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A fully digital workflow to design anterior guidance for an implant-supported single crown using a modified patient-specific motion technique J. Prosthet. Dent. (IF 4.6) Pub Date : 2024-03-15 Huimin Wang DDS, Liang Shao DDS, Jiao Sun DDS, Shimin Wang MDS, Qian Ding DDS, Lei Zhang DDS PhD
Current methods for designing anterior guidance of anterior fixed prostheses are either complicated or lack accuracy. The article describes a fully digital workflow to design individualized anterior guidance of an implant-supported single crown by using a modified patient-specific motion technique. The technique aims to optimize the digital occlusal design workflow, thereby improving the occlusal fit
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Comparison of the positional accuracy of robotic guided dental implant placement with static guided and dynamic navigation systems: A systematic review and meta-analysis J. Prosthet. Dent. (IF 4.6) Pub Date : 2024-03-15 Madiha Khan BDS, Faizan Javed BDS FCPS, Zainab Haji BDS, Robia Ghafoor BDS FCPS
The development of robotic computer assisted implant surgery (r-CAIS) offers advantages, but how the positional accuracy of r-CAIS compares with other forms of guided implant surgery remains unclear. The purpose of this systematic review and meta-analysis was to evaluate the positional accuracy of r-CAIS and to compare the positional accuracy of r-CAIS with s-CAIS and -CAIS. Five databases were systematically
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Automated scoring and augmented reality visualization software program for evaluating tooth preparations J. Prosthet. Dent. (IF 4.6) Pub Date : 2024-03-14 Hang-Nga Mai DDS MS PhD, Hien Chi Ngo BDS MDS PhD, Seok-Hwan Cho DDS MS, Du-Hyeong Lee DDS MS PhD
Tooth preparation is an essential part of prosthetic dentistry; however, traditional evaluation methods involve subjective visual inspection that is prone to examiner variability. The purpose of this study was to investigate a newly developed automated scoring and augmented reality (ASAR) visualization software program for evaluating tooth preparations. A total of 122 tooth models (61 anterior and
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Mechanical properties of conventional versus microwave-polymerized denture base acrylic resins J. Prosthet. Dent. (IF 4.6) Pub Date : 2024-03-13 Rebecca E. Mayall DDS MDS, Audrey M. Selecman DDS MDS, Brian R. Morrow MS, Angela Gullard DMD PhD MDS, Antheunis Versluis PhD
New denture base acrylic resins have been introduced that are specifically formulated for microwave polymerization. Microwave polymerization is a time-efficient procedure, but few studies have evaluated how these new acrylic resin formulations compare with conventionally processed acrylic resins. The purpose of this in vitro study was to compare the stiffness and strength of denture base acrylic resins
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Comparisons of analog and digital methods to produce an accurate trial restoration J. Prosthet. Dent. (IF 4.6) Pub Date : 2024-03-13 Yun-Shan Koh BDS MClinDent M Pros, Noland Naidoo BChD PDD MDent, Haralampos Petridis DDS MS Cert Prosthodont PhD FHEA
A trial restoration is an important diagnostic tool that can be fabricated through analog or digital pathways. Digital workflows may have improved accuracy, but this is yet to be demonstrated conclusively. The purpose of this in vitro study was to compare the dimensional accuracy of trial restorations produced by different analog (molded) and digital (milled and 3D printed) methods. Parameters studied
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Clinical performance and patient-related outcome measures of digitally fabricated complete dentures: A systematic review and meta-analysis J. Prosthet. Dent. (IF 4.6) Pub Date : 2024-03-13 Maria Eduarda Lemos Avelino DDS MSc, Rayanna Thayse Florêncio Costa DDS MSc, Taciana Emília Leite Vila-Nova DDS MSc, Belmiro Cavalcanti do Egito Vasconcelos DDS MSc PhD, Eduardo Piza Pellizzer DDS MSc PhD, Sandra Lúcia Dantas Moraes DDS MSc PhD
The demand to streamline workflow while increasing patient comfort and satisfaction in the manufacturing of removable complete dentures (CDs) is growing, and computer-aided design and computer-aided manufacturing (CAD-CAM) technology has gained prominence. However, a systematic review and meta-analysis of the clinical performance and patient-related outcome measures (PROMs) of digitally fabricated
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Influence of CAD-CAM milling strategies on the outcome of indirect restorations: A scoping review J. Prosthet. Dent. (IF 4.6) Pub Date : 2024-03-12 Rafaela Oliveira Pilecco DDS MSciD, Renan Vaz Machry DDS MSciD PhD, Andrea Baldi DDS MSciD PhD, João Paulo Mendes Tribst DDS MSciD PhD, Rafael Sarkis-Onofre DDS MSciD PhD, Luiz Felipe Valandro DDS MSciD PhD, Cornelis Johannes Kleverlaan PhD, Nicola Scotti DDS MSciD PhD, Gabriel Kalil Rocha Pereira DDS MSciD PhD
The influence of computer-aided manufacturing (CAM) parameters and settings on the outcomes of milled indirect restorations is poorly understood. The purpose of this scoping review was to summarize the current CAM systems, parameters, and setting changes, and their effects on different outcomes of milled indirect restorations and aspects related to their manufacture. The protocol of this review is
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Effect of a calibration aid and the intraoral scanner on the registration of a partially edentulous maxilla: An in vitro study J. Prosthet. Dent. (IF 4.6) Pub Date : 2024-03-12 Sophia Boehm Dr med dent, Stefan Rues Dipl-Ing, Alexandra Balzer, Peter Rammelsberg Prof Dr med dent, Moritz Waldecker PD Dr med dent
Precise data are a prerequisite for accurately fitting restorations. Therefore, intraoral scanners have to be reliable. Data on differences between the same model of intraoral scanning systems are lacking. This in vitro study evaluated differences in the scanning accuracy of a partially edentulous maxilla between combinations of new intraoral scanners of a single model from the same manufacturer (Primescan;
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Influence of a specially designed geometric device and modified scan bodies on the accuracy of a maxillary complete arch digital implant scan: An in vitro study J. Prosthet. Dent. (IF 4.6) Pub Date : 2024-03-12 Haidy Anwar BDS, Amir Azer BDS MSc PhD, Rewaa G. AboElHassan BDS MSc PhD
Capturing accurate complete arch digital implant scans remains a challenging process because of the lack of recognizable anatomic landmarks. The effect of modified scan bodies (SBs) on improving scanning accuracy is unclear. The purpose of this in vitro study was to evaluate and compare the accuracy of a maxillary complete arch digital implant scan when using a specially designed geometric device with
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Dental implant placement with immersive technologies: A preliminary clinical report of augmented and mixed reality applications J. Prosthet. Dent. (IF 4.6) Pub Date : 2024-03-12 Marcus Engelschalk DMD, Khaled Q. Al Hamad BDS MSc, Roberto Mangano BS MS, Ralf Smeets MD DDS PhD, Tamás F. Molnar Dsc PhD
A preliminary clinical report of implant placements with 2 immersive reality technologies is described: augmented reality with head mounted display and mixed reality with a tablet PC. Both immersive realities are promising and could facilitate innovative dental applications. However, mixed reality requires further development for clinical optimization.
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Preparation of ultrathin translucent zirconia laminate veneers using 3D printing reduction guides J. Prosthet. Dent. (IF 4.6) Pub Date : 2024-03-12 Mahinour Yousry BDS MS, Ihab Hammad BDS MS DSc, Mohamed El Halawani BDS MS PhD, Moustafa Aboushelib DDS MS PhD
Minimizing and controlling the amount of tooth reduction during the preparation of ultrathin laminate veneers is a challenge for minimally invasive dentistry. The use of reduction guides is advised to reach the optimal space required for the definitive restoration without excessive reduction. The digital production of a reduction guide used to control tooth preparation for ultrathin laminate veneers
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Restoration of endodontically treated teeth: A cost-effectiveness analysis of an endocrown versus a complete crown J. Prosthet. Dent. (IF 4.6) Pub Date : 2024-03-12 Nighat Naved BDS, Asif R. Khowaja PhD, Fahad Umer BDS FCPS FICOI FHEA
Endocrowns have been proposed as an alternative to post-and-core retained complete crowns for structurally compromised endodontically treated teeth. However, an analysis of their cost-effectiveness is lacking. The purpose of this simulation study was to assess the cost-effectiveness of an endocrown versus a complete crown as a definitive restoration for structurally compromised endodontically treated
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Practical applications of robots in prosthodontics for tooth preparation and denture tooth arrangement: A scoping review J. Prosthet. Dent. (IF 4.6) Pub Date : 2024-03-12 Ahmed Yaseen Alqutaibi BDS MDSc PhD, Hatem Hazzaa Hamadallah BDS, Khalid N. Alturki BDS, Fadia Moharib Aljuhani BDS, Aseel Mohammed Aloufi BDS, Mohammed Ahmed Alghauli BDS MDSc
With the increasing interest in using robots in dentistry and the widespread dissemination of information on this topic and its applications, a comprehensive review of robot applications in prosthodontics is needed. The purpose of this scoping review was to assess the current status of prosthodontic robotic applications, their achievements to date, and the barriers hindering their broader adoption
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Obtaining more accurate complete arch implant digital scans with the aid of a geometric pattern: A dental technique J. Prosthet. Dent. (IF 4.6) Pub Date : 2024-03-11 Olatz Etxaniz BEng MSc, Xabier Amezua BEng MSc PhD, Mikel Jauregi BEng MSc PhD, Eneko Solaberrieta BEng MSc PhD
