Ömür Kahraman - Academia.edu (original) (raw)

Papers by Ömür Kahraman

Research paper thumbnail of Evaluation of apically extruded debris during the canal preparation using new heat‐treated nickel‐titanium files in curved canals

Australian Endodontic Journal, Nov 7, 2020

Aim To compare the amount of debris extruded apically during root canal retreatment using ProTape... more Aim To compare the amount of debris extruded apically during root canal retreatment using ProTaper, Mtwo and Reciproc instruments with hand H-files. Methodology In total, 60 freshly extracted human mandibular incisor teeth were used. All root canals were prepared with a Reciproc R25 file than filled with gutta-percha and AH Plus sealer using cold lateral condensation before being assigned randomly to four groups (n = 15 each). In group 1, root fillings were removed with the Protaper Universal retreatment system; ProTaper Universal F3 and F4 instruments were used for the final preparation. In group 2, root fillings were removed with the Mtwo retreatment system; Mtwo size 30, .06 taper, size 35, .06 taper and size 40, .06 taper files were used for the final preparation. In group 3, root fillings were removed with Reciproc R25 instruments; Reciproc R40 instruments were used for the final preparation. In group 4, the root fillings were removed with Gates-Glidden burs and sizes 35, 30, and 25 H-files; for final preparation, a size 40 Hfile was used. Glass vials were used for debris collection. The vials were weighed before and after gutta-percha removal. Additionally, the times required for the retreatment procedures were recorded. Data were analysed statistically using one-way analysis of variance. Results The Reciproc system produced significantly smaller amounts of apical extruded debris than the other groups (P< 0.05). There was no significant difference between the Mtwo, H-file, and ProTaper groups. The ProTaper and Reciproc groups required significantly less time than the Mtwo and H-file groups (P˂ 0.001). Conclusions Use of the reciprocating single file system resulted in the extrusion of significantly less debris compared with the full-sequence rotary NiTi instruments and hand filing. Use of the ProTaper and Reciproc instruments required less time for retreatment procedures than use of the Mtwo or Hfile.

Research paper thumbnail of Efficacy of different irrigation agitation systems in the removal of root canal sealers from artificial standardised grooves

Australian Endodontic Journal

The present study aims to assess the efficacy of different irrigation agitation systems in removi... more The present study aims to assess the efficacy of different irrigation agitation systems in removing calcium silicate‐based sealers from artificial standardised apical grooves. After the root canal instrumentation of 96 teeth, artificial apical grooves were created in half of each root. The samples were divided into two main groups according to the sealer type (AH Plus Jet [APJ] and Sure‐Seal Root™ [SSR]) (n = 48). The root halves were then reassembled and divided into four experimental groups based on the final irrigation technique used: Conventional Syringe Irrigation (CSI), Ultrasonic Irrigant Agitation (UIA), Sonic Agitation (SA) and Manual Dynamic Agitation (MDA). The roots were then dissembled to assess the amount of root canal sealer. UIA significantly removed more of SSR sealer than CSI, MDA and SA while there was no statistical difference between CSI, MDA, SA and UIA groups in the APJ group. None of the irrigation agitation systems used had completely removed the APJ and SSR...

Research paper thumbnail of Evaluation of apically extruded debris during the canal preparation using new heat-treated nickel-titanium files in curved canals

Australian endodontic journal : the journal of the Australian Society of Endodontology Inc, 2020

This study compared the amount of apically extruded debris associated with different heat-treated... more This study compared the amount of apically extruded debris associated with different heat-treated Ni-Ti rotary systems during the preparation of curved root canals of mandibular molars. Sixty extracted human mandibular molars were selected. EdgeFile, K3XF, OneCurve (OC) and ROTATE files were used to prepare both mesial canals of teeth. The initial weight of each Eppendorf tube to be used was calculated using an analytical balance prior to instrumentation. After instrumentation, the tubes were then stored for 5 days in an incubator at 70°C. Each tube was reweighed, and the weight of the dry extruded debris was established by subtracting the pre-instrumentation and post-instrumentation weight of the Eppendorf tubes for each group. All files caused apical extrusion of debris. There was no statistical difference between the ROTATE, EdgeFile, OC and K3XF systems (P > 0.05). All the heat-treated Ni-Ti rotary systems led to similar apical debris extrusion during the canal preparation.

