Why canines induce resorption of neighboring roots? An imaging correlation

Despite the explanations about the mechanisms and reasons why dental follicles of unerupted maxillary canines do not cause root resorption in neighboring teeth, questions remain about the time expected for this event and the lack of protocols for preventive clinical management, which may serve as insights for further studies. Here, these mechanisms are correlated with imaging findings of CT scans and 3D reconstructions of a typical clinical case.

Keywords:
Root resorption; Dental follicle; Unerupted teeth; Impacted canines

Authorship

Alberto Consolaro

Universidade de São Paulo, Faculdade de Odontologia de Ribeirão Preto, Programa de Pós-Graduação de Odontopediatria (Ribeirão Preto/SP, Brazil). Universidade de São PauloBrazilRibeirão Preto, SP, Brazil Universidade de São Paulo, Faculdade de Odontologia de Ribeirão Preto, Programa de Pós-Graduação de Odontopediatria (Ribeirão Preto/SP, Brazil).

Universidade de São Paulo, Faculdade de Odontologia de Bauru (Bauru/SP, Brazil).Universidade de São PauloBrazilBauru, SP, Brazil Universidade de São Paulo, Faculdade de Odontologia de Bauru (Bauru/SP, Brazil).

https://orcid.org/0000-0002-5902-5646

Omar Hadaya

Private practice (Maringá/PR, Brazil). Private practice (Maringá/PR, Brazil). BrazilMaringá, PR, Brazil Private practice (Maringá/PR, Brazil).

https://orcid.org/0000-0002-5973-2543

Taisa Maeshiro Estorce

Universidade de Guarulhos, Curso de Especialização em Ortodontia (Guarulhos/SP, Brazil).Universidade de GuarulhosBrazilGuarulhos, SP, Brazil Universidade de Guarulhos, Curso de Especialização em Ortodontia (Guarulhos/SP, Brazil).

https://orcid.org/0000-0002-7500-292X

Contact address:
Alberto Consolaro E-mail: consolaro@uol.com.br

Conception or design of the study: AC. Data acquisition, analysis or interpretation: AC, OH, TME. Writing the article: AC, OH, TME. Critical revision of the article: AC, OH, TME. Final approval of the article: AC, OH, TME. Overall responsibility: OH, TME.

SCIMAGO INSTITUTIONS RANKINGS

Private practice (Maringá/PR, Brazil). Private practice (Maringá/PR, Brazil). BrazilMaringá, PR, Brazil Private practice (Maringá/PR, Brazil).

Figures

Figures (5)

Thumbnail

Figure 1
Radiographic reconstruction showing region of unerupted canine between maxillary lateral incisor and first premolar, in special position of canine crown, close to canine roots. Radiolucent (hypodense) area around canine crown extending from periodontal space of neighboring roots (arrows). Space measures same as canine mesiodistal width, but is not large enough for dental follicle.

Thumbnail

Figure 2
Buccal view of 3D reconstruction of maxillary canine region in same patient as in Figure 1. Hypodense pericoronal space extends from periodontal space of neighboring roots, and root surfaces of both teeth are irregular (arrows). Space measures same as canine mesiodistal width, but is not large enough for dental follicle.

Thumbnail

Figure 3
Palatal view of 3D reconstruction of maxillary canine region in same patient as in Figure 2. Hypodense pericoronal space extends from periodontal space of neighboring roots, and root surfaces of both teeth are irregular (arrows).

Thumbnail

Figure 4
Occlusal view of 3D reconstruction of maxillary canine region in same patient as in Figure 3. Hypodense pericoronal space is clearly restricted in this region (arrow).

Thumbnail

Figure 5
Axial CT scans of cervical third of impacted maxillary canine of same patient as in Figures 1 to 4. Hypodense pericoronal space extends from periodontal spaces of neighboring tooth roots (white arrows) with slightly irregular surfaces, indicative of incipient external root resorption (red arrows). Space measures same as canine mesiodistal width, but is not large enough for dental follicle, and death of cementoblastic cells exposes region to osteoclasts.

Figure 1 Radiographic reconstruction showing region of unerupted canine between maxillary lateral incisor and first premolar, in special position of canine crown, close to canine roots. Radiolucent (hypodense) area around canine crown extending from periodontal space of neighboring roots (arrows). Space measures same as canine mesiodistal width, but is not large enough for dental follicle.

Figure 2 Buccal view of 3D reconstruction of maxillary canine region in same patient as in Figure 1. Hypodense pericoronal space extends from periodontal space of neighboring roots, and root surfaces of both teeth are irregular (arrows). Space measures same as canine mesiodistal width, but is not large enough for dental follicle.

Figure 3 Palatal view of 3D reconstruction of maxillary canine region in same patient as in Figure 2. Hypodense pericoronal space extends from periodontal space of neighboring roots, and root surfaces of both teeth are irregular (arrows).

Figure 4 Occlusal view of 3D reconstruction of maxillary canine region in same patient as in Figure 3. Hypodense pericoronal space is clearly restricted in this region (arrow).

Figure 5 Axial CT scans of cervical third of impacted maxillary canine of same patient as in Figures 1 to 4. Hypodense pericoronal space extends from periodontal spaces of neighboring tooth roots (white arrows) with slightly irregular surfaces, indicative of incipient external root resorption (red arrows). Space measures same as canine mesiodistal width, but is not large enough for dental follicle, and death of cementoblastic cells exposes region to osteoclasts.

How to cite

copy

Dental Press International Av. Luís Teixeira Mendes, 2712 , 87015-001 - Maringá - PR, Tel: (55 44) 3033-9818 - Maringá - PR - Brazil
E-mail: artigos@dentalpress.com.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

Why canines induce resorption of neighboring roots? An imaging correlation

PlumX

Mensagem

[1] Contact address:
Alberto Consolaro E-mail: consolaro@uol.com.br