Edward Chengchuan KO

Edward Chengchuan KO

Head

Division of Oral and Maxillofacial Surgery

Kaohsiung Medical University

Kaohsiung, Taiwan

Takao, Formosa

PhD, The University of Tokyo

Chairman, Membership Committee, 

Asian Association of Oral and Maxillofacial Surgeons

Executive Council, Asian Association of Oral and Maxillofacial Surgeons

Tissue Engineering Lab, College of Dental Medicine, Kaohsiung Med U

Researcher, Dept. of FUJISOFT Cartilage and Bone Regeneration, Tissue Engineering, The U of Tokyo

Most representative Paper for this Takao forum

Edward Chengchuan Ko, Chia-Ming Chang,  Peiying Chang, Chu-Chiang Kao, Kwei-Jing Chen, I-Fan Wu, Michael Yuanchien Chen* Tibial cancellous bone grafting in jaw reconstruction: 10 years of experience in Taiwan. Clinical Implant Dentistry and Related Research 2015;17 Suppl 1:e321-31. SCI類別:DENTISTRY, ORAL SURGERY & MEDICINE 

I.F.= 3.589 (SCI-2014) R/C= 7/88 (8%)

Chang-Wei SU

Dr Chang-Wei SU

Attending Surgeon, DDS

Division of Oral and Maxillofacial Surgery

Kaohsiung Medical University

Kaohsiung, Taiwan

Takao, Formosa

Bachelor of Science, National Taiwan University

DDS, Kaohsiung Medical University

Tumor Excision with Intraoperative Navigation and 3D Printing Technology – A Case Report

Tumor Excision with Intraoperative Navigation and 3D Printing Technology – A Case Report

Chang-Wei SU

Division of Oral and Maxillofacial Surgery

Kaohsiung Medical University

Kaohsiung, TAIWAN

Takao, Formosa

  Great difficulties would be encountered while we would like to excise a deep huge tumor occupying the area in the close proximities to the pterygoid plate, sinus posterior wall and infratemporal fossa. Fatal complications including bleeding and unexpected fracture are of our concern during that kind of surgery. Here we would like to present a case of osteosarcoma with coexistent fibrous dysplasia over the maxilla. Before surgery, we have fabricated a 3D study model in which conveys valuable information and surgical anatomy. Moreover, intraoperative navigation also gave us great assistance in surgical approach as well as precise excision.

Message from President of Asian Association of Oral and Maxillofacial Surgeons

亞洲口腔顎面外科學會理事長致辭
Message from President of Asian Association of Oral & Maxillofacial Surgeons

Message for the 2017 TAKAO Forum of Oral and Maxillofacial Surgery

   
    On behalf of the Asian Association of Oral & Maxillofacial Surgeons, it is my great pride and honor to extend my warmest greetings and congratulations to the organizers and attendees of the 2017 Takao Forum of Oral and Maxillofacial Surgery.

I witnessed the growing importance and scale TFOMS, which has been successfully held in Kaohsiung Medical University. I highly appreciate the great contribution of all participants in Taiwanese OMS society, either speakers or trainees. Especially Dr Edward CC Ko has built this TFOMS conference in Southern Taiwan to a high-quality international academic conference in the minute of Taiwan OMS society. I would expect the mission of this conference to coincide with the governmental South-Bound policy in the healthcare and academic exchange with many other countries.

Again, I look forward to seeing the success of 2017 TFOMS.

SHOU-YEN KAO, DDS, MHA, DMSc

President, Asian Association of Oral & Maxillofacial Surgeons

Vice-Superintendent, Taipei-Veterans General Hospital

Professor, National Yan-Ming University, School of Dentistry

Recent advances in materials and technology of dental implant

Recent advances in materials and technology of dental implant

Dr Hao-Heung CHANG

Division of Oral and Maxillofacial Surgery

National Taiwan University

TAIWAN

Although the popularity of dental implant with high survival rate has been emphasized in recent years. However, the esthetic problem in anterior teeth region and mechanical failure in posterior teeth have become a new challenge after long-term application. Moreover, facilitating implant inserted in bone with compromised quality and quantity and reducing the healing time also been advocated. It seemed there still a lot clinical unmet of needs should be fulfilled in near future.

