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Journal J Adv Prosthodont

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Displacement of scan body during screw tightening: A comparative in vitro study.

JungHan Kim, KeunBaDa Son, Kyu-Bok Lee,

<h4>Purpose</h4>The purpose of this study was to evaluate the occurrence of displacement while tightening the screw of scan bodies, which were compared according to the material type.<h4>Materials and methods</h4>Three types of scan bodies whose base regions were made up of polyether ether ketone (PEEK) material [Straumann Group, Dentium Group, and ... Read more >>

J Adv Prosthodont (The journal of advanced prosthodontics)
[2020, 12(5):307-315]

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An experimental study on hydrothermal degradation of cubic-containing translucent zirconia.

Santiphab Kengtanyakich, Chaimongkon Peampring,

<h4>Purpose</h4>The aims of this study were to investigate mechanical properties and hydrothermal degradation behaviour of the cubic-containing translucent yttrium oxide stabilized tetragonal zirconia polycrystal (Y-TZP).<h4>Materials and methods</h4>Four groups of Y-TZP (T, ST, XT, and P), containing different amount of cubic crystal, were examined. Specimens were aged by autoclaving at 122℃ ... Read more >>

J Adv Prosthodont (The journal of advanced prosthodontics)
[2020, 12(5):265-272]

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Biomechanical stress and microgap analysis of bone-level and tissue-level implant abutment structure according to the five different directions of occlusal loads.

Jae-Hoon Kim, Gunwoo Noh, Seoung-Jin Hong, Hyeonjong Lee,

<h4>Purpose</h4>The stress distribution and microgap formation on an implant abutment structure was evaluated to determine the relationship between the direction of the load and the stress value.<h4>Materials and methods</h4>Two types of three-dimensional models for the mandibular first molar were designed: bone-level implant and tissue-level implant. Each group consisted of an ... Read more >>

J Adv Prosthodont (The journal of advanced prosthodontics)
[2020, 12(5):316-321]

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Comparing the accuracy of six intraoral scanners on prepared teeth and effect of scanning sequence.

Burcu Diker, Önjen Tak,

<h4>Purpose</h4>The aim of this study was to evaluate the accuracy of six recently introduced intraoral scanners (IOSs) for single crown preparations isolated from the complete arch, and to determine the effect of scanning sequence on accuracy.<h4>Materials and methods</h4>A complete arch with right and left canine preparations for single crowns was ... Read more >>

J Adv Prosthodont (The journal of advanced prosthodontics)
[2020, 12(5):299-306]

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Color stability of provisional restorative materials with different fabrication methods.

So-Yeon Song, Yo-Han Shin, Jeong-Yol Lee, Sang-Wan Shin,

<h4>Purpose</h4>The aim of this study was to investigate and compare the color stability of provisional restorative materials fabricated by 3D printing, dental milling, and conventional materials.<h4>Materials and methods</h4>For the experimental groups, two commercially available 3D-printing provisional resins (E-Dent 100; EnvisionTEC GmbH, Germany & VeroGlaze™; Stratasys®, USA), two dental milling blocks ... Read more >>

J Adv Prosthodont (The journal of advanced prosthodontics)
[2020, 12(5):259-264]

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Survival rate and clinical evaluation of the implants in implant assisted removable partial dentures: surveyed crown and overdenture.

Soo-Hyun Kang, Seong-Kyun Kim, Seong-Joo Heo, Jai-Young Koak,

<h4>Purpose</h4>The purpose of this study was to investigate survival rates of the implants used in implant assisted removable partial dentures (IARPDs).<h4>Materials and methods</h4>The study was conducted on 21 patients who were treated with IARPDs. The mean follow-up period for IARPD patients ranged from 12 to 185 months (mean 47.9 months). ... Read more >>

J Adv Prosthodont (The journal of advanced prosthodontics)
[2020, 12(4):239-249]

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Evaluation of the effect of abutment preparation angles on the repeatability and reproducibility using a blue light model scanner.

