scholarly journals Bulk-Fill restorative materials in primary tooth: An intrapulpal temperature changes study

2018 ◽  
Vol 9 (5) ◽  
pp. 52 ◽  
Author(s):  
Halenur Altan ◽  
Zeynep Göztas ◽  
Zeki Arslanoglu
Keyword(s):  
Primary Tooth ◽  
Temperature Changes ◽  
Restorative Materials

scholarly journals Temperature changes under demineralized dentin during polymerization of three resin-based restorative materials using QTH and LED units

2014 ◽  
Vol 39 (3) ◽  
pp. 155
Author(s):  
Sayed-Mostafa Mousavinasab ◽  
Maryam Khoroushi ◽  
Mohammadreza Moharreri ◽  
Mohammad Atai
Keyword(s):  
Temperature Changes ◽  
Restorative Materials ◽  
Demineralized Dentin

In vitro occlusal wear of restorative materials on primary teeth

2005 ◽  
Vol 29 (3) ◽  
pp. 221-224 ◽  
Author(s):  
P. Villalta ◽  
C.R. Rodrigues
Keyword(s):  
Tooth Enamel ◽  
Pediatric Dentistry ◽  
Permanent Tooth ◽  
Primary Tooth ◽  
In Vitro Test ◽  
Test Protocol ◽  
Occlusal Wear ◽  
Restorative Materials ◽  
Materials Used

Since primary tooth enamel wears more rapidly than permanent tooth enamel, it is important to study the mechanical wear patterns of restorative materials used in the primary dentition. It is important that an in vitro evaluation of wear resistance of different restorative materials is done in order to establish a valid in vitro test protocol for use in pediatric dentistry.

scholarly journals Intrapulpal temperature changes during curing of different bulk-fill restorative materials

2017 ◽  
Vol 36 (5) ◽  
pp. 566-572 ◽  
Author(s):  
Elif YASA ◽  
Cigdem ATALAYIN ◽  
Gamze KARACOLAK ◽  
Tugrul SARI ◽  
L. Sebnem TURKUN
Keyword(s):  
Temperature Changes ◽  
Restorative Materials

Comparative Evaluation of Erosive Potential of Different Pediatric Liquid Medications on Primary Tooth Enamel and Tooth Coloured Restorative Materials

2021 ◽  
Vol 13 ◽  
pp. 30-36
Author(s):  
Dr. Sara Elizabeth Paul ◽  
Dr. Divya Reddy ◽  
Dr. Santhosh T Paul ◽  
Dr. Shuhaib A Rahman
Keyword(s):  
Surface Roughness ◽  
Composite Resin ◽  
Tooth Enamel ◽  
Artificial Saliva ◽  
Glass Ionomer Cement ◽  
Titratable Acidity ◽  
Primary Tooth ◽  
Glass Ionomer ◽  
Restorative Materials ◽  
Ionomer Cement

Aim: The aim of the present study was to investigate the erosive potential of pediatric liquid analgesics and their effect on primary enamel, glass ionomer and composite resin restorations. Methods: Selected medications were analysed in triplicates with regard to pH and titratable acidity. Eighteen specimens each of glass ionomer, composite resin and primary enamel were prepared and stored in 100% relative humidity at 37ºC for 7 days. After baseline surface roughness analysis using 3D optical profilometer, specimens were randomly distributed according to immersion media into three groups (n=6) as follows: Group 1- Calpol® ( Paracetamol), Group 2–Ibugesic® (Ibuprofen) and Group 3 –Artificial saliva (control). The specimens were subjected to immersion cycles for 5 days following which surface roughness was measured. Data were analysed using analysis of variance (ANOVA) and Tukey’s test. Results: Ibugesic ® showed the lowest titratable acidity and mean pH when compared to Calpol®. The glass ionomer cement exhibited highest surface roughness followed by primary enamel and composite resin both at baseline and after immersion. The highest mean surface roughness change for glass ionomer cement was observed when exposed to Ibugesic® (0.04 ± 0.13) when compared to Calpol® (0.006 ± 0.01) and artificial saliva (0.035 ± 0.05). Conclusions: Although minimal, the restorative materials and primary enamel subjected to acidic medicines showed surface roughness changes and among the pediatric liquid analgesics tested, Ibugesic® was observed to be highly erosive with lower pH and high titratable acidity

Cryo-TEM of amphiphilic polymer and amphiphile/polymer solutions

1993 ◽  
Vol 51 ◽  
pp. 876-877
Author(s):  
Yeshayahu Talmon
Keyword(s):  
Microstructural Characterization ◽  
Building Blocks ◽  
Quantitative Information ◽  
Physical Models ◽  
Specimen Preparation ◽  
Time Resolved ◽  
Temperature Changes ◽  
Temperature And Humidity ◽  
Microstructured Fluids ◽  
Air Streams

To achieve complete microstructural characterization of self-aggregating systems, one needs direct images in addition to quantitative information from non-imaging, e.g., scattering or Theological measurements, techniques. Cryo-TEM enables us to image fluid microstructures at better than one nanometer resolution, with minimal specimen preparation artifacts. Direct images are used to determine the “building blocks” of the fluid microstructure; these are used to build reliable physical models with which quantitative information from techniques such as small-angle x-ray or neutron scattering can be analyzed.To prepare vitrified specimens of microstructured fluids, we have developed the Controlled Environment Vitrification System (CEVS), that enables us to prepare samples under controlled temperature and humidity conditions, thus minimizing microstructural rearrangement due to volatile evaporation or temperature changes. The CEVS may be used to trigger on-the-grid processes to induce formation of new phases, or to study intermediate, transient structures during change of phase (“time-resolved cryo-TEM”). Recently we have developed a new CEVS, where temperature and humidity are controlled by continuous flow of a mixture of humidified and dry air streams.

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