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Journal of Prosthodontic Research

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https://www.readbyqxmd.com/read/30385332/relationship-between-oral-stereognostic-ability-and-dietary-intake-in-older-japanese-adults-with-complete-dentures
#1
Motoyoshi Fukutake, Kazunori Ikebe, Hitomi Okubo, Ken-Ichi Matsuda, Kaori Enoki, Chisato Inomata, Hajime Takeshita, Yusuke Mihara, Kodai Hatta, Yasuyuki Gondo, Kei Kamide, Yukie Masui, Tatsuro Ishizaki, Yasumichi Arai, Yoshinobu Maeda
PURPOSE: Oral stereognostic ability (OSA) is a useful indicator of oral perception to recognize food characteristics during mastication. Previous studies have shown associations between dietary intake and oral health status, such as taste perception. However, the effect of oral sensory ability on dietary intake is unclear. The purpose of this study was to investigate the association between oral sensory ability and dietary intake in older Japanese complete denture wearers. METHODS: This cross-sectional study included 164 participants aged 69-71 or 79-81years old, wearing both maxillary and mandibular complete dentures...
October 29, 2018: Journal of Prosthodontic Research
https://www.readbyqxmd.com/read/30385331/influence-of-preparation-design-and-spacing-parameters-on-the-risk-of-chipping-of-crowns-made-with-cerec-bluecam-before-cementation
#2
A Arena, P Baldissara, L Ciocca, R Scotti, C Monaco
PURPOSE: To evaluate the influence of the preparation design and spacing parameters on the risk of chipping of crowns made by CEREC Bluecam before cementation. METHODS: A knife-edge preparation and a chamfer preparation were made on upper premolars. The teeth were scanned and two Co-Cr alloy replicas were made. Fifteen full crowns were manufactured for four groups using CEREC. The groups differed in type of preparation (knife-edge (KE) or chamfer (CHA)) and spacing parameters: spacer (0 or 150μm), marginal adhesive gap (10 or 50 or 150μm) and margin thickness (0 or 300μm)...
October 29, 2018: Journal of Prosthodontic Research
https://www.readbyqxmd.com/read/30385330/effect-of-multi-purpose-primers-on-the-bond-durability-between-tri-n-butylborane-initiated-resin-and-gold-alloy
#3
Haruto Hiraba, Hiroshi Nogawa, Hiroyasu Koizumi, Akihisa Kodaira, Shunsuke Akahane
PURPOSE: This study investigated the influence of an interaction between sulfur-containing monomers and other monomers in multipurpose primers on the bond durability of a tri-n-butylborane (TBB)-initiated acrylic resin to a gold alloy. METHODS: The disk-shaped adherend materials were prepared from a gold alloy (Casting Gold M.C. Type IV). Two multipurpose-primers (Universal Primer, Monobond Plus), four metal primers containing an organic sulfur compound (M.L. Primer, Alloy Primer, Metaltite, and V-Primer), and three acidic primers (Estenia Opaque Primer, Acryl Bond, and Super-Bond Liquid) were used...
October 29, 2018: Journal of Prosthodontic Research
https://www.readbyqxmd.com/read/30309743/titanium-clasp-fabricated-by-selective-laser-melting-cnc-milling-and-conventional-casting-a-comparative-in-vitro-in-vitro-study
#4
Fa-Bing Tan, Jin-Lin Song, Chao Wang, Yu-Bo Fan, Hong-Wei Dai
PURPOSE: This study aimed to investigate the effects of selective laser melting (SLM), milling methods, and casting on the behavior of titanium clasp. METHODS: The clasp and its die simulating the molar were designed using 3D software. Clasp specimens were fabricated using SLM approaches (SLM Ti) and computerized numerical control (CNC) milling technology (Milling CPTi). Cast clasps of the same forms were also prepared as controls using titanium alloy powder (Cast Ti) and commercial pure titanium (Cast CPTi), following the conventional casting methods...
October 8, 2018: Journal of Prosthodontic Research
https://www.readbyqxmd.com/read/30269880/the-number-of-implants-required-to-support-a-maxillary-overdenture-a-systematic-review-and-meta-analysis
#5
REVIEW
Fabrizio Di Francesco, Gennaro De Marco, Ugo Antonello Gironi Carnevale, Michele Lanza, Alessandro Lanza
PURPOSE: The number of implants needed to support a maxillary overdenture is still a controversial issue. The aim of this systematic review was to investigate the number of implants required to support a maxillary overdenture in order to obtain optimal treatment outcomes in terms of implant survival, overdenture longevity and patient satisfaction. STUDY SELECTION: Pubmed and EMBASE databes were systematically searched and complemented by hand searching from 2000 to 2017...
