(A) maxillary anterior teeth.
(B) maxillary anterior teeth and their labial gingivae.
(C) maxillary anterior teeth, their labial gingivae and the upper lip.
(D) maxillary anterior teeth, their labial gingivae, the upper lip and anterior hard palate.
(A) maxillary anterior teeth.
(B) maxillary anterior teeth and their labial gingivae.
(C) maxillary anterior teeth, their labial gingivae and the upper lip.
(D) maxillary anterior teeth, their labial gingivae, the upper lip and anterior hard palate.
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