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    Antimicrobial effect of ozonated water, sodium hypochlorite and chlorhexidine gluconate in primary molar root canals
    (Dental Investigations Society, 2014) Goztas Z.; Onat H.; Tosun G.; Sener Y.; Hadimli H.H.
    Objective: The aim was to determine the antimicrobial effect of ozonated water, ozonated water with ultrasonication, sodium hypochloride and chlorhexidine (CHX) in human primary root canals contaminated by Enterococcus faecalis (E. faecalis). Materials and Methods: Fifty-eight extracted human primary molar teeth were used. Crowns were cut off using a diamond saw under water-cooling. One hundred roots were obtained and mechanically prepared. The roots were then sterilized by autoclaving in water for 15min at 121°C. All samples were contaminated with E. faecalis for 24h and the root canals were randomly divided into five groups (n = 20). Group I: 25mg/L of Ozonated water (O3aq), Group II: 25mg/L of O3aq with ultrasonication, Group III: 2.5% Sodium hypochloride (NaOCl), Group IV: 2% CHX and Group V: Positive control. The canal of each specimen was irrigated for 4min and positive control was untreated. All root canals were agitated with sterile saline solution. The saline solution was collected from canals with sterile paper points. For each specimen, the paper points were transposed to eppendorf vials containing 2 ml of brain heart infusion. According to bacterial proliferation, the mean values of optical density were achieved by ELI?SA (Biotek EL ×800, Absorbance Microplate Reader, ABD) and the data were analyzed. Results: NaOCI, CHX and two types of O3aq were found statistically different than positive control group. NaOCI irrigation was found significantly most effective. Conclusions: NaOCl, CHX and O3aq applications provide antibacterial effect in vitro conditions in primary root canals. © 2014 Dental Investigations Society.
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    In Vivo and In Vitro performance of Conventional Methods, DIAGNOdent, and an Electronic Caries Monitor for Occlusal Caries Detection in Primary Teeth
    (2015) Kucukyilmaz E.; Sener Y.; Botsali M.S.
    PURPOSE: The purpose of this study was to evaluate and compare the clinical and laboratory performances of an electronic caries monitor (ECM-IV) and the DIAGNOdent device with that of conventional methods, including visual (VE) and radiographic examinations (RE), for the detection of occlusal caries in primary teeth.METHODS: Three different observers examined 200 primary molars before extraction (in vivo), immediately after extraction (in vitro 1), and 14 days after extraction (in vitro 2). Examinations were performed visually, radiographically using the DIAGNOdent and ECM-IV devices.RESULTS: Among all the methods, the ECM-IV yielded the highest sensitivity and Az (Area under the ROC curve) values at the enamel (D1) threshold and visual examination for dentin (D3) threshold. For reproducibility, the ECM-IV presented the highest Kappa values at the D1 threshold, and the DIAGNOdent presented the highest Kappa values at the D3 threshold. Both devices presented high intraclass correlation coefficient values, although DIAGNOdent showed higher values than ECM-IV in all stages of the study and for all observers.CONCLUSION: Considering the importance of early identification of caries in primary teeth, the use of the ECM and DIAGNOdent devices, together with conventional examination methods, will increase the rate of identification of occlusal caries during routine clinic visits.
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    Reattachment of fractured maxillary incisors using fiber-reinforced post: Two case reports
    (2012) Tosun G.; Yildiz E.; Elbay M.; Sener Y.
    Objective: The reattachment of the crown fragment to a fractured tooth is a conservative treatment that should be considered for young patients with crown-root fractures to the maxillary incisors if the subgingival fracture can be exposed to provide isolation. Gingivectomy, the surgical or orthodontic extrusion of the apical fragment is necessary to expose the subgingival fracture. This report demonstrates the treatment of two cases with the combination of gingivectomy or resective osseous surgery, reattachment of coronal fracture and fiber-reinforced polymer posts and shows three years long term follow-up. Subgingivally extended crown-root fractures of maxillary incisors were restored with a combination of chemically cured resin material, light cured resin material and polyethylene fiber. Conclusion: Within the limitations of this case report, it was demonstrated that reattachment of tooth fragments can successfully benefit periodontal health, aesthetic needs and normal functioning after three years.