Dentistry Commons^™

Evaluation Of Clinical And Radiographic Outcomes Associated With Dental Implants Subjected To Different Loading Protocols, Ahmed Abdel-Halim Hegazy, Mohamed Zaghlool Amer, Wael Mohamed Ahmed, Mohamed Mahmoud Anees

Mansoura Journal of Dentistry

Objective: To evaluate the clinical and radiographic outcomes associated with dental implants subjected to different loading protocols in the posterior maxillary region.

Patients and methods: This clinical study included 16 implants placed in patients seeking the rehabilitation of single/multiple teeth in the posterior maxillary region. The patients were distributed randomly into three groups according to the loading protocol; the 1st group received four implants subjected to conventional loading protocol, the 2nd group received six implants subjected to early loading protocol, additionally the 3rd group received six implants subjected to immediate loading protocol. The evaluation was done immediately after crown cementation …

Micro-Hardness Of The Radicular Dentine After Root Canal Irrigation With Salvadora Persica Extract: A Laboratory Study, Moataz Tarek Hekal, Enas Tawfik Enan, Noha Abdelmawla Elwassefy, Ahmad Mostafa Hussein

Mansoura Journal of Dentistry

Objectives: To evaluate the effect of the conventionally used irrigant sodium hypochlorite (NaOCL) compared to prepared Salvadora persica (miswak) root canal irrigant regarding the microhardness of root dentin.

Materials and methods: Forty-five extracted single-rooted mandibular premolars human teeth with closed apex were included in this study. Initially, the teeth were cleaned, prepared, and then disinfected, which were divided randomly into five equal groups according to the type of irrigant used [Group (1): saline (-ve control), Group (2): 5.25% NaOCl (+ve control), Group (3): 10% Miswak, Group (4): 15% Miswak and Group (5): 20% Miswak]. The specimens were embedded in acrylic …

Impact Of Remineralization Potential Of Biphasic Calcium Phosphate Powders On Incipient Enamel Caries, Salwa Elmetwaly Abd Alaty Taha, Dina Sami Farahat, Tarek Abbas Ali Elkhooly, Manal Farouk Osman

Mansoura Journal of Dentistry

Objectives: To evaluate and compare the remineralizing effect of biphasic calcium phosphate (BCP) powder compared to nanohydroxyapatite (nano-HA) and beta-tricalcium phosphate (β-TCP) powders using laser fluorescence.

Materials and methods: Fifteen sound human premolars and molars were subjected to infection control measures. Then, the roots were removed and crowns were sectioned to provide blocks from the buccal and lingual surfaces. Each specimen underwent pH cycling to produce white spot lesions. The specimens were divided into three groups according to the treatment used. The total sample size for all groups was thirty specimens (10 specimens for each group). The change in mineral …

Physico-Chemical And Mechanical Properties Of Periodontal Barrier Membrane, Ayah Gamal Morsi, Ahmed Mostafa Hussein, Alaa Ali Omar, El-Sayed Gad Eid

Mansoura Journal of Dentistry

Objective: This study aimed to fabricate and characterize a novel periodontal barrier nanofibers-based bio-membrane using electrospinning.

Materials and Methods: The matrix solution was prepared from poly (vinyl alcohol) (PVA) incorporating hydroxyapatite, hyaluronic acid, collagen, L-arginine and vanillin to fabricate composite membrane. Subsequently the elemental analysis, viscosity, conductivity and surface tension of solutions before spinning were evaluated. The physicochemical and mechanical properties were characterized using UV-VIS spectroscopy, scan electron microscope (SEM), fourier transform infrared spectroscopy (FT-IR) and tensile strength. Data were expressed as mean and standard deviation (±SD). P values < 0.05 were considered significant.

Results: The results revealed that the composite solution surface tension …

Antibacterial Properties Of Silver Diamine Fluoride-Based Remineralizing Agents And Their Effects On The Chemical Structure Of Enamel, Inas K. Abdelrahim, Hamdi H.H. Hamama, Radwa Ibrahim El-Toukhy, Ragy N.S. Botros

Mansoura Journal of Dentistry

Objectives

To evaluate the antibacterial properties of silver diamine fluoride-based remineralizing agents and their effect on the chemical structure of enamel.

