Ayse Diljin Kececi - Academia.edu (original) (raw)

Papers by Ayse Diljin Kececi

Research paper thumbnail of A novel insertion design of fiber materials for the adhesive reattachment in vertically fractured teeth

PLOS ONE, Oct 13, 2021

This ex vivo study aimed to evaluate the strengthening effect of different ferrule and reattachme... more This ex vivo study aimed to evaluate the strengthening effect of different ferrule and reattachment designs with fiber and adhesive materials on vertically fractured teeth. Methods Ninety extracted single-root premolars were instrumented and divided into nine groups (two control groups and seven experimental groups; n = 10). The negative control (NC) group comprised of intact teeth, while the positive control (PC) group comprised of root canaltreated teeth. The roots of the teeth in the experimental groups were vertically fractured into two equal fragments. The fragments were reattached with one of the followings: 4-methacryloxyethyl trimellitate anhydride/methacrylate-tri-n-butyl borane (4-META/MMA-TBB) resin, 4-META/MMA-TBB + quartz fiber post, 4-META/MMA-TBB + glass fiber bundles, 4-META/MMA-TBB + quartz fiber post + 1 mm ferrule, 4-META/MMA-TBB + glass fiber bundles + 1 mm ferrule, 4-META/MMA-TBB + quartz fiber post + 2 mm ferrule, and 4-META/ MMA-TBB + glass fiber bundles + 2 mm ferrule. The core build-ups were made with composite resin. The specimens were subjected to compressive loading until failure occurred. Mean load necessary to fracture each sample and the fracture types of these samples were recorded. Results The highest mean fracture load was recorded in the NC group (1,036.7 N), which was not significantly higher than the PC group (989.66 N) (p > 0.05). The roots reattached with quartz fiber post demonstrated significantly less fracture strength (871.9 N) as compared to the other test and control groups (p < 0.05). There was no significant difference between the PC group and reattached fragments with different ferrule designs in terms of fracture resistance (p > 0.05).

Research paper thumbnail of Dental Travmada Splintleme

Turkiye Klinikleri Endodontics - Special Topics, 2019

Research paper thumbnail of Vital Pulpa Tedavilerinde Klinik Uygulama Teknikleri

Turkiye Klinikleri Endodontics - Special Topics, 2017

Research paper thumbnail of Strengthening effect of different fiber placement designs on root canal treated and bleached premolars

Odontology, Sep 7, 2020

To evaluate the strengthening effect of five different fibers with different placement designs in... more To evaluate the strengthening effect of five different fibers with different placement designs in root canal treated and intracoronally bleached premolars. Seventy extracted single-rooted premolars were distributed into 7 groups (G1-G7). Group 1 (G1) included the intact (I) teeth as the negative control. Group 2 (G2) included root canal treated, intra-coronally bleached and composite (C) restored teeth as the positive control. In the other five test groups after root canal treatment the teeth were intra-coronally bleached and fiber materials were placed into standard MOD cavities in the following different designs: an intracanal rigid fiber/Reforpost (G3,RF), an intracanal flexible fiber/ Everstick (G4, FF), four intracanal flexible pin fibers/Dentapreg Pin (G5,PF), an intercuspal flexible fiber /Dentapreg SFU (G6, IF) or an intra-coronal horseshoe-shaped/ Dentapreg SFU (G7,CF). All cavities were filled with a microfilled resin composite. Fracture resistance was tested using a universal testing machine under a crosshead speed of 1 mm/minute. One-way ANOVA and Duncan's Multiple Range tests were used for statistical analysis. Fracture types were recorded. The fracture resistance values in descending order were G1(I):

Research paper thumbnail of Epidemiyolojik Araştırma Yöntemleri ve Endodonti

Turkiye Klinikleri Endodontics - Special Topics, 2017

Research paper thumbnail of Beyazlatmanın Diş ve Çevre Dokularda Yaratabileceği Yan Etkiler

Selcuk dental journal, Apr 1, 2019

Research paper thumbnail of Ultrasonically Activated Irrigation to Remove Calcium Hydroxide from Apical Third of Human Root Canal System: A Systematic Review of In Vitro Studies

Journal of Endodontics, Oct 1, 2015

Research paper thumbnail of Micro push-out bond strengths of four fiber-reinforced composite post systems and 2 luting materials

