Dental prostheses made of ceramic or metal and ceramics are sintered in specialized ovens, which sometimes suffer from an expected loss of calibration; these can lead to variations of the sintering temperature with regard to the manufacturer’s recommendations. Such variations can lead to high stresses and even to fractures in the dental ceramics, and therefore to the necessity to redo the dental construct. This is a major issue for the patient and a significant financial and prestige loss for the dentist. We have proposed for the monitoring of this process the use of optical coherence tomography (OCT) [1-3], a non-destructive method - in contrast to nowadays procedures, that employ the fabrication of supplemental samples by the technicians; such samples are evaluated only visually [4]. In this respect, OCT can also bring objectivity for the measurements with regard to the totally subjective evaluations performed nowadays. Different alternative, destructive methods, such as Scanning Electronic Microscopy (SEM) [5], are considered in order to validate the results obtained using OCT.