Esfandiar Akhavan Niaki; Roshanak Montazeri Hedeshi
Abstract
OBJECTIVE: as regards to prevalence of mouth breathing and its complications, The panoramic view of children with mouth breathing as a routine initial accessible radiographic examination, was assessed in the present study; considering Confounding factors such as the magnification, dimensional changes, ...
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OBJECTIVE: as regards to prevalence of mouth breathing and its complications, The panoramic view of children with mouth breathing as a routine initial accessible radiographic examination, was assessed in the present study; considering Confounding factors such as the magnification, dimensional changes, type of the x-ray machine and head position during imaging. We tried to innovate new standardization of nasal cavity analysis in panoramic radiography, in addition to creating specified and reliable new parameters, and investigate if there are significant differences between these parameters in mouth breathing patients than in those with nasal breathing. METHODS: This wasa control and analytical study which assessed 30 patients with Mouth breathing and 30 patients with nasal breathing, in the range of 9-12 years old with equal numbers of both sexes, in both groups. After tracing panoramic radiographs, five angular and proportional variables was created and measured, T-test was performed and the level of significance was evaluated. For investigation of nasal septum deviation, we used Chi-square test.RESULT: "NL" and "NL/B" parameters and unclear irregular view ofnasal cavity ininternal structures, showed significant differences in mouth breathing group (P.Value < 0.5). Right and left nasal cavity width in each patient, separately in two groups- mouth breathing and normal breathing- showed no significant differences. CONCLUSION: Due to availability and benefits of panoramic radiography,the proportional and angular parameters used, were reliable for assessment of nasal cavity in mouth breathing children and could be developed in future studies for diagnosis of mouth breathing children.
Mohamad Hosein Toodeh Zaeim; Soghra Yassaei; Hosein Aghili; Somaie Tefakh
Abstract
Aim: Nasopharyngeal space is estimated from a point on the posterior part of the soft palate till the nearest point on the wall of the pharynx and the aim of the present study was to study the nasopharyngeal indices in nasal breathers with class I and III malocclusions.Materials and Methods: This was ...
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Aim: Nasopharyngeal space is estimated from a point on the posterior part of the soft palate till the nearest point on the wall of the pharynx and the aim of the present study was to study the nasopharyngeal indices in nasal breathers with class I and III malocclusions.Materials and Methods: This was a descriptive analytical study done by the case - control method on 35 lateral cephalometries of patients with skeletal Class III malocclusion as the study group and 30 lateral cephalometries of patients with skeletal Class I malocclusion as the control group. The population under study included patients referring to the orthodontic clinic and their age range was between 10 and 20 years. The lateral cephalometric radiographies were traced and data was analyzed using coefficient relation and t test.Results: The bony height of the nasopharyngeal space had a statistically significant positive relationship with the anterior facial height. The bony area of nasopharyngeal space had a significant positive relationship with the anterior and lower facial height. There was no significant difference between the bony dimensions of the nasopharyngeal space and nasopharyngeal and oropharyngeal airway of the two groups.Conclusion: There was no significant difference between nasopharyngeal area parameters in skeletal Class I and Ill malocclusion. In nasal breather with skeletal Class III malocclusion, dimensions of nasopharyngeal area have no significant effect on facial growth pattern.
