Purpose: Was to compare between tracing method and Cone Beam imaging for recording Bennett movement and lateral condylar angle. Material and methods: Ten completely edentulous patients were selected with ages ranged from 50-60 years, with average age 55years. Each patient received complete denture and teeth were arranged according to balanced occlusion concept. The lateral condylar angle was measured by Gothic arch tracer and with Cone Beam imaging for each side. The Immediate Bennett shift was measured using condylar tracing and the Cone Beam imaging for each condyle during its lateral shift. results: The result of this study showed that there was no significant difference between the Bennett angle measured by Gothic arch and the angle that get from Cone Beam and also there is no significant difference between the reading of immediate Bennett shift recorded by condylar tracer or Cone Beam. Conclusion:Within the limitation of this study, it can be concluded that, the Cone Beam recording can replace tracing method for recording Bennett angle and Bennett shift. IntroduCtIonThe purpose of the guidelines for good occlusal practice is to reduce the risk of damage that might occur to the related tissues of the masticatory system, leading to increase the chances of a healthy function. This will reduce the liability to supporting tissue disease, mechanical failure of the denture and TMJ dysfunction or pain. Dentists can positively influence these factors as part of their care (1) .

Purpose: To evaluate the effect of different horizontal condylar guidance registration methods and articulators on bilateral balanced occlusion of complete denture. Materials and Methods: Twelve completely edentulous patients with ages ranging from 50-60 years old were selected from the outpatient clinics of the Removable Prosthodontic Department, Faculty of Dental Medicine for Girls, Al-Azhar University. Twelve complete dentures were constructed according to the balanced occlusal concept and then duplicated for experimental work. Horizontal condylar guidance angles were measured using three different methods; the protrusive interocclusal wax record method, tracing method, and Cone Beam Computed Tomography (CBCT) scan. The angles were adjusted on two types of articulators; Arcon and non-Arcon articulators.The effect of each method and the effect of the two types of articulators on bilateral balanced occlusion were studied. Results: The result of this study showed that there was no significant difference in bilateral balanced occlusion when using different types of articulators or different horizontal condylar guidance registration methods during the construction of complete denture. Conclusion: Within the limitation of this study, it can be concluded that the Hanau system with the wax protrusive record may be the most practical way to obtain the desired relative horizontal condylar angle.