scholarly journals Patient Specific Classification of Dental Root Canal and Crown Shape

2020 ◽  
pp. 145-153
Author(s):  
Maxime Dumont ◽  
Juan Carlos Prieto ◽  
Serge Brosset ◽  
Lucia Cevidanes ◽  
Jonas Bianchi ◽  
...  
Keyword(s):  
Root Canal ◽  
Patient Specific ◽  
Crown Shape

scholarly journals Contextualizing the Impact of Snakebite Envenoming on Patients: A Qualitative Content Analysis of Patient-Specific Functional Scale Activities Using the International Classification of Functioning, Disability and Health

2021 ◽  
Vol 18 (18) ◽  
pp. 9608
Author(s):  
Anna Tupetz ◽  
Ashley J. Phillips ◽  
Patrick E. Kelly ◽  
Loren K. Barcenas ◽  
Eric J. Lavonas ◽  
...  
Keyword(s):  
Content Analysis ◽  
Treatment Approach ◽  
Qualitative Content Analysis ◽  
The United States ◽  
International Classification ◽  
Patient Specific ◽  
Functional Scale ◽  
Icf Model ◽  
The Impact

To categorize the Patient-specific Functional Scale (PSFS) activities in snakebite envenoming (SBE) using the International Classification of Function (ICF) model in order to describe the impact of SBE on patients’ activities and daily lives and to develop a theoretical SBE model of functioning, we performed a post-hoc analysis of two multi-center, prospective studies, conducted at 14 clinical sites in the United States with consecutive SBE patients presenting to the emergency department. Qualitative content analysis and natural language processing were used to categorize activities reported in the PSFS using the ICF model. Our sample included 93 patients. The mean age was 43.0 (SD 17.9) years, most had lower extremity injuries (59%). A total of 99 unique activities representing eight domains came within the Activity and Participation component of the ICF model, with the majority in the Mobility and General Tasks and Demands domains. The main concerns of SBE patients are the ability to perform daily activities and to engage within their social environment. Applying the ICF model to SBE can facilitate the creation of a patient-centered treatment approach, moving beyond body-structural impairments towards a function-based treatment approach and facilitate early integration of rehabilitation services.

Acute Liver Failure

2017 ◽  
Author(s):  
Cynthia Wang ◽  
Michelle Y. Braunfeld
Keyword(s):  
Supportive Care ◽  
Liver Failure ◽  
Acute Liver Failure ◽  
Intraoperative Monitoring ◽  
Multiorgan Failure ◽  
Anesthetic Management ◽  
Specific Treatment ◽  
Patient Specific ◽  
Drug Induced

Acute liver failure produces widespread physiologic derangements including encephalopathy, coagulopathy, peripheral vasodilation, a systemic inflammatory response, and multiorgan failure. Morbidity is significant, and mortality is 50%. The classification of liver failure and the various etiologies, including viral hepatitis, drug-induced, toxins, and autoimmunity are reviewed here. The multisystem effects of acute liver failure influence all aspects of perioperative care and adequate supportive care during this time is crucial to providing the best possible outcome for the patient. Specific treatment objectives and recommendations are discussed, and the anesthetic management with regard to drug choices, hemodynamic goals, and intraoperative monitoring is reviewed.

scholarly journals Analysis of Cause of Endodontic Failure of C-Shaped Root Canals

Scanning ◽  
2018 ◽  
Vol 2018 ◽  
pp. 1-7 ◽  
Author(s):  
Yemi Kim ◽  
Donghee Lee ◽  
Da-Vin Kim ◽  
Sin-Young Kim
Keyword(s):  
Root Canal ◽  
Root Surface ◽  
Cone Beam ◽  
Common Cause ◽  
Root Canals ◽  
Cause Of Failure ◽  
End Resection ◽  
Scanning Electron ◽  
Periapical Radiography

The purpose of this study was to analyze various characteristics and classification of C-shaped root canals and evaluate the causes of endodontic failure of C-shaped root canals by examining the resected root surface with an endodontic microscope and a scanning electron microscope (SEM). Forty-two teeth with C-shaped root canals were included in this study and had undergone intentional replantation surgery. Before surgery, periapical radiography and cone-beam computed tomography were taken. The root canal configuration was analyzed and classified according to Melton’s classification at coronal and apical level. After injection of 1 : 100,000 epinephrine with 2% lidocaine, the tooth was carefully extracted. After the root-end resection, the resected root surface was examined using an operating microscope and SEM. Mandibular second molars were most frequently involved teeth (90.4%). The most frequently observed root canal configurations were C1 at the coronal level (45.2%) and C3 at the apical 3 mm level (45.2%). The most common cause of failure for a C-shaped root canal treatment was a leaky canal (45.2%), followed by an isthmus (23.8%), missing canal, overfilling, and iatrogenic problems. In conclusion, C-shaped root canals were most frequently found in mandibular second molars. The most common cause of failure was a leaky canal and isthmus.

scholarly journals Patient-Specific Classification of ICU Sedation Levels From Heart Rate Variability*

2017 ◽  
Vol 45 (7) ◽  
pp. e683-e690 ◽  
Author(s):  
Sunil B. Nagaraj ◽  
Siddharth Biswal ◽  
Emily J. Boyle ◽  
David W. Zhou ◽  
Lauren M. McClain ◽  
...  
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Patient Specific ◽  
Icu Sedation

scholarly journals Influence of the rotary and/or oscillatory reciprocating systems in the morphological changes of narrow and curved molar root canals anatomy

2012 ◽  
Vol 41 (5) ◽  
pp. 353-359
Author(s):  
Joedy Maria Costa Santa Rosa ◽  
Fábio Roberto Dametto ◽  
Cicero Romão Gadê-Neto ◽  
Rejane Andrade de Carvalho ◽  
Diana Santana de Albuquerque ◽  
...  
Keyword(s):  
Root Canal ◽  
Morphological Changes ◽  
Digital Camera ◽  
Operating Microscope ◽  
X Ray ◽  
Root Canals ◽  
Before And After ◽  
Reciprocating Systems

OBJECTIVE: This study evaluated four mechanized Endodontic systems, ProTaper Universal, K3 Endo, Twisted file (rotary) and the oscillatory reciprocating system Endo - Eze TiLOS, in order to verify and measure alterations in original anatomy with deviations at cervical, medium and apical root canal thirds. MATERIAL AND METHOD: It was used MB root canals of 60 extract human lower molars, to produce a line of severe angles, according to the classification of Schneider. Samples were included in Ester vinyl resin, mounted in the Teflon Furnace, transversally sectioned at the cervical, middle and apical thirds, which were subsequently photographed using a digital camera Cyber Shot DSC-TX10,attached to an operating microscope 3101XY DFVasconcelos with 40× magnification in order to measure the anatomical transversal area of the root canal, using the software AutoCAD 2008, comparing pre and post-instrumentation. All samples assembled in the Furnace also were submitted to x-ray in a standardized way to enable the comparison of the angle of Schneider pre-and post-instrumentation. Once collected the data, they were compared statistically using the program BioEstat 5.0. RESULT: The analysis of the results showed that in the cervical third, rotary systems were more effective than Endo-Eze TiLOS System with statistically significant differences (p ≤ 0,05). Apical and middle third changes in anatomy were similar, but apically, the ProTaper system caused more deviations when comparing the angle of Schneider,and areas before and after instrumentation(p ≤ 0,05). CONCLUSION: It was concluded that all the systems caused alteration in the original anatomy of the root canal when parameters as angle of Schneider and areas before and after preparation were used.

scholarly journals A Practical Sensor-Based Methodology for the Quantitative Assessment and Classification of Chronic Non Specific Low Back Patients (NSLBP) in Clinical Settings