Materials and methods

Forty-two sound human mandibular molars were disinfected, coated with nail varnish, leaving a 4×4 mm window on the buccal surface, and dipped in EDTA solution at 37°C for 13 h. The molars were sectioned mesiodistally through the centre to obtain specimens with untreated and test-treated sides. Then, SDF and Riva Star treatment solutions were applied to the test-treated side. Teeth were equally divided according to the test (n=21) and then subdivided into control, SDF, and Riva …

Evaluation Of Microleakage Patterns, Micromorphological And Elemental Analysis Of Tooth/Restoration Interface Of Four Class V Self-Adhesive Resin Composite Restorations, Mohamed T. Gebril, Radwa Eltoukhy, Hamdi H. Hamdan, Cornelis Pameijer

Mansoura Journal of Dentistry

Objectives

To evaluate tooth/restoration interface of four class V self-adhesive resin composite restorations.

Materials and methods

Activa Presto (Pulpdent Corporation, Watertown, USA), Fusio Liquid Dentin (Pentron Wallingford, CT, USA Clinical Technologies), Vertise Flow (Orange, CA, USA Kerr corporation) and FitSA (Shofu dental corporation San Marcos, CA, USA ). All the materials were manipulated according to manufacturers’ instructions.

A total of 80 sound human premolars were collected from patients with an age range from 20 to 30 years. The extractions were due to orthodontic treatment or periodontal disease. The patients visited the clinic of the Department of Oral Surgery, Faculty of …

Clinical Evaluation Of Gingival Healing Following Gingivectomy With Application Of Human Placental Extracts (Placentrex Gel), Rana M. Al Ashmawy, Ayman A. Elkashty, Mohammed M. El Shennawi

Mansoura Journal of Dentistry

Objective

To evaluate the adjunctive application of human placental extracts (placentrex gel) on the healing of gingival tissue after gingivectomy.

Materials and methods

The present study was made on twenty patients who were suffering from gingival enlargement and seeking for gingivectomy procedures. Ten patients were treated with gingivectomy with application of placentrex gel after surgery for a month as study group. The other ten patients were treated with gingivectomy without the application of placentrex gel after surgery as control group. Different clinical periodontal parameters were recorded including the scores of Plaque index, Postoperative pain index, Wound-Healing index and Degree of …

Effect Of Different Bar Designs To Retain Implant Mandibular Overdentures On Alveolar Ridge Resorptio, Mohamed Shady Nabil, Ayman A. El Kashty, Heba Wageh Abozaed

Mansoura Journal of Dentistry

Objective: To evaluate and compare both anterior and posterior area indices of two different bar attachments bar-locator & bar-clip that are used to retain implant mandibular overdentures. Materials and methods: sixteen completely edentulous participants were eligible (mean age is 50 years old). Every participant received new maxillary and mandibular conventional dentures. After 3 months of adaptation, 2- dental implants were inserted in mandibular canine regions. All participants were randomly divided into 2- equal groups; eight patients received bar-locator attachment (group I) and eight patients received bar-clip attachment (group II). Anterior area index (AAI) and posterior area index (PAI) was performed …

Oral Health Status In Children With Nephrotic Syndrome, Heba Mohamed Deghid, Salwa Adel Hegazy, Nasr Mohamed Attia

Mansoura Journal of Dentistry

Objective: To assess the oral health status of a group of nephrotic syndrome children in Mansoura City.

Methods: This case-control study was conducted on 200 children aged 4-14 years old, who were divided into two equal groups. Children with Nephrotic Syndrome were selected from the Nephrology clinic at Mansoura Children’s Hospital as a case group. Matched healthy children were selected as a control group from governmental schools in Mansoura city. The oral health status of the studied groups was evaluated by using DMFT & deft indices, gingival index (GI), simplified oral hygiene index (OHI-S), and developmental enamel defects index (DDE). …

Comparison Between Conventional And 3d Printed Implant Retained Mandibular Complete Overdentures Regarding Occlusion Using Digital Occlusion Analysis System (A Pilot Study), Hazem M. M. Al-Sappagh, Mohamed S.N. Taha, Noha A. Mansour, Radwa M.K. Emera

Mansoura Journal of Dentistry

Purpose

This within-patient study aimed to compare two different construction techniques (conventional and 3D printing) of two implant-assisted complete mandibular overdenture regarding occlusion using a digital occlusion analysis system (Occlusense).

