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Influence of sealer and supplementary approach on filling material removal during endodontic retreatment.
Pinto, Jáder Camilo; Torres, Fernanda Ferrari Esteves; Santos-Junior, Airton Oliveira; Tavares, Karina Ines Medina Carita; Guerreiro-Tanomaru, Juliane Maria; Tanomaru-Filho, Mário.
Afiliación
  • Pinto JC; Universidade Estadual Paulista - Unesp, School of Dentistry, Department of Restorative Dentistry, Araraquara, SP, Brazil.
  • Torres FFE; Universidade Estadual Paulista - Unesp, School of Dentistry, Department of Restorative Dentistry, Araraquara, SP, Brazil.
  • Santos-Junior AO; Universidade Estadual Paulista - Unesp, School of Dentistry, Department of Restorative Dentistry, Araraquara, SP, Brazil.
  • Tavares KIMC; Universidade Estadual Paulista - Unesp, School of Dentistry, Department of Restorative Dentistry, Araraquara, SP, Brazil.
  • Guerreiro-Tanomaru JM; Universidade Estadual Paulista - Unesp, School of Dentistry, Department of Restorative Dentistry, Araraquara, SP, Brazil.
  • Tanomaru-Filho M; Universidade Estadual Paulista - Unesp, School of Dentistry, Department of Restorative Dentistry, Araraquara, SP, Brazil.
Braz Oral Res ; 38: e022, 2024.
Article en En | MEDLINE | ID: mdl-39016364
ABSTRACT
Both root canal sealer-based and supplementary protocols may influence removal of filling material during endodontic retreatment. Mesial root canals of extracted mandibular molars were prepared using HyFlex EDM 25/.08, and filled with a calcium silicate sealer (Bio-C Sealer), or an epoxy resin (AH Plus), using the single cone technique (n = 12). Retreatment was performed using ProDesign Logic (PDL) RT and PDL 35/.05. The specimens were randomly divided into two experimental groups (n = 12), and the sealers were distributed similarly. A supplementary protocol was performed with PDL 50/.01 or XP-endo Finisher. Root canal transportation and volume, in addition to the remaining filling material percentage were evaluated using high-resolution (5 µm voxel size) micro-CT. Statistical analysis was performed using t-tests (α = 0.05). Root canals filled with AH Plus presented high residual filling material (p < 0.05). Both protocols decreased residual volume of filling material in the apical third (p < 0.05). PDL 50/.01 increased the apical root canal volume (p < 0.05). No difference was observed between the systems regarding canal transportation (p > 0.05). In conclusion, AH Plus is more difficult to remove from the apical third than Bio-C Sealer. PDL 50/.01 and XP-endo Finisher enabled greater removal of filling materials in the apical third, in the retreatment of curved root canals, without promoting apical transport.
Asunto(s)

Texto completo: 1 Base de datos: MEDLINE Asunto principal: Materiales de Obturación del Conducto Radicular / Ensayo de Materiales / Retratamiento / Resinas Epoxi / Microtomografía por Rayos X Límite: Humans Idioma: En Revista: Braz Oral Res Asunto de la revista: ODONTOLOGIA Año: 2024 Tipo del documento: Article País de afiliación: Brasil

Texto completo: 1 Base de datos: MEDLINE Asunto principal: Materiales de Obturación del Conducto Radicular / Ensayo de Materiales / Retratamiento / Resinas Epoxi / Microtomografía por Rayos X Límite: Humans Idioma: En Revista: Braz Oral Res Asunto de la revista: ODONTOLOGIA Año: 2024 Tipo del documento: Article País de afiliación: Brasil