Self-perception and self-recognition of facial profiles in adolescents referred to orthodontic treatment.

OBJECTIVES: To investigate self-recognition and self-perception among participants with straight, convex, and concave profiles. MATERIALS AND METHODS: This cross-sectional study was conducted using a questionnaire with questions about demographic information, self-perception of the facial profile, satisfaction with profile esthetics, expectations about profile changes after completing orthodontic treatment, motivational factors, and self-recognition. For the self-recognition question, profiles of the respondents were blackened and inserted into the questionnaire. Participants were categorized into three groups: those exhibiting a convex, straight, and concave profile. RESULTS: There was no statistically significant difference between the straight, concave, and convex profile groups regarding self-recognition and self-perception. Participants showed greater ability in self-recognition than self-perception of their soft-tissue profile (P = .001). Females showed higher capability in self-perception than males (P = .001). CONCLUSIONS: Self-recognition and self-perception of the soft-tissue profile are not influenced by facial convexity.

Effect of verbal and written information on the perception of pain and analgesic consumption, in adolescent orthodontic patients: A randomised controlled trial.

OBJECTIVE: To investigate the impact of written instructions, about post-bonding pain, on patients' pain perception and analgesic consumption and to evaluate the correlation of pain with personality types. DESIGN: Two-arm parallel randomised controlled trial. SETTING: University Hospital Centre Zagreb, Zagreb, Croatia. METHODS: Participants included adolescents in the permanent dentition with mild or moderate crowding. RANDOMISATION: The participants were randomly allocated, using computer-generated random list, into two groups. INTERVENTIONS: After bonding and archwire insertion, all participants received oral instructions on potential pain occurrence and pain control. Participants in the study group also received written information on post-bonding pain. OUTCOMES: Pain intensity was evaluated using the Numerical Rating Scale immediately after (T0), 2 days (T1) and 7 days (T2) after the placement of the fixed orthodontic appliance. Analgesic consumption was assessed as yes or no, and personality traits were assessed using the Big Five Inventory. Operators who scored pain intensity and recorded analgesic consumption and personality traits were blinded to the group allocation. Statistical analyses included the t-test, Mann-Whitney U-test, Spearman correlations and stepwise regression analysis. RESULTS: The highest rate of pain was recorded at T1 (P < 0.001). No statistically significant difference in pain perception between groups was observed. There was no statistically significant difference in analgesic consumption between the two groups (P = 0.81). The correlations between personality traits and pain perception were not significant. CONCLUSION: The additional written information had little impact on pain perception, and it had no relationship to personality types. The perception of pain and analgesic consumption were not affected by the provision of additional written information (P = 0.81). Participants' personality types did not affect the impact of the information given.

Influence of pH levels and beverage exposure on force decay and color stability of orthodontic elastomeric chains: An experimental study.

Aim of study: To assess the impact of pH level on force decay and color stability of orthodontic elastomeric chains (EOC) after exposure to commonly used beverages. Materials and methods: A total of 120 chain cuts were prepared from 2 different manufacturers (GC Orthodontics Europe GmbH, Breckerfeld, Germany, and FORESTADENT® - Bernhard Foerster GmbH, Pforzheim, Germany). According to the distance between loops, two types of chains were selected from each manufacturer: short and medium ones. Chains were immersed into 10 commonly used beverages with different pH values. After 7 days, force degradation was evaluated with the universal machine for mechanical testing (Model 4411; Instron, Canton, USA) and color change using a VITA Easyshade® digital spectrophotometer. Kruskal-Wallis with post-hoc Dunn's test for intergroup comparison and Wilcoxon rank test for intragroup comparison. Results: Initial force varied among EOC brands, with GC short chains having the highest force and Forestadent medium chains the lowest. The most pronounced force decay occurred within 24 h, notably affecting Forestadent short chains the most, followed by Forestadent medium, GC short, and GC medium chains. Despite a higher force drop rate over seven days, short EOCs maintained higher forces than medium EOCs. GC EOCs consistently maintained higher forces after seven days compared to Forestadent EOCs. After the immersion of EOC in different solutions for 24 h, only Evian water, Soy milk, and Coconut water did not change color. After 7 days, the greatest color change was recorded in coffee. Conclusion: There is no correlation between pH value and force decay of polyurethane chains. Short chains showed more constant force delivery and greater value of remaining force in comparison to medium ones. Color stability was mostly affected by coffee, followed by matcha tea, soy milk, and apple juice.

