【摘要】：目的測(cè)量并分析上頜后牙牙根與毗鄰解剖結(jié)構(gòu)的位置關(guān)系,為臨床治療提供參考依據(jù)。方法從山東大學(xué)口腔醫(yī)院CBCT數(shù)據(jù)庫中選取符合納入標(biāo)準(zhǔn)的患者資料120例,應(yīng)用GALAXIS軟件觀察各牙根與上頜竇底的關(guān)系分型并統(tǒng)計(jì)各類型的發(fā)生率,測(cè)量根尖至上頜竇底的垂直距離和牙根中點(diǎn)至相鄰牙槽骨外板的水平距離并進(jìn)行統(tǒng)計(jì)學(xué)分析。結(jié)果根尖與上頜竇底有骨板相隔的類型發(fā)生率最高;上頜第二磨牙的近中頰根根尖至上頜竇底的垂直距離最短(P0.05);第二前磨牙牙根和第二磨牙腭根根尖至上頜竇底的垂直距離最長(P0.05);上頜第一磨牙的近中頰根距頰側(cè)骨板的水平距離最近(P0.05);上頜第一磨牙的腭根距腭側(cè)骨板的水平距離最近(P0.05)。結(jié)論上頜后牙牙根與上頜竇底及牙槽骨板關(guān)系密切,在治療前應(yīng)仔細(xì)觀察;CBCT可以清晰顯示上頜后牙區(qū)各解剖結(jié)構(gòu)間的關(guān)系,適用于治療前的精確診斷和設(shè)計(jì)。
[Abstract]:Objective to measure and analyze the relationship between the root of maxillary posterior teeth and its adjacent anatomical structure, and to provide reference for clinical treatment. Methods 120 patients were selected from CBCT database of Shandong University Stomatology Hospital. The relationship between each root and maxillary sinus floor was observed by GALAXIS software and the incidence rate of each type was counted. The vertical distance from the root tip to the maxillary sinus floor and the horizontal distance from the midpoint of the root to the adjacent alveolar external plate were measured and statistically analyzed. Results the incidence of the type of bone plate separated from the base of maxillary sinus was the highest, and the vertical distance between the proximal buccal root tip of maxillary second molar and the floor of maxillary sinus was the shortest (P0.05). The vertical distance between the root tip of the second premolar and the palatal root of the second molar and the bottom of the maxillary sinus was the longest (P0.05), and the horizontal distance between the proximal buccal root of the maxillary first molar and the buccal bone plate was the closest (P0.05). The maxillary first molar had the closest horizontal distance from the palatine root to the palatine bone plate (P0.05). Conclusion the root of maxillary posterior teeth is closely related to the floor of maxillary sinus and alveolar bone plate and should be carefully observed before treatment. CBCT can clearly show the relationship between the anatomical structures of maxillary posterior teeth and is suitable for accurate diagnosis and design before treatment.
【作者單位】： 山東大學(xué)口腔醫(yī)學(xué)院種植中心;山東省口腔生物醫(yī)學(xué)重點(diǎn)實(shí)驗(yàn)室;
【基金】：山東省財(cái)政專項(xiàng)基金(魯財(cái)社指[2012]119號(hào)) 國家自然科學(xué)基金(81300885) 山東省自然科學(xué)基金(ZR2013HQ052,ZR2013HM086)
【分類號(hào)】：R816.98

【共引文獻(xiàn)】

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本文編號(hào)：2420775