**1. Introduction**

The improvement of modern living conditions, the increase in life expectancy, and the propensity of looking younger and more beautiful have led to an increase in the need for esthetic treatments. Thanks to the orthodontic treatment, as long as the periodontal tissues are healthy, an esthetic smile can be served in all age groups of individuals. Regarding the esthetic involvement in the orthodontic practice as well as the treatment outcomes metallic colored brackets, tooth-colored brackets, lingual brackets, and aligner treatments have been performed in the clinical practice. Attachments and appliances used in the treatment create an area for plaque involvement at various levels.

Enamel discoloration and initial caries lesions are the most prominent clinical problems in patients undergoing orthodontic treatment. As a result of the decrease in the oral pH value, the diffusion of calcium and phosphate ions from the enamel becomes easier and a color change occurs on the enamel surface as a result of

decalcification. Irregular surfaces of brackets, wires, bands, and other attachments limit naturally occurring self-cleaning mechanisms, such as the movement of saliva and its intraoral muscles. Increased incidence of these lesions has been found in patients after orthodontic treatment due to long-term plaque accumulation and inadequate oral hygiene [1]. In order to prevent the formation of white spot lesions that cause both demineralization and discoloration of the teeth, and to prevent their progression by treating them at an early stage, it is recommended to take the necessary precautions before and during the treatment and to choose the appropriate diagnostic methods and apply the necessary treatment methods [2].
