Effect of Different All-Ceramic Crown System on Fracture Resistance and Failure Pattern of Endodontically Treated Maxillary Premolars Restored With and Without Glass Fiber Posts

Salameh, Ziad; Sorrentino, Roberto; Ounsi, Hani F.; Goracci, Cecilia; Tashkandi, Esam; Tay, Franklin R.; Ferrari, Marco

doi:10.1016/j.joen.2007.01.017

Cited by 61 publications

(73 citation statements)

References 30 publications

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“…However, a post with a high elastic modulus could be more prone to cause unrestorable fractures. This is why the use of posts with lower elastic modulus such as glass fiber ones have been proposed by several authors [34][35][36]. The advantage of glass fiber posts is that they are able to improve the bending resistance and that failures, if they occur, are more easily restorable.…”

Section: Discussionmentioning

confidence: 99%

Adhesive restoration of anterior endodontically treated teeth: influence of post length on fracture strength

et al. 2013

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Objectives This study aims to evaluate the fracture resistance of endodontically treated anterior teeth restored with crowns made of composite or ceramic and retained without the use of a post (endocrowns) or with posts of 5 mm (short) and 10 mm in length (long). Material and methods Forty-eight intact maxillary incisors were selected for the study. After endodontic treatment, the crowns were sectioned 2 mm coronally to the cementoenamel junction provided with a ferrule of 2 mm. The roots were randomly divided into six groups (n=8) according to the post length and type of coronary restoration. The crowns were fabricated with the chairside economical restoration of esthetic ceramics system. Group 1 was restored with a 10-mm glass fiber post, composite core, and a full-coverage ceramic crown (LPCer); group 2, with a 5-mm glass fiber post, composite core, and a full-coverage ceramic crown (SPCer); group 3, with a 10-mm glass fiber post, composite core, and a fullcoverage composite crown (LPCpr); group 4, with a 5-mm glass fiber post, composite core, and a full-coverage composite crown (SPCpr); and groups 5 (EndoCer) and 6 (EndoCpr) were restored with ceramic and composite endocrowns, respectively. The teeth were then thermomechanically loaded in a chewing machine. After fatigue, the specimens were loaded to fracture. Data were analyzed with ANOVA and chi-square test. Mode of failure was defined as repairable or non-repairable. Results Presence of post, post length, and crown material had no significant effect on the fracture resistance. Groups restored with endocrowns presented a higher number of repairable fractures in respect to the other groups. Conclusions Presence of a post had no effect on the restorations' fracture strength. Clinical relevance Although this in vitro study has some limitations in respect to its clinical relevance, the restoration of largely destroyed anterior teeth with the use of an endocrown or a short glass fiber post might have advantages over a large glass fiber post.

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Section: Discussionmentioning

confidence: 99%

Adhesive restoration of anterior endodontically treated teeth: influence of post length on fracture strength

et al. 2013

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“…Lityumdisilikat(IPS Press e-max) ile güçlendiri-lmiş cam seramik restorasyonlar yüksek estetik özellik-lerinden dolayı üst çene ön bölge dişlerinin lamine veneer veya tam seramik veneer ile restorasyonunda sıklıkla tercih edilmektedir. Lityumdisilikat ile güçlen-dirilmiş seramikler diş dokusuna benzer optik özellikler taşımaktadır ve çok farklı renk seçenekleri mevcuttur [6][7][8][9] . Ayrıca içeriğindeki yüksek silisyum silanlanmasını ve diş dokusu ile bağlantısını güçlendirmektedir.…”

Section: Introductionunclassified

Farkli Post-Kor Si̇stemleri̇ni̇n Kirilma Dayaniminin i̇n-Vi̇tro Olarak Değerlendi̇ri̇lmesi̇

Ekren¹

2017

Atatürk Üniversitesi Diş Hekimliği Fakültesi Dergisi

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“…Lityumdisilikat ile güçlen-dirilmiş seramikler diş dokusuna benzer optik özellikler taşımaktadır ve çok farklı renk seçenekleri mevcuttur [6][7][8][9] . Ayrıca içeriğindeki yüksek silisyum silanlanmasını ve diş dokusu ile bağlantısını güçlendirmektedir.…”

Section: Introductionunclassified

Farkli Post-Kor Si̇stemleri̇ni̇n Kirilma Dayaniminin i̇n-Vi̇tro Olarak Değerlendi̇ri̇lmesi̇