Oral Surgery Oral Medicine Oral Pathology Oral Radiology and Endodontology, 2008

The aim of this study was to compare the bond strengths of 2 types of dual-cured luting agents us... more The aim of this study was to compare the bond strengths of 2 types of dual-cured luting agents used for cementation of 4 different fiber-reinforced composite (FRC) posts by using a push-out test and to evaluate the failure modes of these systems. Study design. Eighty human maxillary central incisors were divided into 8 groups (n ϭ 10), decoronated, and roots filled and restored with one of the following post systems: groups 1 to 4: translucent quartz FRC posts; groups 5 and 6: opaque glass FRC post; and groups 7 and 8: individually formed electrical glass fiber post. Cementation was performed with 2 types of dual-polymerizing resin luting agents: Variolink II (groups 1, 3, 5, and 7) and a new selfadhesive resin cement, RelyX Unicem (groups 2, 4, 6, and 8). Slices with a thickness of 1.00 Ϯ 0.05 mm were prepared from the coronal third of each root by using a low-speed saw. Push-out tests were performed at a crosshead speed of 1 mm/min by using a universal testing machine, and the data was statistically analyzed (analysis of variance [ANOVA] and Duncan tests; P Ͻ .05). Fracture modes were evaluated at original magnification ϫ40. Results. Micro push-out bond strengths were significantly affected by the type of luting agent and the type of post (P Ͻ .05, 2-way ANOVA). A significant difference was found among the groups (1-way ANOVA, P Ͻ .05). Fiberreinforced composite posts luted with Variolink II showed higher bond strengths, and the groups ordered as 5,

Research paper thumbnail of Comparison of the shaping abilities of two rotary and a hand instruments in simulated root canals

DergiPark (Istanbul University), 2006

Research paper thumbnail of Endodontik Tıp: Sistemik Hastalıkların Pulpal ve Periapikal Dokular ile İlişkisi

Süleyman Demirel Üniversitesi Sağlık Bilimleri Dergisi, Aug 20, 2021

Research paper thumbnail of Kök kanal tedavisi başarısızlıklarında retreatment uygulamaları

Süleyman Demirel Üniversitesi Tıp Fakültesi dergisi, 2006

SuleymanDemirel Universitesi TIP FAKULTESI DERGISI: 2006 Aralik; 13(4) Kok Kanal Tedavisi Basaris... more SuleymanDemirel Universitesi TIP FAKULTESI DERGISI: 2006 Aralik; 13(4) Kok Kanal Tedavisi Basarisizliklarinda Retreatment Uygulamalari Bulem Ureyen Kaya, Ayse Diljin Kececi Ozet Onceki kok kanal tedavisinin basarisiz olduguna karar verildiginde kanal dolgusunun sokulup yeniden yapilmasi retreatment. veya .revizyon. olarak adlandirilir. Retreatmentin basarisinda vaka secimi, uygun teknik ve ekipmanin yani sira prognozunun iyi degerlendirilmesi de etkili olur. Cerrahi yontemlere basvurmadan once endodontik olarak yapilabilecek ortograd girisimler manuel veya rotary aletlerin, sicak kondansatorlerin ya da bunlarin cesitli cozuculerle kombine kullanimi ile gerceklestirilebilir. Bu calismada Suleyman Demirel Universitesi Dis Hekimligi Fakultesine basvuran 8 hastada yapilan retreatment tedavileri ve 3 -24 ay arasindaki kontrolleri sunulmustur. Kok kanalinin yetersiz doldurulmasi, periradikuler bolgede lezyon varligi, alet kirilmalari ve/veya hasta sikayetlerinin bulunmasi gibi nedenlerle, daha onceki tedavisi basarisiz kabul edilen hastalara retreatment tedavileri uygulanmistir. Dogru endikasyon sinirlari icinde uygulanan retreatment tedavilerinin basari oranlarini arttiracagi dusunulmektedir. Anahtar kelimeler: Kok kanalinin yenilenmesi, basarisizlik, el aletleri, doner aletler. Abstract Retreatment of Failed Root Canal Therapy When the initial root canal therapy is defined as failed, the reperforming therapy following removal of the root filling is called .retreatment. or .revision.. The case selection, proper technique and equipment as well as detailed assessment of case prognosis affect the success of retreatment. Before applying surgical techniques, orthograd procedures performed endodontically can be realised using manual or rotary instruments, hot condansators or their combination with various solvents. This study presents the 3-24 months follow-up ofthe retreatment cases conducted on the patients who applied to the Dentistry Faculty of Suleyman Demirel University of Isparta. Key words: Retreatment, failure, manuel instruments, rotary instruments

Research paper thumbnail of Kök kanal dolgusunun uzaklaştırılmasında kullanılan farklı tekniklerin etkinliklerinin karşılaştırılması

Gazi Üniversitesi Diş Hekimliği Fakültesi Dergisi, 2006

Research paper thumbnail of Influence of custom-made mouth guards on strength, speed and anaerobic performance of taekwondo athletes

Dental Traumatology, Jun 1, 2009

The purpose of this study was to test the influence of custom-made mouth guards on strength and a... more The purpose of this study was to test the influence of custom-made mouth guards on strength and anaerobic performance of taekwondo athletes. The study included 21 (11 male and 10 female) trained subjects participating in taekwondo. Anaerobic power and anaerobic capacity, isokinetic quadriceps and hamstring strength, handgrip strength, isometric lower extremity and back strength, 20 m sprint time, squat and counter movement jumping height were measured in two randomized conditions: with or without custom-made (CM) mouth guards. No significant differences were observed between the two conditions (with or without CM mouth guards) in 20 m sprint time, jumping tests, handgrip strength, isometric leg or back strength. On the other hand, peak power and average power in Wingate Anaerobic Test and Hamstring Isokinetic Peak Torque significantly increased as a result of wearing mouth guard (P &amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;lt; 0.05). In conclusion, we can suggest that taekwondo athletes can use CM mouth guards without any negative effects on their strength and anaerobic performance.

