Dentistry Commons^™

Evaluation Of Pain After Third Molar Extraction Surgery Using Hyaluronic Acid Versus Ozone Gel As Socket Preservatives, Heba Yahya Kandeel, Mohammed Abdel-Monem Tawfik, Farid Abd-Elreheim Badria, Eman Abdelsalam Yossef

Mansoura Journal of Dentistry

Objectives: This study aimed to evaluate pain following surgical extraction of the impacted mandibular third molar with inward fragmentation technique in combination with the use of ozone gel versus hyaluronic acid for socket preservation.

Patients and methods: This study involved 45 patients who were randomly divided into three equal groups after extraction of their impacted mandibular third molars, as follows: group I: ozone gel was placed in the socket, group II: hyaluronic acid gel was placed in the socket, while in group III (control group): normal healing was allowed without placing any material in the socket. All patients were assessed …

Application Of Mcnamara Analysis To Evaluate The Skeletal And Dentoalveolar Effects Of The Hybrid Aesthetic Functional Appliance On Class Ii Division 1 Malocclusion, Sohaila Adnan Ahmed Zehairy, Mohammad Hasan Abdellatief, Ahmed Maher Fouda

Mansoura Journal of Dentistry

Objective: This study aimed to assess the skeletal and dento-alveolar changes associated with using the new hybrid aesthetic functional appliance in the correction of class II division 1 malocclusion. Materials and Methods: Sixteen patients aged (8-12y) who had skeletal class II division 1 caused by mandibular deficiency were chosen and treated with the hybrid aesthetic function appliance. Before and after treatment, lateral cephalometric radiographs, photographs and study casts were taken. The duration of treatment was about 9-12 months. Results: The hybrid aesthetic functional appliance improved the mandibular forward position (P = 0.005) and increased the mandibular effective length (P = …

Effect Of Different Caries Removal Methods On Microtensile Bond Strength Of Universal Adhesive-Affected Dentin Interface, Amira Yahia Ghonim, Huda Abed El-Haliem, Mohamed Samir Elnawawy, Ashraf Ibrahim Ali

Mansoura Journal of Dentistry

Abstract

Objectives: To investigate the effect of three caries removal methods; air abrasion, papain gel, carbide bur, and water storage on microtensile bond strength of universal adhesives to affected dentin.

Materials and methods: Two universal adhesives; glycero-phosphate dimethacrylate (GPDM) containing OptiBond universal (Kerr Medical, USA) and 10-Methacryloyloxydecyl dihydrogen phosphate (10-MDP) containing Prime&Bond universal (Dentsply Sirona, USA) were used in this study according to their manufacturers' instructions. Forty-eight carious human molars were mounted into acrylic blocks then the coronal enamel and dentin were removed exposing a flat surface of affected dentin. Teeth were divided into two groups (n=24) according to the …

Evaluation Of Extrusion Arch In Management Of Anterior Open Bite In Mixed Dentition Patients, Mai Ebrahem Abdelmonem, Nehal Fouad Albelasy, Yasser Lotfy Abdelnaby, Maher Abd El Salam Fouda

Mansoura Journal of Dentistry

Objectives: To evaluate the dentoalveolar and skeletal changes of anterior open bite (AOB) treatment using extrusion arch in the mixed dentition.

Materials and methods: The study included 12 patients (7 females and 5 males) in the mixed dentition stage with an age range from 8 to 11 years with dentoalveolar anterior open bite ≤ 0 mm with normal facial pattern SN-GoGn (31.54°) and insufficient incisor display. After leveling & alignment for the upper incisors, a sectional heavy wire of 0.017 x 0.025'' stainless steel was kept in the upper incisors' brackets. The extrusion arch was placed as an auxiliary arch …

Bond Strength Of Zirconia Ceramics To Dentin Using Two Resin Cements: Influence Of Dentin Conditioning, Ahmed Mohamed Abd El-Khbeer, Ahmed Attia Abo El-Naga, Sayed Mohamed Ghorab

Mansoura Journal of Dentistry

Objective: To assess the impact of different dentin conditioning methods and two resin cements on the bond strength of zirconia ceramics to dentin.

