RESUMO
Endodontic–periodontal lesions present challenges to the clinician as far as diagnosis andprognosis of the involved teeth are concerned. Etiologic factors such as bacteria, fungi,and viruses as well as various contributing factors such as trauma, root resorptions,perforations, and dental malformations play an important role in the development andprogression of such lesions. The relationship between the pulp and periodontium has been extensively studied. The pathways for the spread of bacteria between pulpal and periodontal tissues have been discussed with controversy. This case report presents a successful treatment of a 43 year old systemically healthy male suffering with endoperio lesions of upper right first and second molar teeth.
RESUMO
Dentists have come to realize that with proper endodontic therapy and adequate restoration, pulpless teeth can continue indefinitely as an integral part of the dental apparatus. And yet endodontic therapy should not be done on teeth that can not be restored. In this study 45 freshly extracted maxillary premolars were restored with prefabricated parallel post and subsequently restored with Amalgam, composite and Glass cermet. The teeth in each of the restoration groups were allocated to three different loading conditions, load at an angle of 100, 450 and 900 to long axis of the specimen. It is observed that glass cermet core showed a mean failure load that was lower for all three loading conditions than those of Amalgam and composite cores. The aim of the study was to compare the bond strengths of Amalgam, composite and glass cermet cores restored with a pre-fabricated parallel post when subjected to simulated occlusal forces from varying angles.