The concept of the sagittal condylar guidance: biological fact or fallacy?

Christensen, Larry; Slabbert, J.C.G.

doi:10.1111/j.1365-2842.1978.tb00384.x

Cited by 32 publications

(20 citation statements)

References 12 publications

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“…The difference in the values obtained by the three methods supports the findings of authors such as Brewka[5] who reported that radiographic methods and clinical methods are in much disagreement and Christensen and Slabbert[21] who reported that “no radiographically determined sagittal condylar guidance angle coincided with that obtained with the use of intra-oral records. The radiographically determined angle showed a greater mean value than that determined by intra-oral records.” While comparing the two cephalometric methods, a closer correlation to the clinical method was found by the protrusive method of HCG determination [ P < 0.05, Table 2].…”

Section: Discussionsupporting

confidence: 81%

“…The protrusive condylar path was obtained by joining the centers of the condyles in maximum intercuspation and in the protrusive position. The angle between the protrusive condylar path and the FH plane was measured and termed as the HCG by “protrusive method.”[21] Second, HCG was determined as the angle between the tangent to the posterior slope of the articular eminence and the FH plane. This was designated as the HCG by “tangent method”[828] [Figure 3].…”

Section: Methodsmentioning

confidence: 99%

“…The radiographic method of recording the HCG was introduced in the 1970s by authors such as Corbett et al .,[19] Ingervall (1974),[20] and Christensen and Slabbert[21] to overcome the drawbacks of clinical methods. It has been suggested that radiographic methods record condylar guidance more accurately than other methods as they involve stable bony landmarks.…”

Section: Introductionmentioning

confidence: 99%

“…It has been suggested that radiographic methods record condylar guidance more accurately than other methods as they involve stable bony landmarks. [21] However, the values obtained using the radiographic methods have been found to be inconsistent with those obtained using the clinical methods, and the exact correlation between the two methods has not been established. [21] Few radiographic methods have been introduced to determine the HCG but which method determines the HCG most closely to the clinically obtained value has not yet been mentioned in the literature.…”

Section: Introductionmentioning

confidence: 99%

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A comparative study to correlate between clinically and radiographically determined sagittal condylar guidance in participants with different skeletal relationships

Singh¹,

Das²,

Bhattacharyya³

et al. 2017

J Indian Prosthodont Soc

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Context:Many authors have conducted studies that determine horizontal condylar guidance (HCG) using various methods, articulator systems, and recording materials. However, there is a dearth of literature on variability existing in HCG in individuals with different skeletal relationships. This study is an attempt to verify whether such a difference exists or not.Aims:The aim of this study is to determine and correlate the HCG in individuals with Angle's Class I, Class II, and Class III malocclusion using radiographic and clinical methods.Settings and Design:HCG was recorded for thirty individuals, ten of each class. For each individual, HCG was recorded clinically as well as radiographically.Subjects and Methods:Clinically, HCG was recorded using protrusive check bites and a semi-adjustable articulator. Radiographically, two methods were employed. First, a “tangent method” wherein the angle made by a tangent to the posterior slope of articular eminence with the Frankfurt horizontal (FH) plane was considered as the HCG, and second, a “protrusive method” where the position of the condyle at maximum intercuspation and 6 mm protrusion were traced, and the angle this path made with the FH plane was recorded as the HCG.Statistical Analysis:Descriptive statistical analysis along with Tukey's test and analysis of variance was used to calculate and compare the mean values. Pearson correlation coefficient was used to establish correlation between various means.Results:A significant difference in the HCG of three skeletal relationships was seen, with Class II having a steeper angle than the other two. Among the various methods used, a correlation was found between the clinical and the protrusive method; however, the tangent method yielded greater values of HCG.Conclusions:The average value of HCG should not be used as it differs according to the skeletal relationship. Radiographic method can be used to yield consistent HCG; however, the protrusive method should be employed.

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Section: Discussionsupporting

confidence: 81%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A comparative study to correlate between clinically and radiographically determined sagittal condylar guidance in participants with different skeletal relationships

Singh¹,

Das²,

Bhattacharyya³

et al. 2017

J Indian Prosthodont Soc

View full text Add to dashboard Cite

show abstract

“…Brewka15 in 1981 stated that radiographic methods and clinical methods are in disagreement. Christensen and Slabbert12 in a 1978 review has stated that "no radiographically determined sagittal condylar guidance angle coincided with that obtained with the use of intra-oral records. The radiographically determined angle showed a greater mean value than that determined by intra-oral records".…”

Section: Discussionmentioning

confidence: 98%

A comparative study to measure the condylar guidance by the radiographic and clinical methods

et al. 2012

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PURPOSE.The study was conducted to compare the radiographic and clinical methods of measuring the horizontal condylar guidance (HCG) values. MATERIALS AND METHODS. The condylar guidance was measured using the radiographic (CT scan) and three clinical methods i.e. the wax protrusive records, Lucia jig record and intraoral central bearing device in 12 patients aged between 20-40 years irrespective of sex. The records were taken and transferred on the semi-adjustable articulator to record the HCG values. The CT scan was taken for 3D reconstruction of the mid facial region. Frankfort horizontal plane (FHP) and a line extending from the superior anterior most point on the glenoid fossa to the most convex point on the apex of articular eminence (AE) was marked on the CT scan. An angle between these two lines was measured on both right and left sides to obtain condylar inclination angle. Three interocclusal protrusive wax and jig records were taken and transferred to the semi adjustable articulator. Three readings were recorded on each side. Similarly the records were taken and transferred to the same articulator using the intra oral central bearing device to record the readings.

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Centric Relation Definition: A Historical and Contemporary Prosthodontic Perspective

Palaskar

Murali²,

Bansal³

2012

J Indian Prosthodont Soc

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Centric relation (CR) is a core topic of dentistry in general and prosthodontics in particular. The term CR has become thoroughly confusing because of many conflicting definitions. Unfortunately definition of CR changed repeatedly over past ten decades. All the existing definitions in the dental literature, for the past 81 years, are segregated into definitions from 1929 to 1970, 1970-1980, and 1980-2010 and are critically analyzed. Both PubMed (key words: centric relation/centric jaw relation) and hand searches were employed, from citation in other publications, to identify relevant articles in English language peer reviewed PubMed journals from 1956 to 2010; although the review is from 1929. Numerous definitions for CR have been given, however, no consensus exists and the definition given by a current glossary of prosthodontic terms is confusing. It relates CR to many clinically invisible parts and cannot guide a dental surgeon to record the CR following its description. The purpose of this article is not only to review all the definitions critically but to propose a self explanatory definition to minimize the confusion in the minds of dental practitioners and students for better understanding of the concept of CR. Centric relation is clinically significant since it is the only clinically repeatable jaw relation and the logical position to fabricate prosthesis.

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The concept of the sagittal condylar guidance: biological fact or fallacy?

Cited by 32 publications

References 12 publications

A comparative study to correlate between clinically and radiographically determined sagittal condylar guidance in participants with different skeletal relationships

A comparative study to correlate between clinically and radiographically determined sagittal condylar guidance in participants with different skeletal relationships

A comparative study to measure the condylar guidance by the radiographic and clinical methods

Centric Relation Definition: A Historical and Contemporary Prosthodontic Perspective

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