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https://www.readbyqxmd.com/read/29772035/two-step-immediate-loading-of-mandibular-overdentures-retained-by-mini-implants-a-prospective-clinical-study
#1
Jin-Hong Park, Sang-Wan Shin, Jeong-Yol Leea
PURPOSE: This study aimed to evaluate treatment outcomes of mandibular overdentures retained by two different mini-implant systems with ball attachments under a two-step immediate loading protocol. MATERIALS AND METHODS: This clinical trial investigated treatment outcomes of mandibular mini-implant overdentures in 45 edentulous patients. MDI implants (3M ESPE) and SlimLine implants (Dentium) were randomly selected for placement in the anterior mandible in each group (MDI = 21; SlimLine = 24) with a flapless surgical approach...
May 17, 2018: International Journal of Prosthodontics
https://www.readbyqxmd.com/read/29757470/sinus-augmentation-using-rhbmp-2-acs-in-a-mini-pig-model-influence-of-an-adjunctive-ceramic-bone-biomaterial
#2
Cristiano Susin, Jaebum Lee, Tiago Fiorini, Rubens Moreno de Freitas, Hsien-Chung Chiu, Hari S Prasad, Amanda N Buxton, Ulf Me Wikesjö
BACKGROUND: Recombinant human bone morphogenetic protein-2 in an absorbable collagen sponge carrier (rhBMP-2/ACS) has been shown to support significant bone formation when used to augment the maxillary sinus for implant dentistry. Nevertheless, bone biomaterials have been suggested to extend rhBMP-2/ACS with limited support of the merits of such approaches. OBJECTIVES: To evaluate local bone formation/dental implant osseointegration following implantation of rhBMP-2/ACS combined with a ceramic bone biomaterial using a mini-pig sinus augmentation model...
May 14, 2018: Journal of Clinical Periodontology
https://www.readbyqxmd.com/read/29755233/cervical-lift-up-laminoplasty-with-titanium-basket-plates-after-resection-of-intradural-tumor
#3
Keisuke Shirosaka, Kentaro Naito, Toru Yamagata, Masaki Yoshimura, Kenji Ohata, Toshihiro Takami
Background: Performing cervical laminoplasty after wide laminectomy may be technically demanding. The unique technique of cervical lift-up laminoplasty using titanium basket plates was applied for the reconstruction of cervical laminae after wide laminectomy for the resection of intradural tumors. Materials and Methods: This technical study included 14 cases that could be followed periodically for at least 6 months after surgery. Participants were 8 male and 6 female, with a mean age of 41...
January 2018: Journal of Craniovertebral Junction and Spine
https://www.readbyqxmd.com/read/29753819/use-of-the-novel-surgical-enhancement-tools-for-less-invasive-abbott-heartmate-3%C3%A2-implantation
#4
Julia Riebandt, Dominik Wiedemann, Paul Simon, Kamen Dimitrov, Guenther Laufer, Daniel Zimpfer
We present our initial experience with the novel Abbott surgical enhancement tools for less invasive HeartMate 3TM Left Ventricular Assist System (LVAS) implantation (Abbott, Chicago, IL, USA). Three new devices are introduced, a mini apical cuff with, a cuff holder and a new designed coring knife, facilitating access through left sided mini-thoracotomy.
May 10, 2018: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/29743418/minimally-invasive-aortic-valve-replacement-following-root-enlargement-on-too-narrow-annulus-to-perform-transcatheter-aortic-valve-implantation
#5
Kosuke Sakamoto, Toshinori Totsugawa, Arudo Hiraoka, Kentaro Tamura, Hidenori Yoshitaka, Taichi Sakaguchi
An 88-year-old woman was diagnosed with aortic stenosis and an aortic annulus that was too narrow to perform transcatheter aortic valve implantation. Surgery was performed through a 7-cm right mini-thoracotomy at the fourth intercostal space. A 19-mm aortic valve bioprosthesis was implanted after root enlargement. The fourth intercostal space was a suitable site for aortic root enlargement because of the shorter skin-to-root distance and the detailed exposure of the aortic valve after cutting the aortic wall...