A technique to obtain more accurate complete arch implant digital scans and virtual casts is described. In order to obtain complete arch implant digital scans with greater accuracy, short-span intraoral digital scans are superimposed with the aid of a geometric pattern. Therefore, the technique takes advantage of the accuracy of intraoral scanners to obtain digital scans of reduced spans. Two virtual
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Feasibility of implant placement in healed mandibular molar sites: A retrospective cone beam computed tomography study J. Prosthet. Dent. (IF 4.6) Pub Date : 2024-03-11 Jianfeng He BD, Yudong Liu MD, Zhiyan Lin BD, Yongqi Li BD, Chengwei Li BD, Libin Zhou PhD
Implant placement in the mandibular molar sites plays a crucial role in the restoration of edentulous mandibles. However, the evaluation of bone quantity before implant surgery using cone beam computed tomography (CBCT) is lacking. The purpose of this clinical study was to evaluate CBCT images of edentulous patients to analyze the feasibility of implant placement in healed mandibular molar sites. The
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Microwave disinfection of facial silicone prostheses, Part 1: Color stability J. Prosthet. Dent. (IF 4.6) Pub Date : 2024-03-06 Penchanok Santhaveesuk DDS MSc, Pensiri Saenthaveesuk DDS MSD PhD, Julian Nathaniel Holland BS MS PhD, Sudarat Kiat-amnuay DDS MS
The choice of cleaning method is an important consideration for lengthening the serviceable time of facial prostheses as microbial organisms and biofilms could degrade facial prostheses and cause skin irritation. Whether microwave disinfection is a suitable cleaning method without degradation of the properties of a prosthesis is unclear. The purpose of this in vitro study was to measure the color stability
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In vitro damping and strain distribution for implant-supported crowns using 5 different CAD-CAM crowns and 3 different luting cements J. Prosthet. Dent. (IF 4.6) Pub Date : 2024-03-05 Charnikan Sukkasam DDS, Krid Kamonkhantikul DDS PhD, Woraporn Homsiang DDS PhD, Mansuang Arksornnukit DDS MS PhD
Dental implants are particularly susceptible to occlusal overloading because, unlike natural teeth, they lack a periodontal ligament to help absorb occlusal forces. However, studies evaluating the impact of different crown and luting materials on the damping behavior and strain distribution of implant-supported crowns are lacking. The purpose of this in vitro study was to investigate the damping behavior
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Identifying an optimal approach for the placement of pterygoid implants: A 3D finite element analysis J. Prosthet. Dent. (IF 4.6) Pub Date : 2024-03-04 Jun Chen MDS, Lingtong Bu DDS, Guangzhou Xu DDS PhD
A consensus on the optimal approach to the placement of pterygoid implants is lacking. The purpose of this finite element analysis study was to determine the optimal approach to the placement of pterygoid implants by comparing biomechanical behavior. An edentulous and moderately atrophic maxilla with the anatomic structure of the pterygomaxillary region was constructed. Complete arch restorations with
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Survival, complications, and patient-reported outcomes of endodontically treated teeth versus dental implant-supported prostheses: A systematic review J. Prosthet. Dent. (IF 4.6) Pub Date : 2024-03-04 Chanakarn Sinsareekul DDS Higher Grad Dip FRCDS, Phurit Saengthong-aram DDS, Nareudee Limpuangthip DDS PhD
Decision making for compromised teeth involving the choice between endodontic treatment and tooth extraction followed by an implant-supported prosthesis is challenging. However, systematic reviews examining studies using the same patients or clinical settings to provide conclusive evidence regarding the best approach are lacking. The purpose of this systematic review was to compare the survival rate
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Fabrication of digital complete dentures guided by facial scanning with a device for recording the maxillomandibular relation: A dental technique J. Prosthet. Dent. (IF 4.6) Pub Date : 2024-03-04 Lucas Cavalcante de Sousa DDS, Ana Larisse Carneiro Pereira DDS MSc, Anne Kaline Claudino Ribeiro DDS MSc, Adriana da Fonte Porto Carreiro DDS MSc PhD
This article describes a technique for the fabrication of digital complete dentures guided by facial scanning using an innovative device for maxillomandibular relation records. For this, a device was designed and 3-dimensionally (3D) printed to assist in the maxillomandibular record stage. Digital files of the diagnostic casts, jaw relation record, and facial images were superimposed, and the complete