Methods

Six patients were selected for this study from the prosthetic department, Faculty of Dentistry, Mansoura University. All patients received mandibular implant-assisted overdentures with two fabrication techniques, conventional overdenture (group I) and 3D printed overdenture (group II). Ball and socket attachments were used to retain the mandibular overdentures to the underlying implant fixtures. Conventional and 3D printed mandibular overdentures were compared and evaluated after 3 months of overdenture use regarding …

Effect Of Different Beverages On Surface Roughness Of Resin Composite Restorations, Mohamed El-Ghobashy, Rabab Mehesen, Ashraf I. Ali

Mansoura Journal of Dentistry

Objective

To evaluate the effects of different beverages on the surface roughness of different resin composites.

Materials and methods

A total number of 80 discs (5´2 mm dimensions) were made from (Filtek One bulk fill, x-tra fil bulk fill, REVEAL HD, and Filtek Z350XT) and polished. Each group was divided into 4 subgroups, subgroup 1 was immersed in artificial saliva, subgroup 2 was immersed in beer, subgroup 3 was immersed in red bull, and subgroup 4 was immersed in grape juice (n=5). The specimens were immersed in a protocol of 15 min 3 times a day for 30 days. The …

Assessment Of Epithelial-Mesenchymal Transition And Tumor Stroma Ratio Via Vimentin Expression In Salivary Adenoid Cystic Carcinoma, Mona Mohsen Abdo Ibrahim

Mansoura Journal of Dentistry

Objectives: To assess the importance of epithelial-mesenchymal transition (EMT) and tumor-stroma ratio (TSR) as prognostic markers via immunohistochemical expression of vimentin in tumor cells and stroma of salivary adenoid cystic carcinoma (SAdCC).

Material and methods: This was a retrospective cohort study on 40 paraffin blocks of SAdCC. Immunohistochemical expression of vimentin was performed and analyzed in tumor cells and stroma. The mean area of expression was scored as the following: 1(weak =1-10%, moderate = 11-50%, and strong = 51-100 %). While expression in stroma was divided according to a 50% ratio as cut off point into, stroma-poor cases =high TSR …

Effect Of Water Storage On Repair Bond Strength Of Resin-Based Composite To Different Restorative Materials, Dina A. Omar, Huda Abed El-Haliem, Noha El-Wassefy, Salah H. Mahmoud

Mansoura Journal of Dentistry

Objective: To investigate the effect of water storage on repair bond strength (RBS) of resin composite to five restorative materials using either a silane and a bonding agent or a universal bond. Materials and Methods: Five materials which are amalgam, direct composite, indirect composite, hybrid ceramic, and feldspathic ceramic were used in this study. Twenty- eight cube-shaped specimens from each material were fabricated, all specimens were sandblasted (Al2O3; 50 µm) and then classified into two equal groups (n=14) according to the surface treatment method (total-etch bond and silane coupling agent or universal bond). Each group was further divided into 2 …

Direct Versus Indirect Pick Up Of The Locator Retentive Caps For Two Implant Supported Mandibular Over Denture: (A Cross Over Study), Christine Raouf Micheal Ibrahim, Amany Awad Elsayed Awad, Ahmed Ali Abdelrahman Habib

Mansoura Journal of Dentistry

Aim: This study aimed to compare and calibrate the clinical retention of direct versus indirect pick of locator attachment retentive caps used to retain mandibular overdentures connected to two implants installed in the canine regions. Material and Methods: Ten patients received two implants in the canine areas of the mandible. According to the pick-up technique of the retentive caps and the color of the retentive inserts of locator attachments; the mandibular overdentures were classified into four groups as follows: Group I: Overdentures with locator retentive caps and blue inserts were picked up by indirect method. Group II: Overdentures with locator …

Remineralization And Aesthetic Effect Of Three Agents On Artificial White Spot Lesions: An In Vitro Study, Hadeer Wael, Salwa Hegazy, Rasha Ibrahim

Mansoura Journal of Dentistry

Objective: To evaluate the remineralization potential of three different dentifrices. Materials and Methods: Premolars (n=80) were randomly allocated into four groups (n=20), Group A, Casein Phosphopeptide- Amorphous Calcium Phosphate; Group B, Nano Silver Fluoride; Group C Sodium fluoride; and Group D Artificial Saliva. Specimens were subjected to a pH cycling regime for 21 days. DIAGNOdent recorded the mineral profile, and Spectrophotometer evaluated the aesthetic effect. The data were analyzed using (ANOVA) and Turkey's post hoc multiple comparison tests at a significance level of p

Patient Satisfaction With Single Implant Mandibular Overdenture Retained With Locator Attachment, Mohammed A. Elmoslhy, Noha H. El-Shaheed, Aisha Z. H. Mostafa, Moustafa A. Elsyad

Mansoura Journal of Dentistry

Purpose: To compare patient satisfaction with single implant mandibular overdenture retained by locator attachment to conventional dentures.

