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https://www.readbyqxmd.com/read/28924826/volumetric-and-linear-changes-at-dental-implants-following-grafting-with-volume-stable-three-dimensional-collagen-matrices-or-autogenous-connective-tissue-grafts-6-month-data
#1
Nadja Naenni, Stefan P Bienz, Goran I Benic, Ronald E Jung, Christoph H F Hämmerle, Daniel S Thoma
OBJECTIVES: The objective of this study was to test whether or not soft tissue augmentation with a volume-stable collagen matrix (VCMX) leads to similar volume gain around dental implants compared to autogenous subepithelial connective tissue graft (SCTG). MATERIALS AND METHODS: In 12 adult beagle dogs, immediate implants were placed with simultaneous guided bone regeneration. After 25-45 weeks, soft tissue augmentation was randomly performed using VCMX, SCTG, or a sham-operated control...
September 18, 2017: Clinical Oral Investigations
https://www.readbyqxmd.com/read/28924526/first-report-of-tripled-retromolar-foramina
#2
Puhan He, Joe Iwanaga, Mindy K Truong, Nimer Adeeb, R Shane Tubbs, Koh-Ichi Yamaki
The retromolar foramen (RMF) is the bony entrance of the retromolar canal, through which a neurovascular bundle runs. It is essential to locate such anatomic variants in a patient in order to avoid complications in surgery, implant placement, or anesthesia of the area. To our knowledge, there has only been one case report of supernumerary RMF, which reported one bilateral doubled retromolar foramina and one doubled left RMF. We present an extremely rare case in which a right triple RMF was observed on cone beam computed tomography in a cadaver...
July 7, 2017: Curēus
https://www.readbyqxmd.com/read/28923546/influence-of-implant-abutment-material-and-ceramic-thickness-on-optical-properties
#3
Bundhit Jirajariyavej, Peeraphorn Wanapirom, Chuchai Anunmana
STATEMENT OF PROBLEM: Anterior shade matching is an essential factor influencing the esthetics of a ceramic restoration. Dentists face a challenge when the color of an implant abutment creates an unsatisfactory match with the ceramic restoration or neighboring teeth. PURPOSE: The purpose of this in vitro study was to evaluate the influence of abutment material and ceramic thickness on the final color of different ceramic systems. MATERIAL AND METHODS: Four experimental and control ceramic specimens in shade A3 were cut from IPS e...
September 16, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28922874/noninvasive-transfontanelle-monitoring-of-the-intracerebral-pressure-in-comparison-with-an-invasive-intradural-intracranial-pressure-device-a-prospective-study
#4
Bedjan Behmanesh, Marco Bartels, Florian Gessler, Natalie Filmann, Volker Seifert, Matthias Setzer, Thomas M Freiman
BACKGROUND: We previously introduced a novel noninvasive technique of intracranial pressure (ICP) monitoring in children with open fontanelles. OBJECTIVE: To compare the ICP obtained by our new technique to the ICP derived from an intradurally implanted ICP measurement device (external ventricular drain, subdural ICP device). METHODS: Children with open fontanelles and need of intracranial monitoring were included in this study. A standard ICP probe was placed upon the frontal fontanelle and data were compared with the values recorded by an already invasively implanted subdural ICP technique...
October 1, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28920547/decreased-postoperative-gluteus-medius-muscle-cross-sectional-area-measured-by-computed-tomography-scan-in-patients-with-intertrochanteric-fractures-nailing
#5
Mitsuaki Noda, Yasuhiro Saegusa, Masayasu Takahashi, Yuma Takada, Masahiro Fujita, Issei Shinohara
BACKGROUND: In patients with femoral intertrochanteric fractures treated by cephalomedullary (CM) nailing, abduction force reportedly decreased by 25-30% during the postoperative follow-up period. The purpose of the current study is to evaluate the cross-sectional area (CSA) and adipose tissue ratio (ATR) of the gluteus medius muscle on the postoperative computed tomography (CT) view, expecting this graphic study will support clinical results. MATERIALS AND METHODS: A total of 27 patients with femoral intertrochanteric fractures treated by CM femoral nail implants completed the study...
