The aim of this descriptive cross-sectional epidemiological research in the private dental clinic was to evaluate the preventive measures and oral health condition status that could take place inside the private dental office. The primary objective was to obtain a protocol by calculating and evaluating various indexes for the preventive measures in the private room. Materials and Methods: The study comprised of 499 patients in which 260 females and 239 were males from Romanian population who were checked and evaluated for complete oral health condition and decayed teeth (DT) by the decayed, missing, and filled teeth (DMFT) index, for the periodontal disease by community periodontal index treatment needs (CPITN) and gingival index, and for masticatory function by functional teeth unit index and new invented group strategy treatment index (SGTI) index. The data were obtained before and after the preventive treatment in DMFT and was compared and evaluated. Using a preformed Performa for this study all patients’ oral health status data were recorded and

observed. Results: Obtained data by SGTI index and others we found that poor oral hygiene and bad periodontal condition was observed (P < 0.001) in Romania tribes. Using preventive measures, giving education to patients for oral hygiene maintenance and dental implants we manage to pull back the DMFT index (P < 0.001) for 18% of the studied persons from an average of 14-30 DMFT to 12-20. The other indexes have showed a better health status with percentages between 0% and 87%. Conclusions: The results of our study could lead to a new approach to evaluate and prevent from initial caries, periodontal disease, and DT by restoration and treatment of missing teeth using implants, etc., inside the private dental practice. This is an original Research that presents two new and unprecedented ideas for decreasing DMFT index by using implants and rematerializing procedures, and the use of a newly invented index named SGTI for group strategy treatment. The use of epidemiologic index inside the private dental offi ce is also an original approach to the dental procedures.