Research paper thumbnail of Investigation of Root Canal Debridement Efficacy of Low Temperature Atmospheric Pressure Plasma Compared to the Current Techniques

Biotechnology & Biotechnological Equipment, 2013

Materials and Methods Sample selection Fifty-five extracted human mandibular premolars with unifo... more Materials and Methods Sample selection Fifty-five extracted human mandibular premolars with uniform root canal width, single straight root canals, mature apexes, and similar anatomic forms were used for this study. Root canal preparation the teeth were decoronated to obtain a standardized root canal length of 15 ± 0.5 mm and randomly divided into 5 test groups (n = 10 per group) and 1 control group (n = 5). the teeth were shaped using Profile NiTi rotary instruments (Dentsply, Maillefer, Ballaigues, Switzerland) to an apical size of #40/.06 according to the manufacturer's instructions. except for the negative control group, root canals in all groups were irrigated with 2 ml of naocl between each instrument change. its concentration was 1.3 % in the groups with MtAD, whereas it was 2.5 % in the groups without MtAD. Solutions were

Research paper thumbnail of Antibacterial efficacy of nonthermal atmospheric pressure plasma against

ABSTRACT form only given. In this work, killer effects of nonthermal atmospheric pressure plasma ... more ABSTRACT form only given. In this work, killer effects of nonthermal atmospheric pressure plasma on Candida albicans known as resistant microorganisms in the obdurate root canals were investigated. We produced atmospheric pressure plasma jet with 99% helium flow and 1% oxygen flow. Sabouraud dextrose agar (SDA) plates were inoculated with 0.2 mL broth culture of Candida albicans ATCC 254625 at three different concentrations of 0.5, 1 and 2 McFarland. Petri dishes and the pencil was also fixed at 10 mm. Plasma application was performed for 30s, 60s, 3m and 5m on each plate. For quantitative evaluation, 1ml broth culture of Candida albicans at concentration of 0.5 McFarland was prepared in 6 sterile Eppendorf tubes. The discharge was applied for 30s, 60s, 3m, 5m and 10 min on each tube. 13×20 mm area of microbial killing was observed with longer plasma exposure time (up to 5 min). The non thermal plasma can efficiently kill C. albicans in all application times. It seems to be harmless according to current root canal disinfectants because of its low temperature. Optical emission spectrum and current-voltage characteristics were given.

Research paper thumbnail of Determination of canal orifice co-ordinates and MB2 incidence of maxillary first molars in a Turkish sub-population

Acta Odontologica Scandinavica, Feb 4, 2014

To measure the co-ordinates of the root canal orifices and to determine the incidence of mesiobuc... more To measure the co-ordinates of the root canal orifices and to determine the incidence of mesiobuccal-2 (MB2) in maxillary first molars in a Turkish sub-population. Standard digital photographs were taken under a stereomicroscope from the occlusal aspect of each tooth (n = 176) before and after crown removal. Canal orifices were negotiated under moderate magnification using dental loupes. The coordinates of the orifices and the distances of each from the central fossa were measured by using geographic software. Intensity maps of the orifice locations were created by using the co-ordinates of all canal orifices. A representative map was drawn using the mean values of orifice locations and access projection area. In the right maxillary first molars, the mean values for the (X, Y) co-ordinates were (0.67, 2.68) for mesiobuccal-1 (MB1), (0.81, 0.84) for MB2, (-1.12, 1.26) for distobuccal-1 (D1), (-0.89, 0.23) for distobuccal-2 (D2) and (0, -2.50) for palatinal (P); the corresponding mean values in the left maxillary first molars were (-0.78, 2.56), (-0.98, 0.90), (0.99, 1.18), (0.69, 0.78) and (0.00, -2.53), respectively. The average MB1-MB2 distance was 1.97 mm. Distobuccalcanal orifices were localized at the distal side of the center in 98.3% of teeth. The incidence of MB2 was 46.02%. The distobuccal canal orifice is mostly located on the distal side of the central fossa. Thus, it should be considered that the access cavity of the maxillary molars may not be always limited mesially. The incidence of MB2 in this sub-population was 46.02%, which is of great importance clinically.