Materials and methods: 8 participants with completely edentulous arches were included in this prospective clinical study. First, conventional complete dentures were constructed for all participants and then a mandibular single midline implant was surgically placed to retain mandibular overdenture (MOD). They received instructions regarding wearing the conventional dentures for three months before implant insertion, then the locator attachment pick-up was done and the participants were asked to wear the mandibular overdenture for the next 3 months. A visual analogue scale (VAS) was utilized …

Significance Of Kappa And Lambda Immunohistochemical Expression In The Diagnosis Of Oral Plasma Cell Granuloma, Aya M. El-Bastawesi, Mona Mohsen Abdo Ibrahim, Nadia A. El-Sissy

Mansoura Journal of Dentistry

Objectives: To determine the nature of plasma cell proliferation in oral plasma cell granuloma either to be polyclonal or monoclonal via immunohistochemical expression of kappa(k) and lambda(λ ) antibodies. This study would confirm the diagnosis of oral plasma cell granuloma and exclude other plasma cell neoplasms.

Material and methods: This study was performed retrospectively on 25 oral plasma cell granuloma cases. Immunohistochemical expression of kappa and lambda light chains was made and the mean percentage of expression was scored semi-quantitatively. The ratio of kappa to lambda mean expression was recorded.

Results: All current study cases revealed positive cytoplasmic expression of …

Masticatory Efficiency Assessment Of Two- Implant Assisted Mandibular Overdentures Of Cobalt Chromium Versus Peek Combined Denture Bases: (A Within-Subject Study), Sarah Ali Abd El Fattah Ghorab, Heba Wageh Abozaed, Eman Abdel Salam Yousef, Fatma Ahmad El-Waseef

Mansoura Journal of Dentistry

Objectives: To assess the masticatory efficiency of conventional complete denture CD and two-implant mandibular overdentures (TIMOs) reinforced with polyether-ether ketone (PEEK) or cobalt-chromium (CO-CR). Materials and Methods: Ten complete edentulous individuals received CD. Upon completion of three months, measurement of masticatory efficacy was conducted (T3). After that, for each participant, the placement of two implants was carried out in the canine mandibular areas. After three months of osseointegration, each patient was delivered two mandibular overdentures: one was reinforced by metal (group I), while the other was reinforced by PEEK (group II). The masticatory efficacy test was thereafter performed for both …

Evaluation Of Cleaning Efficacy Of Two Nickel- Titanium Rotary File Systems In Primary Molars; A Histological Study, Mohamed El Sayed Abo Farrag, Salwa Mohamed Awad, Ashraf Yassin Alhosainy

Mansoura Journal of Dentistry

Objective: To evaluate the cleaning efficacy of XP-endo Shaper, iRaCe, and stainless-steel K-file systems in primary molars.

Materials and Methods: Forty-five extracted maxillary second primary molars were divided into three groups according to the instrumentation technique used; Group (A): stainless-steel k-files, Group (B): XP-endo Shaper file, and Group (C): iRaCe files. Instruments were used according to the manufacturer’s instructions and 1% sodium hypochlorite (NaOCl) solution was used as the irrigant. The teeth were then prepared for histological processing. Several serial transverse sections were taken from the coronal, middle, and apical levels of the root, stained with hematoxylin-eosin, and examined under …

Do Different Cavity Preparation Designs Influence Fracture Resistance Of Cad/Cam Fabricated Ceramic Inlay And Onlay?, Nabil Ayad Saleem, Ali Atef Elkaffas, Ashraf Ibrahim Ali, Salah Hasab Mahmoud

Mansoura Journal of Dentistry

Objectives: This study evaluated the impact of various cavity preparation designs on fracture resistance of CAD/CAM ceramic inlays and onlays.

