A Study to Evaluate and Compare Right and Left Condylar Discrepancy between Centric Relation and Maximum Intercuspation in Three Age Groups


  • AB Shetty Institute of Dental Sciences, Department of Prosthodontics, Mangalore, India


Background:Since discrepancy between centric relation and maximum intercuspation has been an area of interest for dental fraternity for decades, the study was conducted to expand the concepts of the same when age is taken into consideration.

Objective: This study was conducted to assess and measure the discrepancy between centric relation (CR) and maximum intercuspation (MI) at right and left condyles in three age groups, compare the discrepancy at right and left condyles between three age groups and right and left side condyles within the same age group.

Methods: Sixty healthy subjects were selected and divided into three groups of twenty subjects each. Group I: 18-25 years, Group II: 30-45 years and Group III: more than fifty years. Preliminary impressions were made. Orientation relation was transferred to a semi-adjustable arcon articulator. Subjects were guided into centric relation using Dawson's bimanual manipulation technique and centric interocclusal record was made. The mandibular cast was related to the maxillary cast using centric interocclusal record. The casts were then allowed to fall into maximum intercuspation and the distance that the condylar analogues had moved was measured using Feeler gauge.

Results: The mean CR-MI discrepancy in Group I was 0.417±0.137 mm and 0.364±0.123 mm, Group II was 0.528±0.160 mm and 0.512±0.158 mm and Group III was 0.873±0.228 mm and 0.815±0.172 mm at the right and left condyles respectively.

Conclusion: Within the limitations of the study it was concluded that all the sixty subjects had a CR-MI discrepancy in both left and right condyles. The variation in discrepancy between the three age groups was found to be very highly significant.


Dawson's Bimanual Manipulation, Centric Discrepancy, Temporo-Mandibular Disorders, Age, Centric Relation.

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Keshvad A, Winstanley RB. An appraisal of the literature on centric relation. Part III. J Oral Rehabil 2001 Jan;28:55-63.

Carlsson GL. Insights into occlusal problems through the use of centric relation procedures. Part two. Northwest Dent 2007 Mar-Apr;86:3139.

Utt TW, Meyers CE Jr, Wierzba TF, Hondrum SO. A three dimensional comparison of condylar position changes between centric relation and centric occlusion using the mandibularposition indicator. Am J Orthod Dentofacial Orthop 1995 Mar;107:298-308.

Hidaka O, Adachi S, Takada K. The difference in condylar position between centric relation and centric occlusion in preposition between centric relation and centric occlusion in pretreatment japanese orthodontic patients. Angle Orthod 2002 Aug;72: 295-301.

Pullinger A, Seligman D. Quantification and validation of predictive values of occlusal variables in temporomandibular disorders using a multifactorial analysis. J Prosthet Dent 2000;83:66-75.

Dawson PE. Evaluation, Diagnosis and Treatment of Occlusal Problems. Is ted. 1st ed. St Louis: CV Mosby Co; 1974.p.213.

Van Blarcom CW, Campbell SD, Carr AB. The Glossary of Prosthodontic Terms. J Prosthet Dent 2005 Jul;94:1092.

Posselt U. Terminal hinge movement of the mandible. J Prosthet Dent 1957;7:787-9.

Beard CC, Clayton JA. Studies on the validity of the terminal hinge axis. J Prosthet Dent 1981;46:185-191.

Bowley JF, Pierce CJ. Reliability and validity of a transverse horizontal axis location instrument. J Prosthet Dent 1990;64:646-650.

Balthazar YM, Ziebert GJ, Donegan SJ. Effect of interocclusal records on transverse axis position. J Prosthet Dent 1984;52:894-9.

Okeson JP. Management of temporomandibular disorders and occlusion. 6th ed. St. Louis Toronto: Mosby; 2008.

Henriques JCG, Fernandes Neto AJ, Almeida GA, Machado NAG, Lelis ER. Cone-beam tomography assessment of condylar position discrepancy between centric relation and maximal intercuspation. Braz Oral Res 2012 Jan-Feb;26:29-35.

Troeltzsch M, Cronin RJ, Brodine AH, Frankenberger R, Messlinger R. Prevalence and association of headaches, temporomandibular joint disorders and occlusal interferences. J Prosthet Dent 2011;105:410-7.

Kirveskari P. The role of occlusal adjustment in the management of temporomandibular disorders. Oral Surg Oral Meal Oral Pathol Oral Radiol Endod 1997;83:87-90.


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