open access
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ISSN : 0376-4672
Purpose: This systematic review aimed to evaluate the impact of antiresorptive drugs on dental implant success rate, and to suggest guidelines for dental implant placement in patients under antiresorptive therapies. Materials and Methods: An electrical search was conducted in databases such as PubMed and Cochrane, followed by Preferred Reporting Items for Systematic reviews and Meta-Analysis (PRISMA) guidelines. the review included studies from 2014 march, focusing on various study designs like randomized control studies, cohort studies, and case series. Results: In a total of 196 articles, based on inclusion criteria, 9 articles were selected. the dental implant success rates across the studies ranged from 36.2% to 100%. a notable association was identified between the dosage and administration route of antiresorptive drugs and dental implant success rates. additionally, presence of dental implant could be potential risk for Medication-Related Osteonecrosis of the Jaw (MRONJ) onset in patients under antiresorptive therapy. Conclusion: Low dose and oral administration of antiresorptive drugs seem to present a lower risk of dental im- plant failure. a multidisciplinary approach is important when considering dental implants for patients on antire- sorptive therapy. Further research is required to refine clinical guidelines for enhanced patient safety and better outcomes in dental implantology. (J Korean Dent Assoc 2025; 63(5): 153-161)
Purpose: In pursuit of international cooperation, this study aims to investigate changes in the educational envi- ronment at Laos dental college during the COVID-19 pandemic. Materials and Methods: The Dundee Ready Education Environment Measure (DREEM) was administered to stu- dents at Laos dental college in 2020, 2022, and 2024 to assess their perceptions of the educational environment. A total of 213, 314, and 133 students participated in the surveys for each respective year. The data allowed us to compare students’ perceptions across years and among different groups. Results: Overall, the DREEM scores were lowest in 2022 but increased again in 2024. When comparing results by academic year, first- and second-year students exhibited an increase in 2022, whereas third- and fourth-year as well as fifth- and sixth-year students recorded their lowest scores in that year. Conclusion: This study highlights the need to diversify clinical education approaches in response not only to the pandemic but also to evolving changes in the healthcare environment
Purpose: This study aimed to evaluate the marginal and internal fit of zirconia crowns fabricated using 3-dimen- sional (3D) printing technology with different offset parameters. Materials and Methods: A maxillary right first molar of a standard typodont (D85DP-500B.1; Nissin Dental, Kyoto, Japan) was prepared for a zirconia crown with a 1.0 mm margin. Virtual casts were obtained using an intraoral scanner (i700; MEDIT, Seoul, Republic of Korea). Crown designs were created with CAD software (Dentbird; IMAGOWORKS, Seoul, Republic of Korea) using specific parameters: cement space (50 µm), adaptive extra gap (0 µm), height for minimal gap (50 µm), and margin width (100 µm). Zirconia crowns were fabricated using a vat photopolymerization DLP 3D printer (TD6+; 3D Controls, Busan, Republic of Korea). Two offset groups were de- fined: the Offset -70 µm group (outermost XY-direction pixels reduced by one unit) and the Offset 0 µm group (no adjustment). All crowns were printed with a 50 µm Z-layer thickness. Eighteen crowns were fabricated (N = 9 per group). Marginal and internal fit measurements were conducted using the triple-scan method. The measured marginal and internal gaps were statistically compared using an independent t-test (α = 0.05). Results: The offset -70 µm group demonstrated significantly smaller marginal gaps (P<0.05) and internal gaps (P>0.05) compared to the offset 0 µm group. Conclusion: These findings suggest that adjusting the XY-direction offset may help minimize manufacturing er- rors, enhancing the overall accuracy of zirconia crown fabrication
