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Articles 31 - 60 of 223
Full-Text Articles in Dentistry
Relative Efficacy Of Innovative Endodontic Antimicrobial Agents, Ziqi Sally Liu
Relative Efficacy Of Innovative Endodontic Antimicrobial Agents, Ziqi Sally Liu
All ETDs from UAB
Purpose: Novel endodontic antimicrobial agents would potentially improve outcomes of endodontic treatment, including regenerative endodontic therapy. The aim of this study was to determine the efficacy of a novel experimental compound, analogue #66, compared to tigecycline and other controls in an ex-vivo model. Materials and Methods: MIC determination with tigecycline and analogue #66 was done for Streptococcus mutans and Streptococcus intermedius. Forty single rooted extracted teeth were inoculated weekly for three weeks with S. intermedius to create a biofilm. All teeth were instrumented to 40/06 to working length and irrigated with 5% NaOCl. Teeth were randomly divided into 4 groups …
An In Vitro Assessment Of The Antibacterial Activity, Biocompatibility, And Mineralization Inducing Potential Of Biodentine®Xp, Chandani Arjun Mantri
An In Vitro Assessment Of The Antibacterial Activity, Biocompatibility, And Mineralization Inducing Potential Of Biodentine®Xp, Chandani Arjun Mantri
All ETDs from UAB
Purpose: The purpose of this study was to assess the in-vitro antibacterial activity, biocompatibility, and mineralization-inducing potential of Biodentine® XP. Methods: Four contemporary pulp capping materials, namely Dycal®, a calcium hydroxide, Theracal® LC, a resin calcium silicate and, tricalcium silicates namely Biodentine®, and Biodentine® XP were compared in the study. The antibacterial activity of the pulp capping materials included in the study was evaluated against Streptococcus mutans UA159 and Enterococcus faecalis ATCC 29212 and were determined by the direct culture test. The biocompatibility of these materials in preodontoblastic 17IIA11 cells were compared by the MTT assay and mineralization-inducing potential in …
Gain Of Keratinized Muscosa Around Dental Implants Using A Combination Of Strip Gingival Graft And Acellular Dermal Matrix - A Prospective Case Study, Louai Haddad
All ETDs from UAB
Several surgical techniques have been described to increase keratinized tissue (KT) around implants and teeth. Despite various methods, the bulk of evidence reported that the use of keratinized autogenous graft (i.e., Free Gingival Grafts (FGG)), harvested from the patient’s palate, remained the gold standard in soft tissue augmentation procedures and provided more predictable results. However, soft tissue autograft supply can be limited, and its harvesting is associated by increased patient morbidity. Several clinical studies have demonstrated the effectiveness of using allogenic soft tissue grafts such as Acellular Dermal Matrix Allograft (ADMA) instead of FGG to augment keratinized tissue (KT). This …
The Role Of Runx2 And Sp7 In Ameloblast Differentiation And Postnasal Enamel Synthesis, Reem Alhefdhi
The Role Of Runx2 And Sp7 In Ameloblast Differentiation And Postnasal Enamel Synthesis, Reem Alhefdhi
All ETDs from UAB
In mammals, the mineralized tissues include bone, dentin, enamel, and cementum. Runx2 and its downstream target Sp7 are essential transcription factors for the osteoblast differentiation and formation of bone tissue. However, transcription factors that regulate ameloblast differentiation and enamel secretion are less understood. To uncover the role of Runx2 and Sp7 in ameloblasts differentiation and enamel synthesis, we established a colony of Runx2 and Sp7 floxed mice. Both genes were deleted specifically in ameloblasts using K14-Cre transgenic mice. The successful deletion of Runx2 and Sp7 genes in the epithelium, including ameloblasts, was confirmed using Td-Tomato and GFP reporter, respectively. Histological …
Comparison Of Crown Fracture And Wear Resistence Of Resin 3d Printed Permanent Crown And Other Restorative Materials, Victor Moncada
Comparison Of Crown Fracture And Wear Resistence Of Resin 3d Printed Permanent Crown And Other Restorative Materials, Victor Moncada
All ETDs from UAB
Statement of Problem: The resin for 3D printing permanent crowns is a recently approved material with limited literature evidence to support its in vitro properties. Comparing the mechanical properties such as fracture load (N) and wear resistance for 3D printing permanent restorations resins would represent a very good reference to consider future clinical decisions. Purpose: To investigate the fracture load (N) and wear resistance of the resins for 3D printing permanent crowns available in the U.S. dental market and to compare amongst them using lithium disilicate as a reference. Materials and Methods: for the crown fracture test, the experimental design …
