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Journal of Advanced Prosthodontics

Janghyun Paek, Kwantae Noh, Ahran Pae, Hyeonjong Lee, Hyeong-Seob Kim
Fabricating a surveyed prosthesis beneath an existing partial removable dental prosthesis (PRDP) is a challenging and time-consuming procedure. The computer-aided design/computer-assisted manufacturing (CAD/CAM) technology was applied to fabricate a retrofitted, surveyed zirconia prosthesis to an existing PRDP. CAD/CAM technology enabled precise and easy replication of the contour of the planned surveyed crown on the existing abutment tooth. This technology ensured excellent adaptation and fit of newly fabricated crown to the existing PRDP with minimal adjustments...
August 2016: Journal of Advanced Prosthodontics
Da-Le Yoon, Yong-Gun Kim, Jin-Hyun Cho, Sang-Kyu Lee, Jae-Mok Lee
PURPOSE: This study was designed to investigate the maintenance of teeth and implants in patients with viral liver disease. MATERIALS AND METHODS: 316 patients without any significant systemic disease were selected as a control group. Liver disease group was consisted of 230 patients. Necessary data were collected using clinical records and panoramic radiographs. Then, the patients were subdivided into 2 groups based on the type of active dental therapy received before maintenance period (Pre-Tx)...
August 2016: Journal of Advanced Prosthodontics
Yong-Ho Seo, Eun-Bin Bae, Jung-Woo Kim, So-Hyoun Lee, Mi-Jung Yun, Chang-Mo Jeong, Young-Chan Jeon, Jung-Bo Huh
PURPOSE: The aim of this study was to evaluate the clinical findings and patient satisfaction on implant overdenture designed with Locator implant attachment or Locator bar attachment in mandibular edentulous patients. MATERIALS AND METHODS: Implant survival rate, marginal bone loss, probing depth, peri-implant inflammation, bleeding, plaque, calculus, complications, and satisfaction were evaluated on sixteen patients who were treated with mandibular overdenture and have used it for at least 1 year (Locator implant attachment: n=8, Locator bar attachment: n=8)...
August 2016: Journal of Advanced Prosthodontics
Ho-Yong Song, Yoon-Hyuk Huh, Chan-Jin Park, Lee-Ra Cho
PURPOSE: The aim of this study was to investigate the stress distribution of 2-short implants (2SIs) installed in a severely atrophic maxillary molar site. MATERIALS AND METHODS: Three different diameters of internal connection implants were modeled: narrow platform (NP), regular platform (RP), and wide platform (WP). The maxillary first molars were restored with one implant or two short implants. Three 2SI models (NP-oblique, NP-vertical, and NP-horizontal) and four single implant models (RP and WP in a centered or cantilevered position) were used...
August 2016: Journal of Advanced Prosthodontics
Seo-Ryeon Lim, Joon-Seok Lee
PURPOSE: The aim of this study was to evaluate whether there is any typical deformation pattern existing in complete denture when it was dried by using the 3D scanner and surface matching program. MATERIALS AND METHODS: A total of 28 denture bases were fabricated with heat curing acrylic resin (each 14 upper and lower denture bases), and 14 denture bases (each 7 upper and lower denture bases) were stored in the water bottle (water stored), and another 14 denture bases were stored in the air (dry stored)...
August 2016: Journal of Advanced Prosthodontics
Orhun Ekren, Ahmet Ozkomur
PURPOSE: The aim of this study was to evaluate the effect of paracetic acid (PAA) and ozone disinfection on the tensile bond strength (TBS) of silicone-based resilient liners to acrylic resins. MATERIALS AND METHODS: One hundred and twenty dumbbell shaped heat-polymerized acrylic resins were prepared. From the mid segment of the specimens, 3 mm of acrylic were grinded off and separated parts were reattached by resilient liners. The specimens were divided into 2 control (control1, control7) and 4 test groups of PAA and ozone disinfection (PAA1, PAA7, ozone1 and ozone7; n=10)...
August 2016: Journal of Advanced Prosthodontics
Ticha Thongrakard, Chairat Wiwatwarrapan
PURPOSE: This study evaluated the effect of chemical surface treatment using methyl formate-methyl acetate (MF-MA) solution on the tensile bond strength between acrylic denture teeth and auto-polymerized acrylic resin. MATERIALS AND METHODS: Seventy maxillary central incisor acrylic denture teeth for each of three different brands (Yamahachi New Ace; Major Dent; Cosmo HXL) were embedded with incisal edge downwards in auto-polymerized resin in polyethylene pipes and ground with silicone carbide paper on their ridge lap surfaces...