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Complete mouth rehabilitation in a patient with condylar fracture malunion: A clinical report J. Prosthet. Dent. (IF 4.6) Pub Date : 2024-03-04 Sang-Ah Lee DDS MSD, Chan-Ho Park DDS MSD, Kyung-Ho Ko DDS MSD PhD, Chan-Jin Park DDS MSD PhD, Lee-Ra Cho DDS MSD PhD
Mandibular condyle fracture malunion and tooth loss can cause functional and esthetic problems. A patient with restricted mouth opening associated with muscle atrophy required prosthetic rehabilitation. Since the remaining teeth had a poor prognosis and the patient had difficulty adapting to the interim denture, complete mouth rehabilitation with implants was chosen. The implants were placed by using
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Effect of coffee thermocycling on the color and translucency of milled and 3D printed definitive restoration materials J. Prosthet. Dent. (IF 4.6) Pub Date : 2024-03-04 Simge Taşın DDS, Artur Ismatullaev DDS
Research on the color and translucency properties of 3-dimensionally (3D) printed definitive resins and the effect of coffee thermocycling on these properties is lacking. The purpose of this in vitro study was to investigate the effect of coffee thermocycling on the color and translucency parameters of the milled and 3D printed materials used for definitive restorations. Plate-shaped specimens (12×12×1
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Influence of connected and nonconnected calibrated frameworks on the accuracy of complete arch implant scans obtained by using four intraoral scanners, a desktop scanner, and a photogrammetry system J. Prosthet. Dent. (IF 4.6) Pub Date : 2024-03-04 Marta Revilla-León DDS MSD PhD, Abdul B. Barmak MD MSc EdD, Alejandro Lanis DDS MS, John C. Kois DMD MSD
Different techniques have been proposed for increasing the accuracy of complete arch implant scans obtained by using intraoral scanners (IOSs), including a calibrated metal framework (IOSFix); however, its accuracy remains uncertain. The purpose of this in vitro study was to compare the accuracy of complete arch scans obtained with connecting and non-connecting the implant scan bodies (ISBs) recorded
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Shear bond strength of adhesive cement to zirconia: Effect of added proportion of yttria for stabilization J. Prosthet. Dent. (IF 4.6) Pub Date : 2024-03-02 Mia Hansson MScDS, Martin Ågren MScDS MScMed
Zirconium dioxide (zirconia) cannot be etched in a clinical setting, but zirconia restorations with minimal to no micromechanical bonding are approved and widely used in contemporary dentistry. However, information on the shear bond strength of zirconia and adhesive cement, on the effect of an added proportion of yttria, and on the effect of aging is lacking. The purpose of this in vitro study was
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Effect of surface roughness and biofilm formation on the color properties of resin-infiltrated ceramic and lithium disilicate glass-ceramic CAD-CAM materials J. Prosthet. Dent. (IF 4.6) Pub Date : 2024-03-02 Sümeyra Topçu DDS, Neslihan Tekçe DDS PhD, Dilan Kopuz DDS, Eda Yazıcı Özcelik MS PhD, Fetiye Kolaylı DDS PhD, Safa Tuncer DDS PhD, Mustafa Demirci DDS PhD
Computer-aided design and computer-aided manufacturing (CAD-CAM) materials have become popular for dental restorations; however, which materials should be preferred in terms of surface properties after biofilm formation is unclear. The purpose of this in vitro study was to investigate the effect of biofilm formation on the discoloration properties of resin-infiltrated ceramic and glass ceramic CAD-CAM
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Effect of connector height and retainer occlusal thickness on the fracture resistance of posterior 4-unit monolithic 5Y-TZP fixed partial dentures after thermomechanical aging J. Prosthet. Dent. (IF 4.6) Pub Date : 2024-02-29 Yousef Khaled ElShamoty, Haneen Adnan Sadeqi, Mirza Rustum Baig
The connector height and retainer occlusal thickness of fixed partial dentures (FPDs) may affect restoration longevity. The purpose of this in vitro study was to determine and compare the fracture resistance of 4-unit monolithic 5% yttria tetragonal zirconia polycrystal (5Y-TZP) FPDs made with different connector heights and retainer occlusal thicknesses after thermomechanical aging. Forty test metal
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Mounting digital casts on a virtual articulator by using two-dimensional facial photographs with a facebow: A technique J. Prosthet. Dent. (IF 4.6) Pub Date : 2024-02-28 Luís Anes, Jorge André Cardoso, Luís Azevedo, Kevin Oliveira, Francisco Maligno
This technique uses 3 or 4 two-dimensional (2D) photographs, including a frontal headshot with a facebow and lip retractors, a profile headshot with a facebow and lip retractors on the right or left side, and a frontal headshot with a facebow during maximum smile without retractors. These 2D photographs are used to digitally mount casts on a virtual articulator.
