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Anatomy Atlases: Illustrated Encyclopedia of Human Anatomic Variation: Opus V: Skeletal Systems: Maxillary Sinus Variations

Illustrated Encyclopedia of Human Anatomic Variation: Opus V: Skeletal Systems

Maxillary Sinus Variations

Ronald A. Bergman, PhD
Adel K. Afifi, MD, MS
Ryosuke Miyauchi, MD

Peer Review Status: Internally Peer Reviewed


A.Approximately average relations of the maxillary sinus.

B.Shortening of the ventrosuperior diagonal of the maxillary sinus, so that the only teeth in direct relation to it are the second and third molars. (Adapted from Schaeffer, J. P.: Am. J. Anat.10:313, 1910.)

C.Moderately thick alveolar process, with the roots of the second molar tooth very close to the mucous membrane of the maxillary sinus. (Adapted from Schaeffer, J.P.: Am. J. Anat.10:313, 1910.)

D. Extreme development of the maxillary sinus, with marked thinning of the alveolar process: the root of the sole remaining tooth projects into the sinus, covered only by the mucous membrane of this. (Adapted from Schaeffer, J. P.: Am. J. Anat.10:313, 1910.)

E.Variation in positions of the ostium of the maxillary sinus in relation to the anterior, middle and posterior thirds (1, 2, 3) of the ethmoidal infundibulum. The percentages given are those of Van Alyea ('36).

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