Background:
Due to progress in medical care the mean longevity increases, as reflected by statistical data. Between 2021 and 2022, life expectancy for men and women increased by one year and 0.6 years, respectively. This fact is reflected in the decreasing number of retained teeth in the population. Unfortunately, due to the limited number of prosthetic services provided by the National Health Fund, the most common form of treatment is a removable prosthetic restoration.

Aim of the study:
To compare the number of adjustments made to removable dentures following their delivery to the patient relative to the number of manufacturing stages. Comarisons were made between traditional therapeutic approach, which divides the functional impression and centric occlusion registration stages into two visits, and a situation in which these stages are carried out in a single visit.

Material and methods:
In all, the medical records of 376 patients were analysed. The medical records of 231 patients treated at the Prosthodontics Clinic of the SUM University Dental Centre were included in the study. The inclusion criterion was the presence of the functional impression stage.

Results:
The frequency of functional impressions carried out with centric occlusion registration during a single visit was compared with the division of both procedures into two separate appointments. The number of corrections made to restorations in patients with one-step and two-step procedures was also analysed. The results show that the functional impression and registration of the occlusion were performed significantly more often in two separate visits and that the percentage of patients requiring correction was lower in this case.

Conclusions:
For both aspects, a difference was found between performing both procedures simultaneously and splitting them into two separate sessions.