Effect Of Different Implant Materials On Stresses Transmitted To Peri-Implant Areas Of Implant-Retained Mandibular Overdenture, Diaa Mohamed Zahran Future University In Egypt, Diaa.Zahran@Fue.Edu.Eg, Aya Fawzy Associate Professor Of Prosthodontics, Future University In Egypt, A.Mohamed@Fue.Edu.Eg, Salah Hegazy Professor Of Prosthodontics, Faculty Of Dentistry, Mansoura University, Salahhegazy2003@Yahoo.Com, Sara M. Shabaan Lecturer At Removable Prosthodontic Department, Faculty Of Oral And Dental Medicine , Badr University, Cairo, Egypt, Ahmed A.Elwahed Shaaban Associate Professor Of Prosthodontics, Future University In Egypt, Ahmed.Abdelwahed@Fue.Edu.Eg

Future Dental Journal

Aim this in vitro study was conducted to evaluate the effect of mechanical loading on different implant materials on supporting structures materials and methods: a total of three implant retained overdentures were used in this study, retained by two implants each (Titanium, polyetheretherketon and zirconia) were placed in epoxy resin casts at the canine area using a surgical guide. Soft liner material was used at the distal extension area to mimic the soft tissues. Two linear strain gauges were bonded buccal and lingual to each implant to measure the peri-implant strains during unilateral and bilateral loading. Results: during bilateral loading …

Effect Of Scan Body Design On The Accuracy Of The Implant Position In Implant Supported Prosthesis, Ahmed Safwat Elghazally ,Future University In Egypt, Ahmed.Elghazally@Fue.Edu.Eg, Bassem Mohsen Associate Professor Of Prosthodontics, Future University In Egypt, Bassem.Mohsen@Fue.Edu.Eg, Amr Hosny Professor Of Prosthodontics, Faculty Of Dentistry – Cairo University In Egypt, Amrelkhadem@Gmail.Com, Hussien G. Elcharkawi Professor Of Prosthodontics, Future University In Egypt, Hussen.Elsharkawi@Fue.Edu.Eg

Future Dental Journal

Background: Several treatment options are planned for completely edentulous patients rehabilitation which were developed to meet patients desires and requirements, starting from conventional complete denture till implant supported fixed full arch cases. Each technique has its own indication and limitations. Passive fit is an important factor for the long-term success of implant- prosthesis, which necessitate accurate transfer of the implant position. Recently, digital impressions have been introduced in dental implant treatment. By the use of scan body and different optical scanning methods, the position of scan bodies can be transferred to a virtual implant position within the dental arch. Material …

Accuracy And Trueness Of Exporting Computer Aided Designs Of 3-Unit Fixed Dental Prosthesis By 3 Cad Systems, Ezzat Abou-Alnaga, Ashraf Hussein, Ahmed Naguib, Shereen Ahmed Nossair

Future Dental Journal

Objectives: Computer-aided design (CAD) software programs offer the option to export 3D scans and designs across different CADCAM systems, commonly referred to as open CADCAM technology. However, there is insufficient evidence of whether this exporting procedure has an impact on the accuracy of digital designs.This study aimed to investigate the accuracy of exporting of computer aided designs (CAD) of three-unit fixed dental prosthesis using 3 CAD systems. Materials and Methods: Three CAD softwares (inLab 17™, CeraMill Mind™, Dental System 2017™) were used to generate designs of a three-unit fixed partial denture. The designs generated by each CAD software were exported …

Assessment Of The Effect Of Two Different Digital Fabrication Techniques On Marginal And Internal Fit Of Interim Fixed Dental Prothesis, Mohamed A. Shalaby, Mennatallah M. Wahba, Hisham I. Al-Ansari, Ahmed N. Mohamed

Future Dental Journal

Aim: The aim of that study was to evaluate the marginal and internal fit of a 3-unit, and 6-unit interim fixed dental prosthesis manufactured through milling and 3D printing technologies. Materials and Methods: Forty-eight interim fixed dental prostheses (FDP) were equally divided into two groups according to the fabrication technique. In group (MT), specimens were fabricated through milling technology while in group (PT), specimens were obtained by 3D printing. Each group was subdivided equally according to the FDP span length into 3-unit FDP (SFDP), and 6-unit FDP (LFDP). Marginal and internal fit were measured through the superimposition of the digital …

Digital Fabrication Of Attachment For Implant-Anchored Auricular Prosthesis (Case Report)., Hussein El Charkawi Proffesor

Future Dental Journal

Aim: This novel technique, has adopted digital technology to fabricate a customized precision attachment for a patient who has lost his attachment which anchor his implant retained auricular prosthesis. A scanner was used to acquire the ball abutment’ geometry of craniofacial implant in the mastoid area. CAD/CAM technology and special software was used to fabricate a customized small PEEK precision attachment that was no longer available in the market. This attachment was picked-up by an auricular prosthesis. The retention qualities of the auricular prosthesis with this attachment was satisfactory for both the patient and the dentist. This novel approach will …

Computer Guided Versus Conventional Maxillary Sinus Augmentation Using Allogenic Bone Blocks With Simultaneous Implant Placement In Severely Pneumatized Sinuses, Hisham G. Zulhemma Department Of Oral And Maxillofacial Surgery, Future University In Egypt, Egypt. 20172740@Fue.Edu.Eg, Waleed Ragab El-Beialy Professor Of Oral And Maxillofacial Surgery -Cairo University, Egypt. Wbeialy@Yahoo.Com, Ahmed Abd Elsamad Associate Professor Of Oral And Maxillofacial Radiology– Cairo University, Egypt. Abdalsamad_A@Yahoo.Com, Ahmed Abozekry Lecturer Of Oral And Maxillofacial Surgery –Future University In Egypt, Egypt. Ahmed.Kamal@Fue.Edu.Eg

Future Dental Journal

Background: Maxillary sinus lifting is a complex procedure with reported complications in the literature where the presence of sinus septa further complicates the procedure, they including membrane perforation, bleeding. Aim: The aim of this study is to decrease the incidence of membrane perforation which is the most common reported complication, and to determine whether the use of surgical guides could decrease the incidence of membrane perforation. Materials and methods: A total of 12 cases where blindly divided into 2 groups; Group (A) computer guided maxillary sinus lifting and Group (B) conventional sinus lifting, both groups received allogenic bone blocks for …

Evaluation Of Color Difference And Translucency Of Modified Peek Restorations Veneered With Different Veneering Materials Before And After Thermal Cycling, Mohamed Hamdy Abdulmaguied, Tarek Salah Morsi, Mennatallah M. Wahba, Hesham Katamish

Future Dental Journal

Objective: The aim of this study was to investigate the effect of different PEEK veneering materials, as well as thermocycling on the color difference (ΔE) and the translucency parameter (TP) of modified PEEK veneered restorations.

Materials and Methods: Thirty disc shaped specimens of veneered BioHPP (1.5 mm X 12 mm) were randomly divided into three groups (n=10) based on the type of the veneering material. Group (A): Discs veneered with CAD milled Lithium Disilicate, group (B): Discs veneered with pre-cured milled composite, and group (C): Discs veneered with conventional light cured composite. CIELab values were calculated for all specimens over …

Evaluation Of Colour Reproduction Of Cad/Cam Lithuim-Disilicate Veneers Of Different Thicknesses And Translucency, Sahar H. Fikry, Tarek Salah Morsi, Mennatallah M. Wahba, Amr El-Etreby

Future Dental Journal

Background: With the increasing patients’ demand for a perfect smile, the call for highly aesthetic and yet minimally invasive veneers has surmounted. Objective: The aim of this study was to evaluate the colour of CAD/CAM lithium disilicate veneers fabricated in different thicknesses and different translucencies of the lithium disilicate blocks. Materials and Methods: Forty discs of lithium disilicate glass-ceramic (IPS e.max CAD) of shade A1 of both high and low translucency (HT, LT) were tested for their colour reproduction. HT and low LT blocks were cut in the form of plates of dimensions (12 x 14 mm) and of different …

Effect Of Abutments Design On Wear Of Locator Attachments In Implant Retained Mandibular Overdenture., Mahmoud Saleh Fayed, Medhat Sameh Abdelaziz, Hossam I. Nassar

Future Dental Journal

Purpose: The aim of this study is to compare the effect of abutments design on wear behavior of Locator attachments in implant-retained mandibular overdenture. Materials and Methods: Two epoxy models representing an edentulous mandible were used, two implants were placed in each model. Twenty-four locator attachments were used (twelve in each study group). Cycles of Insertion and removal were performed using a universal testing machine resembling 3 years of clinical use, then each abutment was scanned by scanning electron microscope (SEM) before and after insertion and removal cycles. Data were compared qualitatively using a specialized computer software Results: There was …

Effect Of Various Sintering Protocols On The Translucency Of Highly Translucent Cubic Zirconia, Kerolos Salah Mehany, Ashraf Hussein Sherif, Shereen Ahmed Nossair, Mona Hossam El-Din Mandour

Future Dental Journal

Aim of the study: This study was carried out to evaluate the effect of various sintering protocols on the translucency of highly translucent cubic zirconia. Materials and methods: A total of forty discs of two types of zirconia ceramics were used in this study. The specimens were divided into two main groups according to the type of zirconia; Group 1 (n=20): Cubic zirconia (DD Cube X2 98color) and Group 2 (n=20): Tetragonal zirconia (BioZX2color). Each group was subdivided into two subgroups, where 10 discs were per subgroup according to the sintering protocol. Cubic and tetragonal zirconia blanks of dimensions (98 …

