Prevalence Of Mouth Breathing Research Articles

Anomaly detection in sleep: detecting mouth breathing in children

Identifying mouth breathing during sleep in a reliable, non-invasive way is challenging and currently not included in sleep studies. However, it has a high clinical relevance in pediatrics, as it can negatively impact the physical and mental health of children. Since mouth breathing is an anomalous condition in the general population with only 2% prevalence in our data set, we are facing an anomaly detection problem. This type of human medical data is commonly approached with deep learning methods. However, applying multiple supervised and unsupervised machine learning methods to this anomaly detection problem showed that classic machine learning methods should also be taken into account. This paper compared deep learning and classic machine learning methods on respiratory data during sleep using a leave-one-out cross validation. This way we observed the uncertainty of the models and their performance across participants with varying signal quality and prevalence of mouth breathing. The main contribution is identifying the model with the highest clinical relevance to facilitate the diagnosis of chronic mouth breathing, which may allow more affected children to receive appropriate treatment.

Mouth breathing induces condylar remodelling and chondrocyte apoptosis via both the extrinsic and mitochondrial pathways in male adolescent rats

The prevalence of mouth breathing is high in children and adolescents. It causes various changes to the respiratory tract and, consequently, craniofacial growth deformities. However, the underlying mechanisms contributing to these effects are obscure. Herein, we aimed to study the effects of mouth breathing on chondrocyte proliferation and death in the condylar cartilage and morphological changes in the mandible and condyle. Additionally, we aimed to elucidate the mechanisms underlying chondrocyte apoptosis and investigate any variations in the related pathways. Subchondral bone resorption and decreased condylar cartilage thickness were observed in mouth-breathing rats; further, mRNA expression levels of Collagen II, Aggrecan, and Sox 9 were lower in the mouth breathing group, while those of matrix metalloproteinase 9 increased. TdT-mediated dUTP nick end labelling staining and immunohistochemistry analyses showed that apoptosis occurred in the proliferative and hypertrophic layers of cartilage in the mouth breathing group. TNF, BAX, cytochrome c, and cleaved-caspase-3 were highly expressed in the condylar cartilage of the mouth-breathing rats. These results suggest that mouth breathing leads to subchondral bone resorption, cartilage layer thinning, and cartilage matrix destruction, inducing chondrocyte apoptosis via both the extrinsic and mitochondrial apoptosis pathways.

Prevalence of mouth breathing, with or without nasal obstruction, in children with moderate to severe obstructive sleep apnea

BackgroundMouth breathing (MB) is a symptom of obstructive sleep apnea (OSA) in children, but its diagnosis remains challenging. The main objectives of our study were to evaluate whether parents' and physician's diagnose of MB were concordant and to evaluate the prevalence of nasal obstruction in children with OSA and MB. MethodsNinety-three children (median age: 10.6 years, range 3–18) with moderate to severe OSA prospectively underwent otorhinolaryngologist (endoscopy, acoustic rhinometry and pharyngometry allowing calculation of pharyngeal compliance) and orthodontist (clinical exam and cephalometry) assessments together with parental interview (daytime MB: never, sometimes, often, always). MB was also assessed by the otorhinolaryngologist (nasal obstruction on endoscopy) and the orthodontist (incompetent lips or anterior open bite or low tongue position). ResultsThirty-eight children (41%) were mouth (parental criterion: MB often or always, median age 8.2 years) and 55 nasal (11.4 years, p = 0.016) breathers. The agreement of parental and physician diagnosis of MB was slight (orthodontist) to moderate (otorhinolaryngologist). Parental diagnosis of MB was associated with nasal obstruction on acoustic rhinometry and endoscopy (hypertrophy of inferior turbinate, n = 18 or adenoids, n = 15) and with an adenoid facies (increased Frankfort's mandibular plane angle on cephalometry). Eleven children had MB by habit and were characterized by more severe OSA and higher pharyngeal compliance than mouth breathers with nasal obstruction. ConclusionMB diagnosis by parents is acceptable and is mainly related to nasal obstruction. A subset of children had MB by habit associated with worst OSA and increased pharyngeal compliance that could benefit from myofunctional therapy.

Mouth Breathing, Head Posture, and Prevalence of Adenoid Facies in Patients with Upper Respiratory Tract Obstruction

Frequent upper respiratory tract infections and allergic reactions may cause upper respiratory tract obstruction (OURT). Mouth breathing (MB) occurs in individuals with nasal breathing problems. A person with MB will raise his head higher; thus, MB is a risk factor for head posture ( HP) deviation. Children with MB during growth and development may exhibit dentocraniofacial (DCF) deviation. Objective: To evaluate the prevalence of MB, HP, and DCF deviation in OURT patients to know risk factors of HP deviation, morphological aberrations of DCF and DCF deviation growth and development. Methods: This cross-sectional study included 285 OURT subjects aged 9–15 years. Data obtained from cephalometric analysis, physical examination, and questionnaires were analyzed. Results: Of 285 OURT subjects, 80.4% showed MB, 44.2% HP deviation, and 66.7% DCF deviation. As risk factors for DCF deviation, MB and HP showed odds ratios of 20.45 and 8.11 and population attributable risks of 87.5% and 59.7%, respectively. Conclusion: The prevalence of MB and DCF deviation in OURT patients is high, but that of HP deviation is generally comparable. MB and deviated HP are risk factors for DCF deviation growth and development.

