Efficacy of panoramic radiographs in the preoperative planning of posterior mandibular implants: a prospective clinical study of 1527 consecutively treated patients

Vazquez, Lydia; Saulačić, Nikola; Belser, Urs C.; Bernard, Jean‐Pierre

doi:10.1111/j.1600-0501.2007.01402.x

Cited by 130 publications

(130 citation statements)

References 24 publications

(38 reference statements)

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“…Thus, it can be assumed that the inter-observer agreement using digital panoramas showed good reliability. The prospective clinical study using the panoramic radiographs to evaluate the preoperative planning of posterior mandibular implants showed that panoramic radiographs appeared to be sufficient to evaluate available bone height before insertion of posterior mandibular implants when a safety margin of at least 2 mm above the mandibular canal is respected (15). Taken together, it can be concluded that panoramic radiographs showed sufficient accuracy with good interexaminer agreement.…”

Section: Discussionmentioning

confidence: 80%

The evaluation of digital panoramic radiographs taken for implant dentistry in the daily practice

Park¹

2010

Med Oral

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Objectives: This study was conducted 1/ to find out the effects of anatomical sites and implant types on the magnification and 2/ to evaluate the inter-observer variability on the evaluation using the digital panoramas taken at daily practices. Study design: Panoramic radiographs from 156 patients treated with implants were evaluated by three observers. The length was measured on the lateral aspect of the implant in 1:1 mode using image measurement program and the percent magnification was calculated. The inter-observer correlation coefficient was measured to express inter-observer variability using reliability analysis-scale. Results: The average magnification factor in the panoramic radiograph was 126.8% in the vertical plane. Location within the anatomic arch showed different magnification by a minimum of 119.4% to a maximum of 130.8%. The measurements among three examiners were well correlated showing correlation coefficient of 0.81. The differences between one side and the contralateral side were evaluated and it was shown that the differences were observed only in maxillary anterior and maxillary premolar regions. Additionally, the external non-submerged group had the highest magnification value. Conclusions: It can be concluded that digital panoramic radiographs showed sufficient accuracy and good interexaminer agreement. The radiographic magnification of implant length may be influenced by anatomical sites and implant types.

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Section: Discussionmentioning

confidence: 80%

The evaluation of digital panoramic radiographs taken for implant dentistry in the daily practice

Park¹

2010

Med Oral

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“…however, although panoramic radiography may provide underestimated bone height values, underestimating is safer than overestimating due to the risk of reaching vital structures (7). Vazquez et al (12) suggested the use of a 2 mm safe margin in the mental foramen region after the magnification image compensation when panoramic radiographs are used and Bahlis et al (13) suggested the same safety margin for surgical purposes when using periapical radiographs.…”

Section: Discussionmentioning

confidence: 99%

Accuracy of linear measurements before and after digitizing periapical and panoramic radiography images

Langlois¹,

Sampaio²,

Silva³

et al. 2011

Braz. Dent. J.

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The aim of this study was to evaluate the accuracy of linear measurements made on conventional and digitized periapical and panoramic radiographic images of dry human hemi-mandibles. images from the posterior region of 22 dry human hemi-mandibles were obtained by conventional panoramic and periapical radiography technique. Using a digital caliper, 3 vertical measurements were marked directly on the dry hemi-mandibles (reference measurements) as well as on the tracing from the conventional radiographic images of the specimens made onto acetate paper sheet: Distance 1: between the upper limit of the alveolar ridge and the lower limit at the mandible base; Distance 2: between the upper limit of the alveolar ridge and the upper limit of the mandibular canal; Distance 3: between the lower limit of the mandibular canal and the lower limit of the mandible base. next, the radiographs were digitized and the three measurements were made on the digital images using UThSCSa image Tool software. Data were analyzed statistically by one-way ANOVA (α=0.05). There was no statistically significant differences (p>0.05) between periapical and panoramic radiographs or between the measurements recorded using the digital caliper and UThSCSa software compared with dry mandible specimens for Distances 1 (p=0.783), 2 (p=0.986) and 3 (p=0.129). In conclusion, the radiographic techniques evaluated in this study are reliable for vertical bone measurements on selected areas and the UThSCa image Tool software is an appropriate measurement method.

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Section: Introductionmentioning

confidence: 99%

“…[1][2][3][4][5] Furthermore, panoramic radiographs have been reported to be sufficiently reliable to evaluate the available bone height before inserting posterior mandibular implants. [4][5][6] Image distortion, due to variations in the degree of magnification in the horizontal and vertical planes, is well described for conventional film-based panoramic radiography. [7][8][9][10][11] As direct digital panoramic machines are not significantly different from conventional panoramic units, the degree of vertical magnification due to projection geometry is similar for digital and conventional rotational panoramic radiographs.…”

Section: Introductionmentioning

confidence: 99%

Accuracy of vertical height measurements on direct digital panoramic radiographs using posterior mandibular implants and metal balls as reference objects

Vazquez¹,

Nizamaldin²,

Combescure³

et al. 2013

Dentomaxillofacial Radiology

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Objectives: Conventional panoramic radiography, a widely used radiographic examination tool in implant treatment planning, allows evaluation of the available bone height before inserting posterior mandibular implants. Image distortion and vertical magnification due to projection geometry is well described for rotational panoramic radiographs. To assess the accuracy of vertical height measurements on direct digital panoramic radiographs, implants and metal balls positioned in the posterior mandible were used as radio-opaque reference objects. The reproducibility of the measuring method was assessed by the inter-and intraobserver agreements. Methods: Direct digital panoramic radiographs, performed using a Kodak 8000C (Eastman Kodak Company, Rochester, NY), of 17 partially edentulous patients (10 females, 7 males, mean age 65 years) were selected from an X-ray database gathered during routine clinical evaluation of implant sites. Proprietary software and a mouse-driven calliper were used to measure the radiological length of 25 implants and 18 metal reference balls, positioned in mandibular posterior segments. The distortion ratio (DR) was calculated by dividing the radiological implant length by the implant's real length and the radiological ball height by the ball's real height. Results: Mean vertical DR was 0.99 for implants and 0.97 for balls, and was unrelated to mandibular sites, side, age, gender or observer. Inter-and intraobserver agreements were acceptable for both reference objects. Conclusions: Vertical measurements had acceptable accuracy and reproducibility when a software-based calibrated measurement tool was used, confirming that digital panoramic radiography can be reliably utilized to determine the pre-operative implant length in premolar and molar mandibular segments. Dentomaxillofacial Radiology (

show abstract

Efficacy of panoramic radiographs in the preoperative planning of posterior mandibular implants: a prospective clinical study of 1527 consecutively treated patients

Cited by 130 publications

References 24 publications

The evaluation of digital panoramic radiographs taken for implant dentistry in the daily practice

The evaluation of digital panoramic radiographs taken for implant dentistry in the daily practice

Accuracy of linear measurements before and after digitizing periapical and panoramic radiography images

Accuracy of vertical height measurements on direct digital panoramic radiographs using posterior mandibular implants and metal balls as reference objects

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