BOND STRENGTH OF THREE TYPES OF FIBER POSTS TO THREE REGIONS OF ROOT CANAL DENTIN

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NOUKAR S.; DORRIZ H.; HAJIMIRAGHA HABIB; SHAMASHIAN N.

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Journal: Journal of Dental Medicine Year:2009 | Volume:22 | Issue:1 (58) Page(s): 19-26

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Information Journal Paper

Title

BOND STRENGTH OF THREE TYPES OF FIBER POSTS TO THREE REGIONS OF ROOT CANAL DENTIN

Author(s)

NOUKAR S. | DORRIZ H. | HAJIMIRAGHA HABIB | SHAMASHIAN N. | Issue Writer Certificate

Keywords

FIBER POSTQ2

BOND STRENGTHQ2

RESIN CEMENTQ2

Abstract

Background and Aim: Debonding is the most common failure type of FIBER POSTs. This in vitro study aimed to evaluate the BOND STRENGTH of 3 different FIBER POSTs cemented with a resin luting agent in three regions of prepared post spaces after being subjected to termocycling.Materials and Methods Thirty six mandibular first premolars were sectioned at the cemento-enamel junction and were treated endodontically. After one week the post spaces were prepared and roots were divided into 3 groups of 12 specimens according to the post types (D.T.Composipost, D.T.White, D.T.Light). Sealbond Cement Dual II was used in all groups. One day after cementation, specimens were subjected to 3500 thermal cycles (5°C/55°C). Each root was then embedded in acrylic resin and sectioned perpendicular to long axis. Three 1-mm tick segments from apical, middle and cervical thirds were prepared. Push out test was performed. Data were analyzed with 2-way ANOVA (P<0.05). All root segments and dislodged posts were observed with stereomicroscope to figure out their failure modes.Results: The post type had no significant effect on BOND STRENGTH (p=0.08). However BOND STRENGTH at the coronl segment was higher than the other segments (p=0.005). Mixed mode was the mostly occurred failure mode with D.T.Composipost and D.T.Light but with D.T.White, the mostly occurred failure mode was adhesive between the post and cement.Conclusion: Different FIBER POSTs have relatively similar BOND STRENGTH to root dentin, BOND STRENGTH at the coronl segment was higher than the other segments.

Cites

COMPARING THE EFFECT OF SELF-ADHESIVE RESIN CEMENTS AND SELF-ETCHING BONDING SYSTEM ON RETENTIVE STRENGTH OF DT LIGHT FIBER POST: AN IN-VITRO STUDY

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APA: Copy

NOUKAR, S., DORRIZ, H., HAJIMIRAGHA, HABIB, & SHAMASHIAN, N.. (2009). BOND STRENGTH OF THREE TYPES OF FIBER POSTS TO THREE REGIONS OF ROOT CANAL DENTIN. JOURNAL OF DENTAL MEDICINE, 22(1 (58)), 19-26. SID. https://sid.ir/paper/25747/en

Vancouver: Copy

NOUKAR S., DORRIZ H., HAJIMIRAGHA HABIB, SHAMASHIAN N.. BOND STRENGTH OF THREE TYPES OF FIBER POSTS TO THREE REGIONS OF ROOT CANAL DENTIN. JOURNAL OF DENTAL MEDICINE[Internet]. 2009;22(1 (58)):19-26. Available from: https://sid.ir/paper/25747/en

IEEE: Copy

S. NOUKAR, H. DORRIZ, HABIB HAJIMIRAGHA, and N. SHAMASHIAN, “BOND STRENGTH OF THREE TYPES OF FIBER POSTS TO THREE REGIONS OF ROOT CANAL DENTIN,” JOURNAL OF DENTAL MEDICINE, vol. 22, no. 1 (58), pp. 19–26, 2009, [Online]. Available: https://sid.ir/paper/25747/en

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