Research paper thumbnail of Evaluation of antimicrobial efficacy of cetrimide and <i>Glycyrrhiza glabra L.</i> extract against <i>Enterococcus faecalis</i> biofilm grown on dentin discs in comparison with NaOCl

Dental Materials Journal, 2016

Preparation of the antimicrobial agents G. glabra L. extract was obtained using G. glabra roots a... more Preparation of the antimicrobial agents G. glabra L. extract was obtained using G. glabra roots and rhizomes. The concentrated extract was standardized to contain 2% Glycyrrhizin by analyzing high performance liquid chromatography (HPLC) 14,15). Cetrimide (Alkyltriethilammoniumbromide) powder (Sigma Chemical, Steinheim, Germany) was used to obtain 2% solution. NaOCl 2% (Wizard, Rehber Chemicals, Istanbul, Turkey) and sterile saline (Polifarma, Tekirdag, Turkey) solutions were used. Determination of MBCs of antimicrobial agents The disc diffusion method was used to test the antimicrobial activity of the solutions against planktonic E. faecalis (ATCC 29212). Six millimeter paper discs were saturated with 10 µL of each solution (NaOCl, cetrimide, G. glabra extract and sterile saline) and placed onto Muller-Hinton Broth (MHB) plates that

Research paper thumbnail of Experimental evaluation of cyclic fatigue resistance of four different nickel-titanium instruments after immersion in sodium hypochlorite and/or sterilization

Journal of Applied Oral Science, Dec 1, 2013

N L7L LQVWUXPHQWV KDYH D KLJK ULVN RI VHSDUDWLRQ GXH WR WRUVLRQDO RU ÀH[XUDO IDWLJXH F\FOLF fatig... more N L7L LQVWUXPHQWV KDYH D KLJK ULVN RI VHSDUDWLRQ GXH WR WRUVLRQDO RU ÀH[XUDO IDWLJXH F\FOLF fatigue). Chemomechanical preparation, cleaning procedures, chemical disinfection and VWHULOL]DWLRQ FDXVH WKH FRUURVLRQ RI HQGRGRQWLF LQVWUXPHQWV WKDW PD\ ZHDNHQ WKH IUDFWXUH resistance of the instruments. Objective: To assess the effects of NaOCl immersion and DXWRFODYH VWHULOL]DWLRQ RQ WKH F\FOLF IDWLJXH UHVLVWDQFH RI 3UR)LOH)OH[0DVWHU 0WZR DQG 7ZLVWHG)LOHV 1L7L LQVWUXPHQWV WLS VL]H WDSHU Q 0DWHULDO DQG 0HWKRGV 7KH LQVWUXPHQWV Q IRU HDFK VXEJURXS ZHUH G\QDPLFDOO\ LPPHUVHG LQ 1D2&O LPPHUVHG in NaOCl and sterilized in one autoclave cycle; 5 cycles immersed in NaOCl and sterilized in autoclave and not immersed in NaOCl and not sterilized (control group). Dynamic cyclic IDWLJXH UHVLVWDQFH ZDV WHVWHG 7KH QXPEHU RI F\FOHV WR IDLOXUH 1&) ZHUH VWDWLVWLFDOO\ DQDO\]HG 3 5HVXOWV .UXVNDOO:DOOLV WHVW LQGLFDWHG VLJQL¿FDQW GLIIHUHQFHV DPRQJ WKH WHVWHG LQVWUXPHQWV LQ WHUPV RI 1&) 3 7KH PHDQ 1&) RI 0WZR ZDV KLJKHU WKDQ WKDW RI WKH 7ZLVWHG)LOH)OH[PDVWHU DQG 3UR)LOH respectively. NaOCl immersion and autoclave sterilization have no effect on the NCF values of the tested instruments (P>.05). Conclusions: Cyclic fatigue resistance of the tested NiTi instruments cannot be adversely affected by NaOCl immersion and autoclave sterilization. 3URGXFWLRQ SURFHVV 7ZLVWHG)LOHV RU GHVLJQ 7ZLVWHG)LOHV)OH[0DVWHU 0WZR DQG 3UR)LOH RI WKH LQVWUXPHQWV FDQ LQÀXHQFH WKHLU F\FOLF IDWLJXH UHVLVWDQFH

Research paper thumbnail of Efficacy of endodontic applications of ozone and low-temperature atmospheric pressure plasma on root canals infected with <i>Enterococcus faecalis</i>

Letters in Applied Microbiology, Oct 8, 2013

Significance and Impact of the Study: The present study handles different perspectives on chemome... more Significance and Impact of the Study: The present study handles different perspectives on chemomechanical preparation of root canals. Ozone and low-temperature atmospheric pressure plasma (LTAPP) were investigated to determine whether they could be an alternative for NaOCl. Up to now, chemical solutions (NaOCl, chlorhexidine digluconate, etc.…) have been used to disinfect the root canals. When the reported effects of LTAPP on biological and chemical decontamination were taken into consideration, a question rose whether it has antimicrobial efficacy in root canals infected with E. faecalis. According to the findings of the present study, LTAPP may constitute a promising aid in endodontics in disinfection of root canals.

Research paper thumbnail of A Retrospective Radiographic Study of Coronal-Periapical Status and Root Canal Filling Quality in a Selected Adult Turkish Population

Medical Principles and Practice, 2013

presence of AP was significantly correlated with inadequate coronal restorations and root canal f... more presence of AP was significantly correlated with inadequate coronal restorations and root canal fillings (p = 0.000). Conclusion: Tooth type, quality and type of coronal restorations, and length and homogeneity of root fillings significantly affected periapical status.