September 2017: Journal of Orthopaedic Surgery
https://www.readbyqxmd.com/read/28917605/outcomes-using-wedge-stem-with-full-hydroxiapatite-coverage-with-a-minimum-of-5-years-follow-up
#6
D Godoy-Monzon, M Buttaro, F Comba, G Zanotti, F Piccaluga, I Neira-Borrajo
INTRODUCTION: Total Hip Arthroplsty (THA) using uncemented stems is a popular practice in the last decades. The implant survivorship is crtitical and a less than 10% revision at 10 years is been propesed for commercialization and use. OBJECTIVE: To analyse the clinicoradiological results of an uncemented hydroxiapatite covered wedge stem with a 5 years minimum follow up. MATERIAL AND METHODS: Prospective study, patients aged from 21-75years were included...
September 13, 2017: Revista Española de Cirugía Ortopédica y Traumatología
https://www.readbyqxmd.com/read/28914597/combination-of-ultrasonic-decontamination-soft-tissue-curettage-and-submucosal-air-polishing-with-povidone-iodine-application-for-non-surgical-therapy-of-peri-implantitis-12-months-clinical-outcomes
#7
Jamal M Stein, Christian Hammächer, Sareh Said-Yekta Michael
BACKGROUND: The aim of this study was to evaluate the clinical outcomes of a concept for non-surgical peri-implantitis combining stepwise mechanical debridement measures with adjuvant Povidone-iodine application with and without systemic antibiotics. METHODS: 45 patients with chronic periodontitis comprising 164 screw-typed implants with peri-implantitis were included. Peri-implantitis was defined as radiographic bone loss of >2 mm, probing pocket depth (PD) ≥5 mm with bleeding on probing (BOP)...
September 15, 2017: Journal of Periodontology
https://www.readbyqxmd.com/read/28914400/an-in-vivo-study-on-endothelialized-vascular-grafts-produced-by-autologous-biotubes-and-adipose-stem-cells-adscs
#8
Yu Chieh Tseng, Jun Neng Roan, Ying Chiang Ho, Chih Chan Lin, Ming Long Yeh
Currently, commercial synthetic vascular grafts made from Dacron and ePTFE for small-diameter, vascular applications (<6 mm) show limited reendothelization and are less compliant, often resulting in thrombosis and intimal hyperplasia. Although good blood compatibility can be achieved in autologous arteries and veins, the number of high quality harvest sites is limited, and the grafts are size-mismatched for use in the fistula or cardiovascular bypass surgery; thus, alternative small graft substitutes must be developed...
September 15, 2017: Journal of Materials Science. Materials in Medicine
https://www.readbyqxmd.com/read/28913569/antegrade-intramedullary-kirschner-wire-fixation-of-displaced-metacarpal-shaft-fractures
#9
E M van Bussel, R M Houwert, T J M Kootstra, M van Heijl, D Van der Velde, Ph Wittich, J Keizer
PURPOSE: The objective of this study was to analyze complications and patient-related functional outcome after antegrade intramedullary Kirschner-wire fixation of metacarpal shaft fractures. METHODS: All consecutive patients treated from January 2010 until December 2015 were retrospectively analyzed using patient logs and radiographic images. Indications for operative fixation were angulation > 40°, shortening > 2 mm, or rotational deficit. Complications were registered from the patient logs...
September 14, 2017: European Journal of Trauma and Emergency Surgery: Official Publication of the European Trauma Society
https://www.readbyqxmd.com/read/28913557/improved-joint-line-restitution-in-unicompartmental-knee-arthroplasty-using-a-robotic-assisted-surgical-technique
#10
Yannick Herry, Cécile Batailler, Timothy Lording, Elvire Servien, Philippe Neyret, Sebastien Lustig
PURPOSE: Joint-line restitution is one objective of unicompartmental knee arthroplasty (UKA). However, the joint line is often lowered when resurfacing femoral implants are used. The aim of this study was to compare the joint-line height in UKA performed by robotic-assisted and conventional techniques. METHODS: This retrospective case-control study compared two matched groups of patients receiving a resurfacing UKA between 2013 and 2016 by either a robotic-assisted (n = 40) or conventional (n = 40) technique...
