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 …

To Achieve An Ideal Functional Occlusion And Esthetical Outcome By Interdisciplinary Treatment – A Case Report, Nien-Chieh Lee, Pi-Lun Chen, Chien-Jung Pai, Whei-Lin Pan

Taiwanese Journal of Orthodontics

A harmonious face may involve the proper skeletal and dental relationship, in combination with the color, contour, and position of surrounding soft tissue. A 51-year-old female patient complained about her protrusive teeth and asked for improvement of her facial profile. The clinical examination of the patient revealed bimaxillary protrusion, gummy smile, and several ill-fitted fixed partial dentures. The “surgery-first” approach was chosen to improve her facial esthetics and to achieve a normal occlusion by reducing orthodontic treatment time. Therewas still 2~3mm space remaining between upper left canine and second premolar after orthodontic treatment, and this problem was resolved by prosthetic …

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 …

Comparison Between Linear And Curved Arrangement Of Telescopic Attachment Used For 4 Implants Mandibular Overdenture: A Study Of Clinical Deformity Of Denture Base, Ahmed G. Ghozy, Osama M. Askar, Ahmed A. Habib

Mansoura Journal of Dentistry

Objective: The aim of this study was clinical evaluation of stresses developed in complete mandibular overdenture assisted by four implants using telescopic attachment placed in curved or linear configurations. Materials and Methods: Twelve completely edentulous participants were selected for the study and each patient received four implants. All patients were into 2 equal groups regarding implants position: The first group (Linear design): The four implants were installed at lateral incisor and canine areas. The second group (Curved design): the four implants were installed bilaterally in the interforaminal region of the mandible (at canine and second premolar areas). The implants were …

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 …

10-Minute Ebd: Digital Scans Or Conventional Impressions: Which Results In Better Crowns?, Laura Tsu Dds

The Journal of the Michigan Dental Association

This 10-Minute EBD column critically evaluates the outcomes of digital scans versus conventional impressions in fabricating single-unit crowns, focusing on factors such as marginal and internal fit. Employing a PICO question and a literature search pathway via PubMed, the analysis includes systematic reviews and meta-analyses. Findings suggest that crowns from digital scans generally exhibit clinically acceptable marginal and internal fit, often outperforming conventional impressions. However, heterogeneity in study samples and methodologies contributes to varied results. While digital scans meet the standard of care, ongoing research is essential for a comprehensive understanding of the evolving landscape in digital prosthodontics.