Malocclusion Research Articles

Multidisciplinary Approach to Smile Design of a Patient With Osteogenesis Imperfecta With Clear Aligners and Prosthetic Restorations.

Osteogenesis imperfecta (OI) is an autosomal dominant disease that affects the teeth and the musculoskeletal system. Orthodontic treatment in OI patients may be risky due to the fragility of dental hard tissues. Clear aligners may be considered a suitable orthodontic treatment method for these patients. A 30-year-old female OI patient with Angle Class I malocclusion, open bite, and crowding underwent prosthetic treatment after 15 months of clear aligner orthodontic treatment. Aesthetic rehabilitation was achieved with clear aligner treatment and prosthetic restorations. It is possible to obtain more aesthetic results with orthodontic treatments before prosthetic restorations in the oral rehabilitation of patients with skeletal and dental malocclusions. In orthodontic treatments in adult patients with systemic diseases, the use of clear aligners both minimizes the risk and provides a more comfortable process.

Malocclusion prevalence in 11-13 years old student in the Madrasah Tsanawiyah Melirang, Gresik

Background: When teeth are not positioned correctly, it is referred to as malocclusion, and it frequently happens in the general population. One of the traits of malocclusion that is frequently observed in children beginning in the early mixed dentition phase is crowded teeth. This disorder will become more serious and cause speech, masticatory, and cosmetic issues if therapy is not started right away. Environmental and genetic factors have a significant impact on malocclusion. Therefore, a child's nutrition, bad habits, trauma to the main teeth, and the pattern acquired from both parents will all affect the malocclusion's characteristics. Purpose: Enhance instruction in identifying malocclusion and the stages of permanent and changing tooth growth. Methods: Forty-six students from Madrasah Tsanawiyah's classes 7A and 7B participated. Intraoral examinations and the completion of pretest and posttest questionnaires were used to collect data. Next, Stastical Package Social Science (SPSS) version 23 was used to analyze the frequency distribution data. Results: Male students had more crowded teeth (20) and less crowded teeth (2) than female students (18) and less crowded teeth (6). Class I malocclusion (41), class II malocclusion (3), and class III malocclusion (2) are the highest. Conclusion: Malocclusion class I is characterized by the greatest number of crowded teeth in males aged 8 to 10 years.

Comparison of jaw arch size in stunting patients at Asemrowo Public Health Center

Background: The etiology of malocclusion is multifactorial; it can occur due to intrinsic, extrinsic factors, or a combination of both. Malnutrition, which is one of the extrinsic factors of malocclusion, is a frequent case in Indonesia. An example of a malnutrition case that commonly occurs in Indonesia is stunting in children’s growth and development, which can trigger malocclusions such as crowded teeth and bone crowding. Purpose: To identify the size of the dental arches in stunting sufferers at the Asemrowo public health center. Methods: In the study model of stunting patients, the length and width of the jaw arch were measured. The results of the measurements are then analyzed and compared with the data from the measurements of healthy children to see whether there are significant differences. Results: In terms of maxillary arch length, the 7-year-old age group yields p = 0.179. In terms of maxillary arch width, the 7-year age group yields p = 0.282. In terms of mandibular arch length, the 7-year-old age group yields p = 0.398. In terms of maxillary arch width, the 7-year age group yields p = 0.398. In terms of maxillary arch length, the 8-year age group yields p = 0.438. In terms of maxillary arch width, the 8-year-old age group yields p = 0.082. In terms of mandibular arch length, the 8-year-old age group yields p = 0.302. In terms of mandibular arch width, the 8-year-old age group yields p = 0.190. Conclusion: There is no significant difference between the length and width of the jaw arch in all age groups (p > 0.05).