September 14, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28911958/application-of-real-time-surgical-navigation-for-zygomatic-implant-insertion-in-patients-with-severely-atrophic-maxilla
#11
Feng Wang, Michael M Bornstein, Kuofeng Hung, Shengchi Fan, Xiaojun Chen, Wei Huang, Yiqun Wu
PURPOSE: Computer-aided treatment technology has extended its applications to oral implantology. This report describes the authors' initial clinical experience on the application of a commercially available navigation system (VectorVision) in zygomatic implant (ZI) insertion in the severely atrophic maxilla. MATERIALS AND METHODS: This was a retrospective longitudinal study. Eligible patients with maxillary edentulism who were treated with ZI placement were enrolled...
August 24, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28906507/influence-of-the-diameter-of-dental-implants-replacing-single-molars-3-to-6-year-follow-up
#12
Jose Alfredo Mendonça, Plinio Mendes Senna, Carlos Eduardo Francischone, Carlos Eduardo Francischone Junior, Bruno Salles Sotto-Maior
PURPOSE: The aim of this study was to evaluate the influence of the implant diameter on marginal bone remodeling around dental implants replacing single molars after a follow-up period of 3 to 6 years. MATERIALS AND METHODS: Patients who received dental implants with an external hexagon platform in healed sites to support a single metal-ceramic crown in the molar region were recalled to the office. The implantation sites and implant length information were recorded, and the implants were divided according to the implant diameter: regular (RP) or wide (WP)...
September 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28906506/stability-of-grafted-implant-placement-sites-after-sinus-floor-elevation-using-a-layering-technique-10-year-clinical-and-radiographic-results
#13
Fouad Khoury, Pierre Keller, Philip L Keeve
PURPOSE: To evaluate long-term survival rates and radiographic stability of sinus floor elevations carried out using a two-layer grafting technique. MATERIALS AND METHODS: Records were analyzed for patients treated with sinus floor elevations using a modified technique. Phycogenic hydroxyapatite (Algipore, Dentsply Sirona Implants) and autogenous bone particles harvested from intraoral sites were grafted in two distinct layers after elevation of the sinus mucosae...
September 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28906503/release-of-irretrievable-abutment-healing-caps-using-cooling-proof-of-concept-and-clinical-recommendations
#14
Kifah Blal, Ori Rimon, Nardy Casap
PURPOSE: To study the relation between irretrievable abutment healing caps (AHCs), temperature, and the torque required to remove the AHCs from implants. MATERIALS AND METHODS: Twenty implants, 13 mm long and 4.2 mm in diameter, were inserted into four acrylic boxes and covered with acrylic resin. An AHC was screwed into each implant, using a 30 N/cm torque. The acrylic blocks were placed in a 37°C water bath, and subsequently, a block was removed from the bath, the AHCs were cooled, and the torque needed to release each AHC from the implant was measured using a torque wrench...
September 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28905208/current-total-knee-designs-does-baseplate-roughness-or-locking-mechanism-design-affect-polyethylene-backside-wear
#15
Zachary W Sisko, Matthew G Teeter, Brent A Lanting, James L Howard, Richard W McCalden, Douglas D Naudie, Steven J MacDonald, Edward M Vasarhelyi
BACKGROUND: Tibial baseplate roughness and polyethylene-insert micromotion resulting from locking-mechanism loosening can lead to polyethylene backside wear in TKAs. However, many retrieval studies examining these variables have evaluated only older TKA implant designs. QUESTIONS: We used implant-retrieval analysis to examine if there were differences in: (1) backside damage scores, (2) backside damage modes, and (3) backside linear wear rates in five TKA implant designs owing to differing baseplate surface roughness and locking mechanisms...
