Use pattern of forest resources for people has changed from outdoor recreational to human health promotion; about 12.8 million people now visit recreation forests every year and about 61% of the total populations are aware of the effectiveness of forest healing. Background to forest healing was the strengthening scientific evidence of the effectiveness of forest healing through investment in research and development and conducting the national plans, the revision of laws in relation to forest healing policy. Forest healing policy has diverse meanings for forest owners, local residents, the public, and the government. Forest healing policy has certain limitations; healing forest construct for urban areas, more scientific evidences for forest healing effectiveness, business model for private healing forest.

To analyze the success and survival rates of the Osstem GSII (Osstem, Busan, Korea) implant in type IV bone. A prospective, multicenter (5 centers) study was conducted by examining the relationship between implant success and survival rates, and several patient and surgical parameters. The implants were placed in 82 patients who visited several nationwide dental hospitals and clinics between 2007 and 2008, followed by clinical and radiographic analyses. In type IV bone, the implant success and survival rates were 93.23% and 95.83%, respectively. The maxillary premolar and mandibular anterior tooth areas showed success rates of 100%. The most widely used implant diameter and length was 5.0 and 13 mm, respectively, but the diameter and length had no effect on success rates. However, success rates appeared to decrease with age. The results indicated that the Osstem GSII implant is highly effective in poor-quality type IV bone.

Yoon WJ, et al. J Korean Assoc Oral Maxillofac Surg. 2016 Dec;42(6):345-351. https://doi.org/10.5125/jkaoms.2016.42.6.345

The fracture of dental implants is a rare occurrence in clinical settings. Possible causes of implant fracture include design or production flaws, overloaded occlusion force, implant location, metal fatigue, and bone resorption around the implant. This study reports on the successful removal and reimplantation of fractured implants.