August 2016: Journal of Advanced Prosthodontics
Joon-Ho Park, Yu-Sung Choi
PURPOSE: The aim of this study was to evaluate the influence of different surface treatment methods on the microtensile bond strength of resin cement to resin nanoceramic (RNC). MATERIALS AND METHODS: RNC onlays (Lava Ultimate) (n=30) were treated using air abrasion with and without a universal adhesive, or HF etching followed by a universal adhesive with and without a silane coupling agent, or tribological silica coating with and without a universal adhesive, and divided into 6 groups...
August 2016: Journal of Advanced Prosthodontics
Fatih Sari, Asli Secilmis, Irfan Simsek, Semih Ozsevik
PURPOSE: This study aimed to evaluate the effect of surface treatments on bond strength of indirect composite material (Tescera Indirect Composite System) to monolithic zirconia (inCoris TZI). MATERIALS AND METHODS: Partially stabilized monolithic zirconia blocks were cut into with 2.0 mm thickness. Sintered zirconia specimens were divided into different surface treatment groups: no treatment (control), sandblasting, glaze layer & hydrofluoric acid application, and sandblasting + glaze layer & hydrofluoric acid application...
August 2016: Journal of Advanced Prosthodontics
Merve Bankoğlu Güngör, Seçil Karakoca Nemli, Bilge Turhan Bal, Senem Ünver, Aylin Doğan
PURPOSE: The purpose of this study was to assess the effect of surface treatments on shear bond strength of resin composite bonded to thermocycled and non-thermocycled CAD/CAM resin-ceramic hybrid materials. MATERIALS AND METHODS: 120 specimens (10×10×2 mm) from each material were divided into 12 groups according to different surface treatments in combination with thermal aging procedures. Surface treatment methods were airborne-particle abrasion (abraded with 50 micron alumina particles), dry grinding (grinded with 125 µm grain size bur), and hydrofluoric acid (9%) and silane application...
August 2016: Journal of Advanced Prosthodontics
Fereshteh Shafiei, Mahtab Memarpour, Zahra Sarafraz
PURPOSE: This study was undertaken to investigate whether use of an adhesive penetration enhancer, dimethyl sulfoxide (DMSO), improves bond stability of fiber posts to root dentin using two two-step etch-and-rinse resin cements. MATERIALS AND METHODS: Forty human maxillary central incisor roots were randomly divided into 4 groups after endodontic treatment and post space preparation, based on the fiber post/cement used with and without DMSO pretreatment. Acid-etched root dentin was treated with 5% DMSO aqueous solution for 60 seconds or with distilled water (control) prior to the application of Excite DSC/Variolink II or One-Step Plus/Duo-link for post cementation...
August 2016: Journal of Advanced Prosthodontics
Hyeon-Goo Kang, Yoon-Hyuk Huh, Chan-Jin Park, Lee-Ra Cho
Oligodontia is defined as a congenital tooth agenesis with the absence of six or more permanent teeth. This clinical report describes a patient with non-syndromic partial oligodontia, with retained deciduous teeth and the absence of 16 permanent teeth. Anterior esthetic problems were caused by interarch tooth size discrepancy, interdental space, aberrant tooth dimensions, and the absence of centric contacts of the anterior teeth. Prosthetic restoration after orthodontic and implant treatment was performed with a multi-disciplinary team approach...
June 2016: Journal of Advanced Prosthodontics
Lin-Jie Li, So-Nam Kim, Sung-Am Cho
PURPOSE: In this study, the aim of this study was to evaluate the effect of implant surface treatment on cell differentiation of osteoblast cells. For this purpose, three surfaces were compared: (1) a modified SLA (MSLA: sand-blasted with large grit, acid-etched, and immersed in 0.9% NaCl), (2) a laser treatment (LT: laser treatment) titanium surface and (3) a laser and acid-treated (LAT: laser treatment, acid-etched) titanium surface. MATERIALS AND METHODS: The MSLA surfaces were considered as the control group, and LT and LAT surfaces as test groups...
