Objective:The aim of this study was to evaluate the position of the third molars andtheir relationship with the maxillary base length on panoramic andcephalometric images.Materialand Method: Cephalometric and panoramic radiographswere applied to Istanbul Aydın University Faculty of Dentistry Departments ofOral, Dental Maxillofacial Radiology and Orthodontics. In the retrospectivestudy, the positions of maxillary third molars and their relationship witheffective maxillary base length were examined in detail on cephalometricimages.Results:Theobtained data were evaluated using SPSS (22.0) package program. Regarding thedata analysis, Mann-Whitney U Test Statistics was used for the analysis oftwo-variable data. The maxillary base relation of the maxillary third molars,which had been examined on cephalometric and panoramic images, were identifiedas 48.3% for skeletal class I,  41.1% forskeletal class II, 10.6% for skeletal class III, 70.2% for unilateral, and29.8% for bilateral.   The upper impactedwisdom tooth being unilateral or bilateral does not affect the length of themaxillary base (P = 0.735). The length of the maxillary base being unilateralor bilateral did not exhibit any statistical difference (Mann Whitney U Test).Conclusion:In the light of this study, the need for considering the treatment mechanicsused in orthodontic treatments and the precautions to be taken prior totreatment planning in order to prevent any potential complications that mayoccur during surgical operations with regard to identifying the relationshipbetween third molars and the anatomical formations on cephalometric andpanoramic radiographs, as well as establishing whether this relation plays arole in the impaction of upper wisdom teeth.