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1. In vitro and in vivo performance of self-conditioning sealants with pre-reacted glass for caries prevention

Author

Karla Janilee de Souza Penha, Fábia Regina Vieira de Oliveira Roma, Marina Jansen dos Santos, Geyna Aguiar Soares do Couto, and Leily Macedo Firoozmand

Subjects
Biomaterials, Pit and Fissure Sealants, Fluorides, Mechanics of Materials, Dental Caries Susceptibility, Glass Ionomer Cements, Biomedical Engineering, Animals, Humans, Cattle, Dental Caries, Molar
Abstract

Bioactive materials capable of preventing the development of caries lesions can be an important preventive strategy. This study aims to evaluate in vitro the alkalizing potential, fluoride release, shear bond strength (SBS), and Knoop microhardness (HK) of self-conditioning sealants with pre-reacted glass (S-PRG) and in vivo their retention, quality and caries prevention using the randomized clinical trial (RCT). Dental sealants FS-conventional (Fluoroshield-Dentsply) and BS self-etching (BeautiSealant-Shofu) were evaluated. Sealants samples (n = 5 per group) were performed to verify the alkalizing potential and fluoride release at neutral and acid pH. For mechanical evaluation of both sealants, twenty bovine incisors were used for SBS test, and twenty sealant samples were performed for HK under 50 g load for 15 s. All measurements were taken after 24h and 30 d. A split-mouth RCT including 28 volunteers (10-14 years) with erupted permanent molars and initial enamel caries lesions was conducted to evaluate BS and FS behavior. Sealant retention (total, partial and total loss) and quality scores were analyzed after 30 d. In vitro and in vivo tests were assessed by T-test, and χ

Published
2022

2. EPIdemiology of Surgery-Associated Acute Kidney Injury (EPIS-AKI): study protocol for a multicentre, observational trial