Research paper thumbnail of Evaluation of apically extruded debris during the canal preparation using new heat‐treated nickel‐titanium files in curved canals

Australian Endodontic Journal, Nov 7, 2020

Aim To compare the amount of debris extruded apically during root canal retreatment using ProTape... more Aim To compare the amount of debris extruded apically during root canal retreatment using ProTaper, Mtwo and Reciproc instruments with hand H-files. Methodology In total, 60 freshly extracted human mandibular incisor teeth were used. All root canals were prepared with a Reciproc R25 file than filled with gutta-percha and AH Plus sealer using cold lateral condensation before being assigned randomly to four groups (n = 15 each). In group 1, root fillings were removed with the Protaper Universal retreatment system; ProTaper Universal F3 and F4 instruments were used for the final preparation. In group 2, root fillings were removed with the Mtwo retreatment system; Mtwo size 30, .06 taper, size 35, .06 taper and size 40, .06 taper files were used for the final preparation. In group 3, root fillings were removed with Reciproc R25 instruments; Reciproc R40 instruments were used for the final preparation. In group 4, the root fillings were removed with Gates-Glidden burs and sizes 35, 30, and 25 H-files; for final preparation, a size 40 Hfile was used. Glass vials were used for debris collection. The vials were weighed before and after gutta-percha removal. Additionally, the times required for the retreatment procedures were recorded. Data were analysed statistically using one-way analysis of variance. Results The Reciproc system produced significantly smaller amounts of apical extruded debris than the other groups (P< 0.05). There was no significant difference between the Mtwo, H-file, and ProTaper groups. The ProTaper and Reciproc groups required significantly less time than the Mtwo and H-file groups (P˂ 0.001). Conclusions Use of the reciprocating single file system resulted in the extrusion of significantly less debris compared with the full-sequence rotary NiTi instruments and hand filing. Use of the ProTaper and Reciproc instruments required less time for retreatment procedures than use of the Mtwo or Hfile.

Research paper thumbnail of Efficacy of different irrigation agitation systems in the removal of root canal sealers from artificial standardised grooves

Australian Endodontic Journal

The present study aims to assess the efficacy of different irrigation agitation systems in removi... more The present study aims to assess the efficacy of different irrigation agitation systems in removing calcium silicate‐based sealers from artificial standardised apical grooves. After the root canal instrumentation of 96 teeth, artificial apical grooves were created in half of each root. The samples were divided into two main groups according to the sealer type (AH Plus Jet [APJ] and Sure‐Seal Root™ [SSR]) (n = 48). The root halves were then reassembled and divided into four experimental groups based on the final irrigation technique used: Conventional Syringe Irrigation (CSI), Ultrasonic Irrigant Agitation (UIA), Sonic Agitation (SA) and Manual Dynamic Agitation (MDA). The roots were then dissembled to assess the amount of root canal sealer. UIA significantly removed more of SSR sealer than CSI, MDA and SA while there was no statistical difference between CSI, MDA, SA and UIA groups in the APJ group. None of the irrigation agitation systems used had completely removed the APJ and SSR...

Research paper thumbnail of Evaluation of apically extruded debris during the canal preparation using new heat-treated nickel-titanium files in curved canals

Australian endodontic journal : the journal of the Australian Society of Endodontology Inc, 2020

This study compared the amount of apically extruded debris associated with different heat-treated... more This study compared the amount of apically extruded debris associated with different heat-treated Ni-Ti rotary systems during the preparation of curved root canals of mandibular molars. Sixty extracted human mandibular molars were selected. EdgeFile, K3XF, OneCurve (OC) and ROTATE files were used to prepare both mesial canals of teeth. The initial weight of each Eppendorf tube to be used was calculated using an analytical balance prior to instrumentation. After instrumentation, the tubes were then stored for 5 days in an incubator at 70°C. Each tube was reweighed, and the weight of the dry extruded debris was established by subtracting the pre-instrumentation and post-instrumentation weight of the Eppendorf tubes for each group. All files caused apical extrusion of debris. There was no statistical difference between the ROTATE, EdgeFile, OC and K3XF systems (P > 0.05). All the heat-treated Ni-Ti rotary systems led to similar apical debris extrusion during the canal preparation.