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Journal of Advanced Prosthodontics

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https://www.readbyqxmd.com/read/28018570/immediate-fixed-partial-denture-after-tooth-extraction-in-patients-with-systemic-diseases-a-clinical-report
#1
Hyun Sun Kang, Su Young Lee
For patients with systemic diseases who face difficulties visiting dental clinics, wearing fixed partial denture in the anterior region on the same day of tooth extraction can reduce the total period of treatment and the number of visits, as well as post-treatment psychological effect on the patient.
December 2016: Journal of Advanced Prosthodontics
https://www.readbyqxmd.com/read/28018569/effect-of-surface-treatment-methods-on-the-shear-bond-strength-of-auto-polymerized-resin-to-thermoplastic-denture-base-polymer
#2
Roodabeh Koodaryan, Ali Hafezeqoran
PURPOSE: Polyamide polymers do not provide sufficient bond strength to auto-polymerized resins for repairing fractured denture or replacing dislodged denture teeth. Limited treatment methods have been developed to improve the bond strength between auto-polymerized reline resins and polyamide denture base materials. The objective of the present study was to evaluate the effect of surface modification by acetic acid on surface characteristics and bond strength of reline resin to polyamide denture base...
December 2016: Journal of Advanced Prosthodontics
https://www.readbyqxmd.com/read/28018568/the-prognosis-of-splinted-restoration-of-the-most-distal-implants-in-the-posterior-region
#3
Jong-Bin Lee, Man-Yong Kim, Chang-Sung Kim, Young-Taek Kim
PURPOSE: The aim of this study was to compare the efficacies of two-implant splinting (2-IS) and single-implant restoration (1-IR) in the first and second molar regions over a mean functional loading period (FLP) of 40 months, and to propose the appropriate clinical considerations for the splinting technique. MATERIALS AND METHODS: The following clinical factors were examined in the 1-IR and 2-IS groups based on the total hospital records of the patients: sex, mean age, implant location, FLP, bone grafting, clinical crown-implant ratio, crown height space, and horizontal distance...
December 2016: Journal of Advanced Prosthodontics
https://www.readbyqxmd.com/read/28018567/a-comparison-of-the-fracture-resistances-of-endodontically-treated-mandibular-premolars-restored-with-endocrowns-and-glass-fiber-post-core-retained-conventional-crowns
#4
Jing Guo, Zhiming Wang, Xuesheng Li, Chaoyang Sun, Erdong Gao, Hongbo Li
PURPOSE: This in-vitro study aimed to evaluate the fracture resistances and failure modes of endodontically treated mandibular premolars restored with endocrowns and conventional post-core retained crowns. MATERIALS AND METHODS: Thirty mandibular premolars were assigned into three groups (n=10): GI, intact teeth; GE, teeth with endocrowns; GC, teeth with conventional post-core supported crowns. Except for the teeth in group GI, all specimens were cut to 1.5 mm above the cementoenamel junction and endodontically treated...
December 2016: Journal of Advanced Prosthodontics
https://www.readbyqxmd.com/read/28018566/interfacial-modulus-mapping-of-layered-dental-ceramics-using-nanoindentation
#5
Antonios L Theocharopoulos, Andrew J Bushby, Ken My P'ng, Rory M Wilson, K Elizabeth Tanner, Michael J Cattell
PURPOSE: The aim of this study was to test the modulus of elasticity (E) across the interfaces of yttria stabilized zirconia (YTZP) / veneer multilayers using nanoindentation. MATERIALS AND METHODS: YTZP core material (KaVo-Everest, Germany) specimens were either coated with a liner (IPS e.max ZirLiner, Ivoclar-Vivadent) (Type-1) or left as-sintered (Type-2) and subsequently veneered with a pressable glass-ceramic (IPS e.max ZirPress, Ivoclar-Vivadent). A 5 µm (nominal tip diameter) spherical indenter was used with a UMIS CSIRO 2000 (ASI, Canberra, Australia) nanoindenter system to test E across the exposed and polished interfaces of both specimen types...