May 9, 2018: International Heart Journal
https://www.readbyqxmd.com/read/29735852/evaluation-of-the-success-and-complication-rates-of-self-drilling-orthodontic-mini-implants
#6
Z Gurdan, J Szalma
Aims: Orthodontic mini-implants are important devices for successful anchorage management in orthodontics; however, the survival of these devices depends on several clinical factors. The aim of our study was to calculate the success and complication rates of orthodontic mini-implants. Materials and Methods: In this retrospective study, patients of our orthodontic department were enrolled, getting overall 59 orthodontic mini-implants during their orthodontic treatment in a 2-year period...
May 2018: Nigerian Journal of Clinical Practice
https://www.readbyqxmd.com/read/29729819/one-year-after-proximal-or-distal-periprosthetic-fracture-of-the-femur-two-conditions-with-divergent-outcomes
#7
D Eschbach, B Buecking, H Kivioja, M Fischer, T Wiesmann, R Zettl, L Oberkircher, J Barthel, R Aigner, S Ruchholtz, C Bliemel
INTRODUCTION: Arthroplasty of the hip and knee is 1 of the 20 most frequent operations in Germany. Periprosthetic fracture is one of the most feared complications following primary or revision arthroplasty. Present publication aims to analyse differences between patients with periprosthetic fracture around total knee arthroplasty (PFTKA) and patients with periprosthetic fracture around total hip arthroplasty (PFTHA) concerning demographics, clinical course, complications and return to pre-fracture mobility...
April 24, 2018: Injury
https://www.readbyqxmd.com/read/29721929/mini-review-cell-type-specific-optogenetic-vision-restoration-approaches
#8
Antoine Chaffiol, Jens Duebel
The expression of light-sensitive microbial opsins is a promising mutation-independent approach to restore vision in retinal degenerative diseases. Using viral vectors, optogenetic tools can be genetically expressed in various subpopulations of retinal neurons. The choice of cell type depends on the availability of surviving retinal cells. If cones are still alive but they lack outer segments, they can be targeted with optogenetic inhibitors, such as halorhodopsin. Alternatively, it is possible to bypass the photoreceptors and to target bipolar cells...
2018: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29717518/evaluation-of-the-accuracy-of-conventional-and-digital-impression-techniques-for-implant-restorations
#9
Renata Vasconcellos Moura, Alberto Noriyuki Kojima, Cintia Helena Coury Saraceni, Lucas Bassolli, Ivan Balducci, Mutlu Özcan, Alfredo Mikail Melo Mesquita
PURPOSE: The increased use of CAD systems can generate doubt about the accuracy of digital impressions for angulated implants. The aim of this study was to evaluate the accuracy of different impression techniques, two conventional and one digital, for implants with and without angulation. MATERIALS AND METHODS: We used a polyurethane cast that simulates the human maxilla according to ASTM F1839, and 6 tapered implants were installed with external hexagonal connections to simulate tooth positions 17, 15, 12, 23, 25, and 27...
May 1, 2018: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/29709359/minimally-invasive-mitral-valve-surgery-is-associated-with-excellent-resource-utilization-cost-and-outcomes
#10
Robert B Hawkins, J Hunter Mehaffey, Samuel M Kessel, Jolian J Dahl, Irving L Kron, John A Kern, Leora T Yarboro, Gorav Ailawadi
OBJECTIVES: Minimally invasive mitral valve surgery (mini-MVR) has numerous associated benefits. However, many studies fail to include greater-risk patients. We hypothesized that a minimally invasive approach in a representative cohort provides excellent outcomes with reduced resource utilization. METHODS: Mitral valve surgical records from 2011 to 2016 were paired with institutional financial records. Patients were stratified by approach and propensity-score matched to balance preoperative difference...
April 3, 2018: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29706220/asymmetric-extractions-in-a-patient-with-a-hopeless-maxillary-central-incisor-followed-by-treatment-with-mini-implant-anchorage
#11
Min-Ho Jung
Premolar extraction is 1 option for treatment of patients with malocclusion and severe crowding or protrusion. When the patient has missing or hopeless teeth other than premolars, it is possible to consider removal of those teeth to use the space to decrease crowding. A 15-year-old girl sought treatment for severe crowding. She had already lost her maxillary right first premolar as a result of caries 1 year previously and had a hopeless maxillary right central incisor. Her mandibular left first molar still caused discomfort even after endodontic treatment...
