Aim: To compare dentinal damage caused by hand and rotary nickel-titanium instruments using ProTaper, K3 Endo, and Easy RaCe systems after root canal preparation.
Materials And Methods: One hundred and fifty freshly extracted mandibular premolars were randomly divided into five experimental groups of 30 teeth each and biomechanical preparation was done: Group 1 with unprepared teeth; Group 2 were prepared with hand files; Group 3 with ProTaper rotary instruments; Group 4 with K3 rotary; Group 5 with Easy RaCe rotary instruments. Then, roots were cut horizontally at 3, 6, and 9 mm from apex and were viewed under stereomicroscope. The presence of dentinal defects was noted.
Statistical Analysis: Groups were analyzed with the Chi-square test.
Results: Significant difference was seen between groups. No defects were found in unprepared roots and those prepared with hand files. ProTaper, K3 rotary, and Easy RaCe preparations resulted in dentinal defects in 23.3%, 10%, and 16.7% of teeth, respectively. More defects were shown in coronal and middle sections, and no defect was seen in apical third.
Conclusion: The present study revealed that use of rotary instruments could result in an increased chance for dentinal defects as compared to hand instrumentation.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4502126 | PMC |
| http://dx.doi.org/10.4103/0972-0707.159730 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Frequency locked whispering evanescent resonator (FLOWER) for biochemical sensing applications.
Nat Protoc
January 2025
Wyant College of Optical Sciences, The University of Arizona, Tucson, AZ, USA.
Sensitive, rapid and label-free biochemical sensors are needed for many applications. In this protocol, we describe biochemical detection using FLOWER (frequency locked optical whispering evanescent resonator)-a technique that we have used to detect single protein molecules in aqueous solution as well as exosomes, ribosomes and low part-per-trillion concentrations of volatile organic compounds. Whispering gallery mode microtoroid resonators confine light for extended time periods (hundreds of nanoseconds).
View Article and Find Full Text PDFEffect of mechanical instrumentation on titanium implant surface properties.
Dent Mater
January 2025
Department of Materials, School of Natural Sciences, University of Manchester, Manchester M13 9PL, UK; Photon Science Institute, University of Manchester, Manchester M13 9PL, UK. Electronic address:
Objective: To assess the impact of mechanical decontamination using rotary brushes on the surface topography, elemental composition, roughness, and wettability of titanium implant surfaces.
Methods: Four commercially available rotary brushes were used: Labrida BioClean Brush® (LB), i-Brush1 (IB), NiTiBrush Nano (NiTiB), and Peri-implantitis Brush (PIB). Seventy-five titanium discs with sandblasted, large-grit, acid-etched (SLA) surfaces were randomly assigned to five groups (n = 15): LB, IB, NiTiB, PIB, and a control group.
Comparative Evaluation of Apical Debris Extrusion in Primary Molars Using Three Different Pediatric Rotary Systems: An Study.
Int J Clin Pediatr Dent
November 2024
Department of Pedodontics and Preventive Dentistry, Vivekanandha Dental College for Women, Namakkal, Tamil Nadu, India.
Aims And Background: Failure of the endodontic treatment might be due to various reasons like zipping, apical blockade, ledging, debris extrusion, etc. Apical debris extrusion in primary teeth is of major concern as it does not have a proper well-developed apex, that is, mature apex. This study aims to compare and evaluate the apical debris extrusion in primary molars using three different pediatric rotary file system.
View Article and Find Full Text PDFPhase transformation and metallurgical characterization of heat-treated nickel-titanium rotary instruments using differential scanning calorimetry, X-ray diffraction, and energy dispersive spectrometry.
J Conserv Dent Endod
November 2024
Department of Metallurgical and Materials Engineering, National Institute of Technology, Srinagar, Jammu and Kashmir, India.
Objective: The present study aimed to evaluate the phase transformation behavior and elemental analysis of thermomechanical-treated nickel-titanium (NiTi) rotary instruments, TruNatomy (Dentsply Sirona), HyFlex CM (coltene, Whaledent), and Neoendo Flex (Orikam healthcare India), using differential scanning calorimetry (DSC), X-ray diffraction (XRD), and energy dispersive X-ray spectrometry.
Materials And Methods: A total of 18 NiTi rotary instruments, TruNatomy, Hyflex CM, Neoendo Flex, taper. 04, size 25 (except TruNatomy, size 26) were selected and were divided into three groups ( = 6).
The Comparative Efficacy of Burs Versus Piezoelectric Techniques in Third Molar Surgery: A Systematic Review Following the PRISMA Guidelines.
Medicina (Kaunas)
December 2024
Department of Life, Health and Environmental Sciences, School of Dentistry, University of L'Aquila, 67100 L'Aquila, Italy.
: Third molar (wisdom tooth) extraction is one of the most common surgical procedures in oral and maxillofacial surgery. Traditional rotary instruments and burs have long been the standard tools for this procedure. However, recent advancements in surgical techniques, such as piezoelectric surgery, have gained popularity due to their purported advantages in terms of precision, safety, and postoperative outcomes.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!