Dong-Yeon Kim,

<h4>Purpose</h4>The purpose of the study is to evaluate the repeatability and reproducibility of the abutment angle using a blue light scanner.<h4>Materials and methods</h4>0°, 6°, and 10° wax cast abutment dies were fabricated. Each of the silicone impression was produced using the replicable silicone. Each study die was constructed from the ... Read more >>

J Adv Prosthodont (The journal of advanced prosthodontics)
[2020, 12(4):210-217]

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Marginal and internal fit of 3D printed provisional crowns according to build directions.

Ji-Eun Ryu, Yu-Lee Kim, Hyun-Jun Kong, Hoon-Sang Chang, Ji-Hye Jung,

<h4>Purpose</h4>This study aimed to fabricate provisional crowns at varying build directions using the digital light processing (DLP)-based 3D printing and evaluate the marginal and internal fit of the provisional crowns using the silicone replica technique (SRT).<h4>Materials and methods</h4>The prepared resin tooth was scanned and a single crown was designed using ... Read more >>

J Adv Prosthodont (The journal of advanced prosthodontics)
[2020, 12(4):225-232]

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Erratum: Evaluation of the repair capacities and color stabilities of a resin nanoceramic and hybrid CAD/CAM blocks.

[This corrects the article on p. 140 in vol. 12, PMID: 32601533.]. ... Read more >>

J Adv Prosthodont (The journal of advanced prosthodontics)
[2020, 12(4):250]

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Salivary secretion and salivary stress hormone level changes induced by tongue rotation exercise.

Fumi Mizuhashi, Kaoru Koide,

<h4>Purpose</h4>Prevention of xerostomia and stress is important to prolong healthy life expectancy and improve the quality of life. We aimed to investigate the effects of tongue rotation exercise for increasing salivary secretions and stabilizing salivary stress hormone levels.<h4>Materials and methods</h4>Twenty four participants without subjective oral dryness were enrolled. The exercises ... Read more >>

J Adv Prosthodont (The journal of advanced prosthodontics)
[2020, 12(4):204-209]

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A novel retentive type of dental implant prosthesis: marginal fitness of the cementless double crown type implant prosthesis evaluated by bacterial penetration and viability.

Seoung-Jin Hong, Kung-Rock Kwon, Eun-Young Jang, Ji-Hoi Moon,

<h4>Purpose</h4>This study aims to compare the marginal fitness of two types of implant-supported fixed dental prosthesis, i.e., cementless fixation (CL.F) system and cement-retained type.<h4>Materials and methods</h4>In each group, ten specimens were assessed. Each specimen comprised implant lab analog, titanium abutment fabricated with a 2-degree tapered axial wall, and zirconia crown. ... Read more >>

J Adv Prosthodont (The journal of advanced prosthodontics)
[2020, 12(4):233-238]

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The effect of the improperly scanned scan body images on the accuracy of virtual implant positioning in computer-aided design software.

Se-Won Park, Yong-Do Choi, Du-Hyeong Lee,

<h4>Purpose</h4>The aim of this study was to examine the importance of the defect-free scanning of a scan body by assessing the accuracy of virtual implant positioning in computer-aided design (CAD) software when the scan body image is improperly scanned.<h4>Materials and methods</h4>A scan body was digitized in a dentiform model using ... Read more >>

J Adv Prosthodont (The journal of advanced prosthodontics)
[2020, 12(3):107-113]

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Effect of repetitive firing on passive fit of metal substructure produced by the laser sintering in implant-supported fixed prosthesis.

Musa Aykut Altintas, Hakan Akin,

<h4>Purpose</h4>The aim of the present study was to investigate the passive fit of metal substructure after repetitive firing processes in implant-supposed prosthesis.<h4>Materials and methods</h4>Five implants (4 mm diameter and 10 mm length) were placed into the resin-based mandibular model and 1-piece of screw-retained metal substructure was produced with the direct ... Read more >>

J Adv Prosthodont (The journal of advanced prosthodontics)
[2020, 12(3):167-172]

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Comparison of three-dimensional digital technique with two-dimensional replica method for measuring marginal and internal fit of full coverage restorations.

