keyword
MENU ▼
Read by QxMD icon Read
search

Root planing

keyword
https://www.readbyqxmd.com/read/28079678/sound-localization-in-patients-with-congential-unilateral-conductive-hearing-loss-with-a-transcutaneous-bone-conduction-implant
#1
Erich Vyskocil, Rudolfs Liepins, Alexandra Kaider, Michaela Blineder, Sasan Hamzavi
OBJECTIVE: There is no consensus regarding the benefit of implantable hearing aids in congenital unilateral conductive hearing loss (UCHL). This study aimed to measure sound source localization performance in patients with congenital UCHL and contralateral normal hearing who received a new bone conduction implant. STUDY DESIGN: Evaluation of within-subject performance differences for sound source localization in a horizontal plane. SETTING: Tertiary referral center...
January 10, 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/28061791/incidence-of-pulp-sensibility-loss-of-anterior-teeth-after-paramedian-insertion-of-orthodontic-mini-implants-in-the-anterior-maxilla
#2
Jan Hourfar, Dirk Bister, Jörg A Lisson, Björn Ludwig
BACKGROUND: The aim of this retrospective investigation was to evaluate the incidence of loss to pulp sensibility testing (PST) of maxillary front teeth after paramedian (3 to 5 mm away from the suture) orthodontic mini-implant (OMI) insertion in the anterior palate. METHODS: A total of 284 patients (102 males, 182 females; mean age was 14.4 years (±8.8) years at time of OMI-Insertion) with a total of 568 OMIs (1.7 mm diameter, length 8 mm) were retrospectively investigated...
January 6, 2017: Head & Face Medicine
https://www.readbyqxmd.com/read/28050495/computed-tomography-evaluation-of-canal-transportation-and-volumetric-changes-in-root-canal-dentin-of-curved-canals-using-mtwo-protaper-and-protaper-next-rotary-system-an-in-vitro-study
#3
Mayuri Biccodu Shivashankar, Nandini Thippannanavar Niranjan, Arun Jayasheel, Mallikarjun Goud Kenchanagoudra
INTRODUCTION: Complete cleaning and shaping of root canal system is of paramount importance to achieve a successful root canal treatment. There are various rotary Ni-Ti systems available in the market to achieve mechanical goal of root canal preparation. But aggressive preparation of root canal with such systems would result in canal transportation and excess root dentin removal that would be one of the major reasons to decide the prognosis of root canal treated tooth. AIM: The present study was conducted to compare the root canal preparation in terms of canal transportation and volumetric changes in the root canal dentin among three Ni-Ti file systems, namely Mtwo, ProTaper (PT) and ProTaper NEXT (PTN) file system, using Computed Tomography (CT)...
November 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28050316/effectiveness-of-alendronate-as-an-adjunct-to-scaling-and-root-planing-in-the-treatment-of-periodontitis-a-meta-analysis-of-randomized-controlled-clinical-trials
#4
Jin Chen, Qian Chen, Bo Hu, Yunji Wang, Jinlin Song
PURPOSE: Alendronate has been proposed as a local and systemic drug treatment used as an adjunct to scaling and root planing (SRP) for the treatment of periodontitis. However, its effectiveness has yet to be conclusively established. The purpose of the present meta-analysis was to assess the effectiveness of SRP with alendronate on periodontitis compared to SRP alone. METHODS: Five electronic databases were used by 2 independent reviewers to identify relevant articles from the earliest records up to September 2016...
