Prosthodontics and Prosthodontology Commons^™

Color Stability Of Conventional, 3d-Printed, And Milled Denture Teeth After Immersion In Coloring Agents: An In Vitro Study, Dany Nassif, Nancy Chemaly, Rim Bourgi, Carole Abi-Ghosn, Louis Hardan, Jihad Fakhouri

International Arab Journal of Dentistry

Objectives: This study investigates the color stability of denture teeth made from different materials when subjected to various staining solutions.

Methods: Forty-five A1 shade upper central incisors were divided into three groups: prefabricated, 3D printed, and milled denture teeth (N=45). Each group was further divided into three subgroups, with teeth immersed in coffee, wine, and artificial saliva for up to 120 days (n=5). ∆E values for color change were measured using an Optishade colorimeter.

Results: The type of teeth, type of solution, and immersion time had a significant effect on color stability (p < 0.001). Interactions between the three variables were all significant (p < 0.001). Conventional denture teeth showed slight color changes with saliva (ΔE = 1.256 by day 120), moderate changes with wine (ΔE = 2.893), and more significant changes with coffee (ΔE = 5.208). Milled denture teeth exhibited no color changes with saliva, noticeable changes with wine (ΔE = 5.359), and moderate changes with coffee (ΔE = 3.137). 3D printed denture teeth showed no color changes with saliva, but increased changes with wine (ΔE = 2.533) and highly significant changes with coffee (ΔE = 10.546). Coffee consistently caused the highest ΔE values, especially in 3D printed teeth.

Conclusions: The study …

Comparative Evaluation Of Marginal And Internal Fit Of Zirconia Crown Designed Using Artificial Intelligence And Cad-Cam Software: A Systematic Review, Pritesh Gangde, Sweta Kale Pisulkar, Arushi Beri, Pritam Das

International Arab Journal of Dentistry

Introduction: The long-term performance of dental restorations depends on their internal and marginal fits. Improvements in the fit of restorations, especially zirconia crowns, have been investigated through the use of diverse materials, manufacturing processes, and impression techniques.

Objectives: The purpose of this review was to examine the internal and marginal fit of zirconia crowns made with CAD/CAM software with artificial intelligence (AI) software.

Methods: Using a combination of keywords and MeSH terms, the literature search was carried out across seven databases: PubMed, Scopus, Web of Science, Cochrane Library, Embase, ProQuest, and ScienceDirect from inception till 1st of …

Impact Of Diabetes Mellitus On Oral Health And Oral Health-Related Quality Of Life In Older Adults In A Malaysian Healthcare Facility, Nur Aisyah Muntadar, Nur Camelia Azlyn Kamarol Adlee, Eleena Mohd Yusof

Journal of Dentistry Indonesia

Objective: To investigate the association between oral health status and oral health-related quality of life (OHRQoL) in older adults with diabetes mellitus (DM). Methods: A cross-sectional study involving participants aged 60 and above from a Malaysian healthcare facility utilized structured interviews using the Geriatric Oral Health Assessment Index (GOHAI) questionnaire. Intraoral assessments, including BPE, DMFT index, evaluation of edentulism and assessment of restoration/denture type/quality, were conducted. Statistical analysis included independent sample t-test, one-way ANOVA, nonparametric, and correlation coefficient tests. Results: Among 69 participants (36 with DM, 33 without), with a mean age of 65.97 years, no significant …

Effect Of Build Orientation On The Fabrication Trueness Of Additively Manufactured Implant-Supported Complete Arch Interim Fixed Prostheses, Amir H. Nejat, Mehmet Esad Güven, Gülce Çakmak, Burak Yilmaz, Mustafa Borga Donmez

School of Dentistry Faculty Publications

PURPOSE: To evaluate how build orientation affects the fabrication trueness of additively manufactured implant-supported complete arch prostheses by comparing them to subtractively manufactured high-impact polymer-based prostheses. MATERIALS AND METHODS: An edentulous maxillary model with four implants at canine and first molar regions bilaterally was digitized (ATOS Core 80 5MP) to design a reference implant-supported complete arch prosthesis standard tessellation language file (RF-STL). The STL file was used to manufacture prostheses additively in five different orientations according to the build platform (AM-0, 0-degree; AM-15, 15-degree; AM-30, 30-degree; AM-45, 45-degree; AM-90, 90-degree) or subtractively (SM-HIP, control) (n = 10). The prostheses were …

