Comparison of craniofacial morphology, head posture and hyoid bone position with different breathing patterns
SDJ-Saudi Dental Journal [The]. 2012; 24 (3-4): 135-141
in English
| IMEMR
| ID: emr-161051
ABSTRACT
The aim of this study was to evaluate differences in craniofacial morphology, head posture and hyoid bone position between mouth breathing [MB] and nasal breathing [NB] patients. Mouth breathing patients comprised 34 skeletal Class I subjects with a mean age of 12.8 +/- 1.5 years [range 12.0-15.2 years]. Thirty-two subjects with skeletal Class I relationship were included in the NB group [mean 13.5 +/- 1.3 years; range 12.2-14.8 years]. Twenty-seven measurements [15 angular and 12 linear] were used for the craniofacial analysis. Additionally, 12 measurements were evaluated for head posture [eight measurements] and hyoid bone position [four measurements]. Student's /-test was used for the statistical analysis. Probability values <0.05 were accepted as significant. Statistical comparisons showed that sagittal measurements including SNA [p < 0.01], ANB [p < 0.01], A to N perp [p < 0.05], convexity [p < 0.05], IMPA [p < 0.05] and overbite [p < 0.05] measurements were found to be lower in MB patients compared to NB. Vertical measurements including SN-MP [p < 0.01] and PP-GoGn [p < 0.01], S-N [p <0.05] and anterior facial height [p < 0.05] were significantly higher in MB patients, while the odontoid proses and palatal plane angle [OPT-PP] was greater and true vertical line and palatal plane angle [Vert-PP] was smaller in MB patients compared to NB group [p < 0.05 for both]. No statistically significant differences were found regarding the hyoid bone position between both groups. The maxilla was more retrognathic in MB patients. Additionally, the palatal plane had a posterior rotation in MB patients. However, no significant differences were found in the hyoid bone position between MB and NB patients
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Index:
IMEMR (Eastern Mediterranean)
Language:
English
Journal:
Saudi Dent. J.
Year:
2012
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