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  Indian J Med Microbiol
 

Figure 4: Different visibility levels of the lingual foramen in panoramic radiography a) lingual foramen definitely absent (0), b) lingual foramen probably absent (1), c) unsure if lingual foramen absent or present (2), d) lingual foramen probably present (3), e) lingual foramen definitely present

Figure 4: Different visibility levels of the lingual foramen in panoramic radiography a) lingual foramen definitely absent (0), b) lingual foramen probably absent (1), c) unsure if lingual foramen absent or present (2), d) lingual foramen probably present (3), e) lingual foramen definitely present