Analysis of known methods of locking and clamp fixation of arch prostheses in the area of molars and isolated premolars for the replacement of Kennedy Class II and III dentition defects

When solving the problem of partial tooth loss and dentition defects, a well-made arch or clasp prosthesis, as well as a combined prosthesis with attachment systems, can be a treatment option. The best results in the prosthetic treatment of dentition defects are obtained with a combined prosthesis with attachments. It ensures minimal invasiveness of treatment, reversibility of treatment, makes it possible to compensate for large dentition defects, physiologically redistributes masticatory load between the remaining teeth and the oral mucosa, mechanically connects the remaining teeth into a single system, restores chewing and speech functions, provides a good aesthetic outcome , and has a number of other important advantages. At the same time, achieving optimal retention remains a prerequisite for long-term, comfortable use of the prosthesis. The type of retentive element is crucial for prosthesis retention. Often, the clinician faces the question of choosing one of the many attachment systems available. This article analyzes the advantages and disadvantages of known methods of fixation of arch prostheses for molars and isolated premolars in the replacement of Kennedy Class II and III dentition defects.

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