(1) Background: Oral diseases are a major health burden in many countries and affect people throughout life, causing pain, discomfort, changes in facial physiognomy, and even death. The aim of the study was to determine dental treatment needs in a group of patients from Oltenia; (2) Methods: The retrospective study included 813 people, 341 men and 472 women, aged 6-93 years, presented for diagnosis and dental treatment between 2008-2018. The dental records of patients were used to evaluate the state of oral health, and the treatment needs of the patients. Data were collected and stratified into a database in Excel Windows (3) Results: Dental treatment needs included: oral health education sessions (33%), periodontal treatment (30.62%), fillings or other types of direct or indirect dental restorations (20.04%), including endodontic treatments, non-carious lesions treatment, extractions (27.42%), prosthetic restorations (71.83%), of which 10.08% complete dentures or overdentures with tooth or implant support and 43.9% partial dentures or bridges with tooth or implant support. (4) Conclusions: Social factors (socio-economic status and education of the population) and behavioral factors (diet and dental hygiene) have a great influence on dental health status.