Fabrication Of Implant Supported Hybrid Denture Using Multi-Unit Abutments In A Patient With Generalised Aggressive Periodontitis, Anupama Aradya, Raghavendra Swamy K N, Chandan S N, Prashanth M B

International Journal of Health and Allied Sciences

This case report describes the prosthodontic rehabilitation of a geriatric patient with generalized aggressive periodontitis. The patient was advised to for full extraction. An implant supported hybrid prosthesis with multi-unit abutments was fabricated for the patient who chose a fixed kind of prosthesis. Implants were placed in the maxillary & mandibular arch. Frameworks were waxed, plastic castable abutments were used for casting, denture teeth were waxed to the hybrid framework and a final wax try-in to check and adjust the maxilla-mandibular relationships before processing, the prosthesis was placed. The clinical and radiologic results met expectations.

Effect Of Different Digital Technology On The Adaptation And Retention Of Co-Cr Partial Denture Frameworks, Islam Heiba

Dentistry

Purpose: To evaluate the overall adaptation and retention of class I cobalt-chromium (Co-Cr) removable partial denture (RPD) frameworks using three different computeraided design and computer-aided manufacturing (CAD-CAM) technologies: Indirect wax milling with lost wax technique (LWT), direct milling, and selective laser melting (SLM) technique. Materials and Methods: An educational maxillary stone model (Kennedy class I) was scanned after preparing rest seats to create a resin model. The resin model was scanned, and the RPD framework was digitally designed and saved as a standard tessellation language (STL) file. Twenty-four Co-Cr RPD frameworks were then constructed and divided into three groups (n …

Application Of Different Digital Technology On Partial Denture Frameworks, Islam Heiba, Fardos N Rizk, Marwa Sabet Prof., Shaimaa Mohamed Lotfy A. Prof

Dentistry

AIM or PURPOSE

MATERIALS and METHOD

Resin-Build-Up As A Direct Monoblock Concept For Root Canal Dentin, Core, And Crown Restoration On Anterior Endodontically Treated Tooth, Citra Kusumasari, Takashi Hatayama, Junji Tagami, Yasushi Shimada Prof.

Journal of Dentistry Indonesia

The long-term clinical performance of restoration in endodontically treated teeth (ETT) is an essential yet complicated strategy to achieve it. A resin-build-up tooth with higher elastic moduli is a minimally invasive strategy to decrease the risk of catastrophic root fracture. Additionally, intracanal resin composite anchorage simplifies the restorative procedure and increases the bonding. Objective: This case report describes a resin-build-up tooth restoration using the direct monoblock concept to replace a failed metal post and core and porcelain fused to metal (PFM) crown on the maxillary right central incisor. Case report: A 50-year-old man attended a dental university hospital …

Minimally Invasive Treatment Of Molar Incisor Hypomineralization Without Using Burs: Experiences Via A Case Series In Vietnam, Võ Truong Nhu Ngoc, Nguyen Phương Huyen, Le Khả Anh, Phan Thi Thu Hang, Hoang Kim Loan, Ta Thành Dong

Journal of Dentistry Indonesia

Mild form of molar-incisor hypomineralization (MIH) on anterior teeth are posing great challenges to dental practitioners as it can have a huge aesthetic impact. In terms of deep MIH-related lesion below the healthy enamel, highly invasive methods for approaching the lesion body and removing the entire hypomineralized enamel using burs could lead to failures including aesthetic problems and even further tooth structure damage to the affected teeth. Case report: To resolve t his issue, we have proposed a modified resin infiltration technique based on the minimally invasive philosophy. In this study, we would like to report three specific cases …

Clinical Features Of Anterior Teeth Affected By Molar Incisor Hypomineralization And Treatment Experiences Using Transilluminated Light: A Cross-Sectional Study, Phạm Thanh Ha, Nguyễn Phương Huyen, Phạm Kim Thanh, Lương Minh Hang, Trần Tuấn Anh, Võ Như Trương Ngoc, Lê Khả Anh, Trần Anh Tuan, Tạ Thành Dong

