Accuracy of Linear Measurements with Different Cone Beam Computed Tomography
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Abstract
Objective: Dental radiography, both 2D and 3D, plays a significant role for dental examinations. Recently, 3D images (Cone-Beam Computed Tomography; CBCT) have been widespread used in dentistry. Various machines with different productions and vendors may affect the qualities and outcome of CBCT images. To study the qualities of CBCT images from different machines by using the accuracy of linear measurement method is set up for this study’s objective.
Materials and Methods: This is an in-vitro experimental study comparing the accuracy of linear measurements from two CBCT scanning machines. The 64 printing models made of polylactic acid (PLA) material were built up with actual width, length, and height as the control group. The models were scanned by two CBCT machines with same parameters and stored in medical PACS; Infinitt®. The width (A) and length (B) were measured from an axial plane and the height (H) was measured from a sagittal plane.
Results: Statistical analysis with the repeated ANOVA showed the mean differences between the actual model and CBCT images from Planmeca Viso G7® and Carestream 8100SC 3D® were 0.04 ±0.08 mm (p<0.001) and -0.15 ±0.40 mm. (p<0.001) respectively. The linear lengths measured on the two CBCT machines were significantly different.
Conclusion: The linear lengths measured on CBCT images of the Planmeca Viso G7® showed less difference from the model than those of the Carestream 8100 SC 3D.
Article Details
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บทความ ข้อมูล เนื้อหา รูปภาพ ฯลฯ ที่ได้รับการลงตีพิมพ์ในวิทยาสารทันตแพทยศาสตร์ มหาวิทยาลัยขอนแก่นถือเป็นลิขสิทธิ์เฉพาะของคณะทันตแพทยศาสตร์ มหาวิทยาลัยขอนแก่น หากบุคคลหรือหน่วยงานใดต้องการนำทั้งหมดหรือส่วนหนึ่งส่วนใดไปเผยแพร่ต่อหรือเพื่อกระทำการใด ๆ จะต้องได้รับอนุญาตเป็นลายลักษณ์อักษร จากคณะทันตแพทยศาสตร์ มหาวิทยาลัยขอนแก่นก่อนเท่านั้น
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