Characteristics of intrabony nerve canals in mandibular interforaminal region by using cone-beam computed tomography and a recommendation of safe zone for implant and bone harvesting.
Clin Implant Dent Relat Res
; 19(3): 530-538, 2017 Jun.
Article
em En
| MEDLINE
| ID: mdl-28374431
ABSTRACT
BACKGROUND:
Cone-beam computed tomography can accurately show anatomic structure of intrabony nerve canals in mandibular interforaminal region.PURPOSE:
The aim was to evaluate the characteristics of intrabony nerve canals in mandibular interforaminal region by using cone-beam computed tomography (CBCT) and determine a safe zone for implant and bone harvesting. MATERIALS ANDMETHODS:
Hemimandibles (824) CBCT images were obtained. The length of the anterior loop (AL), the length and diameter of the mandibular incisive canal (MIC) and its spatial distance in various landmarks were measured.RESULTS:
The prevalence of the AL was 93.57%, and the MIC was 97.33%. The mean lengths of the anterior extension of the anterior loop (aAL), caudal extension of the anterior loop (cAL) and the MIC were 2.53 ± 1.27 mm, 6.04 ± 1.66 mm, 9.97 ± 5.15 mm, respectively. The MIC was closer to buccal border and inferior margin of mandible. The length of the AL and diameter of the MIC varied with gender.CONCLUSIONS:
The safe zone recommended for implant surgery is 4 mm anterior and 8 mm inferior to the mental foramen, and 10 mm above the inferior margin of mandible. The chin bone should be harvested at least 10 mm below the tooth apices along with a limited depth of 4 mm.Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Implantes Dentários
/
Transplante Ósseo
/
Coleta de Tecidos e Órgãos
/
Tomografia Computadorizada de Feixe Cônico
/
Nervo Mandibular
Tipo de estudo:
Risk_factors_studies
Limite:
Adolescent
/
Adult
/
Aged
/
Aged80
/
Child
/
Female
/
Humans
/
Male
/
Middle aged
Idioma:
En
Revista:
Clin Implant Dent Relat Res
Assunto da revista:
ODONTOLOGIA
Ano de publicação:
2017
Tipo de documento:
Article
País de afiliação:
China