Ozone has been proposed as an alternative antiseptic agent in dentistry based on reports of its antimicrobial effects both gaseous and aqueous forms. This study investigated whether ozone (4 x 10(6) microg m(-3)) (1.25-20 ml(-1)) exert any cytotoxic human oral epithelial (BHY) cells gingival fibroblast (HGF-1) compared with established antiseptics [chlorhexidine digluconate (CHX) 2%, 0.2%; sodium hypochlorite (NaOCl) 5.25%, 2.25%; hydrogen peroxide (H(2)O(2)) 3%], over a time 1 min, the...

To assess the antimicrobial efficacy of aqueous (1.25-20 microg mL(-1)) and gaseous ozone (1-53 g m(-3)) as an alternative antiseptic against endodontic pathogens in suspension a biofilm model.Enterococcus faecalis, Candida albicans, Peptostreptococcus micros Pseudomonas aeruginosa were grown planctonic culture or mono-species biofilms root canals for 3 weeks. Cultures exposed to ozone, sodium hypochlorite (NaOCl; 5.25%, 2.25%), chlorhexidine digluconate (CHX; 2%), hydrogen peroxide...

Abstract Objectives To assess root canal localization accuracy using a dynamic approach, surgical guides and freehand technique in vitro. Materials methods Access cavities were prepared for 4 different 3D printed tooth types by operators ( n = 144). Deviations from the planning angle bur positioning compared operating time as well substance loss evaluated (Kruskal-Wallis Test, ANOVA). Operating method, type, operator effects analyzed (partial eta-squared statistic). Results Angle deviation...

Pulpotomy is the accepted therapy for management of cariously exposed pulps in symptom-free primary molars; however, evidence lacking about most appropriate technique. The aim this study was to compare relative effectiveness Er:YAG laser, calcium hydroxide, and ferric sulfate techniques with that dilute formocresol retaining such molars symptom-free. Two hundred 107 healthy children were included randomly allocated one techniques. treated teeth blindly re-evaluated after 6, 12, 18, 24...

Huth KC, Quirling M, Lenzke S, Paschos E, Kamereck K, Brand Hickel R, Ilie N. Effectiveness of ozone against periodontal pathogenic microorganisms. Eur J Oral Sci 2011; 119: 204–210. ©2011 Ozone has been proposed as an adjunct antiseptic in periodontitis therapy. The aim this study was to investigate the antimicrobial effectiveness gaseous/aqueous ozone, comparison with that established chlorhexidine digluconate (CHX), Aggregatibacter actinomycetemcomitans, Porphyromonas gingivalis,...

Modern light-cured, resin-based composites are offered in a wide range of shades and translucencies. This large variation, created by varying the amount type pigmentation opacifiers, is essential to enable an esthetic restoration each patient situation, but may affect light transmission deeper layers during curing. We quantified optical parameters their real-time variation curing for 13-shade composite palette identical chemical composition microstructure. Incident irradiance through 2 mm...

Abstract: Objectives: This prospective clinical study investigated the efficacy of adjunctive antibiotic therapy (doxycycline) and patient’s risk factors during initial healing autogenous canine tooth transplantations. Methods: Sixty-seven patients (ranging from 11 to 37 years age) treated with transplantations were allocated three parallel groups based on tooth’s intraoperative extraoral storage time (EST 0–3, 4–6, 7–15 min) receiving different regimens: (1) no antibiotics; (2) intravenous...

Abstract Background Implant therapy in the advanced atrophic jaw remains challenging oral and maxillofacial surgery. Hence, a plethora of different augmentation procedures to increase bone volume maxilla mandible have been published. Horizontal vascular-stalked split osteotomy (HVSO) represents safe effective approach for three-dimensional since it combines maximum vascularization through lingual or palatinal periosteal stalking with reduced grafting morbidity. Objective To analyze efficacy...

Abstract TNF is a major mediator of inflammation, immunity, and apoptosis. Pre-exposure to reduces sensitivity restimulation, phenomenon known as tolerance, considered protective in sepsis, but also paradigm for immunoparalysis. Earlier experiments TNF-tolerant cells display inhibition NF-κB-dependent IL-8 gene expression at the transcriptional level with potential involvement C/EBPβ. In this study, we have shown that κB motive was sufficient mediate under tolerance conditions monocytic...

Ozone has been proposed as an alternative oral antiseptic in dentistry, due to its antimicrobial power reported for gaseous and aqueous forms, the latter showing a high biocompatibility with mammalian cells. New therapeutic strategies treatment of periodontal disease apical periodontitis should consider not only antibacterial effects, but also their influence on host immune response. Therefore, our aim was investigate effect ozone NF-κB system, paradigm inflammation-associated...

Aesthetic alternatives to stainless‐steel crowns for restoring primary molars attain growing interest. We studied the mechanical properties of prefabricated zirconia and conventional crowns. Three brands were compared with computer‐aided design/computer‐aided manufacturing ( CAD / CAM ) crowns, preveneered regarding: (i) fracture load under each three conditions [no pretreatment, artificial aging in saliva 12 wk, after chewing simulation/thermocycling (1.68 × 10 6 cycles/5–55°C)]; (ii)...

The coronavirus disease 19 (COVID-19) has challenged dental health professions. This study analyzes its impact on urgent care in the Department of Conservative Dentistry and Periodontology, University Hospital Munich Bavaria, Germany. Patient numbers without with positive/suspected COVID-19 infection, their reasons for attendance, treatments were retrospectively recorded (February-July 2020) linked to local infection numbers, control measures, numbers/reasons closures private practices...