September 27, 2018: Journal of Prosthodontic Research
https://www.readbyqxmd.com/read/30266664/evaluation-of-salivary-cortisol-levels-in-relation-to-dento-maxillary-prosthesis-adjustment
#6
Moe Kosaka, Yuka I Sumita, Hisashi Taniguchi, Toshihiko Suzuki, Keiichi Sasaki
PURPOSE: The purpose of this study was to investigate the influence of dento-maxillary prosthesis adjustment procedure on levels of salivary cortisol. METHODS: Nine participants (six men, three women, mean age 65.9 years) took part in this study. Saliva samples were collected before and after dento-maxillary prosthesis adjustment during the four different visits. Free cortisol levels were determined using a salivary cortisol immunoassay kit (expanded-range high-sensitivity salivary cortisol enzyme immunoassay kit, Salimetrics)...
September 25, 2018: Journal of Prosthodontic Research
https://www.readbyqxmd.com/read/30220621/effect-of-laser-groove-treatment-on-shear-bond-strength-of-resin-based-luting-agent-to-polyetheretherketone-peek
#7
Hiroki Tsuka, Koji Morita, Kan Kato, Hitomi Kimura, Hitoshi Abekura, Isao Hirata, Koichi Kato, Kazuhiro Tsuga
PURPOSE: The mechanical properties of polyetheretherketone (PEEK) are ideally suited for fixed dental prostheses. However, PEEK typically has low adhesion strength to resin-based luting agent. This study assessed the shear bond strength between laser groove treated PEEK and resin-based luting agent. METHODS: A total of 230 specimens were randomly divided into five groups (n=46): no-treatment, air abrasion treatment, 100μm-deep, 150μm-deep, and 200μm-deep laser groove treatments...
September 13, 2018: Journal of Prosthodontic Research
https://www.readbyqxmd.com/read/30220620/development-of-three-dimensional-facial-expression-models-using-morphing-methods-for-fabricating-facial-prostheses
#8
Ayumi Matsuoka, Fumi Yoshioka, Shogo Ozawa, Jun Takebe
PURPOSE: It is essential to fabricate a best-fit three-dimensional (3D) facial prosthesis model capable of facial expressions. In order for the facial prosthesis to remain in position, especially around marginal areas subject to movement, a new method of making 3D facial expression models using time-series data allowing changes in facial expression by morphing technique was developed. METHODS: Seven normal subjects and seven patients with nasal defects or nasal deformities participated in this study...
September 13, 2018: Journal of Prosthodontic Research
https://www.readbyqxmd.com/read/30205949/current-status-of-zirconia-implants-in-dentistry-preclinical-tests
#9
REVIEW
Hironobu Nishihara, Mireia Haro Adanez, Wael Att
PURPOSE: This systematic review aimed to provide an overview of zirconia implants as well as regarding the outcome of the implant-restorative complex in preclinical studies. STUDY SELECTION: An electronic search of the literature prior to July 2017 was performed to identify all articles related to preclinical research on zirconia implants. The search was conducted using MEDLINE (National Library of Medicine) and PubMed without restrictions concerning the date of publication...
September 8, 2018: Journal of Prosthodontic Research
https://www.readbyqxmd.com/read/30197226/tongue-function-is-important-for-masticatory-performance-in-the-healthy-elderly-a-cross-sectional-survey-of-community-dwelling-elderly
#10
Keiichiro Sagawa, Hiroyasu Furuya, Yuki Ohara, Mitsuyoshi Yoshida, Hirohiko Hirano, Katsuya Iijima, Takeshi Kikutani
PURPOSE: The aim of this study was to determine the influences of oral motor function such as tongue function and bite force on masticatory performance in the elderly. METHODS: We randomly selected 245 subjects who has 28 natural teeth among community-dwelling elderly. We evaluated masticatory performance using a gummy jelly, and also measured bite force, tongue muscle force, and the speed of tongue movement. RESULTS: We found that reduced masticatory performance to be associated with decreased the speed of tongue movement and/or tongue muscle force, indicating that reduced oral motor function also influences masticatory performance...
