A study of the radiographic appearance of osseous defects on panoramic and conventional films

Phillips, James D.; Shawkat, A.H.

doi:10.1016/0030-4220(73)90148-5

Cited by 12 publications

(5 citation statements)

References 5 publications

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“…Multiple investigators have found that the radiographic detection of experimental periapical lesions depends on the visualization of destruction of the bony cortex adjacent to the tooth (Duinkerke et al, 1975;Manson-Hing, 1971;Phillips and Shawkat, 1973;Bender and Seltzer, 1961 a and b;Schwartz and Foster, 1971). The recent availability of xeroradiography (Jeromin et al, 1980;Gratt et al, 1980 b) and Kodak Ektaspeed film (Silha, 1981 a and b) offers the possibility that either of these alternative imaging systems might offer diagnostic sensitivity either the same as or greater than that of Kodak Ultraspeed film for the radiographic detection of periapical lesions.…”

Section: Introductionmentioning

confidence: 97%

Clinical Science Comparison of Xeroradiographs and Film for Detection of Periapical Lesions

White¹,

Hollender

Gratt³

1984

J Dent Res

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Xeroradiographs and Kodak Ektaspeed film were compared with Kodak Ultraspeed film for their ability to reveal periapical lesions. Cadaver specimens containing teeth which were normal or demonstrated periapical inflammatory disease were used as the test objects. These specimens were first radiographed using xeroradiographic plates or film. Following radiography, histologic analysis revealed the true presence or absence of disease. Ten oral radiologists scored all xeroradiographic and film images of the specimens for the presence of periapical disease. In general, the observers detected about 70% of the cases with periapical disease, while simultaneously considering about 10 to 15% of the normal surfaces to be abnormal. Receiver-operating-characteristic (ROC) analysis of the radiographic decisions revealed little difference in the diagnostic performance of the observers using the various image receptors, although both types of film and low-contrast xeroradiographs viewed in transmitted light were all more useful than low-contrast xeroradiographs viewed in reflected light. In terms of patient dose, both xeroradiographic images and Ektaspeed film are preferred over Ultraspeed film.

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Section: Introductionmentioning

confidence: 97%

Clinical Science Comparison of Xeroradiographs and Film for Detection of Periapical Lesions

White¹,

Hollender

Gratt³

1984

J Dent Res

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“…Simulated bone lesions have been widely used to compare radiological techniques for bone observation 5,17,20,21,22,24,29 , and are already in use to test the accuracy of CBCT protocols 23 . Pinsky, et al 23 (2006) used simulated lesions to test linear measurements in CBCT, but they made 4-8-mm defects, which are larger than those prepared in the present work.…”

Section: Discussionmentioning

confidence: 99%

“…However, the examinations can be disturbed by serious artifacts caused by metallic fillings in teeth 2,6,16,18,19,25,27,30 . Many authors have already used simulated bone lesions in the jaws to compare conventional radiographic techniques 5,17,22 , and also more recently in singleslice CT 20,21,24 and cone beam computed tomography (CBCT) 23 .…”

Section: Introductionmentioning

confidence: 99%

Influence of dental metallic artifact from multislice CT in the assessment of simulated mandibular lesions

et al. 2010

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ObjectiveThis study evaluated the influence of metallic dental artifacts on the accuracy of simulated mandibular lesion detection by using multislice technology.Material and MethodsFifteen macerated mandibles were used. Perforations were done simulating bone lesions and the mandibles were subjected to axial 16 rows multislice CT images using 0.5 mm of slice thickness with 0.3 mm interval of reconstruction. Metallic dental restorations were done and the mandibles were subjected again to CT in the same protocol. The images were analyzed to detect simulated lesions in the mandibles, verifying the loci number and if there was any cortical perforation exposing medullar bone. The analysis was performed by two independent examiners using e-film software.ResultsThe samples without artifacts presented better results compared to the gold standard (dried mandible with perforations). In the samples without artifacts, all cortical perforation were identified and 46 loci were detected (of 51) in loci number analysis. Among the samples with artifacts, 12 lesions out of 14 were recognized regarding medullar invasion, and 40 out of 51 concerning loci number. The sensitivity in samples without artifacts was 90% and 100% regarding loci number and medullar invasion, respectively. In samples with artifacts, these values dropped to 78% and 86%, respectively. The presence of metallic restorations affected the sensitivity values of the method, but the difference was not significant (p>0.05).ConclusionAlthough there were differences in the results of samples with and without artifacts, the presence of metallic restoration did not lead to misinterpretation of the final diagnosis. However, the validity of multislice CT imaging in this study was established for detection of simulated mandibular bone lesions.

