Snake-Based Segmentation of Teeth from Virtual Dental Casts

Kronfeld, Thomas; Brunner, David; Brunnett, Guido
April 2010
Computer-Aided Design & Applications;2010, Vol. 7 Issue 2, p221
Academic Journal
During the past years several innovative and technological developments have been made in oral surgery. Today, digitized dental casts are common for simulation and planning of orthodontic interventions. In order to work with these models, knowing the exact position of the teeth is of high importance. In this paper, we present a new method for tooth segmentation with minimal user interaction. At the beginning, an initial estimate for the separating curve between the teeth and the gum is computed and optimized by use of an active contour. The second step calculates the dental arch and the interstices between the teeth. In order to detect each tooth surface exactly, we finally position a snake around the cusp of each tooth.


Related Articles

  • SECTION 12: Wax Patterns.  // Fixed Restorative Techniques;1989, p151 

    Section 12 of the book "Fixed Restorative Techniques" is presented. This section deals with patterns for dental waxing. It discusses the development of dies and working casts sufficient to permit creating a pattern of the restoration. It enumerates the advantages of indirect technique for...

  • SECTION 10: Establishing Occlusal Relationships with the Working Cast.  // Fixed Restorative Techniques;1989, p121 

    Section 10 of the book "Fixed Restorative Techniques" is presented. This section focuses in the method of establishing occlusal relationships with the working cast. It discusses the development of occlusion as related to the three basic techniques for pattern development. It also reminds of the...

  • Reliability of Bolton analysis evaluation in tridimensional virtual models. Brandão, Marianna Mendonca; Costal Sobral, Marcio; Vogel, Carlos Jorge // Dental Press Journal of Orthodontics;Sep/Oct2015, Vol. 20 Issue 5, p72 

    Objective: The present study aimed at evaluating the reliability of Bolton analysis in tridimensional virtual models, comparing it with the manual method carried out with dental casts. Methods: The present investigation was performed using 56 pairs of dental casts produced from the dental arches...

  • SECTION 17: Summary of Technique for Individual Cast Restorations.  // Fixed Restorative Techniques;1989, p245 

    Section 17 of the book "Fixed Restorative Techniques" is presented. This section provides a summary for individual dental cast restorations. It presents illustrations of work authorization and preparation of dies and casts. In addition, this section provides several methods for wax elimination...

  • Fixed Prosthetic Management as an Alternative to Orthodontic Treatment of Malpositioned Anterior Teeth. Johnson, James I. // Quintessence International;May1984, Vol. 15 Issue 5, p517 

    The article presents information on an alternative treatment for malpositioned anterior teeth. The treatment consists of fixed prosthetic management in instances where orthodontic care is not available or feasible under the circumstances. Two cases, first with rotated left maxillary lateral and...

  • A copy-denture technique: Laboratory and clinical procedures. Karkazis, Hercules C.; Kossioni, Anastasia // Quintessence of Dental Technology (QDT);1995, Vol. 18, p159 

    The article describes an easy and inexpensive copy-denture technique that can be carried out by the practitioner using normally available equipment and materials. In this technique, the impressions of the polished surface of the maxillary dentures were taken in the deep half of a modified soap...

  • Dimensional change of dentures finished in a two-stage cure. Sykora, Oskar; Sutow, Elliott J.; Gillis, Michael // Quintessence of Dental Technology (QDT);1995, Vol. 18, p201 

    The article presents a study to determine the opening of the vertical dimension, the loss of centric occlusion contacts and the distortion along the posterior palatal border of complete dentures that were completed by the normal second heat cure. Fifteen identical edentulous mandibular and...

  • A STUDY OF SOME OF THE MATERIALS USED IN THE CASTING PROCESS. SOLBRIG, OSKAR // Journal of Dental Research;Feb1929, Vol. 9 Issue 1, p55 

    A conference paper is presented which focuses on materials used in the dental casting process. Various materials that are used in dental casting are discussed, including gold and and wax. Physical changes that occur with plaster during the casting process is mentioned. A description of the...

  • Intraoral Impressions with the SR-Ivotray Special Technique. Marxkors, R. // Quintessence International;Dec1983, Vol. 14 Issue 12, p1225 

    The article focuses on the preparation of the intraoral impression with the SR-Ivotray special technique. In this technique the alginate is placed into the trays and the jaw contours are copied. The tray is placed on the alveolar process and is lightly adapted anteriorly. After that the...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics