keyword
https://read.qxmd.com/read/38349847/effect-of-zirconia-thickness-cement-color-and-titanium-implant-abutment-surface-treatment-type-on-the-esthetic-outcomes-of-high-translucency-monolithic-zirconia
#21
JOURNAL ARTICLE
Chayanan Sirawuttipong, Mali Palanuwech
PURPOSE: To investigate the esthetic outcomes based on the color differences in zirconia of varying thickness, resin cement color, and types of titanium implant surface treatments. MATERIALS AND METHODS: Twenty-eight HTMZ specimens were arranged into four groups based on zirconia thickness: 1.0, 1.5, 2.0, and 2.5 mm (n=7). Each group was tested using two resin cement colors (n=7) (clear and opaque) in combination with six surface-treated titanium groups (n=7): untreated titanium (UT), anodization (AN), 50-μm alumina airborne-particle abrasion followed by AN (SBAN), AN followed by 50-μm alumina airborne-particle abrasion (ANSB), 95% hydrofluoric acid followed by AN (HFAN), and AN followed by 95% hydrofluoric acid (ANHF) for the 48 experimental groups, and using composite resin (n=7) (A2D) for the four control groups...
February 13, 2024: International Journal of Oral & Maxillofacial Implants
https://read.qxmd.com/read/38342643/influence-of-glazing-and-aging-on-the-marginal-axial-axio-occlusal-and-occlusal-fit-of-3-unit-monolithic-zirconia-restorations-fabricated-using-additive-and-subtractive-techniques
#22
JOURNAL ARTICLE
Dilem Toksoy, Özay Önöral
STATEMENT OF PROBLEM: Studies are sparse on how glazing and aging influence the fit of additively fabricated monolithic zirconia restorations. PURPOSE: The purpose of this in vitro study was to assess the effect of glazing and aging on the fit of 3-unit monolithic zirconia restorations fabricated using different techniques. MATERIAL AND METHODS: A total of 32 monolithic zirconia restorations were fabricated for a typodont model by using 4 distinct techniques (subtractive fabrication [SF], stereolithography [SLA], digital light processing [DLP], and lithography-based ceramic manufacturing [LCM])...
February 10, 2024: Journal of Prosthetic Dentistry
https://read.qxmd.com/read/38310349/factors-influencing-dentists-choice-of-restorative-materials-for-single-tooth-crowns-a-survey-among-saudi-practitioners
#23
JOURNAL ARTICLE
Ali Robaian, Nawaf Munawir Alotaibi, Aljowhara Khaled Allaboon, Dana Saleh AlTuwaijri, Abdullah Fahad Aljarallah, Rola Salman Alshehri, Aljawharah Ali Alabsi, Mubashir Baig Mirza, Mohammed M Al Moaleem
BACKGROUND Material selection is crucial in restorative dentistry, influenced by aesthetics, material properties, and tooth location. This understanding is key for advancing dental practices and patient outcomes. The present study aimed to assess dentists' preferences for restorative materials in single-tooth crowns (SC) and how abutment tooth location and preparation margins influence these choices. MATERIAL AND METHODS A web-based pre-validated questionnaire survey was conducted among 811 actively practicing dentists in Saudi Arabia...
February 4, 2024: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://read.qxmd.com/read/38284942/immediate-implant-placement-with-soft-tissue-grafting-and-an-ultra-translucent-zirconia-crown
#24
JOURNAL ARTICLE
Jose Villalobos-Tinoco, Carlos Alberto Jurado, Daniel Alejandro Montalvan-Aguilar, Akimasa Tsujimoto
OBJECTIVES: The present case report describes the atraumatic extraction of a primary maxillary right canine followed by immediate implant placement with a customized zirconia abutment and monolithic ultra-translucent zirconia (5Y-PSZ) crown. CLINICAL CONSIDERATIONS: A 31-year-old patient presented to the clinic with the primary concern of mobility and gingival inflammation around the maxillary right canine. After clinical evaluation, the tooth was found to be a primary retained tooth that presented grade 3 mobility and gingival inflammation...
