Blar i forfatter "Mouhat, Mathieu"

Viser treff 1-7 av 7

    • Effect of cements on fracture resistance of monolithic zirconia crowns 

      Nakamura, Keisuke; Mouhat, Mathieu; Nergård, John Magnus; Lægreid, Solveig Jenssen; Kanno, Taro; Milleding, Percy; Ørtengren, Ulf Thore (Journal article; Tidsskriftartikkel; Peer reviewed, 2016-01-26)
      Objectives - The present study investigated the effect of cements on fracture resistance of monolithic zirconia crowns in relation to their compressive strength.<p> <p>Materials and methods - Four different cements were tested: zinc phosphate cement (ZPC), glass-ionomer cement (GIC), self-adhesive resin-based cement (SRC) and resin-based cement (RC). RC was used in both dual cure mode (RC-D) and ...

    • Heat Development in the Pulp Chamber During Curing Process of Resin-Based Composite Using Multi-Wave LED Light Curing Unit 

      Nilsen, Bo Wold; Mouhat, Mathieu; Haukland, Torbjørn; Örtengren, Ulf Tore; Mercer, James B (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-07-08)
      <i>Objective</i>: The study aimed to investigate factors contributing to heat development during light curing of a flowable bulk-fill resin-based composite (SDR<sup>TM</sup>, Lot # 602000876, Dentsply Sirona, Konstanz, Germany) (RBC).<p><p> <i>Materials and Methods</i>: Temperatures were measured with calibrated thermocouples. A multi-wave light-emitting diode (LED) light curing unit (LCU) was ...

    • How does indirect air-cooling influence pulp chamber temperature in different volume teeth and absence/presence of resin-based composite during light curing? 

      Mouhat, Mathieu; Stangvaltaite-Mouhat, Lina; Finnäs, Emil; Andersen, Amani; Lirhus Evertsen, Anneli; Nilsen, Bo Wold (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-11-24)
      <p><b> Background</b> Light-curing of materials during restorative dental procedures poses a risk for pulp tissue overheating. Therefore, the aim of this study was to investigate the effect of indirect air-cooling on pulp chamber temperatures during light-curing of varying volume teeth and absence/presence of resin-based composite (RBC) at different exposure time. <p><b> Methods</b> The ...

    • In vitro Candida albicans biofilm formation on different titanium surface topographies 

      Mouhat, Mathieu; Moorehead, Robert; Murdoch, Craig (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-10-09)
      <i>Objectives</i> - To investigate if differences in titanium implant surface topography influence <i>Candida albicans</i> biofilm formation.<p> <p><i>Materials and Methods</i> - Titanium discs were prepared and characterized using a profilometer: Group A (<i>R</i><sub>a</sub> 0.15 µm, smooth), Group B (<i>R</i> <sub>a</sub> 0.64 µm, minimally rough) and Group C (<i>R</i> <sub>a</sub> 1.3 µm, ...

    • Light-curing units used in dentistry: Effect of their characteristics on temperature development in teeth 

      Mouhat, Mathieu; Stangvaltaite-Mouhat, Lina; Mercer, James; Nilsen, Bo Wold; Örtengren, Ulf (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-09-25)
      This study aimed to investigate pulp chamber and surface temperature development using different LED light curing units (LCUs). Eight brands of LED-LCUs were tested in a laboratory bench model. The pulp chamber and surface temperature were recorded with a type T thermocouple and infrared cameras, respectively. The highest pulp chamber and surface temperature increase was 6.1±0.3°C and 20.1±1.7°C, ...

    • Light-curing units used in dentistry: factors associated with heat development – potential risk for patients 

      Mouhat, Mathieu; Mercer, James; Stangvaltaite, Lina; Ørtengren, Ulf Thore (Journal article; Tidsskriftartikkel; Peer reviewed, 2016-10-01)
      Objectives:<br>To investigate how heat development in the pulp chamber and coronal surface of natural teeth with and without cusps subjected to irradiance using light-emitting diode (LED)–light-curing units (LCUs) is associated with (i) irradiance, (ii) time, (iii) distance, and (iv) radiant exposure.<br> Materials and methods:<br>Three different LED-LCUs were used. Their irradiance was measured ...

    • Quantification of porosity in composite resins delivered by injectable syringes using X-ray microtomography 

      Nilsen, Bo Wold; Mouhat, Mathieu; Jokstad, Asbjørn (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-07-06)
      <i>Objective</i>: To assess whether composite polymer resin delivered in compules include pores and the possible effect on the amount of porosity in dental restorations.<p> <p><i>Method and materials</i>: Original compules containing unpolymerised composite polymer resin (CPR) were scanned in a micro-CT. Four products were examined, which comprised universal composites (Herculite XRV Ultra, Ceram.X ...