A Prospective Randomized Clinical Trial To Compare Side Access Mucosal Releasing Incision (Samri) And Sulcular Tunnel Access And Root Coverage Procedures With Coronally Advanced Flap And Acellular Dermal Matrix (Adm) To Treat Teeth With Gingival Recession And Lack Of Adequate Keratinized Tissue. A Pilot Study, Wangsoo Lee
All ETDs from UAB
Aims. The aim of this prospective, randomized, blinded, controlled clinical trial was to compare clinical and patient-centered outcomes of Cairo recession type 1 (RT1) gingival recession defects treated with acellular dermal matrix (ADM) grafts and either Side Access Mucosal Releasing Incision (SAMRI) or Sulcular Tunnel Access (STA) techniques with coronal flap advancement (CAF). Methods. 11 patients, 22 surgical procedures and 81 gingival recession defect sites with Cairo RT1 gingival recession and £ 2mm of keratinized tissue at each site were randomly divided into two groups (A: SAMRI, B: STA) and were treated and evaluated for 12 months post-surgically. Clinical measurements …
Failure Modes Of Different Zirconia Crown Heights And Materials On Titanium Base Abutments, Aikaterini Anastasaki
Failure Modes Of Different Zirconia Crown Heights And Materials On Titanium Base Abutments, Aikaterini Anastasaki
All ETDs from UAB
Statement of the Problem: The existing scientific literature lacks comprehensive information regarding the influence of zirconia crown height on debonding and fracture occurrences between zirconia crowns and titanium base abutments. Additionally, there is a lack of comparative studies evaluating different zirconia materials as restorative options for screw-retained restorations. Purpose: The purpose of this study was to assess the failure modes of the zirconia crown/titanium implant abutment complex by investigating the impact of increasing zirconia crown heights and different zirconia materials. Materials and Methods: The experimental design encompassed six groups, each consisting of 10 specimens. Group 1 included 10 non-anatomical crowns …
Role Of Dpy30 In The Epigenetic Regulation Of Odontoblast Differentiation In Vitro, Namrata Landge Rana
Role Of Dpy30 In The Epigenetic Regulation Of Odontoblast Differentiation In Vitro, Namrata Landge Rana
All ETDs from UAB
Purpose: Dentin is produced from odontoblasts, derived from human Dental Pulp Cells (hDPCs), which are essential for dentin formation, remodeling, and mineral hemostasis. Epigenetic mechanisms are believed to be involved in odontoblast differentiation and function, and H3K4 methylation is associated with gene activation which is fundamental to histone-based epigenetics. The SET1/MLL complexes are mammals' major histone H3K4 methylation enzymes. DPY30 is a core subunit of SET1/MII complexes, mammalian's major histone H3K4 methyltransferases. It plays an important role in regulating fundamental processes including the determination of cell lineage, growth, and differentiation. Thus, histone-based epigenetic mechanisms are involved in odontoblast differentiation and …
Comparing Volumetric Wear Of Lithium Disilicate Against Different Ceramics And Enamel Antagonist An In-Vitro Study, Krisha Shah
Comparing Volumetric Wear Of Lithium Disilicate Against Different Ceramics And Enamel Antagonist An In-Vitro Study, Krisha Shah
All ETDs from UAB
Background: In patients with restored dentitions, it is possible for crowns on opposing teeth to gradually wear each other through chewing and bruxism. Therefore, the wear of restorative materials used for dental crowns is an important mechanical property for their long-term clinical success. Lithium disilicate is a widely used dental ceramic due to its strength, machinability, and translucency. Due to the rising use of ceramic restorations, a comparison of the wear resistance of lithium disilicate against different ceramic crown materials is useful for the clinician when selecting a crown material to oppose an existing lithium disilicate crown. Objective: To compare …
Effect Of Different Supporting Die Materials And Crown Thicknesses On The Fracture Load Of Monolithic 3y-Tzp Zirconia And Lithium Disilicate Crowns, Akram Mohamed Mohamed Gad Sayed Ahmed
Effect Of Different Supporting Die Materials And Crown Thicknesses On The Fracture Load Of Monolithic 3y-Tzp Zirconia And Lithium Disilicate Crowns, Akram Mohamed Mohamed Gad Sayed Ahmed
All ETDs from UAB
Background: Conventionally, the strength of dental materials used for fixed restorations is measured using specimens of simplified geometry (i.e bars or discs). There is value in measuring the strength of these materials in their anatomic geometry (i.e crowns) under clinically relevant loading conditions. One advantage of performing the so-called crown fracture test is that the material may benefit from its ability to be strengthened by its bond to a tooth-mimicking die. When performing a crown fracture test, the ideal die material is natural tooth structure. However, the variability in natural tooth anatomy and microstructure makes the use of a standardized, …
