The purpose of this study was to compare the cytotoxic effects and mineralization activity three calcium silicate-based root canal sealers those a conventional resin-based sealer. Experiments were performed using human dental pulp stem cells grown in monolayer culture. tested EndoSequence BC Sealer (Brasseler), BioRoot RCS (Septodont), Endoseal MTA (Maruchi), AH Plus (Dentsply DeTrey). Experimental disks 6 mm diameter 3 height made stored 100% humidity chamber at 37 °C for 72 h achieve...

Abstract Background Understanding when and why endodontic treatments fail could help clinicians make prognoses thus improve treatment outcomes. This study was aimed to assess potential predictors of early failure. We explored factors contributing the failure initial root canal were explored, with a specific emphasis on evaluating influence time elapsed since treatment. Methods retrospective cohort enrolled 1262 patients who sought at our department 175 included for analysis. Potential causes...

The purpose of this study was to compare the penetration ability calcium silicate root canal sealers and conventional resin-based sealer using confocal laser scanning microscopy (CLSM). A total 60 recently extracted single-rooted human premolars were used in study. canals prepared a size 40/0.06 taper with ProFile rotary instruments irrigated NaOCl EDTA. After drying all canals, specimens randomly divided into three experimental groups (n = 20): Group 1, gutta-percha (GP)/AH Plus continuous...

In this study, we assessed the biocompatibility and bioactivity of various pulp capping materials—ProRoot MTA (Dentsply Tulsa Dental Specialties), Biodentine (Septodont), TheraCal LC (Bisco), Dycal Caulk)—on human dental stem cells (hDPSCs). Experimental disks (diameter, 7 mm; height, 4 mm) were stored in a humified incubator at 37 °C for 48 h. Then, materials tested cytotoxic effects by methyl-thiazoldiphenyl-tetrazolium scratch wound healing assays, mineralization potential Alizarin red S...

We compared calcium silicate-based pulp capping materials to conventional hydroxide in terms of their biological properties and potential effects on odontogenic differentiation human dental stem cells (hDPSCs). cultured hDPSCs disks (7-mm diameter, 4-mm high) ProRoot MTA (Dentsply Tulsa Dental Specialties), Biodentine (Septodont), TheraCal LC (Bisco), or Dycal Specialties). Cell viability was assessed with cell counting (CCK) scanning electron microscopy (SEM). Odontogenic activity by...

The purpose of this study was to analyze the characteristics cracked teeth and evaluate pulp status according periodontal probing depth (PPD).A total 182 were included. location type teeth, age gender patients, restoration type, status, PPD, radiographic findings analyzed.Mandibular second molars (25.3%) most frequently involved followed by mandibular first (22.5%), maxillary (22.0%), (17.6%). patient 50-59 years. Cracks occurred mainly in nonbonded restorations, such as gold (26.9%),...

The purpose of this study was to analyze various characteristics and classification C-shaped root canals evaluate the causes endodontic failure by examining resected surface with an microscope a scanning electron (SEM). Forty-two teeth were included in had undergone intentional replantation surgery. Before surgery, periapical radiography cone-beam computed tomography taken. canal configuration analyzed classified according Melton's at coronal apical level. After injection 1 : 100,000...

This study evaluated the presence of residual root canal filling material after retreatment using micro-computed tomography (micro-CT).Extracted human teeth (single- and double-rooted, n = 21/each; C-shaped, 15) were prepared with ProFile randomly assigned to three subgroups for obturation gutta-percha different sealers (EndoSeal MTA, EndoSequence BC sealer, AH Plus). After 10 days, was removed canals instrumented one size up from previous master apical file size. The scanned micro-CT before...

Premixed calcium silicate-based cements (CSCs) and fast-set CSCs were developed for the convenience of retrograde filling during endodontic microsurgery. The aim this study was to analyze biocompatible properties mineralization potential premixed CSCs, such as Endocem MTA (EM Premixed) EndoSequence BC RRM putty (EndoSequence), RetroMTA on human bone marrow-derived mesenchymal stem cells (BMSCs) compared ProRoot MTA. Using CCK-8, a significantly higher proliferation BMSCs occurred only in EM...