December 2016: Journal of Periodontal & Implant Science
https://www.readbyqxmd.com/read/28048747/su-f-t-230-a-simple-method-to-assess-accuracy-of-dynamic-wave-arc-irradiation-using-an-electronic-portal-imaging-device-and-log-files
#5
H Hirashima, Y Miyabe, K Yokota, M Nakamura, N Mukumoto, T Mizowaki, M Hiraoka
PURPOSE: The Dynamic Wave Arc (DWA) technique, where the multi-leaf collimator (MLC) and gantry/ring move simultaneously in a predefined non-coplanar trajectory, has been developed on the Vero4DRT. The aim of this study is to develop a simple method for quality assurance of DWA delivery using an electronic portal imaging device (EPID) measurements and log files analysis. METHODS: The Vero4DRT has an EPID on the beam axis, the resolution of which is 0.18 mm/pixel at the isocenter plane...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28048691/tu-ab-brc-11-moving-a-gpu-opencl-based-monte-carlo-mc-dose-engine-towards-routine-clinical-use-automatic-beam-commissioning-and-efficient-source-sampling
#6
Z Tian, Y Li, M Folkerts, S Jiang, X Jia
PURPOSE: We have previously developed a GPU-OpenCL-based MC dose engine named goMC with built-in analytical linac beam model. To move goMC towards routine clinical use, we have developed an automatic beam-commissioning method, and an efficient source sampling strategy to facilitate dose calculations for real treatment plans. METHODS: Our commissioning method is to automatically adjust the relative weights among the sub-sources, through an optimization process minimizing the discrepancies between calculated dose and measurements...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28048320/su-g-iep2-08-investigation-on-signal-detectability-in-volumetric-cone-beam-ct-images-with-anatomical-background
#7
M Han, J Baek
PURPOSE: To investigate the slice direction dependent detectability in cone beam CT images with anatomical background. METHODS: We generated 3D anatomical background images using breast anatomy model. To generate 3D breast anatomy, we filtered 3D Gaussian noise with a square root of 1/f(3) , and then assigned the attenuation coefficient of glandular (0.8cm(-1) ) and adipose (0.46 cm(-1) ) tissues based on voxel values. Projections were acquired by forward projection, and quantum noise was added to the projection data...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28048197/su-f-j-175-evaluation-of-metal-artifact-reduction-algorithms-in-computed-tomography-and-their-application-to-radiation-therapy-treatment-planning
#8
H Norris, D Rangaraj, S Kim
PURPOSE: High-Z (metal) implants in CT scans cause significant streak-like artifacts in the reconstructed dataset. This results in both inaccurate CT Hounsfield units for the tissue as well as obscuration of the target and organs at risk (OARs) for radiation therapy planning. Herein we analyze two metal artifact reduction algorithms: GE's Smart MAR and a Metal Deletion Technique (MDT) for geometric and Hounsfield Unit (HU) accuracy. METHODS: A CT-to-electron density phantom, with multiple inserts of various densities and a custom Cerrobend insert (Zeff=76...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047927/tu-h-campus-iep1-01-bias-and-computational-efficiency-of-variance-reduction-methods-for-the-monte-carlo-simulation-of-imaging-detectors
#9
D Sharma, J Sempau, A Badano
PURPOSE: Variance reduction techniques (VRTs) are employed in Monte Carlo simulations to obtain estimates with reduced statistical uncertainty for a given simulation time. In this work, we study the bias and efficiency of a VRT for estimating the response of imaging detectors. METHODS: We implemented Directed Sampling (DS), preferentially directing a fraction of emitted optical photons directly towards the detector by altering the isotropic model. The weight of each optical photon is appropriately modified to maintain simulation estimates unbiased...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28042268/comparing-the-effects-of-manual-and-ultrasonic-instrumentation-on-root-surface-mechanical-properties
#10
Muhammad Sohail Zafar
OBJECTIVE: The aim of the current study is to analyze the surface profiles of healthy and periodontal-treated roots. In addition, manual and ultrasonic instrumentation methods have been compared in terms of surface mechanical properties of root surfaces including surface roughness, hardness, and elastic modulus. MATERIALS AND METHODS: This study was conducted using extracted teeth that were randomly divided into two study groups (1 and 2). Root planing was performed using either Gracey curettes (Group 1) or ultrasonic scaler (Group 2)...
October 2016: European Journal of Dentistry
https://www.readbyqxmd.com/read/28033112/three-dimensional-ultrasound-strain-imaging-of-skeletal-muscles
#11
K Gijsbertse, A M J Sprengers, M M Nillesen, H H G Hansen, R G P Lopata, N Verdonschot, C L de Korte
In this study, a multi-dimensional strain estimation method is presented to assess local relative deformation in three orthogonal directions in 3D space of skeletal muscles during voluntary contractions. A rigid translation and compressive deformation of a block phantom, that mimics muscle contraction, is used as experimental validation of the 3D technique and to compare its performance with respect to a 2D based technique. Axial, lateral and (in case of 3D) elevational displacements are estimated using a cross-correlation based displacement estimation algorithm...
