diographic Images And Interocclusal Records In Protrusive Movements

Background and Objective: condylar slope is a remarkable consideration in prosthodontics rehabilitation. If the condylar slope is not properly recorded, it can cause occlusal interactions. In Inter-occlusal records, the purpose of the mandibular pro-motion movements is to arrange the condylar articulator components so that the created condylar slope is similar to patient s one.In panoramic radiography, the articulatory line is well visible; it can therefore be used to determine the condylar slope.The aim of this study was correlating the condylar slope size in panoramic radiography and interocclusal records in protrusive movements. Matrials and methods: This is a descriptive-analytic study. Both jaws were molded in patients. The upper jaw’s cast was mounted on the articulator using FaceBow and the lower cast was mounted by using maximum intercuspation relationship. To record protrusive movements, the patient was asked to move their mandible to the point in which the jawbone were edge to edge. Condylar slope was also determined on radiographic images. Data was analyzed by SPSS16. Findings: Mean slope of the right interocclusal record was 33.9 ± 19.3 and for the left side, it was 33.79 ± 3.22. Right panoramic radiography has been 35.88 ± 3.37 and for the left it was 35.93 ± 3.27. The correlation between the gradients recorded by panoramic radiography and interocclusal records in protrusive movements in the right condyle was (r = 0.81, p <0.001) and it was (r = 0.83, p <0.001) in the left condyle. Conclusion: a significant difference was found in the condylar slope in panoramic radiography and interocclusal recording method in the left and right sides. Therefore, panoramic radiography is not a reliable diagnostic tool for measuring condylar slope.

کلیدواژه ها:

Condylar ، Condylar slope ، Panoramic.