bond strength and the effect of storage on using two different concentrations (6.5% and 15 %) of grape seed extract cross-linking agent with nano-adhesive single bond universal adhesive to sound and caries affected dentin. Methods: A total of sixty molars was divided into 2 main groups (30 each) according to the type of substrate either sound or caries affected dentin. Each group was divided into three equal subgroups (10 teeth each) according to the treatment with cross linking agent (Grape seed extract (GSE)), either with no treatment with GSE or 6.5% or 15% GSE dissolved in ethyl alcohol anhydrous. Each subgroup was further subdivided into 2 equal subgroups according to the storage period (5 teeth each) either after 24 hours or after 3 months. Resin composite core was built up and then specimens were sectioned to obtain composite-dentin slabs with a cross-sectional area of approximately 1mm2. They were subjected to microtensile bond strength testing at a cross head speed of 1.0mm/min. Statistical analysis was done using three way-ANOVA followed by post hoc test for comparison (P≤ 0.05). Results: The highest microtensile bond strength mean value was recorded for sound dentin and caries affected dentin, specimens treated with 6.5% grape seed extract after 24 hours and 3 months storage period, followed by specimens treated with 15% grape seed extract, while specimens without grape seed extract treatment showed the lowest significant microtensile bond strength mean value. Conclusions: using cross linking agent is considered a beneficial way in improving bonding to sound and caries affected dentin.6.5%concentration of grape seed extract as a cross linking agent is the concentration of choice to be used. Time has a deteriorating effect on the formed resin -dentin bond.Al-Azhar University, Faculty of Dental Medicine, Girls BranchAl-Azhar Dental Journal for Girls2537-03083420161001Comparative Study Between Nasogastric (Ryle) Feeding and Oral Feeding Post- Cleft Palate Repair257264517910.21608/adjg.2016.5179ENMohamedShahinPediatric Surgery unit – Anesthesia department, Al-Azhar Faculty of Medicine, DamiettaYousryAbdelsalamPediatric Surgery unit – Anesthesia department, Al-Azhar Faculty of Medicine, DamiettaJournal Article20180201Background: feeding after surgical correction of cleft palate is an important topic; the method of feeding usually affects the surgery outcome and stress of operation in infants. However, no consensus on the method of feeding for children with cleft palate either pre-or post-operative correction. Aim of the work: to investigate the effect of nasogastric tube (NGT) feeding compared with oral feeding on children in the first 48 hours after primary cleft palate repair. Patients and methods: The study was carried out at Al-Azhar University Hospital (Pediatric Surgery Unit);Damietta and specialized kids hospital during the period from January 2015 to Jun 2016. It included 36 children presented for primary repair of cleft palate. All were undergoing full history taking, clinical examination and laboratory investigations to prepare them for surgical intervention. Those patients were divided into 2 equal groups, each group had 18 patients.Then, after intervention, they followed up to examine the effect of method of feeding either by (NGT) (group 1) or oral route (group 2) on the outcome of surgery and postoperative analgesia requirements. Results: both groups were comparable as<br />regard to demographic characteristics, amount of intraoperative fluids and required analgesia and for postoperative surgical outcome and complications. However, there was statistically significant decrease of Postoperative morphine, paracetamol and Ibuprofen in NG feeding group when compared to oral feeding group (0.13±0.08, 32.50±15.55, 14.44±8.72 vs 0.23±0.13, 51.66±28.43, and 26.38±14.43 respectively). Also, there was significant decrease of number of pain episodes in NGT feeding group when compared to oral feeding group (3.17±2.03 vs 4.77±2.86). On the other hand, there was statistically significant increase of the amount of postoperative feeding in NGT feeding when compared to oral feeding group (137.22±13.52 vs 59.72±18.74). Finally, the total duration of hospital stay was significantly shortened in NGT feeding group when compared to oral feeding group (47.55±15.33 vs 78.66±18.04 hours).<br />Conclusion: NGT feeding is effective when compared to oral feeding post-palatoplasty as it increases consumption of foods and reduce postoperative analgesia requirements. Al-Azhar University, Faculty of Dental Medicine, Girls BranchAl-Azhar Dental Journal for Girls2537-03083420161001A COMPARATIVE PROSPECTIVE CLINICAL STUDY OF TWO DIFFERENT IMPLANT SYSTEM WITH ZIRCONIA ABUTMENT FOR CEMENTED SINGLE TOOTH RESTORATION265276518010.21608/adjg.2016.5180ENSaharAbdel WahabAssociate Professor of Fixed Prosthodontics department, Faculty of Dental Medicine for Girls, Al-AzharUniversity.
