Abstract
Introduction: The use of second generation semi-adjustable articulators for the reproduction of the mandibular kinematic often proves to be a technical and time constraint for the dentist. Therefore, its use, however essential within the dental office, is frequently forsaken. Materials and methods: The possibility of reproducing complex anatomical forms using rapid prototyping technologies can induce a more attractive and effective use of such a modified articulator. Results & Conclusion: Indeed, these replicas substitute for mechanical adjustments and thereby make the metrology on the patient an unnecessary element, both sources of the approximation of the kinematic. The aim of this study is to report on designing and manufacturing a semi-physiological articulator and on its pertinence through the comparison of the mandibular kinematics movement reproducibility on the two types of articulator.
Highlights
The use of second generation semi-adjustable articulators for the reproduction of the mandibular kinematic often proves to be a technical and time constraint for the dentist
Our study deals with those defined in the Fig. (1): the condylar slope, the Bennett angle and the immediate lateral movement [4]
We aim to free from the metrology on the patient and its limits of the mechanical adjustments
Summary
The use of second generation semi-adjustable articulators for the reproduction of the mandibular kinematic often proves to be a technical and time constraint for the dentist. As a matter of fact, are described as painful, or can even be visible, with multiple consequences [2]. Among these problems, dysfunction and disorders disrupting the mandibular movements and the teeth contacts of upper and lower jaws at rest or during these movements can be discriminated. Their study defines the dentistry discipline called occlusodontia that corresponds to the study of the masticatory system, of the different pathologies that may affect it and of their care. Parameters called determinants [3] characterize movements and anatomical relations. (1): the condylar slope, the Bennett angle and the immediate lateral movement (if Temporomandibular Joint TMJ disorders) [4]. The Non-Working Lateral Movement (NWLM) regards the opposite side of the working condyle, contrary to the working one (WLM)
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