Photoelastic stress analysis of different types of anterior teeth splints

2020 ◽  
Author(s):  
Murilo Baena Lopes ◽  
Klissia Romero Felizardo ◽  
Ricardo Danil Guiraldo ◽  
Karina Fancio Sella ◽  
Sérgio Ramos Junior ◽  
...  
Keyword(s):  
Stress Analysis ◽  
Anterior Teeth ◽  
Different Types ◽  
Photoelastic Stress

scholarly journals Stress Analysis of Endodontically Treated Anterior Teeth Restored with Different Types of Post Material

2006 ◽  
Vol 25 (1) ◽  
pp. 145-150 ◽  
Author(s):  
Takashi NAKAMURA ◽  
Tatsuo OHYAMA ◽  
Tomonori WAKI ◽  
Soichiro KINUTA ◽  
Kazumichi WAKABAYASHI ◽  
...  
Keyword(s):  
Stress Analysis ◽  
Anterior Teeth ◽  
Different Types

Influence of Crown-to-Implant Ratio on Stress Around Single Short-Wide Implants: A Photoelastic Stress Analysis

2014 ◽  
Vol 24 (1) ◽  
pp. 52-56 ◽  
Author(s):  
Bruno Salles Sotto-Maior ◽  
Plinio Mendes Senna ◽  
João Paulo da Silva-Neto ◽  
Mauro Antônio de Arruda Nóbilo ◽  
Altair Antoninha Del Bel Cury
Keyword(s):  
Stress Analysis ◽  
Photoelastic Stress

Marginal fit and photoelastic stress analysis of CAD-CAM and overcast 3-unit implant-supported frameworks

2017 ◽  
Vol 117 (3) ◽  
pp. 373-379 ◽  
Author(s):  
Anna Gabriella Camacho Presotto ◽  
Cláudia Lopes Brilhante Bhering ◽  
Marcelo Ferraz Mesquita ◽  
Valentim Adelino Ricardo Barão
Keyword(s):  
Stress Analysis ◽  
Marginal Fit ◽  
Cad Cam ◽  
Photoelastic Stress

Photoelastic stress analysis of overdenture attachments

1980 ◽  
Vol 43 (6) ◽  
pp. 611-617 ◽  
Author(s):  
Harley H. Thayer ◽  
Angelo A. Caputo
Keyword(s):  
Stress Analysis ◽  
Photoelastic Stress

scholarly journals An Automatic System for Photoelastic Stress Analysis

1986 ◽  
Vol 29 (255) ◽  
pp. 2784-2788
Author(s):  
Tomoaki TSUJI ◽  
Toshikazu SHIBUYA ◽  
Takashi KOIZUMI
Keyword(s):  
Stress Analysis ◽  
Automatic System ◽  
Photoelastic Stress

scholarly journals Assessment of the Prevalence of the Different Types of Vertucci’s Root Canal Configurations in Mandibular Anterior Teeth

2021 ◽  
Vol 12 (2) ◽  
pp. 5-8
Author(s):  
Sachin Passi ◽  
Amit Bhagat ◽  
Preeti Choudhary ◽  
Aiyana Parthi ◽  
Sourabh Bhagat ◽  
...  
Keyword(s):  
Root Canal ◽  
Anterior Teeth ◽  
Different Types

scholarly journals Do NiTi Instruments show Defects before Separation? Defects caused by Torsional Fatigue in Hand and Rotary Nickel-Titanium (NiTi) Instruments which Lead to Failure during Clinical Use

2012 ◽  
Vol 13 (6) ◽  
pp. 867-872 ◽  
Author(s):  
Sudhir Kumar ◽  
P Ratnakar ◽  
NV Murali Krishna Chakka ◽  
Sanjib Das ◽  
Anandamy Bagchi ◽  
...  
Keyword(s):  
Nickel Titanium ◽  
Clinical Use ◽  
New Classification ◽  
Torsional Fatigue ◽  
Anterior Teeth ◽  
Microscopic Evaluation ◽  
Different Types ◽  
Before And After ◽  
The Difference ◽  
Niti Instruments

ABSTRACT Aims Visual and microscopic evaluation of defects caused by torsional fatigue in hand and rotary nickel titanium (NiTi) instruments. Materials and methods Ninety-six NiTi greater taper instruments which were routinely used for root canal treatment only in anterior teeth were selected for the study. The files taken include ProTaper for hand use, ProTaper Rotary files and Endowave rotary files. After every use, the files were observed visually and microscopically (Stereomicroscope at 10×) to evaluate the defects caused by torsional fatigue. Scoring was given according to a new classification formulated which gives an indication of the severity of the defect or damage. Statistical analysis Data was statistically analyzed using KruskallWallis and Mann-Whitney U test. Results Number of files showing defects were more under stereomicroscope than visual examination. But, the difference in the evaluation methods was not statistically significant. The different types of defects observed were bent instrument, straightening/stretching of twist contour and partial reverse twisting. Endowave files showed maximum number of defects followed by ProTaper for hand use and least in ProTaper Rotary. Conclusion Visible defects due to torsional fatigue do occur in NiTi instruments after clinical use. Both visual and microscopic examinations were efficient in detecting defects caused due to torsional fatigue. This study emphasizes that all files should be observed for any visible defects before and after every instrumentation cycle to minimize the risk of instrument separation and failure of endodontic therapy. How to cite this article Chakka NVMK, Ratnakar P, Das S, Bagchi A, Kumar S, Anumula L. Do NiTi Instruments show Defects before Separation? Defects caused by Torsional Fatigue in Hand and Rotary Nickel-Titanium (NiTi) Instruments which Lead to Failure during Clinical Use. J Contemp Dent Pract 2012;13(6):867-872.

Photoelastic stress analysis of reinforced polycarbonate orthodontic brackets

Strain ◽  
1993 ◽  
Vol 29 (2) ◽  
pp. 55-58
Author(s):  
C.D.J. Rushforth ◽  
D.R. Bearn ◽  
J.C. Aird
Keyword(s):  
Stress Analysis ◽  
Orthodontic Brackets ◽  
Photoelastic Stress
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