Corresponding author.ShadiaLsayedLecturer of Oral and Maxillofacial Surgery, Faculty of Dental Medicine for Girls, Al-Azhar University. Corresponding author.Journal Article20180201Statement of problem. Treatment of tooth loss in the anterior maxilla can involve difficult functional, esthetic, and psychological problems, especially in young patients with otherwise good dentition. Purpose. The purpose of this study was to provide a comparative evaluation of two different implant system (Biohorizons and Dentium) with zirconia abutment in cemented single-tooth restorations. Material and methods. This prospective study of 45 single-tooth replacements with 22 Biohorizons and 23 Dentium dental implants was performed in 30 patients. The patients were selected from the outpatients’ clinic, Faculty of Dental Medicine, Al- Azhar University during the period October 2010 to October 2013. The custom zirconia abutments were fabricated. The restoration was an all ceramic crown for cementation with a framework in zirconia. The first clinical and radiographic follow up was performed one week after crown placement for all patients (baseline examination) then at four, eight and twelve months after crown placement, all patients were recalled and participated in the annual examination. Results. The clinical parameters (plaque and peri-implant<br />gingival indexes) measured at the baseline and 1-year follow-up examination showed non significant differences in Biohorizons and Dentium and gave a satisfactory results. There is a significant difference in probing depth where the Biohorizons gave better result. The bone loss in Biohorizons was lesser than that in Dentium. The mean marginal bone loss was slightly higher (non significant) in the maxilla for both implant systems. During the 1-year follow up period, the survival rate was 100% in Biohorizons implant system and 95.6% in Dentium implants. The titanium screws that attached the abutment to implant were loosened within a few months of insertion of the permanent crown in two cases of Dentium implant. Subjectively all patients were satisfied with their single-tooth restorations supported by both dental implants. Conclusion. Within the limitation of the present study, favorable results obtained with the application of the Biohorizons implant system that supported cemented single-tooth crowns with custom zirconia abutment especially in the anterior region of the maxilla. Further studies are necessary to evaluate the long-term success.Al-Azhar University, Faculty of Dental Medicine, Girls BranchAl-Azhar Dental Journal for Girls2537-03083420161001Effect of Primer Type and Ultrasonic Cleaning on Bonding to Zirconia Ceramic277286518110.21608/adjg.2016.5181ENHudaEl RashedyDentist at Badr hospital, Tanta University.OsamaAbd ElganyAssistant Professor of Fixed Prosthodontics, Faculty of Dental Medicine, Al Azhar University, Cairo, Egypt.SaharAbd El WahabAssistant Professor of Fixed Prosthodontics, Faculty of Dental Medicine, Al Azhar University, Cairo, Egypt.Journal Article20180201Zirconia-based ceramics offer strong restorations in dentistry, but the adhesive bond strength of resin cements to such ceramics is not optimal. The aim of the present study was to evaluate the effect of both primer types and ultrasonic cleaning on bonding to zirconia ceramics.A total number of forty zirconia discs were constructed from prefabricated blanks of zirconia. The discs were mounted on acrylic blocks and randomly divided into two equal main groups (n = 20) According to ultrasonic cleaning. Without ultrasonic cleaning and with ultrasonic cleaning. Every group was subdivided<br />into three subgroups according to type of primer (n= 10) Monobond S primer and Monobond Plus primer Forty composite resin blocks were cemented to zirconia discs by (Variolink II) with its corresponding adhesive components. Shear bond strength of each sample was measured using a universal testing machine at a crosshead