Macromolecular leakage beneath full cast crowns: A two-year in vitro investigation

Coleman, Allyn J.; Moses, Mark S.; Rickerby, Haig H.D.

doi:10.1067/mpr.2001.112435

Cited by 7 publications

(6 citation statements)

References 44 publications

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“…Methylene blue, basic fuchsine, fluorescent dye, crystal violet, Indian ink and eosine are the commonly used dyes in microleakage studies. 23,27,37 In the present study 0.5% aqueous basic fuchsine dye was preferred as it has the best contrast under microscope compared to other dyes.…”

Section: Ijoprdmentioning

confidence: 97%

“…This leakage causes the separation of the post from the root and is reported to be the most frequent cause of failure of post-cores. [21][22][23] Penetration of oral fluids, bacterial toxins and all kinds of ions through the interfacial space between the restoration and the tooth leads to marginal discolorations, secondary caries and marginal fractures. [24][25][26][27] Morphology of the root canal, preparation of the post space, type of post-and-core material, type of cement and its application, clinical conditions, saliva contamination in the post space, inadequate provisional restoration, thickness of residual dentin, and position of the teeth in the dental arch are reported to affect marginal leakage of cement post-and-core.…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of Coronal Microleakage in Two Different Post-Core Systems

Ayyıldız¹,

Bagci²

2011

International Journal of Prosthodontics and Restorative Dentistry

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Aims The aim of this in vitro study was to compare the cast metal and ceramic post-core systems, which have similar laboratory and clinical procedures according to coronal microleakage. Materials and methods Forty extracted maxillary anterior teeth were endodontically treated. Specimens were randomly assigned to four experimental groups (n = 10). The groups consisted of a cemented metal post-core group (CMPC), a not cemented metal post-core group (NMPC), a cemented ceramic post-core group (CZPC) and a not cemented ceramic post-core group (NZPC). A dual-cure resin cement (Panavia F) was used for both of the cemented groups. All specimens were stained with basic fuchsine and embedded in epoxy resin. Sagittal sections were obtained using a grinding machine and examined under binocular and coal microscopes. Coronal leakages were scored and data were analyzed using Kruskall-Wallis analysis of variance test. Results Results were compared between and within groups. No statistically significant differences were found between groups. Conclusion Cement alone is not sufficient to provide a barrier against microleakage in post-core restorations. The chosen post-core type or application methods may be more relevant to the leakage issue.

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Section: Ijoprdmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

Evaluation of Coronal Microleakage in Two Different Post-Core Systems

Ayyıldız¹,

Bagci²

2011

International Journal of Prosthodontics and Restorative Dentistry

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“…Leakage is the most commonly occurring event that leads to a lack of success for post cores and inducts the post and root division. 8 Marginal discolorations, fractures, and secondary caries are caused by the areas between the repairs and teeth being infiltrated by various ions forms, oral liquids, and bacterial impurities. 9 Furthermore, the range of researches that examines the luting materials leakage influence upon later endodontic failure is limited.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Coronal Micro-Leakage of Fiber Post with Different Luting Cements (In Vitro Study)

2022

ZJPAS

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Background and Objectives: This research's objective was to analyze coronal micro-leakage of fiber post using the various types of luting cements. Methods: Thirty extracted mandibular single rooted premolars underwent instrumentation with rotary protaper ® system and obturated with protaper ® gutta-percha and AH-plus ® root canal sealer. After being incubated for twenty-four hours, the post space preparation was done through the usage of the Unicore ® post drill #2 forming 8mm deep post space and the identical size of Unicore ® fiber post #2 was positioned. The samples that went through preparation were arbitrarily placed within three groups representing the three kinds of luting cement (G1: RelyX Unicem, G2: TotalCem, G3: GC Fuji I). Two layers of nail polish were placed upon the root's surfaces. However, the coronal 2mm was not painted, and the samples were individually placed within 10% black Indian ink dye for the time period of seventy-two hours. The samples underwent rinsing and removal of nail polish, after that the clearing and decalcifying of the samples were performed. One Way Analysis of Variance (ANOVA) used to test any statistically significant difference among the groups also Turkey's HSD (Honest Significant Difference) post hoc multiple comparison test used for comparison among the groups after using ANOVA test. Results:The results of the present study showed that groups luted with G1 and G2 better coronal sealing than group which luted with G3, which presented that no statistically noteworthy variances were identified among G1 and G2, but substantial variances were present among (G3) further groups. Conclusion: TotalCem ability for coronal sealing surpassed that of RelyX Unicem.

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“…A multiplicidade de estudos na literatura acerca da avaliação da microinfiltração corrobora para a inexistência de um modelo ideal 3,18,29,44,48,51,53,60 11,12,13,18,25,29,31,38,44,66,79,104,106,110 não contribui para uma análise qualitativa . 8,61,79,104,107,108,120,127,128,129…”

Section: Microinfiltração Marginalunclassified

“…Uma das maneiras utilizadas para verificar tal relação consiste na avaliação da microinfiltração marginal em função da penetração de um corante na interface dente-cimento-restauração. Porém, estudos "in vitro" ou "in vivo" mostram resultados variados entre cimentos e materiais restauradores devido a falta de padronização do corante, tempo de aplicação, técnica de avaliação empregada, presença ou não de ciclagem térmica e ou mecânica, estabelecimento de escores variados de penetração e do tipo de análise realizada na interface dente-cimento (quantitativa ou qualitativa) 11,12,13,27,34,35,43,61,66,92,97,106,107,120,127,128,141 . Como consequência, muitas dúvidas e contradições têm sido apontadas na literatura em função da dificuldade de se obter resultados semelhantes de microinfiltração, tanto "in vivo" como "in vitro".…”

Section: Introdução Introduçãounclassified

Influência da ciclagem com cargas dinâmicas na microinfiltração de coroas metalocerâmicas cimentadas com três tipos de cimento

Rossetti¹

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Dedico este trabalho, Ao meu pai, JOÃO, pela sua bravura, paciência e dedicação em superar as artimanhas do destino e por sempre acreditar e ensinar a nós, os filhos, que os percalços da vida são um estímulo às grandes conquistas. A minha mãe, ALICE, pela sua bravura, paciência e dedicação e por ensinar que é preciso ser capaz de dividir o coração com os que mais necessitam. Ao meu irmão, FERNANDO, por ser uma pessoa divertida e de bomsenso. O que falta em minha formação científica, está em você. A vitória é certa. A LEYLHA, minha amada, é profundo e infinito meu afeto por ti, assim como a brisa das manhãs que acaricia as folhas do outono. Meu coração estará sempre bem guardado junto ao teu, meu amor. A todos vocês, meu muito obrigado !!! ix à DEUS, Por me ensinar que a energia do inexplicável e do possível se unifica na aliança do homem com o espaço, onde a ciência não alcança, onde as equações e postulados tornam-se obsoletos, onde a mente não raciocina e a lógic a beira o caos. O eterno círculo da vida. Amém.

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Macromolecular leakage beneath full cast crowns: A two-year in vitro investigation

Cited by 7 publications

References 44 publications

Evaluation of Coronal Microleakage in Two Different Post-Core Systems

Evaluation of Coronal Microleakage in Two Different Post-Core Systems

Evaluation of Coronal Micro-Leakage of Fiber Post with Different Luting Cements (In Vitro Study)

Influência da ciclagem com cargas dinâmicas na microinfiltração de coroas metalocerâmicas cimentadas com três tipos de cimento

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