Author

Weiss, Raphael, Saadat-Gilani, Khaschayar, Kerschke, Laura, Wempe, Carola, Meersch, Melanie, Zarbock, Alexander Hichem Makhloufi, Anis, Cherak, Lamine Lakhel Ghanem, Zohier, Gouaglia, Dina Nasrine Guadouri, Fayrouz Naouel Hama, Mustafa, Kara, Omayma, Saadi, Rachida, Sakhraoui, Fadila, Bourou, Abdelhadi, Cherifi, Rahmoune Ghania Sadaoui, Amel, Ouyahia, Ilhem, Ouahab, Souad, Bouaoud, Meriem, Abdoun, Anisse, Tidjane, Benali, Tabeti, Nabil, Boudjenan-Serradj, Carlos Jose Pérez Rivera, Paulo, Cabrer, Julián, Corso, Juan Pablo García, Sharon, Idarraga, Christopher, Montoya, Rafael, Figueroa, Eduar, Aldana, María Alejandra Torrado, Peng, Ke, Zheng-Min, Ma, Yu-Fan, Yang, Ya-Juan, Zhu, Peter, Sklienka, Michal, Frelich, Vojtech, Jarkulis, Pavel, Sevcik, Vojtech, Vodicka, Mohamed Gamal Elbahnasawy, Shady, Elsalhawy, Sara, Motawea, Zeinab, Othman, Mohamed, Sahma, Ahmed Mahmoud Nafea, Nermin, Ahmed, Doaa Ali Attia, Moataz Maher Emara, Mohamed Mamdouh Bonna, Mohamed Ahmed Gabr, Amany Ismail Tarbay, Ibrahim Abdelmonaem Abdehaleem, Esraa Elsayed Mohamed, Amr Mahmoud Eldeeb, Ahmed Mohamed Abbas, John Ashraf Magdy, Zyad Hassan Hamed, Hany Mostafa Esmaeil Osman, Mostafa Samy Abbas, Oliver, Joannes-Boyau, Nicolas, Barraud, Corentin, Berthelot, Thibault, Camus, Anissa, Dahmi, Mylène, Defaye, Sébastien, Derville, Younes, El-Boustani, Elsa, Deloge, Hélène, Jacob, Simon, Monziols, Fred, Priem, Jean-Jacques, Robin, Vincent, Legros, Therry, Floch, Salvatore, Muccio, Claire, Geneve, Marie Lim Legouge, Stéphanie Tao Mauny, Willy, Mfam, Léa, Pascot, Christophe, Aveline, Mireille, Chartier, Benjamin, Duteurtre, Jean Francois Gautier, Aidren Le Cousin, Pierre, Vautier, Julien, Nadaud, Nathalie, Begel, Claire-Annissa, Chekirine, Vincent, Derlon, Elodie, Grein, Marie-Annick, Lehair, Laurent, Magazzeni, Philippe, Magazzeni, Carsten, Potter, Catherine, Roth, Florence, Voivret, Thomas, Rimmelé, Valérie, Cerro, Stéphanie, Suria, Jamil, Elmawieh, Annabelle, Stoclin, Cédric, Cirenei, Gregoire, Andrieu, Sven, Couloumy, Jeremy, Falcone, Marion, Fajardy, Arsène, Gagneuil, Emeline, Girardet, Agnès, Mazereeuw, Sébastien, Ponsonnard, Pierre-Yves, Egreteau, Mélanie, Bertel, Simon, Bocher, Vanessa, Carn, Lenaïg Le Guen, Guillaume Le Loup, Montaine, Lefevre, Carole, Ichai, Amanita, Diop, Vanessa, Jean-Michel, Sylvie, Devlieger, Juliette, Duthoit, Mohamed El Kadiri, Maxime, Léger, Viviane, Cassisa, Sigismond, Lasocki, Charline, Masson, Emmanuel, Rineau, Pierre, Verrier, Axel, Coquerel, Philippe, Montravers, Enora, Atchade, Charles-Edouard, Rochon, Céline, Delerue, Vidal, Quentin, Vanessa, Latry, Nina, Queixalos, Vincent, Cottenceau, Thierry, Braun, Saad, Bouzoubaa, Basile, Christ, Audrey, Geiger, Joachim, Gomille, Vianney, Kieffer, Simone, Mangeant, Christelle, Prochilo, Christian, Schmitt, Stefan, Skwirba, Hubert, Grand, Frédérique, Boury, Nicolas, Mayeur, Marie, Pasquie, Pierre, Garçon, Vincent, Bruckert, Vincent, Arnould, Mona, Bonciu, Thibault, Chapelle, Luc, Facchino, Florence, Fagot-Gandet, Andrea, Iachim, Elena, Mannu, Olivier, Perus, Rémi, Plattier, Romain, Rozier, Gaël, Pradel, Michel, Boudinaud, Marie-Hélène, Hausermann, My Hue Nguyen, Andersen, Ramorasata, Amélie, Barreau, Anne-Hélène, Boivin, Céline, Ravry, Nicolas, Mottard, Johanne, Beuvelot, Florence Prunier Bossion, Olivier, Desebbe, Alexander, Zarbock, Christian, Dörr, Thilo Caspar von