scholarly journals Assessment of the fracture strength of straight and pre-angled (17°) zircon implant abutments supported CADCAM zerconium restoration: An in(vitro study).

2016 ◽  
Vol 16 (1) ◽  
pp. 77-83
Author(s):  
Zardasht Abdulghafoor ◽  
Talal Al-salman ◽  
Allaa Daham
Keyword(s):  
Fracture Strength ◽  
In Vitro Study ◽  
Vitro Study ◽  
Implant Abutments

In-vitro study of fracture strength and marginal adaption of fibre-reinforced adhesive fixed partial inlay dentures

1999 ◽  
Vol 27 (2) ◽  
pp. 163-168 ◽  
Author(s):  
M Behr ◽  
M Rosentritt ◽  
A Leibrock ◽  
S Schneider-Feyrer ◽  
G Handel
Keyword(s):  
Fracture Strength ◽  
In Vitro Study ◽  
Vitro Study

Effect of Calcium Hydroxide as a Root Canal Dressing Material on Dentin Fracture Strength In Primary Teeth–In Vitro Study

2018 ◽  
Vol 42 (2) ◽  
pp. 146-149
Author(s):  
Fadi Said ◽  
Moti Moskovitz
Keyword(s):  
Calcium Hydroxide ◽  
Fracture Strength ◽  
Root Canal ◽  
Primary Teeth ◽  
In Vitro Study ◽  
Vitro Study ◽  
Root Canal Treatment ◽  
Root Canals ◽  
Anterior Teeth

Objectives: The aim of the present study was to assess the effect of calcium hydroxide as a root canal dressing material on dentin microtensile fracture strength in human primary teeth in vitro. Study design: Thirty primary anterior teeth with root canals packed with calcium hydroxide were divided into groups of ten and immersed in saline at room temperature for 7, 30 and 90 days. Ten teeth with root canals filled with sterile saline were the control group. Microtensile fracture strength was measured in Mechanical tester Lloyd testing machine. Results: There was a significant difference (P < 0.05) between the fracture strength of the calcium hydroxide-filled teeth after 90 days (19.1 MPa) compared with the control (35.8 MPa). Dentin microtensile fracture strength of the calcium hydroxide-filled teeth decreased at an average of 0.142 MPa per day. Conclusion: Calcium hydroxide placed in root canals for an extended time had a significantly negative effect on root strength. Long-term success of root canal treatment in primary anterior teeth is estimated as 65% with most of the failures result from trauma recurrence. Clinical Relevance: Our results stress the need to evaluate the pros and cons of root canal treatment compared to extractions of non-vital primary incisors.

Fracture strength of yttria-stabilized tetragonal zirconia polycrystals crowns with different design: an in vitro study

2011 ◽  
Vol 23 (7) ◽  
pp. 820-826 ◽  
Author(s):  
Christel Larsson ◽  
Sammah El Madhoun ◽  
Ann Wennerberg ◽  
Per Vult von Steyern
Keyword(s):  
Fracture Strength ◽  
Tetragonal Zirconia ◽  
In Vitro Study ◽  
Vitro Study
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