Results 121 to 130 of about 20,542 (266)

Evaluation of the Adequate Radiopacity of Cavity Lining/Base and Core Build‐Up Light Cured Composite Resins

open access: yesAustralian Dental Journal, EarlyView.
ABSTRACT Background This study aimed to compare the radiopacity of composite resins (CR) used as lining, base, and core‐build up materials with enamel and dentine and evaluate their compliance with ISO 4049. Methods Specimens of 1, 2, and 3 mm thicknesses; (n = 6) were fabricated from 13 low‐viscosity and 10 regular‐viscosity CRs.
Carolina Alves Andrade   +5 more
wiley   +1 more source

Changes in the Location of the Second Mesiobuccal Canal Orifice After Canal Preparation in Maxillary First Molars

open access: yesAustralian Endodontic Journal, EarlyView.
ABSTRACT This study evaluated angular and linear positional changes of the second mesiobuccal (MB2) canal orifice in maxillary first molars and proposed a guideline for its localization. Twenty‐eight extracted maxillary first molars with four canals were analysed. After access cavity preparation, all canals except MB2 were instrumented. The initial and
Hyoung‐Hoon Jo   +4 more
wiley   +1 more source

Honokiol regulates Acute respiratory distress syndrome (ARDS)‐associated pulmonary fibrosis via the miR‐19a‐3p/POSTN axis

open access: yesBritish Journal of Pharmacology, EarlyView.
Abstract Background and Purpose Acute respiratory distress syndrome (ARDS) and subsequent pulmonary fibrosis are associated with high mortality and limited treatment options. Periostin (POSTN) is a profibrotic mediator predicted to be regulated by microRNA‐19a‐3p (miR‐19a‐3p), but the relevance of this axis in ARDS‐associated pulmonary fibrosis remains
Weilun Liu   +14 more
wiley   +1 more source

A Randomised Controlled Trial Comparing a One‐Piece Zirconia Tissue‐Level Implant and Two‐Piece Titanium Bone‐Level Implant for Maxillary Single Tooth Replacement—3 year Results

open access: yesClinical Oral Implants Research, EarlyView.
ABSTRACT Objectives This RCT evaluated and compared the clinical performance of zirconia and titanium dental implants placed in the maxillary premolar region. Outcomes were assessed 3 years after prosthetic loading and included marginal bone level (MBL) changes, clinical parameters, aesthetic outcomes, and patient related outcome measures (PROMs ...
J. H. W. de Beus   +8 more
wiley   +1 more source

The effect of thermocycling on the degree of conversion and mechanical properties of a microhybrid dental resin composite. [PDF]

open access: yesRestor Dent Endod, 2018
Ghavami-Lahiji M   +5 more
europepmc   +1 more source

Effect of Implant Design on Fracture Resistance, Mode, and Crystal Structure of One‐ and Two‐Piece Zirconia Implants With Ceramic or Titanium Abutment Screws: An In Vitro Study

open access: yesClinical Oral Implants Research, EarlyView.
ABSTRACT Objectives To evaluate the fracture resistance, fracture modes, and crystalline phase changes of zirconia one‐piece implants (OPI) and bone‐level (BLTPI) or tissue‐level, two‐piece implants (TLTPI), with ceramic (C) or titanium (T) abutment screws after dynamic preloading in a moist environment.
Abdulaziz Gul   +5 more
wiley   +1 more source

Block Versus Particulate Deproteinized Bovine Bone Mineral for Guided Bone Regeneration of Peri‐Implant Dehiscence Defects: A 5‐Year Randomized Controlled Trial

open access: yesClinical Oral Implants Research, EarlyView.
ABSTRACT To assess the 5‐year dimensional stability of buccal hard‐tissues following guided bone regeneration (GBR) of peri‐implant dehiscence defects using deproteinized bovine bone mineral (DBBM) blocks or particulate. Methods Patients requiring single‐tooth implants and presenting a buccal dehiscence defect (≥ 3 mm) at implant placement were ...
Anina N. Zuercher   +5 more
wiley   +1 more source

Effect of Membrane Perforations With and Without Collagen Membrane Coverage in Vertical Ridge Augmentation: An Experimental Pilot In Vivo Study

open access: yesClinical Oral Implants Research, EarlyView.
ABSTRACT Objectives Given the proposed bioactive role of collagen membranes, we aimed to evaluate whether the perforation size of titanium‐reinforced dPTFE membranes, with or without an additional collagen membrane, influences outcomes of vertical alveolar ridge augmentation (VARA).
Istvan A. Urban   +7 more
wiley   +1 more source

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