Groote, Mira, Küllmar, Christina, Massoth, Melanie, Meersch, Khaschayar, Saadat-Gilani, Raphael, Weiss, Carola, Wempe, Sebastian, Ziemann, Linda, Grüßer, Ana, Kowark, Pia, Wittig, Timo, Brandenburger, Thomas, Dimski, Niklas, Döhmen, Laura, Huthmann, Daniela, Kaierle, Claude, Pelletier, Manon, Schleß, Andreas, Hohn, Sebastian, Cleophas, Stephanie, Haunhorst, Marina, Jansen, Alexandra, Schmitt, Julia, Soisch, Kilian, Sturm, Peter, Rosenberger, Alexander, Bendig, Lena, Flohr, Helene, Häberle, Pascal, Hofmann, Jonathan, Kuhle, Nora Michaela Leser, Kathrin, Pfister, Stefanie, Prohaska, Franziska, Sennholz, Lena, Stetz, Kathrin, Weber, Sebastian, Stehr, Stephan, Klaus, Marco, Sadlo, Matthias, Boschin, Christian, Sengelhoff, Ulrich Michael Göbel, Jan Gerrit Haaker, Carina-Kristin, Göttker, Matthias, Gründel, Matthias, Heringlake, Romina, Baumgärtel, Astrid, Berggren, Madeleine, Gülzow, Lennart, Muras, Hauke, Paarmann, Serge, Thal, Alexander, Bentley, Dschamil, El-Masri, Anne, Sebastiani, Eleni, Arnaoutoglou, Maria, Ntalouka, Paula, Stratigopoulou, Anastasia, Analytis, Efthymios, Mavrommatis, Petros, Tzimas, Agathi, Karakosta, Danai, Pantazi, Antonia, Dimakopoulou, Katerina, Dimitropoulou, Orestis, Ioannidis, Humam, Jalaawiy, Aeshah, Anwar, Hashim Talib Hashim, Hogir Imad Rasheed Aldawoody, Andrea, Cortegiani, Giulia, Catalisano, Gilia, Ingoglia, Mariachiara, Ippolito, De Rosa, Silvia, Lucia, Cattin, Andrea, Bianchin, Marisa, Barone, Gianluca, Paternoster, Salvatore Lucio Cutuli, Andrea, Russo, Liliana, Sollazzi, Laura, Cascarano, Massimo, Antonelli, Paola, Aceto, Bruno, Romanò, Savino, Spadaro, Vincenzo Francesco Tripodi, Michele, Rossi, Rosamaria, Scappatura, Maria Cristina Vadalà, Diego, Fiume, Maria Teresa Strano, Giulia, Oddo, Clemente, Santorsola, Bilal Abu Hussain, Adnan Raed Alnaser, Anas Hassouneh Ghassan, Khaled, Hasanein, Mohammed, Theab, Seokyung, Shin, Seungho, Jung, Kyuho, Lee, Sung Mee Jung, Jongyoon, Baek, Muhammed, K Elhadi, Issa, Abuzeid, Mohammed, Albaraesi, Sarah, Aldressi, Wegdan, Khalel, Eman, Abdulwahed, Akram Abdulhamid Ashur Abujrad, Amer, Almaghrabi, Muhand Mohammed Alteleeb, Entisar Ahmed Ali Alshareea, Marwa Isa Biala, Abdulqudus, Deeknah, Dooua Ali Gheddim, Reem, Ghmagh, Nawras Salih Ali AbuIkhrays, Marwa, Sinan, Enas, Soula, Sumayyah Ghayth Bahroun, Khawla, Derwish, Aya Munir Mohamed, Eman Sayed Younes, Rayet Al Islam Benjouira, Mohamed, Aliwa, Najwa Abdullah Altashani, Mohammed Omar Alteb, Ahmed, Msherghi, Fatima, Alagelli, Sufyan, Albarouni, Ahmed, Albishti, Sarah, Aljamal, Mohamed, Alsori, Taha, Ekhuja, Suha, Elzwai, Mohammed, Ghula, Tahani, Mustafa, Ahmed, Tuwaib, Haifa, Zriba, Hamza Mahmoud Agilla, Toky Andriamahefa Rafanomezantsoa, Anne Marie Camilleri Podesta, Denise Mifsud Bonnici, Tiziana, Pirotta, Gilberto Adrián Gasca López, Maja Mojsova Mijovska, Tatjana, Davitkovska, Aleksandra, Gavrilovska, Sanja, Lukikj, Marija, Vesova, Dina, Zafirova, Sarah, Amro, Baraa N, F Hajjaj, Muawia, Alkhazendar, Yousuf, Barakat, Sewar Abdulaziz Elejla, Ahmed, Elhissi, Ahmed, Khader, Ali, Salem, Rita de Freitas Regufe, André Filipe de Oliveira Eloy, Lisbete Marisa Neto Cordeiro Perdigão, Evgeny, Grigoriev, Artem, Ivkin, Roman, Kornelyuk, Michael, Yaroustovsky, Marina, Abramyan, Ekaterina, Komardina, Nataliya, Lesteva, Medina, Aybazova, Elmira, Kumykova, Svetlana, Lesina, Gennady, Rybakov, Alexey, Shestov, Abdulnaser Ahmad Ahmad Barmou, Bushra Lotfi Altayeb Ahmed, Aisha Mohammad Eliyas, Yousra, Emadeldin, Alexander, Kaserer, Clara, Castellucci, Julian, Rössler, Samira, Akbas, Andreja Möller Petrun, Irena, Gregorcic, Vesna, Sok, Roman, Čičak, Elizabeth, Bárcena, Antonio, Guisado, Ismail, Wi, Javier Ripollés Melchor, Ángel, Becerra-Bolaños, Sergio, Cabrera-Doreste, Ancor, Domínguez-Arbelo, María Candelaria Delgado-Alonso, Virginia, Muiño-Palomar, Aurelio, Rodríguez-Pérez, Javier