Assessment of antero-posterior skeletal relationships in adult Korean patients in the natural head position and centric relation / 대한치과교정학회지
Korean Journal of Orthodontics
;
: 421-431, 2010.
Article
in English
| WPRIM
| ID: wpr-645281
ABSTRACT
OBJECTIVE:
This study aimed to verify the intra-individual reproducibility of the natural head position (NHP) in adult Korean patients in the centric relation (CR) position and to prove the inter-individual variability of the Frankfurt horizontal (FH) plane and sella-nasion (SN) line compared to the true horizontal line (THL). In addition, the study aimed to investigate the correlations between linear measurements from A-point and B-point to the nasion true vertical line (NTVL) and angular measurements from A-point and B-point to the SN line.METHODS:
Two lateral cephalograms were taken of 116 subjects (23 males, 93 females) with CR wax bites in a NHP at a one-week interval.RESULTS:
Method errors of three variables and intraclass correlation coefficients of six parameters proved the intra-individual reproducibility of NHP (p 0.05), but it was clinically variable (SD 3.89degrees) on the inter-individual level. Conversely, the angle of the SN line to the THL was significantly different from 7degrees (p < 0.05). Very low correlation was found between the linear measurements and angular measurements of A-point and B-point (p < 0.01).CONCLUSIONS:
The NTVL could be a useful reference line for assessing the antero-posterior position of the maxilla and mandibleof Korean adult patients in NHP and CR.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Bites and Stings
/
Centric Relation
/
Head
/
Maxilla
Limits:
Adult
/
Humans
/
Male
Language:
English
Journal:
Korean Journal of Orthodontics
Year:
2010
Type:
Article
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