Today, the use of photographs has become an indispensable part of everyday dental practice. They have a key role in the documentation of the initial condition, planning and monitoring of the therapy and evaluation of the achieved results. In addition to facilitating communication between dentists and patients, digital dental photographs also improve diagnosis and treatment planning. For a long time, DSLR cameras were considered the gold standard for photography in dentistry, but thanks to the advancement of digital technology, today's mobile devices have built-in high-resolution cameras that allow high-quality photos of teeth and the oral cavity to be taken. By using additional light sources, the quality of digital photos taken with mobile devices rises to an even higher level. Mobile devices are readily available, easy to use and affordable. In the teeth whitening process, digital photography plays a major role in documenting the condition of the teeth before, during, and after the whitening process. Using them, the doctor of dental medicine, as well as the patient, can monitor the course of therapy and compare the initial and final condition of the teeth. As an additional tool for evaluating the success of the therapy, it is recommended to use a spectrophotometer, a digital device for determining the colour of teeth. There are many advantages to the use of mobile devices in everyday dental practice and it certainly improves the quality of dental services.