December 2016: Journal of Advanced Prosthodontics
https://www.readbyqxmd.com/read/28018565/contour-of-lingual-surface-in-lower-complete-denture-formed-by-polished-surface-impression
#6
Yu-Ri Heo, Hee-Jung Kim, Mee-Kyoung Son, Chae-Heon Chung
PURPOSE: The aim of this study was to analyze the shapes of lingual polished surfaces in lower complete dentures formed by polished surface impressions and to provide reference data for use when manufacturing edentulous trays and lower complete dentures. MATERIALS AND METHODS: Twenty-six patients with mandibular edentulism were studied. After lower wax dentures were fabricated, wax was removed from the lingual side of the wax denture and a lingual polished surface impression was obtained with tissue conditioner...
December 2016: Journal of Advanced Prosthodontics
https://www.readbyqxmd.com/read/28018564/evaluation-of-stability-of-interface-between-ccm-co-cr-mo-ucla-abutment-and-external-hex-implant
#7
Ki-Joon Yoon, Young-Bum Park, Hyunmin Choi, Youngsung Cho, Jae-Hoon Lee, Keun-Woo Lee
PURPOSE: The purpose of this study is to evaluate the stability of interface between Co-Cr-Mo (CCM) UCLA abutment and external hex implant. MATERIALS AND METHODS: Sixteen external hex implant fixtures were assigned to two groups (CCM and Gold group) and were embedded in molds using clear acrylic resin. Screw-retained prostheses were constructed using CCM UCLA abutment and Gold UCLA abutment. The external implant fixture and screw-retained prostheses were connected using abutment screws...
December 2016: Journal of Advanced Prosthodontics
https://www.readbyqxmd.com/read/28018563/comparing-a-tablet-computer-and-paper-forms-for-assessing-patient-reported-outcomes-in-edentulous-patients
#8
Thais Angelina Caetano, Adriana Barbosa Ribeiro, Maria Paula Della Vecchia, Tatiana Ramirez Cunha, Carolina de Andrade Lima Chaves, Raphael Freitas de Souza
PURPOSE: The aim of this study was to determine whether two methods of documentation, print and electronic forms, for the assessment of patient-reported outcomes (PRO) in complete denture wearers provide comparable results. The study also quantified the time needed for filling the forms by each method. MATERIALS AND METHODS: Thirty participants enrolled in a university clinic answered two forms (a questionnaire for denture satisfaction and OHIP-EDENT). They provided answers with two application methods in a random order, with a one-month interval between them: (1) electronic forms on a tablet computer; and (2) print forms...
December 2016: Journal of Advanced Prosthodontics
https://www.readbyqxmd.com/read/28018562/effect-of-cement-type-on-the-color-attributes-of-a-zirconia-ceramic
#9
Farhad Tabatabaian, Maliheh Habib Khodaei, Mahshid Namdari, Minoo Mahshid
PURPOSE: This in vitro study evaluated the effects of four different cements on the color attributes of a zirconia ceramic. MATERIALS AND METHODS: 40 zirconia ceramic disk specimens (0.5 mm thickness, 10 mm diameter, 0.1 mm cement space) were fabricated by a computer-aided design and computer-aided manufacturing system. The specimens were divided into 4 groups of 10 specimens and cemented to composite substrates using four different cements including: Glass Ionomer, Panavia F2...
December 2016: Journal of Advanced Prosthodontics
https://www.readbyqxmd.com/read/28018561/comparison-of-the-fit-accuracy-of-zirconia-based-prostheses-generated-by-two-cad-cam-systems
#10
Seok-Joon Ha, Jin-Hyun Cho
PURPOSE: The purposes of this study are to evaluate the internal and marginal adaptation of two widely used CAD/CAM systems and to study the effect of porcelain press veneering process on the prosthesis adaptation. MATERIALS AND METHODS: Molar of a lower jaw typodont resin model was prepared by adjusting a 1.0 mm circumferential chamfer, an occlusal reduction of 2.0 mm, and a 5° convergence angle and was duplicated as an abrasion-resistant master die. The monolithic crowns and copings were fabricated with two different CAD/CAM system-Ceramil and Zirkonzahn systems...
December 2016: Journal of Advanced Prosthodontics
https://www.readbyqxmd.com/read/28018560/mechanical-properties-related-to-the-microstructure-of-seven-different-fiber-reinforced-composite-posts
#11
Víctor Alonso de la Peña, Iria L Darriba, Martín Caserío Valea, Francisco Guitián Rivera
PURPOSE: The aim of this in vitro study was to evaluate the mechanical properties (bending strength and hardness) of seven different fiber reinforced composite posts, in relation to their microstructural characteristics. MATERIALS AND METHODS: Two hundred eighty posts were divided into seven groups of 40, one group for each type of post analyzed. Within each group, 15 posts were subjected to three-point bending strength test, 15 to a microhardess meter for the Knoop hardness, and 10 to Scanning Electron Microscope in order to determine the diameter of the fibers and the percentage of fibers embedded in the matrix...
December 2016: Journal of Advanced Prosthodontics
https://www.readbyqxmd.com/read/28018559/color-variation-induced-by-abutments-in-the-superior-anterior-maxilla-an-in-vitro-study-in-the-pig-gingiva
#12
Ramin Atash, Mohamed-Reda Boularbah, Cetik Sibel
PURPOSE: The aim of this work is to evaluate different types of materials used for making implant abutments, by means of an in vitro study and a review of the literature, in order to identify the indications for a better choice of an implant-supported restoration in the anterior section. MATERIALS AND METHODS: 5 implant abutments were tested in a random order in the superior anterior maxilla of pig gingiva (n = 8): titanium dioxide (Nobel Biocare); zirconium dioxide, Standard BO shade (Nobel Biocare, Kloten, Switzerland); zirconium dioxide, Light BI shade (Nobel Biocare); zirconium dioxide, Intense A 3...
December 2016: Journal of Advanced Prosthodontics
https://www.readbyqxmd.com/read/28018558/the-effects-of-different-polishing-techniques-on-the-staining-resistance-of-cad-cam-resin-ceramics
#13
Omer Sagsoz, Tevfik Demirci, Gamze Demirci, Nurdan Polat Sagsoz, Mehmet Yildiz
PURPOSE: The purposes of this study were to evaluate the staining resistance of CAD/CAM resin-ceramics polished with different techniques and to determine the effectiveness of the polishing techniques on resin-ceramics, comparing it with that of a glazed glass-ceramic. MATERIALS AND METHODS: Four different CAD/CAM ceramics (feldspathic ceramic: C-CEREC Blocs, (SIRONA) and three resin-ceramics: L-Lava Ultimate, (3M ESPE), E-Enamic, (VITA) and CS-CeraSmart, (GC)) and one light cure composite resin: ME-Clearfil Majesty Esthetic (Kuraray) were used...
December 2016: Journal of Advanced Prosthodontics
https://www.readbyqxmd.com/read/27826392/prosthetic-reconstruction-with-an-obturator-using-swing-lock-attachment-for-a-patient-underwent-maxillectomy-a-clinical-report
#14
Dong-Jae Seong, Seoung-Jin Hong, Seung-Ryong Ha, Young-Gi Hong, Hyo-Won Kim
Patients who underwent resection of maxilla due to benign or malignant tumor, or accident will have defect in palatal area. They get retention, support and stability from remaining tissues which are hardly optimal. The advantage of swing-lock attachment design is having multiple contacts on labial and lingual side of the abutment teeth by retentive strut and palatal bracing component. Because the force is distributed equally to abutment teeth, abutment teeth of poor prognosis can be benefited from it. It is also more advantageous to cover soft tissue defects which are hard to reach with conventional prosthesis...
October 2016: Journal of Advanced Prosthodontics
https://www.readbyqxmd.com/read/27826391/effect-of-gluma-desensitizer-on-the-retention-of-full-metal-crowns-cemented-with-rely-x-u200-self-adhesive-cement
#15
Shirin Lawaf, Ezatallah Jalalian, Roshanak Roshan, Arash Azizi
PURPOSE: Considering the importance of retention in the success and long-term clinical service of fixed partial dentures (FPDs) as well as the existing controversy regarding the effect of GLUMA desensitizer on the retention of full metal crowns cemented with RelyX U200 self-adhesive cement, this study aimed to assess the effect of GLUMA desensitizer on the retention of full metal crowns cemented using RelyX U200. MATERIALS AND METHODS: In this experimental study, 20 sound human premolars were prepared; a 0...
