- 阿尔巴尼亚 / Albania
- 奥地利 / Österreich
- 波黑 / Босна и Херцеговина
- 保加利亚 / България
- 克罗地亚 / Hrvatska
- 捷克共和国 / Česká republika & Slovensko
- 芬兰 / Suomi
- 法国 / France
- 德国 / Deutschland
- 希腊 / ΕΛΛΑΔΑ
- 意大利 / Italia
- 荷兰 / Nederland
- 斯堪的纳维亚 / Nordic
- 波兰 / Polska
- 葡萄牙 / Portugal
- 罗马尼亚 / România & Moldova
- 斯洛文尼亚 / Slovenija
- 塞尔维亚和黑山 / Србија и Црна Гора
- 西班牙 / España
- 瑞士 / Schweiz
- 土耳其 / Türkiye
- 英国和爱尔兰 / UK & Ireland
Dr Paul de Kok studied dentistry at the Academic Centre for Dentistry Amsterdam (ACTA) and is a certified restorative dentist at the Kliniek voor Parodontologie Amsterdam [Amsterdam periodontics clinic], where he treats referred patients with restoration and aesthetic issues. In addition, he teaches indirect restorative dentistry at the Oral Health Sciences department at ACTA, as well as conducts research in the Dental Materials Science division. He also delivers lectures on this field at both national and international levels.