The Superior Alveolar Nerves: Their Topographical Relationship and Distribution to the Maxillary Sinus in Human Adults

• MURAKAMI Gen

  Department of Anatomy, Nihon University School of Medicine

• OHTSUKA Kenji

  Department of Otorhinolaryngology, Nihon University School of Medicine

• SATO Iwao

  Department of Anatomy, Nippon Dental University, School of Dentistry at Tokyo

• MORIYAMA Hiroshi

  Department of Anatomy, Showa University School of Medicine

• SHIMADA Kazuyuki

  Department of Anatomy, Showa University School of Medicine

• TOMITA Hiroshi

  Department of Otorhinolaryngology, Nihon University School of Medicine

抄録

The superior alveolar nerves in human adults were investigated macroscopically using whole-mount silver impregnation, paying special attention to their topographical relationship and distribution to the mucous membrane of the maxillary sinus. In addition, the fiber composition of the alveolar nerves was analysed in order to estimate their contribution to teeth innervation.<BR>The posterior superior alveolar nerve (PSAN) ran through canaliculi in the lateral wall of the sinus (23 of 37 cases,62.2%) or under the mucous membrane of the sinus (14 of 37 cases,37.8%). Moreover, the PSAN gave off many fine twigs to make complex plexus under the mucous membrane of the sinus before joining the superior dental plexus. The plexus of the maxillary sinus was separated from the superior dental plexus by the bony wall of the sinus. After the above gross observations, the perimeter compositions of myelinated fibers of the plexus, PSAN and the anterior alveolar nerve were analysed in the same specimen. The plexus was composed of myelinated fibers of less than 27μm in circumference perimeter (mean; 14.3μm) and numerous unmyelinated fibers. The fiber composition suggested that few fibers in the plexus of the maxillary sinus contribute to the formation of the superior dental plexus. The superior dental plexus, innervating the upper teeth, was located in the thick alveolar process of the maxilla, and not on the maxillary sinus wall. The clinical importance of these results was discussed in relation to nerve injury during antrostomy of the maxillary sinus.

収録刊行物

• Okajimas Folia Anatomica Japonica

  Okajimas Folia Anatomica Japonica 70 (6), 319-328, 1994

  Editorial Board of Okajimas Folia Anatomica Japonica

キーワード

• Human anatomy
• Maxillary sinus
• Superior alveolar nerves
• Superior dental plexus
• Whole-mount silver impregnation

詳細情報

• CRID: 1390282680437418112
• NII論文ID: 130004990615
• DOI: 10.2535/ofaj1936.70.6_319
• COI: 1:STN:280:DyaK2czhs1Ciug%3D%3D
• ISSN: 0030154X
• ISSN: http://id.crossref.org/issn/0030154X
• 本文言語コード: en
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可