A BASIC PHOSPHATE OF CALCIUM AND OF STRONTIUM AND THE ADSORPTION OF CALCIUM HYDROXIDE BY BASIC CALCIUM PHOSPHATE AND BY TRICALCIUM PHOSPHATE

1929 ◽  
Vol 51 (4) ◽  
pp. 1097-1106 ◽  
Author(s):  
James R. Lorah ◽  
Herman V. Tartar ◽  
Lillian Wood
Keyword(s):  
Calcium Phosphate ◽  
Calcium Hydroxide ◽  
Tricalcium Phosphate ◽  
Basic Calcium Phosphate

scholarly journals Apexification

2013 ◽  
Vol 01 (01) ◽  
pp. 055-057
Author(s):  
Amandeep Singh Uppal ◽  
Jagat Bhushan ◽  
Mandeep Kaur Bhullar ◽  
Gulsheen Kaur Kochhar
Keyword(s):  
Surgical Treatment ◽  
Calcium Phosphate ◽  
Calcium Hydroxide ◽  
Bone Morphogenetic Proteins ◽  
Tricalcium Phosphate ◽  
Root Formation ◽  
Permanent Teeth ◽  
Treatment Modalities ◽  
Traumatic Injuries ◽  
Non Surgical Treatment

AbstractApexification is a method to induce a calcific barrier across an open apex of an immature, pulpless tooth. Apical closure occurs approximately three years after eruption. Traumatic injuries to young permanent teeth before root formation is complete commonly occur in children resulting in open apex. This can be treated by Surgical or Non - Surgical treatment modalities. Non surgical treatment modalities include various methods such as Customized cone, Short fill technique, Apexification with various materials and One visit apexification. Various materials that can be used for apexification include Calcium hydroxide, MTA, Tricalcium phosphate, Dentin chips, Calcium phosphate ceramics and hydroxyapatite and bone morphogenetic proteins. Calcium hydroxide is the most common and traditional material employed for inducing apexification. This is a multi visit technique requiring six months to four years to complete.

Crystal-Induced Osteoarthritis: the Role of Basic Calcium Phosphate Crystals

TRAUMA ◽  
2017 ◽  
Vol 17 (6) ◽  
pp. 9-15
Author(s):  
I.Yu. Golovach
Keyword(s):  
Calcium Phosphate ◽  
Basic Calcium Phosphate ◽  
Basic Calcium Phosphate Crystals

scholarly journals The preparation and application of calcium phosphate biomedical composites in filling of weight-bearing bone defects

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Lijia Cheng ◽  
Tianchang Lin ◽  
Ahmad Taha Khalaf ◽  
Yamei Zhang ◽  
Hongyan He ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Calcium Phosphate ◽  
Tricalcium Phosphate ◽  
Weight Bearing ◽  
Bone Defects ◽  
Type I ◽  
Artificial Bone ◽  
Thermosensitive Hydrogel ◽  
Bone Repairing ◽  
Histological Staining

AbstractNowadays, artificial bone materials have been widely applied in the filling of non-weight bearing bone defects, but scarcely ever in weight-bearing bone defects. This study aims to develop an artificial bone with excellent mechanical properties and good osteogenic capability. Firstly, the collagen-thermosensitive hydrogel-calcium phosphate (CTC) composites were prepared as follows: dissolving thermosensitive hydrogel at 4 °C, then mixing with type I collagen as well as tricalcium phosphate (CaP) powder, and moulding the composites at 37 °C. Next, the CTC composites were subjected to evaluate for their chemical composition, micro morphology, pore size, Shore durometer, porosity and water absorption ability. Following this, the CTC composites were implanted into the muscle of mice while the 70% hydroxyapatite/30% β-tricalcium phosphate (HA/TCP) biomaterials were set as the control group; 8 weeks later, the osteoinductive abilities of biomaterials were detected by histological staining. Finally, the CTC and HA/TCP biomaterials were used to fill the large segments of tibia defects in mice. The bone repairing and load-bearing abilities of materials were evaluated by histological staining, X-ray and micro-CT at week 8. Both the CTC and HA/TCP biomaterials could induce ectopic bone formation in mice; however, the CTC composites tended to produce larger areas of bone and bone marrow tissues than HA/TCP. Simultaneously, bone-repairing experiments showed that HA/TCP biomaterials were easily crushed or pushed out by new bone growth as the material has a poor hardness. In comparison, the CTC composites could be replaced gradually by newly formed bone and repair larger segments of bone defects. The CTC composites trialled in this study have better mechanical properties, osteoinductivity and weight-bearing capacity than HA/TCP. The CTC composites provide an experimental foundation for the synthesis of artificial bone and a new option for orthopedic patients.

