3. GPT 1’ defines centric relation as “The most
retruded relation of the mandible to the
maxillae when the condyles are in the most
posterior unstrained position in the glenoid
fossae from which lateral movement can be
made, at any given degree of jaw separation.”
4. GPT 8 is “The maxillomandibular relationship in which the
condyles articulate with the thinnest avascular portion of
their respective discs with the complex in the anterior
superior position against the slopes of the articular
eminences. This position is independent of tooth contact.
This position is clinically discernible when the mandible is
directed superior and anteriorly. It is restricted to a purely
rotary movement about the transverse horizontal axis”
5. Anatomical
S. Davies and R. M. J. Gray, What is occlusion? British Dental Journal, Vol 191, No. 5,
September 2001
6. Conceptual
S. Davies and R. M. J. Gray, What is occlusion? British Dental Journal, Vol 191, No. 5,
September 2001
7. Geometrical
S. Davies and R. M. J. Gray, What is occlusion? British Dental Journal, Vol 191, No. 5,
September 2001
17. Physiological method
Tactile sense or interocclusal record method
It involves 2 steps.
First a tentative centric jaw relation is recorded using
wax occlusal rims.
In the second step an interocclusal check record is
made using the trial denture during try-in
20. Physiological method
Pressure method
The lower occlusal rim is fabricated to be of excess
height
occlusal rim is softened in a water bath and inserted
carefully into the patient’s mouth
patient is guided to close his mouth in centric relation
28. Indications
Well healed broad edentulous ridges.
Adequate interarch space
29. Contraindications
Severely resorbed ridges
Excessively flabby ridges
Instability of denture bases
Decreased arch space
In patients with
temporomandibular joint disorders
In patients with abnormal jaw
relation
30. Greber 1966
1) Classical pointed form
2) Classical flat form
3) Asymmetrical form
4) Miniature tracing
5) Vertical line protrudes beyond the arrow point
31.
32. Swallowing
Chin point guidance
Chin point guidance with anterior jig
Bilateral manipulation
Martin E. Kantor, Sidney I. Silverman and Lawrence Garfinkel ,Centric-relation
recording techniques-a comparative investigation,J Prosthet Dent
1972:28;6,593-600
42. Unstability of records
Resiliency and displaceability of denture bearing
tissues
Materials used in record making
Equipment used in record making
Lack of muscle coordination by the patient
Use of articulators not adjusting to all introcclusal check
records
43.
44.
45.
46.
47. Ansari.I.H, A one appointment complete denture impression and centric relation record
method for compromised complete denture patients, J Prosthet. Dent,December,
1997:78;320-323
48. Ansari.I.H, A one appointment complete denture impression and centric relation record
method for compromised complete denture patients, J Prosthet. Dent,December,
1997:78;320-323
49. Bissasu.M, Use of the tongue for recording centric relation for edentulous patients, J
Prosthet Dent 1999;82:369-70
50. Sheldon Winkler,Essentials of Complete
Denture Prosthodontics,2nd edition,A.I.B.T.S
publishers and distributors, India, pp-183-201
John.J.Sharry, Complete denture
prosthodontics, 3rd edition, Mcgraw-Hill book
company,USA, pp-215-222
Charles.L.Bolender,Prosthodontic treatment for
edentulous patients,12th edition,2003,Mosby
publications,St.Louis,pp-268-297
A.O Rahn and C.M Heartwell,Textbook of
complete dentures,4th edition,1993,Lea and
Fabiger,USA,pp-290-308
51. Deepak Nallaswamy,Textbook of
Prosthodontics, Ist edition,2003,Jaypee
publishers,New Delhi,pp-108-151
A.O Rahn and C.M Heartwell,Textbook of
complete dentures,4th edition,1993,Lea and
Fabiger,USA,pp-290-308
Granger.E.R. Centric relation, J Prosthet Dent
1953:2;2 pp:160-177
Cohen.R, Hinge axis and its practical
application in the determination of centric
relation,Jprosthet Dent 1960:20;2 pp:248-257
52. Martin E. Kantor, Sidney I. Silverman and
Lawrence Garfinkel Centric- relation recording
techniques-a comparative investigation,J Prosthet
Dent 1972:28;6,59
James Hart long, An instrument for locating
centric relation ,J Prosthet Dent 1973:30;1,50-52
William E. Avant , Using the term “centric”, J
Prosthet Dent 1971:25;1,pp:12-15
53. Lawrence A. Weinberg, Temporomandibular
joint function and its on centric relation,J
Prosthet Dent 1973:30;2,176-195
Ansari.I.H, A one appointment complete
denture impression and centric relation record
method for compromised complete denture
patients, J Prosthet. Dent,December,
1997:78;320-323
Bissasu.M, Use of the tongue for recording
centric relation for edentulous patients, J
Prosthet Dent 1999;82:369-70.
54. S. Davies and R. M. J. Gray, What is
occlusion? British Dental Journal, Vol 191, No.
5, September 2001,
Thomas E.J. Shanahan, Physiologic vertical
dimension and centric relation ,J Prosthet
Dent 2004: 91;3,203-209
13) Yoshiyuki Watanabe,Observation of
horizontal mandibular positions in an
edentulous patient using a digital gothic arch
tracer:A clinical report,J Prosthet Dent 2004
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