Abstract
The periapical inflammatory lesion of endodontic origin (LIPOE) is a very common condition and constitutes both a diagnostic and a therapeutic challenge in dentistry. The present study aims to describe the frequency of LIPOE after endodontic treatment consecutive to the quality of root canal fillings and prosthetic restorations of abutment teeth and to identify the qualities of root canal fillings and prosthetic restorations associated with the occurrence of LIPOE. This is a prospective, descriptive and cross-sectional study carried out from March 2019 to August 2022. One hundred and eighty patients wearing Joint Prostheses for at least 2 years with endodontically treated abutment teeth have been recruited; the evaluation of the quality of prosthetic restoration was established according to the criteria of Hickel R while the quality of the root canal filling was judged according to the criteria of Schaeffer MA. The frequency of LIPOE on the abutment teeth was 59.4%. The results highlighted that inadequate quality of prosthetic restoration and root canal filling is associated with the occurrence of LIPOE with a highly significant difference (p˂0.000) In order, to reduce the prevalence of LIPOE and mitigate its effects, it is essential to follow the rules of the art when considering mechanical and biological imperatives during endodontic treatment, as well as good training in prosthetic restoration.
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