Mahya Hasanzade, Soudabeh Koulivand, Naeime Moslemian, Marzieh Alikhasi,

<h4>Purpose</h4>This study compared digital (reference point matching) and replica methods for measuring marginal and internal fit of full coverage restorations.<h4>Materials and methods</h4>A maxillary left first molar typodent was fixed on to an aluminum base and prepared to receive all-ceramic full coverage restoration. The model was scanned with an intraoral scanner ... Read more >>

J Adv Prosthodont (The journal of advanced prosthodontics)
[2020, 12(3):173-180]

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The reliability of Anycheck device related to healing abutment diameter.

Dong-Hoon Lee, Yo-Han Shin, Jin-Hong Park, Ji-Suk Shim, Sang-Wan Shin, Jeong-Yol Lee,

PURPOSE:The purpose of this in vitro study was to examine the reliability of the Anycheck device and the effect of the healing abutment diameter on the Anycheck values (implant stability test, IST). MATERIALS AND METHODS:Thirty implants were placed into three artificial bone blocks with 10 Ncm, 15 Ncm, and 35 ... Read more >>

J Adv Prosthodont (The journal of advanced prosthodontics)
[2020, 12(2):83-88]

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Comparison of two computerized occlusal analysis systems for indicating occlusal contacts.

Min-Young Jeong, Young-Jun Lim, Myung-Joo Kim, Ho-Beom Kwon,

PURPOSE:The purpose of this study was to compare the performance of Accura to that of the T-scan for indicating occlusal contacts. MATERIALS AND METHODS:Twenty-four subjects were selected. Their maxillary dental casts were scanned with a model scanner. The Stereolithography files of the casts were positioned to align with the occlusal ... Read more >>

J Adv Prosthodont (The journal of advanced prosthodontics)
[2020, 12(2):49-54]

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Does the prosthesis weight matter? 3D finite element analysis of a fixed implant-supported prosthesis at different weights and implant numbers.

João Paulo Mendes Tribst, Amanda Maria de Oliveira Dal Piva, Alexandre Luiz Souto Borges, Vinicius Anéas Rodrigues, Marco Antonio Bottino, Cornelis Johannes Kleverlaan,

PURPOSE:This study evaluated the influence of prosthesis weight and number of implants on the bone tissue microstrain. MATERIALS AND METHODS:Fifteen (15) fixed full-arch implant-supported prosthesis designs were created using a modeling software with different numbers of implants (4, 6, or 8) and prosthesis weights (10, 15, 20, 40, or 60 ... Read more >>

J Adv Prosthodont (The journal of advanced prosthodontics)
[2020, 12(2):67-74]

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Attitude and treatment options in implant-supported prosthetics: A survey among a cohort of German dentists.

Carolin Glücker, Angelika Rauch, Sebastian Hahnel,

PURPOSE:The aim of the current study was to analyze treatment concepts of a cohort of German dentists for planning, fabrication, and maintenance of implant-supported fixed and removable restorations. MATERIALS AND METHODS:A questionnaire including queries about experiences with implant-supported restorations as well as prosthetic and maintenance treatment concepts for supplying patients ... Read more >>

J Adv Prosthodont (The journal of advanced prosthodontics)
[2020, 12(1):15-21]

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Effects of type of magnet attachment and implant angulation in two implant overdenture models.

So-Yeon Song, Kyeong-Hwan Kang, Jeong-Yol Lee, Sang-Wan Shin,

PURPOSE:The purpose of this study is to evaluate the effects of type of magnet attachment and implant angulation in two implant overdenture models. MATERIALS AND METHODS:Magnet attachments used in this study were flat and dome types (MGT5515, MGT5520D, Dentium Co., Seoul, Korea). Two implants with keepers were inserted in the ... Read more >>

J Adv Prosthodont (The journal of advanced prosthodontics)
[2020, 12(1):33-37]

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Clinical outcomes of rigid and non-rigid telescopic double-crown-retained removable dental prostheses: An analytical review.

