Abstract
OBJECTIVES:This research evaluated detail registration in peri-implant bone using two different cone beam computer tomography systems and a digital periapical radiograph.METHODS:Three different image acquisition protocols were established for each cone beam computer tomography apparatus, and three clinical situations were simulated in an ex vivo fresh pig mandible: buccal bone defect, peri-implant bone defect, and bone contact. Data were subjected to two analyses: quantitative and qualitative. The quantitative analyses involved a comparison of real specimen measures using a digital caliper in three regions of the preserved buccal bone – A, B and E (control group) – to cone beam computer tomography images obtained with different protocols (kp1, kp2, kp3, ip1, ip2, and ip3). In the qualitative analyses, the ability to register peri-implant details via tomography and digital periapical radiography was verified, as indicated by twelve evaluators. Data were analyzed with ANOVA and Tukey’s test (α=0.05).RESULTS:The quantitative assessment showed means statistically equal to those of the control group under the following conditions: buccal bone defect B and E with kp1 and ip1, peri-implant bone defect E with kp2 and kp3, and bone contact A with kp1, kp2, kp3, and ip2. Qualitatively, only bone contacts were significantly different among the assessments, and the p3 results differed from the p1 and p2 results. The other results were statistically equivalent.CONCLUSIONS:The registration of peri-implant details was influenced by the image acquisition protocol, although metal artifacts were produced in all situations. The evaluators preferred the Kodak 9000 3D cone beam computer tomography in most cases. The evaluators identified buccal bone defects better with cone beam computer tomography and identified peri-implant bone defects better with digital periapical radiography.
Highlights
The success of rehabilitation with dental implants requires adequate preoperative planning
Cone beam computed tomography (CBCT) has become an important alternative diagnostic tool with high potential for diagnosis and treatment planning, especially for implant treatment [5], by providing three-dimensional images [6,7], which are desirable for determining buccolingual thickness and the morphology and inclination of the alveolar bone [1,4,8]
Artifacts produced by metal structures, such as titanium dental implants, represent a challenge for automatic processing using computed tomography (CT) scanner software [5,9]
Summary
The success of rehabilitation with dental implants requires adequate preoperative planning. Imaging diagnosis and planning methods frequently target the assessment of sites proposed for implant bonding, including the analysis of twodimensional conventional radiographs such as periapical, interproximal, and panoramic radiographs [1,2,3]. Cone beam computed tomography (CBCT) has become an important alternative diagnostic tool with high potential for diagnosis and treatment planning, especially for implant treatment [5], by providing three-dimensional images [6,7], which are desirable for determining buccolingual thickness and the morphology and inclination of the alveolar bone [1,4,8]. If metal, for example, in metal restorations or dental implants, is present in the tomography area, the images tend to display artifacts, which are the main cause of decreased image quality, rendering the images useless for diagnosis in some cases [9,10]
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