Research paper thumbnail of A novel insertion design of fiber materials for the adhesive reattachment in vertically fractured teeth

PLOS ONE, Oct 13, 2021

This ex vivo study aimed to evaluate the strengthening effect of different ferrule and reattachme... more This ex vivo study aimed to evaluate the strengthening effect of different ferrule and reattachment designs with fiber and adhesive materials on vertically fractured teeth. Methods Ninety extracted single-root premolars were instrumented and divided into nine groups (two control groups and seven experimental groups; n = 10). The negative control (NC) group comprised of intact teeth, while the positive control (PC) group comprised of root canaltreated teeth. The roots of the teeth in the experimental groups were vertically fractured into two equal fragments. The fragments were reattached with one of the followings: 4-methacryloxyethyl trimellitate anhydride/methacrylate-tri-n-butyl borane (4-META/MMA-TBB) resin, 4-META/MMA-TBB + quartz fiber post, 4-META/MMA-TBB + glass fiber bundles, 4-META/MMA-TBB + quartz fiber post + 1 mm ferrule, 4-META/MMA-TBB + glass fiber bundles + 1 mm ferrule, 4-META/MMA-TBB + quartz fiber post + 2 mm ferrule, and 4-META/ MMA-TBB + glass fiber bundles + 2 mm ferrule. The core build-ups were made with composite resin. The specimens were subjected to compressive loading until failure occurred. Mean load necessary to fracture each sample and the fracture types of these samples were recorded. Results The highest mean fracture load was recorded in the NC group (1,036.7 N), which was not significantly higher than the PC group (989.66 N) (p > 0.05). The roots reattached with quartz fiber post demonstrated significantly less fracture strength (871.9 N) as compared to the other test and control groups (p < 0.05). There was no significant difference between the PC group and reattached fragments with different ferrule designs in terms of fracture resistance (p > 0.05).

Research paper thumbnail of Dental Travmada Splintleme

Turkiye Klinikleri Endodontics - Special Topics, 2019

Research paper thumbnail of Vital Pulpa Tedavilerinde Klinik Uygulama Teknikleri

Turkiye Klinikleri Endodontics - Special Topics, 2017

Research paper thumbnail of Strengthening effect of different fiber placement designs on root canal treated and bleached premolars

Odontology, Sep 7, 2020

To evaluate the strengthening effect of five different fibers with different placement designs in... more To evaluate the strengthening effect of five different fibers with different placement designs in root canal treated and intracoronally bleached premolars. Seventy extracted single-rooted premolars were distributed into 7 groups (G1-G7). Group 1 (G1) included the intact (I) teeth as the negative control. Group 2 (G2) included root canal treated, intra-coronally bleached and composite (C) restored teeth as the positive control. In the other five test groups after root canal treatment the teeth were intra-coronally bleached and fiber materials were placed into standard MOD cavities in the following different designs: an intracanal rigid fiber/Reforpost (G3,RF), an intracanal flexible fiber/ Everstick (G4, FF), four intracanal flexible pin fibers/Dentapreg Pin (G5,PF), an intercuspal flexible fiber /Dentapreg SFU (G6, IF) or an intra-coronal horseshoe-shaped/ Dentapreg SFU (G7,CF). All cavities were filled with a microfilled resin composite. Fracture resistance was tested using a universal testing machine under a crosshead speed of 1 mm/minute. One-way ANOVA and Duncan's Multiple Range tests were used for statistical analysis. Fracture types were recorded. The fracture resistance values in descending order were G1(I):

Research paper thumbnail of Epidemiyolojik Araştırma Yöntemleri ve Endodonti

Turkiye Klinikleri Endodontics - Special Topics, 2017

Research paper thumbnail of Beyazlatmanın Diş ve Çevre Dokularda Yaratabileceği Yan Etkiler

Selcuk dental journal, Apr 1, 2019

Research paper thumbnail of Ultrasonically Activated Irrigation to Remove Calcium Hydroxide from Apical Third of Human Root Canal System: A Systematic Review of In Vitro Studies

Journal of Endodontics, Oct 1, 2015

Research paper thumbnail of Micro push-out bond strengths of four fiber-reinforced composite post systems and 2 luting materials

Oral Surgery Oral Medicine Oral Pathology Oral Radiology and Endodontology, 2008

The aim of this study was to compare the bond strengths of 2 types of dual-cured luting agents us... more The aim of this study was to compare the bond strengths of 2 types of dual-cured luting agents used for cementation of 4 different fiber-reinforced composite (FRC) posts by using a push-out test and to evaluate the failure modes of these systems. Study design. Eighty human maxillary central incisors were divided into 8 groups (n ϭ 10), decoronated, and roots filled and restored with one of the following post systems: groups 1 to 4: translucent quartz FRC posts; groups 5 and 6: opaque glass FRC post; and groups 7 and 8: individually formed electrical glass fiber post. Cementation was performed with 2 types of dual-polymerizing resin luting agents: Variolink II (groups 1, 3, 5, and 7) and a new selfadhesive resin cement, RelyX Unicem (groups 2, 4, 6, and 8). Slices with a thickness of 1.00 Ϯ 0.05 mm were prepared from the coronal third of each root by using a low-speed saw. Push-out tests were performed at a crosshead speed of 1 mm/min by using a universal testing machine, and the data was statistically analyzed (analysis of variance [ANOVA] and Duncan tests; P Ͻ .05). Fracture modes were evaluated at original magnification ϫ40. Results. Micro push-out bond strengths were significantly affected by the type of luting agent and the type of post (P Ͻ .05, 2-way ANOVA). A significant difference was found among the groups (1-way ANOVA, P Ͻ .05). Fiberreinforced composite posts luted with Variolink II showed higher bond strengths, and the groups ordered as 5,

Research paper thumbnail of Comparison of the shaping abilities of two rotary and a hand instruments in simulated root canals

DergiPark (Istanbul University), 2006

Research paper thumbnail of Endodontik Tıp: Sistemik Hastalıkların Pulpal ve Periapikal Dokular ile İlişkisi

Süleyman Demirel Üniversitesi Sağlık Bilimleri Dergisi, Aug 20, 2021

Research paper thumbnail of Kök kanal tedavisi başarısızlıklarında retreatment uygulamaları

Süleyman Demirel Üniversitesi Tıp Fakültesi dergisi, 2006

SuleymanDemirel Universitesi TIP FAKULTESI DERGISI: 2006 Aralik; 13(4) Kok Kanal Tedavisi Basaris... more SuleymanDemirel Universitesi TIP FAKULTESI DERGISI: 2006 Aralik; 13(4) Kok Kanal Tedavisi Basarisizliklarinda Retreatment Uygulamalari Bulem Ureyen Kaya, Ayse Diljin Kececi Ozet Onceki kok kanal tedavisinin basarisiz olduguna karar verildiginde kanal dolgusunun sokulup yeniden yapilmasi retreatment. veya .revizyon. olarak adlandirilir. Retreatmentin basarisinda vaka secimi, uygun teknik ve ekipmanin yani sira prognozunun iyi degerlendirilmesi de etkili olur. Cerrahi yontemlere basvurmadan once endodontik olarak yapilabilecek ortograd girisimler manuel veya rotary aletlerin, sicak kondansatorlerin ya da bunlarin cesitli cozuculerle kombine kullanimi ile gerceklestirilebilir. Bu calismada Suleyman Demirel Universitesi Dis Hekimligi Fakultesine basvuran 8 hastada yapilan retreatment tedavileri ve 3 -24 ay arasindaki kontrolleri sunulmustur. Kok kanalinin yetersiz doldurulmasi, periradikuler bolgede lezyon varligi, alet kirilmalari ve/veya hasta sikayetlerinin bulunmasi gibi nedenlerle, daha onceki tedavisi basarisiz kabul edilen hastalara retreatment tedavileri uygulanmistir. Dogru endikasyon sinirlari icinde uygulanan retreatment tedavilerinin basari oranlarini arttiracagi dusunulmektedir. Anahtar kelimeler: Kok kanalinin yenilenmesi, basarisizlik, el aletleri, doner aletler. Abstract Retreatment of Failed Root Canal Therapy When the initial root canal therapy is defined as failed, the reperforming therapy following removal of the root filling is called .retreatment. or .revision.. The case selection, proper technique and equipment as well as detailed assessment of case prognosis affect the success of retreatment. Before applying surgical techniques, orthograd procedures performed endodontically can be realised using manual or rotary instruments, hot condansators or their combination with various solvents. This study presents the 3-24 months follow-up ofthe retreatment cases conducted on the patients who applied to the Dentistry Faculty of Suleyman Demirel University of Isparta. Key words: Retreatment, failure, manuel instruments, rotary instruments

Research paper thumbnail of Kök kanal dolgusunun uzaklaştırılmasında kullanılan farklı tekniklerin etkinliklerinin karşılaştırılması

Gazi Üniversitesi Diş Hekimliği Fakültesi Dergisi, 2006

Research paper thumbnail of Influence of custom-made mouth guards on strength, speed and anaerobic performance of taekwondo athletes

Dental Traumatology, Jun 1, 2009

The purpose of this study was to test the influence of custom-made mouth guards on strength and a... more The purpose of this study was to test the influence of custom-made mouth guards on strength and anaerobic performance of taekwondo athletes. The study included 21 (11 male and 10 female) trained subjects participating in taekwondo. Anaerobic power and anaerobic capacity, isokinetic quadriceps and hamstring strength, handgrip strength, isometric lower extremity and back strength, 20 m sprint time, squat and counter movement jumping height were measured in two randomized conditions: with or without custom-made (CM) mouth guards. No significant differences were observed between the two conditions (with or without CM mouth guards) in 20 m sprint time, jumping tests, handgrip strength, isometric leg or back strength. On the other hand, peak power and average power in Wingate Anaerobic Test and Hamstring Isokinetic Peak Torque significantly increased as a result of wearing mouth guard (P &amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;lt; 0.05). In conclusion, we can suggest that taekwondo athletes can use CM mouth guards without any negative effects on their strength and anaerobic performance.

