Purpose: Due to chronic toxicity, tacrolimus-sparing is an important issue in kidney transplant recipients (KTRs). Several studies have shown that bisphosphonate use is associated with favorable graft outcomes in KTRs. We investigated whether the association between tacrolimus trough levels (TTLs) and graft outcomes differed according to bisphosphonate use in KTRs. Materials and Methods: We conducted a retrospective study encompassing 1441 KTRs who were administered tacrolimus-based immunosuppressants. The primary exposure was a time-dependent cross-product of TTLs (low TTLs vs. normal-high TTLs with a reference of 6 ng/mL) and bisphosphonate use. Two primary outcomes were evaluated: overall graft loss (death or conversion to kidney replacement) and an estimated glomerular filtration rate (eGFR) <30 mL/min/1.73 m 2 . Results: During the median follow-up of 6.1 (3.4–9.7) years, overall graft loss occurred in 157 (10.9%) patients. Cox regression revealed that normal-high TTLs without bisphosphonate use were associated with a reduced risk of overall graft loss [adjusted hazard ratio (aHR), 0.65; 95% confidence interval (CI), 0.45–0.95] compared to low TTLs without bisphosphonate use. The use of bisphosphonate in conjunction with normal-high TTLs correlated with an even lower risk of overall graft loss (aHR, 0.25; 95% CI, 0.08–0.80) compared with low TTLs without bisphosphonate use. In patients with low TTLs, bisphosphonate use was associated with a reduced risk of overall graft loss compared with non-use (aHR, 0.20; 95% CI, 0.09–0.43). Similar trends were observed in the eGFR outcome. Conclusion The use of bisphosphonate was associated with favorable graft outcomes, even with low TTLs. Incorporating bisphosphonate into a conventional immunosuppressant regimen may potentially reduce tacrolimus requirement.

This case report explores the orthodontic treatment of pediatric patients with mild skeletal malocclusion using Invisalign First®. Two cases are presented: (1) a patient with upper incisor protrusion, deep bite, and skeletal Class II malocclusion; and (2) a patient with dental crowding and skeletal Class III malocclusion. Their treatment demonstrated the efficacy of Invisalign First® in achieving arch expansion, tooth alignment, space creation for erupting teeth, and skeletal malocclusion correction. The overall results were satisfactory; however, limitations in rotational and intrusive movements, as well as skeletal improvements, were observed. Careful treatment planning, including overcorrection and patient selection, is essential for achieving optimal outcomes.

This case report explores the orthodontic treatment of pediatric patients with mild skeletal malocclusion using Invisalign First®. Two cases are presented: (1) a patient with upper incisor protrusion, deep bite, and skeletal Class II malocclusion; and (2) a patient with dental crowding and skeletal Class III malocclusion. Their treatment demonstrated the efficacy of Invisalign First® in achieving arch expansion, tooth alignment, space creation for erupting teeth, and skeletal malocclusion correction. The overall results were satisfactory; however, limitations in rotational and intrusive movements, as well as skeletal improvements, were observed. Careful treatment planning, including overcorrection and patient selection, is essential for achieving optimal outcomes.

This case report explores the orthodontic treatment of pediatric patients with mild skeletal malocclusion using Invisalign First®. Two cases are presented: (1) a patient with upper incisor protrusion, deep bite, and skeletal Class II malocclusion; and (2) a patient with dental crowding and skeletal Class III malocclusion. Their treatment demonstrated the efficacy of Invisalign First® in achieving arch expansion, tooth alignment, space creation for erupting teeth, and skeletal malocclusion correction. The overall results were satisfactory; however, limitations in rotational and intrusive movements, as well as skeletal improvements, were observed. Careful treatment planning, including overcorrection and patient selection, is essential for achieving optimal outcomes.

This study aimed to evaluate various factors related to cooperation levels in pediatric dentistry and determine their correlation with children’s cooperation during dental treatments. This study included one hundred children and their guardians who visited the dental hospital at the Chonnam National University. Children and their guardians completed surveys regarding dental fear, dental caries experience, dental treatment experience, temperament, and guardians’ dental anxiety, as well as the background characteristics of the children. Based on these data, factors associated with children’s cooperation during dental treatment were investigated. Dental fear, caries experience during the primary and mixed dentition stages, and temperament traits such as shyness and negative emotionality significantly impacted children’s cooperation during dental visits, with higher levels of these factors corresponding to lower cooperation. The extent of dental experience also modestly influenced children’ s cooperation, with higher levels of cooperation observed in children with greater dental experience. Additionally, children’s dental fear was strongly correlated with guardians’ dental anxiety, increasing as guardians’ anxiety levels increased. Twelve-year-old children exhibited significantly lower levels of dental fear compared to other age groups, and regardless of cooperation levels, injections (shots) were identified as the primary factor inducing dental fear among the children. To improve children’ s cooperation in pediatric dentistry, strategies should focus on alleviating their fears and adopting an individualized approach that consider their oral health status and temperamental traits.

