- 期刊
上頜竇中隔之位置與盛行率及其與臼齒缺失和上頜竇氣室化之關聯性
Prevalence and Location of Maxillary Sinus Septa and the Relationship with the Absence of Molars and Sinus Pneumatization
摘要
背景：這篇研究的目的在評估上頜竇中隔的發生位置、形態與盛行率並決定其與臼齒缺失及上頜竇氣室化的關聯性。方法：本研究使用錐狀射束電腦斷層，分析134位尋求植牙的病患上頜竇中隔存在的情形。中隔的高度超過2.5 mm才會被納入，記錄它們的高度、發生位置及走向。上顎臼齒的缺失、上頜竇黏膜的改變與上頜竇氣室化的程度也做評估以決定其與中隔發生之關聯性。結果：中隔的盛行率，以病人爲單位是38.1%(51/134)，以上頜竇爲單位是25.7%(69/268)，以中隔爲單位是28.4%(76/268)。最常發生中隔的位置是在白齒區域，而最常出現的走向是頰－顎側方向。中隔平均兩度爲5.73 mm，其中原發中隔顯著地較非原發中隔（中隔的所在位置在無牙脊的靠頭側）來的高。中隔的存在與病患的年齡、性別、上頜竇黏膜改變或臼齒缺失無關，但與上頜竇的氣室化有顯著的相關。結論：在做上顎後牙區植牙，如遇到氣室化的上頜竇須特別小心，因爲可能會存在中隔而提高做鼻竇增高手術的併發症產生。
並列摘要
Background: this study evaluated the prevalence, location, and morphology of maxillary sinus septa and determined the relationship among the presence of septa, absence of molars, and sinus pneumatization. Methods: in this study, the presence of maxillary sinus septa was analyzed in 134 patients undergoing implant treatment by using cone-beam computed tomography. septa with a height of more than 2.5 mm were included, and their height, location, and orientation were recorded. the absence of maxillary molars, sinus mucosal change, and extent of pneumatization were also evaluated to determine their relationship with the occurrence of maxillary sinus septa. Results: the prevalence of septa was 38.1% at the patient level (51/134), 25.7% at the sinus level (69/268), and 28.4% at the septum level (76/268). the most frequent location and orientation of septa were the molar region and the bucco-palatal direction. the average septum height was 5.73 mm, with primary septa being significantly higher than nonprimary septa (the septa located cranially to an edentulous ridge). the presence of septa was not related to age, sex, sinus mucosal change, or absence of molars but was significantly correlated with pneumatization. Conclusions: special caution must be taken when encounter pneumatized maxillary sinus during implant surgery at posterior maxilla, because possible the presence of sinus septa may increase the risk of the surgical complication of sinus floor elevation.