Journal of Dentistry Indonesia

Classification and resin infiltration treatment of MIH-related permanent anterior teeth are increasingly receiving attention nowadays. Objective: The study aims to evaluate the characteristics of these teeth; and to assess factors regarding treatment. Methods: A cross-sectional study was conducted using transilluminated and reflected light photographs, and the lesion was classified according to its color, size, type, heterogeneity and surface integrity. The data were analyzed using a chi-square test and multivariate logistic regression analysis to evaluate enamel craze lines (ECL), post-eruptive breakdown (PEB), and treatment procedures. Results: 73 teeth from 46 patients were included, in which 53 teeth had been treated. Size …

Success Of Implants In Patients With Human Immunodeficiency Virus, Osman Khan, Kathryn Gauch, Alison Newgard Dds, Ezzard Rolle Dds

The New York State Dental Journal

With the development of effective antiviral medication, patients with human immunodeficiency virus (HIV) are living longer, with fewer comorbidities. Because HIV is a chronic disease, patients are looking for long-term solutions to dental care. As dental providers, it is important that we treat patients to the standard of care. Currently, implants are the standard of care for treating edentulous areas. Dental providers may be hesitant to recommend implants in patients with complex medical conditions like HIV. However, research has shown that if a patient with HIV is well-controlled, dental implant success is the same as with a healthy non-HIV infected …

Efect Of Conventional Cigarette Smoking And Recent Heated Tobacco Products On Cad/ Cam Restorative Materials, Fatma Makkeyah, Omar Elsergany, Mohamed Shamel, Mahmoud Al Ankily

Dentistry

No abstract provided.

The Effect Of Using Two Sintering Cycles On The Optical Properties Of Gradient Multi-Layered Zirconia (In Vitro Study), Fatma Makkeyah, Passent Elghalab, Maged Zohdy, Mostafa Nour

Dentistry

No abstract provided.

The Effect Of Preparation Design And Thermal Cycling On The Marginal Accuracy Of Hybrid Ceramic Laminate Veneers, Esraa El Bably, Ossama Saleh Abdelghany, Mostafa Aboushahba, Shereen Ahmed Nossair

Future Dental Journal

Aim: This study investigated the effect of preparation design and thermal cycling on the marginal accuracy of hybrid ceramic laminate veneers. Materials and Methods: A total of twenty 3D printed dies of central incisors prepared with 2 preparation designs; butt joint and palatal wrap design were fabricated. Each type of preparation was assigned into 2 subgroups (n=5/each subgroup) according to the type of material used for fabrication of the laminate veneer; hybrid ceramic and lithium disilicate (served as control). Marginal discrepancy was evaluated using a digital microscope before and after thermocycling. Results: Statistically analysis of marginal gaps revealed that before …

Measuring Accuracy Of Dolphin Imaging Software In Predicting Upper Jaw Soft Tissue Profile Changes In Class Ii Adult Patients Treated With Extraction Versus Non-Extraction., Amr Amin Arif, Esam Nasef, Amira Aboalnaga

Future Dental Journal

Abstract

Objective: To assess the accuracy of Dolphin Imaging software in predicting upper jaw profile changes in class II patients treated by extraction and non-extraction.

Methods: The records of 60 Class II div 1 patients were selected; 30 patients treated by extraction of upper first premolar and 30 patients treated by non-extraction. The Pre- and post-treatment lateral cephalometric x-rays of each patient were traced using Dolphin software. The actual hard tissue changes due to treatment were calculated and installed into the prediction module to generate the predicted profile. The soft tissue measurements of the actual post-treatment and predicted profiles were …

Effect Of Acidic Media On Surface Topography And Color Stability Of Two Different Glass Ceramics, Fatma Makkeyah, Nesrine A. Elsahn, Mahmoud Bakr, Mahmoud Al Ankily

Dentistry

No abstract provided.

Effect Of Layer Thickness, Inner Structure, And Implant Angulation On The Accuracy Of 3d Printed Models With Implant Analogs, Omar Elsergany

Dentistry

Objective: This study evaluated the effect of layer thickness, model inner structure, and im- plant angulation on the accuracy of 3D printed models with repositional analogs.