January 29, 2024: International Journal of Esthetic Dentistry
https://read.qxmd.com/read/38263560/comparison-of-the-effect-of-zirconia-and-titanium-abutments-on-peri-implant-hard-and-soft-tissues
#25
JOURNAL ARTICLE
Sahil Luthra, Pallavi Sirana, Neeta Pasricha, Gaurav Issar, Neha Singla
AIM: The primary objective of this research was to assess and compare the impact of customized zirconia (Zr) and titanium (Ti) abutments, placed on early loaded dental implants, on both hard tissue (as measured crestal bone level) and soft tissue (as assessed by sulcular bleeding index [SBI], probing depth [PD], and Pink Esthetic Score [PES]), through clinical and radiographic evaluation. SETTINGS AND DESIGN: This research involved a sample of 15 patients who had partially dentulous mandibular arch...
January 1, 2024: Journal of Indian Prosthodontic Society
https://read.qxmd.com/read/38263555/evaluation-of-marginal-bone-level-technical-and-biological-complications-between-screw-retained-and-cement-retained-all-ceramic-implant-supported-crowns-on-zirconia-abutment-a-systematic-review-and-meta-analysis
#26
JOURNAL ARTICLE
Shruti S Potdukhe, Janani M Iyer, Jyoti B Nadgere
PURPOSE: The purpose of this study was to evaluate the difference in marginal bone level, technical and biological complications between screw-retained and cemented all-ceramic implant-supported crowns fabricated on zirconia abutment at different follow-up periods. MATERIALS AND METHODS: Independent search was conducted in Cochrane Library, EBSCO, and PubMed/PubMed Central/MEDLINE databases and the Google Scholar search engine for prospective studies and randomized controlled trials published between January 2014 and June 2023 evaluating the marginal bone level, technical and biological complications between screw-retained and cemented all-ceramic implant-supported crowns fabricated on zirconia abutment...
January 1, 2024: Journal of Indian Prosthodontic Society
https://read.qxmd.com/read/38256565/clinical-and-radiographic-outcomes-of-single-implant-supported-zirconia-crowns-following-a-digital-and-conventional-workflow-four-year-follow-up-of-a-randomized-controlled-clinical-trial
#27
JOURNAL ARTICLE
Florian Beck, Lana Zupancic Cepic, Stefan Lettner, Andreas Moritz, Christian Ulm, Werner Zechner, Andreas Schedle
PURPOSE: This study aimed to compare the clinical and radiographic outcomes of single posterior screw-retained monolithic implant crowns following a digital and conventional workflow and to report on the survival/complication rate after a mean 4-year follow-up. MATERIALS AND METHODS: Thirty patients with a single posterior tooth missing were rehabilitated with a bone-level implant. After a healing period of ≥3 months, they were subjected to both a digital and conventional workflow to fabricate two screw-retained monolithic implant crowns...
January 12, 2024: Journal of Clinical Medicine
https://read.qxmd.com/read/38248676/an-in-vivo-investigation-of-non-metallic-vs-metallic-hand-scalers-on-zirconia-implant-supported-crowns-a-year-long-analysis-of-peri-implant-maintenance
#28
JOURNAL ARTICLE
Dayna L Roemermann, Reem Atout, Igor Pesun, Anastasia Kelekis-Cholakis, Chrysi Stavropoulou, Stefan N Renvert, Rodrigo França
This study examined whether the degree of abutment surface modification that may occur with regular periodontal instrumentation has a clinical impact in terms of increased plaque accumulation and increased peri-implant tissue inflammation on zirconia implant abutments. Thirteen patients who had zirconia implant crowns were recruited in this randomized clinical trial. Each patient acted as their control and had either the buccal or lingual surface of their screw-retained implant restoration scaled with a metallic scaler and the other surface with a non-metallic scaler at 3, 6, 9, and 12 months...
