The dental transplant was already in use more than 2,000 years ago, reaching a peak in the Middle Ages, but it was only after the 1950s that this subject appeared in the scientific literature. This article describes the case of a young woman whose mandibular left second and right first molars had to be extracted and were replaced using the maxillary third molars. The positive clinical and radiographic results over a 5-year period encourage the use of this technique.