Recently there has been a great deal of research on using the Sachdev-Ye-Kitaev model to probe the AdS2/CFT1 duality. Comparatively little is known, however, about its gravitational dual, the Jackiw-Teitelboim model. In this talk, I will present a detailed analysis on how to compute one-loop quantum corrections in the Jackiw-Teitelboim model via a precise understanding of field quantization, geometry, and Hodge decomposition in AdS2. In particular, I will use these techniques to compute the one-loop quantum corrections to the free energy and entropy of the Jackiw-Teitelboim model, and show that they match precisely with results from related theories. Finally, I will end with some comments on holographic implications for our results.