1.Tuberculosis burden in Korea compared with global trends, 1990–2021: a comparative ecological time-trend study
Journal of the Korean Medical Association 2026;69(2):166-177
Purpose:
Tuberculosis (TB) remains a major public health concern in Korea. This study aimed to compare trends in TB burden between Korea and the global population from 1990 to 2021 using data from the Global Burden of Disease 2021 study.
Methods:
We analyzed TB incidence, prevalence, mortality, and disability-adjusted life years by age and sex. Joinpoint regression was used to estimate average annual percent changes in age-standardized rates. Age–period–cohort models were applied to disentangle age, period, and birth-cohort effects. Autoregressive integrated moving average (ARIMA) models were used to forecast age-standardized TB incidence and mortality through 2030.
Results:
The TB burden increasingly shifted toward older adults, with consistently higher rates observed in males in both Korea and globally. Joinpoint regression indicated that Korea experienced more rapid and consistent declines in TB burden compared with global trends. Age–period–cohort analyses showed that TB incidence and prevalence in Korea peaked in early adulthood and declined thereafter, with uniformly decreasing period and cohort effects from 1990 to 2021, whereas global patterns were less stable. ARIMA forecasts suggested that Korea’s age-standardized incidence rate may approach very low levels by 2030, while global rates are expected to continue declining but remain substantial.
Conclusion
Korea’s TB control measures have outpaced global trends. To achieve TB elimination by 2030, sustained age- and sex-targeted interventions and strengthened public health strategies remain essential.
2.Dental Treatments under General Anesthesia at the Pediatric Dentistry of Pusan National University Dental Hospital from 2014 to 2023
Yuri JEONG ; Jonghyun SHIN ; Soyoung PARK ; Taesung JEONG ; Eungyung LEE
Journal of Korean Academy of Pediatric Dentistry 2025;52(1):35-45
This study analyzed dental treatments under general anesthesia at the Department of Pediatric Dentistry of Pusan National University Dental Hospital from 2014 to 2023. The study results indicated an increased use of general anesthesia, primarily for younger patients, highlighting the increasing need for specialized healthcare professionals in pediatric dentistry. The study population predominantly consisted of male patients and those residing in Gyeongsangnam-do province. The most common treatment for dental caries was restorative, followed by surgical procedures and orthodontic interventions. The number of surgical procedures abruptly increased after 2020. However, pulp treatments and restorations using stainless steel or zirconia crowns decreased over time, with increased resin restorations. Individuals with disabilities more frequently undergo repeat dental procedures under general anesthesia, indicating potential barriers to access for this population. This study emphasizes the need for comprehensive and equitable dental care for all individuals, particularly those with disabilities. Future research should focus on expanding the scope of the analysis to include multiple institutions and exploring long-term outcomes of patients receiving dental treatment under general anesthesia to inform policy development and best practices in pediatric dentistry.
3.Maxillo-mandibular Transverse Relationship of Primary Second Molar and Permanent First Molar of Children in Mixed Dentition: A Cone-Beam Computed Tomography Analysis
Suhae KIM ; Eungyung LEE ; Soyoung PARK ; Taesung JEONG ; Jonghyun SHIN
Journal of Korean Academy of Pediatric Dentistry 2025;52(1):61-75
This study examined the transverse relationship between the maxilla and mandible in children with mixed dentition. The study focused on the primary second molar and the permanent first molar in relation to the anteroposterior skeletal patterns using cone-beam computed tomography (CBCT). A total of 102 patients from the Pediatric Dentistry Department at Pusan Dental Hospital were classified into three skeletal groups (Class I, Ⅱ, Ⅲ) based on the ANB angle (angle formed by A-point-nasion-B-point). CBCT scans were analyzed to assess the transverse dimensions of basal bone and dento-alveolar measurements. The results showed that Class Ⅲ patients exhibited a significantly narrower maxillary basal bone compared with Class I and Ⅱ patients. The mandibular basal width was not significantly different between the classes. For primary second molars, Class Ⅲ patients showed significantly narrower maxillary alveolar bone width at the root bifurcation level (51.7 ± 2.5 mm, p < 0.05) compared with Class I and II patients. For permanent first molars, the maxillary occlusal fossa distance was smallest in Class II (45.4 ± 2.4 mm, p < 0.05), and was significantly different from Class I and Class Ⅲ. Maxillary first molar inclination was more lingually inclined in Class Ⅱ patients (99.0 ± 4.2°, p < 0.05) compared with Class Ⅲ patients, whereas Class Ⅲ patients exhibited more buccal inclination. This study highlights the correlation between transverse discrepancies and anteroposterior skeletal classifications, with Class Ⅲ showing a narrower maxillary base and Class Ⅱ patients presenting greater lingual compensation. These findings may aid pediatric dentists in diagnosing transverse relationships in mixed dentition.