Mata Estévez, Maria Begona Covas Munoz, Juan Mulet Matas, Sara Perez Palao, Maria Dolores Mira Quirós, Alisia Cezara Teslev, Mercedes Garcia Alvarez, Marga, Argilaga, María, Campos, Albert, Bainac, Astrid, Batalla, Marta, Giné, Gracia, Herránz, Ignacio, Hinojal, Margarita Logroño Ejea, Noelia de la Rosa Ruiz, María Gastaca Abasolo, Carla Rosario Houhton Acuna, Ibai Iriarte Zaranton, Ana, Mendigurenmurua, María José Munoz Sanz, Erika Olea de la Fuente, María Pilar Pérez Vaquero, Ana Soto Iglesias, Ana Ugarte Mieres, Alaitz Urtiaga Urrestizala, Lourdes, Ferreira, Félix, Lobato, Marta Aguado Sevilla, Andres, Erazo, Pere, Miró, Sergi, Sabaté, Diana, Vernetta, Berta Castellano Paulis, Anabel Adell Perez, Marta Aseguinolaza Pagola, Elena delVal Peciña, Ainhoa Garmendia Odriozola, Amaia Lopetegi Aizpurua, Olatz Pavón Piquer, Pilar Plou Garcia, Paula Ortega Rezola, Antia Osorio Lopez, Isabel de la Calle Gil, Rosalía Navarro Casado, Peter, Adamove, Roser Bayona Domenge, Francho Miguel Blasco Blasco, Adriana Alexandra Rueda Villamizar, Maria Antonia Perelló Llaneras, Jose Ignacio García-Sánchez, Laura Fernandez Téllez, Sara García Zamorano, Natalia Gijón Herreros, Andrea Rodriguez Esteve, Pablo Monedero Rodríguez, Isabel García Trigo, Agustín, Alcaraz, Andrea Lara Jiménez, Iñigo, Rubio, Nuria, García, Raquel, Callejas, Angel Manuel Candela Toha, Eli, Claros, Pilar, Cobeta, Pascual, Crespo, Trini, Dorado, Elena, Elías, Javier, Felices, Diego, Gil, María, Gómez, Nuria, Mané, María, Martín, Adolfo, Martínez, Lucía, Pereira, Alberto Balvis Noemí Samaranch, Ana, Serrano, Carlos, Tiscar, Judith, Villahoz, Patricia Galán Menéndez, Elena, Cardona, Anna, Conesa, Veronica, Estepa, Patricia, Galán, Laura Llinares Espí, Yuri Loaiza Aldeán, Susana, Manrique, Víctor Morales Ariza, Laura Villarino Villa, Elfayadh Saidahmed Mohamed Amed Suliman, Hytham, Hamid, Ahmed Mohamed Ibrahim, Modather Mohamed Saeed, Orhan Sungur Mukadder, Demet, Altun, Nur, Canbolat, Müşerref Beril Dinçer, Tulay Özkan Seyhan, Serap Aktaş Yıldırım, Müzeyyen, İyigün, Davut, Yapıcı, Levent, Özdemir, Aslinur, Sagun, Neval, Boztug, Yesim, Cetintas, Bora, Dinc, Emel, Gündüz, Hakkı, Ünlügenç, Demet Lafli Tunay, Deniz, Karakaya, Burhan, Dost, Ozgur, Komurcu, Özlem Korkmaz Dilmen, Eren Fatma Akcil, Yusuf, Tunali, Gülay, Ok, Eda Tok Alsina, Özge, Hakli, Cengiz, Polat, Namigar, Turgut, Nurcan, Kızılcık, Özge, Köner, Öznur, Şen, Nurdan, Aydin, Burcu, Basaran, Emre Sertac Bingul, Yavuz, Gürkan, Kamil, Darcin, Semra, Ugur, Kemal Tolga Saracoglu, Asli, Demir, Özgök, Aysegül, Eda, Balci, Behic, Girgin, Aygun, Guler, Ümit, Karadeniz, Nihal, Özaslan, Yigit Özay Hülya, Namik, Ozcan, Aysun, Postaci, Mehmet, Sahap, Nevriye, Salman, Özlem, Sağır, Bulent, Atik, Murat, Bicakcioglu, Hafize Fisun Demir, Ugün, Fatih, Nazan, Kocaoglu, Hüseyin Ilksen Toprak, Duygu Demiröz Aslan, Yusuf Ziya Colak, Mustafa Soner Ozcan, Mehmet, Yilmaz, Umran, Karaca, Sevtap Hekimoglu Sahin, Özlem Ersoy Karka, Gizem Demir Şenoğlu, Süheyla Erkoç Karadağ, Neslihan, Alkis, Volkan, Baytaş, Engin, Erturk, Ali, Akdogan, Ahmet, Besir, Dilek, Kutanis, Sedat, Saylan, Ersagun, Tugcugil, Pinar, Ayvat, Berrin, Günaydın, Beyza Mehri Büyükgebiz, Omer Faruk Boran, Feyza, Calisir, Yavuz, Orak, Bahar Kuvaki Balkan, Sibel, Büyükcoban, Erol, Gökel, Sakize Ferim Günenc, Sule, Özbilgin, Suna, Göre, Selcan, Akesen, Seda, Cansabuncu, Natalia, Momot, Anna, Panchenko, Jean-Francois, Pittet, Kristen, Rutledge, Tıp Fakültesi, Weiss, R, Saadat-Gilani, K, Kerschke,L, Wempe,C, Meersch, M, Zarbock, A, Cortegiani, A, and Ippolito, M

