Diagnostic imaging for conjecture and assessment of prognosis in dental implant treatment

牙种植治疗中诊断成像的推测和预后评估

• 批准号: 09671938
• 负责人: ARIJI Eiichiro
• 金额: $ 1.98万
• 依托单位: Aichi-Gakuin University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1997
• 资助国家: 日本
• 起止时间: 1997 至 1999
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-09671938/
• 关键词: dental implant; computed tomography; tomography

1) Diagnostic imaging for conjecture of prognosis in dental implant treatmentWe established a method to measure the edentulous alveolar process on reformatted CT images for conjecture of prognosis in dental implant treatment. CT images of 83 patients (34 males and 49 females) were examined. The results were as follows ;The angle of inclination of the edentulous alveolar process was similar in the central and lateral incisor regions, but that in the canine region was larger. The height and width in the edentulous alveolar process of the central incisor region were large. The measurement values of the angle of inclination, height and which in the edentulous alveolar process of the central incisor region are able to become the factors for the conjecture of prognosis.2) Diagnostic imaging for assessment of prognosis in dental implant treatmentWe assessed the usefulness of cross-sectional tomography using a panoramic in postoperative diagnostic imaging of dental implants.In the site of a total of 15 dental implants, panoramic radiography and cross-sectional radiography were performed, and we evaluated the bone change surrounding the dental implant in each radiograph. The results were as follows ;Bone change was seen in 7 of 15 sites on panoramic radiography. On cross-sectional tomograms, bone change could be evaluated bucco-lingually. Moreover, the bone change was seen only on cross-sectional tomography in two dental implant sites. Although the image of objective dental implants on cross-sectional tomography were superimposed obstructive shadows from the neighboring dental implants in 12 of 15 dental implant sites, they did not seriously disturb the diagnoses.We believe the cross-sectional tomography using a panoramic machine is useful in diagnostic imaging for assessment of prognosis of dental implant treatment.

1)种植体治疗预后推测的影像诊断我们建立了一种在CT图像上测量无牙牙槽突的方法，用于种植体治疗预后的推测。对83例患者(男34例，女49例)进行了CT检查。结果表明：中、侧切牙区无牙牙槽突倾角相近，尖牙区倾斜角较大。中切牙无牙牙槽突的高度和宽度均较大。对15颗种植体进行全景X线片和横断面X线片检查，对种植体进行全景断层扫描，评价其在种植体术后诊断中的价值。结果显示：15个部位中有7个部位有骨质改变。在横断面断层图上，可以从口腔舌面上评估骨骼的变化。此外，只有在两个牙种植部位的横断面断层扫描才能看到骨的变化。虽然在15个种植区中，12个种植区的横断面图像上有来自邻近种植体的遮挡阴影，但它们并没有严重干扰诊断。我们相信，使用全景机的断层扫描在诊断影像中是有用的，以评估种植体治疗的预后。

项目成果

有地榮一郎,内藤宗孝 他: "パノラマ装置によるインプラント断層撮影の改良"日本口腔科学会雑誌. 48. 655 (1999)

Eiichiro Ariji、Munetaka Naito 等人：“使用全景设备改进种植体断层扫描”日本口腔医学会杂志 48. 655 (1999)。

有地榮一郎,内藤宗孝 他: "デンタルCTを用いた欠損部歯槽骨形態の計測"口腔科学会雑誌. 47. (1998)

Eiichiro Ariji、Munetaka Naito 等人：“使用牙科 CT 测量缺陷区域的牙槽骨形态”，口腔医学会杂志 47。（1998 年）

内藤宗孝,有地榮一郎他: "パノラマ装置によるインプラント断層撮影法の改良 その2.断層面の撮影装置間差異とAZ3000特殊断層プログラムの使用" 歯科放射線.

Munetaka Naito、Eiichiro Ariji 等人：“使用全景设备改进种植体断层扫描第 2 部分。断层扫描平面中的成像设备与 AZ3000 特殊断层扫描程序的使用之间的差异”牙科放射学。

Ariji,E. and Naitoh,M.et al: "Measurement of edentulous alveolar process of the Maxilla by reformatted CT images"J.Jpn.Soc.Oral Implant. 12. 246-254 (1999)

阿里吉，E.

内藤宗孝,有地榮一郎他: "パノラマ装置によるインプラント断層撮影法の改良 その1.AZ3000特殊断層プログラムとその精度" 歯科放射線.

Munetaka Naito、Eiichiro Ariji 等人：“使用全景设备改进种植体断层扫描第 1 部分。AZ3000 特殊断层扫描程序及其准确性”牙科放射学。