June 2016: Journal of Advanced Prosthodontics
Jee-Hwan Kim, Soo-Yeon Shin, Janghyun Paek, Jong-Ho Lee, Ho-Beom Kwon
PURPOSE: The purpose of this study was to investigate the demographic patterns of maxillofacial prosthetic treatment to identify the characteristics and geographic distribution of patients with maxillofacial prosthetics in the capital region of Korea. MATERIALS AND METHODS: This retrospective analytical multicenter study was performed by chart reviews. This study included patients who visited the department of prosthodontics at four university dental hospitals for maxillofacial prosthetic rehabilitation...
June 2016: Journal of Advanced Prosthodontics
Roodabeh Koodaryan, Ali Hafezeqoran, Sajjad Poursoltan
PURPOSE: This study aimed to investigate whether dentin surface preparation with diamond rotary instruments of different grit sizes affects the shear bond strength of resin-bonded restorations. MATERIALS AND METHODS: The buccal enamel of 60 maxillary central incisors was removed with a low speed diamond saw and wet ground with silicon carbide papers. The polished surfaces of the teeth were prepared with four groups of rotary diamond burs with super-coarse (SC), coarse (C), medium (M), and fine (F) grit sizes...
June 2016: Journal of Advanced Prosthodontics
Mahmoud Elbashti, Mariko Hattori, Yuka Sumita, Amel Aswehlee, Shigen Yoshi, Hisashi Taniguchi
PURPOSE: This study aimed to create a digitized database of fabricated obturators to be kept for patients' potential emergency needs. MATERIALS AND METHODS: A chairside intraoral scanner was used to scan the surfaces of an acrylic resin obturator. The scanned data was recorded and saved as a single standard tessellation language file using a three-dimensional modeling software. A simulated obturator model was manufactured using fused deposition modeling technique in a three-dimensional printer...
June 2016: Journal of Advanced Prosthodontics
Jin-Hun Jeon, Dong-Yeon Kim, Jae-Jun Lee, Ji-Hwan Kim, Woong-Chul Kim
PURPOSE: We assessed the repeatability and reproducibility of abutment teeth dental impressions, digitized with a blue light scanner, by comparing the discrepancies in repeatability and reproducibility values for different types of abutment teeth. MATERIALS AND METHODS: To evaluate repeatability, impressions of the canine, first premolar, and first molar, prepared for ceramic crowns, were repeatedly scanned to acquire 5 sets of 3-dimensional data via stereolithography (STL) files...
June 2016: Journal of Advanced Prosthodontics
Du-Hyeong Lee, Seo-Young An, Min-Ho Hong, Kyoung-Bae Jeon, Kyu-Bok Lee
PURPOSE: A recently introduced direct drill-guiding implant surgery system features minimal tolerance of surgical instruments in the metal sleeve by using shank-modified drills and a sleeve-incorporated stereolithographic guide template. The purpose of this study was to evaluate the accuracy of this new guided surgery system in partially edentulous patients using geometric analyses. MATERIALS AND METHODS: For the study, 21 implants were placed in 11 consecutive patients using the direct drill-guiding implant surgery system...
June 2016: Journal of Advanced Prosthodontics
Raquel Montes-Fariza, Manuel Monterde-Hernández, Cristina Cabanillas-Casabella, Antonio Pallares-Sabater
PURPOSE: The aim of this study was to compare the radiopacity of 6 modern resin cements with that of human enamel and dentine using the Digora digital radiography system, to verify whether they meet the requirements of ANSI/ADA specification no. 27/1993 and the ISO 4049/2000 standard and assess whether their radiopacity is influenced by the thickness of the cement employed. MATERIALS AND METHODS: Three 3-thickness samples (0.5, 1 and 1.5 mm) were fabricated for each material...
June 2016: Journal of Advanced Prosthodontics
Fabian Huettig, Ulf Peter Gehrke
PURPOSE: The prospective follow-up aimed to assess the performance of lithium disilicate crowns and clinical reasons of adverse events compromising survival and quality. MATERIALS AND METHODS: 58 patients were treated with 375 heat-pressed monolithic crowns, which were bonded with resin cement. Annual recalls up to five years included a complete dental examination as well as quality assessment using CDA-criteria. Any need for clinical intervention led to higher complication rate and any failure compromised the survival rate...
June 2016: Journal of Advanced Prosthodontics
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