The virtual articulator in dentistry: concept and development

Kordaß, B; Gärtner, Ch.; Söhnel, Andreas; Bisler, Alexander; Voß, Gerrit; Bockholt, Ulrich; Seipel, Stefan

doi:10.1016/s0011-8532(02)00006-x

Cited by 67 publications

(44 citation statements)

References 6 publications

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“…Clark and Evans [14] demonstrated that the pathways of condyle movement in three-dimensional space could be reproduced by fully adjustable articulators. In addition, some researchers [15][16][17] have evaluated the dynamic condylar movement using virtual articulators. In addition to these approaches, computed tomography (CT) imaging allows the morphology of the TMJ to be measured noninvasively and in vivo.…”

Section: Introductionmentioning

confidence: 99%

Assessments of inclinations of the mandibular fossa by computed tomography in an Asian population

Shen

Chen

et al. 2011

Clin Oral Invest

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This study aims to evaluate the inclinations of right and left sides the mandibular fossa in Asian population using computed tomography (CT) images and determine its effects according to the parameters of gender, age, and asymmetry. CT images of the heads of 198 Asian subjects [95 females aged 44.2 ± 20.7 years, range 11-88 years; and 103 males aged 44.5 ± 19.7 years, range 15-98 years] were selected. The following eight parameters characterizing the inclinations of the mandibular fossa were measured by medical imaging software: anterior and posterior inclinations on the left and right sides on a sagittal view, and medial and lateral inclinations on the left and right sides on a coronal view. The anterior inclination was significant steeper in males than in females on both the left and right sides. A moderate positive correlation was found between age and anterior inclinations on the left and right sides. None of the other parameters were significantly affected by age or gender. None of the parameters differed significantly between the right and left sides of the mandibular fossa in males, females, or all subjects. The anterior inclination of the mandibular fossa was affected by aging and gender becoming steeper in Asians males than females. Besides, there were no asymmetry in the right and left side inclinations of the mandibular fossa.

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Section: Introductionmentioning

confidence: 99%

Assessments of inclinations of the mandibular fossa by computed tomography in an Asian population

Shen

Chen

et al. 2011

Clin Oral Invest

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“…The absence of data on non-working side contacts was unavoidable, as virtual modelling of condylar movement was reported to be imprecise (40). Several reports acknowledged that a limitation of available CAD/CAM systems is lack of a reliable virtual articulation system that can simulate dynamic motion (41)(42)(43). The authors therefore concluded that the accuracy of the virtual articulator in simulating dynamic motion might be acceptable for orthodontic treatment but not for prosthodontic treatment (39).…”

Section: Discussionmentioning

confidence: 99%

Geometrical effects of conventional and digital prosthodontic planning wax-ups on lateral occlusal contact number, contact area, and steepness

Abduo

2017

J Oral Sci

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This study evaluated and compared the effect of conventional and digital wax-ups on three lateral occlusion variables: contact number, contact area, and steepness. Dental casts of 10 patients with Angle Class I relationship were included in the study. All patients required fixed prosthodontic treatment that would affect lateral occlusion. The casts of all patients received conventional and digital wax-ups. For pretreatment, conventional wax-up, and digital wax-up casts, contact number, contact area, and occlusion steepness were measured at four lateral positions, that is, at excursions of 0.5, 1.0, 2.0, and 3.0 mm from maximal intercuspation. Lateral occlusion scheme variables were affected by use of diagnostic wax-ups. For all types of casts, contact number decreased as excursion increased. The two types of wax-ups had similar contact number patterns, and contact number was significantly greater for these casts than for pretreatment casts in the earlier stages of excursion. Similarly, contact area gradually decreased with increasing excursion in the pretreatment and conventional and digital wax-up casts. There was only a minimal decrease in occlusion steepness as excursion increased. However, lateral occlusion was generally steeper for digital wax-up casts.

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“…In effect, the movements reproduced by the mechanical articulator follow the margins of the structures that conform the mechanical joint, which remain invariable over time, and which cannot simulate masticatory movements that are dependent upon the muscle patterns and resilience of the soft tissues and joint disc. Moreover, tooth mobility cannot be simulated by plaster models; as a result, the latter are unable to reproduce the real life dynamic conditions of occlusion (2,3). There are also other problems derived from the procedures and materials used for assembling the models in the articulator: precision in orienting the model, expansion and contraction of the plaster, deformation of the bite-recording material, the stability of the articulator, etc.…”

Section: Introductionmentioning

confidence: 99%

“…There are also other problems derived from the procedures and materials used for assembling the models in the articulator: precision in orienting the model, expansion and contraction of the plaster, deformation of the bite-recording material, the stability of the articulator, etc. (3). …”

Section: Introductionmentioning

confidence: 99%

Virtual articulator for the analysis of dental occlusion: An update

Maestre-Ferrín¹,

Romero-Millán²,

Peñarrocha‐Oltra³

et al. 2012

Med Oral

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The future of dental practice is closely linked to the utilization of computer-based technology, specifically virtual reality, which allows the dental surgeon to simulate true life situations in patients. The virtual articulator has been designed for the exhaustive analysis of static and dynamic occlusion, with the purpose of substituting mechanical articulators and avoiding their errors. These tools will help both odontologists and dental prosthetists to provide the best individualized treatment for each patient. The present review analyzes the studies published in the literature on the design, functioning and applications of virtual articulators. A Medline-PubMed search was made of dental journals, with the identification of 137 articles, of which 16 were finally selected. The virtual articulator can simulate the specific masticatory movement of the patient. During mandibular animation, the program calculates the sites where the opposing teeth come into contact. The studies made to assess the reliability of the virtual articulator show good correspondence in visualization of the number and position of the dynamic contacts. The virtual articulator is a precise tool for the full analysis of occlusion in a real patient. Key words: Virtual articulator, dental occlusion, dental articulator.

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The virtual articulator in dentistry: concept and development

Cited by 67 publications

References 6 publications

Assessments of inclinations of the mandibular fossa by computed tomography in an Asian population

Assessments of inclinations of the mandibular fossa by computed tomography in an Asian population

Geometrical effects of conventional and digital prosthodontic planning wax-ups on lateral occlusal contact number, contact area, and steepness

Virtual articulator for the analysis of dental occlusion: An update

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