Prevalence of dental caries, oral health status, malocclusion status, and dental treatment needs in thalassemic children: A cross-sectional study

ABSTRACT Background: Thalassemia is a hemoglobinopathy-associated genetic disease resulting due to defective synthesis of globin chains, causing defects in the skeletal and oral structures. Aim: This cross-sectional study was designed to analyze the prevalence of dental caries, oral health status, malocclusion status, and dental treatment needs in thalassemic children. Materials and Methods: Institutional Ethical committee clearance was obtained before starting the study. The study sample comprised 100 thalassemic and 100 normal children in which oral disease markers like dmft/DMFT index, plaque index, gingival index, and Angle’s classification for malocclusion were used. The statistical tool used was ‘one-way ANOVA’ with the probability set at 0.05. Results and Observations: Statistically significant differences in prevalence of dental caries, periodontal disease, malocclusion, and treatment needs were noted in thalassemic individuals when compared to normal subjects. Conclusion: The present study has given an insight into the various oral and dentomaxillofacial manifestations of thalassemia, thus considering the importance of routine oral examination for the prevention of dental caries and periodontal diseases.

Assessment of parental attitude, knowledge and awareness towards preventive dentistry in south zone of Chhatrapati Sambhajinagar: A questionnaire based cross sectional survey

Introduction: Oral health is a pivotal aspect of overall well-being. In early childhood, primary teeth play a vital role in development of speech, chewing, maintaining proper spacing, and guiding the eruption of permanent teeth. Common oral conditions comprise dental caries, malocclusion, childhood caries, and trauma. Aim: The present study was conducted to assess paternal knowledge towards the forestallment of oral conditions and application of preventive dental procedures in children in South zone of Chhatrapati Sambhajinagar. Materials and Methods: A cross-sectional questionnaire was administered to parents of pediatric patients of age group 3 to12 years in South zone of Chhatrapati Sambhajinagar, Maharashtra, with a sample size of 270 participants. A structured questionnaire, comprising 14 questions in English, was developed, translated and back translated into the local language Marathi by experts to ensure better comprehension by the parents. The questionnaire was divided into two sections: the first focused on demographic information, while the second included 14 multiple-choice, close-ended questions. These questions included topics such as preventive treatments for dental caries, childhood caries, topical fluoride application, fluoridated toothpaste, pit and fissure sealants, habit-breaking dental appliances, malocclusion, mouth guards, and space maintainers. Additionally, the survey addressed harmful habits such as thumb-sucking, tongue-thrusting, and nail-biting. Result: 56.6% of parents sought dental care only after experiencing pain. Additionally, parents of paediatric patients have restricted knowledge about preventive dentistry. Conclusion: Parental knowledge about preventive dental procedures is limited, as is the utilization of these measures.

DA-Net: A classification-guided network for dental anomaly detection from dental and maxillofacial images

Dental abnormalities (DA) are frequent signs of disorders of the mouth that cause discomfort, infection, and loss of teeth. Early and reasonably priced treatment may be possible if defective teeth in the oral cavity are automatically detected. Several research works have endeavored to create a potent deep learning model capable of identifying DA from pictures. However, because of the following problems, aberrant teeth from the oral cavity are difficult to detect: 1) Normal teeth and crowded dentition frequently overlap; 2) The lesion area on the tooth surface is tiny. This paper proposes a professional dental anomaly detection network (DA-Net) to address such issues. First, a multi-scale dense connection module (MSDC) is designed to distinguish crowded teeth from normal teeth by learning multi-scale spatial information of dentition. Then, a pixel differential convolution (PDC) module is designed to perform pathological tooth recognition by extracting small lesion features. Finally, a multi-stage convolutional attention module (MSCA) is developed to integrate spatial information and channel information to obtain abnormal teeth in small areas. Experiments on benchmarks show that DA-Net performs well in dental anomaly detection and can further assist doctors in making treatment plans. Specifically, the DA-Net method performs best on multiple detection evaluation metrics: IoU, PRE, REC, and mAP. In terms of REC and mAP indicators, the proposed DA-Net method is 1.1% and 1.3% higher than the second-ranked YOLOv7 method.

