Cephalometric analysis of the obstructive sleep apnea syndrome. 1991

A Rintala, and R Nordström, and M Partinen, and R Ranta, and A Sjöblad
I Department of Surgery, Helsinki University Central Hospital, Finland.

The cephalometric measurements of 33 Finnish OSAS patients showed a fairly normal relationship between the base of the skull and the maxilla (SNA 82.3), whereas the mandible was slightly smaller than average (SNB 78.0). In 58% of the patients the mandible was significantly retrognathic and/or small in relation to the maxilla, even if dental occlusion was satisfactory. The sagittal lengths of the anterior cranial base and the maxilla were fairly normal. The hyoid bone was constantly situated more inferiorly and posteriorly than on average (MP-H 32.6). UPPP, genioplasty and advancement of the floor of the mouth and hyoid suspension were found to be effective in severe OSAS. The changes caused by the operation could best be verified cephalometrically by a more anterior position of the hyoid bone (average change of 11.1 mm).

UI MeSH Term Description Entries
D008297 Male Males
D008334 Mandible The largest and strongest bone of the FACE constituting the lower jaw. It supports the lower teeth. Mylohyoid Groove,Mylohyoid Ridge,Groove, Mylohyoid,Grooves, Mylohyoid,Mandibles,Mylohyoid Grooves,Mylohyoid Ridges,Ridge, Mylohyoid,Ridges, Mylohyoid
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D002508 Cephalometry The measurement of the dimensions of the HEAD. Craniometry
D005147 Facial Bones The facial skeleton, consisting of bones situated between the cranial base and the mandibular region. While some consider the facial bones to comprise the hyoid (HYOID BONE), palatine (HARD PALATE), and zygomatic (ZYGOMA) bones, MANDIBLE, and MAXILLA, others include also the lacrimal and nasal bones, inferior nasal concha, and vomer but exclude the hyoid bone. (Jablonski, Dictionary of Dentistry, 1992, p113) Bone, Facial,Bones, Facial,Facial Bone
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D006928 Hyoid Bone A mobile U-shaped bone that lies in the anterior part of the neck at the level of the third CERVICAL VERTEBRAE. The hyoid bone is suspended from the processes of the TEMPORAL BONES by ligaments, and is firmly bound to the THYROID CARTILAGE by muscles. Lingual Bone,Bone, Hyoid,Bone, Lingual,Bones, Hyoid,Bones, Lingual,Hyoid Bones,Lingual Bones
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults
D000368 Aged A person 65 years of age or older. For a person older than 79 years, AGED, 80 AND OVER is available. Elderly

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