December 29, 2016: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28025436/the-clinical-and-systemic-effects-of-periodontal-treatment-in-diabetic-and-non-diabetic-obese-patients
#12
Zekeriya Taşdemir, Funda Özsarı Taşdemir, İsmail Koçyiğit, Cevat Yazıcı, Cem A Gürgan
The purpose of the present study was to evaluate the response to periodontal management in obese individuals with poorly controlled diabetes mellitus (DM) and obese individuals without DM. Changes in clinical and biochemical parameters were also investigated. Seventeen obese patients with poorly controlled DM and 14 obese non-DM patients with generalized chronic periodontitis were enrolled. The anthropometric measurements, periodontal parameters, and serum levels of lipid (triglyceride, high-density lipoprotein cholesterol, total cholesterol, low-density lipoprotein cholesterol) and glucose (fasting plasma glucose [FPG], insulin, insulin resistance [IR], hemoglobin [Hb]A1c) metabolism, pro-inflammatory mediators (high-sensitivity C-reactive protein, tumor necrosis factor-α [TNF-α] and Pentraxim-3), and interleukin-6 were measured before and at 3 months, and 6 months after full-mouth scaling and root planing (FM-SRP) together with full-mouth disinfection (FMD)...
2016: Journal of Oral Science
https://www.readbyqxmd.com/read/27998687/effects-of-applied-stress-ratio-on-the-fatigue-behavior-of-additively-manufactured-porous-biomaterials-under-compressive-loading
#13
Joep de Krijger, Calvin Rans, Brecht Van Hooreweder, Karel Lietaert, Behdad Pouran, Amir A Zadpoor
Additively manufactured (AM) porous metallic biomaterials are considered promising candidates for bone substitution. In particular, AM porous titanium can be designed to exhibit mechanical properties similar to bone. There is some experimental data available in the literature regarding the fatigue behavior of AM porous titanium, but the effect of stress ratio on the fatigue behavior of those materials has not been studied before. In this paper, we study the effect of applied stress ratio on the compression-compression fatigue behavior of selective laser melted porous titanium (Ti-6Al-4V) based on the diamond unit cell...
December 7, 2016: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/27995452/an-optimal-approach-for-laparoscopic-d3-lymphadenectomy-plus-complete-mesocolic-excision-d3-cme-for-right-sided-colon-cancer
#14
Daxing Xie, Chaoran Yu, Chun Gao, Hasan Osaiweran, Junbo Hu, Jianping Gong
BACKGROUND: It is common knowledge that high ligation of blood vessels at the D3 level and complete mesocolic excision (CME) are two critical points of right hemicolectomy for right colon cancer (RCC). (1-5) To date, a safe strategy for completing these two procedures under laparoscopic surgery has not been extensively described. The authors provide a video to demonstrate laparoscopic right hemicolectomy (D3 + CME) with an optimal mesentery-defined approach. By identifying three "tri-junctions," this approach facilitates dissection of the entire mesocolon along the embryologic planes as far centrally as possible and enables the high tie of feeding vessels at bifurcation...
December 19, 2016: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/27980332/antibiotics-in-aggressive-periodontitis-is-there-a-clinical-benefit
#15
Anjana Rajendra, Silvia Spivakovsky
Data sourcesMedline, Embase and CENTRAL databases were searched up to December 2014. Unpublished data were sought by searching a database listing unpublished studies OpenGray [http://www.opengrey.eu/], formerly OpenSIGLE.Study selectionRandomised clinical trials assessing treatment of patients with AgP comparing scaling and root planing (SRP) alone with SRP plus a single antibiotic or a combination of drugs with a minimum of three months follow-up were considered. Studies specifically designed to evaluate smokers or subjects with diabetes mellitus and HIV/AIDS were not included...
