Results 11 to 20 of about 136,412 (330)

Tensile Strength Essay Comparing Three Different Platelet-Rich Fibrin Membranes (L-PRF, A-PRF, and A-PRF+): A Mechanical and Structural In Vitro Evaluation

Polymers, 2022
Predictable outcomes intended by the application of PRF (platelet-rich fibrin) derivative membranes have created a lack of consideration for their consistency and functional integrity. This study aimed to compare the mechanical properties through tensile strength and analyze the structural organization among the membranes produced by L-PRF (leukocyte ...
Mara Simões-Pedro, Pedro Maria B. P. S. Tróia, Nuno Bernardo Malta dos Santos, António M. G. Completo, Rogerio Moraes Castilho, Gustavo Vicentis de Oliveira Fernandes   +5 more
openaire   +5 more sources

An in vitro study into three different PRF preparations for osteogenesis potential.

Journal of Periodontal Research, 2023
OBJECTIVE To investigate the effect of Advanced Platelet-Rich Fibrin (A-PRF+), Leukocyte Platelet-Rich Fibrin (L-PRF), and injectable Platelet-Rich Fibrin (i-PRF) on osteogenesis of a human osteoblast-like cell line in vitro.
Kostantinos Kosmidis, Karishma Ehsan, L. Pitzurra, B. Loos, I. Jansen   +4 more
semanticscholar   +1 more source

To Interpolate or not to Interpolate: PRF, Dense and Sparse Retrievers [PDF]

Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, 2022
Current pre-trained language model approaches to information retrieval can be broadly divided into two categories: sparse retrievers (to which belong also non-neural approaches such as bag-of-words methods, e.g., BM25) and dense retrievers. Each of these
Hang Li, Shuai Wang, Shengyao Zhuang, Ahmed Mourad, Xueguang Ma, Jimmy J. Lin, G. Zuccon   +6 more
semanticscholar   +1 more source

Use of PRP, PRF and CGF in Periodontal Regeneration and Facial Rejuvenation—A Narrative Review

Biology, 2021
Simple Summary Growth factors play a vital role in cell proliferation, migration, differentiation and angiogenesis. Autologous platelet concentrates which contain high levels of growth factors are used in many fields of dentistry.
E. Mijiritsky, Haya Drora Assaf, O. Peleg, M. Shacham, L. Cerroni, L. Mangani   +5 more
semanticscholar   +1 more source

Referenceless PRF shift thermometry [PDF]

Magnetic Resonance in Medicine, 2004
AbstractThe proton resonance frequency (PRF) shift provides a means of measuring temperature changes during minimally invasive thermotherapy. However, conventional PRF thermometry relies on the subtraction of baseline images, which makes it sensitive to tissue motion and frequency drift during the course of treatment.
Viola, Rieke, Karl K, Vigen, Graham, Sommer, Bruce L, Daniel, John M, Pauly, Kim, Butts   +5 more
openaire   +2 more sources

ColBERT-PRF: Semantic Pseudo-Relevance Feedback for Dense Passage and Document Retrieval

ACM Transactions on the Web, 2022
Pseudo-relevance feedback mechanisms, from Rocchio to the relevance models, have shown the usefulness of expanding and reweighting the users’ initial queries using information occurring in an initial set of retrieved documents, known as the pseudo ...
Xiao Wang, Craig Macdonald, N. Tonellotto, I. Ounis   +3 more
semanticscholar   +1 more source

Regenerative Endodontic Treatment of Permanent Teeth with Open Apex: Case Series

European Annals of Dental Sciences, 2022
The purpose of these case reports is the follow-up of root development and lesions in the apical with different regenerative protocols applied to teeth with vital or vital open apex.
Tunahan Döken, Emre Bayram, Seyma Gercekçioğlu, Hilal Ekmen, Melike Bayram   +4 more
doaj   +1 more source

Comparison of the efficacy of the nictitating membrane flap, conjunctival pedicle flap, and platelet-rich fibrin membrane graft techniques in the surgical management of corneal necrosis in cats: a retrospective study (2016-2020) [PDF]

Kafkas Universitesi Veteriner Fakültesi Dergisi, 2021
The presented study was designed to compare the clinical features and the surgical outcomes of three techniques, such as the conjunctival pedicle flap (CPF), platelet-rich fibrin membrane graft (PRFMG), and nictitating membrane flap (NMF) applied after ...
Aynur DEMİR, Yusuf ALTUNDAĞ
doaj   +1 more source

Growth Factor Release within Liquid and Solid PRF

Journal of Clinical Medicine, 2022
Aim: The purpose of this study was to obtain data concerning growth factor release within liquid and solid platelet-rich fibrin (PRF) matrices and to estimate the amount of potential interindividual variations as a basis for further preclinical and ...
Katharina Zwittnig, B. Kirnbauer, N. Jakse, P. Schlenke, I. Mischak, S. Ghanaati, S. Al-Maawi, Dániel Végh, M. Payer, Tomislav A. Zrnc   +9 more
semanticscholar   +1 more source

Assessment of pulp sensibility in the mature necrotic teeth using regenerative endodontic therapy with various scaffolds – Randomised clinical trial

Indian Journal of Dental Research, 2021
Aim: This study aimed to evaluate and compare the possibility of regaining pulp sensibility and objectives of regeneration procedure in mature necrotic teeth using regenerative endodontics.
Neelam Mittal, Harakh C Baranwal, Praveen Kumar, Sakshi Gupta   +3 more
doaj   +1 more source