Very different worldwide dentists, oral surgeons and maxillofacial surgeons work together or not, having borderlines at very different levels or even no borderlines. In some countries dentists are practising bone augmentation, in others they don´t. However, in more severe cases a trained surgeon might be helpful, who is found among oral surgeons and/or maxillofacial surgeons.

GLOBAL IAOMS International Association of Oral and Maxillofacial Surgeons
    IAOMS lists all his national members
AO Academy of Osseointegration
GRIBOI Society for Injectable Osteoarticular Biomaterials / former: Groupe de Recherche Interdisciplinaire sur les Biomatériaux Ostéoarticulaires Injectables
AFRICA AAOMS African Association of Ora and Maxillofacial Surgeons  
  EAAMS Eastern Africa Association of Maxillofacial Surgeons     
EGYPT EAOMS Egyptian Association of Oral & Maxillofacial Surgeons
NIGERIA NAOMS Nigerian Association of Oral and Maxilofacial Surgery (disbanded)
SOUTH AFRICA SASMFOS The South African Society of Maxillo-Facial & Oral Surgeons
AMERICA ASMS The American Society of Maxillofacial Surgeons
CANADA CAOMS Canadian Assosiation of Oral and Maxillofacial Surgeons
USA AAOMS American Association of Oral and Maxillofacial Surgeons
ASIA AsianOMS Asian Association of Oral and Maxillofacial Surgeons
CHINA CSOMS   Chinese Society of Oral and Maxillofacial Surgery
  INDIA AOMSI   Association of Oral and Maxillofacial Surgeons of India
AUSTRALIA ANZAOMS Australian and New Zealand Association of Oral and Maxillofacial Surgeons
EUROPE EACMFS European Association for Cranio Maxillo Facial Surgery
EAO European Association of Osseointegration
EFOSS European Federation of Oral Surgery Societies
AUSTRIA OEGMKG Österreichische Gesellschaft für Mund-, Kiefer- und Gesichtschirurgie
BULGARIA OMFS-BG Society of Oral and Maxillofacial Surgeons in Bulgaria
FRANCE SFMBCB Société Francophone de Médecine Buccale et Chirurgie Buccale
SFSCMFCO French society of stomatology maxillo facial surgery and oral surgery association of facial surgeons
GERMANY BDO Berufsverband Deutscher Oralchirurgen 
DGMKG Deutsche Gesellschaft für Mund-, Kiefer- und Gesichtschirurgie e.V.
GREECE HAOMS Hellenic Association for Oral and Maxillofacial Surgery
HUNGARY MAAASZT Magyar Arc-, Állcsont- és Szájsebészeti Társaság
 ITALY SICMF Società Italiana di Chirurgia Maxillo-Facciale
  SICOI Società Italiana di Chirurgia Orale ed Implantologia  
NETHERLANDS NVMKA  Nederlandse Vereniging voor Mondziekten, Kaak- en Aangezichtschirurgie
POLAND POLFACES Polskie Towarzystwo Chirurgii Czaszkowo-Szczekowo-Twarzowej, Chirurgii Stomatologicznej i Implantologii
PORTUGAL SPCO Sociedade Portuguesa de Cirurgia Oral    
RUSSIA RAOMS Russian Association of Oral and Maxillofacial Surgery
SLOVAKIA SAOMFS Slovak Association of Oro-MaxilloFacial Surgeons
SLOVENIA ZMOKS Združenje za maksilofacialno in oralno kirurgijo Slovenije
SPAIN SECIB  Sociedad Española de Cirugia Bucal
SECOM Sociedad Española de Cirugía Oral y Maxilofacial
UNITED KINGDOM BAOS British Association of Oral Surgeons