Results 121 to 130 of about 9,081 (296)

Why Is Exclusivity in Broadcasting Rights Prevalent and Why Does Simple Regulation Fail?

The RAND Journal of Economics, EarlyView.
ABSTRACT Pay‐TV firms compete both downstream to attract viewers and upstream to acquire broadcasting rights. Because profits inherited from downstream competition satisfy a convexity property, allocating rights to the dominant firm maximizes the industry profit.
David Martimort, Jerome Pouyet
wiley   +1 more source

Comparison of Endodontic Medicaments on Bond Strength of Fiber Post to Root Dentin Using Resin Cement. [PDF]

, 2017
STATEMENT OF THE PROBLEM Endodontic irrigants and medicaments may affect the bond strength of intracanal posts to root dentin. PURPOSE The aim of this study was to compare the effect of calcium hydroxide (Ca(OH)2) and 2% chlorhexidine gel (CHX ...
Barekatain, Mehrdad., Kousehlar, Sara., Ranjbarian, Parisa., Ravanbod, Shirin., Zare Jahromi, Maryam.   +4 more
core   +1 more source

Identifying Clinical Variations Across NSW Public Dental Service: An Essential Step to Develop a Roadmap for Value‐Based Oral Healthcare

Australian Dental Journal, EarlyView.
ABSTRACT Objective This research examines the extent of clinical variation across the NSW public dental service, the largest in Australia. Findings may assist policy makers in reducing variation of care and inequity towards value‐based oral healthcare. Methods Four years of demographic and treatment data, for 741,450 patients between 1 July 2019 and 30
Albert Yaacoub, Tony Skapetis
wiley   +1 more source

Effect of Intracanal Medications on the Viability of Human Periodontal Ligament‐Derived Mesenchymal Stem Cells

Australian Endodontic Journal, EarlyView.
ABSTRACT This in vitro study evaluated the effects of intracanal medications on the metabolic activity and adhesion of human periodontal ligament‐derived mesenchymal stem cells. Tested groups included Control (without medication), Triple Antibiotic Paste (TAP), Double Antibiotic Paste (DAP), calcium hydroxide with saline, calcium hydroxide with 2 ...
Arian Braido, Walbert de Andrade Vieira, Bruno Cazotti Pereira, Karina Gonzales Silvério, Paulo Henrique Gabriel, Aline Cristine Gomes Matta, Emerson Alves Martins, Adriana de Jesus Soares   +7 more
wiley   +1 more source

Retreatment Strategies for Cases Containing Calcium Silicate-Based Root Canal Sealers: A Comprehensive Review

Dentistry Journal
This review explores the field of retreatment strategies for cases filled with calcium silicate-based root canal sealers. Since the introduction of calcium silicate-based materials in dentistry, calcium silicate-based root canal sealers have become ...
Hussain Al akam, Hyeon-Cheol Kim, Ji Wook Jeong   +2 more
doaj   +1 more source

Antibacterial activity of root canal filling materials for primary teeth: zinc oxide and eugenol cement, Calen paste thickened with zinc oxide, Sealapex and EndoREZ [PDF]

This study evaluated in vitro the antibacterial activity of 4 root canal filling materials for primary teeth - zinc oxide and eugenol cement (ZOE), Calen paste thickened with zinc oxide (Calen/ZO), Sealapex sealer and EndoREZ sealer - against 5 bacterial
ASSED, Sada, ITO, Izabel Yoko, NELSON FILHO, Paulo, QUEIROZ, Alexandra Mussolino de, SILVA, Léa Assed Bezerra da, SILVA, Raquel Assed Bezerra da   +5 more
core   +1 more source

Cyotoxicity of Etidronate as an Endodontic Chelator Against Periodontal Ligament Fibroblast

Australian Endodontic Journal, EarlyView.
ABSTRACT Etidronic acid (HEBP) causes fewer alterations in dentine and can be used mixed with sodium hypochlorite during root canal preparation. This study investigated the cytotoxicity effects of the HEDP and EDTA on human periodontal ligament fibroblast cells. Primary culture was established from human periodontal ligament tissue of one donor and was
Bruno Vila Nova de Almeida, Patrícia de Almeida Rodrigues, Geovanni Pereira Mitre, Maria Sueli da Silva Kataoka, João de Jesus Viana Pinheiro, Talita Tartari, Oscar Faciola Pessoa   +6 more
wiley   +1 more source

Chemical Stability and Bond Strength of Endodontic Sealers Exposed to Acidic, Alkaline and Protein‐Rich Environments: An In Vitro Investigation

Australian Endodontic Journal, EarlyView.
ABSTRACT The sealing performance of endodontic sealers may be influenced by environmental factors such as pH and blood‐derived proteins. This in vitro study evaluated the effects of pH variation and protein contamination on calcium ion (Ca2+) release and push‐out bond strength (BS) of a calcium silicate‐based sealer (Bio‐C Sealer) and an epoxy resin ...
Walter Raucci‐Neto, Ronaldo Artacho Venter, Antônio Secco Martorano, Victória Gabriela Louzada, Carlos Eduardo Saraiva Miranda, Elias Daniel Covas Rodrigues, Larissa Moreira Spinola de Castro‐Raucci   +6 more
wiley   +1 more source

Desinfeção aplicada aos cones de guta-percha [PDF]

, 2015
Introdução: Ao longo do tempo o Tratamento Endodôntico Não Cirúrgico tem sido das áreas da Medicina Dentária que mais tem evoluído. Todos os passos do tratamento têm sido revistos de forma a aumentar a taxa de sucesso.
Flor, Eduardo Rafael de Lima
core  

Influence of Drying Protocol on the Setting and Crystalline Phase Formation of Calcium Silicate‐Based Sealers

Australian Endodontic Journal, EarlyView.
ABSTRACT The objective of this study was to assess the hydration, crystalline structure, and setting of bioceramic ready‐to‐use and powder/liquid sealers in dry and wet root canal dentine. Thirty‐two single‐rooted human teeth were embedded in acrylic resin and sectioned into 2‐mm segments.
Thiago Bessa Marconato Antunes, Ana Cristina Padilha Janini, Isis Hinnebusch, Nilvan Alves da Silva, Gaspar Darin Filho, Elda Xavier Souza Silveira, Mário Alexandre Coelho Sinhoreti, Bruno Martini Guimarães, Marina Angélica Marciano   +8 more
wiley   +1 more source