Jeong-Gyo Seo, Jin-Hyun Cho,

PURPOSE:The objective of this literature review was to analyze the cumulative survival rates (CSRs) of rigid and non-rigid double-crown-retained removable dental prostheses. MATERIALS AND METHODS:Screening of the literature published from January 1995 to December 2019 was performed by using electronic data base (Pubmed) and manual search. The CSRs of rigid ... Read more >>

J Adv Prosthodont (The journal of advanced prosthodontics)
[2020, 12(1):38-48]

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Influence of zirconia and lithium disilicate tooth- or implant-supported crowns on wear of antagonistic and adjacent teeth.

Martin Rosentritt, Frederik Schumann, Stephanie Krifka, Verena Preis,

PURPOSE:To investigate the influence of crown material (lithium-disilicate, 3Y-TZP zirconia) and abutment type (rigid implant, resin tooth with artificial periodontium) on wear performance of their antagonist teeth and adjacent teeth. MATERIALS AND METHODS:A mandibular left first molar (#36) with adjacent human teeth (mandibular left second premolar: #35, mandibular left second ... Read more >>

J Adv Prosthodont (The journal of advanced prosthodontics)
[2020, 12(1):1-8]

Cited: 1 time

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Effects of cementless fixation of implant prosthesis: A finite element study.

Hyeonjong Lee, Soyeon Park, Kung-Rock Kwon, Gunwoo Noh,

PURPOSE:A novel retentive type of implant prosthesis that does not require the use of cement or screw holes has been introduced; however, there are few reports examining the biomechanical aspects of this novel implant. This study aimed to evaluate the biomechanical features of cementless fixation (CLF) implant prostheses. MATERIALS AND ... Read more >>

J Adv Prosthodont (The journal of advanced prosthodontics)
[2019, 11(6):341-349]

Cited: 1 time

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Accuracy of different electronic torque drivers: A comparative evaluation.

Byeong-Dae Ko, KeunBaDa Son, Seok Hyon Kang, Kyu-Bok Lee,

PURPOSE:This study aims to evaluate the loosening torque on the implant fixture, and to assess the accuracy of difference electronic torque drivers. MATERIALS AND METHODS:Three electronic torque drivers were used to measure the loosening torque on the implant system (AnyOne; MegaGen). The implant fixtures were divided among the 3 electronic ... Read more >>

J Adv Prosthodont (The journal of advanced prosthodontics)
[2019, 11(6):350-357]

Cited: 1 time

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Comparison of CAD/CAM abutment and prefabricated abutment in Morse taper internal type implant after cyclic loading: Axial displacement, removal torque, and tensile removal force.

Yuseung Yi, Seong-Joo Heo, Jai-Young Koak, Seong-Kyun Kim,

PURPOSE:The purpose of this study was to compare computer-aided design/computer-aided manufacturing (CAD/CAM) abutment and prefabricated abutment in Morse taper internal connection type implants after cyclic loading. MATERIALS AND METHODS:The study was conducted with internal type implants of two different manufacturers (Group Os, De). Fourteen assemblies were prepared for each manufacturer ... Read more >>

J Adv Prosthodont (The journal of advanced prosthodontics)
[2019, 11(6):305-312]

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A new method to measure the accuracy of intraoral scanners along the complete dental arch: A pilot study.

Mikel Iturrate, Erlantz Lizundia, Xabier Amezua, Eneko Solaberrieta,

PURPOSE:The purpose of this study is to assess the accuracy of three intraoral scanners along the complete dental arch and evaluate the feasibility of the assessment methodology for further in vivo analysis. MATERIALS AND METHODS:A specific measurement pattern was fabricated and measured using a coordinate measuring machine for the assessment ... Read more >>

J Adv Prosthodont (The journal of advanced prosthodontics)
[2019, 11(6):331-340]

Cited: 2 times

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