Subjects
Epidemiology, urologic and male genital diseases, acute renal failure, Adult Intensive & Critical Care, Anaesthesia, Cohort Studies, surgery, chronic renal failure, Humans, Multicenter Studies as Topic, Prospective Studies, adult intensive & critical care, urogenital system, Incidence, General Medicine, Acute Kidney Injury, female genital diseases and pregnancy complications, critical care, Renal Replacement Therapy, Observational Studies as Topic, epidemiology, Acute Renal Failure, Surgery, adult intensive &amp, Chronic Renal Failure
Abstract

Sağır, Özlem (Balikesir Author), Introduction More than 300 million surgical procedures are performed each year. Acute kidney injury (AKI) is a common complication after major surgery and is associated with adverse short-term and long-term outcomes. However, there is a large variation in the incidence of reported AKI rates. The establishment of an accurate epidemiology of surgery-associated AKI is important for healthcare policy, quality initiatives, clinical trials, as well as for improving guidelines. The objective of the Epidemiology of Surgery-associated Acute Kidney Injury (EPIS-AKI) trial is to prospectively evaluate the epidemiology of AKI after major surgery using the latest Kidney Disease: Improving Global Outcomes (KDIGO) consensus definition of AKI. Methods and analysis EPIS-AKI is an international prospective, observational, multicentre cohort study including 10 000 patients undergoing major surgery who are subsequently admitted to the ICU or a similar high dependency unit. The primary endpoint is the incidence of AKI within 72 hours after surgery according to the KDIGO criteria. Secondary endpoints include use of renal replacement therapy (RRT), mortality during ICU and hospital stay, length of ICU and hospital stay and major adverse kidney events (combined endpoint consisting of persistent renal dysfunction, RRT and mortality) at day 90. Further, we will evaluate preoperative and intraoperative risk factors affecting the incidence of postoperative AKI. In an add-on analysis, we will assess urinary biomarkers for early detection of AKI. Ethics and dissemination EPIS-AKI has been approved by the leading Ethics Committee of the Medical Council North Rhine-Westphalia, of the Westphalian Wilhelms-University Münster and the corresponding Ethics Committee at each participating site. Results will be disseminated widely and published in peer-reviewed journals, presented at conferences and used to design further AKI-related trials. Trial registration number NCT04165369. ©