Awareness and usage of mobile applications as an orthodontic diagnostic tool among Croatian orthodontic clinicians.

OBJECTIVE: To assess the impact of gender and orthodontic qualification length on the awareness, knowledge and usage of orthodontic diagnostic mobile applications, non-diagnostic mobile applications and social media platforms among orthodontic clinicians. DESIGN: Cross-sectional questionnaire-based study. SETTING: The Republic of Croatia. PARTICIPANTS: A total of 92 orthodontic specialists, members of the Croatian Dental Chamber. METHODS: This study was conducted using a questionnaire distributed via email to orthodontic clinicians between May and July 2022. RESULTS: In total, 92 respondents were divided into groups according to sex and median orthodontic qualification length: more recently qualified (MRQ) with ⩽12 years; and longer qualified (LQ) with >12 years. Nearly one-third of respondents did not have any prior knowledge of mobile applications used as an orthodontic diagnostic tool. MRQ respondents were more interested in using mobile apps as opposed to computer software for digital analysis (P < 0.05). This interest was in a negative correlation with orthodontic qualification length (P < 0.01) and was more prevalent among female respondents (P < 0.001). About one-third (32.6%) of respondents did not use non-diagnostic mobile applications and 44.6% did not use social media platforms. Nearly two-thirds (62%) of the respondents did not promote their work through social media. Male respondents and LQ promoted their work more frequently than others (P < 0.05). The usage of other mobile applications was in a positive correlation with the knowledge and awareness of orthodontic mobile applications (P < 0.05). CONCLUSION: Orthodontic clinicians lacked knowledge, awareness and the usage of orthodontic diagnostic mobile applications according to sex and orthodontic qualification length. One-third used non-diagnostic mobile applications and less than half used social platforms in daily clinical work.

Resistance of PETG Materials on Thermocycling and Brushing.

The aim was to assess the impact of thermocycling and brushing on the surface roughness and mass of PETG material-the most commonly used for orthodontic retainers. A total of 96 specimens were exposed to thermocycling and brushing with three different kinds of toothbrushes depending on the number and thickness of the bristles. Surface roughness and mass were evaluated three times: initially, after thermocycling, and after brushing. In all four brands, both thermocycling and brushing increased surface roughness significantly (p < 0.001), with Biolon having the lowest and Track A having the highest. In terms of brushing, only Biolon samples showed statistically significant increased roughness after brushing with all three types of brushes, in comparison to Erkodur A1, where differences were not statistically significant. Thermocycling increased the mass of all samples, but a statistically significant difference was found only in Biolon (p = 0.0203), while after brushing, decreased mass was found in all specimens, statistically significant only in Essix C+ (CS 1560: p = 0.016). PETG material showed instability when exposed to external influences- thermocycling produced an increase in roughness and mass, and brushing mostly caused an increase in roughness and decrease in mass. Erkodur A1 demonstrated the greatest stability, whereas Biolon demonstrated the lowest.

Cheilitis: A cross-sectional study-multiple factors involved in the aetiology and clinical features.

OBJECTIVE: Since the aetiologies of cheilitis are broad and overlapping, the purpose of this cross-sectional clinical study was to examine the multiple factors involved in aetiology and the disease's clinical features. SUBJECTS AND METHODS: We analysed cheilitis prevalence, demography, clinical features, patients' habits, psychological stress, systemic diseases, vitamin B9, B12 and iron serum levels and allergy test results in a total of 130 subjects with cheilitis, plus 22 healthy subjects. RESULTS: The most common cheilitis types were: cheilitis simplex and eczematous cheilitis (28.5%); herpetic cheilitis (16.9%); and exfoliative and angular cheilitis (7.7%). Concerning bad habits, there was a significant association/connection between self-reported saliva at the corners of the mouth and angular cheilitis, and between lip licking/biting and exfoliative cheilitis. Common associated conditions were skin diseases (56.5%) and atopy (84%). Vitamin B9 and B12 serum and iron values were mostly within the normal reference range. The patients suffering from herpetic cheilitis had significantly higher psychological/mental stress levels than the control group. CONCLUSION: To our knowledge, this is the first study of cheilitis patients that has simultaneously analysed aetiological factors, characteristics of the disease and diagnostic parameters.

