Influence Of Nasal Obstruction Research Articles

Influence of nasal obstruction in face dimensions according to different growth phases

Objectives: The objectives of this study are investigating the facial and occlusal abnormalities in different phases of growth and correlate them to nasal obstruction in patients that need orthodontic treatment. Methods: We selected 86 patients from 6 to 25 years old (37 male; 49 female) that needed orthodontic treatment. They were divided according to the skeletal phase of maturity (hand and wrist x-ray) into 3 phases of growth (prepuberal, puberal and postpuberal). Patients were submitted to ENT doctor’s exam to determine if nasal obstruction was present. Patients were submitted to the orthodontist’s examination that evaluated also the orthodontic casts, lateral and frontal cephalometric x-rays. Facial and dental findings of patients with and without nasal obstruction were compared by statistical analysis. Results: This series showed that nasal obstruction was present in around half of the patients. It was associated to: higher frequency of dolychofacial pattern, class II skeletal pattern, palatal atresia, skeletal openbite, smaller nasal wideness, distance intermolars decreased, smaller maxillary and mandibular dimensions, and increased overjet. The majority of these characteristics were more prevalent in puberal and postpuberal phases of growth and in patients with a dolychofacial pattern. Conclusion: These findings suggest that the longer the nasal obstruction, the worse the orthodontic abnormalities, mainly in dolychofacial patients and that the multidisciplinary approach may be very important to a successful treatment.

Influence of nasal obstruction on sleep-associated breathing disorders

The influence of nasal obstruction on sleep associated breathing disorders (SABD) and the controversial effects of surgical treatment are discussed. Complete nasal obstruction caused by nasal packing increases SABD, but varies from patient to patient and depends on age and individual anatomy. Especially patients with preexisting obstructive sleep apnea syndrome (OSAS) can develop severe complications. Some authors found a higher frequency of SABD in patients with nasal obstruction due to anatomical alterations, i.e. septal deviation, while others denied this connection. Major causes for the development of SABD in nasal obstruction include certain reflex mechanisms, increased negative inspiration pressure with a tendency for pharyngeal collapse, and transition to transoral breathing. Intermittent dilatation of the nasal valve using stents or tapes will lead to a decrease of nasal airway resistance and might also result in an improvement of SABD according to some studies, while others did not find any improvement. The results of controversial operative treatment in nasal airway obstruction are also described and include complete healing of high degree OSAS, improvement of sleep quality, and elimination of snoring. On the other hand, surgery might also be completely unsuccessful or even induce OSAS. As the effect of any kind of nasal operation on SABD is unpredictable from our present knowledge, the decision whether or not nasal surgery is indicated should depend on the individual situation of the patient. If OSAS is suspected, preoperative and post-operative polysomnography should be performed.

Influence of nasal obstruction on auto-CPAP behaviour during sleep in sleep apnoea/hypopnoea syndrome

BACKGROUNDAuto-CPAP machines have been developed to adapt automatically the positive pressure level to the required needs. The auto-CPAP response to transient nasal obstruction was tested during sleep in patients with...

Influence of Nasal Obstruction on Obstructive Sleep Apnea

Nasal obstruction, either partial or complete, may cause snoring and/or obstructive sleep apnea (OSA). However, there is no clear answer to the question, in how many cases nasal airway is a main or combined site of obstruction. Fifty-four OSA cases (47 men and 7 women) were examined by measuring the upper airway pressure gradient while they were asleep, using a multi-sensor pressure transducer. Their average apnea+hypopnea index was 35.6 /h and body mass index was 26.5 kg/m 2 . Our hypothesis was that elevation of the inspiratory negative airway pressure at the epipharynx could indicate the influence of nasal obstruction. Seven cases out of 54 proved to have inspiratory negative pressure more than m 3 cm H 2 O at the epipharynx during sleep. Four cases indicated elevated negative pressure in the lateral position, and 3 cases out of 19 CPAP candidates showed the same elevation in the supine position. In all 7 cases, the main obstructive site was either at the soft palate or the base of the tongue. Although nasal airway is the preferred route of respiration during sleep, nasal obstruction itself cannot be a main factor causing OSA, but a co-factor of OSA during sleep.

The Study on the Influence of Nasal obstruction on Human masticatory behavior

The Study on the Influence of Nasal obstruction on Human masticatory behavior

The Influence of Nasal Obstruction and Chronic Mouth Breathing on Dentofacial Aesthetics

The Influence of Nasal Obstruction and Chronic Mouth Breathing on Dentofacial Aesthetics

Influence of Nasal Obstruction on Smell Function

This article has reviewed studies that document a relationship between loss of smell function and disturbances in nasal airflow function. In some cases (for example, hypertrophied adenoids and nasal sinus disease), medical or surgical intervention appears to be useful in restoring some, if not all, of the smell loss associated with the disorder. In other cases (for example, septoplasty), empirical evidence of such efficacy is wanting. Given the current research interest on these topics, however, a clear understanding of both the positive and negative influences of surgical and medical interventions in most cases of obstructive nasal disease or malformities will be forthcoming.

The Influence of Nasal Obstruction on Abnormalities of the Jaws

The Influence of Nasal Obstruction on Abnormalities of the Jaws

The Influence of Nasal Obstruction upon the Development of Teeth and Palate

The Influence of Nasal Obstruction upon the Development of Teeth and Palate