Materials and methods: 126 models designed to receive all-on-4 implant retained fixed den- tal prosthesis were 3D printed. Models were divided into 2 groups (n=63) according to posterior implant angulation (Group 1; 30 ̊ and group 2;45 ̊). The models were then divided into three sub- groups (n=21) according to the printing layer thickness (Group a; 50 μm, group b; 100 μm, and group c; 150 μm). Each subgroup was later subdivided into 3 …

Color Stability And Marginal Adaptation Of Ceramic Veneers Cemented Using Different Composite Resins, Basma Refaat Fayad, Maged Zohdy, Engy Adel Farag, Ghada Hussein

Dentistry

BACKGROUND: The purpose of this study was to compare the color stability and marginal adaption of lithium disilicate veneers before and after thermocycling using various resin composite materials employed as cement. METHODS: Laminate veneer preparation was done on an acrylic tooth according to standardized procedures. The veneer preparations were duplicated into twenty-one dies. The veneers were fabricated from lithium disilicate using the CEREC in Lab system. According to the cement type, the twenty-one die specimens were randomly divided into three equal groups: group I, with light cured adhesive resin cement (N.=7), group II, with owable light cured composite, and group …

Toward Electrical Impedance Sensing Surgical Drill For Tissue Boundary Detection, Harshavardhan Devaraj

Dartmouth College Ph.D Dissertations

Dental implantation is an increasingly common procedure used to treat missing teeth. However, surgical drilling to place the implant poses a high risk of injury to critical anatomy, such as inferior alveolar nerve injury or maxillary sinus perforation. A real-time surgical feedback system sensing proximity of these critical anatomy could reduce injury risks. This dissertation investigates the development of such a system that incorporates an electrical impedance sensor into the tip of a surgical drill.

A simulation framework based on finite element method (FEM) was developed to optimize the sensor as it approached a high impedance boundary. The accuracy of …

Effect Of Two Different Intraoral Polishing Systems On Surface Roughness, Color Stability, And Bacterial Accumulation Of Zirconiareinforced Lithium Silicate Ceramic, Fatma Makkeyah, Dina Mohamed Mostafa, Griffith University - Australia, Mahmoud Al Ankily

Dentistry

No abstract provided.

Accuracy And Surface Roughness Of Co-Cr Partial Denture Frameworks With Different Digital Fabrication Methods, Islam Heiba

Dentistry

Statement of problem. Traditional removable partial denture (RPD) manufacture is being phased out in favor of computer-aided design and computer-aided manufacturing (CAD-CAM) techniques and rapid prototyping (RP), which provide more efficient methods of producing RPD frameworks. However, studies comparing the accuracy and surface roughness of these approaches on RPD frameworks are still scarce. Purpose. The purpose of this in vitro study was to evaluate the accuracy and surface roughness of class I cobalt chromium (Co-Cr) removable partial denture frameworks digitally constructed using 2 different CAD-CAM technologies: direct milling (DM) and selective laser melting (SLM). Material and methods. An educational maxillary …

The Effect Of Die Material On The Crown Fracture Strength Of Zirconia Crowns, Akram Sayed Ahmed, Nathaniel C. Lawson, Chin-Chuan Fu, Pranit V. Bora, Edwin Kee, Amir H. Nejat

School of Dentistry Faculty Publications

BACKGROUND: Determination of the eligibility of several tooth analog materials for use in crown fracture testing. METHODS: A standardized premolar crown preparation was replicated into three types of resin dies (C&B, low modulus 3D printed resin; OnX, high modulus 3D printed resin composite; and highest modulus milled resin composite). 0.8 mm zirconia crowns were bonded to the dies and the maximum fracture load of the crowns was tested. Twelve extracted human premolars were prepared to a standardized crown preparation, and duplicate dies of the prepared teeth were 3D printed out of C&B. Zirconia crowns were bonded to both the dies …

Alginate Dressings- Revisiting The Past, Oshine Jha, Oshine Jha

Annual Research Symposium

Wound healing in simple terms is the healing of skin which involves various mechanisms. It is not dressings themselves that heal wounds, but the careful selection of appropriate dressings that provide the optimal wound-healing environment for the individual wound. Wound dressings are prepared from biopolymers, synthetic polymers and biomaterials.

