Due to the development of properties of adhesive materials currently used in dentistry, the bonding ability between the brackets and the tooth enamel has been greatly improved. In general, in situations where cooperation can be obtained, adhesion of the orthodontic bracket through the conventional three-step process can show excellent bonding strength. However, if it is difficult to expect patient cooperation, as in the pediatric dentistry area, or if moisture isolation is not properly performed, the binding strength that does not reach the expected effect. As a result, various products that simplify the process for adhesion are being developed. The aim of this study was to evaluate and compare the shear bonding strength between the conventional 3-step adhesion system, self-etching primer system and one-step adhesion system that reduces the priming process. A total of 60 human maxillary, mandibular premolars were prepared. Group I (control group) were followed conventional 3-step bonding process. Group II were conditioned with self-etching primer. Group III were etched with 37% phosphoric acid and brackets were bonded with self-priming adhesive. The resultant shear bond strength of each group was measured and an adhesive remnant index (ARI) was recorded. The mean shear bond strength of group I, II, III were 14.69 MPa, 11.21 MPa and 12.21 MPa respectively. Significant differences could only be found between group I, II and group I, III (p < 0.05). The ARI indicated no significant difference among all groups.

Glanzmann’s thrombasthenia (GT) is a rare, autosomal recessive inherited congenital disorder, characterized by impaired blood coagulation due to platelet dysfunction. It was first reported by the pediatrician Glanzmann in 1918. GT affects both males and females, and it is more common in regions of the Middle East, India, and France, where intermarriage is common. It has an incidence of about 1 in 1,000,000 people. In South Korea, according to the Division of Rare Diseases, Korea Centers for Disease Control and Prevention, around 200 cases have been reported in 2018. Clinical symptoms include petechia, ecchymosis, epistaxis, and gingival bleeding. The spontaneous loss of deciduous teeth can result in excessive bleeding with that blood transfusion should be considered. Preventing hemorrhages and hemostasis are most important factors in dental treatment. Local bleeding can be controlled by compression, but platelet transfusion can be required by prolonged bleeding. Pediatric dentists can minimize the gingival bleeding by control of the oral hygiene to prevent gingivitis and dental caries. The importance of oral hygiene and periodic recall check-up should be emphasized. During dental treatment, the examination and the treatment plan of patient should be modified to prevention of hemorrhages carefully. A 6-year-old girl with GT was referred for the treatment of dental caries, and resin restoration was performed under nitrous oxide inhalation sedation. After treatment, compression was required for the bleeding control.

Chloral hydrate (CH) has been used in sedation for over 100 years. CH was first synthesized in 1832, the sedative properties were observed in 1861. Because of its easy synthesis, its use was widespread since 1869. There is a record of the use of CH in children as early as 1894. Recently there have been many controversies about safety of CH. Because of the low cost and relatively safe experience CH has still been used for dental sedation in children. After the US FDA recommendation in 2006, US pharmaceutical companies no longer produce commercial CH. However, CH has been used in the form of suspensions prepared from raw materials in many areas of the United States, and reports of adverse events related to death have continued.
CH is the most commonly used drug for sedation in Korea, and there have been some reports of side effects.
Dexmedetomidine, propofol and midazolam were introduced as an alternative for CH. There are various limitations in using them in the pediatric dentistry area and there are many things to consider.
The purpose of this review is to analyze the complications of CH and status of use in Korea, and to introduce alternatives to CH.

The aim of the study is to compare the fluoride release and recharge properties of glass ionomer cements and ‘alkasite’.
Specimens of two glass ionomer cements (Fuji Ⅸ GP and Riva Self Cure), ‘alkasite’ restorative material (Cention N) and composite resin (FiltekTM Z350XT) were prepared. The fluoride release of each specimen was measured for 28 days. Thereafter, 1.23% acidulated phosphate fluoride (APF) gel was applied to experimental groups. No treatment was performed on control groups. The fluoride release was measured for additional 7 days to evaluate the fluoride recharge properties of each materials.
The fluoride release was highest in Riva Self Cure, followed by Fuji Ⅸ GP, Cention N (p < 0.05). Fluoride release of Cention N was measured to be approximately 49% of Fuji Ⅸ GP’s. After the application of 1.23% APF gel, increases in fluoride release were observed in Riva Self Cure, Fuji Ⅸ GP and Cention N (p < 0.05). Fluoride recharge was observed in Cention N as well as in glass ionomer cements. Further studies are required to evaluate the anti-cariogenic properties of Cention N at clinical conditions.

Chloral hydrate is the oldest and most common sedative drug used in moderate sedation for pediatric dental patients. Hence, the purpose of this article is to review the safety and possible adverse events of this drug when used for pediatric dental treatment. A bibliographic search in PubMed, MEDLINE, Cochrane Library and KMbase, KISS, DBpia, KoreaMed, and RISS databases was performed. Using the keywords “dental sedation,” “chloral hydrate,” and “children or adolescent,” 512 scientific articles were found. Subsequently, 183 studies were individually assessed for their suitability for inclusion in this literature review. Altogether, 24 studies were selected. They included 12 cases of death before, during, or after chloral hydrate sedation for dental treatment, majorly due to dosing error and use of multiple sedatives. Additionally, intraoperative adverse events were mostly respiratory problems such as hypoxia and apnea, but most events were temporary. After treatment, prolonged sedation, including excessive sleep and less activity were the most common postoperative adverse events, and even death cases were reported. Despite the wide acceptance of chloral hydrate as a sedative-hypnotic agent, the risk of adverse events and adequate dose should be of great concern when using it for pediatric dental sedation.