Summary The purpose of this study was to evaluate the relationships between prevalence depression and dental pain using a well characterised, nationally representative, population‐based study. This analysed data from 2012 Korea National Health Nutrition Examination Survey ( n = 4886). Oral health status assessed oral questionnaire, examination performed by trained dentists. Depression defined as participant having been diagnosed during previous year. Logistic regression applied estimate...

Objective . The aim of this study was to evaluate the temperature change at various sites within composite and on pulpal side dentin during polymerization two increments. Materials Methods Class I cavities prepared in third molars were restored increments (<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" id="M1"><mml:mi>n</mml:mi><mml:mo>=</mml:mo><mml:mi> </mml:mi><mml:mn>5</mml:mn></mml:math>). Temperatures measured for 110 s using eight thermocouples: bottom center cavity (BC),...

Summary The purpose of this study was to analyze the sealing ability different root canal filling materials over a 6‐week period using glucose penetration model. Forty‐six recently extracted human premolars were used in study. canals enlarged 40/0.06. Prepared randomly assigned into four groups (n = 10) as follows: Group 1, Gutta‐Percha (GP)/AH Plus with cold lateral compaction; 2, GP/AH continuous wave 3, RealSeal SE obturation system; and 4, OrthoMTA. remaining specimens positive negative...

This study aimed to validate Lee’s age estimation method and assess the 18-year threshold in Korean Japanese populations. We evaluated maxillary mandibular second (M2) third molars (M3) 2657 orthopantomograms of populations aged 15–23 years (19.47±2.62 for Koreans, 19.31±2.60 Japanese), using Demirjian’s criteria. Dental was estimated, correlations between chronological dental ages were analyzed. Classification performance calculated based on threshold. The relationship developmental stage...

Sin-Young Kima, Jin-Soo Ahnb, Young-Ah Yic, Yoon Leed, Ji-Yun Hwange & Deog-Gyu Seof*a 1Department of Conservative Dentistry, Seoul St. Mary's Dental Hospital, College Medicine, The Catholic University Korea, Seoul, Koreab 2Department Biomaterials Science, School National University, Koreac 3Department Inje Paik Koread 4Department Wonju Severance Christian Yonsei Wonju, Koreae 5Nutrition Education Major, Graduate Education, Sangmyung Koreaf 6Department Dentistry and Research Institute, Korea

The ideal treatment option for immature necrotic permanent teeth is regeneration of the pulp-dentin complex. Mineral trioxide aggregate (MTA), conventional cement used regenerative endodontic procedures, induces hard tissue repair. Various hydraulic calcium silicate cements (HCSCs) and enamel matrix derivative (EMD) also promote osteoblast proliferation. purpose present study was to determine osteogenic dentinogenic potential commercially distributed MTA HCSCs when applied in combination...

The characteristics of retrograde filling material are important factors that can affect the long-term success apical microsurgery. Various calcium silicate-based cements (CSC) were introduced to overcome drawbacks mineral trioxide aggregate (MTA), while Emdogain is known be effective in regeneration periodontal tissues. aim this study evaluate biocompatibility and osteogenic potential various CSCs combined with on human bone marrow-derived mesenchymal stem cells. Experimental groups...

Background: We evaluated the effects of ultrasonic activation on root canal filling quality single-cone (SC) obturation technique with calcium silicate sealers and gutta percha cones. Methods: Thirty-six human single-rooted premolars were obturated sealer. For continuous wave (CW) group (n = 12), AH Plus a was used. The SC 12) received EndoSequence BC sealer technique. SCU (SC addition activation) same treatment. Micro-computed tomography used to scan teeth, void volume within at apical,...

The aim of this study was to evaluate the cytotoxicity and mineralization potential four calcium silicate-based cements on human gingiva-derived stem cells (GDSCs). materials evaluated in present were ProRoot MTA (Dentsply Tulsa Dental Specialties), Biodentine (Septodont), Endocem Zr (Maruchi), RetroMTA (BioMTA). Experimental disks 6 mm diameter 3 height produced placed a 100% humidified atmosphere for 48 h set. We cytotoxic effects using methyl-thiazoldiphenyl-tetrazolium (MTT) live/dead...