Interactive PTB with Bluetooth® 4.0 connectivity smartphone app with Cross Action brush head using visually position detection feature. A triple pressure control system stops vibration, gives a visual warning, and reduces rotation speed in Daily Cleaning Mode-1.

PTB without Bluetooth® 4.0 connectivity without smartphone app with Cross Action brush head without using visually position detection feature triple pressure control system stops vibration, provides visual warning and reduces rotation speed. The group was asked to use PTB with daily cleaning mode 1 and brush head, but without using the Bluetooth app (without using the position detection system).

They were instructed to brush according to the Modified Bass technique.

All the participants were asked to brush with fluoride toothpaste (Pro-Expert Professional Protection- Ipana, Gross-Gerau, Germany) with a pea-sized amount (0.25 g) of the toothbrushes, which were given oral and applied instructions for use, twice a day in the morning and evening. The installation and operation of the toothbrush application (app) on the smartphone was activated in the PTB with the app group

Tooth surfaces stained with Mira-2 Toneblue® were evaluated with six different scores: Score 0 = No plaque, Score 1 = Plaque stains on the cervical edge of the tooth, Score 2 = A thin, continuous strip of plaque (up to 1 mm) at the cervical edge of the tooth, Score 3 = band of plaque wider than 1 mm but covering less than one-third of the dental crown, Score 4 = Plaque covering at least one-third but less than two-thirds of the dental crown, Score 5 = Plaque covering two-thirds or more of the dental crown.

Tooth surfaces stained with Mira-2 Toneblue® were evaluated with six different scores: Score 0 = No plaque, Score 1 = Plaque stains on the cervical edge of the tooth, Score 2 = A thin, continuous strip of plaque (up to 1 mm) at the cervical edge of the tooth, Score 3 = band of plaque wider than 1 mm but covering less than one-third of the dental crown, Score 4 = Plaque covering at least one-third but less than two-thirds of the dental crown, Score 5 = Plaque covering two-thirds or more of the dental crown.

The presence/absence and amount of bleeding were graded on a 0-2 scale within 30 seconds of probing by probing the gingival margin at an angle of approximately 60 to the long axis of the tooth (0 = no bleeding, 1 = punctate bleeding, 2 = excessive bleeding).

The presence/absence and amount of bleeding were graded on a 0-2 scale within 30 seconds of probing by probing the gingival margin at an angle of approximately 60 to the long axis of the tooth (0 = no bleeding, 1 = punctate bleeding, 2 = excessive bleeding).

The records in PTB group without-app and MTB were obtained with digital timer. In contrast, these records were obtained at the last appointment of the study; in Group PTB-A, the last brushing time records were sent to the researcher via e-mail by using the integral timer of the toothbrush, which is a feature of the mobile application.