speed of 1 mm/min. Shear bond strengths were analyzed through Two-way ANOVA/Tukey tests Treated zirconia ceramic surfaces were examined using scanning electron microscopy. Data was collected and statistically analyzed. Monobond Plus group recorded higher<br />shear bond strength than Monobond S group. Monobond Plus primer improved bonding to zirconia ceramic while the cleaning method had little or no effect. Al-Azhar University, Faculty of Dental Medicine, Girls BranchAl-Azhar Dental Journal for Girls2537-03083420161001The Effect of Two Different Denture Base Materials on Retention of Complete Denture in Severely Resorbed Lower Ridge Cases287292518210.21608/adjg.2016.5182ENEmanEbrahimDentist at Medical Affairs for Girls, Al Azhar University.AmanyAbdel-FattahProfessor of Removable Prosthodontics, Vice Dean of Faculty of Dental Medicine for Girls, Al-Azhar University.ShereenKabeeLecturer of Removable Prosthodontics, Faculty of Dental Medicine for Girls, Al Azhar University.Journal Article20180201Aim of the study: to compare between two different denture base materials regarding their effect on the retention of complete dentures in patients with severely resorbed lower edentulous ridges. Material &methods: seven completely edentulous patients with age ranged between 55 and 65 years were selected for this study; each patient received three types of lower dentures to use it for four months, in addition to one week in between as a washing period before wearing the new one. Denture bases classified into three groups, heat cured acrylic resin denture base (Group I), heat cured acrylic resin denture base where the lower denture was lined by soft liner material (Group II) and a combination base of heat cured acrylic resin and Co-Cr denture base (Group III). Retention was evaluated after one month and three months from dentures delivery. Results: the results of this study revealed that a significant differences between group I,<br />group II and group III denture bases during the follow up study period after one month, and non-significant differences between group I, group II and group III denture bases during the follow up study period after three months. Conclusion: from this study it is concluded that the Co-Cr denture base and Conventional heat cure acrylic resin denture<br />base lined with soft liner material could be used as alternative treatment modalities to conventional heat cure acrylic resin denture bases in complete edentulous cases suffering from severely resorbed lower ridges.Al-Azhar University, Faculty of Dental Medicine, Girls BranchAl-Azhar Dental Journal for Girls2537-03083420161001Root Resorption Investigated With Con Beam Computed Tomography End of Orthodontic Treatment With Fixed Appliance293298518310.21608/adjg.2016.5183ENYasserThabetAssociate Professor in Orthodontics Department, Faculty of Dentistry, Ibb University .AbumadyanAqrabeAssociate Professor in Orthodontics Department, Faculty of Dentistry, Ibb University .RedwanAlaslmyAssociate Professor in Restorative Department, Faculty of Dentistry, Sana’a University.MohamedMohamedProfessor in Removable Prosthodontics Department, Faculty of Dentistry, Gazan University.Journal Article20180201Objective: To examine the prevalence of orthodontically induced root resorption after treatment and the correlation with resorption found after 7 months of treatment. Materials and Methods: One hundred forty patients (12–19 years) treated with fixed appliancesand extraction of four premolars were examined with con beam computed tomography before treatment, after 7 months of treatment (n=87), and at the end of active treatment. The MalmgrenIndex was used to describe the degree of root resorption. Results: Resorption root severe (>2 mm, score 3) was found in 30% of the patients at the end oftreatment. Extreme root resorption was found in two patients. Root resorption was seen morefrequently in the maxillary incisor region. There was no correlation between the severities of rootresorption after 7 months and the amount observed at the end of treatment. Conclusions:It was diagnosed significant resorpationin clinical in 30% of the patients, but nocorrelation with the resorption seen after 7 months was found.<br />Radiographic examination after 7months of orthodontic treatment willnot reduce the number of patients who will have teeth with severe root resorption. Al-Azhar University, Faculty of Dental Medicine, Girls BranchAl-Azhar Dental Journal for Girls2537-03083420161001The Diagnosis of Neuromuscular in Orthodontics Effects of TENS on The Antero-Posterior Maxilla-Mandibular Relationship299307518410.21608/adjg.2016.5184ENYasserThabetAssociate Professor in Orthodontics Department, Faculty of Dentistry, Ibb UniversityAbumadyanAqrabeAssociate Professor in Orthodontics Department, Faculty of Dentistry, Ibb UniversityRedwanAlaslmyAssociate Professor in Restorative Department, Faculty of Dentistry, Sana’a University.MohamedMohamedProfessor in Removable Prosthodontics Department, Faculty of Dentistry, Gazan University.Journal Article20180201Objective:This study was conducted in order to assess the changes in the occlusal position of the mandible after ULF (Ultra Low Frequency)- TENS relaxing procedure in subjects in pubertal growth phase with diagnosed Angle Class II division I and mandibular dentoalveolar retrusion. Materials and methods: This study was performed on 70 patients (48 females,22 males) with an Angle Class II division I, aged between 10 and 15 years old (mean age 12.26, SD 1.32) characterized by mandible dentoalveolar retrusion and optimal vertical facial dimension, diagnosed by clinical<br />and cephalometric evaluation. Diagnostic neuromuscular registrations were made for all subjects. The casts were mounted on articulator in habitual intercuspal position with a tooth-guided wax bite registration. Reference points were chosen at molar level. Subsequently the same casts were mounted in myocentric position and compared to the habitual intercuspal position, assessing the antero-posterior shift after TENS procedure. Statistics: Mean and standard deviation were calculated on the amount of shifting at the left molar reference point after TENS procedure. Analysis of variance was carried out in order to evaluate the influence of sex and age on the amount of molar shift.<br />Results: Nine subjects showed, in the antero-posterior plane, a forward mandibular shift in neuromuscular myocentric position compared to habitual intercuspal position. Six subjects showed no differences between habitual and myocentric position in the antero-posterio plane. Four individuals showed a backward mandible shift after TENS indicating worsening of the II molar in the antero-posterior plane. Conclusion: This study suggests that TENS recorded occlusion in subjects with Class II division I with mandible dentoalveolar retrusion allows to visualize an unusual trend of growth.<br />The advancement of the mandible were not taken into account. These results could offer new diagnosis and prognosis methods for Class II malocclusions. Al-Azhar University, Faculty of Dental Medicine, Girls BranchAl-Azhar Dental Journal for Girls2537-03083420161001The Effect of Two Denture Base Materials on Microbial Colonization of Complete Dentures in Controlled Diabetic Patients309316518510.21608/adjg.2016.5185ENSammarMohamedDentist at Ministry of Health.MoustafaAbdel GanyProfessor of Removable Prosthodontics And Dean of Faculty of Dental Medicine For Girls, Al Azhar UniversityAmanyAbdel FattahProfessor of Removable Prosthodontics and Vice Dean of Faculty of Dental Medicine For Girls, Al Azhar University.DinaKholifAssistant Professor of Removable Prosthodontics, Faculty of Dental Medicine For Girls, Al Azhar University.Journal Article20180201Aim: To compare between conventional heat cured Acrylic resin and Flexible thermoplastic resin denture base materials on microbial colonization of complete dentures in Controlled Diabetic patients. Material & Methods: This study included thirty completely edentulous well controlled diabetic patients which were divided into two equal groups, fifteen patients received complete dentures made of conventional heat cured acrylic resin dentures while the other fifteen patients received upper complete denture made of flexible poly amide (Bre-flex 2ndedtion) thermoplastic dentures and lower heat cured acrylic resin denture. Oral swabs for isolation of microorganisms was done with gamma sterilized disposable swabs from tuberosity area under the fitting surface of the dentures, each swab cultivated in three culture media. Statistical analysis was performed for the results of this study to evaluate the microbial colonization in each of the two groups. Results: Candida was the most common isolate in acrylic resin group and was detected in 6 cases (40%) and Streptococci were observed in 3 cases (20%). Chi square test revealed a significant