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Comparative analysis of sagittal condylar guidance by protrusive interocclusal records with panoramic and lateral cephalogram radiographs in dentulous population: A clinico-radiographic study

View Article: PubMed Central - PubMed

ABSTRACT

Aim:: To evaluate and compare the correlation between sagittal condylar guidance obtained by protrusive interocclusal records mounted on semi-adjustable articulator with panoramic and Lateral cephalogram radiograph tracings in dentulous population.

Materials and methods:: One-hundred twenty dentulous subjects between age group of 20–40 years, free of signs and symptoms of any temporomandibular diseases were selected. The sagittal condylar guidance was determined by protrusive interocclusal records and transferred to a semi-adjustable articulator through a face bow. The condylar guidance angles obtained were tabulated. The sagittal outline of the articular eminence and glenoid fossa were traced on panoramic and lateral cephalogram radiographs. The sagittal condylar path inclination was constructed. This was related to the Frankfurt's horizontal plane on radiograph to determine the radiographic angle of sagittal condylar guidance. The comparison of protrusive interocclusal records was done with the angles obtained by panoramic and lateral cephalogram radiograph tracings.

Results:: The mean difference between the condylar guidance values obtained using panoramic and lateral cephalogram radiographs was 0.13° and 0.67° on right side and 1.0° and 1.54° on left side with the radiographic values being higher. A Significant positive correlation was observed with P values 0.001 and 0.005 in left and right respectively.

Conclusion:: This study highlighted on the correlation between protrusive interocclusal records and the lateral cephalogram radiograph tracings which were more positively related than the panoramic radiograph. The values of lateral cephalogram radiograph tracings are closer as separate radiographs for left and right side were taken, causing the amount and quality of image distortion less. Lateral cephalogram radiograph may be taken as an important tool to rely on for recording the Sagittal condylar guidance angle.

No MeSH data available.


Comparision of mean values obtained by protrusive interocclusal records with panoramic and lateral cephalogram
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Figure 6: Comparision of mean values obtained by protrusive interocclusal records with panoramic and lateral cephalogram

Mentions: A total of 120 dentulous subjects participated in the study. Tables 1 and 2 summarize left whereas Tables 3 and 4 summarize right mean and standard deviation of condylar guidance values. The angles of the condylar guidance and standard deviations were measured by the protrusive interocclusal record and with panoramic and lateral cephalogram radiographic methods. The correlation between the condylar guidance angles measured by protrusive interocclusal record and panoramic radiographic image were compared with condylar guidance angles measured by protrusive interocclusal record and lateral cephalometric radiographs on both right and left separately [Graph 1].


Comparative analysis of sagittal condylar guidance by protrusive interocclusal records with panoramic and lateral cephalogram radiographs in dentulous population: A clinico-radiographic study
Comparision of mean values obtained by protrusive interocclusal records with panoramic and lateral cephalogram
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4837772&req=5

Figure 6: Comparision of mean values obtained by protrusive interocclusal records with panoramic and lateral cephalogram
Mentions: A total of 120 dentulous subjects participated in the study. Tables 1 and 2 summarize left whereas Tables 3 and 4 summarize right mean and standard deviation of condylar guidance values. The angles of the condylar guidance and standard deviations were measured by the protrusive interocclusal record and with panoramic and lateral cephalogram radiographic methods. The correlation between the condylar guidance angles measured by protrusive interocclusal record and panoramic radiographic image were compared with condylar guidance angles measured by protrusive interocclusal record and lateral cephalometric radiographs on both right and left separately [Graph 1].

View Article: PubMed Central - PubMed

ABSTRACT

Aim:: To evaluate and compare the correlation between sagittal condylar guidance obtained by protrusive interocclusal records mounted on semi-adjustable articulator with panoramic and Lateral cephalogram radiograph tracings in dentulous population.

Materials and methods:: One-hundred twenty dentulous subjects between age group of 20–40 years, free of signs and symptoms of any temporomandibular diseases were selected. The sagittal condylar guidance was determined by protrusive interocclusal records and transferred to a semi-adjustable articulator through a face bow. The condylar guidance angles obtained were tabulated. The sagittal outline of the articular eminence and glenoid fossa were traced on panoramic and lateral cephalogram radiographs. The sagittal condylar path inclination was constructed. This was related to the Frankfurt's horizontal plane on radiograph to determine the radiographic angle of sagittal condylar guidance. The comparison of protrusive interocclusal records was done with the angles obtained by panoramic and lateral cephalogram radiograph tracings.

Results:: The mean difference between the condylar guidance values obtained using panoramic and lateral cephalogram radiographs was 0.13° and 0.67° on right side and 1.0° and 1.54° on left side with the radiographic values being higher. A Significant positive correlation was observed with P values 0.001 and 0.005 in left and right respectively.

Conclusion:: This study highlighted on the correlation between protrusive interocclusal records and the lateral cephalogram radiograph tracings which were more positively related than the panoramic radiograph. The values of lateral cephalogram radiograph tracings are closer as separate radiographs for left and right side were taken, causing the amount and quality of image distortion less. Lateral cephalogram radiograph may be taken as an important tool to rely on for recording the Sagittal condylar guidance angle.

No MeSH data available.