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  Indian J Med Microbiol
 

Figure 2: Human palate (schematic). Neuro-crest fields: yellow = bilateral frontonasal; red = bilateral maxillary; orange = bilateral palatine. (A) Right maxillary field marked with neuro-crest sign. (B) Right maxillary field subgrouped in canine (bluish) and premolar fields. (C) Transposition of canine field (bluish) to area between premolars. Canine and premolar fields overlap. (D) Transposition of canine field (bluish) to region between the incisors. Canine and incisor fields overlap. (E) “Underdevelopment” of canine field and agenesis of canine. (F) “Underdevelopment” of canine field and agenesis of canine and the first premolar.

Figure 2: Human palate (schematic). Neuro-crest fields: yellow = bilateral frontonasal; red = bilateral maxillary; orange = bilateral palatine. (A) Right maxillary field marked with neuro-crest sign. (B) Right maxillary field subgrouped in canine (bluish) and premolar fields. (C) Transposition of canine field (bluish) to area between premolars. Canine and premolar fields overlap. (D) Transposition of canine field (bluish) to region between the incisors. Canine and incisor fields overlap. (E) “Underdevelopment” of canine field and agenesis of canine. (F) “Underdevelopment” of canine field and agenesis of canine and the first premolar.