difference in the percentage of Candida species<br />were the most common isolate in breflex group and were detected in 3 cases (20%). Staph Aureus and Streptococci were observed in 2 cases each (13%). Chi square test revealed a significant difference in the percentage of cases affecting by each type of microorganisms (p<0.00001).cases affecting by each type of microorganisms by Cfu (ml)x102. Conclusion: Flexible thermoplastic resin denture is thus a more predictable treatment modality as a denture base material due to its less microbial colonization and biological reaction in addition to its better esthetic appearance.Al-Azhar University, Faculty of Dental Medicine, Girls BranchAl-Azhar Dental Journal for Girls2537-03083420161001The Effect of Demineralized Dentin Matrix Graft alone and Combined with Statin and Propolis on Bone Repair. (A Histological Study)317323518610.21608/adjg.2016.5186ENMenaAbd-AllahAssistant Lecturer of Oral and Dental Biology, Faculty of Dental Medicine for Girls, Al- Azhar University.MonaFaridProfessor and Head of Oral and Dental Biology Department, the Former Dean of Faculty of Dental Medicine for Girls, Al-
Azhar University.NahedKoranyProfessor of Oral Biology and Vice Dean of Faculty of Oral and Dental Medicine, Cairo UniversityHebaAdawyAssistant Professor of Oral and Dental Biology, Faculty of Dental Medicine for Girls, Al- Azhar University.Journal Article20180201Aim: The aim of the present study was to evaluate the effect of demineralized human dentin matrix graft alone and when combined with statin and propolis on bone repair in bone defects in the tibia of rabbits histologically. Materials and Methods Fifteen adult male rabbits (weight 2 to 2.5 kg) were used in this study. In each rabbit four holes were created (two in each tibia), one was left empty as control, the second was packed with DDM slices, the third was packed with DDM slices saturated with statin and the last one was packed with DDM mixed with propolis. The animals were sacrificed at 2, 4 and 6 weeks postoperatively and the bone specimens were processed for histological analysis. Results: There was a significant increase in the newly formed bone tissue in DHDM and DHDM/statin groups and the DHDM/statin group presented excellent organization of the formed bone. Conclusion: The DHDM was biocompatible with the bone repair and stimulated bone tissue formation. Addition of statin markedly accelerated the bone repair while propolis caused delay in the early stages of repair. Al-Azhar University, Faculty of Dental Medicine, Girls BranchAl-Azhar Dental Journal for Girls2537-03083420161001Conventional 2.0 mm Miniplates versus 3D Miniplate in Mandibular Fracture Fixation325330518710.21608/adjg.2016.5187ENMariamKamelMaster student, Faculty of Dental Medicine for Girls, Al-Azhar University (Girls’ branch).NahedAbd El MoniemLecturer of Oral&Maxillofacial Department, Faculty of Dental Medicine, Al-Azhar University (Girls’ branch).FahmyAbdel AalHassaneinProfessor of Oral&Maxillofacial Surgery, Faculty of Oral and Dental Medicine, Cairo University.SusanHassanChairman of Oral&Maxillofacial Surgery Department, Faculty of Dental Medicine,Al-Azhar University (Girls’ branch)Journal Article20180201The aim of the present study was to clinically and radiographically compare and evaluate the treatment outcomes using 3D miniplate versus conventional 2.0 mm miniplates in fractures fixation of the anterior mandible. The study enrolled 16 patients with a total of 18 fractures; suffering from anterior mandibular fractures (symphysis and/or parasymphysis) requiring open reduction and internal fixations through an intra-oral approach. Groups I patients were fixed using 3D titanium miniplates and screws. Group II patients were fixed using two 2.0 mm titanium miniplates and screws.<br />Postoperative primary clinical treatment outcome points for comparative evaluation for all patients were fracture stability, the need for additional IMF, the need for minor occlusal adjustments and satisfactory occlusion. Secondary assessment points were infection, wound dehiscence and neurosensory deficit. Radiographic evaluation postoperatively was in terms of reduction adequacy, bone union and condylar positional change measurement. With respect to all the evaluated parameters, statistical analysis showed no statistically significant difference between the two groups in terms<br />of clinical and radiographic treatment outcomes.