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Comprehensive analysis of the maxillary esthetic zone for immediate implant placement using cone beam computed tomography: A study of 352 maxillary images J. Prosthet. Dent. (IF 4.6) Pub Date : 2024-02-28 Ahmed Yaseen Alqutaibi BDS MSc PhD, Hatem Hazzaa Hamadallah BDS, Abdulrahman Saad Almuzaini BDS, Aseel Mohammed Aloufi BDS, Raneem Ahmad Tarawah BDS, Abeer Almashraqi PhD, Esam Halboub PhD
Previous studies have examined the maxillary esthetic zone for immediate implant placement, but these studies had small sample sizes and did not investigate multiple parameters. The purpose of this cross-sectional study was to use cone beam computed tomography (CBCT) to evaluate the sagittal root position (SRP), alveolar bone concavity, labial bone perforation (LBP), and tooth-ridge angle in the maxillary
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Optical properties of recycled zirconia for dental applications J. Prosthet. Dent. (IF 4.6) Pub Date : 2024-02-28 Chen Su, Zhi-Cen Lu, Xiong Ji, Hao Yu
While waste zirconia can be recycled, whether the optical properties of recycled zirconia match those of commercially available zirconia is unclear. The purpose of this in vitro study was to evaluate the optical properties of recycled zirconia by assessing its color, translucency, and opalescence across different thicknesses and shades. Sixty specimens were prepared from 3 mol% yttria-stabilized tetragonal
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Improving the accuracy of complete arch implant digital scans by using auxiliary clips for intraoral scan bodies: A dental technique J. Prosthet. Dent. (IF 4.6) Pub Date : 2024-02-27 Olatz Etxaniz, Xabier Amezua, Mikel Jauregi, Eneko Solaberrieta
A technique to improve the accuracy of complete arch implant intraoral digital scans and the accuracy of their virtual casts is described. Obtaining accurate complete arch implant intraoral digital scans with an intraoral scanner is challenging because of the smooth and movable tissues of edentulous areas. The described technique uses auxiliary clips attached to intraoral scan bodies to cover interimplant
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Misfit simulation on implant-supported prostheses with different combinations of engaging and nonengaging titanium bases: Part 3: A radiographic evaluation J. Prosthet. Dent. (IF 4.6) Pub Date : 2024-02-27 Vygandas Rutkunas, Daniel Kules, Ingrida Mischitz, Sandra Huber, Marta Revilla-León, Christel Larsson, Martin Janda
The fit of implant-supported prostheses plays an important role in their mechanical and biological stability. Clinically, the prosthetic fit is typically assessed radiographically, but this method relies on the operator’s subjective evaluation. Whether available digital tools could optimize the evaluation of the prosthetic fit is uncertain. The purpose of this in vitro study was to evaluate the influence
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Enhancing the gingival contour of an anterior implant restoration by using a guided bone regeneration abutment J. Prosthet. Dent. (IF 4.6) Pub Date : 2024-02-26 Weimao Tang, Changhong Zheng, Lei Li
Deficiencies in the alveolar bone and surrounding gingiva can pose challenges in implant placement within the esthetic zone. This clinical report describes the reconstruction of gingival tissue contours through guided bone regeneration (GBR) in the anterior maxilla during implant placement by using a modified titanium abutment to maintain the osteogenic space adjacent to the gingival margin and implant
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Influence of post material and ferrule thickness on the fracture resistance of endodontically treated premolars: A laboratory study J. Prosthet. Dent. (IF 4.6) Pub Date : 2024-02-24 Abdulaziz Samran, Ahmed Wagdy Hashem, Shurouk Ali, Majed Al-Akhali, Sebastian Wille, Matthias Kern
The influence of the ferrule thickness and post materials on the fracture resistance of endodontically treated teeth remains unclear. The purpose of this laboratory study was to evaluate the influence of post material and ferrule thickness on the fracture resistance of endodontically treated mandibular premolars. Sixty-four extracted and endodontically treated mandibular first premolars were used and
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In vitro evaluation of shape-memory hydrogels for removable dental prostheses and optimization of phase-transition temperature for intraoral use J. Prosthet. Dent. (IF 4.6) Pub Date : 2024-02-21 Hiroaki Kakinuma, Shigeto Koyama, Takeru Kondo, Takayuki Harata, Hidemitsu Furukawa, Hiroshi Egusa
Removable dental prostheses require periodic relining with the loss of intaglio surface fit because of mucosal shape changes over time. Therefore, a new material with high adaptability to tissue changes over time would be beneficial. This study focused on a shape-memory gel (SMG) that softens when heated, retains its shape when cooled, and returns to its original shape when reheated. The purpose was
