Este relato descreve dois casos de remoção de fragmentos de instrumentos de terços apicais de canais radiculares utilizando um extrator personalizado e técnica da agulha modificada, respectivamente. No Caso 1, um extrator foi fabricado para remover fragmento de broca localizado no terço apical do canal radicular de um incisivo central superior. O uso deste extrator permitiu a remoção bem sucedida e conservadora do fragmento de instrumento. No Caso 2, uma agulha para anestesia modificada foi utilizada como um trépano para ganhar acesso ao redor de um fragmento de instrumento localizado na porção apical curva do canal mésio-vestibular de um molar inferior. Um segmento de fio de aço foi inserido no lúmen da agulha para envolver o fragmento metálico, permitindo sua remoção com rotação no sentido anti-horário e simultâneo movimento de retração. Métodos alternativos e criativos são úteis para a remoção intracanal de fragmentos metálicos durante o tratamento endodôntico.

Autoria

Manoel Brito-Júnior

Department of Dentistry, UNIMONTES - State University of Montes Claros, Montes Claros, MG, Brazil UNIMONTES - State University of Montes ClarosBrazilMontes Claros, MG, BrazilDepartment of Dentistry, UNIMONTES - State University of Montes Claros, Montes Claros, MG, Brazil

João Américo Normanha

Carla Cristina Camilo

André Luis Faria-e-Silva

Department of Dentistry, School of Dentistry, UFS - Federal University of Sergipe, Aracaju, SE, Brazil UFS - Federal University of SergipeBrazilAracaju, SE, BrazilDepartment of Dentistry, School of Dentistry, UFS - Federal University of Sergipe, Aracaju, SE, Brazil

Paulo César Saquy

Maria Ãngela Arêa Leão Ferraz

³UESPI - Piauí State University, Teresina, Piauí, Brazil UESPI - Piauí State UniversityBrazilTeresina, Piauí, Brazil³UESPI - Piauí State University, Teresina, Piauí, Brazil

Yara Teresinha Correa Silva-Sousa

Correspondence: Prof. Dr. Manoel Brito-Júnior, Campus Universitário Prof. Darcy Ribeiro, Caixa Postal 126, Vila Mauricéia 39401-089 Montes Claros, MG, Brasil. Tel: +55-38-3229-8284. e-mail: manoelbritojunior@gmail.com

SCIMAGO INSTITUTIONS RANKINGS

³UESPI - Piauí State University, Teresina, Piauí, Brazil UESPI - Piauí State UniversityBrazilTeresina, Piauí, Brazil³UESPI - Piauí State University, Teresina, Piauí, Brazil

Figuras

Figuras (4)

Thumbnail

Figure 1.
Sequence of fragment removal in case 1. A: A radiograph provided by the patient showing the condition of the maxillary left central incisor immediately after trauma 1 year previously. B: Preoperative radiograph showing the presence of two metallic fragments in the root canal. C: Removal of the smaller fragment. D: Attempt to remove the larger fragment using two files. E: Photograph of the cast customized extractor. F: Schematic illustration showing the insertion of Hedström files into the extractor to engage the fragment. G: Removal of the larger apical fragment using the customized extractor. H: Radiograph of the maxillary left central incisor after fragment removal. I: Radiograph obtained after root canal filling.

Thumbnail

Figure 2.
Schematic illustration demonstrating the manufacture of the cast customized extractor used in the Case 1

Thumbnail

Figure 3.
Sequence of fragment removal in case 2. A: Radiograph of tooth #36 showing the presence of a fixed prosthesis with poor marginal adaptation of the crown and proximity of the pulp horns. B: Radiograph showing the presence of an instrument fragment in the mesiobuccal canal of provisionally restored tooth #36. C: Bypassing of the fragment with a size 15 K file. (D and E) Insertion of the needle tip into the root canal to involve the fragment. F: Radiograph showing the fragment attached to the needle lumen. G: Radiograph of tooth #36 with a provisional restoration after fragment removal. H: Post-obturation radiograph.

Thumbnail

Figure 4.
Modification of a 25-gauge injection needle to permit fragment removal in the case 2. A: Injection needle. B: The base of the needle was removed to facilitate wire insertion and the tip was reduced with a carborundum cutting disc. C: Modified tip. D: The bevelling procedure. E: The bevelled tip. F: A steel wire with a ring to facilitate handling. G: Introduction of the wire into the needle lumen, with a file fragment attached to the needle tip.

Figure 1. Sequence of fragment removal in case 1. A: A radiograph provided by the patient showing the condition of the maxillary left central incisor immediately after trauma 1 year previously. B: Preoperative radiograph showing the presence of two metallic fragments in the root canal. C: Removal of the smaller fragment. D: Attempt to remove the larger fragment using two files. E: Photograph of the cast customized extractor. F: Schematic illustration showing the insertion of Hedström files into the extractor to engage the fragment. G: Removal of the larger apical fragment using the customized extractor. H: Radiograph of the maxillary left central incisor after fragment removal. I: Radiograph obtained after root canal filling.

Figure 2. Schematic illustration demonstrating the manufacture of the cast customized extractor used in the Case 1

Figure 3. Sequence of fragment removal in case 2. A: Radiograph of tooth #36 showing the presence of a fixed prosthesis with poor marginal adaptation of the crown and proximity of the pulp horns. B: Radiograph showing the presence of an instrument fragment in the mesiobuccal canal of provisionally restored tooth #36. C: Bypassing of the fragment with a size 15 K file. (D and E) Insertion of the needle tip into the root canal to involve the fragment. F: Radiograph showing the fragment attached to the needle lumen. G: Radiograph of tooth #36 with a provisional restoration after fragment removal. H: Post-obturation radiograph.

Figure 4. Modification of a 25-gauge injection needle to permit fragment removal in the case 2. A: Injection needle. B: The base of the needle was removed to facilitate wire insertion and the tip was reduced with a carborundum cutting disc. C: Modified tip. D: The bevelling procedure. E: The bevelled tip. F: A steel wire with a ring to facilitate handling. G: Introduction of the wire into the needle lumen, with a file fragment attached to the needle tip.

Como citar

copiar

Fundação Odontológica de Ribeirão Preto Av. do Café, S/N, 14040-904 Ribeirão Preto SP Brasil, Tel.: (55 16) 3602-3982, Fax: (55 16) 3633-0999 - Ribeirão Preto - SP - Brazil
E-mail: bdj@forp.usp.br

Acompanhe os números deste periódico no seu leitor de RSS

Versão para download de PDF

PDF

Inglês

Versões e tradução automática

Versão original do texto

English

Tradução automática

Google Translator
Microsoft Translator

Como citar

RIS

BIBTEX

Outros formatos de citação e exportação:

SciELO - Scientific Electronic Library Online
Rua Dr. Diogo de Faria, 1087 – 9º andar – Vila Clementino 04037-003 São Paulo/SP - Brasil
E-mail: scielo@scielo.org

Leia a Declaração de Acesso Aberto

Métricas

Mensagem

[1] Correspondence: Prof. Dr. Manoel Brito-Júnior, Campus Universitário Prof. Darcy Ribeiro, Caixa Postal 126, Vila Mauricéia 39401-089 Montes Claros, MG, Brasil. Tel: +55-38-3229-8284. e-mail: manoelbritojunior@gmail.com