Materials and Methods: A total of 64 zirconia discs fabricated using CAD/CAM technology of dimensions (8mm diameter ×3mm thickness) and 64 molars mounted in plastic rings with acrylic resin were prepared by exposing flat coronal dentin surfaces. They were divided into 4 main groups (n=16) according to dentin surface treatment; Dentin as cut, treated with EDTA, Polyacrylic Acid (PAA), and self-etch adhesive. Each main group was subdivided into 2 subgroups (n=8) according to the luting cement used: …

Clasp Retained Versus Attachment Retained Removable Partial Dentures For Treatment Of Mandibular Distal Extension Cases: Patient Satisfaction And Oral Health-Related Quality Of Life, Nermeen Elsayed Khalil El-Khamisy

Mansoura Journal of Dentistry

Objective: This study was carried out to assess patient satisfaction by visual analogue scale (VAS) and oral health-related quality of life (OHRQL) for digitally constructed clasp-retained and attachment-retained removable partial dentures (ARRPDs) in a mandibular class I partially edentulous cases Materials and methods: In this clinical trial,18 patients were equally divided into 2groups, they received mandibular class I computer-aided design/computer-aided manufacturing (CAD/CAM) constructed RPDs, patients were received RPDs retained with RPA clasp system (Group 1) for 6 months and the other patients were received RPDs retained with extra-coronal attachment (ARRPDs)) with cantilever for 6 months (Group 2). After receiving and …

Micro-Tensile Bond Strength Of Three Different Dual Cure Resin Composites Bonded To Dentin, Atya A. Alzarouq, Rabab Mehesen, Ashraf I. Ali

Mansoura Journal of Dentistry

Objective: To evaluate the micro-tensile bond strength (μTBS) and micro-morphological analysis of composite dentin interface of dual-cure resin composites bonded to dentin. Materials and Methods: For the micro-tensile bond strength test, sixty sound human maxillary and mandibular molars were collected. After embedding the selected molars in an acrylic resin block, the occlusal enamel and superficial dentin of each tooth were removed, exposing the mid-dentin area. They were assigned randomly into three groups (n=20) according to the restorative system. Then both groups were further divided into two subgroups; subgroup 1 for immediately tested specimens after 24 h (n=10), and subgroup 2 …

Evaluation Of Microtensile Bond Strength, Microleakage Pattern And Micromorphological Analysis Of New Functional Monomer-Based Universal Adhesive Tooth Interface, Hussain R. Khaled, Hamdi H. Hammama, Salah H. Mahmoud

Mansoura Journal of Dentistry

Objective: This study was intended to evaluate the micro tensile bond strength (μTBS), micro leakage pattern, and micro morphological analysis of new 10-MDP-based universal adhesive/tooth interface and compare it with other two 10-MDP-based adhesive systems before and after storage. Materials and Methods: Two Universal adhesives (Single Bond Universal Adhesive and Ambar Universal) and one all-in-one adhesive (CLEARFIL S3BOND) were used. A total of 102 permanent human molars were used in this study. The teeth were randomly divided into three groups (n=34) according to the type of used adhesive; Ambar Universal (AU), CLEARFIL S3BOND (CTS), and Single Bond Universal (SBU). Each …

Anti-Dysplastic Effect Of Nettle Extract And Its Nano-Formulation On 7,12-Dimethylbenz[A]Anthracene Induced Hamster Buccal Pouch Carcinogenesis, Samah K. Ezzat, Amira M. Elsherbini

Mansoura Journal of Dentistry

Objective: Oral squamous cell carcinoma (OSCC) is the most common malignancy in the oral cavity with no definitive cure. In this study, chitosan loaded with nettle was used for the treatment of 7,12-Dimethylbenz[a] anthracene (DMBA)-induced oral squamous cell carcinoma compared to regular chemotherapy with 5-Fluorouracil (5-FU).Material and methods: Sixty pathogen-free male Syrian golden hamsters were used. The control group served as a negative control with no intervention, while the remaining animals received DMBA for 16 weeks then they were divided equally into 5 groups as follows; DMBA group received no treatment, while the 5-FU group was treated with 15mg/kg of …

Immunohistochemical Assessment Of Angiogenesis And Cell Proliferation In Aggressive Versus Non-Aggressive Central Giant Cell Granuloma., Mena F. Mesiha, Mahmoud F. El Sherbeny, Sherif Y. El Nagdy

