A comprehensive in vitro study of image accuracy and quality for periodontal diagnosis. Part 2: the influence of intra-oral image receptor on periodontal measurements.
The aim of the study was to determine the image receptors' influence on exposure levels, image accuracy, and quality for periodontal diagnosis. Periodontal defects from cadaver specimens were imaged using two intra-oral conventional films (E-, F/E-speed), four indirect receptors (Digora 8 bit, Vistascan 12 bit with/without filter, Vistascan 16 bit), and two solid-state sensors (Sigma 12 bit, VistaRay 14 bit) at rising exposure (20-160 ms). Three observers assessed the standardized radiographs for alveolar bone measurements (1,732, 31 sites) and for subjective rating of lamina dura, contrast, trabecularization, crater, and furcation involvements. The measurements were compared to the gold standard. For the imaging plates, highest measurement accuracy was found with Vistascan 16 bit (100% within 0.5 mm) and for solid-state sensors with VistaRay 14 bit (100%, 0.5 mm), although the latter are mostly not significantly different. Higher contrast resolution imaging plates require up to 50% less exposure time, but for solid-state sensors, the dose remains unchanged. For the latter, a higher bit depth does seem to provide more accurate depiction of the alveolar crest, counteracting blooming artifacts. The use of a dedicated periodontal filter contributes to higher accuracy at all exposure times (p < 0.05-0.0001). Accuracy of periodontal diagnosis increases with higher contrast resolution. Digital exposure levels are thus dependent of image receptor as well as X-ray generator.
Vandenberghe
Bart
B
Oral Imaging Centre, Faculty of Medicine, Katholieke Universiteit Leuven, Kapucijnenvoer 7, 3000 Leuven, Belgium. bart.vandenberghe@med.kuleuven.be
Bosmans
Hilde
H
Yang
Jie
J
Jacobs
Reinhilde
R
D000328:Adult; D016301:Alveolar Bone Loss / Q000000981:diagnostic imaging; D000539:Alveolar Process / Q000000981:diagnostic imaging*; D016477:Artifacts; D002102:Cadaver; D002508:Cephalometry; D005374:Filtration / Q000295:instrumentation; D017823:Furcation Defects / Q000000981:diagnostic imaging; D006801:Humans; D010510:Periodontal Diseases / Q000000981:diagnostic imaging*; D019047:Phantoms, Imaging; D011829:Radiation Dosage; D011856:Radiographic Image Enhancement / Q000379:methods* / Q000592:standards; D016300:Radiography, Bitewing / Q000295:instrumentation* / Q000379:methods / Q000592:standards; D019252:Radiography, Dental, Digital / Q000295:instrumentation* / Q000379:methods / Q000592:standards; D013997:Time Factors; D014962:X-Ray Film; D014963:X-Ray Intensifying Screens
Dentomaxillofac Radiol. 2000 Nov;29(6):362-7
11114666
Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2008 Feb;105(2):239-44
17604662
Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2009 Aug;108(2):278-83
19272812
Dentomaxillofac Radiol. 2000 Mar;29(2):70-5
10808218
Br J Radiol. 2009 Jan;82(973):35-40
18852212
Dentomaxillofac Radiol. 2005 Sep;34(5):279-84
16120877
J Clin Periodontol. 1999 Aug;26(8):485-98
10450808
Dentomaxillofac Radiol. 2007 Dec;36(8):506-13
18033949
J Clin Periodontol. 2001 Sep;28(9):869-78
11493358
Dentomaxillofac Radiol. 2007 Jul;36(5):256-62
17586851
Clin Oral Investig. 2011 Aug;15(4):537-49
20443035
Dentomaxillofac Radiol. 2000 Mar;29(2):76-80
10808219
Dentomaxillofac Radiol. 2008 Oct;37(7):380-4
18812599
Aust Dent J. 1997 Oct;42(5):335-42
9409051
Clin Oral Investig. 2010 Apr;14(2):223-31
19452176
Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2000 Oct;90(4):538-45
11027393
J Am Dent Assoc. 2008 Sep;139(9):1237-43
18762634
Dentomaxillofac Radiol. 2007 Jan;36(1):7-11
17329581
J Clin Periodontol. 1997 May;24(5):306-12
9178109
Dentomaxillofac Radiol. 2007 Dec;36(8):500-5
18033948
Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2000 Mar;89(3):356-62
10710463
Br J Radiol. 1996 Mar;69(819):256-61
8800870
J Digit Imaging. 2007 Dec;20(4):422-32
17195900
J Clin Periodontol. 2009 Mar;36(3):250-7
19236537
J Dent. 2000 May;28(4):219-26
10722894
Odontology. 2008 Jul;96(1):55-60
18661206
Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2007 Mar;103(3):418-22
17321456
Dentomaxillofac Radiol. 2004 Jan;33(1):1-5
15140814
J Clin Periodontol. 1999 May;26(5):294-300
10355620
Periodontol 2000. 2004;34:34-48
14717854
Dentomaxillofac Radiol. 2003 Nov;32(6):385-9
15070841
Dentomaxillofac Radiol. 2008 Jul;37(5):252-60
18606746
Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2005 Apr;99(4):485-9
15772598
Int Endod J. 2005 Sep;38(9):645-52
16104978