Comparison of the coronal sealing ability of root canal sealers using the bacterial leakage method

Session

Dental Science

Description

A three-dimensional obturation and complete coronal seal is one the important aims of root canal treatment. Aim of the study to compare the sealing ability of two different instrumentation techniques and two endodontic sealers Canason and AH 26. Materials and methods: In this study were teste 68 human teeth. Teeth were instrumented with two different technique step-back and crown-down and irrigated with 2% NaOCl and 17% EDTA. After instrumentation roots were divided into 4 groups, 2 control groups (positive and negative) and 2 experimental groups according to root canal sealer: first group (32 teeth) were obturated with Canason and second group (32 teeth) were obturated with AH 26. These groups (1st and 2nd) were further subdivided into two subgroups (a and b) according to the root canal instrumentation technique. After one week, bacteria leakage was tested using a two-chamber method. The coronal portions of the root canal filling materials were placed in contact with E. Faecalis. Specimens were monitored every 24 hours for 33 days. Results: According to our study there were significant difference between subgroups obturated with Canason vs AH 26 and instrumented with step-back technique. Between subgroups obturated with Canason vs AH 26 and instrumented with crown-down there were no significant difference. Conclusion: Canason and AH 26 selaers have similar coronal sealing ability.

Keywords:

Canason, AH 26, sealing ability, bacterial leakage

Proceedings Editor

Edmond Hajrizi

ISBN

978-9951-982-41-2

Location

UBT Lipjan, Kosovo

Start Date

25-10-2025 9:00 AM

End Date

26-10-2025 6:00 PM

DOI

10.33107/ubt-ic.2025.132

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Oct 25th, 9:00 AM Oct 26th, 6:00 PM

Comparison of the coronal sealing ability of root canal sealers using the bacterial leakage method

UBT Lipjan, Kosovo

A three-dimensional obturation and complete coronal seal is one the important aims of root canal treatment. Aim of the study to compare the sealing ability of two different instrumentation techniques and two endodontic sealers Canason and AH 26. Materials and methods: In this study were teste 68 human teeth. Teeth were instrumented with two different technique step-back and crown-down and irrigated with 2% NaOCl and 17% EDTA. After instrumentation roots were divided into 4 groups, 2 control groups (positive and negative) and 2 experimental groups according to root canal sealer: first group (32 teeth) were obturated with Canason and second group (32 teeth) were obturated with AH 26. These groups (1st and 2nd) were further subdivided into two subgroups (a and b) according to the root canal instrumentation technique. After one week, bacteria leakage was tested using a two-chamber method. The coronal portions of the root canal filling materials were placed in contact with E. Faecalis. Specimens were monitored every 24 hours for 33 days. Results: According to our study there were significant difference between subgroups obturated with Canason vs AH 26 and instrumented with step-back technique. Between subgroups obturated with Canason vs AH 26 and instrumented with crown-down there were no significant difference. Conclusion: Canason and AH 26 selaers have similar coronal sealing ability.