Results 251 to 260 of about 1,667,632 (288)

Instrument response effects on the retrieval of oceanic lidar

Applied Optics, 2020
Seawater properties can be retrieved from oceanic lidar returns. However, the actual returns include the ideal returns convolved by the instrument response, which inevitably introduces retrieval error. In this paper, instrument response effects on the retrieval of oceanic lidar are analyzed from different aspects.
Xue, Shen, Zhipeng, Liu, Yudi, Zhou, Qun, Liu, Peituo, Xu, Zhihua, Mao, Chong, Liu, Longhua, Tang, Na, Ying, Miao, Hu, Dong, Liu   +10 more
openaire   +2 more sources

An Innovative Broken Pedicle Screw Retrieval Instrument

Journal of Spinal Disorders & Techniques, 2007
To introduce a new broken pedicle screw fragment retrieval instrument, and evaluate its clinical viability and effectiveness.Following basic retrieval contrivance of broken pedicle screws described in literature, a new retrieval instrument was designed and developed; introducing its mechanism, technical components, and use.
Xisheng, Weng, Guixing, Qiu, Junwei, Li, Shugang, Li, Chia-I, Lee, Bin, Yu, Lianhua, Li   +6 more
openaire   +2 more sources

METHODS TO RETRIEVE SEPARATED INSTRUMENTS IN ENDODONTICS

2022
During the root canal procedure, an instrument can fracture occasionally which might block access to the apical terminus (1). The instrument may be a hand or a rotary file, Peaso reamer, Gates Glidden drill, Lentulo spiral, or some non-endodontic instruments (1,2).
Ramya Vengidesh, Anupama Ramachandran, Sadasiva Kadandale   +2 more
openaire   +1 more source

Use of sonic instruments for implant biopsy retrieval

Clinical Oral Implants Research, 2014
AbstractObjectiveTo evaluate in vitro the quality of dental implant biopsies collected using trephines or a sonic instrument.MethodSixty implants, 4 mm long and 2.4 mm in diameter, were installed in twelve fresh bovine ribs. Biopsies were collected after using three different methods for retrieval, 20 biopsies representing each group: (A) A trephine ...
Ferri, Mauro, Lang, Niklaus P, Angarita Alfonso, Edwin Elías, Bedoya Quintero, Iván Darío, Burgos, Enrique Mejía, Botticelli, Daniele   +5 more
openaire   +2 more sources

Retrieval of instrumental verbs in aphasia: An explorative study

Clinical Linguistics & Phonetics, 1991
Retrieval of instrumental verbs in two conditions in two Broca and two anomic patients was studied. The instrumental verbs were divided into two classes, viz. instrumental verbs that are related in name with the instrument (e.g. to saw-a saw) and those that are not related in name (e.g. to write-a pen). The actions had to be named (a) in isolation and (
openaire   +2 more sources

An Instrument for Retrieval of Intravascular Foreign Bodies

Radiology, 1968
Increasing use of indwelling venous catheters and percutaneous venous catheterization has led to a rather uncommon complication resulting from the loss of a catheter or guide wire into the venous system. The displaced foreign body may become lodged in any portion of the venous system, but most frequently is located in the right atrium or right ...
openaire   +2 more sources

A new approach for the retrieval of broken instruments

Journal of Endodontics, 1999
The purpose of this article is to present a modified ultrasonic spreader and a new technique that are used for the retrieval of solid obstructions that can not be bypassed by conventional methods. The technique advocated and the instruments proposed are described. A clinical case is discussed to show the possibilities and limitations of both instrument
openaire   +2 more sources

Instrument Retrieval in Endodontics: A Literature Review

Asian Journal of Dental and Health Sciences
Instrument separation poses a notable challenge in endodontic therapy, with occurrence rates between 2% and 6%. While a separated instrument does not automatically equate to treatment failure, it can hinder complete debridement and obturation, which might result in bacterial survival and inflammatory responses.
B S Keshava Prasad
exaly   +2 more sources

The Cost of Instrument Retrieval on the Root Integrity

International Endodontic Journal
ABSTRACT Aim To evaluate dentine loss in mesial canals of mandibular molars following instrument fragment retrieval using two techniques. Methodology Ten mesial roots of mandibular molars with ...
Marco A. Versiani, Hugo Sousa Dias, Emmanuel J. N. L. Silva, Felipe G. Belladonna, Jorge N. R. Martins, Gustavo De‐Deus   +5 more
openaire   +2 more sources

Latching hook for instrument retrieval

Ocean Engineering, 1974
Abstract A light-weight, latching hook on a tapered-strength, light-weight pole retrieves delicate instruments from the sea. The pole is capable of extending the operator's reach more than 6 m in securing a lifting line to instruments more massive than 500 kg.
openaire   +1 more source