Extraosseous Intradural Chondrosarcoma of the Cervical Spine: A Case Report with Brief Review of Literature by Elizabeth Presutto, Sejal Patel, Joseph Fullmer, Sajeev Ezhapilli

“…We report a rare case of an extraosseous chondrosarcoma with the cervical spinal canal in a 21-year-old male. The purpose of this case report is to discuss the imaging characteristics of this pathology proven diagnosis.…”
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Study of the Sediment Pollutant Evaluation and Resource Utilization in the North Canal by YAN Yulin

“…To understand the physical properties and pollution degree of the sediment in the North Canal,this paper collects the sediment in sections of North Canal with a columnar sampling device,and determines the physical properties,nutrient salt and heavy metal content of sediment.The results indicate that the average value of organic matter,TN and TP were 30.39 g/kg,0.161% and 0.174%,respectively,and were primary section, tertiary section and quaternary section according to the evaluation criterion.The average value of Cd,Cr,Ni,Zn,Cu,Pb and As were 0.39、86.55、29.09、199.82、52.27、33.86 and 8.26 mg/kg,respectively,which exceeded the background values for soil in Beijing.The evaluation results of geo-accumulation index show that the upper reach was partial moderate pollution,among which Cd and Zn were moderate pollution,and the middle and lower reaches were mild pollution.The average content of heavy metals was below the light pollution,so the pollution is not serious.Besides,the sediment can be reused to agricultural land and used as levee material,which exploit the way of resource utilization.…”
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VARIATION IN INTERNAL CAROTID ARTERY PROTRUSION AND DEHISCENCE IN A SUBSET OF KARACHI POPULATION by Mubina Lakhani, Iffat Raza, Maria Mohiuddin, Rosheena Nabeel Khan, Santosh Kumar Sidhwani, Nuzhat Hassan

“… Objective: To find out the frequency of protrusion of Internal Carotid artery in sphenoid sinus and dehiscence of carotid canal in a subset of Karachi population.  Study design: This was a Cross-sectional study conducted at Radiology department of Ziauddin university.  …”
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Unusual Maxillary First Molars with C-Shaped Morphology on the Same Patient: Variation in Root Canal Anatomy by Naji Kharouf, Youssef Haïkel, Davide Mancino

“…The two clinical cases reported in this paper describe the endodontic treatment of two maxillary first molars, on the same patient, with uncommon anatomy: the first case is about a maxillary first molar with only one C-shaped root and one oval canal with a large buccolingual diameter, a C1 type according to Fan’s classification; the second case, about the contralateral maxillary first molar, is probably the first case documented of a maxillary first molar with a C-shaped root canal and C-shaped root with complete fusion of the three roots, having a C3 configuration.…”
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Glide Path – An Ineluctable Route for Successful Endodontic Mechanics: A Literature Review by Mahima Bharat Mehta, Anupam Sharma, Aniket Jadhav, Aishwarya Handa, Abhijit Bajirao Jadhav, Ashwini A. Narayanan

“…By gradually enlarging the canal space, a glide path helps to reduce torsional stress on the instruments, which further reduces the risk of instrument fracture. …”
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On Modeling and Constrained Model Predictive Control of Open Irrigation Canals by Lihui Cen, Ziqiang Wu, Xiaofang Chen, Yanggui Zou, Shaohui Zhang

“…The Saint-Venant equations are widely used in hydraulics to model an open canal. As a set of hyperbolic partial differential equations, they are not solved explicitly and difficult to design optimal control algorithms. …”
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A Rare Case of Single-Rooted Mandibular Second Molar with Single Canal by Abdulmohsen Alfadley, Ahmad Alquraishi, Yaser Almazrou, Fahd Aljarbou

“…This case report describes the diagnosis and management of unusual root canal configuration of a mandibular second molar, with one canal in a single conical root, using the contemporary advancements in endodontics. …”
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Estimating the Evaporation from Irrigation Canals in Northwestern China Using the Double-Deck Surface Air Layer Model by Suhua Liu, Weizhen Wang, Makito Mori, Tetsuo Kobayashi

“…The DSAL model describes the surface air layer over a canal as a composite air layer with two sublayers, the lower sublayer and the upper sublayer. …”
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Inferior-Medial Dry Needling at the Thoracolumbar Junction: A Cadaveric Study by Christi L. Williams, Sue E. Curfman, Stacey R. Lindsley, Christian R. Falyar, Ryan C. McConnell

“…The needle was advanced under ultrasound guidance to determine if a 0.30 x 40 mm dry needle inserted lateral to the spinous process of T12 and directed inferior-medially could penetrate the LF and enter the spinal canal. # Results A 0.30 x 40 mm dry needle inserted 1.9 cm lateral to the spinous process of T12 was able to traverse the space between the vertebral laminae of T12 and L1, penetrate the LF, and enter the spinal canal with an inferior-medial needle angulation of 33-degrees medial and 18-degrees inferior…”
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Capability of biodentine and the mineral trioxide aggregate mta sealing in furcal perforation repair. Literature review by Silvana Benavides, Alejandra Guallo, Yecenia Carrillo

“…Accidents during these procedures commonly occur which affect the prognosis of root canal treatment. A furcal perforation is a complication that refers to the mechanical or pathological communication between the pulp chamber and supporting ligament, in the lower area of the pulp chamber and leads to the worst result of the treatment. …”
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The Effect of Patency Files on Apical Canal Anatomy Using SEM Imaging by Michael S. Cavender, Christopher Waters

“…The teeth were then scanned with an electron microscope to view the effect that the instruments had on the apical canal anatomy. A fourth tooth, a maxillary second molar, was shaped with an .06 taper rotary file and cone fitted. …”
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Safety Considerations When Dry Needling the Multifidi in the Thoracolumbar Region: A Cadaveric Study by Christi L. Williams, Christian R. Falyar, Ryan C. McConnell, Stacey Lindsley

“… # Purpose The purpose of this cadaveric ultrasound-guided dry needling exploration was to determine if a dry needle can penetrate the ligamentum flavum at the T12/L1 interspace and enter the spinal canal using a paramedian approach in a fresh-frozen, lightly fixed cadaver in the prone position…”
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Resistance to Cyclic Fatigue of Nickel-Titanium Files Immersed in Sodium Hypochlorite at Body Temperature by Hind F. Abuhulaibah, Ammar AbuMostafa

“…CF for all the files was tested within a well-lubricated stainless-steel artificial canal in a water bath at 37°C simulating body temperature. …”
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A Case of a Spinal Extradural Arachnoid Cyst by Yousuke Kojimahara, Shintaro Tsuge, Keiji Hasegawa, Katsunori Fukutake, Kazumasa Nakamura, Akihito Wada, Hiroshi Takahashi

“…During laminectomy for the 11th and 12th thoracic vertebrae, a cystic lesion of about 60×25 mm was noted on the dorsal side of the dural canal, with a communication pathway with the cyst present near the left 12th nerve root bifurcation. …”
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Effect of Sodium Hypochlorite Concentration on the Outcome of Full Pulpotomy in Mature Permanent Teeth with Irreversible Pulpitis – A Systematic Review by Aakriti Saini, Amandeep Kaur, Sidhartha Sharma, Vijay Kumar, Amrita Chawla, Ajay Logani

“…Three studies were single-arm prospective trials on pulpotomy, while one was a randomised control trial comparing pulpotomy and root canal treatment. A combined success rate of 93% from 117 teeth was reported from three studies using 2.5% NaOCl as a haemostatic agent. …”
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Service Quality (Servqual) Toward Rawa Bebek’s Rusunawa Residents in Dki Jakarta by Retnowati WD Tuti

“…Then UPRS, Occupants Rusunawa, and researchers preparing the proposed changes to policies regarding tariffs and elimination of fines rent-subsidized apartment, urban transport through Rusunawa, structuring River East Flood Canal as a tourist attraction water delivered to the Department of Housing and Area Settle- ment of Jakarta as the direct supervisor UPRS. …”
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The Effect of Remaining Coronal Tissue Height on the Fracture Strength of Over-Flared Endodontically Treated Central Incisors Restored Using a Multipost Approach by Mahsa Farshbaf-antik, Mahdi Abed-Kahnamouei, Parnian Alizadeh-Oskoee, Narmin Mohammadi, Siavash Savadi-Oskoee

“…Two prefabricated fiberglass posts were cemented into the root canal, adopting a multipost approach. The static load was applied at 0.5 mm/min and 135° concerning the tooth’s longitudinal axis until a fracture occurred. …”
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Perception of Dental Interns About Intracanal Fracture of Endodontic Instruments in the Central Region of Saudi Arabia: A Cross-Sectional Study by Abdullah Ahmad A. Aloyouni, Muhammad Atif Saleem Agwan, Saleh Suliman S. Almuzaini, Faris Saleh A. Alqazlan, Abdulaziz Abdulrhman A. Alshumaym, Khalid Abdullah G. Alfuryah

“…The questionnaire consisted of two components: the first component (Section I) gathered demographic details, and the second part (Section II) examined the causes of EFS during root canal treatment. A Pearson’s Chi-square test was applied to determine the association of perceptions of EFS during endodontic procedures between male and female interns. …”
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Prevalence and root canal morphology of taurodontism analyzed by cone-beam computed tomography in Northern China by Shaorong Li, Ziheng Min, Tianhao Wang, Benxiang Hou, Zheng Su, Chen Zhang

“…The highest incidence of taurodontism was detected in premolars, 9.86% in the maxillary first premolars, and in molars, with 3.94% in the maxillary first molars. Regarding canal curvature, a higher incidence of curved canal could be found in maxillary and mandibular molars of taurodontism (47.50-66.67%), alongside an elevated prevalence of C-shaped taurodontism in mandibular second molars (71.43%). …”
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Arriver à bon port : les canaux en contexte portuaire à l’époque romaine by Pauline Peter

“…The matter of artificial accesses to the port is a fundamental issue since the canal plays a role in its functioning as well as sometimes also in its decline. …”
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