Changes in heavy metal levels in the oral fluid of young patients with and without plaque-induced gingivitis undergoing treatment with braces

Relevance. Research into the effects of nickel-titanium alloys and heavy metal ions on the development of inflammatory oral diseases is becoming increasingly significant in orthodontics. The relationship between toxic elements and inflammatory responses remains under-researched and controversial. Data on the connection between heavy metals and inflammatory reactions could influence the choice of orthodontic appliance materials and guide the subsequent management and monitoring of patients with braces. The question of the safe use of nickel-titanium alloy braces continues to be a relevant concern.Purpose. To assess the levels of heavy metals in the oral fluid of young patients with braces, both in those who developed plaque-induced gingivitis and those who did not.Materials and Methods. The study involved 50 clinically healthy patients (Groups I and II health categories) with intact teeth, including patients with compensated dental caries (isolated carious lesions – Grade I) and no periodontal diseases (PMA index <20), presenting with dental crowding and malocclusion (K07.2, K07.3). The average age of the patients was 22.1 ± 2.7 years, all of whom were undergoing treatment with metal braces. Oral fluid samples were analyzed for 12 heavy metal elements using inductively coupled plasma mass spectrometry (ICP-MS) in a laboratory setting. Additionally, lysozyme activity and oral fluid pH were measured before appliance placement and six months into orthodontic treatment.Results. Adaptation to braces in young patients is frequently complicated by the development of gingivitis and periodontitis due to impaired oral hygiene and the mechanical pressure exerted on teeth and gums, leading to elemental imbalances. Patients with gingivitis during orthodontic treatment are particularly at risk of developing such imbalances and therefore require timely correction of their mineral metabolism.

Prediction of a Cephalometric Parameter and Skeletal Patterns from Lateral Profile Photographs: A Retrospective Comparative Analysis of Regression Convolutional Neural Networks.

Background/Objectives: Cephalometric analysis has a pivotal role in the quantification of the craniofacial skeletal complex, facilitating the diagnosis and management of dental malocclusions and underlying skeletal discrepancies. This study aimed to develop a deep learning system that predicts a cephalometric skeletal parameter directly from lateral profile photographs, potentially serving as a preliminary resource to motivate patients towards orthodontic treatment. Methods: ANB angle values and corresponding lateral profile photographs were obtained from the medical records of 1600 subjects (1039 female and 561 male, age range 3 years 8 months to 69 years 1 month). The lateral profile photographs were randomly divided into a training dataset (1250 images) and a test dataset (350 images). Seven regression convolutional neural network (CNN) models were trained on the lateral profile photographs and measured ANB angles. The performance of the models was assessed using the coefficient of determination (R2) and mean absolute error (MAE). Results: The R2 values of the seven CNN models ranged from 0.69 to 0.73, and the MAE values ranged from 1.46 to 1.53. Among the seven models, InceptionResNetV2 showed the highest success rate for predictions of ANB angle within 1° of range and the highest performance in skeletal class prediction, with macro-averaged accuracy, precision, recall, and F1 scores of 73.1%, 78.5%, 71.1%, and 73.0%, respectively. Conclusions: The proposed deep CNN models demonstrated the ability to predict a cephalometric skeletal parameter directly from lateral profile photographs, with 71% of predictions being within 2° of accuracy. This level of accuracy suggests potential clinical utility, particularly as a non-invasive preliminary screening tool. The system's ability to provide reasonably accurate predictions without radiation exposure could be especially beneficial for initial patient assessments and may enhance efficiency in orthodontic workflows.

Clinical presentation, management and outcome of maxillofacial fractures in pet rabbits: 27 cases (2008-2022).

To report clinical findings, management strategies and outcomes in pet rabbits with maxillofacial fractures. Medical records of pet rabbits with confirmed maxillofacial fractures from three exotic animal veterinary services between 2008 and 2022 were reviewed. Forty-five fractured maxillofacial bones were reported in 27 rabbits, including mandibular symphyseal separation in 13 rabbits. Median age was 18 months (interquartile range, 7 to 38 months), and median bodyweight was 1.70 kg (interquartile range, 1.36 to 2.33 kg). The most common aetiology was anthropogenic accidents (16/27). Hyporexia/anorexia was the most frequent presenting complaint (17/27). Common clinical findings included dental malocclusion (12/27), craniofacial pain (9/27), crepitus (9/27) and swelling (7/27). Three (3/27) rabbits were euthanised after diagnosis. Mandibular symphyseal separation in 11 of 12 treated rabbits were addressed using circummandibular cerclage wiring. All remaining fractures were conservatively managed. Twenty-three of 27 rabbits survived to hospital discharge. Median time of return to normal or near-normal eating was 1 day (interquartile range, <1 to 3 days). Median survival time was 859 days (interquartile range, 567 to 1092 days). Dental malocclusion was a reported complication in 12 of 16 rabbits with follow-up data. However, only five of 12 rabbits developed associated clinical signs requiring corrective dentistry. Maxillofacial fracture in rabbits may present with similar clinical signs and findings to other conditions such as odontogenic disease. Successful outcomes with infrequent long-term clinical complications are associated with management strategies that emphasise early functional recovery.

The level of knowledge about dental malocclusion in students at Islamic boarding schools

Introduction: Malocclusions often found daily include crowding of teeth, open bites, cross bites, protrusion, and maxillary or mandibular teeth. This proves that the community's need for orthodontic treatment is very high. Knowledge results from human knowledge, which occurs after people sense certain objects. A person's knowledge of an object contains two aspects, namely positive aspects and negative aspects. Purpose: To identify the level of knowledge about dental malocclusion in students at Islamic boarding schools. Methods: The questionnaire was prepared for pre and post-tests. The questionnaire contains 12 questions using the Guttman scale which has two answer choices "yes" or "no", where positive answers are given a score of 1 and negative answers are scored 0. Results: There was a significant increase of understanding in the mean of subject matter from the post-test mean was higher (14,4%) than the pre-test rate (12,1%) with a significant difference (P=0.000) Conclusion: The goal of this community service was to successfully provide counseling about the importance of awareness of dental malocclusion at the Islamic Boarding School in Karangmojo, Ponorogo, East Java by conducting a questionnaire of pretest and posttest to understand the level of knowledge of dental malocclusion. The level of knowledge was increased by the result of the post-test mean was higher (14,4%) than the pre-test rate (12,1%) with a significant difference (P=0.000).

Modifiable Risk Factors Related to Oral Diseases in Youth Cuban Baseball Sportsmen

Background Oral health care closes the cycle of medical assistance integrated with sports, becoming a specialized service of great value in Cuba; however, oral diseases in young athletes are very frequent. For effective prevention, it is necessary to know the modifiable risk factors related to these diseases. Objective This study aimed to determine the relationship between risk factors and oral diseases in baseball sportsmen from the sports initiation school of Villa Clara, Cuba. Material and Methods A descriptive, correlational, and cross-sectional study was carried out in the young baseball athletes (N=60) of the 15U (n=30) and 18U (n=30) divisions (M=15.33; SD=1.49). Data were analyzed using empirical frequency distribution and descriptive statistics. Data normality was tested using asymmetry, kurtosis, and the Kolmogorov-Smirnov test. Mann-Whitney U test was used to determine differences in the risk factors and oral diseases between divisions, and the Tau_b Kendall correlation coefficient was used to determine relationships between both groups of variables. Results Improper tooth brushing, cariogenic diet, and inefficient oral hygiene were the main risk factors, while dental caries, gingivitis, and malocclusions were the oral diseases most notable. Athletes of higher division have greater toxic habits and a cariogenic diet; however, they brush more frequently and have more efficient oral hygiene. Except for the presence of malocclusions, the rest of the conditions are related to the determined risk factors. Conclusion The knowledge about the relationship between risk factors and oral conditions allows to base the design of educational intervention actions focused on the promotion of adequate oral health behaviors in the athletes, which shows the relevance of odontology in sports.

The impact of breastfeeding on facial appearance in adolescent children.

Evidence that breastfeeding impacts the facial features of children is conflicting. Most studies to date have focused on dental and skeletal malocclusion. It currently remains unclear whether such effects are of sufficient magnitude to be detectable on outward facial appearance. Here, we evaluate the extent to which maternally reported breastfeeding is associated with 3D facial shape in a large adolescent cohort. After extracting 3D facial surfaces from MR scans in 2275 9- and 10-year-old children and aligning the surfaces in dense correspondence, we analyzed the effect of breastfeeding on shape as a dichotomous (no/yes) and semi-quantitative (to assess duration in months) variable using partial least squares regression. Our results showed no effect (p = 0.532) when breastfeeding was dichotomized. However, when treated as a semi-quantitative variable, breastfeeding duration was associated with statistically significant changes in shape (p = 3.61x 10-4). The most prominent facial changes included relative retrusion of the central midface, zygomatic arches, and orbital regions along with relative protrusion of forehead, cheek, and mandible. The net effect was that as breastfeeding duration increased, the facial profile in children became flatter (less convex). The observed effects on the face, however, were subtle and likely not conspicuous enough to be noticed by most observers. This was true even when comparing the faces of children breastfed for 19-24 months to children with no reported breastfeeding. Thus, breastfeeding does appear to have detectable effect on outward facial appearance in adolescent children, but its practical impact appears to be minimal.

The Influence of the Type of Breathing on the Masticatory Muscle Patterns in Children.

Background and Objectives: The aim was to compare the activity of the masseter muscles in children with different types of breathing. Materials and Methods: A cross-sectional study was conducted including patients aged 6-12 years with mixed dentition, who came for oral care at the Master's Degree in Pediatric Dentistry program at the Complutense University of Madrid (UCM), according to inclusion and exclusion criteria. The sample was divided into three groups: nasal breathers without dental alterations (control group), oral breathers with dental malocclusion, and oral breathers with previous orthodontic treatment. An electromyography was performed, and statistic methods were conducted with a 95% confidence to contrast hypothesis. Results: A total of 122 children were analyzed and distributed into three groups. The electrical muscle activity of masseters was significantly different between the study groups (p < 0.001 for all comparisons). Pairwise comparisons revealed a significantly higher electrical muscle activity in the control group (nasal breathers) during chewing compared to both groups of oral breathers (p < 0.001 for both comparisons). Orthodontic treatment decreased electrical muscle activity during isometric contraction in oral breathers compared to nasal breathers (p < 0.001), but did not significantly affect electrical muscle activity during chewing. Higher decompensation values were obtained in oral breathers without previous orthodontic treatment compared the other study groups (p < 0.001 for both comparisons), although electrical muscle activity values were similar in both groups of oral breathers (p > 0.05 for both comparisons). Conclusions: Differences in electrical muscle activity between nasal and oral breathers can be confirmed. Oral breathers with and without orthodontic treatment showed lower electrical muscle activity of masseters during chewing than nasal breathers, while at isometric contraction, only oral breathers with previous orthodontic treatment showed lower electrical activity. Higher decompensation values were found in oral breathers without previous orthodontic treatment, in comparison to the control group and oral breathers with previous orthodontic treatment.

Oral health in obese children common findings, prevention, treatment and outcome

Childhood obesity is a significant global public health issue, closely linked to various oral health challenges, including dental caries, periodontal disease, and malocclusion. Obese children are more prone to these dental problems due to dietary habits that include high sugar and carbohydrate intake, poor oral hygiene practices, and systemic inflammation. This review explores the common oral health issues faced by obese children and emphasizes the importance of preventive strategies and tailored treatment approaches. Preventive measures include promoting healthy dietary habits, improving oral hygiene practices, and ensuring regular dental check-ups. Dietary modifications, such as reducing the intake of sugary snacks and beverages, play a crucial role in preventing tooth decay and other dental problems. Educating children and caregivers about proper brushing and flossing techniques and the use of fluoride toothpaste and dental sealants further supports oral health. Regular dental visits allow for early detection and management of dental issues, with professional cleanings, fluoride treatments, and appropriate restorative and periodontal therapies being integral components of care. The outcomes of these comprehensive treatment strategies are generally positive, leading to improved oral health and overall quality of life for obese children. Multidisciplinary collaboration among healthcare providers, including dentists, pediatricians, and nutritionists, is essential to develop effective care plans that address both obesity and oral health. This integrated approach ensures that obese children receive holistic care that promotes lifelong healthy habits, reducing the risk of future dental and systemic health problems. The review underscores the necessity of a concerted effort to address the intertwined issues of obesity and oral health in children, highlighting the potential for significant health improvements through targeted prevention and treatment strategies.