Management Of Post Covid 19 Mucormycosis With Osteomyelitis In The Maxilla, New Combined Consequences Of The Pandemic. (Case Report)., Hussein El Charkawi Proffesor, Omar A. El Sharkawy

Future Dental Journal

ABSTRACT:

Aim: This case report aims to demonstrate among health providers the importance of timely surgical and prosthetic management procedures of patients who suffered from the newly combined clinical entity of post COVID 19 mucormycosis and osteomyelitis of the palate. Materials and methods: Elaborate advanced diagnosis of the patients including CBCT, MRI, CT, Pathology examination, 3Ds printing reconstruction of the whole skull and digital design of reconstructive mesh that support the prosthesis were carried out. The patients undergone modified infrastructure maxillectomy and immediate prosthetic obturation of the palatal defect that was replaced later by a delayed obturator. Results: Surgical eradication …

Comparison Between Two Different Attachment Caps Used In Locator Attachments Of Implant Supported Overdentures (In-Vitro Study), Hossam Eldein Faisal Haridy, Hebatalla Mahmoud El Afandy, Mohammed Farouk Abdalla, Ahmed Mohammed Osama

Future Dental Journal

Purpose: To compare different retentive cap material used in LOCATOR attachments, namely the nylon retentive cap versus PEEK retentive caps, and measure the loss of retention over a period of two years, through 2880 cycles of insertion and removal. Materials and methods: Two implants 3.8mm x 10.5mm were inserted into a clear epoxy resin cast, through a surgical guide, with the implants being 23mm apart. Two LOCATOR attachments with 5 mm gingival height were screwed to the implants, custom made nylon caps were fabricated as an exact replica of the PEEK retentive caps, then two dentures were constructed …

Retention Loss Of Locator Attachment System Different Retention Caps For Two Implant Retained Mandibular Overdenture., Medhat Sameh Abdelaziz, Aya Fawzy, Rami Maher Ghali, Hossam I. Nassar

Future Dental Journal

Abstract

Purpose. The objective of this invitro study was to evaluate gradual loss of retention at different time intervals between four different colour coded retentive caps of locator R-TX attachment system through 3000 cycles resembling 3years of attachment usage.

Material and Methods. According to prosthetically driven implant placement, two implants were digitally planned and placed by 3D printed surgical stent in an epoxy model. Forty-eight mandibular complete dentures divided into four groups (12 dentures for each group) were constructed to compare Loss of retention between (12 pairs of locator R-TX each retention cap: zero retention, low retention, medium retention and …

Evaluation Of Strength Of Different Resin Materials Used In Overdenture, Mohamed Emam, Hesham E. Alam El Deen, Hamdy Abu El Fotoh, Ayman Fateen

Future Dental Journal

Introduction: Finding a suitable material that could be used to restore relatively small inter-arch spaces in which reasonable aesthetics as well as good functional strength could be achieved is a difficult process that requires good understanding of the clinical situation and precise management. Historically Metal used to offer the smallest possible thickness with excellent strength but lacks resiliency with poor aesthetics.

Aim of the study: This In-vitro study was conducted to compare two different aesthetic materials PEEK and ACETAL regarding their mechanical strength when used as Overdenture framework in a relatively small thickness.

Material and Methods: 120 specimens were …

Evaluation Of Incorporating Bracing Arm In Precision Attachment Unilateral Removable Partial Denture, Hussein El Charkawi, Aya Fawzy, Mohamed M. Dohiem

Future Dental Journal

ABSTRACT

Purpose: This Randomized Control Trial study aimed to compare between two designs of Precision Attachment Unilateral Removable Partial Denture, one conventional design and the other modified with bracing arm and mesial rest.

Materials and Methods: twenty male patients having Kennedy Class II mandibular edentulous ridges received the two designs in a split mouth study for a follow-up period of eighteen months. Probing Pocket Depth around abutment was measured. A standardized radiographic technique was used to evaluate bone height changes.

Results: The results showed insignificant pocket depth and bone height changes in the two groups.

Conclusion: Precision Attachment Unilateral Removable …

The Effect Of Thickness And Accelerated Aging On Opalescence Of Different Ceramic Materials, Omar Hussein Abdelbary, Marwa Mohamed Wahsh, Ashraf Hussein Sherif, Tarek Salah Morsi

Future Dental Journal

Purpose: The objective of the study was to evaluate the effect of ceramic material type and thickness on opalescence before and after accelerated aging. Materials and methods: 180 all-ceramic slices were divided into three groups (n=60) according to the ceramic material (InCoris TZI, Empress CAD HT, and Empress CAD LT). Each group was further subdivided into four subgroups (n = 15) according to their thickness (0.5 mm, 0.8 mm, 1 mm and 1.2 mm).). CIE Lab coordinates were measured for each slice against black and white backgrounds using intraoral spectrophotometer and OP was calculated. All specimens were subjected to …

Retention Of Rapid Prototyped Complete Dentures Using Two Different Types Liquid Resin, Lina Khalaf Ismail, Mohammed Farouk Abdullah, Mohammed Mahmoud Dohiem

Future Dental Journal

Objectives: Comparing the retention of upper complete denture manufactured using two different denture base materials, both of them were manufactured using rapid prototyping method.