December 23, 2023: Journal of Functional Biomaterials
https://read.qxmd.com/read/38244420/load-bearing-capacity-of-3-unit-screw-retained-implant-supported-fixed-dental-prostheses-with-a-mesial-and-distal-cantilever-on-a-single-implant-a-comparative-in-vitro-study
#29
JOURNAL ARTICLE
Pedro Molinero-Mourelle, Samir Abou-Ayash, Urs Brägger, Martin Schimmel, Mutlu Özcan, Burak Yilmaz, Ramona Buser, Nadin Al-Haj Husain
OBJECTIVES: To assess the mechanical durability of monolithic zirconia implant-supported fixed dental prostheses (iFDP) design on one implant, with a distal and a mesial extension cantilever bonded to a titanium base compared to established designs on two implants. MATERIALS AND METHODS: Roxolid Tissue level (TL), and tissue level x (TLX) implants were used to manufacture screw-retained 3-unit iFDPs (n = 60, n = 10 per group), with following configurations (X: Cantilever; I: Implant, T: Test group, C: Control group): T1: X-I-X (TL); T2: X-I-X (TLX); T3: I-I-X (TL); T4: I-I-X (TLX); C1: I-X-I (TL); C2: I-X-I (TLX)...
January 11, 2024: Journal of the Mechanical Behavior of Biomedical Materials
https://read.qxmd.com/read/38238270/comparison-of-fracture-resistance-between-implant-supported-bis-acryl-interim-3-unit-fdps-using-six-different-strengthening-mechanisms-an-in-vitro-study
#30
JOURNAL ARTICLE
Mohammad Rayyan, Mohamed Sayed, Ali Mohammad Hujeiry, Ghada Ayash
AIM: To investigate six different strengthening mechanisms for three-unit implant-supported provisional restorations. MATERIALS AND METHODS: Six techniques of provisional fixed prostheses (PFP) reinforcement were investigated and were assigned to different groups ( n = 10): group (ZP) zirconia powder, group (SK8) silk thread wrapped as a figure-of-8 pattern around middle third of abutment, group (RC8) size 00 retraction cord wrapped as a figure-of-8 pattern around middle third of abutment, group (RF8) Resin impregnated glass fiber ribbon wrapped as a figure-of-8 pattern around abutment, group (KV8) Kevlar 29 cord wrapped as a figure-of-8 pattern around middle third of abutment, group (KV) Kevlar 29 strands incorporated in resin mix...
November 1, 2023: Journal of Contemporary Dental Practice
https://read.qxmd.com/read/38231917/a-comparison-of-failure-loads-for-polycrystalline-zirconia-ceramics-with-varying-amounts-of-yttria-glass-ceramics-and-polymers-in-two-different-test-conditions
#31
JOURNAL ARTICLE
Tariq F Alghazzawi
It is unclear how zirconia dental crowns with different yttria compositions will perform clinically, and how they will compare with crowns made of glass-ceramics and polymers. The present objective was to determine failure loads of crowns and discs made of glass ceramics or polymers as compared to yttria-partially stabilized zirconia (Y-PSZ) crowns and discs with varying yttria concentrations. Crowns of zirconia (Cercon XT, Katana UTML, BruxZir Anterior), glass ceramic (Celtra press, IPS e.max press, Lisi press), and polymeric materials (Trilor, Juvora, Pekkton) were fabricated and cemented to epoxy abutments...
November 23, 2023: Polymers
https://read.qxmd.com/read/38221600/initial-damage-and-failure-load-of-zirconia-ceramic-and-metal-ceramic-posterior-cantilever-fixed-partial-dentures
#32
JOURNAL ARTICLE
Wolfgang Bömicke, Philipp Boisserée, Peter Rammelsberg, Stefan Rues
OBJECTIVES: The aim of this study was to compare failure load and initial damage in monolithic, partially veneered, and completely veneered (translucent) zirconia cantilevered fixed partial dentures (CFPDs), as well as completely veneered metal-ceramic CFPDs under different support and loading configurations. MATERIALS AND METHODS: Eight test groups with anatomically congruent CFPDs (n = 8/group) were fabricated, differing in CFPD material/support structure/loading direction (load applied via steel ball (Ø 6 mm) 3 mm from the distal end of the pontic for axial loading with a 2-point contact on the inner cusp ridges of the buccal and oral cusps and 1...
January 15, 2024: Clinical Oral Investigations
https://read.qxmd.com/read/38220160/clinical-performance-of-laminate-veneers-a-review-of-the-literature
#33
JOURNAL ARTICLE
Futoshi Komine, Mika Furuchi, Junichi Honda, Kei Kubochi, Hiroki Takata
PURPOSE: This narrative review aimed to survey the clinical outcomes of laminate veneers (LVs), including their survival and success rates. STUDY SELECTION: An electronic search of MEDLINE/PubMed, Web of Science, Cochrane Library, and Google Scholar from 2000 to April 2023 was conducted using the keywords "laminate" OR "veneer" OR "porcelain" OR "feldspathic" OR "lithium disilicate" OR "composite resin" OR "zirconia" OR "survival" OR "success." Case reports, case series, reviews, abstracts, in vitro studies, and observational studies were excluded...
January 12, 2024: Journal of Prosthodontic Research
https://read.qxmd.com/read/38205291/the-optimal-design-and-three-dimensional-finite-element-analysis-of-cad-cam-integrated-roach-attachment
#34
JOURNAL ARTICLE
Yun Huang, Jingrong Wang, Liqing Zhu, Liren Liu, Shanshan Gao
OBJECTIVES: To investigate the effect of different designs of movable parts and prosthetic materials on the stress distribution of supporting tissues in mandibular free end dentition defects using three-dimensional finite element analysis of digital Roach attachments. MATERIAL AND METHODS: A 3D model of a patient with Kennedy class I mandibular edentulous conditions was generated, and twelve prosthesis models were applied, combining two designs of removable parts and six types of CAD/CAM restorative materials with different elastic modulus (conventional zirconia, ultra-translucent zirconia, Polyetheretherketone (PEEK), Lithium disilicate, Nanoceramic resin, and resin composite (Paradigm MZ100, 3 M ESPE))...
January 15, 2024: Heliyon
https://read.qxmd.com/read/38184397/retrieval-of-cement-retained-zirconia-implant-supported-crowns-with-an-er-cr-ysgg-laser
#35
JOURNAL ARTICLE
Ionut Sebastian Viski, Jason D Lee, Rebecca Scialabba, Sang J Lee
STATEMENT OF PROBLEM: Cement-retained implant-supported crowns can be challenging to retrieve from the abutment once technical or biological issues arise. Removal traditionally requires sectioning the crown with rotary instruments, which causes irreversible damage to the crown and potential damage to the periodontal apparatus stabilizing the implant. PURPOSE: The purpose of this in vitro study was to evaluate an erbium, chromium-doped yttrium, scandium, gallium, and garnet (Er,Cr:YSGG) laser as a minimally invasive alternative for the retrieval of zirconia implant-supported crowns from titanium abutments...
January 5, 2024: Journal of Prosthetic Dentistry
https://read.qxmd.com/read/38173277/implant-supported-single-all-ceramic-crowns-made-from-prefabricated-stock-or-individualized-cad-cam-zirconia-abutments-a-5%C3%A2-year-randomized-clinical-trial
#36
JOURNAL ARTICLE
Julia-Gabriela Wittneben, Samir Abou-Ayash, Ardian Gashi, Daniel Buser, Urs Belser, Urs Brägger, Irena Sailer, Jelena Gavric
AIM: The aim of this randomized, prospective, and clinical multicenter study was to compare the overall clinical performance of two restorative options over a 5-year period: individualized CAD/CAM abutments veneered with a hand-layered ceramic, and prefabricated zirconium dioxide abutments veneered with press ceramic and inserted into a single edentulous gap in the anterior maxilla. MATERIALS AND METHODS: Forty subjects were recruited from two universities: 20 from the University of XX and 20 from the University of XY...
