Authors :
Dr. Athira Ramesh; Dr. Rajesh Pillai; Dr. Afzal A; Dr. Sheila George
Volume/Issue :
Volume 8 - 2023, Issue 9 - September
Google Scholar :
https://bit.ly/3TmGbDi
Scribd :
https://tinyurl.com/t5hw3vwx
DOI :
https://doi.org/10.5281/zenodo.8410180
Abstract :
Aim:
To compare the resistance to fracture of root canal
treated mandibular premolars with abrasion and
abfraction (non -carious cervical) lesions involving the
pulp, restored with different post systems.Materials And Methods:
Human mandibular premolars (n=20) with single
root canal were divided randomly into four groups
(n=5). Wedge-shaped lesions (NCCLs) were created in
all teeth specimens on the buccal cervical area. After
root canal treatment, the teeth were grouped into (i)
NCCLs + prefabricated glass fibre-reinforced composite
post + composite resin core (NCCL+PGFRC+CRC); (ii)
NCCLs + prefabricated stainless steel post + composite
resin core (NCCL+ PSSP+CRC) (iii)NCCLs + custom
polyethylene fibre posts + composite resin core
(NCCL+CRFP+CRC); (iv) NCCLs + composite resin
core (NCCL+CRC). Axial compressive force was given
to the occlusal surface with a universal testing machine
until fracture. The crosshead speed was 0.5 mm/min.
Pairwise comparisons of the load-to-fracture among the
groups were analysed.Results:
Resistance to fracture was higher for NCCL+
PSSP+CRC than the other three groups, while
NCCL+CRC showed the least value.Conclusion:
NCCL filled with prefabricated stainless steel post
and composite resin core showed greater ability to
withstand compressive load than the other groups.
Keywords :
Non Carious- Cervical Lesion, Prefabricated Glass Fibre-Reinforced Composite Post, Prefabricated Stainless Steel Post, Custom Polyethylene Fibre Posts.
Aim:
To compare the resistance to fracture of root canal
treated mandibular premolars with abrasion and
abfraction (non -carious cervical) lesions involving the
pulp, restored with different post systems.Materials And Methods:
Human mandibular premolars (n=20) with single
root canal were divided randomly into four groups
(n=5). Wedge-shaped lesions (NCCLs) were created in
all teeth specimens on the buccal cervical area. After
root canal treatment, the teeth were grouped into (i)
NCCLs + prefabricated glass fibre-reinforced composite
post + composite resin core (NCCL+PGFRC+CRC); (ii)
NCCLs + prefabricated stainless steel post + composite
resin core (NCCL+ PSSP+CRC) (iii)NCCLs + custom
polyethylene fibre posts + composite resin core
(NCCL+CRFP+CRC); (iv) NCCLs + composite resin
core (NCCL+CRC). Axial compressive force was given
to the occlusal surface with a universal testing machine
until fracture. The crosshead speed was 0.5 mm/min.
Pairwise comparisons of the load-to-fracture among the
groups were analysed.Results:
Resistance to fracture was higher for NCCL+
PSSP+CRC than the other three groups, while
NCCL+CRC showed the least value.Conclusion:
NCCL filled with prefabricated stainless steel post
and composite resin core showed greater ability to
withstand compressive load than the other groups.
Keywords :
Non Carious- Cervical Lesion, Prefabricated Glass Fibre-Reinforced Composite Post, Prefabricated Stainless Steel Post, Custom Polyethylene Fibre Posts.
