CBCT

Three-dimensional evaluation of dental movement in orthodontics [Valutazione tridimensionale del movimento dentale in ortodonzia]

OBJECTIVES The aim of this study is to evaluate three-dimensionally the dental movement of impacted palatally canines, following an opercolectomy performed by laser. We also monitored patients with both digital and conventional method, with the purpose of evaluating the accuracy and validity of the monitoring methods compared. MATERIALS AND METHODS We analyzed 10 patients, 5 with double inclusion and 5 with single inclusion, for a total of 15 canines, impacted in the palatal site, were considered.

New 3D cone beam CT imaging parameters to assist the dentist in treating patients with Osteogenesis Imperfecta

(1) Background: The aim of the work is to identify some imaging parameters in osteogenesis imperfecta to assist the dentist in the diagnosis, planning, and orthodontic treatment of Osteogenesis Imperfecta (OI) using 3D cone beam Computed Tomography (CBCT) and the Double Energy X-ray Absorptiometry (DEXA) technique. (2) Methods: 14 patients (9 males and 5 females; aged mean ± SD 15 ± 1.5) with a clinical-radiological diagnosis of OI were analyzed and divided into mild and moderate to severe forms.

Root and root canal morphology differences between genders: A Comprehensive in-vivo CBCT Study in a Saudi Population

Objectives: To comprehensively explore the differences of all maxillary and mandibular permanent teeth in relation to number of roots, number of root canals, and root canal configuration between both genders in a Saudi Arabian population. Methods: This retrospective radiographic study comprised 208 subjects (48% males and 52% females) with a mean age 28.74±9.56 years. The CBCT images of the recruited subjects were evaluated for all permanent teeth. A careful examination was obtained by optimal visualization using all the software features.

Root canal morphology of lower lateral incisors: a CBCT in vivo study [Morfologia del sistema endodontico negli incisivi inferiori: uno studio in vivo attraverso la tomografia computerizzata cone beam]

Obiettivo: lo scopo del presente studio è analizzare la
morfologia endodontica degli incisivi laterali inferiori utilizzando la tomografia computerizzata cone
beam (CBCT).
Metodologia: sono stati presi in esame 500 incisivi
inferiori provenienti dalle scansioni CBCT di 250 pazienti, precedentemente effettuate per motivazioni diagnostiche e di trattamento. Sono stati esaminati i seguenti
parametri: numero di radici, configurazione del sistema
endodontico, presenza di confluenze apicali, distanza

C-shaped canal configuration in mandibular premolars and molars: prevalence, correlation, and differences: an In Vivo study using cone-beam computed tomography

Aims: To evaluate the prevalence, correlation, and differences of C-shaped canal morphology in mandibular premolars and molars by means of cone-beam computed tomography (CBCT). Materials and Methods: A total of 1433 mandibular premolars and molars CBCT scans from the Saudi population were evaluated. Axial sections of the roots were acquired at coronal, middle, and apical levels to evaluate C-shaped canals types. The prevalence, correlation, differences of C-shaped canals, bilateral/unilateral presence, gender differences, and location of external grooves on roots were assessed.

Unilateral condylar hyperplasia: a comparison with two open-source softwares

Unilateral condylar hyperplasia (UCH) is a condyle disorder that arises due to osteoblastic hyperactivity, resulting in facial asymmetry, malocclusion and dysfunction. Authors, in this retrospective study, compared "gold standard" manual-segmentation with a "semi-manual one" using 2 kinds of open-source software (Horos and ITK-SNAP; Penn Image Computing and Science Laboratory) to calculate volume of 80 UCH condyles (40 patients). Moreover, volumetric differences between affected condyle and unaffected 1, between males and females, ages, and classification type were also analyzed.

The role of 3D printing technology as an additional tool in unilateral condylar hyperplasia surgical planning

The purpose of this study is to evaluate whether additive manufactory technology through the use of 3D mandible and skull cast models can provide additional support to the virtual surgical planning for patients affected by unilateral condylar hyperplasia (UCH). This study describes 2 patients affected by active UCH. Cone beam computed tomography (CBCT) scans were converted in STL files and then sent to a 3D printer that provided 3D cast models of patient’s mandible and skull. Surgical planning was conducted performing linear measurement both on 3D virtual images and on 3D cast models.

Role of imaging in allergic rhinology

Rhinitis is an underestimated clinical condition, which has a considerable impact on the quality of life of the affected patients. The subject of this review focuses on three fundamental aspects: the development of knowledge concerning anatomic landmarks, the development of radiological imaging technology, and developments that can make a difference in the treatment of allergic rhinitis. The anatomical study of paranasal sinuses has been conducted since the time of the ancient Egyptians.

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