Published
2021

3. Could sonic delivery of bulk-fill resins improve the bond strength and cure depth in extended size class I cavities?

Author

Lauber-José dos Santos-Almeida Júnior, Leily Macedo Firoozmand, Ana-Ferreira Souza, Marina-Jansen dos Santos, Karla Janilee de Souza Penha, and Rudys-Rodolfo-De Jesus Tavarez

Subjects
Materials science, Bond strength, Research, Resin composite, Composite number, Bulk fill, Indentation hardness, Operative Dentistry and Endodontics, medicine.anatomical_structure, Ultimate tensile strength, Dentin, medicine, Composite material, Restorative dentistry, General Dentistry, UNESCO:CIENCIAS MÉDICAS
Abstract

Background The implementation of restorative procedures that guarantee success and optimize clinical time is the target of investigations in Restorative Dentistry. This study aimed to analyze the influence of sonic insertion of bulk-fill (BF) and conventional (C) resin composites on the microtensile bond-strength (µ-TBS) and cure depth (CD) of large and deep class I restorations. Material and Methods Fifty-six healthy human premolars were selected and occlusal cavities (4 x 4 x 3 mm; factor C = 5) were prepared. TC - Tetric N-Ceram (BF), SF - SonicFill (BF), and Z350 - Filtek Z350 XT (C) composite resins were used to restore the cavities, using sonic (S) and non-sonic (NS) insertion techniques. A group restored with conventional incremental insertion (I) using Z350 XT resin was performed serving as a control. Teeth were prepared for microtensile bond-strength test (µ-TBS). And also, restoration depths of 1 and 4 mm were measured with an automatic microhardness indenter (50 g -15 s) to determine the CD. Results were evaluated using ANOVA, Scheffe, and Games-Howel posthoc test (α = 0.05). Results Types of resins and insertion techniques present statistical differences for µ-TBS and CD (p ≤ 0.001). The µ-TBS was higher respectively for the groups SF > TC > Z350; however, the sonic insertion for SF and Z350 (I) did not present significant differences in µ-TBS. Higher microhardness values were observed on the surface (1mm). At a depth of 4 mm Z350 (I)> SF(S)> SF(NS)> TC(S/NS)> Z350(S/NS) (p< 0.001). Pearson’s Correlation of bond strength and base micro-hardness was significant (p ≤ 0.001), strong, and positive (0.955). Conclusions The influence of sonic insertion is material dependent, influenced only the microhardness of the SonicFill resin and did not interfere with the bond strength and cure depth of other bulk fill and conventional resin composite. Key words:Composite resins, dentin, hardness tests, tensile strength, Bulk-fill resins, sonic insertion.