Impact of breathing patterns on the quality of life of 9- to 10-year-old schoolchildren.

Mouth breathing can cause a set of changes in craniofacial growth and development, with esthetic, functional, and psychological repercussions. To determine the impact of mouth breathing on the quality of life of schoolchildren. A school-based, cross-sectional study was conducted with 1911 children ages 9 and 10 years in the city of Recife, Brazil. The children answered the Mouth Breather Quality of Life questionnaire and a questionnaire that addressed sociodemographic data and health-related aspects. Clinical examinations were performed by an examiner who had undergone a training and calibration process for the diagnosis of mouth breathing (kappa = 0.90). Descriptive statistics were conducted to characterize the sample. Statistical analysis involved the Student's t-test and the F test (analysis of variance) (alpha = 5%). The prevalence of mouth breathing was 54.81%. Children with oral breathing demonstrated a poorer quality of life in comparison with children with nasal breathing (p < 0.001). The following variables were significantly associated with a poorer quality of life among the children with mouth breathing: a younger age (p < 0.001) and the use of medication (p = 0.002). Based on the present findings, children with the mouth-breathing pattern experience a greater negative impact on quality of life in comparison with those with the nose-breathing pattern. Thus, the early diagnosis and treatment of this clinical condition are fundamental to minimizing the consequences of mouth breathing on the quality of life of schoolchildren with respiration disorders.

The Mouth Breathing Syndrome: prevalence, causes, consequences and treatments. A Literature Review

The Mouth Breathing Syndrome (MBS) is characterized by pattern of mouth breathing (MB) or mixed breathing chronic caused by nasal obstruction or inflammatory factors, which may be present in half of the school children. The permanence of the framework affects the individual globally, and especially their stomatognathic functions, posture and quality of life, requiring multidisciplinary care. This paper aims to provide an overview of recent scientific production on the prevalence, etiologies, sequelae and treatments in MBS. The method used was a literature review through a research in the databases of LILACS, Medline and SciELO, obeying defined inclusion criteria. The 45 articles chosen were distributed and analyzed in groups: prevalence (1), causes (9), consequences (28) and treatments (7). This review highlighted the lack of studies on the prevalence of MB, specially in adults, besides the preponderance of studies on the consequences rather than on the analysis of its causes and treatments. It also showed the need to sensitize health professionals to the recognition of MBS, as long as a global and early intervention with these patients.

Upper Airway Obstruction in Children: Prevalence, Diagnosis, Repercussions, and Comorbidities

Objectives: Investigate the prevalence, diagnosis, and repercussions of upper airway obstruction in children under 5 years-old and their impact in public health. Methods: A cross-sectional study was conducted with 197 children under 5, randomly selected from a population of 1500, from November 2011 to December 2012. Parents answered to anamnesis about respiratory problems, upper airway infections, perinatal history, and feeding habits. They answered validated questionnaires about sleep disordered breathing and allergies. All subjects underwent a physical examination, and those who complained of respiratory problems also had nasal fiberendoscopy. Results: 197 subjects (2.33 ± 1.09 y.o.), 107 boys. Prevalence of mouth breathing was 19.2%, nasal obstruction 18.2%, snoring 22.8%, rhinorrhea and sneezing 36.5%, and sleep disordered breathing (SDB) 7.1%. Diagnosis: adenoid enlargement (A) 8.6%, tonsil enlargement (T) 0.5%, tonsil and adenoid enlargement (T&amp;A) 10.7%, rhinitis 21.9%, allergic rhinitis 7.6% (totalizing 49.6%). Fifty-five point seven percent of children were exclusively breast fed for at least 6 months, and no correlation was found with nasal obstruction. Sleep disordered breathing symptoms were found in 7.1 % and were associated only with T&amp;A (64.2%). Children with upper airway obstruction were prone to upper airway infections and visits to the emergency room. Conclusions: Upper airway obstruction is prevalent in about 20% of children. Breast feeding was not correlated to mouth breathing. Rhinitis is a common diagnosis. T&amp;A is associated with SDB and infections, consuming high resources. Doctors must investigate and refer young children with upper airway problems to treatment in order to minimize large consumption of health resources.