Mansoura Journal of Dentistry

Objective: The current study investigated the expression of MCM3 and CD31 in aggressive versus non-aggressive central giant cell granuloma (CGCG ) Materials and methods: Thirty-three paraffin blocks for CGCG cases were collected from Oral Pathology Departments, Faculty of Dentistry, Mansoura, and Alexandria Universities. The Immunohistochemical staining for CD31 and MCM 3 was performed, assessed, and scored. Results: Mean age of the studied cases was 35.6±9.1 years. The lesions that occurred in the mandible represented the majority of cases [27 cases (81.8%)]. The study revealed an association between aggressiveness and the presence of large swelling, pain, cortical perforation, root resorption, and …

Stem Cell Marker As A Factor For The Different Biological Behavior Of Ameloblastoma And Odontogenic Keratocyst, Hanan M. Sayed Ahmed, Doaa A. Esmaeil, Sherif Y. Elnagdy

Mansoura Journal of Dentistry

Objective: To investigate the immunohistochemical expression of SOX2 among the studied cases of ameloblastoma and odontogenic keratocyst in order to show if it correlates to the biological behavior of those odontogenic lesions. Materials and Methods: The study was carried out on 30 histo-pathologically confirmed cases of (15 ameloblastomas and 15 odontogenic keratocysts). These blocks were collected from archived files of the Department of Oral Pathology, Faculty of Dentistry, Mansoura University. Sections were subjected to Immunohistochemical staining by SOX2 according to a standard protocol. Results: OKCs showed higher expression of SOX2 than Ab in all epithelial layers not confined to the …

Clinicopathological Study Of Oral Plasma Cell Granuloma, Aya M. El-Bastawesi, Mona M. Ibrahim, Nadia A. El-Sissy

Mansoura Journal of Dentistry

Objective: To identify the characteristic clinical and Histopathologic features encountered in the oral lesions of PCG and thus, clarifying the variability nature of the studied oral plasma cell granulomas (OPCGS). Materials and Methods a sample of 25 retrospective paraffin blocks of the OPCGS were thoroughly investigated histopathologically. Results: the studied OPCG was mainly represented as a gingival swelling, there was a female tendency in most of the studied OPCGS (92%), ranging from 11-73 years with a mean of 42.40. the majority of the current OPCG (64%) did not express any bone changes. the OPCGS of the present work were characterized …

Immunohistochemical Expression Of Ezh2 In Mucoepidermoid Carcinoma Of Salivary Glands, Amira A. Mansour, Mona M. Ibrahim, Ahmed E. Ahmed, Azza A. El Sissi

Mansoura Journal of Dentistry

Objective: To disclose the variation in EZH2 expression among the different grades of MEC and to analyze the marker's immunohistochemical (IHC) expression in relation to the clinicopathologic data of all cases. Material and methods: The present study was conducted on 15 blocks diagnosed as MEC including equal numbers of different grades. These blocks were selected from the archives of the Oncology Center, Mansoura University. The specimens embedded in the retrieved paraffin blocks were all fixed in 10% formalin. Sections of 4 microns’ thickness intervals were serially cut and prepared for the EZH2 staining. Chi-square, Monte Carlo, and Fisher Exact tests …

Effect Of Food Simulating Solvents On Surface Roughness And Microhardness Of Bulk Fill Resin Composites., Hadeer M. Hal, Ashraf I. Ali, Noha A. El-Wassefy, Marmar A. Montaser

Mansoura Journal of Dentistry

Objectives: To evaluate the effect of food simulating solvents on surface roughness and microhardness of bulk fill resin composites in-vitro. Materials and methods: A total of 180 discs were made with (Filtek One bulk fill, REVEAL HD and x-tra fil bulk fill (n=60). The baseline data of surface roughness and microhardness measurements were recorded. Each group was divided into three subgroups, subgroup1 was immersed into methyl ethyl ketone (n=20), subgroup2 was immersed into ethanol (n=20) and, subgroup3 was immersed into artificial saliva (n=20) as control group. After 30 days, half of each subgroup was tested for surface roughness (n=10) by …

Mdpb-Containing Self-Etch Dental Adhesive: Antibacterial Activity And Effect Of Different Dentinal Surface Preparation, Sally N. Zaki, Ragy N. Saad, Hamdi H. Hamdan, Salah H. Mahmoud

