한국인 위턱굴의 해부학적 연구

Abstract

The maxillary sinus which is the largest paranasal sinus is a significant anatomic structure for dental surgery, i.e. implant placement, sinus floor elevations etc. Also, the maxillary sinus septa present in the floor of maxillary sinus can make the complete preservation of the sinus membrane more difficult. The objective of this study was to evaluate the boundary of anterior and posterior margin of maxillary sinus, to determine the prevalence, location of maxillary sinus septa, and to measure the distance from the floor of nasal cavity to the floor of maxillary sinus. Fifteen cadaver heads(10 males and 5 females) obtained from the college of medicine of Chosun University were examined, with the age at death ranging from 41 to 84 years(median: 53.3 years). 1. The anterior border of sinus was revealed that 18.75% were located in the canine, 31.25% in the first premolar, 25% in the second premolar, and 25% in the first molar. 2. The posterior border of sinus was that 12.5% were located in the second molar, 31.25% in the mid point between the distal surface of second molar and the maxillary tuberosity, and 56.25% in the maxillary tuberosity region. 3. The prevalence of one or more septa per sinus was found to be 35%. 4. The main location of the septa was the second molar region(44.44%), followed by the first molar region(33.33%) and second premolar region(22.22%). 5. The distance from the floor of nasal cavity to the floor of maxillary sinus varied among +1 and -12.5mm(mean -4.875mm). To avoid complications during implant placement or sinus floor elevations, a thorough and detailed knowledge of the maxillary sinus is demanded.