Postoperative Assessment of Incisor Dental Implants Using Cone-Beam Computed Tomography

Munetaka Naitoh; Hiromitsu Nabeshima; Hisashi Hayashi; Takehiko Nakayama; Kenichi Kurita; Eiichiro Ariji

doi:10.1563/AAID-JOI-D-09-00080

Article Contents

Abstract
Introduction
Materials and Methods
Results
Discussion
Conclusion
Abbreviations
Acknowledgments
References

Editorial Type:

Article Category: Research Article

Online Publication Date: 01 Oct 2010

Postoperative Assessment of Incisor Dental Implants Using Cone-Beam Computed Tomography

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DDS, PhD

Page Range: 377 – 384

DOI: 10.1563/AAID-JOI-D-09-00080

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Abstract

The bone configuration surrounding anterior dental implants was postoperatively assessed using cone-beam computed tomography (CBCT). In 21 patients with a mean age of 41.5 years, 36 implants placed in the incisor region were postoperatively evaluated using CBCT. The rate of bone-to-implant contact (%) was calculated. The mean rate of bone-to-implant contact on the labial side was 78.3% with and 65.3% without bone grafts. The postoperative findings of incisor implants could be assessed using CBCT.

Keywords: dental implant; bone graft; incisor region; cone-beam computed tomography; postoperative findings

Figure 1

Reconstructed 2-dimensional cone-beam computed tomography (CBCT) images of a maxillary incisor implant. Two-dimensional images of the dental implant were reconstructed using OsiriX imaging software. (a) Narrow alveolar bone on the labial side was noted, and the labial bone thickness at the central superoinferior level of the implant was 1.7 mm. (b) An alveolar bone crest on the mesiodistal side of the dental implant was identified at the level of the implant neck.

Figure 2

Schematic drawing of measurements of cone-beam computed tomography (CBCT) images. The length of the dental implant covered by labial bone (D) and the labial bone thickness at the central superoinferior level of the dental implant (W) were measured.

Figure 3

Cross-sectional cone-beam computed tomography (CBCT) images with conventional contrast (gray-scale) and binary threshold values. (a) Conventional contrast (gray-scale) image. (b) Black and white binary image.

Figure 4

Cross-sectional cone-beam computed tomography (CBCT) images of the maxillary anterior implant. (a) Thick type: the labial bone thickness at the central superoinferior level of the dental implant was 2 mm or more. (b) Hollow type: the labial bone configuration of the central incisor implant was observed as a hollow shape. (c) Resorbed type: the labial bone between the neck and apex of the incisor implant was unclear.