| Juventud Odontológica Salvadoreña |
| 1967 - 1973 |
| Sociedad Dental de El Salvador |
| 1974 |
| Coordinador de Actividades Científicas |
| 1978 |
| Federación Odontológica de Centroamérica y Panamá |
| 1974 |
| American Dental Association |
| 1979 |
| American College of Prosthodontists |
| 1980 |
| Texas Dental Association |
| 1982 - 1993 |
| Dallas Country Dental Association |
| 1982 - 1993 |
| Federation of Prosthodontics Organizations |
| 1991 - 1993 |
| American Academy of Osseointegration |
| 1987 |
| International Association of Dental Research |
| 1984 - 1987 |
| International Association of Dental Research-Section, Dallas |
| 1984 - 1987 |
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San Salvador, El Salvador, C.A.