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A digital approach to fabricating a custom holder for the attachment of a mandibular sensor of an optical jaw motion tracking system: A dental technique J. Prosthet. Dent. (IF 4.6) Pub Date : 2024-02-19 Shengtao Yang, Siyu Wang, Zheqing Zhou, Dong Zhao, Quan Yuan, Li Yue
A digital approach to fabricating a custom holder to attach a mandibular sensor of an optical jaw motion tracking system is described. Typically, jaw motion tracking systems come with standard holders. However, additional chairside time is still required to adapt the holder's arm to the individual arch and securely attach the holder to the mandibular teeth. Moreover, the placement of the standard holder
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Effect of phosphoric acid containing polyvinylpyrrolidone as protective etchant for dentin bonding J. Prosthet. Dent. (IF 4.6) Pub Date : 2024-02-17 Yaoxin Wang, Ning Ding, Zutai Zhang
Phosphoric acid is commonly used in dentistry as an etchant but can result in excessive demineralization of dentin, a major contributor to the instability of dentin-bonded restorations. Nevertheless, research on the development of etchants that can reduce acid damage is sparse. The purpose of this in vitro study was to investigate the effects of polyvinylpyrrolidone-modified phosphoric acid on the
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Fully digital workflow of an occlusal device including digital facebow record: A clinical report J. Prosthet. Dent. (IF 4.6) Pub Date : 2024-02-16 Anna-Sophia Voß, Oskar Bunz, Oliver Kurbad, Ralf Bürgers
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Bond strength of prefabricated and CAD-CAM milled glass fiber post-and-cores luted with conventional, universal, and self-adhesive composite resin cement J. Prosthet. Dent. (IF 4.6) Pub Date : 2024-02-15 Djulyeny Adolfo Cheniski, Andrea Freire, Elisa Souza Camargo, Rogério Goulart da Costa, Evelise Machado de Souza, Rodrigo Nunes Rached
Little is known about the effect of different composite resin cements on the bond strength of prefabricated and milled glass fiber post-and-cores. The purpose of this in vitro study was to compare the push-out bond strengths of root dentin and standard, relined, or computer-aided design and computer-aided manufacturing (CAD-CAM) glass fiber post-and-cores luted with conventional, universal, or self-adhesive
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Impact of immediate interim restoration on peri-implant tissues around immediately placed single dental implants in the esthetic region: A systematic review and meta-analysis J. Prosthet. Dent. (IF 4.6) Pub Date : 2024-02-13 Aashi Godani, Janani Iyer, Jyoti Nadgere, Anuradha Mohite, Amit Gaikwad
Immediate implant placement with an immediate interim restoration is a well-established protocol. Nevertheless, a consensus regarding the impact of immediate interim restoration on peri-implant tissues around single dental implants is lacking. The purpose of this systematic review and meta-analysis was to address the research question: “Does the placement of an immediate interim restoration influence
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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 J. Prosthet. Dent. (IF 4.6) Pub Date : 2024-02-10 Dilem Toksoy, Özay Önöral
Studies are sparse on how glazing and aging influence the fit of additively fabricated monolithic zirconia restorations. 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. A total of 32 monolithic zirconia restorations were fabricated for a typodont model by using 4 distinct techniques
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Coordinate-based data analysis of the accuracy of five intraoral scanners for scanning completely dentate and partially edentulous mandibular arches J. Prosthet. Dent. (IF 4.6) Pub Date : 2024-02-10 Xin Wang, Fang Zhang, Dan Ma, Xiaolan Ye, Xiaojuan Zheng, Ruifang Ren, Shizhu Bai
Current methods for assessing the accuracy of intraoral scanners (IOSs) that reduce errors and provide comprehensive data compared with previous methods are lacking. The purpose of this in vitro study was to present a coordinate-based data analysis method to compare the accuracy of 5 IOSs for scanning completely dentate and partially edentulous casts. Reference scans of 2 complete arch casts (completely
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Influence of surgeon experience on implant placement in guided surgeries: A systematic review and meta-analysis of randomized clinical trials J. Prosthet. Dent. (IF 4.6) Pub Date : 2024-02-08 Jenival Correia de Almeida, Mariana Quirino Silveira Soares, Mariela Peralta Mamani, Ademir Franco, José Luiz Cintra Junqueira
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Evaluation of two printing techniques for maxillary removable partial denture frameworks J. Prosthet. Dent. (IF 4.6) Pub Date : 2024-02-07 Alwin Sokolowski, Daniel Horak, Alexander Behlau, Corina Madreiter-Sokolowski, Martin Lorenzoni, Armin Sokolowski
Three-dimensional (3D) printing technology has gained popularity in producing removable partial denture (RPD) frameworks, including direct 3D printing of the metal framework and framework printing using castable resin, subsequently cast and processed. However, whether the technology is sufficiently accurate and precise to supersede traditional methods is unclear. The purpose of this in vitro study