4.Anatomical and Dentoalveolar Features of Maxillary First Premolar Abnormal Eruption in Mixed Dentition
Bumjoon LEE ; Eungyung LEE ; Jonghyun SHIN ; Taesung JEONG ; Soyoung PARK
Journal of Korean Academy of Pediatric Dentistry 2025;52(2):169-180
This study aims to analyze anatomical and structural changes related to abnormal eruption of the maxillary first premolar in children, focusing on the correlation between maxillary sinus pneumatization volume and positional shifts in the premolar and canine. Twenty-nine children, with Hellman dental age IIIA, exhibiting unilateral abnormal eruption of the maxillary first premolar, were selected. Maxillary sinus morphology and the positions of tooth buds were assessed through CBCT images, and 3D-scanned diagnostic models were used to evaluate the upper arch form. The affected and control sides were compared in terms of sinus pneumatization and the positions of the first premolar and canine tooth buds. Maxillary sinus pneumatization on the affected side was significantly increased (p = 0.0202), while no significant difference was found in the total sinus volume (p = 0.9694). On the affected side, the apex of the first premolar was positioned more anteriorly (p = 0.0029) and more palatally (p = 0.0011) than that on the unaffected side. Additionally, the apex of the canine was positioned more posteriorly on the affected side compared to that on the unaffected side (p = 0.0039). Model analysis revealed that the anteroposterior total arch length on the affected side was longer than that on the control side (p < 0.0001), while the transverse width did not show any statistically significant difference. These findings suggest a potential relationship between maxillary sinus pneumatization and the abnormal eruption path of the first premolar, as well as possible effects on the eruption of canines.
5.Seven Cases of Immunoglobulin G4-Related Disease in Submandibular Glands
Jaeman PARK ; Wookjin OH ; Taesung JEON ; Jae-Gu CHO
Korean Journal of Otolaryngology - Head and Neck Surgery 2025;68(1):40-46
Immunoglobulin G4-related disease (IgG4-RD) is a chronic fibroinflammatory systemic disorder. Predominantly, patients with submandibular swelling are diagnosed with this disease in otorhinolaryngology. However, due to its rarity and the limited understanding of the disease, accurate diagnosis can be challenging. Through a retrospective review of seven cases of IgG4- RD patients, our study analyzed the symptoms, diagnostic approaches, treatment modalities, and prognosis of the condition, contributing to a better understanding of IgG4-RD.
7.Temporal Radiographic Trajectory and Clinical Outcomes in COVID-19Pneumonia: A Longitudinal Study
Dong-Won AHN ; Yeonju SEO ; Taewan GOO ; Ji Bong JEONG ; Taesung PARK ; Soon Ho YOON
Journal of Korean Medical Science 2025;40(9):e25-
Background:
Currently, little is known about the relationship between the temporal radiographic latent trajectories, which are based on the extent of coronavirus disease 2019 (COVID-19) pneumonia and clinical outcomes. This study aimed to elucidate the differences in the temporal trends of critical laboratory biomarkers, utilization of critical care support, and clinical outcomes according to temporal radiographic latent trajectories.
Methods:
We enrolled 2,385 patients who were hospitalized with COVID-19 and underwent serial chest radiographs from December 2019 to March 2022. The extent of radiographic pneumonia was quantified as a percentage using a previously developed deep-learning algorithm. A latent class growth model was used to identify the trajectories of the longitudinal changes of COVID-19 pneumonia extents during hospitalization. We investigated the differences in the temporal trends of critical laboratory biomarkers among the temporal radiographic trajectory groups. Cox regression analyses were conducted to investigate differences in the utilization of critical care supports and clinical outcomes among the temporal radiographic trajectory groups.