May 2018: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/29706213/influence-of-orthodontic-mini-implant-penetration-of-the-maxillary-sinus-in-the-infrazygomatic-crest-region
#12
Xueting Jia, Xing Chen, Xiaofeng Huang
INTRODUCTION: Mini-implants are widely used for predictable tooth movements, but insertion is often restricted by anatomic structures. The aims of this study were to investigate the incidence of penetration of mini-implants into the sinus and the relationship between penetration depth and sinus tissue. METHODS: Data from 32 patients who received mini-implants in the infrazygomatic crest were collected from a data base. The success rate of mini-implants was determined by clinical retrospective analysis...
May 2018: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/29703669/biomechanical-behavior-of-2-implant-and-single-implant-retained-mandibular-overdentures-with-conventional-or-mini-implants
#13
Marina Xavier Pisani, Anna Gabriella Camacho Presotto, Marcelo Ferraz Mesquita, Valentim Adelino Ricardo Barão, Daniel Takanori Kemmoku, Altair Antoninha Del Bel Cury
STATEMENT OF PROBLEM: The use of single or mini dental implants to retain mandibular overdentures is still questionable. PURPOSE: The purpose of this finite element analysis (FEA) study was to investigate the biomechanical behavior of 2- and single-implant-retained mandibular overdentures with conventional or mini implants. MATERIAL AND METHODS: Four 3-dimensional (3D) finite element models were constructed with the following designs of mandibular overdentures: 2 (group 2-C) and single (group 1-C) conventional external hexagon implants with ball or O-ring attachment and 2 (group 2-M) and single (group 1-M) 1-piece mini implants...
April 24, 2018: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/29701355/aortic-valve-replacement-with-perceval%C3%A2-bioprosthesis-initial-single-center-experience
#14
Diogo Rijo, Sara Simões Costa, João Pedro Monteiro, Fátima Neves, Luís Vouga, Paulo Neves, Paulo Ponce, Miguel Guerra
INTRODUCTION: Aortic valve replacement (AVR) is the gold standard for the treatment of severe or symptomatic aortic valve stenosis. Less invasive procedures have been developed as an alternative to the conventional technique of full sternotomy approach with stented prosthesis. The Perceval® aortic valve (LivaNova, Milan, Italy) is a sutureless bioprosthesis, of which several reports have shown promising results in terms of mortality, morbidity and hemodynamic performance, especially with a less invasive approach...
July 2017: Revista Portuguesa de Cirurgia Cardio-torácica e Vascular
https://www.readbyqxmd.com/read/29691558/-study-of-three-dimensional-anatomical-relationship-between-infrazygomatic-crest-and-maxillary-sinus-for-mini-screw-insertion
#15
Peng Wang, Zheng-Xi Chen, Jun Wu, Zhen-Qi Chen
PURPOSE: To measure the thickness of the infrazygomatic(IZ) crest above the maxillary first molar and analyze its relationship with maxillary sinus as to derive clinical implications and provide guidance for placements of orthodontic mini-screw. METHODS: Thirty seven cone-beam CT(CBCT) images of infrazygomatic crest sites were collected from data of 19 adult inter-treatment orthodontic patients. Based on the relationship of maxillary sinus floor and mesiobuccal root of the maxillary first molar, the subjects were divided into high sinus floor group (n=13) and low sinus floor group (n=24)...
