Utilizacion de imagenologia bidimensional y tridimensional con fines Odontologicos

Revista de la Asociacion Dental Mexicana 01/2012; 19(3):114-9..


Las radiografías tradicionales bidimensionales se han utilizadocomúnmente en todas las áreas de la odontología. Con la llegada de la imagenología tridimensional (3D) como alternativa, se han explotado una serie de posibilidades en el área de la investigacióny las especialidades odontológicas, principalmente en Cirugía Oral y Máxilofacial, Periodoncia, Prostodoncia (Implantología), así como también en Ortodoncia y Endodoncia. Este estudio pretende describir y comparar ambos sistemas radiológicos. Se concluyó que la imagen 3D es superior por su precisión, sin embargo su aún alto costo evita que se adopte como norma. Palabras clave: radiología, radiografía, 3D, tridimensional, ortopantomografía, cefalometrías, Implantología, tecnología dental.

Abstract. Traditional two-dimensional X-rays have long since been used in all areas of dentistry. With the advent of three-dimensional (3D) imaging as an alternative, a number of dental procedures have exploited the latter's potential, particularly in procedures relating to orthodontics, endodontics, and implantology, as well as in the field of research. This study aims to describe and compare both imaging systems. The conclusion drawn is that 3D imaging is superior due to its accuracy;however its high cost prevents its widespread adoption.

Download full-text


Available from: Kelvin I. Afrashtehfar, Oct 02, 2015
139 Reads
  • [Show abstract] [Hide abstract]
    ABSTRACT: The orthopantomogram is in popular use in orthodontic diagnosis and monitoring treatment progress. Being a laminographic-type radiograph, its image suffers from a variable degree of linear distortion and this has limited its use as a research tool. A wire-mesh frame shaped to represent the curvature of the dentition in the jaws, with lead shots representing the long axes of the teeth as well as certain skeletal landmarks, was used to investigate the accuracy of projection of its structures on to the X-ray film of the orthopantomograph. Angular parameters were used to identify and assess both the magnitude and distribution of angular distortion of the radiographic image. The canine--premolar region of both arches expressed the greatest amount of angular distortion and variability. The third molar regions, together with the landmarks projected at a lower level on the radiograph, were the least variable. The applications and implications of the findings are discussed.
    British journal of orthodontics 05/1984; 11(2):100-7. DOI:10.1093/ejo/11.2.100
  • Source
    New England Journal of Medicine 12/2007; 357(22):2277-84. DOI:10.1056/NEJMra072149 · 55.87 Impact Factor
  • [Show abstract] [Hide abstract]
    ABSTRACT: This study was carried out to observe the teeth of the maxillary and mandibular bones in computerized tomographic (CT) scans. In addition to using CT images, a 3-dimensional analysis was conducted for further visualization. The anatomical configurations of the teeth were clearly observed in the CT scans, as was the relation of the teeth to the periodontal tissues. Further, using CT scans made it possible to determine buccolingual and mesiodistal widths of teeth, and the presence or absence of root canal filling materials and metal posts. In addition, carious lesions of a certain size and expansions of the maxillary sinus and proximity to the roots were observed. The 3-dimensional image analysis was interesting, but detailed observations could not be made with this technique.
    Endodontics & dental traumatology 03/1990; 6(1):16-20. DOI:10.1111/j.1600-9657.1990.tb00381.x
Show more