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  • Title: A computed tomographic study of the distances between the maxillary sinus floor and the apices of the maxillary posterior teeth.
    Author: Eberhardt JA, Torabinejad M, Christiansen EL.
    Journal: Oral Surg Oral Med Oral Pathol; 1992 Mar; 73(3):345-6. PubMed ID: 1545967.
    Abstract:
    The mean distance between the apices of the maxillary posterior teeth and the floor of the maxillary sinus was measured from computed tomographic display data from 12 autopsy specimens and 38 human subjects. The distance from these apices to the adjacent lateral bony surfaces was also measured. The apex of the mesiobuccal root of the maxillary second molar was closest to the sinus floor (mean 1.97 mm) but farthest from the buccal bony surface (mean 4.45 mm). The apex of the buccal root of the maxillary first premolar was closest to the adjacent lateral bony surface (mean 1.63 mm) but farthest from the floor of the sinus (mean 7.05 mm).
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