A Comparative study to measure the horizontal condylar guidance obtained by protrusive interocclusal records and panoramic radiographic images in completely edentulous patients

  • Arjun Bhandari Gandaki Medical College, Pokhara http://orcid.org/0000-0002-1555-2065
  • Archana Manandhar Gandaki Medical College, Pokhara
  • Raj Kumar Singh B.P. Koirala Institute of Health Sciences, Dharan
  • Pramita Suwal B.P. Koirala Institute of Health Sciences, Dharan
  • Prakash Kumar Parajuli B.P. Koirala Institute of Health Sciences, Dharan
Keywords: Horizontal condylar guidance, panoramic radiograph, protrusive interocclusal records

Abstract

Background & Objectives:

The study was conducted with objective to compare the horizontal condylar guidance (HCG) obtained by protrusive interocclusal records and panoramic radiographic images in completely edentulous patients.

Materials & Methods:

The horizontal condylar guidance was measured in 25 completely edentulous patients by protrusive interocclusal records using zinc oxide eugenol paste through a face bow transfer (HanauTM Spring bow, Whip Mix Corporation, USA) to a semi-adjustable articulator (HanauTM Wide-Vue Articulator, Whip Mix Corporation, USA).  In the same patients, HCG was traced in the panoramic radiograph. The angles formed by the intersection of two lines: Frankfurt’s horizontal plane and posterior slope of articular eminence was measured using protractor to represent the horizontal condylar guidance angle on each side.

Results:

The mean difference between the horizontal condylar guidance angles values obtained using protrusive interocclusal record and panoramic radiograph was 2.68 degrees and 3.40 degrees for the right and the left side respectively, with the panoramic radiograph values being higher. This difference between the values was found to be highly significant between the two methods for the right side (t = 2.70, p = 0.012) and left side (t = 3.69, p = 0.001). A significant positive correlation was found between the horizontal condylar guidance obtained from protrusive interocclusal record and panoramic radiograph for the right (r = 0.643, p = 0.001) and left sides (r = 0.622, p = 0.001) separately.

Conclusion:

The panoramic radiographic tracing can be used to calculate the mean horizontal condylar guidance in the completely edentulous patients and these values can be used to programme semi-adjustable articulators avoiding the cumbersome process of obtaining protrusive interocclusal records.

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Author Biographies

Arjun Bhandari, Gandaki Medical College, Pokhara

Department of Prosthodontics

Lecturer

Archana Manandhar, Gandaki Medical College, Pokhara

Department of Conservative Dentistry and Endodontics

Lecturer

Raj Kumar Singh, B.P. Koirala Institute of Health Sciences, Dharan

Department of Prosthodontics

Professor

Pramita Suwal, B.P. Koirala Institute of Health Sciences, Dharan

Department of Prosthodontics

Additional Professor

Prakash Kumar Parajuli, B.P. Koirala Institute of Health Sciences, Dharan

Department of Prosthodontics

Associate Professor

Published
2018-03-30
How to Cite
Bhandari, A., Manandhar, A., Singh, R., Suwal, P., & Parajuli, P. (2018). A Comparative study to measure the horizontal condylar guidance obtained by protrusive interocclusal records and panoramic radiographic images in completely edentulous patients. Journal of College of Medical Sciences-Nepal, 14(1), 21-27. https://doi.org/10.3126/jcmsn.v14i1.18947
Section
Original Articles