Mansoura Journal of Dentistry

Objective: To evaluate the effect of MDBP-containing self-etch (SE) adhesive and different dentin surface pretreatments on antibacterial activity Materials and Methods: A total of forty disc shaped specimens fabricated (8 mm in diameter and 1.5 mm thickness) were divided into four main groups according to type of the surface treatment method; deionized water(control), CHX, Papin enzyme and Riboflavin. Each group was sub-divided into 2subgroups (n=5) according to the type of adhesive: classic or MDPB containing SE adhesives. Bonded specimens were stored in deionized water for 24 hr. (n=6). The plates contained dices shaped specimen was incubated at 37o C for …

Comparing Shaping Ability Of Fanta, Onecurve, And Protaper Next Ni-Ti Rotary Files Systems., Soliman N. Mansour, Maram Obeid, Tariq Yehia

Mansoura Journal of Dentistry

Objective: To compare the shaping ability of Fanta, One Curve, and Pro Taper Next Ni-Ti rotary file systems. Materials and Methods: Sixty Mandibular molars with mesiobuccal canals with curvatures ranging between 20° and 40° were divided into three groups of 20 teeth each. a group for each system as follows: group 1 was prepared by Fanta file system, group 2 was prepared by Pro Taper Next file system, and group 3 was prepared by One Curve file system. The measuring of canal curvatures was determined by Schneider's method using standardized periapical radiographs and the Image J software. Pre and post-CBCT …

Comparative Study Of Protrusive Record Accuracy With And Without George Gauge For Dentulous Cases, Aisha Z. Mostafa, Noha H. El-Shaheed

Mansoura Journal of Dentistry

Objective: This study aimed to evaluate the accuracy of the George gauge in protrusive records. Materials and Methods: This clinical trial includes a total of 12 dentulous subjects aged 20 to 40 years with no signs of muscular disease or temporomandibular joint disorders were chosen. For each patient, two different protrusive records were created, one with and one without the George gauge, using polyvinyl siloxane materials. The accuracy of these two protrusive records was evaluated by measuring the amount of midline shift in both records with a digital calliper. Then these Protrusive records were used to programme the articulator and …

Soft Metal Versus Laser Melting Metal Framework Used For Mandibular All On Four Implant Supported Fixed Complete Denture, Noha H. Rashed, Noha H. El Shaheed, Wael M. Said Ahmed, Salah A. Hegazy

Mansoura Journal of Dentistry

Objective: To radiographically evaluate the peri-implant bone height changes eri-implantin mandibular all on-four implant supported fixed complete denture (ISFCD) regarding metal framework fabrication technique either with milling from soft metal block or additive manufacturing using laser melting. Materials and Methods: Ten completely edentulous patients were rehabilitated with mandibular all on-four ISFCD. Computer-guided surgical procedures were followed for placement of implants. Patients were allocated randomly into two groups according to the framework fabrication technique. Group I frameworks were milled from soft metal block and group II frameworks were fabricated with additive manufacturing using laser melting. Vertical bone height changes around supporting …

Impact Of Resin Composite Restorative Material Pre-Heating On Dental Pulp Temperature: A Laboratory Study, Asmaa S. El-Saeed, Fatma A. Elerian, Hamdi H. Hamama, Salah H. Mahmoud

Mansoura Journal of Dentistry

Objective: To investigate and compare the impact of pre-heating of an ormocer-based and a methacrylate-based restorative materials at different temperature on intra-pulpal temperature with that at room temperature. Materials and Methods: In the current study, two bulk-fill composite systems; one ormocer-based, and one methacrylate-based were used according to their manufacturer instructions. A total of 30 sound maxillary human molars was selected, and prepared by removal of occlusal enamel and part of dentin till remaining dentin thickness becomes 2 mm above highest pulp horn. The specimens were assigned equally into two halves, according to type restorative material used (n=15 for each). …

Comparison Between The Effect Of Bisphosphonates And Concentrated Growth Factors On Bone Healing Experimental Study, Mohammed A. Naji, Rana M. Nagah, Fakhreldin H. Abdel-Rahman, Hamdy A. Marzook

