The goal of this randomized clinical trial is to compare the effect of erythritol air-polishing and conventional polishing following ultrasonic scaling on the relapse of chromogenic tooth staining in children aged 4-13 years attending the Pediatric Dentistry Clinic of Marmara University Faculty of Dentistry for routine dental examination.
The main questions this study aims to answer are:
* Does erythritol air-polishing reduce the relapse of chromogenic tooth staining compared with conventional polishing following ultrasonic scaling? * Is there a difference in the time to relapse of chromogenic tooth staining between the two polishing techniques?
Researchers will compare conventional polishing (prophylaxis paste and a polishing brush) following ultrasonic scaling with erythritol air-polishing performed using the EMS air-polishing device following ultrasonic scaling to determine whether one method is more effective in preventing or delaying the relapse of chromogenic tooth staining.
Children aged 4-13 years.
Absence of oral diseases, including gingivitis and oral mucosal diseases.
No orthodontic appliances.
No history of iron supplementation or professional fluoride treatment within the previous 3 months.
Presence of oral diseases, including periodontitis, salivary gland diseases, or oral mucosal diseases.
History of autoimmune disease.
Antibiotic use within the previous 3 months.
Consumption of tannin-containing beverages (e.g., tea, coffee, or similar beverages) within the previous 1 month.