September 13, 2017: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/28902822/assessing-the-effect-of-endoprosthetic-repair-of-the-thoracic-portion-on-aortic-remodelling-after-surgical-correction-for-debakey-type-i-dissection
#16
V V Bazylev, M G Shmatkov, D A Zakharov, Z A Morozov
OBJECTIVE: The purpose of the study was to evaluate the influence of endoprosthetic repair of the aortic thoracic portion on remodelling of the descending aorta in patients after the surgical stage of correction for DeBakey type I aortic dissection. PATIENTS AND METHODS: The authors retrospectively analysed a group of 12 patients (9 men and 3 women) subjected to endoprosthetic repair of the aortic thoracic portion after previously performed surgical correction of the ascending aorta and its braches...
2017: Angiologii︠a︡ i Sosudistai︠a︡ Khirurgii︠a︡, Angiology and Vascular Surgery
https://www.readbyqxmd.com/read/28902718/effect-of-drug-coated-balloon-on-stent-restenosis-neointimal-proliferation-and-coronary-dissection-an-optical-coherence-tomography-analysis
#17
Taku Fukushima, Takashi Ashikaga, Shunji Yoshikawa, Yu Hatano, Daisuke Ueshima, Takanobu Yamamoto, Maejima Yasuhiro, Mitsuaki Isobe
AIM: The aim of this study was to assess the acute and mid-term effects of drug-coated balloon (DCB) in terms of the healing process of non-flow-limiting dissections and changes in the neointimal area after DCB treatment using frequency domain optical coherence tomography (FD-OCT). PATIENTS AND METHODS: Thirty-six consecutive patients with in-stent restenosis pretreated with a scoring balloon were evaluated (19 and 17 patients with and without a DCB, respectively)...
September 11, 2017: Coronary Artery Disease
https://www.readbyqxmd.com/read/28900712/-starflo-a-suprachoroidal-drainage-implant-in-glaucoma-surgery
#18
S König, C W Hirneiß
BACKGROUND: The STARflo Glaucoma Device (iSTAR Medical, Wavre, Belgium) offers a new approach to bleb-free filtering surgery in which the intraocular pressure (IOP) is lowered by supporting outflow of the aqueous humor into the suprachoroidal space. MATERIALS AND METHODS: On the basis of a case series of 9 patients with open-angle glaucoma (OAG) unmanageable by drug-based treatment, intra- and postoperative experiences with the implant are presented. The implant, the implantation procedure, and the first results 6 months postoperatively are described...
September 12, 2017: Der Ophthalmologe: Zeitschrift der Deutschen Ophthalmologischen Gesellschaft
https://www.readbyqxmd.com/read/28900544/effect-of-spherical-aberration-on-the-optical-quality-after-implantation-of-two-different-aspherical-intraocular-lenses
#19
Michael Lasta, Kata Miháltz, Illés Kovács, Pia Veronika Vécsei-Marlovits
PURPOSE: To compare the effect of spherical aberration on optical quality in eyes with two different aspherical intraocular lenses. METHODS: 120 eyes of 60 patients underwent phacoemulsification. In patients' eyes, an aberration-free IOL (Aspira-aA; Human Optics) or an aberration-correcting aspherical IOL (Tecnis ZCB00; Abott Medical Optics) was randomly implanted. After surgery, contrast sensitivity and wavefront measurements as well as tilt and decentration measurements were performed...
2017: Journal of Ophthalmology
https://www.readbyqxmd.com/read/28900148/evaluation-of-bleb-fluid-after-baerveldt-glaucoma-implantation-using-magnetic-resonance-imaging
#20
Kentaro Iwasaki, Masayuki Kanamoto, Yuji Takihara, Shogo Arimura, Yoshihiro Takamura, Hirohiko Kimura, Masaru Inatani
We evaluated bleb fluid images taken after Baerveldt glaucoma implantation. T2-weighted images of bleb fluid were scanned with 3 Tesla magnetic resonance imaging in 52 patients who had undergone tube-shunt surgery using the 350-mm(2) endplate Baerveldt glaucoma implant; three-dimensional images were constructed from these images. Bleb fluid images were classified into either a layer of bleb fluid on either side of the endplate (double bleb layer group; n = 24) or one layer outside the endplate (single bleb layer group; n = 28)...
September 12, 2017: Scientific Reports
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