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ChatGPT performance in prosthodontics: Assessment of accuracy and repeatability in answer generation J. Prosthet. Dent. (IF 4.6) Pub Date : 2024-02-02 Yolanda Freire, Andrea Santamaría Laorden, Jaime Orejas Pérez, Margarita Gómez Sánchez, Víctor Díaz-Flores García, Ana Suárez
The artificial intelligence (AI) software program ChatGPT is based on large language models (LLMs) and is widely accessible. However, in prosthodontics, little is known about its performance in generating answers. The purpose of this study was to determine the performance of ChatGPT in generating answers about removable dental prostheses (RDPs) and tooth-supported fixed dental prostheses (FDPs). Thirty
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Evaluation and comparison of the accuracy of three intraoral scanners for replicating a complete denture J. Prosthet. Dent. (IF 4.6) Pub Date : 2024-02-02 Louise Le Texier, Emmanuel Nicolas, Cindy Batisse
Technological advances in digital acquisition tools have increased the scope of intraoral scanners (IOSs), including scanning a removable complete denture (RCD) to replicate it. However, studies assessing the accuracy of IOSs for replicating a maxillary or mandibular RCD are lacking. The purpose of this in vitro study was to evaluate the accuracy (trueness and precision) of 3 IOSs while replicating
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Ultraviolet C as a method of disinfecting medical silicone used in facial prostheses: An in vitro study – Part 2 J. Prosthet. Dent. (IF 4.6) Pub Date : 2024-02-02 Gabriela Malateaux, Rodrigo Ernesto Salazar-Gamarra, Jefferson de Souza Silva, Vanessa Gallego Arias Pecorari, Ivana Barbosa Suffredini, Francisco Perinni Netto, Cintia Riva Neves, Isabela Rodrigues de Souza, Alfredo Mikail de Mello Mesquita, Luciano Lauria Dib
Statement of problem Disinfection is an important factor in preserving facial prostheses and maintaining tissue health. However, whether disinfection with ultraviolet C is an effective disinfection method is unclear. Purpose The purpose of this in vitro study was to evaluate the effectiveness of irradiation with different exposure durations of an ultraviolet-C light-emitting diode in the disinfection
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Oral implant rehabilitation under general anesthesia for patients with cognitive and physical disabilities: A 14-year cohort study J. Prosthet. Dent. (IF 4.6) Pub Date : 2024-01-30 Marie-Sophie Bogner, Vivien Chambas, Jean-Luc Veyrune, Denise Faulks, Martine Hennequin
Statement of problem Oral rehabilitation with implants is an alternative to the provision of removable dentures in all patients for whom missing teeth require replacement. However, individuals with cognitive, mental health issues, and/or physical disabilities are often excluded from implant-supported prostheses because of the high perceived risk of failure linked to poor oral health, presence of parafunction
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Time efficiency and cost analysis between digital and conventional workflows for the fabrication of fixed dental prostheses: A systematic review J. Prosthet. Dent. (IF 4.6) Pub Date : 2024-02-01 Marion Bessadet, Noémie Drancourt, Nada El Osta
Statement of problem Time and cost are factors that influence a patient’s decision on dental prosthetic treatment. Evidence is needed to demonstrate that restoration using digital systems is more rapid and less costly than the conventional process. Purpose The purpose of this systematic review was to analyze and compare the duration and cost of fixed dental prostheses fabricated using digital and conventional
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Convolutional neural network-based measurement of crown-implant ratio for implant-supported prostheses J. Prosthet. Dent. (IF 4.6) Pub Date : 2024-01-25 Jin-Ping Zhang, Ze-Hui Wang, Juan Zhang, Jing Qiu
Statement of problem Research has revealed that the crown-implant ratio (CIR) is a critical variable influencing the long-term stability of implant-supported prostheses in the oral cavity. Nevertheless, inefficient manual measurement and varied measurement methods have caused significant inconvenience in both clinical and scientific work. Purpose This study aimed to develop an automated system for
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A combined 3D printed metal and resin digital denture: 5-year follow-up data and a creative design concept J. Prosthet. Dent. (IF 4.6) Pub Date : 2024-01-24 Seungyong Park, Chan Park
Many denture frameworks are currently manufactured using metal 3-dimensional (3D) printing technology. However, this advanced technology is still limited to conventional denture designs. A metal 3D printing-based denture design concept was developed and is presented based on a nonwear occlusal surface, a nonfracture denture base, and a novel connection between metal and resin.