Mansoura Journal of Dentistry

Objective: Objectives: The aim of study was to compare the histological effect of Bisphosphonates (BPH) and Concentrated growth factors (CGFs) in bone defect healing. Materials and Methods: This experimental trial was conducted on 8 adults healthy New Zealand male rabbits weighing (2–3kgs). The rabbits are grouped as following: 4 rabbits in the CGF group and 4 rabbits in the BPH group and then sub-grouped according to sacrification time into 2 and 4 weeks in each rabbit. Two circular bone defects were created in the tibia (so every group have 8 defect). After that, each rabbit was treated by either BPH …

Evaluation Of The Effects Of The Incisal Capping Twin Block On The Flaring Of The Lower Incisors In The Treatment Of Skeletal Class Ii Malocclusion, Asmaa A. Elabd, Marwa A. Tawfik, Ahmed M. Hafez

Mansoura Journal of Dentistry

Objective: The purpose of this research was to evaluate the effect of the incisal capped Twin Block on the proclination of the lower incisors in the treatment of skeletal class II malocclusion. Materials and Methods: Ten patients (age ranged from 9 to 14 y) with skeletal class II due to mandibular retrusion were selected and treated with the incisal capped Twin Block appliance. Overjet was more than 4 mm. Lateral cephalometric radiographs, photographs, and study casts were obtained before and after treatment. The collected data were analyzed using (SPSS) program for Windows (Standard version 26). The treatment duration was about …

Comparative Evaluation Of Shaping Ability And Cleaning Efficiency Of Three Different Nickel-Titanium Rotary Systems, Reham I. Zehairy, Manal F. Osman, Amro A. Abd El-Razik

Mansoura Journal of Dentistry

Objective: This study was conducted to compare the shaping ability and cleaning efficiency of Mtwo, ProTaper Next and HyFlex CM rotary systems. Materials and Methods: A total of 45 root canals with curvatures ranging between 20o and 40o were divided into three groups of 15 canals: Mtwo, ProTaper Next and HyFlex CM based on pre-instrumentation radiographs. Canals were prepared to an apical size of 30. Using pre- and post-instrumentation radiographs, canal straightening was determined with a computer image analysis program. Preparation time was also recorded. These data were analysed using one-way analysis of variance (ANOVA) and post hoc Tukey’s test, …

Accuracy Of Digital Models In Bolton Analysis For Angle Class I Malocclusion Group, Ibrahim M. Abd-Elgawad, Marwa S. Shamaa, Ahmed M. Fouda

Mansoura Journal of Dentistry

Objective: This study aimed to test the accuracy and reliability of measurements using digital models versus plaster models. Materials and Methods: Thirty patients were recruited in the study. Impressions were taken for all patients by alginate impression material and poured immediately using certain dental plaster with good dimensional accuracy and surface details reproduction. All casts were trimmed and polished for obtaining high quality study models. Bolton analysis was done by manual and digital techniques for all casts. Intra-operator reliability testing and Paired-samples t-tests was used to compare the measurements within groups. Results: There was an excellent intra-operator reliability for both …

Comparison Of Cyclic Fatigue Resistance Of Three Ni-Ti Rotary Files, Mohamed A. El-Dreny, Mohamed M. Ibrahim, Amany E. Badr

Mansoura Journal of Dentistry

Objective: To compare the cyclic fatigue resistance of three Ni-Ti rotary files. Materials and Methods: A number of forty-five different nickel titanium rotary instruments (n = 15) were used in this study. All files were used according to their manufacturers' instructions. A specially designed, custom-made cyclic fatigue testing device was used in this study. The device had a simulated curved root canal within a stainless-steel block with a 45° angle of curvature and 5 mm radius of curvature. The time to fracture (TtF) in seconds was recorded visually using stopwatch. To characterize fracture mode, fractured fragments from each group were …

Effect Of Over-The-Counter Whitening Products On Enamel Color Change And Surface Roughness - A Laboratory Study, Estbrq A. Mousa, Radwa I. El-Toukhy, Ashraf I. Ali

Mansoura Journal of Dentistry

Objective: To evaluate the effect of various over-the-counter whitening products on enamel color change and surface roughness. Materials and Methods: Ninety bovine teeth were collected and sectioned at the cementoenamel junction. Fifty teeth were selected and stained for color change test. They were randomly divided into five groups according to the whitening product applied (n= 10). Color measurements were carried out with a spectrophotometer. The remaining Forty teeth were used for surface roughness test, where they were randomly divided into four groups n=10. Surface roughness was evaluated with optical profilometer. Results: The color change (Δ��) was significantly greater in the …