Purpose: This study aimed to define coaching in nursing clearly and elucidate its essential role within the context of contemporary nursing education in clinical settings. Methods: A concept analysis was conducted using Rodgers’ evolutionary method. Literature was extracted from databases such as Web of Science, Medline (PubMed) and CINAHL. Results: Results of analysis led to the development of an operational definition of coaching in nursing characterized as an educational approach focusing on nursing tasks. Coaching in nursing is a systematic and formalized process that can enhance the learning experience through interactive engagement rather than direct instruction. The analysis identified five core attributes of coaching in nursing: nursing task-focused, educational, facilitative, processive, and interactive. Conclusion The purpose of this concept analysis was to propose a comprehensive definition of coaching in nursing that could align with its theoretical foundation within modern nursing practice. Using Rodgers' evolutionary concept analysis method, related terms, attributes, antecedents, and outcomes were identified, culminating in a detailed definition. This concept analysis provides a contemporary definition of coaching in nursing, clarifying its meaning, ensuring applicability, and offering guidance for future research, education, and clinical practice.

Purpose: This study aimed to define coaching in nursing clearly and elucidate its essential role within the context of contemporary nursing education in clinical settings. Methods: A concept analysis was conducted using Rodgers’ evolutionary method. Literature was extracted from databases such as Web of Science, Medline (PubMed) and CINAHL. Results: Results of analysis led to the development of an operational definition of coaching in nursing characterized as an educational approach focusing on nursing tasks. Coaching in nursing is a systematic and formalized process that can enhance the learning experience through interactive engagement rather than direct instruction. The analysis identified five core attributes of coaching in nursing: nursing task-focused, educational, facilitative, processive, and interactive. Conclusion The purpose of this concept analysis was to propose a comprehensive definition of coaching in nursing that could align with its theoretical foundation within modern nursing practice. Using Rodgers' evolutionary concept analysis method, related terms, attributes, antecedents, and outcomes were identified, culminating in a detailed definition. This concept analysis provides a contemporary definition of coaching in nursing, clarifying its meaning, ensuring applicability, and offering guidance for future research, education, and clinical practice.

Purpose: This study aimed to define coaching in nursing clearly and elucidate its essential role within the context of contemporary nursing education in clinical settings. Methods: A concept analysis was conducted using Rodgers’ evolutionary method. Literature was extracted from databases such as Web of Science, Medline (PubMed) and CINAHL. Results: Results of analysis led to the development of an operational definition of coaching in nursing characterized as an educational approach focusing on nursing tasks. Coaching in nursing is a systematic and formalized process that can enhance the learning experience through interactive engagement rather than direct instruction. The analysis identified five core attributes of coaching in nursing: nursing task-focused, educational, facilitative, processive, and interactive. Conclusion The purpose of this concept analysis was to propose a comprehensive definition of coaching in nursing that could align with its theoretical foundation within modern nursing practice. Using Rodgers' evolutionary concept analysis method, related terms, attributes, antecedents, and outcomes were identified, culminating in a detailed definition. This concept analysis provides a contemporary definition of coaching in nursing, clarifying its meaning, ensuring applicability, and offering guidance for future research, education, and clinical practice.

Purpose: This study aimed to define coaching in nursing clearly and elucidate its essential role within the context of contemporary nursing education in clinical settings. Methods: A concept analysis was conducted using Rodgers’ evolutionary method. Literature was extracted from databases such as Web of Science, Medline (PubMed) and CINAHL. Results: Results of analysis led to the development of an operational definition of coaching in nursing characterized as an educational approach focusing on nursing tasks. Coaching in nursing is a systematic and formalized process that can enhance the learning experience through interactive engagement rather than direct instruction. The analysis identified five core attributes of coaching in nursing: nursing task-focused, educational, facilitative, processive, and interactive. Conclusion The purpose of this concept analysis was to propose a comprehensive definition of coaching in nursing that could align with its theoretical foundation within modern nursing practice. Using Rodgers' evolutionary concept analysis method, related terms, attributes, antecedents, and outcomes were identified, culminating in a detailed definition. This concept analysis provides a contemporary definition of coaching in nursing, clarifying its meaning, ensuring applicability, and offering guidance for future research, education, and clinical practice.

The aim of this study was to compare compressive strength and microhardness of recently introduced alkasite restorative materials with glass ionomer cement and flowable composite resin. For each material, 20 samples were prepared respectively for compressive strength and Vickers microhardness test. The compressive strength was measured with universal testing machine at crosshead speed of 1 mm/min. And microhardness was measured using Vickers Micro hardness testing machine under 500 g load and 10 seconds dwelling time at 1 hour, 1 day, 7 days, 14 days, 21 days and 35 days. The compressive strength was highest in composite resin, followed by alkasite, and glass ionomer cement. In microhardness test, composite resin, which had no change throughout experimental periods, showed highest microhardness in 1 hour, 1 day, and 7 days measurement. The glass ionomer cement showed increase in microhardness for 7 days and no difference was found with composite resin after 14 days measurement. For alkasite, maximum microhardness was measured on 14 days, but showed gradual decrease.