September 6, 2018: Journal of Prosthodontic Research
https://www.readbyqxmd.com/read/30166196/influence-of-different-implant-operative-procedures-on-morphologic-changes-in-peri-implant-alveolar-bone-and-soft-tissue-a-one-year-prospective-clinical-study
#11
Tokinori Kato, Tamaki Nakano, Yuya Fujita, Tomoyuki Kobayashi, Hirofumi Yatani
PURPOSE: To prospectively evaluate morphological changes in the horizontal and vertical dimensions of peri-implant tissue at 1-year post-prosthesis implantation. METHODS: Thirty-four patients who had received implants with conical connections in the aesthetic region were included in the follow-up study. Patients had received either traditional delayed implant placement or tissue augmentation with or without immediate implant placement. The horizontal and vertical dimensions of the buccal alveolar bone of the implant and its surrounding soft tissues were then evaluated using cone beam computed tomography...
October 2018: Journal of Prosthodontic Research
https://www.readbyqxmd.com/read/30139715/the-effect-of-low-magnitude-high-frequency-loading-on-peri-implant-bone-healing-and-implant-osseointegration-in-beagle-dogs
#12
Shuhua Wang, Toru Ogawa, Sheng Zheng, Makiko Miyashita, Taichi Tenkumo, Zhiyuan Gu, Wenhai Lian, Keiichi Sasaki
PURPOSE: Low-magnitude, high-frequency (LMHF) loading plays an important role in bone healing. The present study aimed to evaluate the effect of LMHF loading applied directly to titanium dental implants on peri-implant bone healing and implant osseointegration. METHODS: The mandibular premolars and molars were extracted from six male Beagle dogs. Three months post-extraction, each of the six dogs had three titanium implants (Aadva Standard Implant Narrow, Φ3.3×8mm) inserted into the mandibular premolar and molar area (three implants per side)...
October 2018: Journal of Prosthodontic Research
https://www.readbyqxmd.com/read/30121182/perceptibility-and-acceptability-thresholds-of-simulated-facial-skin-color-differences
#13
Panagiotis Lagouvardos, Nikolina Spyropoulou, Gregory Polyzois
PURPOSE: This study investigates the perceptibility and acceptability thresholds (PT, AT) of observers for L*, a* and b* facial skin differences, very important for the fabrication of a maxillofacial prosthesis. METHODS: One image (10×13.3cm/300dpi), simulating standard facial skin color, and 27 smaller images (4.9×6.0cm/300dpi), simulating shades with different RGB values from the standard were made, using Adobe-Photoshop CS3. The RGB values, were based on 9 stepped increases in L*, a* and b*...
October 2018: Journal of Prosthodontic Research
https://www.readbyqxmd.com/read/30082221/design-of-the-spacer-for-brachytherapy-using-198-au-grain-for-carcinoma-of-the-tongue-as-a-tool-of-perioperative-oral-management
#14
Hanako Suenaga, Toru Tamahara, Mina Dodo, Toshimitsu Murakami, Satoshi Sasaki, Kengo Ito, Keiichi Jingu, Takeyoshi Koseki, Keiichi Sasaki
PATIENTS: Seventy-one and 73 years-old males visited a perioperative oral care support center to receive perioperative oral management during tongue cancer (T1 N0 M0 ) treatment. To improve their quality of life (QOL) during brachytherapy while preventing radiation-related complications including osteoradionecrosis due to 198 Au grain brachytherapy, spacers for their maxilla and mandible were designed with consideration of wearing condition at an isolation ward. The spacer was created with unilateral design and with consideration of the tongue mobility during day and night...
October 2018: Journal of Prosthodontic Research
https://www.readbyqxmd.com/read/30054172/rehabilitation-of-ectodermal-dysplasia-patients-presenting-with-hypodontia-outcomes-of-implant-rehabilitation-part-1
#15
Mariela Machado, Christine Wallace, Bruce Austin, Suhas Deshpande, Agnes Lai, Terry Whittle, Iven Klineberg
PURPOSE: This study has evaluated the pre and post perceptions of patients with ectodermal dysplasia (ED) who have been referred to Westmead Centre for Oral Health for treatment with dental implants. METHODS: Six patients with ED and hypodontia were treated with new maxillary complete dental prostheses or fixed implant prostheses, and a mandibular fixed dental prosthesis with implants. Patient perceptions were recorded with a 10cm visual analogue scale (VAS). All patients were asked to draw a line on the VAS which best described their feelings regarding aesthetics, chewing, diet and speech...
