A newer technique to program a semi adjustable articulator

Abstract

Introduction:The difficulty in reproducing accurate angle of condylar guidance in semi-adjustable articulators.Purpose:The purpose of this study was to determine the correlation between the angle of horizontal condylar inclination obtained on a semi-adjustable articulator and the corresponding angle traced on a temporomandibular joint (TMJ) radiograph in completely edentulous subject.Materials and Methods:The horizontal condylar inclination angle was obtained in a semi-adjustable articulator by means of height tracer (extra oral tracing device) and interocclusal records to program the articulator in 21 subjects. TMJ radiograph were recorded by the same operator with same orthopantomogram (OPG) machine (planmeca). Tracings of inclines of articular eminence on the radiograph were compared with the angle obtained on a semi-adjustable articulator. Each measurement was made using manual methods of measuring angle. The results were subjected to the Pearson correlation statistical analysis (α =0.01).Results:The outline of the articular eminence in a TMJ tomogram radiographic image was identified and traced. A significant correlation was found between the horizontal condylar inclination on a semi-adjustable and the corresponding TMJ tomogram radiographic image for both right (R = 0.789; P = 0.001) and left (i = 0.747; P = 0.004) sides.Conclusion:The articular eminence traced on a TMJ tomogram image represents the horizontal condylar inclination with a mean difference of 5° in 21 subjects evaluated.

Comparative Analysis of Sagittal Condylar Guidance Recorded by Intraoral Gothic Arch Tracing and Panoramic Radiograph in Completely Edentulous Patients

“…Even with the flabby or loose ridges with excessive soft tissue overgrowth, the stability of record base is compromised. 11 Christensen 12 in their study advocated the methods of sagittal condylar guidance. Author found radiographic method better against clinical method.…”

A Study to Check Correlation between Panoramic Radiographic Image and Protrusive Inter-Occlusal Record in Male and Female Dentulous Patients for Depicting Condylar Guidance Angle: A Pilot Study

“…This allows the maximum benefit from using an articulator and facilitates in the fabrication of accurate restorations with a minimal time required for intraoral adjustment. The inclination of condylar path during protrusive movement may vary from steep to shallow and differ among patients By looking at the condylar guidance of the individual patieny using inter-occlusal method the panoramic radiographic image may be a value to program the semi adjustable articulator [11,12,13].…”

Accuracy of radiographic and protrusive occlusal record methods in determining condylar guidance angles: a systematic review and meta-analysis

“…Typically, 26 studies were conducted in India, 1,7,11,13,14,19,20,[23][24][25][26][27]29,30,32,[34][35][36][37][38][39][40][41][42][43][44] two each in Iran 8,28 and Saudi Arabia 22,33 and one each in Nepal, 21 Korea 31 and Poland. 9 In total, 20 studies included were conducted among dentate patients having a total sample size of 595 and age ranged from 18-43 years 1,19,20,21,25,27,30,32,34,[37][38][39][40]42,44 while 15 studies included were conducted among edentulous patients having a total sample size of 277 and age ranged from 35-75 years. [7][8][9]11,…”