RESUMEN
Background: This study examines the surface changes of stainless steel miniplates and screws after their retrieval from patients who underwent maxillofacial trauma and orthognathic surgery. The assessment focuses on comparing the alterations in these materials, aiming to contribute to our understanding of their durability and performance in clinical settings. Materials and Methods: A total of 60 stainless steel miniplates and screws were collected from 30 patients who had previously undergone either maxillofacial trauma or orthognathic surgery. The retrieved miniplates and screws were carefully removed from the patients and cleaned to remove any organic debris. Each specimen was then examined for surface changes. Surface changes were evaluated using visual inspection, scanning electron microscopy (SEM), and roughness measurements. Visual inspection provided a qualitative assessment, while SEM allowed for a more detailed examination of the surfaces. Roughness measurements were conducted using a profilometer. Results: Visual inspection revealed varying degrees of surface changes in the retrieved miniplates and screws. These changes included scratches, corrosion, and discoloration. SEM analysis confirmed the presence of surface alterations, with some specimens showing more significant damage, such as pitting and cracks. Roughness measurements indicated an increase in surface roughness for both miniplates and screws, suggesting that the surfaces had become less smooth. Conclusion: This comparative study of stainless steel miniplates and screws retrieved from maxillofacial trauma and orthognathic surgery patients demonstrated that these materials undergo surface changes over time.
RESUMEN
BACKGROUND: Orthodontic treatment is a widely embraced intervention aimed at enhancing dental aesthetics and correcting malocclusions among adolescents. However, concerns persist regarding its potential impact on oral health, particularly on the development of dental caries. This study aimed to systematically investigate the relationship between orthodontic treatment and the incidence of new carious lesions among adolescents. METHODS: A prospective cohort design involving adolescents aged 12-18 years was employed. A total of 82 patients met the inclusion criteria. In addition, an age-matched control group of 82 participants who did not undergo orthodontic treatment was included. The study included both a treatment group undergoing orthodontic treatment (braces or aligners) and an age-matched control group that did not undergo any orthodontic intervention. Demographic characteristics, orthodontic treatment details, and oral hygiene practices were documented at baseline and throughout the study period. Dental examinations at six-month intervals post-treatment were conducted to track the incidence and progression of carious lesions. RESULTS: The demographic characteristics, baseline oral health status, orthodontic treatment details, and oral hygiene practices were comparable between the treatment and control groups. Post-orthodontic treatment assessment revealed a slightly higher incidence of new carious lesions in the treatment group (14.6%) than in the control group (9.8%), although this difference was not statistically significant (p = 0.15). Dental examinations at six-month intervals demonstrated a gradual increase in caries incidence over time in both groups, with no substantial disparities observed. CONCLUSIONS: This study provides a comprehensive examination of the relationship between orthodontic treatment and the incidence of new carious lesions among adolescents. While a trend towards higher caries incidence in the treatment group was observed, the difference was not statistically significant. These findings contribute to the existing body of knowledge and emphasize the need for ongoing research to guide clinical practice.
RESUMEN
BACKGROUND: This study aimed to know the prevalence of dental caries among children having malocclusion. MATERIALS AND METHODS: This cross-sectional study included 880 students aged 1215 years, among whom 488 were boys and 392 were girls. A proforma was prepared to record dental caries status and dental esthetic index (DAI) using the WHO Oral Health Assessment Form (1997). Data were analyzed using Student's t-test and ANOVA. The P value of 0.05 or less was considered as statistically significant. RESULTS: It was found that 644 (73.2%) had no abnormality or minor malocclusion, whereas 115 (13.0%), 100 (11.4%) and 21 (2.4%) had definite, severe and very severe or handicapping malocclusion, respectively. Overall mean of decayed teeth (DT) component was found to be 0.95 ± 1.006, missing teeth 0.23 ± 0.670 and filled teeth 0.23 ± 0.559 and decayed, missing, filled tooth (DMFT) was 1.41 ± 1.483. DT and overall DMFT component significantly increased with increasing DAI of malocclusion (P ≤ 0.05). CONCLUSION: The severity of dental caries showed positive relation with DAI and age.