Evaluation of Selected Physical Properties and Dentin Bond Strength of Two Different Root Canal Sealers
Maha Said Abd EL Fatah;
Abstract
The aim of the present study was to evaluate two different sealers in terms of:
I. Bond strength of sealer to root canal dentin wall.
II. Adaptation and penetration of sealer into dentinal tubules.
III. Selected physical properties:
- Flow.
- Film thickness.
- Setting time.
I-Evaluation of the bond strength of sealer to the root canal dentin wall and the penetration of sealer into the dentinal tubules:
- A total of thirty extracted human permanent anterior single rooted teeth were decoronated at the CEJ, cleaned and prepared using K-file till size 55.
- Roots were divided into 2 equal groups (n=15) according to the obturation material:
Group I: Bioceramic based sealer (Encosequence BC sealer).
Group II: Resin based sealer (AH Plus sealer).
Each group was subdivided into two subgroups:
Subgroup A: specimens (n=10) of this group were subjected to evaluation of the bond strength of the sealer to the root canal dentin.
Subgroup B: specimens (n=5) of this group were subjected to evaluation of the sealer adaptability.
II-Evaluation of selected physical properties:
The flow, film thickness and setting time tests were done according to the ISO standards.
Data were collected, tabulated and statistically analyzed.
In regard to the bond strength test results it was observed that the Endosequence BC had insignificant difference in mean bond strength compared to AH Plus and that the middle root sections had the highest statistical mean bond strength followed by the apical sections and the least were the coronal sections with significant difference between each other at P≤0.001. The scanning electron microscopic examination revealed that AH Plus had higher significant mean adaptability compared to Endosequence BC and that the coronal sections had the highest statistical mean adaptability followed by the middle sections and the least were the apical sections with significant difference between each other at P≤0.001. Endosequence BC showed higher significant mean flow and lower significant mean film thickness and setting time compared to AH Plus.
Conclusions:
Under the conditions of the present study, it was concluded that:
1. The bond strength of the bioceramic based sealer (Endosequence BC) is similar to that of the resin based sealer (AH Plus).
2. The root canal sealer's penetration into dentinal tubule is not the only indication about its bond strength.
3. The physical properties of the bioceramic based sealer (Endosequence BC) are valuable.
I. Bond strength of sealer to root canal dentin wall.
II. Adaptation and penetration of sealer into dentinal tubules.
III. Selected physical properties:
- Flow.
- Film thickness.
- Setting time.
I-Evaluation of the bond strength of sealer to the root canal dentin wall and the penetration of sealer into the dentinal tubules:
- A total of thirty extracted human permanent anterior single rooted teeth were decoronated at the CEJ, cleaned and prepared using K-file till size 55.
- Roots were divided into 2 equal groups (n=15) according to the obturation material:
Group I: Bioceramic based sealer (Encosequence BC sealer).
Group II: Resin based sealer (AH Plus sealer).
Each group was subdivided into two subgroups:
Subgroup A: specimens (n=10) of this group were subjected to evaluation of the bond strength of the sealer to the root canal dentin.
Subgroup B: specimens (n=5) of this group were subjected to evaluation of the sealer adaptability.
II-Evaluation of selected physical properties:
The flow, film thickness and setting time tests were done according to the ISO standards.
Data were collected, tabulated and statistically analyzed.
In regard to the bond strength test results it was observed that the Endosequence BC had insignificant difference in mean bond strength compared to AH Plus and that the middle root sections had the highest statistical mean bond strength followed by the apical sections and the least were the coronal sections with significant difference between each other at P≤0.001. The scanning electron microscopic examination revealed that AH Plus had higher significant mean adaptability compared to Endosequence BC and that the coronal sections had the highest statistical mean adaptability followed by the middle sections and the least were the apical sections with significant difference between each other at P≤0.001. Endosequence BC showed higher significant mean flow and lower significant mean film thickness and setting time compared to AH Plus.
Conclusions:
Under the conditions of the present study, it was concluded that:
1. The bond strength of the bioceramic based sealer (Endosequence BC) is similar to that of the resin based sealer (AH Plus).
2. The root canal sealer's penetration into dentinal tubule is not the only indication about its bond strength.
3. The physical properties of the bioceramic based sealer (Endosequence BC) are valuable.
Other data
| Title | Evaluation of Selected Physical Properties and Dentin Bond Strength of Two Different Root Canal Sealers | Other Titles | تقييم بعض الخواص الفيزيائية وقوة الإلتصاق للعاج لأثنين من المواد اللاصقة لحشوات قناة الجذر | Authors | Maha Said Abd EL Fatah | Issue Date | 2015 |
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