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The anatomical and morphological features of the jaw do not always allow dental implants to be placed in the prosthetic space, the number and size of the endosseous part of which is sufficient to create a reliable system of autonomous supports. The situation is further aggravated in the presence of concomitant risk factors: bite anomalies, periodontal disease, etc. Sinus elevators, bone grafting, transposition of the inferior alveolar nerve are unacceptable options for many patients because they are difficult, traumatic, time-consuming and expensive.

In such cases, an effective and affordable way to ensure the necessary stability of the system is to incorporate natural teeth into the prosthesis. The magnitude of the use of teeth can vary widely depending on the clinical picture: from single inlays and occlusal onlays to the creation of an arched denture of the entire tooth row. Up until the 1990s. Until the 1990s, a negative attitude towards the possibility of such fusion prevailed among implantologists around the world. It was believed that due to the difference in individual mobility of natural and artificial supports various kinds of complications were inevitable: breakages and cementation of prostheses, peri-implantitis, periodontitis of supporting teeth.

In recent years, however, with the accumulation of experimental and clinical data, the possibility of combined use of dental implants and teeth has been recognized by an increasing number of specialists. Individual mobility of the tooth and dental implant, as well as the amortization capacity of the periodontal and peri-implant tissues, should not be considered in isolation from the individual characteristics of the structure and functional state of the jaw and dental (prosthetic) tissues – antagonists, deformation characteristics of the implant and prosthetic materials used, tone and degree of development of chewing muscles, type of food, chewing type.

In the “average” anatomico-physiological situation, the total damping properties of denture, its antagonists, implants and jaws can be considered sufficient for neutralization of chewing pressure. In addition, when eating predominantly cooked and chopped foods, the functional load on the dentures is far from the limiting values. Thus, there is reason to believe that the indicators of “working” (physiological) mobility of teeth and implants under load are comparable to a certain extent, and the use of the combined support system is quite effective, reasonable and expedient.

 

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