Research paper thumbnail of Investigation of Root Canal Debridement Efficacy of Low Temperature Atmospheric Pressure Plasma Compared to the Current Techniques

Biotechnology & Biotechnological Equipment, 2013

Materials and Methods Sample selection Fifty-five extracted human mandibular premolars with unifo... more Materials and Methods Sample selection Fifty-five extracted human mandibular premolars with uniform root canal width, single straight root canals, mature apexes, and similar anatomic forms were used for this study. Root canal preparation the teeth were decoronated to obtain a standardized root canal length of 15 ± 0.5 mm and randomly divided into 5 test groups (n = 10 per group) and 1 control group (n = 5). the teeth were shaped using Profile NiTi rotary instruments (Dentsply, Maillefer, Ballaigues, Switzerland) to an apical size of #40/.06 according to the manufacturer's instructions. except for the negative control group, root canals in all groups were irrigated with 2 ml of naocl between each instrument change. its concentration was 1.3 % in the groups with MtAD, whereas it was 2.5 % in the groups without MtAD. Solutions were

Research paper thumbnail of Antibacterial efficacy of nonthermal atmospheric pressure plasma against

ABSTRACT form only given. In this work, killer effects of nonthermal atmospheric pressure plasma ... more ABSTRACT form only given. In this work, killer effects of nonthermal atmospheric pressure plasma on Candida albicans known as resistant microorganisms in the obdurate root canals were investigated. We produced atmospheric pressure plasma jet with 99% helium flow and 1% oxygen flow. Sabouraud dextrose agar (SDA) plates were inoculated with 0.2 mL broth culture of Candida albicans ATCC 254625 at three different concentrations of 0.5, 1 and 2 McFarland. Petri dishes and the pencil was also fixed at 10 mm. Plasma application was performed for 30s, 60s, 3m and 5m on each plate. For quantitative evaluation, 1ml broth culture of Candida albicans at concentration of 0.5 McFarland was prepared in 6 sterile Eppendorf tubes. The discharge was applied for 30s, 60s, 3m, 5m and 10 min on each tube. 13×20 mm area of microbial killing was observed with longer plasma exposure time (up to 5 min). The non thermal plasma can efficiently kill C. albicans in all application times. It seems to be harmless according to current root canal disinfectants because of its low temperature. Optical emission spectrum and current-voltage characteristics were given.

Research paper thumbnail of Determination of canal orifice co-ordinates and MB2 incidence of maxillary first molars in a Turkish sub-population

Acta Odontologica Scandinavica, Feb 4, 2014

To measure the co-ordinates of the root canal orifices and to determine the incidence of mesiobuc... more To measure the co-ordinates of the root canal orifices and to determine the incidence of mesiobuccal-2 (MB2) in maxillary first molars in a Turkish sub-population. Standard digital photographs were taken under a stereomicroscope from the occlusal aspect of each tooth (n = 176) before and after crown removal. Canal orifices were negotiated under moderate magnification using dental loupes. The coordinates of the orifices and the distances of each from the central fossa were measured by using geographic software. Intensity maps of the orifice locations were created by using the co-ordinates of all canal orifices. A representative map was drawn using the mean values of orifice locations and access projection area. In the right maxillary first molars, the mean values for the (X, Y) co-ordinates were (0.67, 2.68) for mesiobuccal-1 (MB1), (0.81, 0.84) for MB2, (-1.12, 1.26) for distobuccal-1 (D1), (-0.89, 0.23) for distobuccal-2 (D2) and (0, -2.50) for palatinal (P); the corresponding mean values in the left maxillary first molars were (-0.78, 2.56), (-0.98, 0.90), (0.99, 1.18), (0.69, 0.78) and (0.00, -2.53), respectively. The average MB1-MB2 distance was 1.97 mm. Distobuccalcanal orifices were localized at the distal side of the center in 98.3% of teeth. The incidence of MB2 was 46.02%. The distobuccal canal orifice is mostly located on the distal side of the central fossa. Thus, it should be considered that the access cavity of the maxillary molars may not be always limited mesially. The incidence of MB2 in this sub-population was 46.02%, which is of great importance clinically.

