Evaluation of endo-perio lesions according to different specific classifications

Abstract Introduction: Endo-perio lesions, beyond the clinical examination, are also assessed by means of radiographs. It is important that the radiographs used for diagnosis are accurate periapical radiographs, based on specific criteria. The study is of cross-sectional type with the collection of radiographic data on the appearance of endo-perio lesions in accurate periapical radiographs. The aim of the study is to evaluate the radiographic signs of endo-perio lesions, to enable the radiographic diagnosis of the lesions and then to divide them according to the subdivisions of the classification system of endo-perio lesions.Materials and methods: The study included 104 periapical radiographs of patients presented to a dental clinic, with objective and subjective complaints of the presence of endo-perio lesions. The radiographs were classified according to the accuracy criteria of periapical radiographs, criteria defined by Prichard. Accurate periapical radiographs were used to classify endo, perio, endo-perio lesions. Endo-perio lesions were classified based on the Simon et al classification and the Torabinejad and Trope classification.Results: The distribution of radiographs depending on the presence of endo or perio lesions varies as follows: endo lesions were presented in 32 cases or in 38% of the radiographs; perio lesions were present in 22 cases or in 26% of the radiographs and endo-perio lesions were in 30 cases or in 36% of the radiographs included in the study.According to the classification Simon etal. radiographs were divided: class a 40%, class b 20% class c 7% class d 10% and class e 23%.According to the Tobabinejad and Trope classification, endo-perio lesions were according to classes specifically: class a 60% class b 17% class c 23%.Conclusions: The main violation of the accuracy criteria of radiographs is mostly related to the displacement of the cone in the up-down direction, which is performed in support of the routine protocol in performing periapical radiographs.The values ​​in the study showed results on the frequency of occurrence relatively the same for both endo lesions and periodontal and in cases of occurrence of endo-perio combination. This data confirms the fact that endo-perio lesions have the same possibility of occurrence, both for endo-only lesions and for perio-only lesions. Despite the different types of endo-perio lesion classification, the distribution across the classification classes shows the same values ​​in equal percentages for true combined endo-perio lesions.