Effect of Different Lateral Condylar Guidance Registration Methods and Articulators on Bilateral Balanced Occlusion of Complete Denture

Abstract

Purpose: This study was conducted to accomplish the most balanced occlusion of the complete denture through comparing between lateral condylar guidance angle records of Hanau Equation, Gothic arch tracing and Computed tomography (CBCT) using arcon and non arcon articulators. Materials and methods: Twelve completely edentulous patients were selected for this study, with age ranging from 50-60 years. Selected patients were free from any temporomandibular disorders or dental diseases. Each patient received a complete denture and then duplicated another one for work. With bilateral balanced occlusion concept. The lateral condylar guidance measured using Hanau equation calculated from protrusive interocclusal records, Gothic arch tracer and Cone beam computed tomography. All records transferred to two types of semi-adjustable articulators Hanau non arcon articulator and Bio-art arcon articulator. Denture adjusted on the both articulator system to measure and achieve the bilateral balanced occlusion. Results: In present study comparison between the three methods of right and left lateral condylar guidance registrations Hanau Equation, Cone Beam CT and Gothic arch tracing on both types of articulators shows insignificant difference between right side (p=0.443) and left side (p=0.094) of lateral condylar guidance and also the balanced occlusion values of right and left side on arcon and non arcon semi-adjustable articulator were statically non-significant. Conclusions: Within the outcomes of this study, it could be concluded that to achieve balanced occlusion of complete denture Hanau equation obtained from inter occlusal records with using of Hanau arcon semi-adjustable articulator will be recommended.