EKREN¹

2016

Atatürk Üniversitesi Diş Hekimliği Fakültesi Dergisi

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ÖZAmaç: Bu çalışmanın amacı döküm Ni-Cr, fiber post ve kompozit kor ve preslenmiş lithiumdisilicate post-kor sistemlerinin kırılma dirençlerinin karşılaştırmalı değerlendirilmesidir. Gereç ve Yöntem: Toplanan maksiler anterior dişlere kanal tedavisi uygulandı. Kök uzunlukları 10 mm olacak şekilde standardize edildikten sonra kök kanallarına post yuvaları hazırlandı. Toplamda 30 adet diş tesadüfi olarak 3 gruba ayrıldı(n=10). Post yuvalarının ölçüsü patern rezin ile alındı ve laboratuara gönderildi. Laboratuar işlemleri sonrası Ni-Cr ve Li-disilikat örnekler hazırlandı. Hazırlanan post korlar ve fiber postlar duel-kür rezin siman ile post yuvalarına simante edildi. Test örnekleri oda ısısında 24 saat bekletildikten sonra 7 0 C-50 0 C arasında termal döngüye maruz bırakıldı. Termal döngü sonrası test örneklerine testometrik cihazında 1mm/dk hızla örnek kırılana kadar kuvvet uygulandı. SPSS programı kullanılarak Tek yönlü ANOVA ve Dunnett T3 testi(α=0.05) ile verilerin istatistiği yapıldı. Bulgular: Hazırlanan döküm Ni-Cr test örneklerinin kırılma direnci 334.2 ±130.5 N, fiber-post kompozit kor örneklerin kırılma direnci 280.2 ±62.5 N, li-disilikat örneklerin kırılma direnci ise 162.8 ±28.6 N bulunmuştur. Ni-Cr döküm alaşımı kullanılan test örnekleri en yüksek kırılma direncini gösterirken, lidisilikat grubundaki örnekler en düşük kırılma direncini göstermiştir. Ni-Cr ve fiber post kompozit kor test örnekleri arasında istatistiki olarak anlamlı fark bulunamamıştır Sonuç: Çalışmanın sınırları dahilinde, estetik avantajları yüksek olmasına rağmen post kor yapımında Li-disilikat kullanılması kırılma direncinin göreceli düşük olması nedeniyle risk taşımaktadır. Anahtar kelimeler: Post-kor, kırılma direnci, aşırı hasarlı dişler ABSTRACT Aim: The aim of this study was to evaluate and compare the fracture resistance of post-core systems made of cast Ni-Cr, fiber post and composite core and pressed li-disilicate post-core systems. Material and Methods: Root canal treatment was conducted on collected sound maxillary anterior teeth. After standardization of root length as 10 mm, post space was prepared. A total of 30 teeth were divided into 3 groups (n=10) randomly for Ni-Cr, lithiumdisilicate and fiber post-composite core. The impression of post space was taken with pattern resin. Following the laboratory procedures, Ni-Cr and lithiumdisilicate post-core were prepared. Fabricated post-cores and fiber posts were luted with duel-cure resin cement. After 24 hours test specimens were subjected to thermal cycling between 7 0 C and 50 0 C and were subjected to fracture test with a cross-head speed of 1mm/min. Data were subjected to one-way ANOVA followed by Dunnett T3 tests for statistical analyses (α=0.05) using SPSS 21. Results: The mean and standard deviation of maximum fracture force was 334.2 ±130.5 N for Cast Ni-Cr, 280.2 ±62.5 N for Fiber post and 162.8 ±28.6 N for Lithium-disilicate. Teeth which received Ni-Cr post cores had highest fracture resistance however lithiumdisilicate group had the least. There was no statistica...

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Effect of Different All-Ceramic Crown System on Fracture Resistance and Failure Pattern of Endodontically Treated Maxillary Premolars Restored With and Without Glass Fiber Posts

Cited by 61 publications

References 30 publications

Adhesive restoration of anterior endodontically treated teeth: influence of post length on fracture strength

Adhesive restoration of anterior endodontically treated teeth: influence of post length on fracture strength

Farkli Post-Kor Si̇stemleri̇ni̇n Kirilma Dayaniminin i̇n-Vi̇tro Olarak Değerlendi̇ri̇lmesi̇

Farkli Post-Kor Si̇stemleri̇ni̇n Kirilma Dayaniminin i̇n-Vi̇tro Olarak Değerlendi̇ri̇lmesi̇

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