Professor Un-Bong Baik, DDS, MS, PhD Graduated from Seoul National Univ., Seoul, Korea. Resident & Ph.D. at the Tohoku University, Japan Regular member of Angle Society (North Atlantic) Reviewer of Angle Orthodontists Head of Smile-with Orthodontic Clinic, Seoul, Korea Former President of KOS (Korean Orthognathic Society) DR. 陸開盛 • 美國康乃狄克大學齒顎矯正碩士 • 美國安格式矯正學會正式會員 • 美國齒顎矯正學院院士 • 中華民國署立齒顎矯正專科醫師 • 長庚紀念醫院齒顎矯正專科醫師 • 榮民總醫院齒顎矯正主治醫師

1. Treatment for child's missing & ankylosis.
Missing & ankylosis in growing children are quite common. Ankylosis of the anterior teeth has a lot to do with trauma, but ankylosis of the baby teeth (D,E) occurs a lot without trauma. In this case, many dentists often tells to use it as much as possible, but it should be noted that it can cause other serious problems at a young age. In this session, I would like to talk about the treatment of missing & ankylosis teeth in children, which are often overlooked.

2. Impacted canine & incisors
When a canine impact patient comes, we have to decide whether to wait a little longer, start treatment quickly, remove only covering gingiva, or perform surgical window opening. And if you have surgery, you have to think about how to preserve the gingiva and reduce damage to adjacent teeth. And sometimes, it is important to deal with the problems if it doesn't pull well.
In this session, I would like to talk about the impacted canine & incisors.

1. 矯正拔牙病例全方位考量
為什麼有些矯正病人需要拔牙來治療？不管你用固定矯正器或者用透明牙套，其實都是要達到同樣的治療目標。這次演講特別從各種不同的病例分析用不同的裝置包括固定矯正器、迷你骨全釘及透明牙套展示如何達成治療目標。

2. 開咬的個別診斷及治療方法
在矯正臨床治療，開咬是相對困難，這次演講會從個別診斷（differential diagnosis）分析多個病例，利用不同方法包括如何利用透明牙套治療並詳細介紹其本原理。當然維持治療後的成果也是演講重點之一。