December 2016: Evidence-based Dentistry
https://www.readbyqxmd.com/read/27980329/preventative-therapies-and-periodontal-interventions-for-down-syndrome-patients
#16
David Jones, Joanna Morrison
Data sourcesMedline, Embase, Cochrane CENTRAL and OpenGREY databases without language restriction until March 2016 plus manual searching of four specific journals and consideration of reference lists.Study selectionStudies evaluating different methods of periodontal treatment in Down syndrome patients measuring at least two periodontal parameters at different periods of assessment. Titles, abstracts and full texts were considered by two independent reviewers and a third where discussion did not reach consensus...
December 2016: Evidence-based Dentistry
https://www.readbyqxmd.com/read/27978912/-a-clinical-evaluation-of-periodontal-treatment-effect-using-periodontal-endoscope-for-patients-with-periodontitis-a-split-mouth-controlled-study
#17
Y T Liao, Y Liu, Y Jiang, X Y Ouyang, L He, N An
Objective: To compare the clinical effects of periodontal treatment using periodontal endoscope with that of conventional treatment method for patients with periodontitis. Methods: Eleven periodontal patients with moderate to advanced periodontal destruction were recruited and treated with scaling and root planing in a split-mouth design randomly with (test group) or without (control group) periodontal endoscope. Changes of such clinical parameters as plaque index (PLI), bleeding index (BI), probing depth (PD) and attachment loss (AL) before and after treatments as well as the difference between test and control groups were examined and compared...
December 9, 2016: Zhonghua Kou Qiang Yi Xue za Zhi, Zhonghua Kouqiang Yixue Zazhi, Chinese Journal of Stomatology
https://www.readbyqxmd.com/read/27966504/evaluation-of-efficacy-of-photodynamic-therapy-as-an-adjunct-to-nonsurgical-periodontal-therapy-in-treatment-of-chronic-periodontitis-patients-a-clinico-microbiological-study
#18
K Ravi Raj, Svvs Musalaiah, M Nagasri, P Aravind Kumar, P Indeevar Reddy, M Greeshma
BACKGROUND AND OBJECTIVES: Photodynamic therapy (PDT) is a local noninvasive treatment modality without side effects caused by antibiotics. The aim of this study was to evaluate the efficacy of adjunctive use of PDT with scaling and root planing as compared with SRP alone in the treatment of chronic periodontitis. SUBJECTS AND METHODS: Twenty participants with chronic periodontitis having probing pocket depths (PDs) of ≥5 mm were selected for the study. Patients were randomly divided into control group and test group with ten patients in each group...
September 2016: Indian Journal of Dental Research: Official Publication of Indian Society for Dental Research
https://www.readbyqxmd.com/read/27960216/dilatation-of-vascular-prostheses-in-ascending-aortic-position-a-long-term-follow-up-computed-tomography-study-with-comparison-of-different-measurement-methods
#19
Marwan Hamiko, Matthias Endlich, Christian Krämer, Chris Probst, Armin Welz, Kai Wilhelm, Wolfgang Schiller
Background The aim of this study was to evaluate long-term dilatation of Hemashield Gold and Hemashield Platinum vascular prostheses in ascending aortic position using different measurement methods to obtain precise results. Methods Between 1999 and 2007, 73 patients with Stanford type A dissection received ascending aortic replacement with Hemashield Gold and Hemashield Platinum prostheses. Measurements were performed using multiplanar reconstruction mode of electrocardiogram (ECG)-gated, multislice spiral computed tomography (MSCT) in strictly orthogonal cross-sectional planes...
December 13, 2016: Thoracic and Cardiovascular Surgeon
https://www.readbyqxmd.com/read/27929181/smartphone-based-hand-held-quantitative-phase-microscope-using-the-transport-of-intensity-equation-method
#20
Xin Meng, Huachuan Huang, Keding Yan, Xiaolin Tian, Wei Yu, Haoyang Cui, Yan Kong, Liang Xue, Cheng Liu, Shouyu Wang
In order to realize high contrast imaging with portable devices for potential mobile healthcare, we demonstrate a hand-held smartphone based quantitative phase microscope using the transport of intensity equation method. With a cost-effective illumination source and compact microscope system, multi-focal images of samples can be captured by the smartphone's camera via manual focusing. Phase retrieval is performed using a self-developed Android application, which calculates sample phases from multi-plane intensities via solving the Poisson equation...
December 20, 2016: Lab on a Chip
keyword
keyword
95080
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"