Incidence of dentinal crack formation during root canal preparation with two NiTi instruments activated by adaptive motion and continuous rotation: an in vitro study

Erhan ERKAN; Keziban OLCAY; Tan Fırat EYÜBOĞLU; Mustafa GÜNDOĞAR

doi:https://doi.org/10.18621/eurj.417982

Article Details

Incidence of dentinal crack formation during root canal preparation with two NiTi instruments activated by adaptive motion and continuous rotation: an in vitro study

Authors:

Erhan ERKAN | Keziban OLCAY | Tan Fırat EYÜBOĞLU | Mustafa GÜNDOĞAR

Publisher:

Prusa Medical Publishing

Main Topics:

Promotion of health

Journal:

The European Research Journal 2019 Vol.5 Issue 5, pp.757-762

Document Type:

Article

Publication Date:

9/2019

Document Language:

English

Document ID (Org No.):

2000662546

Frequency:

Bimonthly

eISSN:

2149-3189

DOI:

https://doi.org/10.18621/eurj.417982

Abstract:

 


Objectives:
The
aim of this study was to evaluate dentin crack incidence after root canal instrumentation
using ProTaper Next (PT Next; Dentsply Maillefer, Ballaigues, Switzerland) and
Twisted File Adaptive (TF Adaptive; Sybron Endo, Orange, California, USA) at
different kinematics. 


Methods: Sixty
human extracted premolar teeth were selected and divided into 4 main groups.
Group 1: PT Next with continuous rotation (n = 15); Group 2: PT Next with
adaptive motion (n = 15); Group 3: TF Adaptive with continuous rotation (n = 15);
Group 4: TF Adaptive with adaptive motion (n = 15). Fifteen unprepared teeth
were used as control group. Crowns of the teeth were removed and roots were
sectioned at 3, 6, and 9 mm from the apex using a diamond saw. Finally root
dentin pieces were evaluated under stereomicroscope at x25 magnification.
Digital images were evaluated by 2 researchers. 


Results: No
cracks were observed in the control group. In groups 2 and 4 no fracture was
observed at the level of 9 mm and similarly in group 4 at 6 mm level. Group 3
showed a signiﬁcantly higher dentin crack formation followed by Group 1, 2, 4
and control group respectively (p <
0.039). There was no significant difference between groups at 6 mm and 9 mm
levels (p = 0.497) except for only 3 mm
level (p < 0.035). 









Conclusions: It
was concluded, both adaptive motion and continuous rotationpromoted dentinal
defect. Adaptive motion produced less dentinal defects all dentin levels but
there was no significant difference.



.

Article Details

Incidence of dentinal crack formation during root canal preparation with two NiTi instruments activated by adaptive motion and continuous rotation: an in vitro study

Authors: Erhan ERKAN | Keziban OLCAY | Tan Fırat EYÜBOĞLU | Mustafa GÜNDOĞAR

Publisher: Prusa Medical Publishing

Main Topics: Promotion of health

Journal: The European Research Journal 2019 Vol.5 Issue 5, pp.757-762

Document Type: Article

Publication Date: 9/2019

Document Language: English

Document ID (Org No.): 2000662546

Frequency: Bimonthly

eISSN: 2149-3189

DOI: https://doi.org/10.18621/eurj.417982

Issues

Authors:

Erhan ERKAN | Keziban OLCAY | Tan Fırat EYÜBOĞLU | Mustafa GÜNDOĞAR

Publisher:

Prusa Medical Publishing

Main Topics:

Promotion of health

Journal:

The European Research Journal 2019 Vol.5 Issue 5, pp.757-762

Document Type:

Article

Publication Date:

9/2019

Document Language:

English

Document ID (Org No.):

2000662546

Frequency:

Bimonthly

eISSN:

2149-3189

DOI:

https://doi.org/10.18621/eurj.417982