Research paper thumbnail of Evaluation of antimicrobial efficacy of cetrimide and <i>Glycyrrhiza glabra L.</i> extract against <i>Enterococcus faecalis</i> biofilm grown on dentin discs in comparison with NaOCl

Dental Materials Journal, 2016

Preparation of the antimicrobial agents G. glabra L. extract was obtained using G. glabra roots a... more Preparation of the antimicrobial agents G. glabra L. extract was obtained using G. glabra roots and rhizomes. The concentrated extract was standardized to contain 2% Glycyrrhizin by analyzing high performance liquid chromatography (HPLC) 14,15). Cetrimide (Alkyltriethilammoniumbromide) powder (Sigma Chemical, Steinheim, Germany) was used to obtain 2% solution. NaOCl 2% (Wizard, Rehber Chemicals, Istanbul, Turkey) and sterile saline (Polifarma, Tekirdag, Turkey) solutions were used. Determination of MBCs of antimicrobial agents The disc diffusion method was used to test the antimicrobial activity of the solutions against planktonic E. faecalis (ATCC 29212). Six millimeter paper discs were saturated with 10 µL of each solution (NaOCl, cetrimide, G. glabra extract and sterile saline) and placed onto Muller-Hinton Broth (MHB) plates that

Research paper thumbnail of Experimental evaluation of cyclic fatigue resistance of four different nickel-titanium instruments after immersion in sodium hypochlorite and/or sterilization

Journal of Applied Oral Science, Dec 1, 2013

N L7L LQVWUXPHQWV KDYH D KLJK ULVN RI VHSDUDWLRQ GXH WR WRUVLRQDO RU ÀH[XUDO IDWLJXH F\FOLF fatig... more N L7L LQVWUXPHQWV KDYH D KLJK ULVN RI VHSDUDWLRQ GXH WR WRUVLRQDO RU ÀH[XUDO IDWLJXH F\FOLF fatigue). Chemomechanical preparation, cleaning procedures, chemical disinfection and VWHULOL]DWLRQ FDXVH WKH FRUURVLRQ RI HQGRGRQWLF LQVWUXPHQWV WKDW PD\ ZHDNHQ WKH IUDFWXUH resistance of the instruments. Objective: To assess the effects of NaOCl immersion and DXWRFODYH VWHULOL]DWLRQ RQ WKH F\FOLF IDWLJXH UHVLVWDQFH RI 3UR)LOH)OH[0DVWHU 0WZR DQG 7ZLVWHG)LOHV 1L7L LQVWUXPHQWV WLS VL]H WDSHU Q 0DWHULDO DQG 0HWKRGV 7KH LQVWUXPHQWV Q IRU HDFK VXEJURXS ZHUH G\QDPLFDOO\ LPPHUVHG LQ 1D2&O LPPHUVHG in NaOCl and sterilized in one autoclave cycle; 5 cycles immersed in NaOCl and sterilized in autoclave and not immersed in NaOCl and not sterilized (control group). Dynamic cyclic IDWLJXH UHVLVWDQFH ZDV WHVWHG 7KH QXPEHU RI F\FOHV WR IDLOXUH 1&) ZHUH VWDWLVWLFDOO\ DQDO\]HG 3 5HVXOWV .UXVNDOO:DOOLV WHVW LQGLFDWHG VLJQL¿FDQW GLIIHUHQFHV DPRQJ WKH WHVWHG LQVWUXPHQWV LQ WHUPV RI 1&) 3 7KH PHDQ 1&) RI 0WZR ZDV KLJKHU WKDQ WKDW RI WKH 7ZLVWHG)LOH)OH[PDVWHU DQG 3UR)LOH respectively. NaOCl immersion and autoclave sterilization have no effect on the NCF values of the tested instruments (P>.05). Conclusions: Cyclic fatigue resistance of the tested NiTi instruments cannot be adversely affected by NaOCl immersion and autoclave sterilization. 3URGXFWLRQ SURFHVV 7ZLVWHG)LOHV RU GHVLJQ 7ZLVWHG)LOHV)OH[0DVWHU 0WZR DQG 3UR)LOH RI WKH LQVWUXPHQWV FDQ LQÀXHQFH WKHLU F\FOLF IDWLJXH UHVLVWDQFH

Research paper thumbnail of Efficacy of endodontic applications of ozone and low-temperature atmospheric pressure plasma on root canals infected with <i>Enterococcus faecalis</i>

Letters in Applied Microbiology, Oct 8, 2013

Significance and Impact of the Study: The present study handles different perspectives on chemome... more Significance and Impact of the Study: The present study handles different perspectives on chemomechanical preparation of root canals. Ozone and low-temperature atmospheric pressure plasma (LTAPP) were investigated to determine whether they could be an alternative for NaOCl. Up to now, chemical solutions (NaOCl, chlorhexidine digluconate, etc.…) have been used to disinfect the root canals. When the reported effects of LTAPP on biological and chemical decontamination were taken into consideration, a question rose whether it has antimicrobial efficacy in root canals infected with E. faecalis. According to the findings of the present study, LTAPP may constitute a promising aid in endodontics in disinfection of root canals.

Research paper thumbnail of A Retrospective Radiographic Study of Coronal-Periapical Status and Root Canal Filling Quality in a Selected Adult Turkish Population

Medical Principles and Practice, 2013

presence of AP was significantly correlated with inadequate coronal restorations and root canal f... more presence of AP was significantly correlated with inadequate coronal restorations and root canal fillings (p = 0.000). Conclusion: Tooth type, quality and type of coronal restorations, and length and homogeneity of root fillings significantly affected periapical status.