Search results for "riga"
showing 10 items of 700 documents
The effect of passive ultrasonic activation of 2% chlorhexidine or 3% sodium hypochlorite in canal wall cleaning.
2014
Objectives: the purpose of this study was to compare debris removal and open tubules effectiveness of sodium hypochlorite (NaOCl) and chlorhexidine (CHX) applied as final irrigation in different protocols Study Design: sixty extracted premolars were divided into six groups according to the final irrigation technique: A and B 3 % NaOCl or 2 % CHX with the Miraject needle and no agitation; C and D, passive ultrasonic irrigation (PUI) with Irrisafe 20 tips and 3 % NaOCl or 2 % CHX; E and F, PUI with Irrisafe 25 tips and 3 % NaOCl or 2% CHX. The remaining dentine debris and opened tubules were evaluated by SEM at three root levels by two blinded investigators. The Kruskal Wallis and the Mann-Wh…
An unusual traumatic ulceration of the tongue
2012
No abstract
Review of ultrasonic irrigation in endodontics: increasing action of irrigating solutions
2011
Introduction: Effective irrigant delivery and agitation are prerequisites for successful endodontic treatment. Ultrasonic irrigation can be performed with or without simultaneous ultrasonic instrumentation. Existing literature reveals that ultrasonic irrigation may have a very positive effect on chemical, biological and physical debridement of the root canal system as investigated in many in vitro studies. Objective: The purpose of this review article was to summarize and discuss the available information concerning ultrasonic irrigation in endodontics. Methods: This article presents an overview of ultrasonic irrigation methods and their debridement efficacy. In this paper the relevant lite…
Effect of post-space irrigation with acid solutions on bond strength and dentin penetrability using a self-adhesive cementation system
2021
Made available in DSpace on 2022-04-29T08:29:40Z (GMT). No. of bitstreams: 0 Previous issue date: 2021-06-01 Background: The aim of this study was to evaluate the effects of surface treatments with 1% peracetic acid (PA), solution containing 17% EDTA (SmearClear, Kerr Endodontics), solution containing a combination of 17% EDTA with 2% chlorhexidine (QMix, Dentsply Sirona) on the post-space root dentin compared to 2.5% sodium hypochlorite (NaOCl) on bond strength and resin tags length in dentin. Material and Methods: Forty human-canine roots were endodontically treated and the post space was prepared. The specimens were randomised into four groups (n = 10): control - irrigation with 2.5% NaO…
Temporomandibular joint arthrocentesis. Review of the literature.
2011
The treatment of the temporomandibular joint (TMJ) is still controversial. TMJ arthrocentesis represents a form of minimally invasive surgical treatment in patients suffering from internal derangement of the TMJ, especially closed lock. It consists of washing the joint with the possibility of depositing a drug or other therapeutic substance. Resolution of symptoms is due to the removal of chemical inflammatory mediators and changes in intra-articular pressure. Numerous clinical studies regarding this technique have been published. The goal of this paper is to review all clinical articles that have been published with regard to the critique of this technique. 19 articles with different desig…
“Throwing into the Whirlwind Vortex”: Unaccounted Memoirs about Blok by S. Korenev
2021
The article examines certain plots of the “Blok theme” in the 1920s Riga periodicals, which had not previously attracted the attention of researchers. The Russian press of independent Latvia (1919 –1940) has preserved many tens, if not hundreds, of articles, correspondences, documents, poetic texts dedicated to A.A. Blok’s personality and works. Among them are memoirs of people who were familiar with the poet, met with him, listened to his speeches. However, most of these scattered memoirs remain forgotten and are not taken into account in the Blok studies. The author recalls the texts of V.V. Tretyakov, A.M. Perfiliev and republishes from the Riga newspaper “Slovo” a memorial article about…
IL SOFTWARE IRRILAB PER GLI IMPIANTI MICROIRRIGUI: VERIFICHE NUMERICHE E SPERIMENTALI
2018
Nell’ambito delle attività di ricerca condotte presso il Dipartimento di Scienze Agrarie, Alimentari e Forestali dell’Università di Palermo è stato di recente messo a punto un nuovo metodo di calcolo ottimale delle ali gocciolanti, usate nella mi-croirrigazione, attualmente patent pending (“Metodo speditivo per il dimensiona-mento di ali gocciolanti in pendenza”, Università deli Studi di Palermo, Ministero dello Sviluppo Economico - Ufficio Italiano Brevetti e Marchi). Il metodo è stato successivamente esteso ai settori microirrigui, di forma rettangolare e comunque inclinati, in un software applicativo, denominato IrriLab. L’obiettivo del lavoro è quello di “testare” il funzionamento del s…
Snail fauna of the oldest cemeteries from Riga (Latvia)
2008
We report on the snail fauna from one of the oldest cemeteries from Riga city (Latvia), viz. Lielie kapi and Pokrova kapi. A list of all the snail species recorded from both cemeteries and limited information on the biotope conditions are given. Cecilioides acicula (O.F. Müller, 1774) is first recorded from Latvia and was found at a grassland within the tomb area of the Pokrova kapi cemetery.
Sediment quality of the ecoregion Engure, Gulf of Riga, assessed by using ecotoxicity tests and biomarker responses
2014
Pētījuma mērķis bija novērtēt Engures ekoreģiona (Rīgas līča rietumu piekrastes) sedimentu kvalitāti, izmantojot sedimentu ekotoksicitātes testus. Lai noteiktu bioloģiskās atbildes reakcijas uz dažāda veida stresoriem, kā testorganismi pielietotas sānpeldes Monoporeia affinis and Pontogammarus robustoides, un izvēlēti biomarķieri (AChE, GST, GR, CAT, MT), kas noteikti gliemenēs Macoma balthica. Engures ekoreģionu varētu uzskatīt par nepiesārņotu rajonu, jo tā sedimentus raksturo salīdzinoši zemas smago metālu koncentrācijas. Engures ekoreģiona sedimentu ekotoksicitātes testu rezultāti neuzrādīja statistiski būtisku (>20% mirstība) toksisko efektu. Testorganismu izdzīvotība bija robežās no 8…
La Pazzia Senile e la sua regolata "fabrica"
2022
The contribution analyzes Adriano Banchieri’s “La Pazzia Senile” (1598-59) both as a publishing product, following its genesis and fortune, and as a poetic-musical artifact, examining its compositional style and performative implications. An in-depth study is devoted in particular to the relationship between “La Pazzia Senile” and commedia dell'arte