Materials and methods: Forty-eight teeth were randomly assigned to six groups (n=8): (group A) inlays with 75% width of the inter-cuspal distance (ICD, buccal cusp tip-to-palatal cusp tip), (group B) inlays with 100% width of the ICD, (Group C) onlays that had a palatal cusp reduction of 2.0 mm (functional cusp) and 75% width of ICD, (Group D) had a palatal cusp reduction of 2.0 mm (functional cusp) with 100% width of ICD,(Group E) had a palatal cusp reduction of …

Micro-Shear Bond Strength Of Bioactive Restorative Materials To Dentin And Analysis Of Interfaces: A Laboratory Study, Doha M. Zahran, Ali A. Elkaffas, Hamdi H. Hamama, Salah H. Mahmoud

Mansoura Journal of Dentistry

Objectives

The study aimed to assess and compare micro-shear bond strength (µSBS) to dentin, micromorphological and chemical changes of newly introduced bioactive restorative materials/dentin interfaces.

Materials and methods

Total of 56 molars were used in this study, for μSBS, 28 molars (n=28) were randomly assigned into 4 groups (n=7) according to the type of restorative material used: group A; Activa, Pulpdent, group B; Beautifil II LS, Shofu, group C; Cention N, Ivoclar Vivadent and group D; Surefil one, Dentsply Sirona. The other 28 molars (n=28) were tested for elemental analysis of restoration/tooth interface using EDX and micromorphological analysis under SEM, …

Comparison Between Jet Injector And Traditional Needle Syringe During Infiltration Anesthesia In Pediatric Patients, Heba O. Elbadry, Salwa M. Awad, Hossam E. Hammouda

Mansoura Journal of Dentistry

Objective

To evaluate the pain level during infiltration anesthesia with needle free jet injectors in pediatric patients.

Method

38 cooperative healthy child aged 4–7 years were selected to be anesthetized with both methods of injection, the needles jet injector and the conventional infiltration technique. The selected group was divided randomly into two groups of 19 child each, control group I (conventional needle) and study group II (jet injector). The pain levels were measured according to Wong-Baker Faces Pain (Rating) scale (WBFPS), to determine the level of acceptance of each method. The measuring of the pain level was done after administration …

Validity Of Tanaka-Johnston Analysis For Egyptians, Ibrahim M. Abd-Elgawad, Marwa S. Shamaa, Ahmed M. Fouda

Mansoura Journal of Dentistry

Objective

This study aimed to assess whether Tanaka-Johnston mixed dentition analysis using digital models is applicable to Egyptians.

Materials and methods

Ninety patients were included in this study with ages ranging from 12 to 25 years old. Impressions were taken from all patients using alginate impression material and casts were poured immediately using a dental plaster with quality dimensional accuracy and surface detail reproduction. The casts were trimmed and polished to obtain high-quality study models. Three-dimensional (3D) digital models were reconstructed using a laser scanner. Measurements of teeth widths by both manual and digital techniques were compared for intra-operator reliability …

Effect Of Different Surface Pretreatment Agents On Microtensile Bond Strength And Micromorphological Analysis Of Mdpb-Containing Self-Etch Adhesive/Dentin Interface, Lina N. Ahmed, Fardous F. El-Senduny, Hamdi H. Hamdan, Salah H. Mahmoud

Mansoura Journal of Dentistry

Objectives

To evaluate the effect of different surface pretreatment agents on µTBS and micromorphology of MDPB-containing adhesive/dentin interface.

Materials/methods

In all, 56 human molars were divided according to the used pretreatment material (chlorohexidine, riboflavin, papain, and untreated control group) and then divided according to the aging time (immediate: 24 h and delayed: after 6 months). Teeth were restored using the MDPB-containing bond followed by the resin composite. µTBS test was done followed by failure mode analysis. Another 16 molars following the previous study design were used to evaluate the micromorphology of restoration/tooth interface.

Results

Two-way ANOVA test showed that the …

Clinical And- Radiographic Evaluation Of Mineralised Plasmatic Matrix (Mpm) On Postextraction Socket Healing, Maha Y.Y. Al- Farag, Mohamed A.-M. Tawfik, Fakhreldin H. Abdel-Rahman

Mansoura Journal of Dentistry

Objective

To evaluate clinically and radiographically the post-extraction socket healing using MPM in combination with alloplast bone graft.

Patients and methods

24 patients required extraction of non-restorable maxillary anterior or premolar teeth and seeking future restoration of their extracted teeth either with implant- supported prosthesis or conventional prosthesis. They were divided equally and randomly into two groups, study group included twelve extraction sockets filled with MPM combined with alloplastic bone graft, and control group included twelve extraction sockets, left empty for spontaneous healing. All patients were evaluated clinically (post operative pain and soft tissue healing one week postoperatively, and radiographically …

Effect Of Manufacturing Techniques And Surface Treatment Of Custom-Made Polyetheretherketone Posts On The Shear Bond Strength To Resin Cement Versus Customized Fiber Posts, Manar H. Emara, Marwa M. Wahsh, Mostafa M. Nour

Mansoura Journal of Dentistry

Objective

To study the impact of two surface treatments (air abrasion and piranha solution), and different manufacturing techniques of Polyetheretherketone (PEEK) compared with Fiber Post as a controlled group on the shear bond strength of the endodontically treated teeth.

