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Fracture resistance of weakened roots restored with relined or milled CAD-CAM glass fiber posts.
Maia, Belizane das Graças Oliveira; Santos, Thais da Silva Alves; Carvalho, Cláudio Antonio Talge; Verner, Francielle Silvestre; Junqueira, Rafael Binato.
Afiliação
  • Maia BDGO; Health Applied Sciences Master Program, Federal University of Juiz de Fora.
  • Santos TDSA; Department of Restorative Dentistry, Endodontic Division, São Paulo State University (Unesp), Institute of Science and Technology.
  • Carvalho CAT; Department of Restorative Dentistry, Endodontic Division, São Paulo State University (Unesp), Institute of Science and Technology.
  • Verner FS; Health Applied Science Program and Department of Dentistry, Federal University of Juiz de Fora.
  • Junqueira RB; Health Applied Science Program and Department of Dentistry, Federal University of Juiz de Fora.
Dent Mater J ; 42(1): 92-98, 2023 Jan 31.
Article em En | MEDLINE | ID: mdl-36351602
ABSTRACT
This in vitro study compared the fracture resistance of weakened roots restored with milled or relined glass fiber post (GFP). Seventy bovine incisors were divided into seven groups, according to the weakening protocol (none control; medium-weakened MW; highly-weakened HW) and post anatomization technique (non-relined, relined with Bulk Fill or Z350 resin; milled GFP M). Roots were thermomechanical cycled and submitted to compression. Frequencies and groups were compared by the chi-square test and two-factor ANOVA, Tukey's, and t-test (α=5%). The HW-M obtained the lowest values, showing significant differences compared to all groups (p<0.001). The highest value was HW-Bulk fill, with significant difference compared to MW-M (p=0.037) and HW-M (p<0.001). The frequency of repairable fractures was 100% in the control, 87%, and 63% in the MW and HW, respectively. Relined or milled GFPs can be considered to rehabilitate weakened teeth since failure patterns were predominantly repairable in all groups.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Fraturas dos Dentes / Técnica para Retentor Intrarradicular Limite: Animals Idioma: En Revista: Dent Mater J Ano de publicação: 2023 Tipo de documento: Article

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Fraturas dos Dentes / Técnica para Retentor Intrarradicular Limite: Animals Idioma: En Revista: Dent Mater J Ano de publicação: 2023 Tipo de documento: Article