In this presentation, experiences and research in developing dental materials and technology in School of Dentistry at National Taiwan University in recent years will be reported. First of all, in order to overcome the drawback in esthetic problem in anterior tooth region, a new zirconia implant has been developed then for marketing. Important findings and results in investigation on such a new zirconia implant from bench to clinical application will be presented. Subsequently, in order to overcome the long-term mechanic failure in dental implant, new abutment with adequate cushion effect mimicked biomechanics of periodontium have been developed and fabricated. Basic mechanics of viscoelasticity of periodontium including creep, stress relaxation and hysteresis and their application in improving implant design will be revealed. Finally, in order to hasten the healing process, different composition of bioceramics have been developed and test in their efficacy in bone regeneration both in vitro and in vivo. A possible roadmap in development of injectable bone cement and three-dimensional printing of composite ceramic materials, based on current results in cell and animal testing will be shown in this presentation.

It is hoped that this presentation will provide a new insight in the new material and technology concerning the dental implant, and provide an opportunity for familiarizing or applying these new materials or techniques soon in the future 

Curvilinear Incision on Iliotibial Tract: Our modified Technique in Harvesting Tibial Cancellous Bone Graft

Curvilinear Incision on Iliotibial Tract: Our modified Technique in Harvesting Tibial Cancellous Bone Graft

Clinical Implant Dentistry and Related Research, Volume 17, Supplement 1, 2015

Edward Chengchuan KO

柯　政全

Head

Division of Oral and Maxillofacial Surgery

Kaohsiung Medical University

Kaohsiung, Taiwan

Takao, Formosa

Background: 

Use of proximal tibia as a donor site has been applied in jawbone reconstruction since the 1990s. Catone and colleagues described a U-shaped incision made on the iliotibial tract during tibial cancellous bone procurement for maxillofacial reconstruction in  1992. We used a curvilinear incision on the iliotibial tract in lateral approach in our tibial

cancellous bone harvesting procedure. 

Objectives: 

The objectives of this retrospective study are to describe our modified lateral approach for procuring cancellous graft from the proximal tibia and to assess the bone volume, donor site morbidity, and associated complications.

Material and Methods: 

Eighty consecutive jawbone reconstructions utilizing autogenous tibial cancellous bone grafts in 78 patients from March 1998 through March 2008 were reviewed. The patient group consisted of 45 males and 33 females, ages 18 to 76 (average age 36.1 1 12.3).Minimal postoperative follow-up period was 3 months. Unlike the traditional U-shaped trapdoor incision on the iliotibial tract, our curvilinear incision was made almost parallel to the fibers of that tract.

Result: 

Only mild complications were observed at donor sites, including temporary paresthesia, gait disturbance, and an unpleasant scar. The average procured graft volume was 17.8 mL. We also present the first case of reconstruction of mandibular continuity defects of up to 6 to 7 cm lengthwise by tibial cancellous bone grafting, which has not previously been reported in the English literature.

Conclusion: 

The modified incision on the iliotibial tract allowed access to obtain an equally good bone volume from the lateral aspect of the proximal tibia, and it rendered wound closure much easier than the procuring techniques described in the earlier literature.

KEY WORDS: bone graft, Gerdy’s tubercle, iliotibial tract, jaw reconstruction, tibia

What Can We Expect in Surgery and Conservative Management for TMD Patients

What Can We Expect in Surgery and Conservative Management for TMD Patients

Shan-Ju Chou D.D.S., MS., FRCD(C), 

Orthodontist and Oral and Maxillofacial Surgeon

Wan-Fang Medical Center

Taipei

TAIWAN

        For people presented with facial pain, difficulty in chewing, and limited mouth opening, many clinical practitioners may prescribe different sort of management , such as medication, occlusal splint, physical therapy, and even though surgery. However, the treatment results are not usually predictable and the practitioners and patients may or may not choose the more invasive intervention if the previous results are not satisfactory. For the treatment accuracy, gathering enough information for exact diagnosis and understanding the pathogenesis of this diseases could direct the treatment to right direction and a better outcome.

        Most commonly, the TMJ patients could be divided into 5 categories: Internal derangement (including degenerative changes), benign tumour, malignancy, traumatic adhesion, neuropathy, and systemic disease. Each category has its own clinical characteristic, and it’s not difficult to clarify the aetiology by carefully evaluating the pain pattern, disease course, jaw movement and image. Therefore, the more predicable outcome and prognosis are not impossible missions for TMD patients if the adequate treatment performed.