OBJECTIVE: The aim of this study was to analyze the prevalence of AP in relation to the quality of endodontic treatment in an Italian adult population. METHODS: We examined panoramic radiographs (OPG) of 384 patients aged between 18 and 60 years who came under observation for a first dental examination. Two experienced examiners assessed the radiographs according to standardized criteria by examining the following parameters: periapical status, quality of endodontic treatment, quality of root canal filling and quality of coronal restoration. RESULTS: 9423 teeth were analyzed. By examining the radiographs 1076 teeth had undergone previous endodontic treatment, of these 448 (41.6%) had AP. Statistical analysis shows a significant association between periapical status and quality of endodontic treatment (p <0.001), between periapical status and quality of root canal filling (p <0.001) and between periapical status and quality of coronal restoration (p <0.001). CONCLUSIONS: The prevalence of AP was found to be closely related to the quality of endodontic treatment, quality of root canal filling and coronal restoration.
OBJECTIVE: The aim of this study was to analyze the prevalence of AP in relation to the quality of endodontic treatment in an Italian adult population. METHODS: We examined panoramic radiographs (OPG) of 384 patients aged between 18 and 60 years who came under observation for a first dental examination. Two experienced examiners assessed the radiographs according to standardized criteria by examining the following parameters: periapical status, quality of endodontic treatment, quality of root canal filling and quality of coronal restoration. RESULTS: 9423 teeth were analyzed. By examining the radiographs 1076 teeth had undergone previous endodontic treatment, of these 448 (41.6%) had AP. Statistical analysis shows a significant association between periapical status and quality of endodontic treatment (p <0.001), between periapical status and quality of root canal filling (p <0.001) and between periapical status and quality of coronal restoration (p <0.001). CONCLUSIONS: The prevalence of AP was found to be closely related to the quality of endodontic treatment, quality of root canal filling and coronal restoration.