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“…Even if intraoral films appear to be more accurate, Gòmez‐Romàn et al (1996, 1999) found no significant difference in the accuracy of measurement between these techniques. Oba & Katayama (1972) and Phillips & Shawkat (1973) even suggest that panoramic radiographs might be preferable. Moreover, Gòmez‐Romàn et al (1999) demonstrated that measurements aided by digital image processing methods are reliable and achieve a higher degree of precision than the visual metric method.…”

Section: Discussionmentioning

confidence: 99%

Mandibular two‐implant telescopic overdentures

Heckmann

Schrott

Graef

et al. 2004

Clinical Oral Implants Res

107

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To stabilize mandibular overdentures in edentulous patients, various connector types which can be attached to between two and four implants placed in the anterior mandible are possible. Treatment using non-rigid telescopic connectors on two interforaminal implants for overdenture stabilization began in 1989. The objective of this study is to investigate soft- and hard-tissue conditions as well as prosthesis function after a period of 10 years. This also involved an evaluation of correlations between radiographic and clinical parameters. Twenty-three subjects with 46 interforaminal implants (ITI solid screw implants, 12 mm in length, 4.1 mm in diameter; 10.4 years in situ, range, 8-12.8 years) were investigated. Modified plaque index (mPI), sulcus fluid flow rate (SFFR), modified sulcus bleeding index (mBI), probing depth (PD), distance from implant crown margin to the coronal border of the peri-implant mucosa (DIM), attachment level (AL), width of keratinized mucosa (KM), Periotest values (PTVs) and prosthesis function were evaluated. In the radiographic evaluation, the distance between implant shoulder and first crestal bone-implant contact (DIB) in mm and the horizontal bone loss (HBL) in mm were measured. The relatively high mPI scores (mean, 0.82; score, 0 in 44.4%; SD, 0.83) did not result in increased SFFR scores (mean, 12; min, 3, max, 38; SD, 7.43) or higher mBI scores (mean, 0.35; score, 0 in 70.8%; SD, 0.59), which was commensurate with healthy peri-implant mucosa. A mean PD value of 2.15 mm (min, 1 mm; max, 5 mm; SD, 0.96) and a mean DIM value of 0.28 mm (min, 0 mm; max, 2 mm; SD, 0.52) were measured. The implants were stable, showing a mean Periotest value of -1.91 (max, 02, min, -6; SD, 1.76). A mean DIB of 3.19+/-0.95 mm (range, 1.3-5.16 mm) and a mean HBL of 1.6+/-1.52 mm (range, 0.28-8.33 mm) were calculated. A correlation was found between DIB and the parameters SFFR (P=0.060), DIM (P=0.042), AL (P=0.050) and especially PTV (P<0.01), leading to the assumption that these clinical parameters may be useful indicators of peri-implant bone loss. The results of the 10-year follow-up examination show that non-rigid telescopic connectors with two interforaminal implants for overdenture stabilization appear to be an efficient and effective long-term treatment modality in severely resorbed edentulous mandibles. Particularly in geriatric patient treatment this concept may provide advantages in terms of handling, cleaning and long-term satisfaction.

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A study of the radiographic appearance of osseous defects on panoramic and conventional films

Cited by 12 publications

References 5 publications

Clinical Science Comparison of Xeroradiographs and Film for Detection of Periapical Lesions

Clinical Science Comparison of Xeroradiographs and Film for Detection of Periapical Lesions

Influence of dental metallic artifact from multislice CT in the assessment of simulated mandibular lesions

Mandibular two‐implant telescopic overdentures

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