Determination of orthodontic anomaly patterns in patients in the Thrace region and assessment of the relationship between orthodontic anomalies and DMFT indices: a retrospective study

OBJECTIVE: The aim of this study was to investigate the prevalence of dental and skeletal anomalies that could be a cause of malocclusion and their relationship with caries distribution in the western region of Türkiye. MATERIALS AND METHOD: A retrospective study was conducted with 1815 digital panoramic and lateral cephalometric radiographs taken from patients, age ranging between 6 and 47 years, who applied for orthodontic treatment. The lateral cephalometric radiographs, panoramic radiographs, and dental records were reviewed according to skeletal anomaly, dental malocclusion (Angle classification), and decay-missing- filling teeth (DMFT) index. Kruskal Wallis test was used in intergroup comparisons of variables that did not show normal distribution, and Dunn’s multiple comparison test was used in subgroup comparisons. The chi-square test and Yates correction were used in comparisons of qualitative data. RESULTS: The mean DMFT of the dental Class I malocclusion group was statistically and significantly lower than Class II division 1 and Class III malocclusion groups (p &amp;lt; 0.05). The mean DMFT index of Class II subdivision malocclusion group was statistically and significantly lower than that of Class III malocclusion group (p &amp;lt; 0.05). The DMFT index was significantly lower in the skeletal Class I group compared to the skeletal Class II and Class III anomaly groups (p &amp;lt; 0.05). CONCLUSION: There is a correlation between DMFT indices and dental malocclusions as well as skeletal anomalies. By correcting dental malocclusions and skeletal anomalies with orthodontic treatment and providing ideal occlusion, it becomes easier for patients to maintain oral hygiene and DMFT indices might decrease.

Evaluation of foot analysis in the presence of dental malocclusion: A systematic review

Background: Previous studies have reported that the imbalance of occlusion, cervical spine, length of the limb, and asymmetric leg length are related to the presence of muscle compensation. These issues influence some strategies in orthodontic diagnosis for developing an updated stomatognathic system over multidisciplinary care issues. Purpose: This study aimed to obtain orthodontic findings and an orthopedic relationship between foot posture/function and dental malocclusion based on cross-sectional studies. Review: Some findings about postural system disequilibrium in static and dynamic foot postural related to occlusal changes have been reported following the mixed dentition phase. From 248 articles, 5 articles were selected and assessed with the Joanna Briggs Institute critical appraisal cross-sectional checklist and analyzed. Conclusions: Although the selected eligible articles demonstrated a low risk of bias in agreement (p &gt; 0.05) among authors, the evaluation of those cross-sectional studies is still limited and requires further longitudinal studies with precise diagnostic parameters. Those parameters for evaluating the relationship between foot posture and malocclusion should encompass both static and dynamic approaches, including those related to mandibular position, tongue posture and function, bad habits, and temporomandibular disorder.

Association Between ABO Blood Group, Dental Caries, Gingivitis, Impacted Teeth and Malocclusion Among Saudi Adults: A Cross-Sectional Study.

