In patients who come for treatment and have a prior appointment, an intraoral examination is performed using visual and tactile examination methods. A total of 639 proximal surfaces of 22 patients are examined by investigators using the visual-tactile method.

Bitewing radiographs available in the hospital system of patients who come to their appointment for treatment are examined. A total 639 proximal surface of 22 patient examined by investigators using bitewing radiography.

A total 639 proximal surface of 22 patient examined by using the NIRI feature of an intraoral scanner. Patients who came for restorative treatment were asked whether they volunteered in our study. An informed consent form was signed, and then lower and upper jaw scans were made by investigators.

Panoramic radiographs available in the hospital system of patients who come to their appointment for treatment are examined. A total 639 proximal surface of 22 patient examined by using panoramic radiography.

In the study, all volunteers are recorded with the itero Element 5D by activating the NIRI mode. The recording method does not involve ionizing radiation. 850 nm wavelength beams are used.

Surface codes: Sound surface (0), Enamel lesion (1), Lesions involving DEJ (2). A total of at least 150 surfaces are expected to be examined

Surface codes: Sound surface (0), Enamel lesion (1), Lesions involving DEJ (2). A total of at least 150 surfaces are expected to be examined

Surface codes: Sound surface (0), Enamel lesion (1), Lesions involving DEJ (2). A total of at least 150 surfaces are expected to be examined

Surface codes: Sound surface (0), Enamel lesion (1), Lesions involving DEJ (2). A total of at least 150 surfaces are expected to be examined