Indications and particularities of the clinical - technological steps of manufacture of temporary fixed prosthetic constructions

Abstract

Introduction. Crown lesions as well as reduced partial dentation are the most common dental conditions, which require prosthetic treatment. Fixed treatment of crown dental lesions and partial dentation is permanently accompanied by grinding of hard teeth structures and without their manufacture is often impossible (I.Postolachi; V.Guțuțui 1990). Aim of the study. The study of the particularities of the clinical picture of the crown dental lesions and of the reduced partial dentation by determining the effectiveness of the contemporary technologies for making the temporary fixed constructions. Materials and methods.. 25 patients was treated with prosthetic indications, age 22-47 years with coronal and edentulous dental injuries reduced to one or both jaws. The examination of the patients was performed clinico-instrumental, photometric, radiological; the diagnostic models in the articulator were studied. The Luxatemp Star Bisacrylic material was used to make the provisional crowns and bridges, made by the direct method. This is a high performance material by increasing the resistance to tearing and bending, and the grip time is reduced. The co-worker of these material provisional restaurants are aesthetic, durable and stable. Parallel high quality PMMA Bilkim material was also used, which allows the milling method to make fixed constructions of both single crowns and long-lasting dental bridges. Results. The study argues that the construction of provisional constructions in case of coronal dental lesions and reduced partial dentation contributes to: protection of the dental pulp and gingival tissues from harmful factors (physical, chemical and microbial). It allows the prosthetic doctor to specify the diagnosis and to perfect the treatment plan and its motivation to the patient as well as to transmit some information to the dental technician. We mention that both the crowns and the provisional dental bridges allow the healing of the post-extraction and peri-implantation remaining tissues, establish the occlusal relationships and the vertical dimension of occlusion, prevent the dental migrations and last but not least, by fixing them with the provisional cement they stimulate the repair processes in the tissue. Conclusions. The provisional prosthesis in fixed prosthetics has a privileged place. It is true that it raises costs, but in developed countries, it is no longer possible to design fixed prosthetics without provisional prosthetics.