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Influence of implant reference on the scanning accuracy of complete arch implant scans captured by using a photogrammetry system J. Prosthet. Dent. (IF 4.6) Pub Date : 2024-01-24 Marta Revilla-León, Miguel Gómez-Polo, Michael Drone, Abdul B. Barmak, Wael Att, John C. Kois, Jorge Alonso Pérez-Barquero
Statement of problem Photogrammetry has been reported to be a reliable digital alternative for recording implant positions; however, the factors that may impact the accuracy of photogrammetry techniques remain unknown. Purpose The purpose of this in vitro study was to assess the influence of the implant reference on the accuracy of complete arch implant scans acquired by using a photogrammetry system
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Staining and bleaching susceptibility of zirconia-reinforced lithium silicate glass-ceramics with different thicknesses, translucencies, and fabrication methods J. Prosthet. Dent. (IF 4.6) Pub Date : 2024-01-22 Hanan Al-Johani, Abdulaziz Alhotan, Saleh Alhijji, Nick Silikas, Julian Satterthwaite
Statement of problem The influence of different thicknesses, translucencies, and fabrication methods on the spectrophotometric and topographical properties of zirconia-reinforced lithium silicate glass-ceramics (ZLSs) for dental restorations remains unclear. Purpose The purpose of this in vitro study was to investigate the effect of thicknesses, translucencies, and fabrication methods on the color
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Trueness of artificial teeth for CAD-CAM complete dentures fabricated with additive manufacturing implementing different denture base-tooth offset values: An in vitro study J. Prosthet. Dent. (IF 4.6) Pub Date : 2024-01-22 Akram F. Neena, Mervat E. Abd-Ellah
Statement of problem Computer-aided design and computer-aided manufacturing (CAD-CAM) removable dentures have become popular. However, evaluations of the effect of denture base-tooth offset (DTO) values on the trueness of artificial teeth are lacking. Purpose The purpose of this in vitro study was to digitally measure the trueness of the artificial teeth of CAD-CAM dentures fabricated with additive
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Effect of repeated firing on the topographical, optical, and mechanical properties of fully crystallized lithium silicate-based ceramics J. Prosthet. Dent. (IF 4.6) Pub Date : 2024-01-19 Hanan Al-Johani, Julfikar Haider, Nick Silikas, Julian Satterthwaite
Statement of problem The influence of different firing protocols on the topographical, optical, and mechanical properties of fully crystallized computer-aided design and computer-aided manufacturing (CAD-CAM) lithium silicate-based glass-ceramics (LSCs) for dental restorations remains unclear. Purpose The purpose of this in vitro study was to investigate the effect of different firing regimens on the
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Positioning appliance for an implant-retained prosthesis for a patient with surgically and radiation-induced microstomia: A clinical report J. Prosthet. Dent. (IF 4.6) Pub Date : 2024-01-17 Adam M. Goodrick, Sassan Nadjmi, Joshua A. Coon
When treating a patient with microstomia, prosthesis design can become challenging and often requires modifications. The patient’s ability to insert and remove the appliance may also be a problem. This clinical report describes the fabrication of a positioning appliance for a patient with microstomia. The appliance used the maxillary teeth as a guide to orient the prosthesis appropriately and engage