Shetty Ujwala Shivarama, Burde Krishna N, Naikmasur Venkatesh G, Sattur Atul P
A J Institute of Dental Science and Hospital, Mangalore, Karnataka, India.
SDM College of Dental Science and Hospital, Dharwad, Karnataka, India.
Radiol Res Pract. 2014;2014:106059. doi: 10.1155/2014/106059. Epub 2014 Sep 21.
Objective. To evaluate the efficiency of DVT in comparison with OPG in the assessment of bony condylar changes in patients of TMJ pain. Methods. 100 temporomandibular joints of 62 patients with the complaint of temporomandibular joint pain were included in the study. DVT and OPG radiographs were taken for all the 100 joints. Three observers interpreted the DVT and OPG radiograph for the bony changes separately for two times with an interval of one week. The bony changes seen in the condyle were given coding from 0 to 6. (0: Normal, 1: Erosion, 2: Flattening, 3: Osteophyte, 4: Sclerosis, 5: Resorption, and 6: other changes). Interobserver and intraobserver variability was assessed with one-way ANOVA statistics. Z test was used to see the significant difference between OPG and DVT. Results. In the present study the interexaminer reliability for OPG and DVT was 0.903 and 0.978, respectively. Intraexaminer reliability for OPG and DVT was 0.908 and 0.980, respectively. The most common condylar bony change seen in OPG and DVT was erosion followed by flattening and osteophyte. There was significant difference between OPG and DVT in detecting erosion and osteophytes. The other changes observed in our study were Ely's cyst, pointed condyle, and bifid condyle. All the bony changes are more commonly seen in females than males. Conclusion. DVT provides more valid and accurate information on condylar bony changes. The DVT has an added advantage of lesser radiation exposure to the patient and cost effectiveness and could be easily accessible in a dental hospital.
目的。评估在颞下颌关节疼痛患者中，双能断层骨扫描（DVT）与全景曲面断层片（OPG）在评估髁突骨质改变方面的效率。方法。本研究纳入了62例主诉颞下颌关节疼痛患者的100个颞下颌关节。对所有100个关节均拍摄了DVT和OPG X线片。三名观察者对DVT和OPG X线片的骨质改变分别进行两次解读，间隔为一周。将髁突上观察到的骨质改变从0到6进行编码。（0：正常，1：侵蚀，2：扁平，3：骨赘，4：硬化，5：吸收，6：其他改变）。采用单向方差分析统计评估观察者间和观察者内的变异性。使用Z检验观察OPG和DVT之间的显著差异。结果。在本研究中，OPG和DVT的检查者间可靠性分别为0.903和0.978。OPG和DVT的检查者内可靠性分别为0.908和0.980。在OPG和DVT中最常见的髁突骨质改变是侵蚀，其次是扁平及骨赘。在检测侵蚀和骨赘方面，OPG和DVT之间存在显著差异。我们研究中观察到的其他改变为伊利囊肿、尖状髁突和双髁突。所有骨质改变在女性中比男性中更常见。结论。DVT能提供关于髁突骨质改变更有效和准确的信息。DVT的额外优势在于对患者的辐射暴露较少、具有成本效益且在牙科医院易于获取。