January 3, 2024: Journal of Esthetic and Restorative Dentistry
https://read.qxmd.com/read/38164308/esthetic-solutions-with-layered-zirconia-prostheses-a-case-report
#37
Mithilesh M Dhamande, Arushi Beri, Anjali Bhoyar, Surekha A Dubey, Seema Sathe
To meet the challenges of rehabilitating anterior teeth and achieving natural-looking restorations, it is essential to address issues such as improper shape, size, irregular gingival contour, and unaesthetic shades. The increasing demand for aesthetically pleasing and metal-free solutions has popularized materials like dental zirconia, offering optimal aesthetics and desirable mechanical properties. Within this context, a case report highlights clinical experiences with layered zirconia fixed dental prostheses designed specifically for anterior teeth...
December 2023: Curēus
https://read.qxmd.com/read/38148601/a-comparative-analysis-of-marginal-adaptation-values-between-lithium-disilicate-glass-ceramics-and-zirconia-reinforced-lithium-silicate-endocrowns-a-systematic-review-of-in-vitro-studies
#38
JOURNAL ARTICLE
Ghadeer S Alwadai, Mohammed M Al Moaleem, Arwa A Daghrery, Nassreen H Albar, Abdulelah A Daghriri, Manar M AlGhamdi, Sana E Ageel, Faisal A A Daghreeri, Taha M A Al-Amri, Waseem H Aridhi, Raid A Almnea, Khalid D Alhendi
This systematic review aimed to identify and analyze in vitro studies on the marginal adaptation values of computer-aided-design/computer-aided-manufacturing (CAD/CAM) and heat-pressed lithium disilicate glass ceramics and zirconia-reinforced lithium silicates and endocrown restorations. A full literature search was conducted in Web of Science, PubMed/Medline, EMBASE, Scopus, Cochrane Library, Google Scholar, and ProQuest electronic databases. The following keywords: endocrown [(marginal adaption) or (marginal fit) or internal fitting)], endocrown [(molar(s)) or (premolar(s) or (posterior teeth) or (maxillary arch) or (mandibular arch)] and ceramic materials as [(lithium disilicate glass ceramic CAD/CAM) or (zirconia) or (heat-press)] were used...
December 27, 2023: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://read.qxmd.com/read/38133096/microleakage-of-chairside-moulded-3d-printed-and-milled-provisional-restorations-using-a-curve-fit-approach
#39
JOURNAL ARTICLE
Keshia Reyes, Polina Plaksina, Abdullah Barazanchi, Wendy-Ann Jansen van Vuuren, J Neil Waddell, Kai Chun Li
The purpose of this study was to evaluate and measure the microleakage inhibiting quality of provisional restorations manufactured using computer-aided manufacturing, 3D printing, and chairside molded provisional restorative materials. Fifteen provisional restorations each from 3D printed, milled, and chairside molded were manufactured. All restorations were cemented onto sintered zirconia abutment dies and adhered with zinc-oxide non-eugenol temporary cement. Artificial aging was conducted by thermocycling for 800 cycles to simulate 1 month of clinical use...
2023: Brazilian Dental Journal
https://read.qxmd.com/read/38133088/biomechanical-behavior-of-different-designs-of-hybrid-abutment-restoration-on-the-posterior-crown-a-finite-element-analysis
#40
JOURNAL ARTICLE
Adna Alves Rocha, Marco Aurélio de Carvalho, Dimorvan Bordin, Altair Antoninha Del Bel Cury, Priscilla Cardoso Lazari-Carvalho
This study aimed to evaluate the influence of material and crown design on the biomechanical behavior of implant-supported crowns with hybrid abutment (HA) through three-dimensional (3D) finite element analysis. The study factors were the type of material used as the mesostructure or crown (zirconia, lithium disilicate, and hybrid ceramic) and the crown design cemented to the titanium base (mesostructure cemented to the titanium base and a crown cemented on it (HaC); hybrid crown-abutment, the abutment and crown are manufactured as a single piece and cemented to the titanium base (HC); monolithic crown cemented on the titanium base and screwed to the implant (CS); and monolithic crown cemented on the titanium base (CC)...
2023: Brazilian Dental Journal
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