To compare detection of the second mesiobuccal (MB2) canal in maxillary molar teeth using cone-beam computed tomography (CBCT) with different voxel sizes against conventional radiographic examination when MB1 was unprepared, prepared and filled.Radiographic 0.2-, 0.25- 0.3-mm CBCT (n = 89) were performed 3 stages: S1, no first (MB1) preparation or filling; S2, after S3, root filling removal repreparation. Images analysed i-Cat software. After RE acquisition all samples clarified to directly...

Abstract – Objectives: This study compared the ability of conventional radiographic and cone beam computed tomography (CBCT) examinations to detect vertical root fractures (VRF) in teeth with or without canal treatment metallic posts. Furthermore, influence using different voxel sizes from CBCT images was assessed. Methodology: Sixty single‐rooted human were randomly divided into two groups: experimental control. Twenty endodontically prepared obturated gutta‐percha, twenty had a...

The purpose of this study was to evaluate the accuracy airway measurements from lateral cephalograms, cone-beam computed tomographic (CBCT) reconstructions, and CBCT axial planes, as well correlate these findings with area acquired latter imaging method. Landmarks were defined for naso- oropharynx 30 patients (12 males 18 females, mean age 17.5 years), different using linear antero-posterior corresponding area. Analysis variance showed significant differences in between two methods, although...

To examine the influence of field view (FOV) and voxel size on measurement volume simulated internal root resorption (IRR) lesions through cone-beam computed tomography (CBCT).Eleven single-rooted teeth with IRR by acid demineralization were studied. CBCT images acquired using large FOV (voxel sizes 0.200, 0.250 0.300 mm) limited 0.076, 0.100 0.200 mm). The volumes calculated Dolphin(®) software. Volumetric measurements validated silicone putty casts. analysis variance (anova) for randomized...

Abstract Aim To evaluate the impact of acquisition protocols and artifact reduction filters in cone beam computed tomography on diagnosing vertical root fractures endodontically treated teeth with without intraradicular posts. Materials Methods We analyzed 480 tomographic images acquired from two J. Morita scanners (0.125‐ 0.08‐mm voxel sizes protocols), application a blooming filter. Three evaluators assessed these for using 5‐point Likert scale. Diagnostic accuracy between was determined...

The validity of any measurement obtained through a cephalogram largely depends on the reproducibility cephalometric landmarks. purpose this study is to evaluate influence programme professional calibration (PPC) variability landmark identification comparing conventional radiographs and cone beam CT (CBCT)-synthesized cephalograms.5 graduate students in oral radiology identified 20 landmarks from cephalograms generated (RADs), Ray-Sum CBCT-synthesized (CBTs) half-skull CBT (HSTs) 10 patients....

Using different software to evaluate the airways, with thresholds, but within range for airway recognition, could yield measurements in same patient or without craniofacial disharmony.The aim of present study was compare volume and most constricted area (MCA) oropharynx individuals an open bite by using 2 programs meant cone-beam computed tomography (CBCT).This comparative included 60 cases selected from 137 CBCT scans obtained presence absence bite. Each group adults both genders - total 30...

The aim of this study was to compare cephalometric measurements obtained from conventional cephalograms with total and half-skull synthesized cone beam CT (CBCT) cephalograms.Cephalometric analyses 30 clinically symmetric patients were conducted by a calibrated examiner on CBCT-synthesized (total, right left). Reproducibility investigated using the intraclass correlation coefficient (ICC). Bland-Altman analysis used assess agreement each factor conventional, total, left cephalograms.The ICC...

No consensus exists on the assessment of airway in CBCT scans. Two-dimensional measures remain standard cephalometric analysis. This research aimed to evaluate linear and area measurements two-dimensional views from specific regions interest compare these correspondent volume exams.250-selected scans were retrospectively analyzed. A trained calibrated examiner performed linear, sites for nasal cavity, nasopharynx oropharynx compartments. Dolphin Software was used The correlations using...

Abstract Aims Studies have shown that inappropriate therapeutic strategies may be adopted if crown and root changes are misdiagnosed, potentially leading to undesirable consequences. Therefore, the aim of this study was evaluate a digital learning object, developed improve skills in diagnosing radiographic dental changes. Materials Methods The object using Visual Basic Application ( VBA ) software evaluated by 62 undergraduate students (male: 24 female: 38) taking an imaging diagnosis...

To analyze the diagnostic accuracy of conventional and digital radiographic images impact filters in evaluating bone-implant interface.Titanium implants were inserted into 74 fresh bovine ribs blocks, 37 fitting tight to bone walls (simulating existence osseointegration) with a gap 0.125 mm failure osseointegration process). Periapical radiographs taken film two phosphor plate systems [VistaScan® (Dürr Dental, Bietigheim-Bissingen, Germany) Express® (Instrumentarium, Tuusula, Finland)]....

The aims of this study were to evaluate and compare the performance dental students in interpreting temporomandibular joint (TMJ) with magnetic resonance imaging (MRI) scans using two learning methods (conventional digital interactive learning) examine usability object (DLO). DLO consisted tutorials about MRI anatomic functional aspects TMJ. In 2014, their final year who enrolled elective "MRI Interpretation TMJ" course comprised sample. After exclusions for nonattendance other reasons, 29...

Changes in the midpalatal suture and alterations intercanine intermolar widths with use of quad-helix appliance were evaluated. Study casts occlusal radiographs from 10 patients a mean age 4 years months (SD 11 months) analyzed. A statistically significant palatal widening was observed all cases. The proportion dental tipping accomplished treatment greater than opening suture.

Aim: This study evaluated the proximity and relation of impacted lower third molars mandibular canal on panoramic radiography. Methods: Radiographic signals associated with structures Pell & Gregory Winter classifications 78 teeth were analyzed compared CBCT images (gold standard). The associations between findings tested Pearson’s chi-square. Results: Direct contact was observed in 85% cases radiolucent band over roots. Conclusions: Radiolucent roots is image more direct one that indicates...

To develop and test a protective device (PD) to increase the resistance of photostimulable storage phosphor (PSP) plate compressive load, assess resulting image quality.Two prototypes, polyvinylchloride sheets 0.3 mm 0.7 each, were developed for PSP size 2. The load was tested using eight new PSPs divided into four groups: (1) PSP, (2) paperboard protector, (3) PD, (4) PD. images analyzed by three oral radiologists, based on consensus artifacts. Additionally, objective quality performed with...