This study analyzed parents’ perceptions of pediatric dentistry and pediatric dental specialists, identified factors influencing their choice of dental practice for children, and compared perceptions between those with and without pediatric dentistry experience. A nationwide online survey (February 15 - 19, 2024) was conducted among 500 parents of children aged 15 years or younger: 170 from Seoul/Gyeonggi/ Incheon, 100 each from Chungcheong, Gyeongsang, Jeolla, and 30 from Gangwon. Data covered demographics, factors influencing dentist selection for children, awareness of pediatric dentists, and insights on whether parents had visited a pediatric dentist. 75.6% had visited a pediatric dental clinic, and 49.6% recognized pediatric dental specialists. Among visitors, 59.5% were aware of pediatric dental specialists, compared to 18.9% of non-visitors. Furthermore, 90.7% of parents aware of pediatric dental specialists had visited a clinic, versus 60.7% of those unaware. The highest visit rates were among parents with three children, especially aged 7 - 9. Awareness of pediatric dental specialists was highest among parents in their 20s, living in Gangwon, Seoul, Gyeonggi, and Incheon regions, with professional occupations and household monthly incomes of 7.5 - 8.5 million won. Parents with experience visiting pediatric dental clinics prioritized dentists’ expertise; those without experience prioritized short waiting times. Prior experience with pediatric dental clinics significantly increased the intention to revisit and reduced hesitation. Improving parents’ perceptions of pediatric dentists enhances decision-making and accessibility for children’s specialized dental care. Professional associations must raise awareness of pediatric dentistry. Pediatric dentists should prioritize expertise and advance their specializations in pediatric orthodontics.

This review article investigates solid organ transplantation-induced osteoporosis, a critical yet often overlooked issue, emphasizing its significance in post-transplant care. The initial sections provide a comprehensive understanding of the prevalence and multifactorial pathogenesis of transplantation osteoporosis, including factors such as deteriorating post-transplantation health, hormonal changes, and the impact of immunosuppressive medications. Furthermore, the review is dedicated to organ-specific considerations in transplantation osteoporosis, with separate analyses for kidney, liver, heart, and lung transplantations. Each section elucidates the unique challenges and management strategies pertinent to transplantation osteoporosis in relation to each organ type, highlighting the necessity of an organ-specific approach to fully understand the diverse manifestations and implications of transplantation osteoporosis. This review underscores the importance of this topic in transplant medicine, aiming to enhance awareness and knowledge among clinicians and researchers. By comprehensively examining transplantation osteoporosis, this study contributes to the development of improved management and care strategies, ultimately leading to improved patient outcomes in this vulnerable group. This detailed review serves as an essential resource for those involved in the complex multidisciplinary care of transplant recipients.

This comprehensive review critically examines the detrimental impacts of endocrine-disrupting chemicals (EDCs) on bone health, with a specific focus on substances such as bisphenol A (BPA), per- and polyfluoroalkyl substances (PFASs), phthalates, and dioxins. These EDCs, by interfering with the endocrine system’s normal functioning, pose a significant risk to bone metabolism, potentially leading to a heightened susceptibility to bone-related disorders and diseases. Notably, BPA has been shown to inhibit the differentiation of osteoblasts and promote the apoptosis of osteoblasts, which results in altered bone turnover status. PFASs, known for their environmental persistence and ability to bioaccumulate in the human body, have been linked to an increased osteoporosis risk. Similarly, phthalates, which are widely used in the production of plastics, have been associated with adverse bone health outcomes, showing an inverse relationship between phthalate exposure and bone mineral density. Dioxins present a more complex picture, with research findings suggesting both potential benefits and adverse effects on bone structure and density, depending on factors such as the timing and level of exposure. This review underscores the urgent need for further research to better understand the specific pathways through which EDCs affect bone health and to develop targeted strategies for mitigating their potentially harmful impacts.

Patients with pediatric cancer often undergo multiple therapies, such as chemotherapy, radiation therapy, and stem cell transplantation. These treatments, while essential, can result in dental developmental issues, including hypodontia, microdontia, short roots, and delayed dental development. This report presents two cases of pediatric patients diagnosed with neuroblastoma who exhibited severe tooth mobility due to short roots as a complication of cancer treatment. Moreover, we investigated the conservative management of the patients’ conditions using resin wire splints and orthodontic miniscrews for skeletal anchorage along with long-term follow-ups to evaluate their prognosis.

This study aimed to analyze the prevalence and severity of infraoccluded primary molars (IPM) and their correlation with the agenesis of permanent successors (APS). A total of 4,011 panoramic radiographs from children aged 4 to 11 years who had all 8 primary molars were examined. The prevalence of APS was analyzed based on the severity and tooth type of IPM. The prevalence of IPM was 13.0%, and there was no difference between genders. The majority of the children had two IPMs each. In all tooth types, mild infraocclusion was the most prevalent, whereas severe infraocclusion was the least frequent. Among the types of primary molars, the lower primary first molar (62.3%) was the most affected, followed by the lower primary second molar (27.7%), the upper primary second molar (5.8%), and the upper primary first molar (4.2%). Infraocclusion was 11.2 times more prevalent in the mandible than in the maxilla, with no significant difference between the left and right sides. The correlation between IPM and APS was also investigated. Among the subjects, 177 had one or more agenesis of premolars, of whom 54 (30.5%) had IPM. Additionally, among the 521 individuals with IPM, 54 individuals exhibited APS (10.4%). This study identified a noteworthy prevalence of infraocclusion, with notable variations among molar types. The LPFM was particularly affected. The majority of cases were classified as mild in severity. Furthermore, a compelling association between IPM and APS was established. Understanding this connection may enhance treatment strategies for infraoccluded teeth and tooth agenesis.