Methods: Nineteen patients were selected. For both groups, the dentures were manufactured using Rapid prototyping method following the next steps, a preliminary impression was made & trial denture bases were constructed on the primary casts for the upper & lower arches for a jaw relation record. A facebow record was used to mount the upper cast, while the lower cast was mounted using a centric relation record. Setting of artificial teeth was performed, then the denture …

Effect Of Hydrothermal Aging On Translucency Of Different Types Of Zirconia And Lithium Disilicate At Variable Thicknesses, Tarek Salah Morsi, Mennatallah M. Wahba

Future Dental Journal

Objective: The aim of this in vitro study was to investigate the effect of hydrothermal aging on translucency parameter (TP) of different zirconia ceramics in different thicknesses. Material and Methods: This is an in-vitro study in which translucency of six pre-sintered and pre-shaded zirconia materials (In Coris ZI, In Coris TZI, Bruxzir Solid, KATANA HT, KATANA ST, and KATANA UT) was compared to a low-translucency, lithium disilicate glass-ceramic material (IPS e.max CAD LT, Ivoclar Vivadent). The ceramic blocks were cut in the form of plates of dimensions (14x10 mm) and of different thicknesses (0.5, 0.7,1 mm). Thirty specimens of …

Evaluation Of Mucograft® In Increasing The Peri-Implant Soft Tissue Thickness In The Esthetic Zone., Sarah Gamal Moussa, Nivine Ibrahim Ragy, Khaled Abdel Ghaffar

Future Dental Journal

Objective: To study the effect of Collagen matrix Mucograft (CM) in enhancing the soft tissue thickness around immediate implants (II) in comparison to palatal connective tissue grafts (SCTG).

Subjects & methods: This randomized, controlled clinical trial included 16 patients, who were randomly divided into test (IIP +CM) and control (IIP+SCTG) groups. Clinical parameters evaluated at baseline, 3-months, and 6-months were papillary bleeding index (PBI), gingival index (GI), facial probing depth (FPD), palatal probing depth (PPD). Direct measurements of gingival thickness were evaluated at baseline and 6-months follow up. Pink esthetic score (PES) and white esthetic score (WES) were evaluated at …

Effect Of Different Surface Treatments On Bond Strength To Tetragonal And Cubic Zirconia, Mohamed Mahmoud Abdelnaby, Moustafa Nabil Aboushelib, Ossama Saleh Abdelghany, Amr El-Etreby

Future Dental Journal

Background: Dental zirconia has been widely used due to its superior mechanical properties. However, traditional etching techniques and surface treatments are generally ineffective on zirconia surfaces due to its inertness and lack of a silica phase. Hence, various surface treatments are applied to improve bonding to zirconia.

Objectives: The aim of this study was to evaluate the effect of three different surface treatments: low pressure air borne particle abrasion, selective infiltration etching and fusion sputtering on bond strength to both Tetragonal zirconia and Cubic zirconia.

Materials and Methods: Ninety two specimens of zirconia were used in this study. Two of …

Effect Of Artificial Aging On Hardness And Surface Roughness Of Two Types Of Zirconia, Ramy Hamed Elsherif, Mona Hossam El-Din Mandour, Rania A. Amin, Amr El Etreby

Future Dental Journal

No abstract provided.

The Effect Of Artificial Aging And Surface Treatments On Microtensile Bond Strength Of Resin Cement To Hybrid Ceramics, Engy I. Hassan Shohdy, Shereen A. Nossair, Amina M. Hamdy

Future Dental Journal

Purpose: To assess the effect of aging and various surface treatments on the microtensile bond strength of resin cement to two hybrid esthetic materials. Materials and Methods: Zirconia-reinforced lithium silicate (Celtra Duo, Dentsply Sirona, United States) and hybrid resin nanoceramic (Cerasmart TM, GC Corporation, Japan) blocks were cut into plates of 3 mm thickness. Each ceramic material was surface treated either with hydrofluoric acid etching and silane or with sandblasting and silane. A dual-cured adhesive resin cement (Panavia TM V5, Kuraray, U.S.A.) was utilized to bond the composite resin plates to the surface treated ceramic plates. The ceramic-composite resin blocks …