Methods

35 single-rooted maxillary incisors were divided into five groups of 7 each. The fiber post was silanated according to manufacture and then bonded with dual-cure resin cement. While PEEK posts were made using various fabrication methods (Computer-aided design/computer-aided manufacturing (CAD/CAM) and Press), and were exposed to two surface treatments (air abrasion and piranha solution).

Results

The study materials did not …

Comparison Of Centering Ability And Fatigue Resistance Of Three Nickel-Titanium Rotary Instruments: An In-Vitro Study, Yousra A. S. Moustafa, Medhat T. El Faramawy, Tariq Y. Abdelrahman

Mansoura Journal of Dentistry

Objective

To evaluate canal centering ability by using different irrigants and cyclic fatigue resistance.

Materials and methods

Sixty-three teeth were randomly classified into three main groups according to the type of files: group 1 (n=21) M-Pro Files. Group 2 (n=21) 2Shape files. Group 3 (n=21) ProTaper Universal files (PTU). Each group was subdivided into 3 subgroups according to the type of irrigation used (Saline, NaOCl, MTAD). A total of 42 rotary files (M-pro, 2Shape, PTU) were classified into 3 main groups. Each group (n=14), then each group was subdivided into 2 subgroups (n=7). Data were analyzed using Shapiro-Wilk test. Data …

Evaluation The Adhesive Remnant Index Of Two Different Adhesive Systems Using Two Different Curing Times, Mohammad Riad Al Salem, Nehal Fouad Albelasy, Essam Elsaeid Al-Wakeel, Yasser Lotfy Abdelnaby

Mansoura Journal of Dentistry

Objectives: To evaluate the adhesive remnant index (ARI) of orthodontic brackets bonded with two adhesive systems using two different light curing times.

Materials and methods: Fifty-six extracted premolars were divided into two groups (n= 28) depending on the type of adhesive system used; Total-Etch (TE) Transbond XT and Self-Etch (SE) Transbond Plus. Each group was subdivided into two subgroups (n= 14) based on the curing time; 20 seconds and 3 seconds. The ARI was evaluated in each subgroup. The significance level was set at P≤ 0.050.

Results: The ARI showed that there was a statistically significant difference in ARI between …

Two Different Treatment Options For Cad\Cam Constructed Mandibular Class I Rpds. Clinical And Radiographic Evaluation Of Abutment Teeth Tissue Health., Nermeen Elsayed El-Khamisy, Aisha Zakaria Hashem Mostafa

Mansoura Journal of Dentistry

Objective: This study was conducted to assess the abutment teeth for digitally constructed clasp-retained and attachment-retained removable partial dentures (RPD) in cases with a class I partially edentulous mandible. Material and methods: In this clinical trial, throughout six years, 10 patients each received two mandibular class I RPDs that were created using computer-aided design and computer-aided manufacturing (CAD-CAM) over six years. The first one was clasp retained RPD (Group1) for 3 years then extra-coronal attachment with cantilever retained RPD for an additional 3 years (Group 2). The abutment's clinical parameters (pocket depth, bleeding index, and plaque index) and alveolar bone …

Universal Versus Glass Ionomer –Based Adhesive: Effect On Shear Bond Strength And Micro-Morphological Analysis Of Resin Modified Glass Ionomer Restorative Material /Dentin Interface, Gehad Mohamed Kassem, Huda Abed El -Haliem Mohammed, Ashraf Ibrahim Ali

Mansoura Journal of Dentistry

Objectives: : To evaluate universal versus glass ionomer –based adhesive, effect on shear bond strength and micro-morphological analysis of resin modified glass ionomer restorative material /dentin interface.

Materials and methods: 120 sound human molars were selected for our study. Subsequently, teeth were prepared by removing the occlusal enamel and exposing mid dentin. The roots of teeth were fixed to the base of a tube filled with acrylic resin. Teeth were divided into two groups according to type of RMGI (n=60) and then each group was subdivided into three subgroups according to adhesive use (n=20). Cylindrical tubes were built by the …