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Objective: to compare the image quality obtained by six cameras used for dental documentation, including four DSLR cameras and two smartphones with different sensor size. Methods: the equipment determined the groups: APSCcan18-55 – Sensor APS-C Canon (EOS T5i) + 18-55 mm lens; APSCcan100 – Sensor APS-C Canon (EOS T5i) + 100 mm macro lens; APSCnik18-55 – Sensor APS-C Nikon (D5100) + 18-55 mm lens; APSCnik100 – Sensor APS-C Nikon (D5100) + 100 mm macro lens; ip1/3” – iPhone with 1/3-inch sensor; ga1/2.6”Galaxy with 1/2.6-inch sensor. Two set of images -“dental documentation” and “small objects”were obtained. The photographs were evaluated by three groups: US, undergraduate students; DS, dentists; and DP, dentists with photography experience. Scores between 0 and 10 were assigned. The results were compared by RM Anova and Tukey (α = 0.05). Results: the highest overall scores were obtained with APSCnik100 (8.5). For “dental documentation”, APSCcan18-55 and APSCnik18-55 showed the lowest values, even compared to ga1/2.6” (for US, DS and DP evaluators) and ip1/3” (for US evaluators). For “small objects”, DSLRs resulted in higher mean values compared to smartphones for US and DS. Conclusions: DSLR cameras with 18-55 mm lens and no circular flash should not be used for documentation photographs. DSLR cameras, regardless of lens, are superior to smartphones for small objects photographs.

Comparisons between photographic equipment for dental use: DSLR cameras vs. smartphones