Sensors ◽  
2020 ◽  
Vol 20 (10) ◽  
pp. 2902 ◽  
Author(s):  
Mehrdad Davoudi ◽  
Seyyed Mohammadreza Shokouhyan ◽  
Mohsen Abedi ◽  
Narges Meftahi ◽  
Atefeh Rahimi ◽  
...  
Keyword(s):  
High Risk ◽  
Sagittal Plane ◽  
Inertial Sensor ◽  
Patient Specific ◽  
Clinical Settings ◽  
Low Back ◽  
Linear Discriminant ◽  
Significant Difference ◽  
The Right

The successful clinical application of patient-specific personalized medicine for the management of low back patients remains elusive. This study aimed to classify chronic nonspecific low back pain (NSLBP) patients using our previously developed and validated wearable inertial sensor (SHARIF-HMIS) for the assessment of trunk kinematic parameters. One hundred NSLBP patients consented to perform repetitive flexural movements in five different planes of motion (PLM): 0° in the sagittal plane, as well as 15° and 30° lateral rotation to the right and left, respectively. They were divided into three subgroups based on the STarT Back Screening Tool. The sensor was placed on the trunk of each patient. An ANOVA mixed model was conducted on the maximum and average angular velocity, linear acceleration and maximum jerk, respectively. The effect of the three-way interaction of Subgroup by direction by PLM on the mean trunk acceleration was significant. Subgrouping by STarT had no main effect on the kinematic indices in the sagittal plane, although significant effects were observed in the asymmetric directions. A significant difference was also identified during pre-rotation in the transverse plane, where the velocity and acceleration decreased while the jerk increased with increasing asymmetry. The acceleration during trunk flexion was significantly higher than that during extension, in contrast to the velocity, which was higher in extension. A Linear Discriminant Analysis, utilized for classification purposes, demonstrated that 51% of the total performance classifying the three STarT subgroups (65% for high risk) occurred at a position of 15° of rotation to the right during extension. Greater discrimination (67%) was obtained in the classification of the high risk vs. low-medium risk. This study provided a smart “sensor-based” practical methodology for quantitatively assessing and classifying NSLBP patients in clinical settings. The outcomes may also be utilized by leveraging cost-effective inertial sensors, already available in today’s smartphones, as objective tools for various health applications towards personalized precision medicine.

scholarly journals Evaluation of Cross-Sectional Root Canal Shape and Presentation of New Classification of Its Changes Using Cone-Beam Computed Tomography Scanning

2020 ◽  
Vol 10 (13) ◽  
pp. 4495 ◽  
Author(s):  
Svetlana Razumova ◽  
Anzhela Brago ◽  
Ammar Howijieh ◽  
Haydar Barakat ◽  
Yuliya Kozlova ◽  
...  
Keyword(s):  
Root Canal ◽  
Age Groups ◽  
Cone Beam ◽  
New Classification ◽  
Cross Sectional ◽  
Computed Tomography Scanning ◽  
The Cross ◽  
Shape Changes ◽  
Tomography Scanning

The root canal system is considering the most important factor in endodontic treatment, due to the complexity of its anatomy and morphology. The aim of this study was to evaluate the cross-sectional root canal shape in three thirds (coronal, middle, apical) in different age groups using cone-beam computed tomography scanning (CBCT) and to present a new classification for root canal shape changes. This cross-sectional study included 300 CBCT scans for patient aged 20–70, and these scans were evaluated to study the morphology of the cross-sectional root canal shape in coronal, middle, and apical thirds among three age groups, namely the young (20–44), middle (45–59), and elderly (60–70). The root canal shape was classified as round, oval, long oval, and ribbon (with or without isthmus). The cross-sectional root canal shape was identified in two groups: canals with an unchanging (constant) shape and canals with changing shape. In turn, in canals with changing shape, the change could be identified in the region of the middle or apical thirds of the canal. The results showed that root canal shape changes in two cases: (1) the presence of one or more canals in the root (with or without isthmus between them), and (2) with age, as it was observed that the cross-sectional shape of the root canal becomes round in the apical third with age. A new classification of the changes of root canal shape in three thirds (coronal, middle, apical) was presented in this study.

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