Evolution of articulators through the years has given an insight to the researchers trying to develop a mechanical device that simulates the jaw members and its movements.The purpose of using an articulator is to develop a prosthesis that will be harmonious in the oral cavity. Various articulators have been developed and are being improved upon as and when the functions of the jaws are understood better. Accordingly, in the present day, the availability of articulators range from simple hinge type to fully adjustable articulators. Selection of articulators depends upon the clinical situation. In complete denture prosthesis, semi-adjustable articulators suffice the requirements to develop a good denture. Fully adjustable articulators is used for fixed prosthesis.
The articulator, simple or complex, is an instrument that assists the dentist to apply his wisdom and skill to a clinical problem. The significance of the role of an articulator in clinical dentistry varies with the complexity and extent of the prosthesis in question. Evolution of articulators through the years has given an insight of the researchers trying to develop a mechanical device that simulates the jaw members and its movements.The purpose of using an articulator is to develop a prosthesis that will be harmonious in the oral cavity. Various articulators have been developed and are being improved upon as and when the functions of the jaws are understood better. This book covers in detail the programming of all types and systems of articulators. Thus it will give a detailed insight to the reader about the working and mechanics of the articulators.
Over last few decades “Articulators”, which is the basic instrument used in dentistry, have undergone lots of changes in their designs, due to which it is real difficult to learn about each of them in a single book. This book is an effort to cover all about articulators, starting from nomenclature, evolution, classifications, most popular articulators used in dental practice and how to select the articulator according to its use. This book is written basically for undergraduates dental students, keeping in mind the problems they face in learning all about articulators. I hope it will provide enough knowledge to them regarding the articulators.
Articulators and Face-bow through the Years- A Comprehensive Review
Numerous articulators are available for the fabrication of dental restorations. The success or failure of final restoration is more dependent on the operator of the articulator than on articulator itself. The use of facebow forms an integral part for analyzing and studying occlusion, developing the occlusion for complete dentures and other restoration. Failure to use the facebow leads to error in occlusion. If dentists understands articulators and their deficiencies, they can compensate for their inherent inadequacies.No one understands articulators better than the one who made them.
This text book on articulator enables its reader to select the articulator according to their needs. The articulators should be within the understanding & capabilities of the operator. One should not use too complex an instrument for a simple case or vice versa. Selection of Articulators depends upon the clinical situation a lot. The success or failure of the final restoration is more dependent on the operator of the Articulator than on the Articulator itself.
Articulators are mechanical instruments that represent the maxilla, mandible and TMJs The instrument is then used in the fabrication of fixed and removable dental restorations that are in harmony with those movements. It is often said, “the patient’s mouth is the best articulator. “ This statement is reinforced by the fact that the final test for a dental restoration is the occlusal harmony obtained when the restoration is placed in the patient’s mouth. Yet, mechanical articulators do have many advantages over the mouth for developing the patient’s occlusion An articulator serves as a patient in the absence of the patient because it can be programmed with patient records that allows the operator to fabricate a restoration that will be physiologically and psychologically successful. The history of the development of Articulators is filled with many interesting theories and conflicting concepts. “It must be recognized that the person operating the instrument is more important than the instrument. If dentists understand articulators and their deficiencies, they can compensate for their inherent in adequacies”.
Articulators are mechanical instruments that represent the maxilla, mandible and TMJs. Very little is known about the origins of dental articulators. Early articulators were based on individual theories of occlusion. The first instrument designs were attempts to duplicate anatomic relationships or reproduce functional movements of the anatomy. More sophisticated articulating instruments evolved as more was learned about anatomy, mandibular movements, and mechanical principles. Regardless of how simple or complex the articulator may be, its effectiveness depends on how well the operator understands its features, the accuracy of registering and transferring jaw relations and how the operator uses it. The large number and great range in complexity of modern articulators can mislead the dentist into thinking that the choice of a suitable instrument is a potentially difficult one. However, the choice is greatly simplified if one considers what records can be obtained accurately, what the instrument will be required to do, and the fact that articulator technology is not a substitute for a biological understanding of the masticatory system.
Articulating anything is like carving statue. On building a statue, a sculptor does not keep adding clay to his subject; actually he keeps chiseling at the un-essentials until the truth is revealed without obstruction. That is the articulator, though an important mechanical entity in itself is meaningless, unless that occlusion functions in the mouth in harmony with the biologic factors that regulate the mandibular activity of the patient. Primary function of articulator is to act as the patient in the absence of the patient. An articulator is used to simulate the patient’s temporomandibular joint, muscles of mastication, mandibular ligaments, mandible and maxilla and the complex neuromuscular mechanism that programs mandibular movements. Articulators can simulate, but cannot duplicate all possible mandibular movements. Even the most sophisticated articulator can be adjusted only to simulate the border, or excursive movements of the mandible.
This book comes across as a refreshingly new endeavor to present the reader with all there is to know about two seemingly complicated devices used in dentistry- the articulator and the facebow. It begins with the basics of human mandibular movement and hinge axis and takes the reader through, to its relation with the working of an articulator and a facebow. It helps the reader select the most appropriate articulator from the vast number of articulators available today and provides an illustrated, step by step guide to the use of these devices. A must-read for fabricating a successful prosthesis.
The temporomandibular joint is a complicated mechanism; not only does it allow pivoting, rotating, opening and closing movements, but also movements of translation and laterotrusion. Furthermore, the structures that make it up are not rigid, precise and unchangeable; rather, the muscles, ligaments and bone have a certain degree of elasticity. Into this milieu, the clinician is asked to introduce a prosthesis that is within the adaptive capacity of the neuromuscular system. In general, the clinician is always looking for ways to simplify the procedure for the fabrication of a prosthesis and to decrease the time necessary to integrate it into the mouth of the patient. Therefore a need existed for the clinician to simulate the movements of TMJ and associated structures, so that an accurate prosthesis could be fabricated. In achieving the simulation of the TMJ and associated structures, the articulator and facebow play an important role.
Внешний слой – эмаль серого цвета, устойчивая к высоким температурам Антипригарное покрытие: Silkware® – классическое, долговечное, для интенсивного использования (от Daikin) Надежное клёпочное крепление Упаковка: Картонный рукав, термопленка