October 2018: Journal of Prosthodontic Research
https://www.readbyqxmd.com/read/30054171/highly-producible-method-for-determination-of-occlusal-vertical-dimension-relationship-between-measurement-of-lip-contact-position-with-the-closed-mouth-and-area-of-upper-prolabium
#16
Yuko Watarai, Fumi Mizuhashi, Toshihide Sato, Kaoru Koide
PURPOSE: A new method inducing the physiologic rest position of the mandible using the lip contact position with the closed mouth have compared with those obtained using conventional methods of placing the mandible in the physiologic rest position. METHODS: The lip contact position with the closed mouth as a method was investigated whether the technique was useful for determining the occlusal vertical dimension. The relationship between the space between the maxillary and mandibular front teeth in the lip contact position with the closed mouth and the areas of the prolabia was also investigated...
October 2018: Journal of Prosthodontic Research
https://www.readbyqxmd.com/read/30006264/masticatory-function-of-conventional-complete-denture-wearers-changing-to-2-implant-retained-mandibular-overdentures-clinical-factor-influences-after-1year-of-function
#17
Anna Paula da Rosa Possebon, Raissa Micaella Marcello-Machado, Amália Machado Bielemann, Alessandra Julie Schuster, Luciana de Rezende Pinto, Fernanda Faot
PURPOSE: Evaluate how clinical factors related to conventional complete denture (CCD) wearers, can influence masticatory function (MF) of totally edentulous patients before and after one-year transitioning to implant-retained mandibular overdentures (IMO). METHODS: Forty patients using CCD were rehabilitated with IMO and their MF was evaluated by: (i) ST_X50: theoretical aperture through which 50% of the weight of the particles would pass; (ii) STB: distribution homogeneity of the crushed particles...
October 2018: Journal of Prosthodontic Research
https://www.readbyqxmd.com/read/29983378/influence-of-polymerization-time-on-properties-of-dual-curing-cements-in-combination-with-high-translucency-monolithic-zirconia
#18
Mario Alovisi, Nicola Scotti, Allegra Comba, Elena Manzon, Elena Farina, Damiano Pasqualini, Riccardo Michelotto Tempesta, Lorenzo Breschi, Milena Cadenaro
PURPOSE: The aim of this in vitro study was to assess conversion degree (DC), micro-hardness (MH) and bond strength of two dual-curing resin cements employed under translucent monolithic zirconia irradiated with different time protocols. METHODS: 84 square shaped samples of 1mm thickness were prepared from high translucency zirconia blocks and divided into two groups (n=24) according to the cement employed: (1) Rely-X Ultimate; (2) Panavia SA. Each group was further divided into 3 subgroups (n=8) according to the irradiation time: (a) no light; (b) 20s; (c) 120s...
October 2018: Journal of Prosthodontic Research
https://www.readbyqxmd.com/read/29983377/a-systematic-review-and-meta-analysis-on-the-clinical-outcome-of-zirconia-implant-restoration-complex
#19
REVIEW
Mireia Haro Adánez, Hironobu Nishihara, Wael Att
PURPOSE: This systematic review evaluates the clinical outcome of zirconia implant-associated survival and success rates, marginal bone loss, and implant-restoration complex integrity. STUDY SELECTION: Using the preferred reporting items for systematic reviews and meta-analysis (PRISMA) guidelines, studies including ≥10 patients restored with zirconia implants supporting single crowns (SCs) or fixed dental prostheses (FDPs) prior to January 2017 were identified...
October 2018: Journal of Prosthodontic Research
https://www.readbyqxmd.com/read/29936052/five-year-clinical-outcomes-and-survival-of-chairside-cad-cam-ceramic-laminate-veneers-a-retrospective-study
#20
Farahnaz Nejatidanesh, Ghazal Savabi, Mehrak Amjadi, Mahsa Abbasi, Omid Savabi
PURPOSE: The aim of this clinical study was to compare the survival, modified California Dental Association (CDA) criteria, and periodontal parameters of laminate veneers made with Empress CAD and emax CAD over 60 months. METHODS: One hundred and ninety seven ceramic laminate veneers were placed in 71 patients in a private practice. The restorations were made using CEREC AC Bluecam with Empress CAD and emax CAD blocks. Modified CDA guidelines were used to evaluate clinical performance of the restorations...
October 2018: Journal of Prosthodontic Research
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