December 2017: Shanghai Kou Qiang Yi Xue, Shanghai Journal of Stomatology
https://www.readbyqxmd.com/read/29684308/fracture-healing-and-bone-remodeling-with-human-standard-sized-magnesium-versus-polylactide-co-glycolide-plate-and-screw-systems-using-a-mini-swine-craniomaxillofacial-osteotomy-fixation-model
#16
Benoît Schaller, John Patrik Matthias Burkhard, Madeleine Chagnon, Stefan Beck, Thomas Imwinkelried, Michel Assad
PURPOSE: This study compared the degradation profile, safety, and efficacy of bioresorbable magnesium alloy and polylactide-co-glycolide (PLGA) polymer osteosynthesis systems for the treatment of fractures in a load-sharing maxillofacial environment using a new mini-swine fracture fixation model. MATERIALS AND METHODS: Two types of clinically relevant situations were evaluated in 5 Yucatan miniature pigs. Defined porcine midface osteotomies of the supraorbital rim and zygoma were created and fixed with either a coated magnesium (test animals) or PLGA plate and screw osteosynthesis system (control animals)...
March 31, 2018: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29683084/g%C3%A3-ttingen-minipigs-in-ocular-research
#17
Stephanie M Shrader, William F Greentree
Since their development in the 1960s, Göttingen minipigs have become a popular nonrodent animal model in biomedical research, especially for ocular studies, because of their ease of handling, size, well-monitored genetics, and ocular anatomy that is similar to humans. The purpose of this mini-review is to introduce the reader to the various ways in which this animal model is currently being utilized in ocular research and to provide an overview of the diagnostic modalities that aid in this research. To date, the Göttingen minipig has been used for a variety of ocular research endeavors, including studies evaluating the safety and efficacy of ocular therapeutics, glaucoma etiopathogenesis and treatment, novel biomaterials, surgical procedures, and implantable materials/devices...
January 1, 2018: Toxicologic Pathology
https://www.readbyqxmd.com/read/29682889/fkbp12-6-protects-heart-from-angii-induced-hypertrophy-through-inhibiting-ca-2-calmodulin-mediated-signalling-pathways-in-vivo-and-in-vitro
#18
Yun-Fei Xiao, Zhi-Xiong Zeng, Xiao-Hui Guan, Ling-Fang Wang, Chan-Juan Wang, Huidong Shi, Weinian Shou, Ke-Yu Deng, Hong-Bo Xin
We previously observed that disruption of FK506-binding protein 12.6 (FKBP12.6) gene resulted in cardiac hypertrophy in male mice. Studies showed that overexpression of FKBP12.6 attenuated thoracic aortic constriction (TAC)-induced cardiac hypertrophy in mice, whereas the adenovirus-mediated overexpression of FKBP12.6 induced hypertrophy and apoptosis in cultured neonatal cardiomyocytes, indicating that the role of FKBP12.6 in cardiac hypertrophy is still controversial. In this study, we aimed to investigate the roles and mechanisms of FKBP12...
April 22, 2018: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/29670883/video-assisted-mini-open-sublay-vamos-a-simple-hybrid-approach-for-lateral-incisional-hernias
#19
Robert Schwab, Joachim Sahm, Arnulf Gregor Willms
Purpose: The purpose is to present a new hybrid approach of lateral incisional hernia repair associated with reduced operative trauma and anatomically optimal mesh placement. Methods: Video-Assisted Mini-Open Sublay (VAMOS) consists of a laparoscopic atraumatic dissection of the hernia sac, diaphanoscopy, laparoscopically-assisted closure of the fascial gap and mesh placement in sublay position through a minimized skin incision. Feasibility of this concept was assessed in a cohort of 7 consecutive patients...
2018: Frontiers in Surgery
https://www.readbyqxmd.com/read/29659105/lyso-dgts-lipid-isolated-from-microalgae-enhances-pon1-activities-in-vitro-and-in-vivo-increases-pon1-penetration-into-macrophages-and-decreases-cellular-lipid-accumulation
#20
Loureen Dahli, Dana Atrahimovich, Jacob Vaya, Soliman Khatib
High-density lipoprotein (HDL) plays an important role in preventing atherosclerosis. The antioxidant effect of HDL is mostly associated with paraoxonase 1 (PON1) activity. Increasing PON1 activity using nutrients might improve HDL function and quality and thus, decrease atherosclerotic risk. We previously isolated and identified a novel active compound, lyso-DGTS (C20:5,0) from Nannochloropsis sp. ethanol extract. In the present study, its effect on PON1 activities was examined and the mechanism by which the compound affects PON1 activity was explored...
April 16, 2018: BioFactors
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