Antimicrobial Efficacy Of Different Root Canal Irrigants In Primary Teeth: Clinical Study, Nada H. Elmenbawy, Ahmed H. Wahba, Doaa Masallat, Salwa Awad

Mansoura Journal of Dentistry

Objective: Evaluation of antibacterial efficacy of 2.5% Sodium Hypochlorite (NaOCl), 3.8% Silver Diamine Fluoride (SDF), and 25% water-soluble extract of Propolis as root canal irrigants in primary molars. Materials and Methods: Thirty primary molars with a necrotic pulp of children in the age group 4-7 years were selected and divided into 3 groups randomly based on the irrigating solution used. In group A, 2.5% NaOCl was used as a positive control group. In groups B and C, 3.8% SDF and 25% water-soluble extract of Propolis were used respectively. The bacterial samples were collected pre-and post-irrigation using paper points and transferred …

The Expression Of Bmi-1 In Ameloblastoma And Dentigerous Cyst, Omnia S. Mohamed, Azza A. Elsissi, Osama A. Elkashty

Mansoura Journal of Dentistry

Objective: To check for a possible relation between the expression of BMI-1 among two different odontogenic lesions; ameloblastoma and dentigerous cyst known for different biological behavior. Materials and Methods: The study was conducted on 14 formalin-fixed paraffin-embedded blocks (ameloblastoma (Am) group: seven blocks and dentigerous cyst (DC) group: seven blocks). These blocks were collected from archived files of the Department of Oral Pathology, Faculty of Dentistry, Mansoura University. Immunohistochemically (IHC), the BMI-1 polyclonal antibody expression in the retrieved sections was investigated. A computerized method was used to compare the IHC staining intensity between both groups. Results: The difference in the …

Awareness Of Evidence Based Recommendations On Toothbrush Bristles Design And Texture Among Dentists, Nasr M. Attia, Ahmed Mahmoud Etman

Mansoura Journal of Dentistry

Objective: Dental plaque is a necessary etiologic factor in the onset and progression of dental caries and periodontal disorders. Numerous individual and material-based factors have an impact on dental plaque control. In light of the most recent evidence-based guidelines, this study's purpose is to determine the best toothbrush bristles surface plane design (flat; multilevel; angled), texture (soft; medium; hard) and to estimate how many dentists are aware of that too. Materials and Methods: This is a one-question survey directed on social media platforms of dentists' groups: - “Is it preferable to use a toothbrush with soft or medium bristles, and …

Effect Of Different Surface Treatments And Repair Materials On Shear Bond Strength Of Bulk-Fill Resin Composite, Alyaa A. Soliman, Rabab Mehesen, Ashraf I. Ali

Mansoura Journal of Dentistry

Objective: To evaluate the effect of different surface treatments on shear bond strength (SBS) between bulk-fill resin composite (BFRC) and bulk-fill flowable resin composite (BFFRC) or conventional flowable resin composite (CFRC). Materials and Methods: Sixteen blocks were prepared from Tetric N-Ceram BFRC, aged by thermo-cycling, and then stored in artificial saliva for 6 months. The blocks were divided into 4 groups (n=4) according to the surface treatment; Group1: roughened by coarse discs, Group 2: roughened by coarse discs and silanization, Group 3: roughened by air abrasion, and Group 4: roughened by air abrasion and silanization. Each group was subdivided into …

Effect Of Finishing/Polishing Techniques On Surface Roughness Of Three Different Resin Composite Materials: A Laboratory Study, Adham A. Khairy, Radwa I. El-Toukhy, Nadia Zaghlol

Mansoura Journal of Dentistry

Objective: To determine the changes in surface roughness of different resin based composite materials having spherical shaped fillers after finishing and polishing with different systems and various application steps either one, two or three-steps. Materials and Methods: A total of 120 disc-shaped specimens (10 mm diameter × 2 mm thickness) were prepared from three different RBC materials (n=40 discs/group): a Nano-fill resin composite (Omnichroma); a Nano-ceramic resin composite (Neo Spectra ST) and a Nano-hybrid resin composite (Charisma Topaz). Each group was subdivided into four subgroups (n=10) according to the finishing/polishing (F/P) system: control (without F/P), one-step system (Enhance); two-step system …