Results:
The mean age of the enrolled patients was 58.0 ± 16.9 years old, with 1,149 (48.2%) being male. Radiographic pneumonia trajectories were classified into three groups: The steady group (n = 1,925, 80.7%) exhibited stable minimal pneumonia, the downhill group (n = 135, 5.7%) exhibited initial worsening followed by improving pneumonia, and the uphill group (n = 325, 13.6%) exhibited progressive deterioration of pneumonia. There were distinct differences in the patterns of temporal blood urea nitrogen (BUN) and C-reactive protein (CRP) levels between the uphill group and the other two groups. Cox regression analyses revealed that the hazard ratios (HRs) for the need for critical care support and the risk of intensive care unit admission were significantly higher in both the downhill and uphill groups compared to the steady group. However, regarding in-hospital mortality, only the uphill group demonstrated a significantly higher risk than the steady group (HR, 8.2; 95% confidence interval, 3.08–21.98).
Conclusion
Stratified pneumonia trajectories, identified through serial chest radiographs, are linked to different patterns of temporal changes in BUN and CRP levels. These changes can predict the need for critical care support and clinical outcomes in COVID-19 pneumonia.Appropriate therapeutic strategies should be tailored based on these disease trajectories.
8.Seven Cases of Immunoglobulin G4-Related Disease in Submandibular Glands
Jaeman PARK ; Wookjin OH ; Taesung JEON ; Jae-Gu CHO
Korean Journal of Otolaryngology - Head and Neck Surgery 2025;68(1):40-46
Immunoglobulin G4-related disease (IgG4-RD) is a chronic fibroinflammatory systemic disorder. Predominantly, patients with submandibular swelling are diagnosed with this disease in otorhinolaryngology. However, due to its rarity and the limited understanding of the disease, accurate diagnosis can be challenging. Through a retrospective review of seven cases of IgG4- RD patients, our study analyzed the symptoms, diagnostic approaches, treatment modalities, and prognosis of the condition, contributing to a better understanding of IgG4-RD.
9.Seven Cases of Immunoglobulin G4-Related Disease in Submandibular Glands
Jaeman PARK ; Wookjin OH ; Taesung JEON ; Jae-Gu CHO
Korean Journal of Otolaryngology - Head and Neck Surgery 2025;68(1):40-46
Immunoglobulin G4-related disease (IgG4-RD) is a chronic fibroinflammatory systemic disorder. Predominantly, patients with submandibular swelling are diagnosed with this disease in otorhinolaryngology. However, due to its rarity and the limited understanding of the disease, accurate diagnosis can be challenging. Through a retrospective review of seven cases of IgG4- RD patients, our study analyzed the symptoms, diagnostic approaches, treatment modalities, and prognosis of the condition, contributing to a better understanding of IgG4-RD.
10.Dental Treatments under General Anesthesia at the Pediatric Dentistry of Pusan National University Dental Hospital from 2014 to 2023
Yuri JEONG ; Jonghyun SHIN ; Soyoung PARK ; Taesung JEONG ; Eungyung LEE
Journal of Korean Academy of Pediatric Dentistry 2025;52(1):35-45
This study analyzed dental treatments under general anesthesia at the Department of Pediatric Dentistry of Pusan National University Dental Hospital from 2014 to 2023. The study results indicated an increased use of general anesthesia, primarily for younger patients, highlighting the increasing need for specialized healthcare professionals in pediatric dentistry. The study population predominantly consisted of male patients and those residing in Gyeongsangnam-do province. The most common treatment for dental caries was restorative, followed by surgical procedures and orthodontic interventions. The number of surgical procedures abruptly increased after 2020. However, pulp treatments and restorations using stainless steel or zirconia crowns decreased over time, with increased resin restorations. Individuals with disabilities more frequently undergo repeat dental procedures under general anesthesia, indicating potential barriers to access for this population. This study emphasizes the need for comprehensive and equitable dental care for all individuals, particularly those with disabilities. Future research should focus on expanding the scope of the analysis to include multiple institutions and exploring long-term outcomes of patients receiving dental treatment under general anesthesia to inform policy development and best practices in pediatric dentistry.

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