Published
2020

4. Hoch fluoreszierende Pyridiniumbetaine für die Lichtsammlung

Author

Wallace W. H. Wong, Lars Goerigk, Marina Jansen, Bolong Zhang, Jingjing Xu, and Chris Ritchie

Subjects
chemistry.chemical_compound, Materials science, Betaine, Fluorophore, chemistry, Stereochemistry, 02 engineering and technology, General Medicine, 010402 general chemistry, 021001 nanoscience & nanotechnology, 0210 nano-technology, 01 natural sciences, 0104 chemical sciences
Published
2017

5. Highly Fluorescent Pyridinium Betaines for Light Harvesting

Author

Lars Goerigk, Jingjing Xu, Marina Jansen, Bolong Zhang, Wallace W. H. Wong, and Chris Ritchie

Subjects
Chemistry, Energy transfer, Energy migration, 02 engineering and technology, General Chemistry, 010402 general chemistry, 021001 nanoscience & nanotechnology, Photochemistry, 7. Clean energy, 01 natural sciences, Fluorescence, Catalysis, 0104 chemical sciences, Characterization (materials science), chemistry.chemical_compound, Microscopy, Solvent polarity, Pyridinium, 0210 nano-technology, Luminescence
Abstract

We report the findings of our experimental and theoretical investigations into the properties of pyridinium enolates and their potential utility in light-harvesting applications, such as in luminescent solar concentrators (LSCs). We present the synthesis, structures, photophysical characterization, and wavefunction-based quantum-chemical studies of five cyclobetaines. The performance of an LSC device incorporating one of these cyclobetaines is shown to be comparable to state-of-the-art devices.

Published
2017

7. Could sonic delivery of bulk-fill resins improve the bond strength and cure depth in extended size class I cavities?

Author

Penha KS, Souza AF, Dos Santos MJ, Júnior LDS, Tavarez RJ, and Firoozmand LM

Abstract

Background: The implementation of restorative procedures that guarantee success and optimize clinical time is the target of investigations in Restorative Dentistry. This study aimed to analyze the influence of sonic insertion of bulk-fill (BF) and conventional (C) resin composites on the microtensile bond-strength (µ-TBS) and cure depth (CD) of large and deep class I restorations., Material and Methods: Fifty-six healthy human premolars were selected and occlusal cavities (4 x 4 x 3 mm; factor C = 5) were prepared. TC - Tetric N-Ceram (BF), SF - SonicFill (BF), and Z350 - Filtek Z350 XT (C) composite resins were used to restore the cavities, using sonic (S) and non-sonic (NS) insertion techniques. A group restored with conventional incremental insertion (I) using Z350 XT resin was performed serving as a control. Teeth were prepared for microtensile bond-strength test (µ-TBS). And also, restoration depths of 1 and 4 mm were measured with an automatic microhardness indenter (50 g -15 s) to determine the CD. Results were evaluated using ANOVA, Scheffe, and Games-Howel posthoc test (α = 0.05)., Results: Types of resins and insertion techniques present statistical differences for µ-TBS and CD ( p ≤ 0.001). The µ-TBS was higher respectively for the groups SF > TC > Z350; however, the sonic insertion for SF and Z350 (I) did not present significant differences in µ-TBS. Higher microhardness values were observed on the surface (1mm). At a depth of 4 mm Z350 (I)> SF(S)> SF(NS)> TC(S/NS)> Z350(S/NS) ( p < 0.001). Pearson's Correlation of bond strength and base micro-hardness was significant ( p ≤ 0.001), strong, and positive (0.955)., Conclusions: The influence of sonic insertion is material dependent, influenced only the microhardness of the SonicFill resin and did not interfere with the bond strength and cure depth of other bulk fill and conventional resin composite. Key words: Composite resins, dentin, hardness tests, tensile strength, Bulk-fill resins, sonic insertion., Competing Interests: Conflicts of interest No potential conflict of interest relevant to this article was reported., (Copyright: © 2020 Medicina Oral S.L.)

Published
2020
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