title: Reliability of linear distance measurement for dental implant length with standardized periapical radiographs.
abstract: The purpose of this study was to investigate the accuracy of distance measurements of implant length based on periapical radiographs compared with that of other modalities. We carried out an experimental trial to compare precision in distance measurement. Dental implant fixtures were buried in the canine and first molar regions. These were then subjected to periapical (PE) radiography, panoramic (PA) radiography, conventional (CV) and medical computed (CT) tomography. The length of the implant fixture on each film was measured by nine observers and degree of precision was statistically analyzed. The precision of both PE radiographs and CT tomograms was closest at the highest level. Standardized PE radiography, in particular, was superior to CT tomography in the first molar region. This suggests that standardized PE radiographs should be utilized as a reliable modality for longitudinal and linear distance measurement, depending on implant length at local implantation site.
authors.affiliation: Department of Oral and Maxillofacial Radiology, Tokyo Dental College, Japan.
authors.forename: Mamoru
authors.initials: M
authors.lastname: Wakoh
authors.forename: Takuya
authors.initials: T
authors.lastname: Harada
authors.forename: Takamichi
authors.initials: T
authors.lastname: Otonari
authors.forename: Mika
authors.initials: M
authors.lastname: Otonari-Yamamoto
authors.forename: Mai
authors.initials: M
authors.lastname: Ohkubo
authors.forename: Yuji
authors.initials: Y
authors.lastname: Kousuge
authors.forename: Norio
authors.initials: N
authors.lastname: Kobayashi
authors.forename: Shigeru
authors.initials: S
authors.lastname: Mizuta
authors.forename: Hiromi
authors.initials: H
authors.lastname: Kitagawa
authors.forename: Tsukasa
authors.initials: T
authors.lastname: Sano
mesh_terms: D001672:Biocompatible Materials; D003481:Cuspid; D003724:Dental Arch / Q000000981:diagnostic imaging; D015921:Dental Implants; D017267:Dental Prosthesis Design; D017886:Durapatite; D006801:Humans; D008334:Mandible / Q000000981:diagnostic imaging*; D008963:Molar; D016300:Radiography, Bitewing / Q000706:statistics & numerical data; D011862:Radiography, Panoramic / Q000706:statistics & numerical data; D015203:Reproducibility of Results; D014054:Tomography / Q000706:statistics & numerical data; D014057:Tomography, X-Ray Computed / Q000706:statistics & numerical data
chemical_list: D001672:Biocompatible Materials; D015921:Dental Implants; D017886:Durapatite