Clinical, Radiographic And Biochemical Evaluation Of One-Piece Vs Two-Piece Single Implants After 5 Years Of Functional Loading, Ippolito Caputo

Annual Research Symposium

The aim of this study was to compare the clinical and radiographic conditions and the expression of proinflammatory cytokines in peri-implant crevicular fluid (PICF) of two-piece/bone level (TP/BL) versus one-piece/tissue level (OP/TL) single implants with a laser-microgrooved collar after at least 5 years of functional loading.

Influence Of Intraradicular Restoration Technique On The Biomechanical Behavior Of Upper Canines, Ana Paula Gomes

Annual Research Symposium

This study assessed the stress distribution in endodontically treated upper canines subjected to the cementation of two types of intraradicular retainers.

Influence Of Abutments Surface (Machined Vs. Laser-Microgrooved) In Soft-Tissue Response During One Year Of Function: Clinical And Biochemical Outcomes Of A Rct With Split-Mouth Design, Elisa Maccari

Annual Research Symposium

To evaluate peri-implant soft tissue behaviour around machined vs laser-microgrooved implants/healing/prosthetic abutments during 1 year of function by assessing IL-6, IL-1b and MMP-8 levels in peri-implant crevicular fluid (PICF).

Silver Nano Particle Or Sodium Hypochlorite A Better Denture Cleanser, Dr.Tessa Kuriachan, Dr.Rahul Senan, Dr. Parvathy B, Dr. Keerthi Pt

Annual Research Symposium

Denture hygiene is compromised both due to the limitations of the denture base material as well as the lack of manual dexterity of denture wearers. Moreover, the rough tissue surface of the dentures affect the initial formation of candidal biofilms probably because it provides a greater surface area and protected sites for colonization. Among the various methods available to disinfect dentures, chemical method using Sodium hypochlorite seems to be the most effective one. Even though sodium hypochlorite is an effective denture cleanser,it has many disadvantages like the increased roughness of the denture surface and decreased colour stability. So a better …

Dentofacial Effects Of Radiotherapy On Pediatric Population With Retinoblastoma, Kristi Truong

Annual Research Symposium

This literature review investigates the dentofacial consequences of radiotherapy in young patients with retinoblastoma by referencing current research. In addition, the management and rehabilitation of the dentofacial abnormalities, highlighting orthodontic, surgical, and prosthetic approaches, is examined. By understanding the changes of dentofacial development due to retinoblastoma treatment, effective management techniques can be implemented to resolve significant issues, relating to dental and skeletal relationship and facial appearance.

Rapid Direct Wax Up For Provisional Crown Fabrication, Debra A. Woo Dds, Ma, Chi Tran

Pacific Journal of Health

While there are numerous choices for provisionalization, this technique is advantageous when a patient presents with an immediate need for temporization and there is limited time in the schedule for both the patient and provider. Providing an efficient solution using readily available materials that address the esthetics, function and reduction of sensitivity until the patient can be appointed for definitive treatment is illustrated.

The Use Of Tissue Grafts Associated With Immediate Implant Placement To Achieve Better Peri-Implant Stability And Efficacy: A Systematic Review And Meta-Analysis, Enrico Maria Rondone, Bruno Leitão-Almeida, Miguel Silva Pereira, Gustavo Fernandes, Tiago Borges

MOSDOH Faculty Publications

Background: The goal of this systematic study and meta-analysis was to evaluate the efficacy of hard and/or soft tissue grafts associated with type-1 implants on healing and treatment outcomes. The primary outcomes studied were implant survival rate, pocket depth, marginal periimplant recession, bone loss, bone thickness (volumetric change), interproximal bone level, mesial and distal papilla migration, and radiographic evaluation; and the secondary parameters were Pink Esthetic Score (PES), vertical distance from implant shoulder and bone, Visual Analogue Score (VAS), Implant Stability Quotient (ISQ), and biological complications (fistulas, pain, mucositis, and peri-implantitis). Methods: The PICO strategy was used to formulate the …