ASSOCIATION BETWEEN ALLERGIC REACTIONS AND LIP INFLAMMATORY LESIONS (CHEILITIS).

The purpose of this study was to examine the possible association between cheilitis and allergic reactions, and to use allergy skin tests to identify the allergens that induce allergic reactions in cheilitis patients (type I and type IV). We included 50 patients with recurrent cheilitis (reversible cheilitis) who were dermatologically examined and agreed to undergo allergy skin tests, i.e., patch test and prick test. Additionally, clinical pictures and patient mental stress levels were examined using the Perceived Stress Scale (PSS). Positive prick tests (atopy) were recorded in 84% of patients with cheilitis. The most frequently found allergens were contact allergens (54%) (cobalt chloride, nickel sulfate and thimerosal) and inhalant allergens (46%). The patch test positive subjects who used cosmetic, hygiene, and decorative products were significantly more likely to have swollen and red lips than the patch test negative subjects. Also, low stress levels were recorded less frequently in patients with confirmed allergies than in non-allergic patients. The results indicated a higher incidence of cheilitis in the people prone to allergies (atopics) and confirmed an association between cheilitis and allergies. To our knowledge, this is the first study in patients with cheilitis, which simultaneously analyzed allergies, their clinical features and PSS in the same patients.

Color Stability of Orthodontic Ceramic Brackets and Adhesives in Potentially Staining Beverages-In Vitro Study.

The aim of this study was to evaluate the color stability of esthetic ceramic brackets and adhesive samples after immersion in most commonly consumed beverages. A hundred ceramic brackets from five different manufacturers (Forestadent®, G&H®, GC, DynaFlex®, and American Orthodontics) and 120 samples of adhesives (3M™Transbond™ XT and American Orthodontics BracePaste® color change adhesive and BracePaste® adhesive) were immersed into four different solutions: coffee, Coca-Cola®, the vitamin drink Cedevita®, and artificial saliva (control group). The samples were kept in an incubator at 37 °C. Color readings were evaluated before (T0), at 24 h (T1), 72 h (T3), 7 days (T4), and 14 days (T5) after initial immersion using a spectrophotometer according to the L*a*b* color scale. All the examined brackets showed a statistically significant difference in discoloration (p = 0.001). 20/40™ Brackets (American Orthodontics) showed the best color stability, while the greatest color modification was recognized in QuicKlear® III (Forestadent®) brackets. Regarding adhesives, the greatest staining was observed in the BracePaste® color change adhesive and the least in the Transbond™ XT samples. In conclusion, color change occurs in all solutions, including control groups, and coffee has the greatest impact on color stability.

Diagnostic management of cheilitis: an approach based on a recent proposal for cheilitis classification.

Currently, there are no clear recommendations for diagnostic management of lip inflammation and cheilitis, which is evident in the varied nomenclature and subtypes found in medical literature on cheilitis. This can confound diagnostic management. We therefore recently put forth a proposal for cheilitis classification, defining three groups of cheilitis based on duration and etiology: mainly reversible cheilitis, mainly irreversible cheilitis, and cheilitis connected to other diseases. The most common forms of cheilitis are the reversible types, usually of short duration and commonly easily resolved or treated. In contrast, irreversible types of cheilitis are rare, are harder to treat, and are confirmed only after a biopsy of an inflamed lesion. To correctly diagnose and manage the different types, practitioners must consider several factors, including visible manifestations of the disease, related diseases and symptoms, personal habits, weather conditions, allergies, nutritional deficiencies, and results from tissue swabs and biopsies. In addition, multispecialty collaboration and communication involving dermatology, oral pathology, clinical immunology, otorhinolaryngology, rheumatology, and other fields can be crucial for patient outcome. We believe our classification system would be of great benefit to researchers, patients, and doctors by simplifying both nomenclature and disease recognition, thus ensuring timely and adequate treatment.