CLINICAL-STATISTICAL STUDY ON THE LONG-TIME BEHAVIOUR OF CERVICAL RESTORATIONS
Abstract:
In odontology, cervical carious lesions represent a distinct entity because of the morphological and physiological particularities of the area; their therapy poses problems related to the viability and duration of restorations. The aim of the present paper is to highlight the deficiencies that may occur over time in cervical composite or amalgam restorations. The material is represented by 105 three-year-old cervical restorations, more exactly 59 composite and 46 silver-amalgam restorations. The method is represented by a clinical-statistical analysis of the restorations, considering the patients’ gender and age (patients in the 20-60+ age bracket). The clinical status of restorations is assessed comparatively for the 2 restorative materials to meet 8 criteria, 6 common to the 2 types of restorations and 2 specific to each type of restoration. The results of the study show that, in the case of 3-year-old restorations, there are more or less important deficiencies, both common and specific to the restorative materials used, which is also mentioned in the literature. The conclusion of the study is that, over time, there are deficiencies not only in the preparations but also in the restorative material, their probable causes being synthesised in a table. It is clear that the imperfections in the restorative material as well as the defective technique employed during the stages that necessarily precede the use of restorative material, amalgam or composite can contribute to the occurrence of defects in cervical restorations over time.
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