Osteoarthritis, a basic calcium phosphate crystal-associated arthropathy? Comment on the article by Fuerst et al

2010 ◽  
Vol 62 (9) ◽  
pp. 2829-2830 ◽  
Author(s):  
Christelle Nguyen ◽  
Hang-Korng Ea ◽  
Dominique Bazin ◽  
Michel Daudon ◽  
Frédéric Lioté
Keyword(s):  
Calcium Phosphate ◽  
Basic Calcium Phosphate ◽  
Calcium Phosphate Crystal ◽  
Basic Calcium Phosphate Crystal

Synthesis of Alpha-Tricalcium Phosphate by Wet Reaction and Evaluation of Mechanical Properties

2012 ◽  
Vol 727-728 ◽  
pp. 1164-1169 ◽  
Author(s):  
Mônica Beatriz Thürmer ◽  
Rafaela Silveira Vieira ◽  
Juliana Machado Fernandes ◽  
Wilbur Trajano Guerin Coelho ◽  
Luis Alberto Santos
Keyword(s):  
Mechanical Properties ◽  
Calcium Phosphate ◽  
Tricalcium Phosphate ◽  
Calcium Nitrate ◽  
Chemical Precipitation ◽  
Particle Size Analysis ◽  
Size Analysis ◽  
X Ray Diffraction ◽  
X Ray ◽  
Calcium Phosphate Cements

Calcium phosphate cements have bioactivity and osteoconductivity and can be molded and replace portions of bone tissue. The aim of this work was to study the obtainment of α-tricalcium phosphate, the main phase of calcium phosphate cement, by wet reaction from calcium nitrate and phosphoric acid. There are no reports about α-tricalcium phosphate obtained by this method. Two routes of chemical precipitation were evaluated and the use of two calcinations temperatures to obtain the phase of cement. The influence of calcination temperature on the mechanical properties of cement was evaluated. Cement samples were characterized by particle size analysis, X-ray diffraction, mechanical strength and scanning electron microscopy. The results demonstrate the strong influence of synthesis route on the crystalline phases of cement and the influence of concentration of reactants on the product of the reaction, as well as, on the mechanical properties of cement.

Enhanced effect of β-tricalcium phosphate phase on neovascularization of porous calcium phosphate ceramics: In vitro and in vivo evidence

2015 ◽  
Vol 11 ◽  
pp. 435-448 ◽  
Author(s):  
Y. Chen ◽  
J. Wang ◽  
X.D. Zhu ◽  
Z.R. Tang ◽  
X. Yang ◽  
...  
Keyword(s):  
Calcium Phosphate ◽  
Tricalcium Phosphate ◽  
Calcium Phosphate Ceramics ◽  
Phosphate Phase

Tracking the local environment of Eu3+ in Eu3+-doped calcium phosphate during hydroxyapatite crystallization and its phase transformation to tricalcium phosphate

2021 ◽  
Author(s):  
Macgregor Macintosh ◽  
Qianting Yao ◽  
Jie Xu ◽  
Zhaohui Dong ◽  
Lo-Yueh Chang ◽  
...  
Keyword(s):  
Phase Transformation ◽  
Calcium Phosphate ◽  
Tricalcium Phosphate ◽  
Local Environment

Magnesium calcium phosphate/β-tricalcium phosphate incorporation into gelatin scaffold: anin vitrocomparative study

2012 ◽  
Vol 8 (11) ◽  
pp. 919-924 ◽  
Author(s):  
Ahmed Hussain ◽  
Kazuhisa Bessho ◽  
Katsu Takahashi ◽  
Yasuhiko Tabata
Keyword(s):  
Calcium Phosphate ◽  
Tricalcium Phosphate ◽  
Phosphate Incorporation

Processing and in vivo evaluation of multiphasic calcium phosphate cements with dual tricalcium phosphate phases

2012 ◽  
Vol 8 (9) ◽  
pp. 3500-3508 ◽  
Author(s):  
Marco A. Lopez-Heredia ◽  
Matilde Bongio ◽  
Marc Bohner ◽  
Vincent Cuijpers ◽  
Louis A.J.A. Winnubst ◽  
...  
Keyword(s):  
Calcium Phosphate ◽  
Tricalcium Phosphate ◽  
In Vivo Evaluation ◽  
Calcium Phosphate Cements
Sign in / Sign up

Export Citation Format

Share Document