Document Type : Original Article
Authors
1
Endodontic Department, Faculty of Dentistry, Suez Canal University, Ismailia, Egypt.
2
Associate Professor, Endodontic Department, Faculty of Dentistry, Suez Canal University, Ismailia, Egypt
3
Professor & Chairman of Endodontic Department, Faculty of Dentistry, Suez Canal University, Ismailia, Egypt.
Abstract
Aim: compare traditional access cavity (TAC) and conservative access cavity
(CAC) using micro-guided endodontics, by measuring the volume of dentin removed
(VDR) using cone beam computed tomography (CBCT) and fracture resistance (FR)
test. Methods: Sixty unidentified extracted human maxillary premolar teeth were
collected and divided into three groups: group A subjected to TAC, group B subjected
to CAC using micro-guided endodontics, and a control group which remained sound
without access cavity preparations. Groups A and B were scanned pre-operatively
and post-operatively by CBCT, then subjected to a fracture resistance test using an
Instron® universal testing machine after access cavity preparations with a control
group. The Mann-Whitney test was used to compare VDR between groups, and the
one-way ANOVA test was used to compare fracture resistance between groups.
Result: There was no discernible difference in fracture resistance between the CAC
and control groups. However, a significant difference was noted between the TAC,
CAC, and control groups. FR considerably decreased when VDR increased, and vice
versa, indicating a significant negative association between the two variables. There
was no discernible difference in fracture resistance between the CAC and control
groups. However, a notable distinction was noted between the TAC, CAC, and control
groups. VDR and FR showed a substantial negative association, declining significantly
when VDR rose and vice versa. Conclusion: According to the study’s limitations,
the CAC via micro-guided endodontics approach improved the fracture resistance of
endodontically treated teeth contrasted to TAC.
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