Short Root Anomaly: Prevalence, Genetics, And Its Effect In Orthodontic Treatment, Lauren Sharp
Short Root Anomaly: Prevalence, Genetics, And Its Effect In Orthodontic Treatment, Lauren Sharp
All ETDs from UAB
Short root anomaly (SRA) is a poorly understood developmental defect of root formation. Patients with this condition have short roots with rounded apexes and significantly reduced root to crown (R/C) ratios1, which can compromise dental care and may increase the risk of root resorption during tooth movement. SRA prevalence ranges from 1-10% but has not been studied in many ethnic populations. Furthermore, its genetic basis is undetermined. Our goals were to determine the prevalence of SRA among various ethnicities, identify genetic variations contributing to its phenotype, and evaluate how SRA can affect the outcome of orthodontic treatment. This study found …
Nasal Septum Deviation In Patients With Or Without Impacted Canines, Naurine Shah
Nasal Septum Deviation In Patients With Or Without Impacted Canines, Naurine Shah
All ETDs from UAB
There has been a recent rise in interest for studying the relationship between orthodontic treatment and the airway. Most studies have focused on measuring the oropharyngeal airway and how it is affected by growth with or without orthodontic treatment. The Nasal Septum, a midline structure is an integral part of the anatomy of the nasopharynx. Nasal Septum Deviations (NSD) can be caused by mechanical injuries, nasal polyps, neoplasia, infections, genetic influences as well as congenital malformations. The proximity of the septum can be correlated to changes in the housing of dentition in the naso maxillary complex. Objective: We aim to …
Effects Of Light Curing Bonding Agent With Dual Cure Cement On The Retention Of Zirconia And Lithium Disilicate Crowns: An In-Vitro Study., Mariam Issa
All ETDs from UAB
Objective: To measure and compare the bond strength of zirconia and lithium disilicate crowns bonded to human teeth (enamel and dentin) using universal adhesive with resin cement and different light curing protocols.Methods: Sixty extracted sound non carious human teeth (second premolars) were stored in formalternate solution (FormalternateTM, Concentrate, 500 mL, Canada) and the roots were notched and mounted into acrylic resin (Yates Motloid, USA). Flat surface preparation was done on the occlusal surface of the samples using model trimmer. The surface area of the specimens was measured with digital light microscopy. Samples were randomly divided into six groups of 10 …
Lateral Ridge Augmentation Using Allograft Bone Particles Hydrated With Or Without Recombinant Human Platelet-Derived Growth Factor: A Clinical And Histological Randomized Controlled Trial, Lauren Miele
All ETDs from UAB
Lateral ridge augmentation is a common procedure to increase the width of bone in preparation for a dental implant. A certain thickness of bone is necessary for implant health, making ridge augmentation procedures necessary for many patients. Research into the use of growth factors in ridge augmentation is ongoing, but few studies have examined the use of recombinant human platelet-derived growth factor homodimer (rhPDGF-BB) in ridge augmentation. This study examines histologic, clinical, and patient reported outcomes when horizontal ridge augmentation is completed using freeze dried bone allograft hydrated in rhPDGF-BB or saline and a resorbable crosslinked collagen membrane. Histologic results …
Functional Analysis Of Mandibular Movements In Three Different Groups Including Patients With Total Joint Replacements, Previous Orthognathic Surgery, And A Control Group, Adriana Morales Buendia
Functional Analysis Of Mandibular Movements In Three Different Groups Including Patients With Total Joint Replacements, Previous Orthognathic Surgery, And A Control Group, Adriana Morales Buendia
All ETDs from UAB
Purpose: To Assess mandibular movements, including mouth opening, lateral excursion, and protrusion among patients with total joint replacements and orthognathic surgery compared to healthy control participants with no known TMJ disorders. Methods: Fifty-two subjects from 18 to 66 years of age were included in this cross-sectional study, distributed in three groups: patients with total joint replacement (n = 16), patients who underwent orthognathic surgery (n=17), and healthy control subjects (n = 19) to quantitatively determine whether there is statistically significant difference among the groups regarding opening, lateral excursion, and protrusion movements. The non-invasive system SiCAT JMT+ device was used to …