Association between breastfeeding and the development of breathing patterns in children

The aims of the present study were to evaluate the association between breastfeeding and breathing development and to investigate associations between breastfeeding duration and the breathing patterns in children. A cross-sectional study was carried out at the Institute of Integrative Medicine Professor Fernando Figueira, Recife, Brazil, with a random sample of 732 children aged between 6 and 9 years. Breastfeeding and breathing patterns were identified using a questionnaire that was filled out by mothers or guardians, and a clinical examination of the children. Data were analyzed statistically by Pearson's chi-square test at 5 % significance level. The prevalence of mouth breathing was 48 %, whereas 52 % of the children were nasal breathers. Six hundred-forty children were breastfed; 46.2 % of them were mouth breathers and 53.8 % were nasal breathers. Ninety-two children were not breastfed; 59.8 % of them were mouth breathers and 40.2 % were nasal breathers. Breastfeeding for 24 months or more, as well as exclusive breastfeeding in the first 6 months, was associated with the development of nasal breathing. Extended breastfeeding was associated with correct development of the breathing pattern.

The effect of Snoring on Voice: A Controlled study of 30 Subjects

We conducted a study to determine the prevalence of vocal symptoms in snorers. A total of 30 patients with a history of snoring were investigated for the presence or absence of three vocal symptoms immediately after they awoke from sleep: hoarseness, voice weakness, and other changes in voice quality. All patients were also asked to complete a voice-related quality-of-life (V-RQOL) questionnaire. Findings were compared with those of an age- and sex-matched control group of 30 nonsnorers. The most common vocal symptom in the snoring group was hoarseness, which occurred in 11 patients (36.7%); voice weakness and other voice quality changes were present in 8 snorers each (26.7%). In the control group, the most common vocal symptom was voice weakness, which was present in 7 subjects (23.3%); 5 controls (16.7%) experienced other changes in voice quality, and 3 controls (10.0%) experienced hoarseness. The difference between the prevalence of hoarseness in the two groups was statistically significant (p = 0.030), and the differences in voice weakness and other voice quality changes were not. The mean V-RQOL score was 87.50 ± 26.89 in the snoring group and 96.00 ± 5.82 in the control group-again, not a statistically significant difference. Finally, we found no association between any of the three vocal symptoms and the prevalence of mouth breathing, the level of snoring loudness, and the mean number of snores per minute. We conclude that snorers are more likely to experience hoarseness than are nonsnorers.

Prevalência de respiradores bucais em crianças de idade escolar

The objective of this article is to identify the prevalence of mouth breathing in children from an elementary school. 496 questionnaires were answered by 1st and 4th grade children's parents or sponsors in order to identify mouth-breathing. There were questions about habits, sleeping, behavior, eating, personal care and breathing. Mann-Whitney and the Chi-square tests were used to compare the variables between mouth-breathing and nose-breathing among the groups. To measure the exposure effect of the explanatory variables on mouth breathing, the test of logistic regression was used and its magnitude was calculated through Odds Ratio. The statistical significance was set at 5%, and the rate of returned questionnaires was 84.5%. The prevalence of the mouthbreathing over this population was 56.8%. The average age was 7 years old (6-9). There was no significant statistical difference between genders, considering 49.1% male and 50.9% female. The final model of logistic regression identified the variables dribble, sleeps well (negative association) and snores as factors that predict the occurrence of the mouth-breathing. The prevalence of mouthbreathing was similar to related in the literature. The variables dribble, sleeps well (negative association) and snores may be factors that predict the occurrence of mouth-breathing.

Tooth wear in the mixed dentition: a comparative study between children born in the 1950s and the 1990s.

The aim of this study was to evaluate the degree of tooth wear in posterior deciduous teeth of 100 subjects in the second phase of mixed dentition who were born in the 1950s (50sG) and 100 subjects born in the 1990s (90sG). The degree of abrasion for each posterior deciduous tooth was scored ranging from 0 to 3. The comparison of the degree of abrasion showed significant differences between the two groups for all examined teeth (upper and lower deciduous canines and first and second primary molars) all of which appeared to be more abraded in the 50sG. The findings of the present study indicate that subjects who were born in the 1950s exhibited a significantly greater degree of tooth wear on the posterior deciduous teeth when compared with contemporary subjects, along with a well-recognized lower prevalence of malocclusions. Changes in dietary habits and a diet based on processed foods may be postulated as factors involved with a decrease of dental attrition in contemporary populations. An increase in the prevalence of mouth breathing (tested in the present study) appears to be associated with a decrease in tooth wear in the contemporary population as well.

Prevalence of mouth breathing among children

To determine the prevalence of mouth breathing among children aged 3 to 9 years living in the urban districts of the town of Abaeté, MG, Brazil. This study assesses a representative, randomized sample of the town's population (23,596 inhabitants). Children were selected by lots according to a random number table until 370 had been enrolled; this number had been determined by statistical calculation. A protocol for anamnesis and clinical assessment of the patients was specially developed for this project, since no preexisting instruments could be found in the literature that had been validated and were appropriate for the purpose. Data were analyzed using SPSS version 10.5. The prevalence of mouth breathing was found to be 55%, or 204 children. Further studies are needed to validate a questionnaire for the clinical diagnosis of mouth breathers at the primary care level.