###### Abstract
found that the combination of high-speed rotary instruments and air-water syringes, either with or without a rubber dam, demonstrated that the rubber dam alone prevented up to 90-98% of bio-aerosols from spreading. Similarly, [PERSON] and colleagues reported a 70% decrease in airborne particles within a 1 m radius of the treatment site, with no notable effect on surfaces located 3 m away [7]. In addition to the advantages of rubber dam usage, there are also certain disadvantages associated with its application. These include the time required for placement, the difficulty of use, and the material cost [3]. However, the time considered as a loss during placement is more than compensated for by the time saved through the retraction of the tongue and lips, the reduction in contamination risk, and the elimination of the constant need for replacing cotton rolls [8; 9]. In a study using three different rubber dam systems, the average time for rubber dam application was found to be 51 s (ranging from 38 to 79 s). The application times for OptiDamTM was 42 s, for the traditional method it was 51 s, and for OptraDamTM Plus it was 53 s. The removal times for the rubber dam were 12 s for the traditional method, 14 s for OptraDamTM Plus, and 10 s for OptiDamTM[10]. When comparing isolation techniques used in pediatric dentistry, including the Isolite system, rubber dam, and cotton roll isolation methods, the average times spent at the patient's chair were approximately 248, 256, and 243 s, respectively. No significant differences were observed in procedure times among the isolation methods, and it was found that the rubber dam placement time decreased as children grew older [11]. Fixed appliances in orthodontics began to be used in 1887 by [PERSON]. This system, defined as the 'Edgewise system', forms the basis of current orthodontic approaches. Due to its disadvantages for both orthodontists and patients, this technique has been largely abandoned in favor of the 'Straightwire technique' defined by [PERSON]. In this technique, the brackets contain values such as tip, torque, and in/out that are crucial for transferring forces to the teeth. The most important aspect is determining the correct placement of these self-contained value brackets [12]. [PERSON] defined the reference point for bracket placement as the Facial Axis of Clinical Crown (FACC) of the tooth. The midpoint of this axis (FA) is where the bracket should be positioned. The facial axis of the bracket must be parallel to the FACC, and the center of the bracket must be located at the FA point. The base of the bracket is sloped to achieve the appropriate torque value, and the bracket slot itself does not contain torque values. The bracket base has both vertical and horizontal contours, which ensure a reliable placement of the bracket [12]. The distance from the slot base to the bracket base varies for each tooth, reflecting the in/out values. The in/out, tip, and torque values contained in the bracket minimize the need for bending, thereby reducing treatment time and the duration of patient visits. Brackets incorporating anti-tip and anti-rotation features facilitate translational movement in extraction treatments [12]. The straight wire technique is dependent on the precise positioning of brackets, followed by the application of the archive to align the teeth in all three planes [12; 13]. Therefore, in orthodontic treatment, the position, height, torque, and angulation of the brackets are crucial components that have an impact on the treatment outcome [14]. This study aims to compare the effects of rubber dam and traditional isolation techniques on orthodontic bracket positioning using 3D digital models, while also evaluating the impact of these methods on the patient's chair time during the procedure.