Effect of restorative treatment with endocrown and ferrule on the mechanical behavior of anterior endodontically treated teeth: An in vitro analysis

Silva‐Sousa, Alice Corrêa; Moris, Izabela Cristina Maurício; Barbosa, Ana Flávia Simões; Silva-Sousa, Yara Teresinha Corrêa; Sousa‐Neto, Manoel Damião; Pires, Cassiano Ricardo Ferreira; Gomes, Érica Alves

doi:10.1016/j.jmbbm.2020.104019

Cited by 21 publications

(36 citation statements)

References 33 publications

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“…The control group has shown a higher fracture rate (50%) of the glass-ceramic piece without compromising the fiber post or the remnant (Type II), agreeing with several authors 4,[18][19][20][21][22][23] . In relation to failure mode, it has been reported in literature a maximum incisal forces of almost always below 200N for restorations in anterior teeth 24,25. Our research demonstrated the need of a greater force for fracturing the central incisors than the normal values of oblique loads described in the literature, corroborating with some recent studies 10,19,22,23 .…”

Section: Discussionsupporting

confidence: 82%

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Fracture strength and failure load of CAD/CAM fabricated endocrowns performed with different designs

Souza

Cumerlato²,

Feltrin³

et al. 2022

Braz.j. of oral sci.

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Aim: Endocrown restorations are commonly used to rehabilitate endodontically treated posterior teeth and their use is wellfounded in these cases. However, to date, there is little scientific evidence of their behavior in anterior teeth. The aim of this in vitro study was to evaluate the compressive strength of upper central incisors teeth, restored with glass-ceramic total crowns by the conventional anatomical core technique, and compare them to teeth restored with endocrowns with and without the presence of ferrule. Methods: Thirty teeth were randomly distributed into three groups: GE2 - endocrown group with 2 mm ferrule, GE0 - endocrown group without a ferrule, and GC - conventional crown with intraradicular post group. Crowns were cemented and teeth submitted to the 45o compression test until the fracture happened. Fractured specimens were analyzed to determine the fracture pattern. Descriptive analysis of the variables was performed and one-way analysis of variance was utilized to analyze the data for significant differences at p < 0.05. Results: The results of the control group (284.5 ± 201.05N) showed the highest fracture resistance value, followed by the 2mm group (274.54 ± 199.43N) and by the 0mm group (263.81 ± 80.05N). There was no statistically significant difference between all the groups (p = 0.964). Conclusions: The absence of a cervical enamel necklace favored a debonding of the pieces and endodontically treated anterior teeth could be restored with endocrown, which could be considered a conservative and viable treatment option.

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Section: Discussionsupporting

confidence: 82%

“…In addition, the masticatory stresses and forces received to the tooth are better dissipated when endocrows are placed 19 . Nevertheless, some studies show that the full crown is still more reliable than endocrown 4,20 .…”

Section: Discussionmentioning

confidence: 99%

Fracture strength and failure load of CAD/CAM fabricated endocrowns performed with different designs

Souza

Cumerlato²,

Feltrin³

et al. 2022

Braz.j. of oral sci.

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“…Em 2020, no estudo in vitro realizado por Silva-Sousa et al 42 caninos superiores foram estudados. Em relação à fratura, o estudo concluiu que os dentes reabilitados com pinos de fibra se mostraram mais resistentes em relação às endocrowns.…”

Section: Discussionunclassified

“…O estudo de Silva-Sousa et al 42 está de acordo com o estudo de Lima et al 7 , no qual o mesmo afirma que a presença da férula aumenta a resistência à fratura dos dentes restaurados, sendo um fator importante para a retenção da restauração. Isso pode ser comprovado ao ser relatado que no estudo de Silva-Sousa et al 42 nenhuma amostra sem férula dos dentes caninos sobreviveu ao teste de fadiga quando restaurados com endocrown. Paralelamente a esse resultado, os que possuíam a férula se mostraram viáveis para reabilitação em dentes anteriores.…”

Section: Discussionunclassified

Restaurações endocrown: uma revisão de literatura

et al. 2021

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INTRODUÇÃO: As restaurações endocrown têm sido uma técnica de restauração alternativa para dentes tratados endodonticamente destruídos extensivamente. São restaurações protéticas que possuem retenção macromecânica dentro da câmara pulpar de um dente despolpado e microrretenção com técnicas de cimentação adesiva na câmara e nas bordas da cavidade. É um procedimento restaurador menos traumático e proporciona melhor manutenção do remanescente dentário quando comparado à técnica com retentores intrarradiculares, pois não requerem desobstrução do conduto, com resultados estéticos e funcionais satisfatórios em estudos de longo prazo. OBJETIVO: O objetivo deste trabalho é revisar a literatura sobre as restaurações endocrown, bem como seu funcionamento clínico. METODOLOGIA: A revisão foi realizada por meio de levantamento bibliográfico online de artigos científicos nas plataformas Pubmed, Scielo e Google Scholar por meio dos descritores: dente não vital, prótese dentária, reabilitação oral e cerâmica, respeitando o prazo de 1999 a 2020, além de capítulos de livros de referência na prática odontológica. CONSIDERAÇÕES FINAIS: Concluiu-se que o uso da restauração endocrown é uma alternativa confiável para restaurar molares extensamente destruídos endodonticamente tratados, agregando diversas vantagens do ponto de vista funcional e estético. Porém, mais estudos clínicos ainda são necessários para que o uso em pré-molares e dentes anteriores possa ser realizado, com segurança e sucesso, em longo prazo.

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“…Other types of treatments, generally less conservative, are available to treat posterior teeth using indirect treatments, nowadays generally performed with CAD/CAM technology [6,7]. Endodontic treatments are not considered complete and successful until definitive coronary restoration is performed [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

The Restored Premolars Biomechanical Behavior: FEM and Experimental Moiré Analyses

et al. 2022

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This study applied the finite element method (FEM) and the moiré strip projection method to evaluate the biomechanical behavior of healthy and endodontic-treated premolar teeth. The finite element method and the moiré strip projection method were applied to evaluate the influence of restored materials in association with cervical lesions and were considered as strain estimates for a tooth sample with 21 units, under loads of 25, 50, 75, and 100 N, frontal and oblique applied. The focused cases were: tooth H healthy; tooth A-MOD amalgam; tooth AL-MOD amalgam + lesion; tooth ALR-MOD amalgam + injury restored; tooth R-MOD resin; tooth RL-MOD resin + lesion; tooth RLR-MOD resin + injury restored. The results obtained by FEM simulation can be considered perfectly validated by the results presented by the experimental moiré projection analysis, demonstrating that the FEM numerical analysis can be used to evaluate the biomechanical behavior of healthy and endodontically treated teeth. Developing an alternative protocol to generate FEM three-dimensional models will lead to a ready and inexpensive tool since there is no need for costly equipment for tooth extraction prognosis.

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Effect of restorative treatment with endocrown and ferrule on the mechanical behavior of anterior endodontically treated teeth: An in vitro analysis

Cited by 21 publications

References 33 publications

Fracture strength and failure load of CAD/CAM fabricated endocrowns performed with different designs

Fracture strength and failure load of CAD/CAM fabricated endocrowns performed with different designs

Restaurações endocrown: uma revisão de literatura

The Restored Premolars Biomechanical Behavior: FEM and Experimental Moiré Analyses

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