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GÜNEŞER, MEHMET BURAK

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MEHMET BURAK
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GÜNEŞER
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Now showing 1 - 7 of 7
  • PublicationMetadata only
    Effects of fruit vinegars on root dentin microhardness and roughness.
    (2019-01-01) AKBULUT, MB; Guneser, MEHMET BURAK; ELDENIZ, AU; GÜNEŞER, MEHMET BURAK
  • PublicationOpen Access
    Tooth discoloration effects of calcium silicate based barrier materials used in revascularization and treatment with internal bleaching
    (2017-12-01T00:00:00Z) Akbulut, Makbule Bilge; Terlemez, Arslan; Akman, Melek; Buyukerkmen, Begum; Guneser, Mehmet Burak; Eldeniz, Ayce Unverdi; GÜNEŞER, MEHMET BURAK
    Background/purpose: Usage of barrier materials is an important step in revascularization procedure. One of the undesired properties of these barrier materials is to cause coronal tooth discoloration. The aim of this in vitro study was to evaluate the tooth discoloration induced by ProRoot MTA (PMTA), Biodentine, and MM-MTA, as well as the efficacy of internal bleaching on this discoloration.
  • PublicationOpen Access
    Do the intracanal medicaments affect the marginal adaptation of calcium silicate-based materials to dentin?
    (2019-06-01T00:00:00Z) Dincer, ASİYE NUR; Ozturk, TY; Guneser, MEHMET BURAK; Taschieri, S; Maddalone, M; Venino, PM; Del, Fabbro; GÜNEŞER, MEHMET BURAK; DİNÇER, ASİYE NUR
  • PublicationOpen Access
    Apical extrusion of debris during root canal preparation using a novel nickel-titanium file system: WaveOne gold.
    (2017-09-01) Dincer, ASİYE NUR; GUNESER, MEHMET BURAK; ARSLAN, D; DİNÇER, ASİYE NUR; GÜNEŞER, MEHMET BURAK
  • PublicationOpen Access
    The effect of gelatinase production of <i>Enterococcus faecalis</i> on adhesion to dentin after irrigation with various endodontic irrigants.
    (2016-11-15) Guneser, MEHMET BURAK; ELDENIZ, AU; GÜNEŞER, MEHMET BURAK
    Objectives: The aim of this study was to evaluate whether the gelatinase production ability of Enterococcus faecalis provides any advantage on adhesion of this bacterium to dentin treated with various irrigants and their combinations. Materials and methods: Standardized dentin discs were randomly divided into five groups (n = 20): group 1: 2.5% sodium hypochlorite (NaOCl), group 2: 2% chlorhexidine (CHX), group 3: NaOCl + Saline + CHX, group 4: NaOCl + EDTA + NaOCl, group 5: QMix. After incubation of dentin discs with irrigants, each group was divided into two subgroups (n = 10) according to the bacterial strains used; a gelatinase-producing and a gelatinase-deficient strain of E. faecalis. After incubation of the discs with the bacterial suspensions aerobically for 48 h, XTT assay was conducted for bacterial adherence evaluation. Data were statistically analyzed by ANOVA and Tukey's HSD tests (p = .05). Results: Gelatinase-producing E. faecalis adhered to dentin was significantly more than gelatinase-deficient E. faecalis in all test groups (p < .05). Adherence to CHX-treated dentin was lower than to the surfaces treated with other irrigants, alone or in combination (p < .05). These differences were significant except for comparisons with QMix for gelatinase-producing bacteria (p < .05). Conclusions: Gelatinase production of E. faecalis may be an important factor for bacterial adhesion. The addition of CHX to the irrigation regimen resulted in fewer adhered bacteria to dentin. QMix was not as effective as CHX in terms of bacterial adhesion prevention.
  • PublicationOpen Access
    Compressive strength, surface roughness, and surface microhardness of principle tricalcium silicate-based endodontic cements after universal adhesive application
    (2022-03-01T00:00:00Z) Olcay, K; Guneser, MEHMET BURAK; Dincer, A N; Uyan, H M; GÜNEŞER, MEHMET BURAK
    Aims and background: It was aimed to evaluate compressive strength (CS), surface roughness, and microhardness of mineral trioxide aggregate (ProRoot MTA) and Biodentine (BD) after adhesive application. Materials and methods: Tests was carried out according to international ISO standard. ProRoot MTA and BD were prepared in Teflon molds according to manufacturer's instructions: n = 210 for CS; n = 210 for microhardness. Samples were incubated for 7 days at 37°C in 100% humidity. Surfaces were smoothed with up to 2000 grits of silicon-carbide sandpaper on abrasive device at 150 rpm, randomly divided into seven groups (n = 15). Clearfil Universal Bond, All Bond Universal, and Single Bond Universal (SBU) were applied in both total-etch and self-etch (SE) modes. Adhesives were applied according to manufacturers' recommendations (no adhesive used in control). CS was performed at speed of 1 mm/min, microhardness at 100 gr for 15 s. The surface roughness of the samples was analyzed with atomic force microscopy. Two-way analysis of variance and post hoc Tukey tests were used for the evaluation of the data. Results: Man CS and microhardness values between ProRoot MTA and BD were as follows: 24.9 N, 72.6 HV; 59.8 N, 59.0 HV, respectively. In CS, BD was higher than ProRoot MTA (P < 0.05). In other comparisons except for SBU SE group (P < 0.05), BD and ProRoot MTA showed similar results (P > 0.05). However, ProRoot MTA was found higher than BD regarding microhardness (P < 0.05). As a result of the adhesive application in both BD and ProRoot MTA groups, a decrease in surface roughness was observed compared to the control group. Conclusion: BD exhibited better results than ProRoot MTA regarding CS. However, ProRoot MTA was found to be more successful than BD in terms of microhardness. BD and ProRoot MTA showed similar physical properties in terms of surface roughness. To improve regenerative procedures, besides the selection of bioceramic cements, the interaction between cements and materials applied during coronal restoration should be considered.
  • PublicationOpen Access
    Antibacterial effect of chlorhexidine-cetrimide combination, Salvia officinalis plant extract and octenidine in comparison with conventional endodontic irrigants
    (2016-10-01) Guneser, MEHMET BURAK; Akbulut, Makbule Bilge; Eldeniz, Ayce Unverdi; GÜNEŞER, MEHMET BURAK
    The aim of the present study was to compare the antimicrobial effect of sodium hypochlorite (NaOCl), 2% chlorhexidine (CHX), a CHX/cetrimide solution (CHX+CTR), octenidine hydrochloride (OCT) and Salvia officinalis plant extract against Enterococcus faecalis. Seventy decoronated single-rooted human teeth were infected and divided into 6 test (n=10) and 2 control groups (n=5) (negative, sterile samples and positive, infected samples). Following irrigants were then applied to test groups: 2.5% NaOCl, 5.25% NaOCl, CHX, CHX+CTR, S. officinalis extract and OCT. The dentin chips were obtained from inner root canal walls and analyzed by counting the number of colony forming units (CFU). The 2.5% NaOCl, 5.25% NaOCl, CHX and OCT groups presented no bacterial growth (CFU=0). S. officinalis and CHX+CTR groups reduced the number of E. faecalis cells but could not eliminate all. OCT may have potential as an endodontic irrigant in treatment of infected root canals.