Accuracy Of "Reading" Untraced Lateral Cephalometric Radiographs Among Practicing Orthodontists, Shannon Rea
Accuracy Of "Reading" Untraced Lateral Cephalometric Radiographs Among Practicing Orthodontists, Shannon Rea
All ETDs from UAB
Objective: To determine if orthodontic clinicians are able to ascertain diagnostic information from untraced lateral cephalometric radiographs. Materials and Methods: A survey consisting of 5 cases was presented to practicing orthodontists. Each case presented a lateral cephalometric radiograph and included ten questions requiring the respondent to make clinical judgments and approximations of the following variables: skeletal classification, maxilla and mandibular skeletal relationship, SNA, SNB, ANB, vertical skeletal classification, FMA, molar relationship, maxillary incisor proclination, and mandibular incisor proclination. 46 responses were collected and analyzed. Results: Case 3, the normodivergent, Skeletal Class I patient had the highest percentage of correct answers …
Comparison Of Flexural Strength, Fracture Toughness, And Color Stability Of Cad/Cam 3d-Printed Denture Base Materials To Milled And Conventional Heat-Polymerized Materials: An In Vitro Study, Yamen Safadi
All ETDs from UAB
Digitalization of the design and manufacturing of complete dentures streamlines the clinical and laboratory processes and provides increased efficiency and enhanced denture quality.[1, 2] The two most common CAD/CAM techniques for denture base manufacturing are additive (3D-printing) and subtractive (milling) manufacturing. Milled denture bases have been proven to be comparable in their physical and mechanical properties to conventional heat-polymerized denture bases,[3-6] and in many studies found to be superior to 3D-printed denture bases.[7-13] However, 3D-printing offers many advantages over milling that appeal to both clinicians and dental technicians related to investment and operational costs, maintenance, speed of manufacturing, diversity of …
Comparison Of Radiological Signs To Clinical Symptoms In Children With Jia. A Pilot Study, Shubham Sharma
Comparison Of Radiological Signs To Clinical Symptoms In Children With Jia. A Pilot Study, Shubham Sharma
All ETDs from UAB
JIA, which stands for juvenile idiopathic arthritis, is a group of chronic inflammatory joint diseases that usually occur in children under the age of 16 and last for at least six weeks1–5. It is one of the most common chronic joint diseases in childhood1 and affects up to 150 out of every 100,000 children worldwide6. This condition has no identifiable cause and is different from adult rheumatoid arthritis. Unfortunately, JIA can have a significant negative impact on the lives of these young children, causing disability and impairing their daily activities. TMJ involvement is more common than previously believed in JIA …
The Difference In Fracture Strength Of Translucent Zirconia (5y-Z) Using Different Cements And Surface Treatments, Esra Elamin
The Difference In Fracture Strength Of Translucent Zirconia (5y-Z) Using Different Cements And Surface Treatments, Esra Elamin
All ETDs from UAB
Statement of Problem: With the recent advent of translucent and ultra-translucent zirconia, it is unknown if this type of high-strength ceramic restoration requires adhesive cementation to enhance retention as well as the effect of surface treatment thus its clinical applicability requires further investigation. Purpose: To investigate the difference in fracture strength of translucent zirconia (5Y-Z) using different crown thickness, different cements under different surface treatment conditions. Materials and Methods: The experimental design consisted of five groups of 30 specimens each. Two different cements were utilized under different surface treatment conditions. Copings of (1.0 mm) uniform thickness were milled of 3Y-zirconia …
Tooth Agenesis: Prevalence And Pattern Among Different Ethnicities, Gabrielle Coe
Tooth Agenesis: Prevalence And Pattern Among Different Ethnicities, Gabrielle Coe
All ETDs from UAB
Tooth agenesis is one of the most common developmental anomalies in humans and is defined as the failure of tooth development or odontogenesis. Prevalence of non-syndromic tooth agenesis has a reported range of 1.6-36.5% and varies by gender, ethnicity, and location. While tooth agenesis is well studied, information within ethnic groups requires further investigation. In this study, dental records of 3033 patients of the UAB School of Dentistry were evaluated to identify and categorize missing teeth by ethnicity and gender. Data analysis was conducted with Chi-square or Fisher’s exact test, with a two-sided significance level of 0.05. An overall prevalence …