October 2016: Journal of Advanced Prosthodontics
https://www.readbyqxmd.com/read/27826390/prospective-randomized-clinical-trial-of-hydrophilic-tapered-implant-placement-at-maxillary-posterior-area-6-weeks-and-12-weeks-loading
#16
Seong-Beom Kim, Pil-Young Yun, Sang-Yun Kim, Yang-Jin Yi, Ji-Yun Kim, Young-Kyun Kim
PURPOSE: Early loading of implant can be determined by excellent primary stability and characteristic of implant surface. The implant system with recently improved surface can have load application 4-6 weeks after installing in maxilla and mandible. This study evaluated the effect of healing period to the stability of hydrophilic tapered-type implant at maxillary posterior area. MATERIALS AND METHODS: This study included 30 patients treated by hydrophilic tapered-type implants (total 41 implants at maxilla) and classified by two groups depending on healing period...
October 2016: Journal of Advanced Prosthodontics
https://www.readbyqxmd.com/read/27826389/influence-of-the-connection-design-and-titanium-grades-of-the-implant-complex-on-resistance-under-static-loading
#17
Su-Jung Park, Suk-Won Lee, Richard Leesungbok, Su-Jin Ahn
PURPOSE: The purpose of this study was to evaluate the resistance to deformation under static overloading by measuring yield and fracture strength, and to analyze the failure characteristics of implant assemblies made of different titanium grades and connections. MATERIALS AND METHODS: Six groups of implant assemblies were fabricated according to ISO 14801 (n=10). These consisted of the combinations of 3 platform connections (external, internal, and morse tapered) and 2 materials (titanium grade 2 and titanium grade 4)...
October 2016: Journal of Advanced Prosthodontics
https://www.readbyqxmd.com/read/27826388/investigation-of-the-effects-of-storage-time-on-the-dimensional-accuracy-of-impression-materials-using-cone-beam-computed-tomography
#18
Murat Alkurt, Zeynep Yeşıl Duymus, Numan Dedeoglu
PURPOSE: The storage conditions of impressions affect the dimensional accuracy of the impression materials. The aim of the study was to assess the effects of storage time on dimensional accuracy of five different impression materials by cone beam computed tomography (CBCT). MATERIALS AND METHODS: Polyether (Impregum), hydrocolloid (Hydrogum and Alginoplast), and silicone (Zetaflow and Honigum) impression materials were used for impressions taken from an acrylic master model...
October 2016: Journal of Advanced Prosthodontics
https://www.readbyqxmd.com/read/27826387/empirical-study-of-alginate-impression-materials-by-customized-proportioning-system
#19
Karani Kurtulus, Kenan Tüfekci
PURPOSE: Alginate mixers available in the market do not have the automatic proportioning unit. In this study, an automatic proportioning unit for the alginate mixer and controller software were designed and produced for a new automatic proportioning unit. With this device, it was ensured that proportioning operation could arrange weight-based alginate impression materials. MATERIALS AND METHODS: The variation of coefficient in the tested groups was compared with the manual proportioning...
October 2016: Journal of Advanced Prosthodontics
https://www.readbyqxmd.com/read/27826386/postoperative-irradiation-after-implant-placement-a-pilot-study-for-prosthetic-reconstruction
#20
Re-Mee Doh, Sungtae Kim, Ki Chang Keum, Jun Won Kim, June-Sung Shim, Han-Sung Jung, Kyeong-Mee Park, Moon-Kyu Chung
PURPOSE: On maxillofacial tumor patients, oral implant placement prior to postoperative radiotherapy can shorten the period of prosthetic reconstruction. There is still lack of research on effects of post-implant radiotherapy such as healing process or loading time, which is important for prosthodontic treatment planning. Therefore, this study evaluated the effects of post-implant local irradiation on the osseointegration of implants during different healing stages. MATERIALS AND METHODS: Custom-made implants were placed bilaterally on maxillary posterior edentulous area 4 weeks after extraction of the maxillary first molars in Forty-eight Sprague-Dawley rats...
October 2016: Journal of Advanced Prosthodontics
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