Whether there is a relationship between blood group and the likelihood of acquiring oral diseases. Therefore, the present study investigated the potential association between ABO blood groups and various dental conditions, including dental caries, gingivitis, malocclusion, and impacted teeth, in Saudi adults aged 18 years and older. A cross-sectional study was conducted on 300 participants who met the inclusion criteria. Data collection included assessment of dental caries status using the decayed missing filled teeth (DMFT) and decayed missing filled surfaces (DMFS) indices, evaluation of gingivitis using the Gingival Index, classification of malocclusion according to Angle's classification system, and recording the presence or absence of impacted teeth. The AB blood group had the significantly highest mean DMFS score (8.58±6.63), while the O blood group had the lowest mean DMFS score (6.37±4.43). Additionally, blood group O showed a slightly higher prevalence of gingivitis (51.92%) than the other blood groups. Blood group A demonstrated a higher prevalence of both Class II (34.2%) and Class III (19%) malocclusions, with statistically significant differences. Regarding impacted teeth, blood group AB (48.8%) had the highest occurrence. There exists an association between oral disease and ABO blood group in Saudi adults. The results of this study indicate that individuals with specific blood types may be more prone to oral diseases, which can aid in the early diagnosis and prevention of these conditions.

Malocclusion traits as risk indicators for depression in young adults: A population-based cross-sectional study

BackgroundAlthough malocclusion has historically drawn attention for its effects on craniofacial development, oral function, and aesthetics, recent studies have started to investigate the possible association between malocclusion and other aspects of overall health, such as mental health. ObjectivesThis study aimed to analyze various dental malocclusion characteristics and their potential association with depressive symptoms among young adults. The National Health and Nutrition Examination Survey was used for data procurement. MethodsThis cross-sectional study was conducted using a nationally representative population sample, including data from 3,806 participants surveyed between 1988 and 1994 under the National Health and Nutrition Examination Survey III. The inclusion criteria were completion of the clinical assessment for malocclusion traits, being dentate, reporting no history of previous or current orthodontic treatment, reporting no dental pain, and responding to a questionnaire about psychiatric status. Statistical evaluations involved logistic regression modeling and chi-squared tests, considering the complex sampling design nature of the survey. ResultsCrude and adjusted logistic regression models indicated no significant association between malocclusion traits and major depressive episodes (MDEs). Conversely, the same models revealed a positive association between malocclusion traits (specifically, upper crowding and two or more cumulative malocclusion traits) and dysthymia in both crude and adjusted analyses. ConclusionSpecific malocclusion traits were associated with dysthymia, whereas no such associations existed with MDEs. These findings suggest that the association between malocclusion and depression is complex and multifaceted.

Evaluation of the efficiency of passive self-ligating versus conventional brackets in the alignment of mandibular crowded teeth (A comparative study)

Evaluation of the efficiency of passive self-ligating versus conventional brackets in the alignment of mandibular crowded teeth (A comparative study)

Oral issues and childhood stress in eight-to-ten-year-old schoolchildren: a case-control study.

The aim of the present study was to investigate whether oral problems, harmful oral habits, and sociodemographic factors are associated with the occurrence of stress in schoolchildren. A case-control study nested within a cross-sectional study was conducted with a sample of 375 schoolchildren eight to ten years of age in the city of Diamantina, Brazil. The case group (with childhood stress) and control group (without childhood stress) were matched for age and sex at a 1:4 ratio (75 cases to 300 controls). Data collection involved the self-administration of a questionnaire by parents/caregivers addressing sociodemographic characteristics and the child's history of harmful oral habits. The children answered the Child Stress Scale (CSS) and underwent a clinical oral examination to determine the presence/absence of dental caries, malocclusion, and traumatic dental injuries. Data analysis involved the calculation of frequencies, the chi-square test, and conditional logistic regression (95% CI; p ≤ 0.05). The final adjusted conditional logistic regression model showed that dental caries (OR = 1.78, 95% CI: 1.01 - 3.14, p = 0.044) and biting objects (OR = 1.81, 95% CI: 1.02 - 3.22, p = 0.041) remained associated with stress in the schoolchildren analysed. The present results showed that children with dental caries and the habit of biting objects were more likely to have childhood stress. The study allows paediatric dentists to expand their knowledge with regards to the influence of oral problems and harmful habits on the occurrence of childhood stress and serves as a guide for decision-making related to oral problems in schoolchildren.