A Prospective Randomized Clinical Trial To Compare Side Access Mucosal Releasing Incision (Samri) And Sulcular Tunnel Access And Root Coverage Procedures With Coronally Advanced Flap And Acellular Dermal Matrix (Adm) To Treat Teeth With Gingival Recession And Lack Of Adequate Keratinized Tissue. A Pilot Study, Karen Younghee Jo
All ETDs from UAB
Aims. The primary aim of this randomized, blinded, controlled clinical trial was to compare clinical and patient-centered outcomes obtained following soft tissue grafting utilizing the Side Access Mucosal Releasing Incision (SAMRI) or Sulcular Tunnel Access (STA) procedures with acellular dermal matrix (ADM) and coronal flap advancement to treat Miller Class I and II recession defects on single rooted teeth. Methods. Five patients and eight recession defect sites with Miller Class I or II gingival recession and £ 2mm of keratinized tissue at each site were randomly divided into two groups (A: SAMRI, B: STA) and were treated and evaluated for …
Clinical Decision-Making: A Survey On The Influence Of Specialty And Experience In Treatment Planning Of Multidisciplinary Cases, Rawan Oueis
All ETDs from UAB
Objective: to evaluate the effect of specialization and experience on treatment planning multidisciplinary cases. Materials and Methods: A survey presenting 7 clinical scenarios and their potential treatment plans was designed and disseminated electronically to five groups of dentists (general dentists, endodontists, prosthodontists, orthodontists, periodontists). 509 responses were collected and analyzed for distribution and levels of agreement. Results: A moderate kappa was found (k=0.4-0.6) between endodontists and periodontists and within endodontists. There was no agreement on the type of restorations that are used between different specialties and within specialties of different years of experience. Conclusion: Specialists and general dentists use a …
Comparison Of The Condyle-Fossa Relationship And Resorption Between Patients With And Without Juvenile Idiopathic Arthritis (Jia): A Retrospective Three-Dimensional Cone-Beam Computed Tomography Study, Ahmet Arif Celebi
All ETDs from UAB
Introduction: The most common disease in pediatric rheumatology is juvenile idiopathic arthritis (JIA). JIA is considered to be an autoimmune disease with an onset before the age of 16. The temporal mandibular joint (TMJ) has been reported to be involved in up to 87% of patients with JIA. Even though much research has been conducted on JIA, limited research has studied to understand its effect on the condyle-fossa relationship and to evaluate resorption amount on condyle by using a scoring system. Aim: The purpose of this study was (1) to evaluate the anatomical features of the glenoid fossa, (2) to …
An Evaluation Of The In Vitro Antibacterial, Biocompatibility, And Mineralization Properties Of Six Calcium Silicate-Based Pulp Capping Materials, Taimy Cruz Hondares
An Evaluation Of The In Vitro Antibacterial, Biocompatibility, And Mineralization Properties Of Six Calcium Silicate-Based Pulp Capping Materials, Taimy Cruz Hondares
All ETDs from UAB
Purpose: The purpose of this study was to evaluate the antibacterial activity, biocompatibility, and mineralization-inducing potential of calcium silicate-based pulp capping materials. Methods: Six contemporary calcium silicate-based pulp capping materials were compared in this study, including ProRoot MTA, MTA Angelus, Biodentine, EndoSequence, NeoMTA 2 and NeoPutty. The antibacterial effects of these materials against Streptococcus mutans UA159 and Enterococcus faecalis ATCC 29212 were determined by the agar-diffusion assay and the direct culture test. The biocompatibility and mineralization-inducing potential of these materials in preodontoblastic 17IIA11 cells were compared by the MTT assay and by evaluating alkaline phosphatase activity and calcium deposits, respectively. …
Optimal Antero-Posterior Position Of The Maxillary Central Incisors And Its Relationship To The Forehead In Adult Hispanic Females, Balraj Bains
All ETDs from UAB
Objective: The objective of this study is to investigate the relationship of forehead inclination to anteroposterior position (AP) of the maxillary central incisors in adult Hispanic females. Materials and Methods: 70 participants were recruited for this study and smiling profile photographs were taken. All images were deidentified and placed in standardized dimension of 7.5” by 6.5”, which were then added to a PowerPoint to be evaluated by a judging panel. 24 Adult Hispanic Females (AHF) made up the control group and were seen to have an optimal incisor AP position. 46 AHF were in the study group and were judged …
