COVID-19(5) SACs(2) chronic disease(2) Alveolar bone(2) severity of COVID-19(2) oral health(2) root canal treatment(2) cause(2) Periodontitis(2) with COVID-19(2) Dental caries(2) stages(2) Treatment(2) significantly lower(2) Gender(2) radiological(2) X-ray(2) viral disease(2) dental pathology(2) real time PCR(2) diagnosed(2) Process(2) hospitalization.(2) PCR tests(2) severe complications(2) Hospitalization(2) dental implants(2) NHC(2) Alveolar Bone Loss(2) Patient(2)