Evaluation Of Repair Strength Of Conventional, Milled, And Printed Resin Provisional Crown Materials With Different Surface Treatments And Repair Resins, Bright Jesuk Chang
Evaluation Of Repair Strength Of Conventional, Milled, And Printed Resin Provisional Crown Materials With Different Surface Treatments And Repair Resins, Bright Jesuk Chang
All ETDs from UAB
Statement of Problem: Provisional (also known as interim or transitional) restorations are important in fixed prosthodontics to evaluate long-term esthetics, phonetics, and function while protecting the tooth preparation from bacterial infiltration and maintaining periodontal health. Recent advances in CAD/CAM technologies have allowed these restorations to be either milled or printed. However, there is a lack of literature regarding the repair and reline of these milled and/or printed restorations. Purpose: To evaluate the repair strength of conventional, milled, and printed resin provisional crown materials with different surface treatments and repair resins. Materials and Methods: This in vitro study examined the shear …
Effect Of Saliva Contamination On Crown Retention Strengths Of Resin And Rmgi Cements, Bushra Nizami
Effect Of Saliva Contamination On Crown Retention Strengths Of Resin And Rmgi Cements, Bushra Nizami
All ETDs from UAB
Background: The most common contaminant in the oral cavity is saliva. Many studies have shown that contamination with saliva negatively affects the strength of the resin-dentin bond. A literature review by Nair et al reported that 64.6% of studies on the topic show a detrimental effect of salivary contamination on adhesive materials. No published studies were found that thoroughly studied the effects of saliva contamination on RMGIs and resin cements with regards to crown retention rates. Objective: To study the effect of salivary contamination on crown retention strengths of RMGI and resin cements at various stages of bonding and in …
The Effect Of Maxillary Sinus Anatomical Variations, Surgical Considerations, And Patient Factors On Volumetric Changes Following Lateral Wall Sinus Floor Elevation Technique For Up To 8 Years, Mengyi Shi
All ETDs from UAB
jectives: The aim of this retrospective study is to assess the long-term dimensional stability, or shrinkage, of the lateral window sinus grafts using cone beam computed tomography scans (CBCT) and radiographic software. Material and Methods: All patients from UAB Periodontal Graduate Clinic with available records of sinus augmentation via the lateral window approach with delayed implant placement between 2014 and 2019 were screened for having two follow up CBCT scans of diagnostic quality. The first scan must be completed within 6-9 months of lateral window sinus floor elevation (LWSFE) and prior to implant placement. The second CBCT must be taken …
A Comparison Of Growth Factor Release Between Platelet Rich Fibrin And Recombinant Human Platelet Derived Growth Factor Bb (Rhpdgf-Bb) And Beta-Tricalcium Phosphate: An In Vitro Analysis, Maggie Ann Misch
All ETDs from UAB
Patients presenting with significant alveolar bone loss can pose challenges for the clinician. Traditional bone augmentation techniques may be inadequate in achieving necessary gains to restore missing teeth with dental implants. The adjunctive use of growth factors may accelerate the healing process and enhance tissue regeneration. GEM21S is a product that includes a recombinant growth factor approved by the Federal Drug Administration for oral surgery. It is delivered as a two-component system: 1) recombinant human platelet-derived growth factor-BB (rhPDGF-BB) and 2) betatricalcium phosphate (β-TCP).[1] The research on GEM 21S for ridge augmentation is mostly limited to case studies.[2- 4] Biologically, …
Effect Of Etch Time On Sbs Of Machinable Lithium Disilicate Glass Ceramics Using Variolink Esthetic Lc, Mayur Chandrakant Nayee
Effect Of Etch Time On Sbs Of Machinable Lithium Disilicate Glass Ceramics Using Variolink Esthetic Lc, Mayur Chandrakant Nayee
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The purpose of this study is to measure the shear bond strength between dental cement and four different machinable, lithium disilicate glass ceramics, under varied etch time with hydrofluoric acid. Ten specimens each of 4 different machinable blocks of lithium disilicate were mounted in cylinders of pink acrylic resin. Each specimen was subjected to etching with hydrofluoric acid, rinsing with water from an air / water nozzle, drying with compressed air, application of a silane primer (Monobond Plus, Ivoclar Vivadent) for at least 60 seconds, then mounted in an Ultradent jig and Variolink Esthetic LC (Ivoclar Vivadent) cement extruded through …